Article (Scientific journals)
Bio-assisted tailored synthesis of plasmonic silver nanorings and site-selective deposition on graphene arrays
Giovannini, Giorgia; Ardini, Matteo; Maccaferri, Nicolò et al.
2020In Advanced Optical Materials, 8 (4), p. 1901583
Peer Reviewed verified by ORBi
 

Files


Full Text
Giovannini_et_al-2019-Advanced_Optical_Materials.pdf
Publisher postprint (1.92 MB)
Download

All documents in ORBilu are protected by a user license.

Send to



Details



Abstract :
[en] The spontaneous interaction between noble metals and biological scaffolds enables simple and cost‐effective synthesis of nanomaterials with unique features. Here, plasmonic silver nanorings are synthesized on a ring‐like protein, i.e., a peroxiredoxin (PRX), and used to assemble large arrays of functional nanostructures. The PRX drives the seeding growth of metal silver under wet reducing conditions, yielding nanorings with outer and inner diameters down to 28 and 3 nm, respectively. The obtained hybrid nanostructures are selectively deposited onto a solid‐state 2D membrane made of graphene in order to prepare plasmonic nanopores. In particular, the interaction between the graphene and the PRX allows for the simple preparation of ordered arrays of plasmonic nanorings on a 2D‐material membrane. This fabrication process can be finalized by drilling a nanometer scale pore in the middle of the ring. Fluorescence spectroscopic measurements in combination with numerical simulations demonstrate the plasmonic effects induced in the metallic nanoring cavity. The prepared nanopores represent one of the first examples of hybrid plasmonic nanopore structures integrated on a 2D‐material membrane. The diameter of the nanopore and the atomically thick substrate make this proof‐of‐concept approach particularly interesting for nanopore‐based technologies and applications such as next‐generation sequencing and single‐molecule detection.
Disciplines :
Physics
Author, co-author :
Giovannini, Giorgia;  Istituto Italiano di Tecnologia
Ardini, Matteo;  Università degli Studi dell'Aquila - UNIVAQ
Maccaferri, Nicolò ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit ; Istituto Italiano di Tecnologia
Zambrana-Puyalto, Xavier;  Istituto Italiano di Tecnologia
Panella, Gloria;  Università degli Studi dell'Aquila - UNIVAQ
Angelucci, Francesco;  Università degli Studi dell'Aquila - UNIVAQ
Ippoliti, Rodolfo;  Università degli Studi dell'Aquila - UNIVAQ
Garoli, Denis;  Istituto Italiano di Tecnologia
De Angelis, Francesco;  Istituto Italiano di Tecnologia
External co-authors :
yes
Language :
English
Title :
Bio-assisted tailored synthesis of plasmonic silver nanorings and site-selective deposition on graphene arrays
Publication date :
2020
Journal title :
Advanced Optical Materials
ISSN :
2195-1071
Publisher :
John Wiley & Sons, Hoboken, United States - New Jersey
Volume :
8
Issue :
4
Pages :
1901583
Peer reviewed :
Peer Reviewed verified by ORBi
Focus Area :
Physics and Materials Science
European Projects :
H2020 - 687089 - PROSEQO - PROtein SEQuencing using Optical single molecule real-time detection
Funders :
CE - Commission Européenne [BE]
Available on ORBilu :
since 26 November 2019

Statistics


Number of views
140 (8 by Unilu)
Number of downloads
82 (3 by Unilu)

Scopus citations®
 
25
Scopus citations®
without self-citations
12
OpenCitations
 
11
WoS citations
 
19

Bibliography


Similar publications



Contact ORBilu