Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2021 Dec 26;13(1):24. doi: 10.3390/mi13010024

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Schematics of various SAW mode biosensors. (a) SH-SAW biosensor with an Au IDT and sensing layer in the delay line configuration on bulk LiTaO₃ [214]. Reproduced with permission from Junwang Ji et al., Sensors and Actuators B: Chemical; published by Elsevier, 2019. (b) FPW SAW biosensor with ZnO thin film piezoelectric layer. Functionalization of the sensor for biosensing is performed at the backside cavity. Reproduced with permission from J.-W. Lan et al. [261], Sensors; published by MDPI, 2016 (open access). (c) Love wave biosensor on a quartz substrate with SiO₂ guiding layer and Au sensing layer on top of the guide in between the IDT [262]. Reproduced with permission from F. Di Pietrantonio et al., Sensors and Actuators B: Chemical; published by Elsevier, 2016. (d) SAW resonator for biosensing on LiTaO₃ with an Au sensing layer in between the IDT and reflectors [263]. Reproduced with permission from Kai Chang et al., Biosensors and Bioelectronics; published by Elsevier, 2014. (e) SAW resonator biosensor on a sputter ZnO thin film [211]. Reproduced with permission from Jingting Luo et al., Biosensors and Bioelectronics; published by Elsevier, 2013.