A rewritable optical storage medium of silk proteins using near-field nano-optics.
Journal
Nature nanotechnology
ISSN: 1748-3395
Titre abrégé: Nat Nanotechnol
Pays: England
ID NLM: 101283273
Informations de publication
Date de publication:
11 2020
11 2020
Historique:
received:
22
12
2019
accepted:
09
07
2020
pubmed:
12
8
2020
medline:
11
3
2021
entrez:
12
8
2020
Statut:
ppublish
Résumé
Nanoscale lithography and information storage in biocompatible materials offer possibilities for applications such as bioelectronics and degradable electronics for which traditional semiconductor fabrication techniques cannot be used. Silk fibroin, a natural protein renowned for its strength and biocompatibility, has been widely studied in this context. Here, we present the use of silk film as a biofunctional medium for nanolithography and data storage. Using tip-enhanced near-field infrared nanolithography, we demonstrate versatile manipulation and characterize the topography and conformation of the silk in situ. In particular, we fabricate greyscale and dual-tone nanopatterns with full-width at half-maximum resolutions of ~35 nm, creating an erasable 'silk drive' that digital data can be written to or read from. As an optical storage medium, the silk drive can store digital and biological information with a capacity of ~64 GB inch
Identifiants
pubmed: 32778805
doi: 10.1038/s41565-020-0755-9
pii: 10.1038/s41565-020-0755-9
doi:
Substances chimiques
Biocompatible Materials
0
Fibroins
9007-76-5
Banques de données
figshare
['10.6084/m9.figshare.12466034']
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
941-947Références
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