Nanotechnology

Impact Factor 2010 for Nanoscience & Nanotechnology

2011-06-30T02:34:00.000-07:00

1. Nature Nanotechnology, Impact Factor 2010 = 30.306

2. Nano Letters, Impact Factor 2010 = 12.186

3. Nano Today, Impact Factor 2010 = 11.750

4. Advanced Materials, Impact Factor 2010 = 10.857

5. ACS Nano, Impact Factor 2010 = 9.855

6. Advanced Functional Materials, Impact Factor 2010 = 8.486

7. Small, Impact Factor 2010 = 7.333

8. Lab on a Chip, Impact Factor 2010 = 6.260

9. Nanomedicine, Impact Factor 2010 = 6.202

10. Biosensors & Bioelectronics, Impact Factor 2010 = 5.361

11. Nano Research, Impact Factor 2010 = 5.071

12. International Journal of Nanomedicine, Impact Factor 2010 = 4.976

13. Nanomedicine-Nanotechnology Biology and Medicine, Impact Factor 2010 =4.882

14. Journal of Physical Chemistry C, Impact Factor 2010 = 4.520

15. Biomicrofluidics, Impact Factor 20010 = 3.896

16. Nanotoxicology, Impact Factor 20010 = 3.880

17. Nanotechnology, Impact Factor 2010 = 3.644

18. Plasmonics, Impact Factor 2010 = 3.526

19. Microfluidics and Nanofluidics, Impact Factor 2010 = 3.504

20. Biomedical Microdevices, Impact Factor 2010 = 3.386

The 20 rank of journal impact factor 2010 in subject categories of NANOSCIENCE & NANOTECHNOLOGY comes from Journal Citation Reports (JCR) - Web Edition (2010) report.

Nano for Food

2010-08-24T02:07:00.000-07:00

Nanotechnology can offer some exciting potential benefits for the quality and safety of our foods. Top 10 Uses of NanoTechnology in Food are:

1. Contamination sensor: Flash a light to reveal the presence of E.coli bacteria.

2. Antimicrobial Packaging: Edible food films made with cinnamon or oregano oil, or nano particles of zinc, calcium other materials that kill bacteria.

3. Improved Food Storage: Nano-enhanced barrier keeps oxygen-sensitive foods fresher.

4. Enhanced Nutrient Delivery: Nano-encapsulating improves solubility of vitamins, antioxidants, healthy omega oils and other ‘nutraceuticals’.

5. Green Packaging: Nano-fibers made from lobster shells or organic corn are both antimicrobial and biodegradable.

6. Pesticide Reduction: A cloth saturated with nano fibers slowly releases pesticides, eliminating need for additional spraying and reducing chemical leakage into the water supply.

7. Tracking, Tracing, Brand Protection: Nanobarcodes can be created to tag individual products and trace outbreaks.

8. Texture: Food spreadability and stability improve with nano-sized crystals and lipids for better low-fat foods.

9. Flavor: Trick the tongue with bitter blockers or sweet and salty enhancers.

10. Bacteria Identification and Elimination: Nano carbohydrate particles bind with bacteria so they can be detected and eliminated.

From Website>> http://www.environmentalleader.com/2009/02/24/top-10-uses-of-nanotechnology-in-food/

Silicon Chips in Living Cells

2010-08-05T03:13:00.000-07:00

Many people have ever seen the movie "Terminator". In near future, we may see a real hybrid human-robot on the street!!!

Researches from Instituto de Microelectrónica de Barcelona, Spain have demonstrated for the first time how to integrate nanoelectronics into living cells. (Ref>> SMALL ). At First, they fabricated different batches of polysilicon chips (a typical semiconductor material) and then they selected one with lateral dimensions between of 1.5-3 µm and a thickness of 0.5 µm. It should be note that this dimension is much bigger than nano chip that using 22 nm process technology. Cells for the study were taken from an amoeba (Dictyostelium discoideum) and human HeLa (stem cells from the famous Henrietta Lacks line). The chips were implanted using many techniques such as lipofection, phagocytosis, and microinjection. After inserting the chips into the live cells, the researchers made sure that the cells remained alive and healthy. They found that over 90% of the chip-containing containing HeLa cell population remained viable 7 days after lipofection. The main applications of this chips will be the study of individual cells. The technology could significantly aid early detection of diseases and new cellular repair mechanisms.

Ref>> http://www.nanowerk.com/spotlight/spotid=15292.php

Nano for Vehicles

2010-07-11T22:16:00.000-07:00

Nanotechnology will improve the performance of future hybrid cars.

(Modified Fig. from Nanotechnology innovation opportunities for tomorrow’s defence book)

Future vehicles are expected to be lightweight, multipurpose, intelligence-guided, low in energy consumption, safe and protective for the passengers and highly comfortable.

Carbon Fiber(L-side) and Camouflage (R-side)

Materials
Nanotechnology enables the following material functionalities:

lightweight: high strength nanocomposite plastics are expected to replace metal and thus reduce weight and radar signature
smart components: components with built-in condition and load monitoring sensors, in the long term: self-repairing or self-healing materials
adaptive structures: active structures that adapt to changing conditions such as adaptive camouflage, suspension, flexible/rigid etc.
stealth: radar absorption coatings, camouflage
armour: nanoparticle, nanofiber reinforced antiballistic structures, reactive nanoparticle armour, shock absorbing nanotubes

Nano RFID
(More information, Please Click>> http://www.sciencedaily.com/releases/2010/03/100318113300.htm)

Information and communication technologies (ICT)
Vehicles are expected to be equipped with the following ICT features:

position sensing and signaling: GPS for navigation and with EAS for tracking and tracing vehicles
identification: RFID - tags for remote identification
security: radar, bolometer (infrared) for surveillance, and acoustic arrays for sniper detection
wireless networks: vehicle internal sensoric network will become wireless; connection to distributed external network
directional RF communication: micro antenna arrays enable directional radio communication with reduced power and signature

First All-Nanowire Sensor
(More information, Please Click>>http://www.technologyreview.com/computing/21244/?a=f)

Remote and unmanned guidance
With nanotechnology advanced sensor and wireless communication capabilities are becoming possible, e.g. via distributed ad-hoc sensor networks, enabling long range guidance of all kinds of vehicles. Advanced intelligence can be built-in thanks to the expanding μ-sensor capabilities, integration of sensor functions and information processing power. Especially for military use, continuous effort is put in the development of unmanned and autonomous vehicles e.g. for surveillance. Nanotechnology is crucial here to minimize size, weight and power consumption, important for long range coverage.

Nuclear Battery
(More information, Please Click>> http://blogs.discovermagazine.com/80beats/2009/10/12/a-penny-sized-nuclear-battery-could-keep-going-and-going/)

Power
Focus is on lightweight and energy-efficient powering. Reduction of thermal, radar and acoustic signature is anadditional aspect for the military. Main developments are:

hybrid, electrical/combustion, powering, driven by civil automotive, reduces consumption and signature
hydrogen fuel cell, preferably with diesel or biofuel (e.g. sugar) as hydrogen source via microreactor conversion
for miniaturised, unmanned vehicles: μ-fuel cell, μ-nuclear battery

From Ref:>> Frank Simonis & Steven Schilthuizen, Nanotechnology innovation opportunities for tomorrow’s defence Book

Impact Factor 2009 for Nanoscience & Nanotechnology

2010-06-20T08:00:00.000-07:00

1. Nature Nanotechnology, Impact Factor 2009 = 26.309
2. Nano Today, Impact Factor 2009 = 13.237
3. Nano Letters, Impact Factor 2009 = 9.991
4. Advanced Materials, Impact Factor 2009 = 8.379
5. ACS Nano, Impact Factor 2009 = 7.493
6. Advanced Functional Materials, Impact Factor 2009 = 6.990
7. Lab on a Chip, Impact Factor 2009 = 6.342
8. Small, Impact Factor 2009 = 6.171
9. Nanomedicine, Impact Factor 2009 = 5.982
10. Nanotoxicology, Impact Factor 2009 = 5.744
11. Nanomedicine-Nanotechnology Biology and Medicine, Impact Factor 2009 = 5.440
12. Biosensors & Bioelectronics, Impact Factor 2009 = 5.429
13. Nano Research, Impact Factor 2009 = 4.370
14. Journal of Physical Chemistry C, Impact Factor 2009 = 4.224
15. Plasmonics, Impact Factor 2009 = 3.723
16. Biomedical Microdevices, Impact Factor 2009 = 3.323
17. Microfluidics and Nanofluidics, Impact Factor 2009 = 3.286
18. Nanotechnology, Impact Factor 2009 = 3.137
19. Scripta Materialia, Impact Factor 2009 = 2.949
20. Biomicrofluidics, Impact Factor 2009 = 2.895

The 20 rank of journal impact factor 2009 in subject categories of NANOSCIENCE & NANOTECHNOLOGY comes from Journal Citation Reports (JCR) - Web Edition (2009) report.

Nano Implantable Electronics

2010-05-21T18:09:00.000-07:00

In recent years, implantable electronics have started to interface with wearable and pervasive networks. The main application of this technology has been focused on healthcare monitoring. For examples, a flexible data-logger patch with sleep-analysis software can be used to detect sleep disorders of patients. In principle, a patient places the patch on his or her forehead to record up to nine hours of EEG (electroencephalogram) and head movement when sleeping. The patch itself integrates all the electronics (electrodes, accelerometer, amplifiers, and so forth), batteries, and up to 36 Mbytes of memory in a flexible package. When the user places the patch on its base, capacitive coupling reads the logged data and inductive coupling recharges the batteries. The data can be transmitted to computer via wireless and analyzed with software in order to diagnose the sleep disorders.

Wireless ECG Patch (Figure from http://medgadget.com/archives/2007/10/)

One of challenges for this technology is to implantation under the skin. Implanted electronics could provide a clearer picture of what's going on inside the body to help monitor chronic diseases or progress after surgery, but biocompatibility issues restrict their use. Many materials commonly used in electronics cause immune reactions when implanted. And in most cases today's implantable devices must be surgically replaced or removed at some point, so it's only worth using an implant for critical devices such as pacemakers. Prof. Fiorenzo Omenetto from Tufts University has demonstrated the use of silk substrates fitted with ultra-thin silicon transistors that can be implanted to conform to the body's tissues, opening the door for enhanced implantable medical devices of various uses.

Nano Implantable Electronics under the skin, an array of light-emitting diodes could signal the concentration in the blood of biomarkers such as insulin. (Figure from http://www.technologyreview.com/biomedicine/25086/)

He and co-workers has used silk films to hold in place arrays of tiny silicon transistors and LEDs--a possible basis for implantable devices that will help identify the concentration of disease markers. The researchers have shown that the devices function fine in small animals, with no evidence of scarring or immune response. The silk dissolves, leaving behind a small amount of silicon and other materials used in the circuits. The video that shows development of an implantable electronics is presented below.

Nano Implantable Electronics is one of ten emerging technologies 2010 published by MIT Review.

Top Ten Journals in Nanoscience & Nanotechnology

2010-03-27T15:32:00.000-07:00

1. Nature Nanotechnology, Impact Factor = 20.571, Publisher: Nature Publishing Group
2. Nano Letters, Impact Factor = 10.371, Publisher: American Chemical Society
3. Nano Today, Impact Factor = 8.795, Publisher: Elsevier
4. Small, Impact Factor = 6.525, Publisher: Wiley InterScience
5. Lab on a Chip, Impact Factor = 6.478, Publisher: Royal Society of Chemistry
6. Nanomedicine, Impact Factor = 6.093, Publisher: Future Medicine Ltd.
7. ACS Nano, Impact Factor = 5.472, Publisher: American Chemical Society
8. Biosensors & Bioelectronics, Impact Factor = 5.143, Publisher: Elsevier
9. Nanotoxicology, Impact Factor = 3.720, Publisher: Informa Healthcare
10. Plasmonics, Impact Factor = 3.488, Publisher: Springer

The rank of top ten journals in nanoscience & nanotechnology is based on journal impact factor from Journal Citation Reports (JCR) - Web Edition (2008)

Risks of Nanotechnology

2010-02-24T13:53:00.000-08:00

Nowadays, nanotechnology has been applied to consumer products, i.e. T-shirt with Nanosilver or Cosmetics doped with Nanoparticles. One popular question is that “Nanotechnology used has any potential risk to envelopment or to human health or not?”. Prof. Robert Schiestl from UCLA's Jonsson Comprehensive Cancer Center reported that titanium dioxide (TiO₂) nanoparticles, found in everything from cosmetics and sunscreen to paint and vitamins, caused systemic genetic damage in mice. (TiO₂) nanoparticles can accumulate in different organs because the body has no way to eliminate them. And because they are so small, they can go everywhere in the body, even through cells, and may interfere with sub-cellular mechanisms. In his study, mice were exposed to the TiO₂ nanoparticles in their drinking water and began showing genetic damage on the fifth day. The human equivalent is about 1.6 years of exposure to the nanoparticles in a manufacturing environment.

(TiO₂) nanoparticles & Pitiful rats & Carbon nanotube

(TiO₂nanoparticles Figure from http://newsroom.ucla.edu/portal/ucla/nanoparticles-used-in-common-househould-112679.aspx
(Carbon nanotube Figure from www.zyvexlabs.com/EIPBNuG/EIPBN2008/2008.html)

Carbon nanotube is one of the most popular nanomaterials that are widely used in Lab or in real world applications because of its unique properties. But a great deal remains unknown about whether this material causes respiratory or other health problems. Researchers at North Carolina State University have found that carbon nanotubes can affect the outer lining of the lung in mice after a single inhalation. The findings raise concerns that inhaled carbon nanotubes may cause pleural fibrosis and/or mesothelioma. (Ref: Nature Nanotechnology 4, 747 - 751 (2009))

Nanosilver & Nemo fish and his friends
(Nanosilver Figure from http://www.slashgear.com/nano-silver-could-cause-environmental-pollution-1422792/)

The fabric with Nanosilver is able to move moisture away from the body, to enhance fabric drying, and to extinguish the growing of bacteria. A group of Swiss scientists tested how well silver nanoparticles stayed in treated fabrics under conditions similar to a washing machine. They found that most of the released particles were relatively large and that most came out of the fabrics during the first wash. The total released varied from 1.3 to 35 percent of the total nanosilver in the fabric. the released silver nanoparticles may not be toxic to people as other metals but silver can be deadly to many many fresh- and salt-water organisms – especially at their young stages of life. Many species of fish and shellfish, as well as their food, are susceptible to the metal. Widespread exposure to silver could impact some of these and disrupt ecosystem health. (Ref: Environ. Sci. Technol. 43, 8113–8118 (2009))
Up to now, no paper has not been reported for the effect of nanoparticles on human health directly. However, from many studies above, the nanoparticles can enter into human body via inhalation and these nanoparticles can become lodged in the lungs. Therefore, you must wear a face mask when you work with nano researches ( except with nano computational). And You should not use any products that can release a large amount of nanoparticles.

How to make nanoscal materials?

2009-12-03T12:14:00.000-08:00

In general, there are two approaches for the manufacture of nanoscal materials, namely; (I) top-down and (II) bottom-up methods. The top-down method refers to the uses of the traditional workshop or microfabrication method to cut, mill, and shape materials into the desired shape and order. The best known example of top-down method is lithography process. For example, a silicon wafer is coated with a layer of photoresist by spin coating technique. The photo resist-coated wafer is then prebaked to drive off excess on a hotplate. After prebaking, the photoresist is exposed to a pattern of intense light. The lithography is used to shine light on only certain parts of the wafer. Some lithography (i.e. E-beam) can provide patterns down to 10 nm. For most photoresists, the light breaks down that portion of the coating and frees it up for etching and doping. This is top-down method because it starts from a bulk materiel.

(L-side) top-down method (From http://www.nanoscience.at/aboutnano_en.html)
(R-side) bottom-up method (From http://www.impactlab.com/2008/03/31/nano-love/)

The bottom-up method refers methods that create from smaller components (usually molecular) built up into more complex assemblies. There are two fundamentally different ways of fabricating things from the bottom up (Ref. from Nanowerk).
- Self-assembly : is common throughout nature and involves components from the molecular (e.g. protein folding) to the planetary scale (e.g. weather systems) and even beyond (e.g. galaxies).
- Molecular assembly : is proposed that device is able to guide chemical reactions by positioning reactive molecules with atomic precision.
Example of bottom-up method is ZnSe nanowires grown on a ZnSe particle which appeared as a heart shape (Nanolove).

Nanopiezoelectronics

2009-10-22T12:38:00.000-07:00

Nanopiezoelectronics is one of ten of Emerging Technologies 2009 published by MIT Review. It is well-known that piezoelectricity is the ability of some materials such as Lead Zirconate Titanate (PZT) to generate an electric field or electric potential when it is applied mechanical stress. Nowadays, the piezoelectric is focused on nanotechnology for self-powered devices that do not require replaceable power supplies such as batteries. Prof. Zhong Lin Wang from Georgia Institute of Technology demonstrated to bend zinc oxide nanowire by the probe of AFM. The zinc oxide nanowires could drives an electrical current and the electrical potential is in a range of few millivolts. In fact, zinc oxide nanowires not only exhibit the piezoelectric effect but are semiconductors that can be used to make the basic components of integrated circuits. Therefore, when two important properties are combined, Nanopiezoelectronics can be used electronic device (i.e. sensors) without external source of electricity. See more details>> Nanopiezoelectronics

The technologies from Nanopiezoelectronics in Future.

(Credit: Byran Christie Design)
From>> http://www.technologyreview.com/read_article.aspx?id=22118&ch=specialsections&sc=tr10&pg=2)

Computational molecular modeling and simulation

2007-09-13T07:16:00.000-07:00

Computational molecular modeling and simulation approaches have become very powerful tools that can be used to predict and investigate atomic structure, geometrical and electronic properties, binding energies, charge transfer, interactions between molecules, hydration structure, etc. The two most common models that are used in the molecular modeling and simulation are quantum mechanics and molecular mechanics. The choice of technique depends on the conditions such as desired properties of molecules, reliable results comparing with the experimental results, the length and time scales of interested systems, availability of computer resources for calculations, etc. In general, a few tens to hundreds of atoms are very accurately simulated with quantum mechanics methods, wherein the simulations are aimed toward the solution of the complex quantum many-body Schrödinger equation of the atomic system (including nuclei and electrons), using numerical algorithms. For larger size systems (hundreds of thousands of atoms), classical atomistic or molecular dynamic (MD) simulations, which refer most commonly to the situation wherein the motion of atoms or molecules is treated using approximate finite difference equations of Newtonian mechanics are used.

See Molecular Simulation Center Point (Thailand) at http://nanotech.sc.mahidol.ac.th/simulation/index.html

Top 10 Universities or Institutions on Papers of Nano Science

2007-09-02T09:32:00.000-07:00

1. University of California at BERKELEY, USA
2. University of Science and Technology of China, China
3. OSAKA University, Japan
4. TOHOKU University, Japan
5. GEORGIA Institute of Technology, USA
6. MIT, USA
7. BEIJING University, China
8. Centre National De La Recherche Scientifique, France
9. University of Tokyo, Japan
10. University of ILLINOIS, USA

See the more details at
Ref:>> http://www.ustc.edu.cn/en/article/0b/42fe19ba/

Top Ten of Nano Products

2007-08-20T02:21:00.000-07:00

1. Tiny Chips Are Suddenly Hip - Apple Computer's iPod Nano Click>>

2. Fat Busting With Nanotech - Shemen Industries Canola Active Click>>

3. Tootsie Roll's Nanotech Nemesis - O'Lala Foods Choco'la Chewing Gum Click>>

4. A Nanotech Facial - Zelens Fullerene C-60 Face Cream Click>>

5. A Nano-ville Slugger- Easton Sports Stealth CNT Bat Click>>

6. Casual Apparel With Nano-Style - Nanotex Click>>

7.Stink-Proof Nano Soxs - ARC Outdoors, ArcticShield Socks Click>>

Shiny Happy Homes

8. Behr NanoGuard Paint; and
9. Pilkington Activ Glass Click>>

10.Cleaner Air Through Science - NanoTwin Technologies, NanoBreeze Air Purifier

Click>>

Reference: Josh Wolfe, Forbes/Wolfe Nanotech Report from www.forbes.com or Click http://www.forbes.com/investmentnewsletters/2006/01/10/apple-nano-in_jw_0109soapbox.inl.html

Scanning Probe Microscopy and Nanotechnology Revolution

2007-08-12T09:16:00.001-07:00

The importance and timeliness of materials science and engineering in the emerging fields of nanoscience and nanotechnology, driven by the electronics and biotechnology industries cannot be overstated. There is a big gap between the scale of individual molecular structures and the sub-microscopic components on microprocessors. That gap, which spans from about one nanometer to several hundred nanometers (1-100 nm), is where fundamental properties of materials are defined. Using SPMs, scientists and engineers can presently "see" and analyze the atomic and molecular landscapes of material surfaces. SPM-based force-feedback instruments are under development to manipulate nanostructures and "feel" and move the atoms and molecules on a material surface. The evolution of nanoscience and nanotechnology, resulting in better control over the way atoms and molecules assemble into tiny structures; will make possible in the near future an unprecedented technological capability to develop novel materials and advanced materials processes at the molecular and possibly atomic scale.

Curriculum Vitae

2007-05-01T08:56:00.000-07:00

Dr. Chatchawal Wongchoosuk (Boy)
ดร. ชัชวาล วงศ์ชูสุข
(PDF Version)
Address: Modern Nanotechnology Group, Department of Physics, Faculty of Science, Kasetsart University, Phahon Yothin Road, Bangkok 10900, THAILAND.
Website: http://nano-ku.webs.com
Email: boy_nanotube@yahoo.com
Tel: +668 6706 1269

Education:

2001-2005 B.Sc. Physics (First Class Honors), Prince of Songkla University.
2005-2007 M.Sc. Physics (International Program), Mahidol University.
2007-2011 Ph.D. Physics (International Program), Mahidol University.
Visiting Scholar: Laboratory for Nanotechnology at the Institute of Microsystem Engineering (IMTEK), Albert Ludwigs University Freiburg, Germany.
Visiting Scholar: Quantum Chemistry Group, Institute for Advanced Research and Department of Chemistry, Graduate School of Science, Nagoya University, Nagoya, Japan

List of Publications:

Journal Publications

-2010 C. Wongchoosuk, A. Wisitsoraat, D. Phokharatkul, A. Tuantranont, and T. Kerdcharoen, Tungsten Oxide Thin Film doped with Multi-walled Carbon Nanotubes for Hydrogen Gas Sensor, Sensors 2010, Vol. 10, pp. 7705-7715.
-2010 C. Wongchoosuk, A. Wisitsoraat, A. Tuantranont, T. Kerdcharoen, "Portable Electronic Nose Based on Carbon Nanotube-SnO₂ Gas Sensors and Its Application for Detection of Methanol Contamination in Whiskeys", Sensors and Actuators B: Chemical 2010, Vol. 147, pp. 392-399.
-2009 C. Wongchoosuk, M. Lutz and T. Kerdcharoen, “Detection and classification of human body odor using an electronic nose”, Sensors, Volume 9, Issue 9, (2009), pp. 7234-7249.

-2009 C. Wongchoosuk, A. Udomvech and T. Kerdcharoen, “The geometrical and electronic structures of open-end fully functionalized single-walled carbon nanotubes”, Current Applied Physics, Volume 9, Issue 2, March 2009, pp. 352-358.
-2009 C. Wongchoosuk, S. Choopun, A. Tuantranont and T. Kerdcharoen, “Au-doped Zinc Oxide Nanostructure Sensors for Detection and Discrimination of Volatile Organic Compounds”, Materials Research Innovation, Vol. 13, No. 3, (2009), pp. 185-188
-2008 C. Wongchoosuk, S. Krongsuk and T. Kerdcharoen, "Theoretical Investigations on the Tip-Functionalized Carbon Nanotubes Interacting with Water", International Journal of Nanoparticles. Volume 1 - Issue 2 - 2008, pp 136 - 151.

International Conference Proceedings

-2010 P. Lorwongtragool, C. Wongchoosuk, T. Kerdcharoen, Portable Artificial Nose System for Assessing Air Quality in Swine Buildings, Proceedings of the 2010 Electrical Engineering/Electronics, Computer, Telecommunications, and Information Technology International Conference (ECTI-2009), 19-21 May 2009, The Empress Hotel Convention Centre, Chiang Mai, Thailand. (IEEE Explore Database), (Oral Presentation)
-2009 C. Karuwan, A. Wisitsoraat, D. Phokharatkul, T. Pogfai, C. Wongchoosuk, T. Kerdcharoen, A.Tuantranont, “Electronic Tongue: Plasma Functionalized Carbon Nanotube Electrochemical Sensor Array on PDMS/Glass Chip”, IEEE International Symposium on Biomedical Engineering (IEEE ISBME 2009) , 14-18 December 2009, A Royal Méridien Hotel, Bangkok, Thailand. (IEEE Explore Database), (Oral Presentation)
-2009 C. Wongchoosuk, A. Wisitsoraat, A. Tuantranont and T. Kerdcharoen, “Mobile Electronic Nose Based on Carbon Nanotube-SnO2 Gas Sensors: Feature Extraction Techniques and Its Application”, Proceedings of the 2009 Electrical Engineering /Electronics, Computer, Telecommunications, and Information Technology International Conference (ECTI-2009), 6-9 May 2009, Ambassador City Jomtien Pattaya, Pattaya, Thailand. (IEEE Explore Database), (Oral Presentation)
-2008 C. Wongchoosuk, M. Lutz, A. Tuantranont and T. Kerdcharoen, “James Bond Electronic Nose for Estimation of Thai Tea Aroma” International Conference on Tea Production and Tea Products, 26-28 November 2008, Mae Fah Luang University, Chiang Rai, Thailand. (Poster Presentation)
-2008 C. Wongchoosuk, T. Techalertmanee, S. Sahasithiwat, A. Tuantranont and T. Kerdcharoen, “Discrimination of Thai alcoholic beverages using carbon black-polymer composite sensor array”, The 4th International Conference on Technological Advances of Thin Films & Surface Coatings (ThinFilms 2008), 13-16 July 2008, Singpaore. (Poster Presentation)
-2008 C. Wongchoosuk, S. Choopun, A. Tuantranont and T. Kerdcharoen, “Au-doped zinc oxide nanostructure sensors for detection and discrimination of volatile organic compounds”, The 2nd International Conference on Functional Materials and Devices (ICFMD 2008), 16-19 June 2008, Kuala Lumpur, Malaysia.(Poster Presentation)
-2008 C. Wongchoosuk, M. Lutz and T. Kerdcharoen, “Correction of humidity effect for detection of human body odor”, Proceedings of the 2008 Electrical Engineering/Electronics, Computer, Telecommunications, and Information Technology International Conference (ECTI-2008), 14-17 May 2008, Phuket, Thailand. (IEEE Explore Database), (Oral Presentation)
-2008 C. Wongchoosuk, M. Lutz, A. Tuantranont and T. Kerdcharoen, “Development of the Hardware and Software for Human Body Odor Discrimination”, The 5th International Joint Conference on Computer Science and Software Engineering (JCSSE-2008), 7-9 May 2008, Kanchanaburi, Thailand. (Oral Presentation)
-2007 Chatchawal Wongchoosuk, Supab Choopun, Adisorn Tuantranont, Teerakiat Kerdcharoen, “Portable electronic nose based on Au-doped ZnO nanostructure sensors for classification of Thai alcohols”, First International Workshop on Nanotechnology and Application (IWNA 2007), 15-17 November 2007, Vung Tau, Vietnam. (Oral Presentation)
-2007 C. Wongchoosuk, S. Krongsuk and T. Kerdcharoen, “First Principles and MD Simulation Study of the Interaction of Functionalized Carbon Nanotubes with Water Molecules”, Proceeding of the 7th IEEE International Conference on Nanotechnology (IEEE-NANO 2007), 2-5 August 2007, Hong Kong Convention & Exhibition Centre, Hong Kong, China. (IEEE Explore Database), (Oral Presentation)
-2007 C. Wongchoosuk, S. Krongsuk and T. Kerdcharoen, “Computational Molecular Modeling and Simulation of Functionalized Carbon Nanotubes”, Proceedings of the 2007 Electrical Engineering/Electronics, Computer, Telecommunications, and Information Technology International Conference, 9-12 May 2007, Mae Fah Luang University, Chiang Rai, Thailand. (Oral Presentation)
-2006 C. Wongchoosuk, A. Udomvech and T. Kerdcharoen, “Open-ended Functionalized Single-walled Carbon Nanotubes: A Quantum Mechanics Study of The Effects of Tubule Length and Functional Groups” the 1st International Conference on Applied Science (ICAS) in Laos (Vientiane) on Nov 5-7, 2006. (Oral Presentation)

National Conference Proceedings

-2009 C. Wongchoosuk, D. Phokharatkul, A. Wisitsoraat, A. Tuantranont and T. Kerdcharoen, “Synthesis of Vertically Aligned Open-end Carbon Nanotubes Using CVD with Water Etching Technique”, Siam Physics Congress 2009, March 19-21, 2009, Cha-am Methavalai Hotel, Phetchburi, Thailand.
-2009 W. Donkrajang, S. kladsomboon, C. Wongchoosuk and T. Kerdcharoen, “Study of Interactions between Metalloporphyrins with Various Volatile Substances Using Computational Quantum Mechanics and Molecular Dynamics simulations”, 13th Annual National Symposium for Computational Science and Engineering (ANSCSE-2009), March 25-27, 2009, Kasetsart University, Bangkok, Thailand.
-2009 P. Lorwongtragool, C. Wongchoosuk, A. Udomvech and T. Kerdcharoen, “Computational studies on the dynamics and trajectories of Li+ intercalated into single-walled carbon nanotube”, 13th Annual National Symposium for Computational Science and Engineering (ANSCSE-2009), March 25-27, 2009, Kasetsart University, Bangkok, Thailand.
-2008 Chatchawal Wongchoosuk, Supab Choopun, Adisorn Tuantranont, Teerakiat Kerdcharoen, “Application of a Portable Electronic Nose Based on Au-doped ZnO Nanostructure Sensors for Alcohols Discrimination”, The 2nd Progress in Advance Materials; Micro/Nano Materials and Applications, 16-18 January 2008, Kosa Hotel, Khon Kaen, Thailand. (Poster Presentation), (The Best Poster Award in Material Applications and Industrials Session)
-2007 Chatchawal Wongchoosuk, Mario Lutz, Adisorn Tuantranont, Teerakiat Kerdcharoen, “Possibility of Electronic Nose for Health-Care Monitoring”, Proceedings of The 1st Symposium on Thai Biomedical Engineering (ThaiBME 2007), 18-19 December 2007, Rangsit University. (Oral Presentation)
-2007 Chatchawal Wongchoosuk, Mario Lutz, Adisorn Tuantranont, and Teerakiat Kerdcharoen, “Human Body Odor Monitoring using Artificial Olfaction Devices”, German-Thai Symposium on Nanoscience and Nanotechnology, 27-28 September 2007, Chonburi, Thailand.
-2007 Taveep Thaneerananon, Chatchawal Wongchoosuk and Teerakiat Kerdchareon, “Modeling Molecular Structures and Interractions of Porphyrazine (Pz) with Various Alcohols Sensing”, Proceeding of the 33rd Congress on Science and Technology of Thailand, 18-20 October 2007, Walailak University, Nakhon Si Thammarat, Thailand. (Poster Presentation)
-2007 Nitinan Sreesarakham, Chatchawal Wongchoosuk and Teerakiat Kerdcharoen, “Application of an Electronic Nose for Classification of Thai-instant Coffees”, Proceeding of the 33rd Congress on Science and Technology of Thailand, 18-20 October 2007, Walailak University, Nakhon Si Thammarat, Thailand. (Poster Presentation)
-2007 Surinya Traipop, Chatchawal Wongchoosuk, Mario Lutz, Teerakiat Kerdcharoen, “The Classification of Thai Herbs Using Artificial Olfaction Device”, Proceeding of the 33rd Congress on Science and Technology of Thailand, 18-20 October 2007, Walailak University, Nakhon Si Thammarat, Thailand. (Oral Presentation)
-2007 Rapeephan Ngenhlor, Chatchawal Wongchoosuk and Teerakiat Kerdcharoen, "Design of Artificial Olfaction Devices for Replacing Human Nose", The 1st Thailand National Nanotechnology Conference on Nanomaterials, Pharmaceutical, Devices and Application, 14-16 August 2007, Chiang Mai, Thailand. (Poster Presentation)
- 2007 Chatchawal Wongchoosuk and Teerakiat Kerdcharoen, "Adsorption of volatile organic compounds onto carbon nanotubes and graphene sheet as studied by density functional theory", The 1st Thailand National Nanotechnology Conference on Nanomaterials, Pharmaceutical, Devices and Application, 14-16 August 2007, Chiang Mai, Thailand. (Poster Presentation), (The 2 nd Winner Poster Award)
-2007 C. Wongchoosuk, S. Krongsuk, P. Singjai and T. Kerdcharoen, “Molecular Dynamics Simulations of Functionalized Carbon Nanotube in Water”, 11th Annual National Symposium for Computational Science and Engineering, 28-30 March 2007, Prince of Songkla University, Phuket campus. (Oral Presentation)
-2006 C. Wongchoosuk, S.Unai, K. Katanyukunanon, T. Kerdcharoen, “Demonstration Apparatus of Atomic Force Microscope for Nanoscience Study” 32nd Congress on Science and Technology of Thailand, 10-12 October 2006. Bangkok (Poster Presentation)
-2006 C. Wongchoosuk, A. Udomvech and T. Kerdcharoen, “The Geometry and Electronic Structure of the Finite-Sized Functionalized Single-Walled Carbon Nanotubes”, 10th Annual National Symposium for Computational Science and Engineering, 22-24 March 2006, Chiang Mai University. (Oral Presentation)
-2005 C. Wongchoosuk, A. Udomvech, T. Kerdcharoen, “The Electronic Structure of Functionalized Single-Walled Carbon Nanotubes”, 31st Congress on Science and Technology of Thailand, 18-20 October 2005, Suranaree University of Technology, Nakhon Ratchasima. (Poster Presentation)

Patents:
C. Wongchoosuk,M. Lutz, A. Tuantranont, T. Kerdcharoen,"Electronic Nose for human identification" Submitted No. 0901001349, [Thai patents]

Research Award:

Outstanding Research Award of the TRF in 2008, “Electronic Nose for Agriculture and Food"

Research Interest:
Molecular Simulation, Computational Nanotechnology, DFTB, Functionalization of Carbon Nanotubes,Fabrication of molecular devices, Electronic Nose, Nanocircuits, Nanorobots, Nanowire

Scholarships:
- Teaching Assistant Scholarship from Deparment of Physics, Mahidol University
- Research Assistantship from Center of Nanoscience and Nanotechnology, Mahidol University
- Institutional Strengthening Program (ทุนเสริมสร้างนักวิทยาศาสตร์รุ่นใหม่) from Faculty of Science, Mahidol University
- CHE-PhD-SW Scholarship (ทุนเครือข่ายเชิงกลยุทธ์ เพื่อผลิตและพัฒนาอาจารย์ในสถาบันอุดมศึกษา หลักสูตรในและร่วมต่างประเทศ) from Commission on Higher Education

Awards and Experience (in Thai):
ระดับมัธยมศึกษา
กิจกรรมและรางวัลพิเศษ
-พ.ศ. 2543 ได้ประกาศเกียรติคุณบัตรเป็นนักเรียนที่มีความประพฤติและปฏิบัติตนเป็น แบบอย่างที่ดี ประจำปีการศึกษา 2543

หน้าที่และความสามารถพิเศษ
-พ.ศ. 2543 เป็นคณะกรรมการนักเรียนของโรงเรียนนวมินทราชูทิศ ทักษิณ
-พ.ศ. 2543 เป็นสารวัตรนักเรียนนักศึกษาวิชาทหาร
-พ.ศ. 2542-2543 เป็นนักกีฬาบาสเกตบอลของโรงเรียนนวมินทราชูทิศ ทักษิณ
- พ.ศ. 2541-2543 เป็นหัวหน้ากองร้อยนักเรียนนักศึกษาวิชาทหาร

ผลงานทางวิชาการ
- พ.ศ. 2541-2543 ได้คะแนนรวมวิชาคณิตศาสตร์สูงสุดของรุ่นติดต่อกัน 5 ภาคการศึกษา
- พ.ศ. 2543 ชนะเลิศรางวัลเกียรติบัตรเหรียญทองแดง ทักษะทางคณิตศาสตร์ ประเภทบุคคล และประเภททีม ระดับมัธยมศึกษาตอนปลาย ในจังหวัดสงขลา

ระดับอุดมศึกษา
กิจกรรมและรางวัลพิเศษ
-พ.ศ. 2546 และ 2547 เป็นคณะกรรมการจัดกิจกรรมฟิสิกส์สัญจร คือการนำความรู้วิทยาการและ Lab การทดลองทางฟิสิกส์ไปเผยแผ่ให้กับนักเรียนระดับมัธยมศึกษาตอนต้อนและตอนปลายในโรงเรียนขนาดเล็กและขนาดกลางใน จ.สงขลา
-พ.ศ. 2546 เป็นคณะกรรมการจัดค่ายอาสาพัฒนาชนบท ได้ร่วมสร้างห้องสมุดให้กับโรงเรียนวัดสะทัง จ.พัทลุง ช่วยทำให้นักเรียนและคนในชุมชนได้มีแหล่งในการศึกษาหาความรู้ อีกทั้งยังกระตุ้นให้คนในชุมชนตระหนักถึงความสำคัญของการศึกษา
-พ.ศ. 2546 เป็นประธานจัดกีฬาสัมพันธ์ วิดยา-ศึกษา-วิดยา ซึ่งเป็นกีฬาประเพณีของคณะวิทยาศาสตร์ มหาวิทยาลัยสงขลานครินทร์วิทยาเขตหาดใหญ่ คณะ ศึกษาศาสตร์มหาวิทยาลัยสงขลานครินทร์วิทยาเขตปัตตานี คณะวิทยาศาสตร์ มหาวิทยาลัยทักษิณ
-พ.ศ. 2546 ได้เกียรติบัตรเป็นผู้ที่มีผลการเรียนดี ประจำปี 2546 จากคณะวิทยาศาสตร์ มหาวิทยาลัยสงขลานครินทร์
-พ.ศ. 2546 ได้เกียรติบัตรเป็นผู้ที่ทำกิจกรรมและมีผลการเรียนดีประจำปี 2546 จาก คณะวิทยาศาสตร์ มหาวิทยาลัยสงขลานครินทร์

หน้าที่และความสามารถพิเศษ
- พ.ศ. 2547 เป็นรองประธานฝ่ายกีฬา ของชมรมกีฬาคณะวิทยาศาสตร์
- พ.ศ. 2546-2547 เป็นรองประธานผู้ดำเนินการประชุมเชียร์ ของคณะวิทยาศาสตร์
- พ.ศ. 2546 เป็นอุปนายกฝ่ายบริหารของสโมสรนักศึกษาคณะวิทยาศาสตร์
- พ.ศ. 2544-2547 เป็นประธานชั้นปีภาควิชาฟิสิกส์
- พ.ศ. 2544-2547เป็นนักกีฬาบาสเกตบอลของคณะวิทยาศาสตร์ มหาวิทยาลัยสงขลานครินทร์

History of Carbon Nanotube

2007-02-28T21:12:00.000-08:00

Carbon nanotubes having nanoscale dimension (1-D) have been well-known over the past 15 years. The molecules were first discovered by Iijima in 1991 when he was studying the synthesis of fullerenes by using electric arc discharge technique. The high resolution transmission electron microscopy (HRTEM) was employed for observation of that phenomenon. Carbon nanotubes that Iijima observed were so called multi-walled carbon nanotubes (MWNTs), nested as Russian dolls, containing at least two graphitic layers, and generally have inner diameters of around 4 nm. Two years later, Iijima and Ichihashi of NEC and Bethune and colleagues of the IBM Almaden Research Center in California synthesized single-walled carbon nanotubes (SWNTs). The SWNTs were synthesized by the same route of producing MWNTs but adding some metal particles to the carbon electrodes. The appearance of SWNT is quite different to that of MWNT. The individual tubes have very small diameters (typically ~ 1nm), and are curled and looped rather than straight. In the early 1990s, two research groups predicted electronic properties of individual SWNTs. From their calculations, they found that SWNTs can be either metallic or semiconducting depending on their chirality and diameter. By the end of that decade, these particular predictions were confirmed by experiments. In the early 1990s, two research groups predicted electronic properties of individual SWNTs. From their calculations, they found that SWNTs can be either metallic or semiconducting depending on their chirality and diameter. By the end of that decade, these particular predictions were confirmed by experiments.

Left side: HRTEM images of two MWNTs and Right side: SWNTs rope: each black circle is the image of one SWNT of the rope (From Journet et al., Physique 4 (2003) 986.)

In the meantime, a lot of reviews which provide a comprehensive overview with respect to the synthesis, characterization, applications, and the basic mechanical and electronic properties of carbon nanotube have appeared. In the Next time, the structure, synthesis, properties and applications of CNTs are discussed in details. Because of many interesting properties that carbon nanotubes exhibit, CNTs have emerged to be one of the most intensively investigated nanostructure materials. The field has been developed rapidly, and a number of publications per year have been increased almost exponentially. For instances, the number of publications exceeded three thousand in the year 2003. See more detail>> http://sites.google.com/site/nanomodern/Home/CNT

Nanotechnology

2007-02-28T20:51:00.000-08:00

Nanotechnology is one of the most important research and development frontiers in modern science. It was originally used to define any work done on the molecular scale, or one billionth of a meter (nm or 10^–9 m). At nanometer length scale, the properties of a material such as its melting point, its electronic and optical properties will change. Sometime, the classical theory can not describe some phenomena of the material in atomic level. However, the change of these properties come new opportunities for technological and commercial development, and applications.

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