By a News Reporter-Staff News Editor at Biotech Week -- A new study on Quantum Dots is now available. According to news reporting out of Shanghai, People's Republic of China, by NewsRx editors, research stated, "A novel fluorescent sensor based on graphene quantum dots (GQDs) was synthesized for determination of paranitrophenol (4-NP) in water sample, where molecularly imprinted polymer (MIP) was incorporated in GQDs-based sensing system for the first time. A simple hydrothermal method was used to fabricate silica-coated GQDs."
Our news journalists obtained a quote from the research from East China Normal University, "The final composite was developed by anchoring the MIP layer on the silica-coated GQDs using 3-aminopropyltriethoxysilane as functional monomer and tetraethoxysilane as crosslinker. The combination of GQDs and MIP endows the composite with stable fluorescent property and template selectivity. Due to resonance energy transfer from GQDs (donor) to 4-NP (acceptor), the fluorescence of the MIP-coated GQDs composite can be efficiently quenched when 4-NP molecules rebound to the binding sites. The composite was applied to the detection of the non-emissive 4-NP and exhibited a good linearity in range of 0.02-3.00 mu g mL(-1) with the detection limit of 9.00 ng mL(-1) (S/N=3)."
According to the news editors, the research concluded: "This work may open a new possibility for developing GQDs-based composite with selective recognition, and it is desirable for chemical sensing application."
For more information on this research see: A novel composite of graphene quantum dots and molecularly imprinted polymer for fluorescent detection of paranitrophenol. Biosensors & Bioelectronics, 2014;52():317-323. Biosensors & Bioelectronics can be contacted at: Elsevier Advanced Technology, Oxford Fulfillment Centre The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier - www.elsevier.com; Biosensors & Bioelectronics - www.elsevier.com/wps/product/cws_home/405913)
Our news journalists report that additional information may be obtained by contacting Y. Zhou, E China Normal Univ, Dept. of Environm Sci, Shanghai 200241, People's Republic of China. Additional authors for this research include Z.B. Qu, Y.B. Zeng, T.S. Zhou and G.Y. Shi (see also Quantum Dots).
Keywords for this news article include: Asia, Shanghai, Quantum Dots, Nanotechnology, Quantum Physics, Emerging Technologies, People's Republic of China
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