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Couplants in Acoustic Biosensing Systems

journal contribution
posted on 20.07.2022, 18:49 authored by Rayyan Manwar, Loїc Saint-Martin, Kamran AvanakiKamran Avanaki
Acoustic biosensors are widely used in physical, chemical, and biosensing applications. One of the major concerns in acoustic biosensing is the delicacy of the medium through which acoustic waves propagate and reach acoustic sensors. Even a small airgap diminishes acoustic signal strengths due to high acoustic impedance mismatch. Therefore, the presence of a coupling medium to create a pathway for an efficient propagation of acoustic waves is essential. Here, we have reviewed the chemical, physical, and acoustic characteristics of various coupling material (liquid, gel-based, semi-dry, and dry) and present a guide to determine a suitable application-specific coupling medium.

Funding

Transfontanelle photoacoustic imaging to study pathophysiology of neonatal brain injury | Funder: National Institutes of Health (National Institute of Biomedical Imaging and Bioengineering) | Grant ID: R01EB027769

3D neonatal Photoacoustic Tomography (3D-nPAT) to detect Hypoxic-Ischemic | Funder: National Institutes of Health (National Institute of Biomedical Imaging and Bioengineering) | Grant ID: R01EB028661

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Citation

Manwar, R., Saint-Martin, L.Avanaki, K. (2022). Couplants in Acoustic Biosensing Systems. Chemosensors, 10(5), 181-. https://doi.org/10.3390/chemosensors10050181

Publisher

MDPI AG

Language

en

issn

2227-9040

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