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Data on Materials Science and Physical Chemistry Detailed by Researchers at Zhejiang University

May 30, 2014

By a News Reporter-Staff News Editor at Science Letter -- Data detailed on Science have been presented. According to news reporting originating from Hangzhou, People's Republic of China, by NewsRx correspondents, research stated, "Stabilization of colloids is of great significance in nanoscience for their fundamental research and practical applications. Electrostatic repulsion stabilized anisotropic colloids, such as graphene oxide (GO), can form stable liquid crystals (LCs)."

Our news editors obtained a quote from the research from Zhejiang University, "However, the electrostatic field would be screened by ions. To stabilize colloidal LCs against electrolyte is an unsolved challenge. Here, an effective strategy is proposed to stabilize GO LCs under harsh conditions by association of polyelectrolytes onto GO sheets. Using sodium poly(styrene sulfonate) (PSS) and poly[2-(methacryloyloxy)ethyndimethyl-(3-sulfopropyl)ammonium hydroxide (PMEDSAH), a kind of polyzwitterion, GO LCs were well-maintained in the presence of NaCl (from 0 M to saturated), extreme pH (from 1 to 13), and serum."

According to the news editors, the research concluded: "Moreover, PSS- or PMEDSAH-coated chemically reduced GO (rGO) also showed stability against electrolyte."

For more information on this research see: Polyelectrolyte-Stabilized Graphene Oxide Liquid Crystals against Salt, pH, and Serum. Langmuir, 2014;30(13):3715-3722. Langmuir can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society -; Langmuir -

The news editors report that additional information may be obtained by contacting X.L. Zhao, Zhejiang University, Dept. of Polymer Sci & Engn, Key Lab Macromol Synth & Functionalizat, Minist Educ MOE, Hangzhou 310027, Zhejiang, People's Republic of China. Additional authors for this research include Z. Xu, Y. Xie, B.N. Zheng, L. Kou and C. Gao (see also Science).

Keywords for this news article include: Asia, Science, Hangzhou, 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: Science Letter

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