Navigation Links
NUS scientists use low cost technique to improve properties and functions of nanomaterials
Date:7/22/2014

utilised an optical microscope-focused laser beam setup to 'draw' micropatterns directly onto large area MoS2 films as well as to thin the films.

With this simple and low cost approach, the scientists were able to use the focused laser beam to selectively 'draw' patterns onto any region of the film to modify properties of the desired area, unlike other current methods where the entire film is modified.

Interestingly, they also found that the electrical conductivity and photoconductivity of the modified material had increased by more than 10 times and about five times respectively. The research team fabricated a photodetector using laser modified MoS2 film and demonstrated the superior performance of MoS2 for such application.

This innovation was first published online in the journal ACS Nano on 24 May 2014.

Hidden images 'drawn' by focused laser beam on silicon nanowires could improve optical functionalities

In a related study published in the journal Scientific Reports on 13 May 2014, Prof Sow led another team of researchers from the NUS Faculty of Science, in collaboration with scientists from Hong Kong Baptist University, to investigate how 'drawing' micropatterns on mesoporous silicon nanowires could change the properties of nanowires and advance their applications.

The team scanned a focused laser beam rapidly onto an array of mesoporous silicon nanowires, which are closely packed like the tightly woven threads of a carpet. They found that the focused laser beam could modify the optical properties of the nanowires, causing them to emit greenish-blue fluorescence light. This is the first observation of such a laser-modified behaviour from the mesoporous silicon nanowires to be reported.

The researchers systematically studied the laser-induced modification to gain insights into establishing control over the optical properties of the mesoporous silicon nanowires. Their
'/>"/>

Contact: Carolyn Fong
carolyn@nus.edu.sg
65-651-65399
National University of Singapore
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Mount Sinai scientists and international team shed new light on schizophrenia
2. Scientists successfully generate human platelets using next-generation bioreactor
3. Scientists map one of most important proteins in life -- and cancer
4. Speedy computation enables scientists to reconstruct an animals development cell by cell
5. Singapore scientists discover genetic cause of common breast tumours in women
6. Scientists enlist big data to guide conservation efforts
7. Tiniest catch: University of Arizona scientists fishing expedition reveals viral diversity in the sea
8. Scientists complete chromosome-based draft of the wheat genome
9. Birdsongs automatically decoded by computer scientists
10. NIH scientists identify gene linked to fatal inflammatory disease in children
11. New UK study helps scientists understand melanoma development
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
NUS scientists use low cost technique to improve properties and functions of nanomaterials
(Date:9/23/2014)... whose turn it is to do the washing up, negotiating ... as many students returning to university for the new ... a house can be a tricky business. , And now ... that new technology to allow people to monitor their energy ... the tension. , The study by a team of technology ...
(Date:9/23/2014)... California , 23 de septiembre de ... lanzamiento del Sistema 1290 Infinity II LC, ... de Infinity en su portafolio de cromatografía ... científicos y directores de laboratorio que alcancen ... excepcional, facilidad de uso y capacidad de ...
(Date:9/22/2014)... 2014 A new American Cancer Society study suggests ... (SNAP), previously known as the food stamp program, ... eligible non-participants. The authors say the findings emphasize ... the dietary quality of SNAP participants. , The ... households with the resources to obtain a nutritionally ...
Breaking Biology News(10 mins):Smart meters could cause conflict for housemates, study shows 2Smart meters could cause conflict for housemates, study shows 3Agilent Technologies anuncia el lanzamiento del Sistema 1290 Infinity II LC 2Agilent Technologies anuncia el lanzamiento del Sistema 1290 Infinity II LC 3Federal food program puts food on the table, but dietary quality could be improved 2
... by the Smithsonian Institution has completed a new study ... a 3-foot-tall, 18,000-year-old hominin skeleton, discovered four years ago ... one of the most striking confirmations of the original ... one of the oldest human migrations to Asia. The ...
... 20, 2007) Fifteen students mentored by members of the ... receive the 2007ASPB Summer Undergraduate Research Fellowships (SURF). The ... to his or her research project for a 10-week ... to the mentor for lab supplies, a free student ...
... virus first struck New York City in 1999, news ... health officials alike, showing that even affluent, urban societies ... has been widely studied, there is still little known ... urban and rural areas. Assistant professor at the ...
Cached Biology News:New research sheds light on 'Hobbit' 2ASPB announces Summer Undergraduate Research Fellowship 2007 recipients 2ASPB announces Summer Undergraduate Research Fellowship 2007 recipients 3UGA Odum School of Ecology professor receives grant to study West Nile Virus in NYC 2
(Date:9/23/2014)... This is a professional and in-depth ... Resin industry in Global and China.The report provides ... applications and industry chain structure. Global market analysis ... a focus on history, developments, trends and competitive ... international and Chinese situation is also offered. , ...
(Date:9/23/2014)... (PRWEB) September 23, 2014 Erlab ... laboratory personnel since 1968 and Burdinola, supplier of laboratory ... a new filtered fume hood. , By ... fume hood, Burdinola will now offer an innovative solution ... wide range of chemicals, best-in-class detection technology, and communication ...
(Date:9/23/2014)... Proove Biosciences , the commercial and research leader ... association between specific genes and patients’ predisposition to anxiety ... Congress’ 27th Annual Scientific Program in Orlando, Florida. ... ‘Embracing Change.’ Mental health, and healthcare as a whole, ... presented by the Affordable Care Act to the growing ...
(Date:9/23/2014)... , Sept. 23, 2014 Research ... "Proteomics Markets for Research and IVD Applications ... report to their offering. ... proteomics applications, both in their research use and ... including the study of the structure and function ...
Breaking Biology Technology:Phenolic Resin Industry (International, China) Development Policy and Plan Now Available at ReportsnReports.com 2Erlab Partners with Burdinola to Deliver an Innovative Filtered Fume Hood 2Proove Biosciences Will Be Exhibiting New Genetic Research at the 27th Annual US Psych Congress Scientific Program 2Proove Biosciences Will Be Exhibiting New Genetic Research at the 27th Annual US Psych Congress Scientific Program 3Proteomics Markets for Research and IVD Applications (Mass Spectrometry, Chromatography, Microarrays, Electrophoresis, Immunoassays, Other Technologies) 2Proteomics Markets for Research and IVD Applications (Mass Spectrometry, Chromatography, Microarrays, Electrophoresis, Immunoassays, Other Technologies) 3Proteomics Markets for Research and IVD Applications (Mass Spectrometry, Chromatography, Microarrays, Electrophoresis, Immunoassays, Other Technologies) 4
... Md. and BEIJING, Jan. 10, 2012 The global ... as Aeras and the China National Biotec Group (CNBG) ... develop new tuberculosis (TB) vaccines. The agreement between the ... largest biotechnology corporation in China signals a commitment by ...
... A superlens would let you see a virus in a drop ... It might, says Durdu Guney, make ultra-high-resolution microscopes as commonplace as ... a superlens, also known as a perfect lens, though people are ... so-called diffraction limit, so even the best won,t usually let us ...
... . , Scientists at Universidad Carlos III ... have joined efforts to develop new materials for thermonuclear ... oxide dispersion-strengthened, reduced-activation steel for the reactor structure. , ... the current energy crisis. It is produced when ...
Cached Biology Technology:Aeras and CNBG Sign Agreement on Tuberculosis Vaccine R&D 2Aeras and CNBG Sign Agreement on Tuberculosis Vaccine R&D 3Almost perfect: A breakthrough in superlens development 2New material for thermonuclear fusion reactors 2New material for thermonuclear fusion reactors 3
Human LAIR2 Biotinylated Affinity Purified PAb...
... The mycobacteria in Complete Freund's ... the injection site which enhances the immuneresponse. ... is used for the initial injections; Incomplete ... boosts. Antigens (preferably in saline) are typically ...
2,4-Dinitrophenyl hapten is conjugated to Human Serum Albumin (HSA) protein through lysine....
Alexa Fluor 350/488/594 Filter Set (Semrock Brightline) *mounted* *Zeiss Axio AF...
Biology Products: