磷烯
生物传感器
氮族元素
材料科学
剥脱关节
纳米技术
光电子学
石墨烯
物理
凝聚态物理
超导电性
作者
Carmen C. Mayorga‐Martinez,Rui Gusmão,Zdeněk Sofer,Martin Pumera
标识
DOI:10.1002/anie.201808846
摘要
Abstract 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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