Publication:
Plasmon-coupled photocapacitor neuromodulators

dc.contributor.coauthorÜlgüt, Burak
dc.contributor.coauthorÇetin, Arif E.
dc.contributor.departmentDepartment of Electrical and Electronics Engineering
dc.contributor.departmentDepartment of Molecular Biology and Genetics
dc.contributor.departmentDepartment of Chemical and Biological Engineering
dc.contributor.departmentGraduate School of Sciences and Engineering
dc.contributor.kuauthorDikbaş, Uğur Meriç
dc.contributor.kuauthorDoğru-Yüksel, Itır Bakış
dc.contributor.kuauthorJalali, Houman Bahmani
dc.contributor.kuauthorKaratüm, Onuralp
dc.contributor.kuauthorKavaklı, İbrahim Halil
dc.contributor.kuauthorMelikov, Rustamzhon
dc.contributor.kuauthorNizamoğlu, Sedat
dc.contributor.kuauthorSadeghi, Sadra
dc.contributor.kuauthorSrivastava, Shashi Bhushan
dc.contributor.schoolcollegeinstituteCollege of Engineering
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.contributor.schoolcollegeinstituteGRADUATE SCHOOL OF SCIENCES AND ENGINEERING
dc.date.accessioned2024-11-09T13:48:44Z
dc.date.issued2020
dc.description.abstractEfficient transduction of optical energy to bioelectrical stimuli is an important goal for effective communication with biological systems. For that, plasmonics has a significant potential via boosting the light-matter interactions. However, plasmonics has been primarily used for heat-induced cell stimulation due to membrane capacitance change (i.e., optocapacitance). Instead, here, we demonstrate that plasmonic coupling to photocapacitor biointerfaces improves safe and efficacious neuromodulating displacement charges for an average of 185% in the entire visible spectrum while maintaining the faradic currents below 1%. Hot-electron injection dominantly leads the enhancement of displacement current in the blue spectral window, and the nanoantenna effect is mainly responsible for the improvement in the red spectral region. The plasmonic photocapacitor facilitates wireless modulation of single cells at three orders of magnitude below the maximum retinal intensity levels, corresponding to one of the most sensitive optoelectronic neural interfaces. This study introduces a new way of using plasmonics for safe and effective photostimulation of neurons and paves the way toward ultrasensitive plasmon-assisted neurostimulation devices.
dc.description.fulltextYES
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.indexedbyPubMed
dc.description.issue32
dc.description.openaccessYES
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuEU
dc.description.sponsorshipEuropean Research Council (ERC)
dc.description.sponsorshipEuropean Union (EU)
dc.description.sponsorshipHorizon 2020
dc.description.sponsorshipTurkish Academy of Sciences
dc.description.sponsorshipScience Academy of Turkey
dc.description.versionAuthor's final manuscript
dc.description.volume12
dc.identifier.doi10.1021/acsami.0c09455
dc.identifier.eissn1944-8252
dc.identifier.embargoNO
dc.identifier.filenameinventorynoIR02901
dc.identifier.issn1944-8244
dc.identifier.quartileQ1
dc.identifier.scopus2-s2.0-85089707470
dc.identifier.urihttps://hdl.handle.net/20.500.14288/3835
dc.identifier.wos562182900015
dc.keywordsBiointerface
dc.keywordsCharge transfer
dc.keywordsNanoislands
dc.keywordsOrganic polymers
dc.keywordsPhotocapacitor
dc.keywordsPhotostimulation
dc.keywordsPlasmonics
dc.language.isoeng
dc.publisherAmerican Chemical Society (ACS)
dc.relation.grantno639846
dc.relation.ispartofACS Applied Materials _ Interfaces
dc.relation.urihttp://cdm21054.contentdm.oclc.org/cdm/ref/collection/IR/id/9548
dc.subjectNanoscience and nanotechnology
dc.subjectMaterials science, multidisciplinary
dc.titlePlasmon-coupled photocapacitor neuromodulators
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorMelikov, Rustamzhon
local.contributor.kuauthorSrivastava, Shashi Bhushan
local.contributor.kuauthorKaratüm, Onuralp
local.contributor.kuauthorDoğru-Yüksel, Itır Bakış
local.contributor.kuauthorJalali, Houman Bahmani
local.contributor.kuauthorSadeghi, Sadra
local.contributor.kuauthorDikbaş, Uğur Meriç
local.contributor.kuauthorKavaklı, İbrahim Halil
local.contributor.kuauthorNizamoğlu, Sedat
local.publication.orgunit1GRADUATE SCHOOL OF SCIENCES AND ENGINEERING
local.publication.orgunit1College of Sciences
local.publication.orgunit1College of Engineering
local.publication.orgunit2Department of Molecular Biology and Genetics
local.publication.orgunit2Department of Electrical and Electronics Engineering
local.publication.orgunit2Department of Chemical and Biological Engineering
local.publication.orgunit2Graduate School of Sciences and Engineering
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