Contrast Agents for Photoacoustic Imaging: A Review Focusing on the Wavelength Range.
Biosensors (Basel)
; 12(8)2022 Aug 03.
Article
em En
| MEDLINE
| ID: mdl-36004990
ABSTRACT
Photoacoustic imaging using endogenous chromophores as a contrast has been widely applied in biomedical studies owing to its functional imaging capability at the molecular level. Various exogenous contrast agents have also been investigated for use in contrast-enhanced imaging and functional analyses. This review focuses on contrast agents, particularly in the wavelength range, for use in photoacoustic imaging. The basic principles of photoacoustic imaging regarding light absorption and acoustic release are introduced, and the optical characteristics of tissues are summarized according to the wavelength region. Various types of contrast agents, including organic dyes, semiconducting polymeric nanoparticles, gold nanoparticles, and other inorganic nanoparticles, are explored in terms of their light absorption range in the near-infrared region. An overview of the contrast-enhancing capacity and other functional characteristics of each agent is provided to help researchers gain insights into the development of contrast agents in photoacoustic imaging.
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Base de dados:
MEDLINE
Assunto principal:
Nanopartículas
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Nanopartículas Metálicas
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Técnicas Fotoacústicas
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article