Non-radiative energy transfer in N-isopropylacrylamide gel
β Scribed by Yoshinori Kajima; Yasuhiko Yagi; Hiroshi Inomata; Shozaburo Saito
- Book ID
- 103985261
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 298 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0966-7822
No coin nor oath required. For personal study only.
β¦ Synopsis
Non-radiative energy transfer from donor to acceptor probes attached to the network chains of an N-isopropylacrylamide (N1PA) gel was investigated in water at various temperatures through fluorescence spectrum measurements. Naphthalene or biphenyl was used as a donor, and pyrene as an acceptor. Two types of doubly labeled NIPA gels (NIPA/2-vinylnaphthalene/pyrenylacrylamide and NIPA/4-vinylbiphenyl/pyrenylacrylamide) were prepared by copolymerization. The non-radiative transfer was observed for both gels. The ratio of emission intensity from donor to that from acceptor was strongly dependent on temperature, which indicates that the non-radiative energy transfer in doubly labeled NIPA gels could be controlled by means of the volume change with temperature.
π SIMILAR VOLUMES
We examine the time decay of various Tm +3 sites in Cr, Tm, Ho-doped YAG. Certain sites can be identified as being paired with Cr + 3, while others are isolated. A correspondence between the spectral and temporal behavior of each site has been established.