A photo-switchable and thermal-enhanced fluorescent hydrogel prepared from <i>N</i>-isopropylacrylamide with water-soluble spiropyran derivative
Xueqing Zou
Xiaozhen Xiao
Shixiong Zhang
Jiajun Zhong
Yulin Hou
Liqiong Liao
10.6084/m9.figshare.6340679.v2
https://tandf.figshare.com/articles/journal_contribution/A_photo-switchable_and_thermal-enhanced_fluorescent_hydrogel_prepared_from_i_N_i_-isopropylacrylamide_with_water-soluble_spiropyran_derivative/6340679
<p>Herein, a photo-switchable and thermal-enhanced fluorescent hydrogel has been fabricated from <i>N</i>-isopropylacrylamide (NIPAAm) with a mixture of water-soluble acryloyl-α-cyclodextrin/acryloyl-α-cyclodextrin-spiropyran (acryloyl-α-CD/ acryloyl-α-CD-SP) as cross-linkers. The physical properties, photochromic properties, and fluorescent behavior of the hydrogel were characterized. The fluorescence emission of the hydrogel can be reversibly switched ‘on/off’ by UV/visible light irradiation, and meanwhile the fluorescence intensity can be enhanced by increasing the temperature above the volume phase transition temperature (VPTT) of the hydrogel. The hydrogel also shows spatiotemporal fluorescent behavior, excellent cytocompatibility, and fatigue resistance in photochromic and photo-switchable fluorescent behaviors.</p>
2018-06-01 11:47:23
Hydrogel
fluorescent
photo-switchable
thermal-enhanced
spiropyran