Vinita, Tiwari M, Agnihotri N, Singh M, Singh AK, Prakash R. Nanonetwork of Coordination Polymer AHMT-Ag for the Effective and Broad Spectrum Detection of 6-Mercaptopurine in Urine and Blood Serum.
ACS OMEGA 2019;
4:16733-16742. [PMID:
31646218 PMCID:
PMC6796891 DOI:
10.1021/acsomega.9b01122]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 09/11/2019] [Indexed: 10/22/2023]
Abstract
Nanocrystalline coordination polymers (NCCPs) have been considered as an incredible electrochemical sensor for the effective detection of biologically dynamic drug 6-mercaptopurine (6-MP). In the present report, a significantly stable infinite arrayed coordination polymeric network was self-assembled via metal with efficient organic tecton 4-amino-3-hydrazino-5-mercapto-1,2,4,-triazole (AHMT) in which silver(I) ions are coordinated by AHMT via hydrazino and exocyclic thiol linkage to form AHMT-Ag NCCP. An efficient and highly sensitive detection of 6-MP is attained owing to eminent electron channeling via polymeric nanocrystallite pores. An effective charge transfer leads to an interface of the AHMT-Ag nano-pores and electrolyte anchored electrode via π-π electron coupling and hydrophobic interaction. The voltammogram exposes acute redox behavior of 6-MP and discloses an impeccable illustration for the AHMT-Ag facilitated oxidation of 6-MP. This unique signature was applied in voltammetric detection of 6-MP in blood serum, human urine, and pharmaceutical formulation (tablet) by a considerable high sensitivity of 0.074, 0.058, and 0.036 μA/μM and a detection limit of 87, 97, and 37 nM, respectively. Thus, the prepared AHMT-Ag NCCP can provide a valuable platform for fabrication of highly sensitive electrochemical devices to assay biologically essential drug molecules.
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