News Column

Investigators at Chung Ang University Report Findings in Nanostructures

June 3, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- Fresh data on Nanostructures are presented in a new report. According to news originating from Seoul, South Korea, by NewsRx correspondents, research stated, "In the area of artificial hydrogels, simultaneous engineering of the volume transition characteristics and mechanical properties of stimuli-responsive hydrogels is an important subject. By unrestricted architecting of hierarchical structures, natural hydrogels are able to provide a wide range of swelling and mechanical properties, beyond the limits of artificial hydrogels."

Our news journalists obtained a quote from the research from Chung Ang University, "Herein, a combination of nanostructures and microstructures was developed to construct superporous hydrogels. Fibers of microfibrillated cellulose (MFC), an eco-friendly reinforcing material, were used as nanostructures, aligned micropores were used as microstructures, and in situ photopolymerization was used to immobilize the two structures together within the gel networks of poly(N-isopropyl acrylamide) (PNIPAm). The introduction of MFC distinctly enhanced volume transition, mainly by decreasing the swelling ratios above the transition. The introduction of directional micropores increased the swelling ratio below the transition and decreased the swelling ratio above the transition, thereby also enhancing the volume transition. Additionally, the formation of aligned micropores achieved fast water infiltration, which is beneficial for superabsorbent applications. The introduction of aligned micropores reduced the elastic modulus, but this could partially be compensated for by reinforcement with MFC."

According to the news editors, the research concluded: "This combination of crystalline nanofibers and aligned micropores has great potential for the development of stimuli-responsive superporous hydrogels outperforming current artificial hydrogels."

For more information on this research see: Superporous thermo-responsive hydrogels by combination of cellulose fibers and aligned micropores. Carbohydrate Polymers, 2014;105():184-192. Carbohydrate Polymers can be contacted at: Elsevier Sci Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier -; Carbohydrate Polymers -

The news correspondents report that additional information may be obtained from K.S. Halake, Chung Ang University, Dept. of Chem Engn & Mat Sci, Seoul 156756, South Korea (see also Nanostructures).

Keywords for this news article include: Asia, Seoul, South Korea, Nanostructural, Nanostructures, Nanotechnology, Emerging Technologies

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Source: Life Science Weekly

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