空气中单线态氧的单分子检测。
Single-molecule detection of airborne singlet oxygen.
作者信息
Naito Kazuya, Tachikawa Takashi, Cui Shi-Cong, Sugimoto Akira, Fujitsuka Mamoru, Majima Tetsuro
机构信息
The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan.
出版信息
J Am Chem Soc. 2006 Dec 27;128(51):16430-1. doi: 10.1021/ja066739b.
Airborne singlet oxygen (1O2) molecules, which are generated during the TiO2 photocatalytic reactions and diffused from the surface into air, were detected at the opposite surface using terrylenediimide (TDI) molecules at the single-molecule level. The novel 1O2 nanosensor, which has a detectable number of about 1000 1O2 molecules in 70 x 70 square micrometers, can easily detect the single 1O2 molecule at a distance of over 1000 micrometers from the place of its creation in ambient air.
在二氧化钛光催化反应过程中产生并从表面扩散到空气中的空气中单线态氧（¹O₂）分子，在相对表面上通过单分子水平的萘二甲酰亚胺（TDI）分子进行了检测。这种新型的¹O₂纳米传感器在70×70平方微米范围内约有1000个可检测的¹O₂分子，能够在距其在环境空气中产生位置超过1000微米的距离处轻松检测到单个¹O₂分子。
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