title: Modified interdigitated arrays by novel poly(1,8-diaminonaphthalene)/carbon nanotubes composite for selective detection of mercury(II).
abstract: This study describes a novel type of interdigitated arrays (IDA), microfabricated by electropolymerizing structured Poly(1,8-diaminonaphthalene)/functionalized multi-walled carbon nanotubes (PDAN/CNT) thin film onto a silicon chip for square wave voltammetry (SWV) multi-element heavy metal ion detection. The structure of PDAN/CNT was characterized by Raman, FE-SEM and AFM techniques. Analysed experiments reveal that the uptake of Hg(2+) by PDAN/CNT is quite specific and it can be used advantageously for electrochemical sensing of Hg(2+) thanks to original feature of (Hg(2+)/Hg(2)(2+)) redox potential with the respect to that of PDAN/CNT. As-developed IDA type electrode can extend its utility in other sensing applications.
authors.affiliation: Institute of Tropical Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Viet Nam.
authors.forename: Dzung Tuan
authors.initials: DT
authors.lastname: Nguyen
authors.forename: Lam Dai
authors.initials: LD
authors.lastname: Tran
authors.forename: Huy Le
authors.initials: HL
authors.lastname: Nguyen
authors.forename: Binh Hai
authors.initials: BH
authors.lastname: Nguyen
authors.forename: Nguyen Van
authors.initials: NV
authors.lastname: Hieu