科研之友
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摘要
To circumvent the need for direct UV excitation in a supramolecular hydrogel composed of an azobenzene-modified poly( acrylic acid) copolymer and deoxycholate-beta-cyclodextrin as a crosslinker, we modified this system for use with LiYF4: Tm3+/Yb3+ upconverting nanoparticles, which emit UV light upon NIR excitation. A complete gel-sol transition was observed in 60 minutes upon 980 nm irradiation. No change was observed under similar conditions of a control sample over the same period of time.
- 出版日期2018-6-11
