Fabrication of highly sensitive Bisphenol A electrochemical sensor amplified with chemically modified multiwall carbon nanotubes and beta-cyclodextrin

•Developed high sensitive, simple, fast, and cheap electrochemical sensor for BPA detection.•One step steglich esterification synthesises chemically modified MWCNTs- βCD providing effective attachment with fast electron transfer.•Combined effect of hydrophilic behavior of βCD and large surface area of MWCNTs offered enhanced host-guest interaction with BPA.