Optical and mechanical properties of streptavidin-conjugated gold nanospheres through data mining techniques.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
01 10 2020
01 10 2020
Historique:
received:
17
01
2020
accepted:
31
08
2020
entrez:
2
10
2020
pubmed:
3
10
2020
medline:
3
10
2020
Statut:
epublish
Résumé
The thermo-mechanical properties of streptavidin-conjugated gold nanospheres, adhered to a surface via complex molecular chains, are investigated by two-color infrared asynchronous optical sampling pump-probe spectroscopy. Nanospheres with different surface densities have been deposited and exposed to a plasma treatment to modify their polymer binding chains. The aim is to monitor their optical response in complex chemical environments that may be experienced in, e.g., photothermal therapy or drug delivery applications. By applying unsupervised learning techniques to the spectroscopic traces, we identify their thermo-mechanical response variation. This variation discriminates nanospheres in different chemical environments or different surface densities. Such discrimination is not evident based on a standard analysis of the spectroscopic traces. This kind of analysis is important, given the widespread application of conjugated gold nanospheres in medicine and biology.
Identifiants
pubmed: 33004805
doi: 10.1038/s41598-020-72534-1
pii: 10.1038/s41598-020-72534-1
pmc: PMC7530730
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
16230Références
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