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Selective colorimetric sensing of histidine in aqueous media via Ag nanotriangles in the presence of HgCl2.
Namazi Koochak, Niloofar; Fatmehsari Haghshenas, Davoud; Firoozi, Sadegh; Hassanzadeh, Mohammadreza.
Afiliación
  • Namazi Koochak N; Department of Materials and Metallurgical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
  • Fatmehsari Haghshenas D; Department of Materials and Metallurgical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran. Electronic address: dahafa@aut.ac.ir.
  • Firoozi S; Department of Materials and Metallurgical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
  • Hassanzadeh M; Department of Materials and Metallurgical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
Spectrochim Acta A Mol Biomol Spectrosc ; 325: 125072, 2024 Aug 31.
Article en En | MEDLINE | ID: mdl-39232307
ABSTRACT
Silver nanotriangles (AgNTs) were successfully synthesized as a colorimetric probe for selective and sensitive histidine detection in aqueous media within a 15-100 µM range and a detection limit of 330 nM using UV-Vis spectroscopy. The interaction of HgCl2 with AgNTs would lead to the formation of disk-shaped Ag/Hg amalgam as observed from the transmission electron images and X-ray diffraction patterns. Histidine prevents these structural and morphological changes and accordingly, the detection approach was developed based on the correlation between the histidine concentration and the in-plane dipole plasmon resonance (DPR) intensity.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Spectrochim Acta A Mol Biomol Spectrosc / Spectrochim. acta, Part A, Mol. biomol. spectrosc. (Print) / Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (Print) Asunto de la revista: BIOLOGIA MOLECULAR Año: 2024 Tipo del documento: Article País de afiliación: Irán
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Spectrochim Acta A Mol Biomol Spectrosc / Spectrochim. acta, Part A, Mol. biomol. spectrosc. (Print) / Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (Print) Asunto de la revista: BIOLOGIA MOLECULAR Año: 2024 Tipo del documento: Article País de afiliación: Irán