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Fig. 5 | PhotoniX

Fig. 5

From: MXene sensors based on optical and electrical sensing signals: from biological, chemical, and physical sensing to emerging intelligent and bionic devices

Fig. 5

a Kretchmann configuration-based SPR sensor covered with Ti3C2Tx MXene [81]. b Sensitive detection of diverse sensing analytes by SPR signals enhanced with Ti3C2Tx MXene [81]. c Sensitivity enhancement by different number of Ti3C2Tx layers [81]. Copyright 2018, Elsevier. d Applications of MXene/AuNPs + MWPAg hybrid structure in SPR bio-sensing for detecting CEA [26]. e Resonance angle shift for different concentration of CEA [26]. f Variation of SPR signal when the concentration of CEA changes from 2 × 10–16 to 2 × 10–8 M [26]. Copyright 2019, Elsevier. g Structure diagram of the MXene/Au-based fiber SPR sensor [83]. h Micrograph images of the fiber SPR sensor before and after Ti3C2Tx MXene self-installation [83]. i Enhancement of the resonance wavelength shift for the fiber SPR sensor by coated Ti3C2Tx MXene [83]. Copyright 2020, American Chemical Society

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