Analytical determination of gold ions based on ranelate induced nanoparticle formation

Author(s)

Mattioni, Joao Victor ; Franciscato, Douglas Santana ; Sihn, Luca Michael ; Toma, Henrique Eisi

• Document type: Journal article
• Source: ANALYTICAL METHODS; v. 14, n. 17, p. 7-pg., 2022-03-25.

Abstract

A ranelate ion, an old antiosteoporotic drug, readily reacts with gold(iii) ions generating stable gold nanoparticles (AuNP@Ran). The reaction proceeds rapidly under green conditions and is specific for gold ions at room temperature. Their characteristic color associated with the plasmonic resonance effects allows its use in colorimetric/spectrophotometric analysis, as well as in spot test assays. In addition to the color changes, the gold nanoparticles exhibit surface enhanced Raman scattering (SERS), providing another interesting route for the analytical detection of gold ions. Because of the great simplicity, the ranelate method can be very convenient for monitoring gold ions, especially in metal extraction and hydrometallurgical processes. (AU)

• FAPESP's process: 18/21489-1 - Supramolecular nanotechnology: design, materials and devices
• Grantee: Henrique Eisi Toma
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 19/14771-5 - Development of superparamagnetic nanoparticles functionalized with complexing agents for the capture and exploitation of strategic metals
• Grantee: João Victor Mattioni
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• FAPESP's process: 19/19218-2 - Spectroelectrochemical SERS sensors based on selective plasmonic Raman probes associated with superparamagnetic nanoparticles
• Grantee: Douglas Santana Franciscato
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 18/25974-1 - Photochemestry, photophyisics and photoeletrochemestry of the ranelate ion
• Grantee: Luca Michael Sihn
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)