عنوان
Light-induced switching of azo-imidazoles on gold nanoparticles
نویسنده (گان)
Pasandideh nadamani,Meysam;Mahmoodi,Nosratollah;Mamaghani,Manouchehr ;Zanjanchi,Mohammad ali
چکیده مقاله
In the past decade, a large number of photochromic compounds with different photoresponsive units have been synthesized and their properties have been investigated [1,2]. Recently photochromic compounds have attracted considerable attention due to their extensive applications in display and anti-counterfeiting systems, optical storage and memory devices, and optical molecular switches. The self-assembly of functional photochromic molecules as ligands on the surface of metal nanoparticles is a promising strategy for the fabrication of nanoscale devices with potential applications in clinical diagnostics, optical storage and photo-switchable surface wettability [3]. In the present study, gold nanoparticles (AuNPs) were immobilized with sulfur-modified photochromic azo-imidazole derivatives and their photochromic performance was studied. In this class of photochromic compounds, a reversible switching reaction occurred between the trans-enol photoisomer into cis-keto and/or quinone-hydrazone photoisomers and vice versa under UV irradiation.

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