Modeling the Optical Responses of Noble Metal Nanoparticles Subjected to Physicochemical Transformations in Physiological Environments: Aggregation, Dissolution and Oxidation

Jordi Piella, Neus G. Bastús, Víctor Puntes

    Research output: Contribution to journalArticleResearchpeer-review

    9 Citations (Scopus)

    Abstract

    © 2017 Walter de Gruyter GmbH, Berlin/Boston. Herein, we study how optical properties of colloidal dispersions of noble metal nanoparticles (Au and Ag) are affected by processes such as aggregation and oxidative dissolution. The optical contributions of these processes to the extinction spectra in the UV-vis region are often overlapped, making difficult its interpretation. In this regard, modeling the UV-vis spectra (in particular absorbance curve, peaks position, intensity and full width at half maximum-FWHM) of each process separately offers a powerful tool to identify the transformation of NPs under relevant and complex scenarios, such as in biological media. The proper identification of these transformations is crucial to understand the biological effects of the NPs.
    Original languageEnglish
    Pages (from-to)33-50
    JournalZeitschrift fur Physikalische Chemie
    Volume231
    Issue number1
    DOIs
    Publication statusPublished - 1 Jan 2017

    Keywords

    • Nanoparticles
    • optical properties
    • physicochemical transformations

    Fingerprint Dive into the research topics of 'Modeling the Optical Responses of Noble Metal Nanoparticles Subjected to Physicochemical Transformations in Physiological Environments: Aggregation, Dissolution and Oxidation'. Together they form a unique fingerprint.

    Cite this