標題: | Novel Water-Soluble Cyclodextrin-Based Conjugated Polymer for Selective Host-Guest Interactions of Cationic Surfactant CTAB and Reverse FRET with Rhodamine B Tagged Adamantyl Guest |
作者: | Dwivedi, Atul Kumar Singh, Ravinder Singh, Ashutosh Wei, Kung-Hwa Wu, Chu-Ya Lyu, Ping-Chiang Lin, Hong-Cheu 材料科學與工程學系 Department of Materials Science and Engineering |
公開日期: | 9-八月-2016 |
摘要: | A new water-soluble pi-conjugated main-chain polymer P1 bearing a beta-cyclodextrin (beta-CD) pendant was designed and synthesized. The aggregation and disaggregation of P1 generated faded yellow-greenish and bright-yellow emissions, respectively. The inclusion complexation capability of P1 through beta-CD pendant with a cationic surfactant cetyltrimethylammonium bromide (CTAB) guest and associative interactions of P1 with Fe3+ through triazole spacers resulted in significantly enhanced and completely diminished emission profiles of P1 in pure water, respectively. Interestingly, ADRhB as another rhodamine B (RhB) tagged adamantyl guest was transformed into ADRhB(0), i.e., the open form of ADRhB, to generate RhB emission in the presence of Fe3+ ion selectively for the pendent host beta-CD of PI, and the further interaction of.ADRhB(0)/Fe3+ with P1 prevailed a completely quenched RhB emission via the inclusion complexation of adamantyl terminal of ADRhB (0) in beta-CD. Moreover, stronger interactions of CTAB with beta-CD further generated RhB emission of ADRhB(0) even in the presence of acceptor Pl. Finally, a novel beta-CD bearing water-soluble P1 with selective and strong interactions of CTAB toward disaggregation events in pure water, and further electrostatic repulsion and utilization of RhB via RhB-tagged adamantyl guest ADRhB(0) as a donor revealed the reverse fluorescence resonance energy transfer (FRET) process of P1. |
URI: | http://dx.doi.org/10.1021/acs.macromol.6b00789 http://hdl.handle.net/11536/134094 |
ISSN: | 0024-9297 |
DOI: | 10.1021/acs.macromol.6b00789 |
期刊: | MACROMOLECULES |
Volume: | 49 |
Issue: | 15 |
起始頁: | 5587 |
結束頁: | 5598 |
顯示於類別: | 期刊論文 |