Electrochemical Detection of Anti-breast-cancer Agents in Human Serum by Cytochrome P450-coated Carbon Nanotubes

Overview

Journal Sensors (Basel)

Publisher MDPI

Specialty Biotechnology

Date 2012 Jul 11

PMID 22778656

Citations 15

Authors

Camilla Baj-Rossi

Giovanni De Micheli

Sandro Carrara

Affiliations

Soon will be listed here.

Abstract

We report on the electrochemical detection of anti-cancer drugs in human serum with sensitivity values in the range of 8-925 nA/μM. Multi-walled carbon nanotubes were functionalized with three different cytochrome P450 isoforms (CYP1A2, CYP2B6, and CYP3A4). A model used to effectively describe the cytochrome P450 deposition onto carbon nanotubes was confirmed by Monte Carlo simulations. Voltammetric measurements were performed in phosphate buffer saline (PBS) as well as in human serum, giving well-defined current responses upon addition of increasing concentrations of anti-cancer drugs. The results assert the capability to measure concentration of drugs in the pharmacological ranges in human serum. Another important result is the possibility to detect pairs of drugs present in the same sample, which is highly required in case of therapies with high side-effects risk and in anti-cancer pharmacological treatments based on mixtures of different drugs. Our technology holds potentials for inexpensive multi-panel drug-monitoring in personalized therapy.

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