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New Findings from Tongji University in the Area of Materials Science and Physical Chemistry Reported

February 21, 2014

By a News Reporter-Staff News Editor at Science Letter -- A new study on Science is now available. According to news reporting from Shanghai, People's Republic of China, by NewsRx journalists, research stated, "Rigid and stable networks composed of litchi-shaped microspheres were formed via hierarchical self assembly (SA) of oxide based nanoparticles (NPs). The phenomenon of the apparent changes from NPs networks to microspheres networks after the gelation was similar to normal microsyneresis."

The news correspondents obtained a quote from the research from Tongji University, "However, in situ composition evolution results indicate that the SA is driven by interparticle dehydration, but not affinity difference between the network for itself and for the solvent. In-situ small-angle X-ray scattering (SAXS), UV-vis-NIR, and electric conductivity were used to study the microsyneresis process. To further demonstrate the mechanism, extra complexant was added and successfully restrained the NPs microsphere transition by inactivating the surface hydroxyl of the NPs."

According to the news reporters, the research concluded: "Considering the structural similarity, this work may provide a new approach to control the assemblies of diverse oxide-based NPs."

For more information on this research see: Reaction-Induced Microsyneresis in Oxide-Based Gels: The Assembly of Hierarchical Microsphere Networks. Langmuir, 2013;29(36):11208-11216. Langmuir can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society -; Langmuir -

Our news journalists report that additional information may be obtained by contacting A. Du, Tongji Univ, Shanghai Key Lab Special Artificial Microstruct M, Sch Phys Sci & Engn, Shanghai 200092, People's Republic of China. Additional authors for this research include B. Zhou, W.W. Xu, Q.J. Yu, Y. Shen, Z.H. Zhang, J. Shen and G.M. Wu (see also Science).

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

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Source: Science Letter

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