期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 58, 期 1, 页码 134-138出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201808846
关键词
electrochemical biosensor; layered materials; phenol biosensor; phosphorene; pnictogens
资金
- EFRR [CZ.02.1.01/0.0/0.0/15_003/0000444]
- Czech Science Foundation (GACR) [17-11456S]
- Neuron Foundation
Two-dimensional materials have allowed for great advances in the biosensors field and to obtain sophisticated, smart, and miniaturized devices. In this work, we optimized a highly sensitive and selective phenol biosensor using 2D pnictogens (phosphorene, arsenene, antimonene, and bismuthene) as sensing platforms. Exfoliated pnictogen were obtained by the shear-force method, undergoing delamination and downsizing to thin nanosheets. Interestingly, compared with the other tested elements, antimonene exhibited the highest degree of exfoliation and the lowest oxidation-to-bulk ratio, to which we attribute its enhanced performance in the phenol biosensor system reported here. The proposed design represents the first biosensor approach developed using exfoliated pnictogens beyond phosphorene.
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