| Full text | |
| Author(s): |
Vieira, Nirton C. S.
[1]
;
Avansi, Jr., Waldir
[2]
;
Figueiredo, Alessandra
[1]
;
Mastelaro, Valmor R.
[3]
;
Zucolotto, Valtencir
[1]
Total Authors: 5
|
| Affiliation: | [1] Univ Sao Paulo, Phys Inst Sao Carlos, Nanomed & Nanotoxicol Grp, CP 369, BR-13560970 Sao Carlos, SP - Brazil
[2] Univ Fed Sao Carlos, Dept Phys, UFSCar, BR-13565905 Sao Carlos, SP - Brazil
[3] Univ Sao Paulo, Phys Inst Sao Carlos, Crystal Growth & Ceram Mat, CP 369, BR-13560970 Sao Carlos, SP - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | SENSORS AND ACTUATORS B-CHEMICAL; v. 229, p. 461-465, JUN 28 2016. |
| Web of Science Citations: | 3 |
| Abstract | |
Vanadium pentoxide nanorods (V2O5-nanorods) and poly(allylamine hydrochloride) (PAH) were assembled onto gold-coated substrates via spin-assisted assembly technique and used as a chemically sensitive electrodes. PAH/V2O5-nanorods detected H+ ions (pH) with sensitivity between 52-61 mV/pH (close to Nernstian theoretical value). As a proof-of-concept, a urea biosensor has been developed, upon immobilization of urease enzyme on PAH/V2O5-nanorods electrodes. The biosensor could detect urea in a 0.05-5 mM dynamic range. The spin-assisted assembly technique enables the combination of different materials in a simple way and offers advantages for the construction of functional electrodes. (c) 2016 Elsevier B.V. All rights reserved. (AU) | |
| FAPESP's process: | 11/20110-0 - Field effect-based immunosensors to detect myocardial infarction markers |
| Grantee: | Nirton Cristi Silva Vieira |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |