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Plasmonic photochem...
Plasmonic photochemistry as a tool to prepare metallic nanopores with controlled diameter for optimized detection of single entities
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- Lanzavecchia, German (author)
- Optoelectronics Group, Istituto Italiano di Tecnologia, Genova, Italy; Dipartimento di Fisica, Univesità di Genova, Genova, Italy
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- Kuttruff, Joel (author)
- Department of Physics, Universität Konstanz, Konstanz, Germany
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- Doricchi, Andrea (author)
- Optoelectronics Group, Istituto Italiano di Tecnologia, Genova, Italy; Dipartimento di Chimica, Univesità di Genova, Genova, Italy
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- Douaki, Ali (author)
- Optoelectronics Group, Istituto Italiano di Tecnologia, Genova, Italy
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- Kumaranchira Ramankutty, Krishnadas (author)
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián, Spain
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- García, Isabel (author)
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Donostia-San Sebastián, Spain
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- Lin, Lyuye (author)
- Optoelectronics Group, Istituto Italiano di Tecnologia, Genova, Italy
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- Viejo Rodríguez, Alba (author)
- Department of Physics and Materials Science, University of Luxembourg, Luxembourg, Luxembourg
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- Wågberg, Thomas, 1971- (author)
- Umeå universitet,Institutionen för fysik
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- Krahne, Roman (author)
- Optoelectronics Group, Istituto Italiano di Tecnologia, Genova, Italy
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- Maccaferri, Nicolò, Dr. 1988- (author)
- Umeå universitet,Institutionen för fysik,Umeå Centre for Microbial Research (UCMR),Department of Physics and Materials Science, University of Luxembourg, Luxembourg, Luxembourg
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- Garoli, Denis (author)
- Optoelectronics Group, Istituto Italiano di Tecnologia, Genova, Italy
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(creator_code:org_t)
- Wiley-VCH Verlagsgesellschaft, 2023
- 2023
- English.
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In: Advanced Optical Materials. - : Wiley-VCH Verlagsgesellschaft. - 2162-7568 .- 2195-1071. ; 11:16
- Related links:
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https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Plasmonic solid-state nanopores with tunable hole diameters can be prepared via a photocatalytic effect resulting from the enhanced electromagnetic (EM) field inside a metallic ring on top of a dielectric nanotube. Under white light illumination, the plasmon-enhanced EM-field induces a site-selective metal nucleation and growth within the ring. This approach is used to prepare Au and bimetallic Au–Ag nano-rings and demonstrate the reduction of the initial inner diameter of the nanopore down to 4 nm. The tunability of the nanopore diameter can be used to enable optimized detection of single entities with different sizes. As a proof-of-concept, single object detection of double stranded DNA (dsDNA) and Au nanoparticles (AuNPs) with a diameter down to 15 nm is performed. Numerical simulations provide insights into the EM-field distribution and confinement, showing that a field intensity enhancement of up to 104 can be achieved inside the nanopores. This localized EM-field can be used to perform enhanced optical measurements and generate local heating, thereby modifying the properties of the nanopore. Such a flexible approach also represents a valuable tool to investigate plasmon-driven photochemical reactions, and it can represent an important step toward the realization of new plasmonic devices.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Keyword
- enhanced spectroscopy
- nanopores
- photocatalytic process
- plasmonics
- single-molecule detection
Publication and Content Type
- ref (subject category)
- art (subject category)
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Lanzavecchia, Ge ...
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Kuttruff, Joel
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Doricchi, Andrea
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Douaki, Ali
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Kumaranchira Ram ...
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García, Isabel
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Lin, Lyuye
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Viejo Rodríguez, ...
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Wågberg, Thomas, ...
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Krahne, Roman
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Maccaferri, Nico ...
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Garoli, Denis
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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Advanced Optical ...
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Umeå University