Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2011, Vol. 22 ›› Issue (1): 30-34 doi: 10.13538/j.1001-8042/nst.22.30-34

• RADIOCHEMISTRY, RADIOPHARMACEUTICALS AND NUCLEAR MEDICIN • Previous Articles     Next Articles

Irreversible transformation of the porphyrin supramolecular structures under a water vapor environment

YE Ming1,2 ZHANG Yi1,*   

  1. 1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China 2Graduate University of Chinese Academy of Sciences, Beijing 100049, China
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YE Ming, ZHANG Yi. Irreversible transformation of the porphyrin supramolecular structures under a water vapor environment.Nuclear Science and Techniques, 2011, 22(1): 30-34     doi: 10.13538/j.1001-8042/nst.22.30-34

Abstract:

Supramolecular structures formed by H4TPPS4 2– have been widely used for different applications. In this paper, the stability of H4TPPS4 2− nanorods on mica substrate is investigated by atom force microscopy (AFM) observation. An irreversible transformation of H4TPPS4 2– from nanorods (3.8±0.4 nm in height) to a lower film structure (1.9±0.4 nm in height) was found with the samples incubated at various relative humidities (RH). The transformation rate depends strongly on the RH and environment temperature.

Key words: Supramolecular structures, H4TPPS4 2?, Stability, AFM