期刊
CHEMISTRY LETTERS
卷 47, 期 9, 页码 1191-1193出版社
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.180488
关键词
ESR; HPMC; Singlet oxygen
资金
- Japan Science and Technology Agency [MP27115663427]
- Ministry of Education, Culture, Sports, Science and Technology of Japan [17K06823]
- Grants-in-Aid for Scientific Research [17K06823] Funding Source: KAKEN
2,2,6,6-Tetramethyl-4-piperidinol (TEMP) is a spin-trap agent for electron spin resonance (ESR) that is usually employed in solution. However, in this study, TEMP is mixed with hydroxypropyl methylcellulose (HPMC) to form a film for the detection of singlet oxygen in vacuo. The ESR intensity achieved is 3.3 times higher than that for a previously reported polyvinyl alcohol film. Furthermore, the diffusion of singlet oxygen into HPMC is shown to follow Fick's law, having a diffusion coefficient of approximate to 2.5 x 10(-8) cm(2) s(-1).
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