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Investigators from Donghua University Report New Data on Chemical Engineering (Temperature-tunable plasmonic property and SERS activity of the...

July 2, 2014



Investigators from Donghua University Report New Data on Chemical Engineering (Temperature-tunable plasmonic property and SERS activity of the monodisperse thermo-responsive composite microgels with core-shell structure based on gold nanorod as ...)

By a News Reporter-Staff News Editor at Journal of Engineering -- Current study results on Chemical Engineering have been published. According to news reporting originating from Shanghai, People's Republic of China, by VerticalNews correspondents, research stated, "The monodisperse thermo-responsive composite microgels with well-defined core-shell structure based on gold nanorod as core and crosslinked poly(N-isopropylacrylamide) as shell were fabricated by seed-precipitation polymerization method using butenoic acid modified AuNRs as seeds."

Our news editors obtained a quote from the research from Donghua University, "Their core-shell structure and thermo-responsive property were verified by electron transmission microscopy, atomic force microscopy and dynamic light scattering technique, respectively. The ultraviolet-visible-near infrared absorption spectra measured at various temperatures show that the longitudinal localized surface plasmon resonance (LSPR) wavelength of the AuNR embodied inside the microgel can be reversibly tuned from 750 to 800 nm as temperature is changed within the range from 30 to 40 degrees C, indicating that the plasmonic property of the composite microgel is temperature-tunable."

According to the news editors, the research concluded: "When the composite microgels are used as surface enhanced Raman scattering (SERS) substrates for detection of the analyte having low affinity toward metal surface, their SERS activity can be modulated by temperature due to existence of the entrapment effect during their temperature triggered volume phase transition."

For more information on this research see: Temperature-tunable plasmonic property and SERS activity of the monodisperse thermo-responsive composite microgels with core-shell structure based on gold nanorod as core. Colloids and Surfaces A-Physicochemical and Engineering Aspects, 2014;452():46-50. Colloids and Surfaces A-Physicochemical and Engineering Aspects can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands.

The news editors report that additional information may be obtained by contacting X. Dong, Donghua Univ, Res Center Anal & Measurement, Shanghai 201620, People's Republic of China. Additional authors for this research include X.B. Zou, X.Y. Liu, P. Lu, J.M. Yang, D.L. Lin, L. Zhang and L.S. Zha.

Keywords for this news article include: Asia, Shanghai, Chemical Engineering, People's Republic of China

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


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Source: Journal of Engineering


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