Pnictogen-Based Enzymatic Phenol Biosensors: Phosphorene, Arsenene, Antimonene, and Bismuthene

Carmen C. Mayorga-Martinez, Rui Gusmão, Zdeněk Sofer, Martin Pumera

Research output: Contribution to journalArticle

29 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)134-138
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number1
Publication statusPublished - 2019 Jan 2

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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