Publication:
Bulk-heterojunction photocapacitors with high open-circuit voltage for low light intensity photostimulation of neurons

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.departmentKUTTAM (Koç University Research Center for Translational Medicine)
dc.contributor.departmentSchool of Medicine
dc.contributor.kuauthorDikbaş, Uğur Meriç
dc.contributor.kuauthorKavaklı, İbrahim Halil
dc.contributor.kuauthorMelikov, Rustamzhon
dc.contributor.kuauthorNizamoğlu, Sedat
dc.contributor.kuauthorSadeghi, Sadra
dc.contributor.kuauthorŞahin, Afsun
dc.contributor.kuauthorSrivastava, Shashi Bhushan
dc.contributor.kuauthorYıldız, Erdost
dc.contributor.schoolcollegeinstituteCollege of Engineering
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.contributor.schoolcollegeinstituteGRADUATE SCHOOL OF SCIENCES AND ENGINEERING
dc.contributor.schoolcollegeinstituteResearch Center
dc.contributor.schoolcollegeinstituteSCHOOL OF MEDICINE
dc.date.accessioned2024-11-09T11:58:39Z
dc.date.issued2021
dc.description.abstractHigh-level transduction control of light to bioelectricity is an important goal for the realization of superior neuron-device interfaces that can be used for regulating fundamental cellular processes to cure neurological disorders. In this study, a single-junction, wireless, and capacitive-charge-injecting optoelectronic biointerface with negligible faradaic reactions by using a high open-circuit voltage (0.75 V) bulk heterojunction of PTB7-Th:PC71BM is designed and demonstrated. The biointerface generates a 2-fold higher photocurrent in comparison with P3HT:PC61BM having an open-circuit voltage of 0.55 V. Furthermore, we observed that light intensity is logarithmically correlated with the open-circuit voltage of solar cells, and the photovoltage of the biointerfaces varies the switching speed of capacitive charge-transfer. Finally, pulse trains of capacitive stimuli at a low light intensity of 20 mW cm−2elicit action potential generation in primary hippocampal neurons extracted from E15-E17 Wistar Albino rats. These findings show the great promise of high open-circuit voltage bulk heterojunction biointerfaces for non-genetic, all-optical and safe modulation of neurons.
dc.description.fulltextYES
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.issue5
dc.description.openaccessYES
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuEU
dc.description.sponsorshipEuropean Union (EU)
dc.description.sponsorshipHorizon 2020
dc.description.sponsorshipEuropean Research Council (ERC)
dc.description.sponsorshipResearch and Innovation Programme
dc.description.sponsorshipTurkish Academy of Sciences (TÜBA-GEBİP)
dc.description.sponsorshipThe Young Scientist Award Program
dc.description.sponsorshipScience Academy of Turkey (BAGEP)
dc.description.sponsorshipThe Young Scientist Award Program
dc.description.versionPublisher version
dc.description.volume9
dc.identifier.doi10.1039/d0tc03477k
dc.identifier.eissn2050-7534
dc.identifier.embargoNO
dc.identifier.filenameinventorynoIR02697
dc.identifier.issn2050-7526
dc.identifier.quartileQ1
dc.identifier.scopus2-s2.0-85100847585
dc.identifier.urihttps://hdl.handle.net/20.500.14288/904
dc.identifier.wos618050600023
dc.language.isoeng
dc.publisherRoyal Society of Chemistry (RSC)
dc.relation.grantno639846
dc.relation.ispartofJournal of Materials Chemistry C
dc.relation.urihttp://cdm21054.contentdm.oclc.org/cdm/ref/collection/IR/id/9343
dc.subjectMaterials science
dc.subjectPhysics
dc.titleBulk-heterojunction photocapacitors with high open-circuit voltage for low light intensity photostimulation of neurons
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorSrivastava, Shashi Bhushan
local.contributor.kuauthorMelikov, Rustamzhon
local.contributor.kuauthorYıldız, Erdost
local.contributor.kuauthorDikbaş, Uğur Meriç
local.contributor.kuauthorSadeghi, Sadra
local.contributor.kuauthorKavaklı, İbrahim Halil
local.contributor.kuauthorŞahin, Afsun
local.contributor.kuauthorNizamoğlu, Sedat
local.publication.orgunit1GRADUATE SCHOOL OF SCIENCES AND ENGINEERING
local.publication.orgunit1College of Engineering
local.publication.orgunit1College of Sciences
local.publication.orgunit1SCHOOL OF MEDICINE
local.publication.orgunit1Research Center
local.publication.orgunit2KUTTAM (Koç University Research Center for Translational Medicine)
local.publication.orgunit2Department of Electrical and Electronics Engineering
local.publication.orgunit2Department of Molecular Biology and Genetics
local.publication.orgunit2Department of Chemical and Biological Engineering
local.publication.orgunit2School of Medicine
local.publication.orgunit2Graduate School of Sciences and Engineering
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