News Column

Researchers at University of Ulsan Report New Data on Quantum Dots (One-pot synthesis of N-doped graphene quantum dots as a fluorescent sensing...

September 9, 2014



Researchers at University of Ulsan Report New Data on Quantum Dots (One-pot synthesis of N-doped graphene quantum dots as a fluorescent sensing platform for Fe3+ ions detection)

By a News Reporter-Staff News Editor at Physics Week -- Investigators publish new report on Quantum Dots. According to news originating from Ulsan, South Korea, by VerticalNews correspondents, research stated, "Herein, a facile bottom-up approach for producing nitrogen doped graphene quantum dots (N-GQDs) was carried out by the carbonization of citric acid through hydrothermal treatment in the presence of ammonia and a fluorescent sensor for determination of Fe3+ ions has been demonstrated. These synthesized N-GQDs consist mostly of 1-3 layers having a uniform size of about 3.5 nm, and the nitrogen atoms were successfully introduced into the lattice of graphene quantum dots (GQDs)."

Our news journalists obtained a quote from the research from the University of Ulsan, "Due to the introduction of nitrogen atoms, N-GQDs exhibit a bright green luminescence with a higher quantum yield of 30.7%, whereas GQDs show a blue luminescence with a quantum yield of 4.5%. Furthermore, a novel sensor application of N-GQDs was performed for a fluorescent sensing platform for the detection of Fe3+ ions with high sensitivity and selectivity."

According to the news editors, the research concluded: "These N-GQDs are promising for applications for biosensors, biological imaging and optoelectronic devices."

For more information on this research see: One-pot synthesis of N-doped graphene quantum dots as a fluorescent sensing platform for Fe3+ ions detection. Sensors and Actuators B-Chemical, 2014;202():568-573. Sensors and Actuators B-Chemical can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland.

The news correspondents report that additional information may be obtained from T.V. Tam, University of Ulsan, Sch Chem Engn, Ulsan 680749, South Korea. Additional authors for this research include N.B. Trung, H.R. Kim, J.S. Chung and W.M. Choi.

Keywords for this news article include: Ulsan, South Korea, Asia, Emerging Technologies, Nanotechnology, Quantum Dots, Quantum Physics

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


For more stories covering the world of technology, please see HispanicBusiness' Tech Channel



Source: Physics Week


Story Tools






HispanicBusiness.com Facebook Linkedin Twitter RSS Feed Email Alerts & Newsletters