Mass Spectrometry & Purification Techniques
Open Access
ISSN: 2469-9861
+44 1300 500008
ISSN: 2469-9861
+44 1300 500008
Department of Chemistry, Gauhati University, Assam, India
Research
Cetyltrimethyl Ammonium Bromide Encapsulated Lawsone Modified Platinum Electrode as a Voltammetric and Electrochemical Impedance Spectroscopy Sensor for Cholesterol
Author(s): Rimki Bhattacharjya*, Priyakshi Bordoloi and Diganta Kumar Das
Lawsone (2-hydroxy-1,4-naphthoquinone) is the main active chemical constituent of Henna (Lawsoniainermis). Lawsone encapsulated in cationic surfactant cetyltrimethyl ammonium bromide modified pre-cleaned platinum electrode, coated with AgNO3, showed a decrease in cathodic and anodic currents in cyclic voltammetry and the peak current in square wave voltammetry. Electrochemical Impedance Spectroscopy of the modified electrode showed a linear increase in charge transfer resistance with cholesterol. The fluorescence intensity of Lawsone in ethanol-water was found to quench in presence of AgNO3 which then gradually increased on addition of cholesterol. The electrochemical behaviour of the modified electrode and the fluorescence behaviour of Lawsone in presence of AgNO3 towards cholesterol was found to be similar in artificial cerebrospinal fluid, confirmin.. View More»
DOI:
10.35248/2469-9861.22.8.149