Hydrogel-based holographic sensors and biosensors: past, present, and future.
Anal Bioanal Chem
; 414(2): 993-1014, 2022 Jan.
Article
em En
| MEDLINE
| ID: mdl-34757475
Hydrogel-based holographic sensors consist of a holographic pattern in a responsive hydrogel that diffracts light at different wavelengths depending on the dimensions and refractive index changes in the material. The material composition of hydrogels can be designed to be specifically responsive to different stimuli, and thus the diffraction pattern can correlate with the amount of analyte. According to this general principle, different approaches have been implemented to achieve label-free optical sensors and biosensors, with advantages such as easy fabrication or naked-eye detection. A review on the different approaches, sensing materials, measurement principles, and detection setups, and future perspectives is offered.
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Base de dados:
MEDLINE
Assunto principal:
Holografia
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Técnicas Biossensoriais
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Hidrogéis
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article