News Column

Studies from Ewha Woman's University Reveal New Findings on Science

June 27, 2014

By a News Reporter-Staff News Editor at Science Letter -- Researchers detail new data in Science. According to news originating from Seoul, South Korea, by NewsRx correspondents, research stated, "Carbon dioxide (CO2) is an important green house gas. This is providing an incentive to develop new strategies to detect and capture CO2."

Our news journalists obtained a quote from the research from Ewha Woman's University, "Achieving both functions within a single molecular system represents an unmet challenge in terms of molecular design and could translate into enhanced ease of use. Here, we report an anion-activated chemosensor system, NAP-chol 1, that permits dissolved CO2 to be detected in organic media via simple color changes or through ratiometric differences in fluorescence intensity. NAP-chol 1 also acts as a super gelator for DMSO. The resulting gel is transformed into a homogeneous solution upon exposure to fluoride anions. Bubbling with CO2 regenerates the gel. Subsequent flushing with N2 or heating serves to release the CO2 and reform the sol form. This series of transformations is reversible and can be followed by easy-to-discern color changes. Thus, NAP-chol 1 allows for the capture and release of CO2 gas while acting as a three mode sensing system."

According to the news editors, the research concluded: "In particular, it permits CO2 to be detected through reversible sol-gel transitions, simple changes in color, or ratiometric monitoring of the differences in the fluorescence features."

For more information on this research see: Anion-activated, thermoreversible gelation system for the capture, release, and visual monitoring of CO2. Scientific Reports, 2014;4():4593. (Nature Publishing Group -; Scientific Reports -

The news correspondents report that additional information may be obtained from X. Zhang, Dept. of Chemistry and Nano Science and Dept. of Bioinspired Science, Ewha Womans University, Seoul 120-750, South Korea. Additional authors for this research include S. Lee, Y. Liu, M. Lee, J. Yin, J.L. Sessler and J. Yoon (see also Science).

Keywords for this news article include: Asia, Seoul, Science, South Korea.

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Source: Science Letter

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