Single-Molecule Detection of Airborne Singlet Oxygen

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• 作者：Kazuya Naito ; Takashi Tachikawa ; Shi-Cong Cui ; Akira Sugimoto ; Mamoru Fujitsuka ; Tetsuro Majima
• 刊名：Journal of the American Chemical Society
• 出版年：2006
• 出版时间：December 27, 2006
• 年：2006
• 卷：128
• 期：51
• 页码：16430 - 16431
• 全文大小：80K
• 年卷期：v.128,no.51(December 27, 2006)
• ISSN：1520-5126

文摘

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 × 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.