- -

Single cigar-shaped nanopores functionalized with amphoteric amino acid chains: experimental and theoretical characterization

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

Single cigar-shaped nanopores functionalized with amphoteric amino acid chains: experimental and theoretical characterization

Show simple item record

Files in this item

dc.contributor.author Ali, Mubarak es_ES
dc.contributor.author Ramirez Hoyos, Patricio es_ES
dc.contributor.author Nguyen, Hung Quoc es_ES
dc.contributor.author Nasir, Saima es_ES
dc.contributor.author Cervera, Javier es_ES
dc.contributor.author Mafe, Salvador es_ES
dc.contributor.author Ensinger, Wolfgang es_ES
dc.date.accessioned 2013-04-17T11:59:45Z
dc.date.issued 2012
dc.identifier.issn 1936-0851
dc.identifier.uri http://hdl.handle.net/10251/27982
dc.description.abstract We present an experimental and theoretical characterization of single cigar-shaped nanopores with pH-responsive carboxylic acid and lysine chains functionalized on the pore surface. The nanopore characterization includes (i) optical images of the nanostructure obtained by FESEM; (ii) different chemical procedures for the nanopore preparation (etching time and functionalizations; pH and electrolyte concentration of the external solution) allowing externally tunable nanopore responses monitored by the current-voltage (I-V) curves; and (iii) transport simulations obtained with a multilayer nanopore model. We show that a single, approximately symmetric nanopore can be operated as a reconfigurable diode showing different rectifying behaviors by applying chemical and electrical signals. The remarkable characteristics of the new nanopore are the sharp response observed in the I-V curves, the improved tunability (with respect to previous designs of symmetric nanopores) which is achieved because of the direct external access to the nanostructure mouths, and the broad range of rectifying properties. The results concern both fundamental concepts useful for the understanding of transport processes in biological systems (ion channels) and applications relevant for tunable nanopore technology (information processing and drug controlled release). © 2012 American Chemical Society. es_ES
dc.description.sponsorship P.R., J.C., and S.M. acknowledge the financial support from the Ministry of Science and Innovation of Spain, Materials Program (Project Nos. MAT2009-07747) and FEDER. M.A., Q.H.N., S.N, and W.E. gratefully acknowledge financial support by the Beilstein-Institut, Frankfurt/Main, Germany, within the research collaboration NanoBiC, and Prof. C. Trautmann (GSI, Department of Materials Research) for support with irradiation experiments. en_EN
dc.language Inglés es_ES
dc.publisher American Chemical Society es_ES
dc.relation.ispartof ACS Nano es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Amphoteric amino acid chains es_ES
dc.subject Cigar-shaped nanopore es_ES
dc.subject Current-voltage curves es_ES
dc.subject Logic functions es_ES
dc.subject Amino acid chains es_ES
dc.subject Chemical procedures es_ES
dc.subject Current voltage curve es_ES
dc.subject Drug controlled release es_ES
dc.subject Electrical signal es_ES
dc.subject Electrolyte concentration es_ES
dc.subject Etching time es_ES
dc.subject External solutions es_ES
dc.subject Functionalizations es_ES
dc.subject Functionalized es_ES
dc.subject Fundamental concepts es_ES
dc.subject I - V curve es_ES
dc.subject Ion channel es_ES
dc.subject Optical image es_ES
dc.subject PH-responsive es_ES
dc.subject Pore surface es_ES
dc.subject Re-configurable es_ES
dc.subject Rectifying behaviors es_ES
dc.subject Rectifying properties es_ES
dc.subject Transport process es_ES
dc.subject Transport simulation es_ES
dc.subject Tunabilities es_ES
dc.subject Amino acids es_ES
dc.subject Carboxylic acids es_ES
dc.subject Characterization es_ES
dc.subject Data processing es_ES
dc.subject Geometrical optics es_ES
dc.subject Iodine es_ES
dc.subject Nanostructures es_ES
dc.subject Nanopores es_ES
dc.subject Carboxylic acid es_ES
dc.subject Lysine es_ES
dc.subject Article es_ES
dc.subject Chemistry es_ES
dc.subject Electric conductivity es_ES
dc.subject Electrochemistry es_ES
dc.subject Logic es_ES
dc.subject Nanopore es_ES
dc.subject PH es_ES
dc.subject Surface property es_ES
dc.subject Theoretical model es_ES
dc.subject Hydrogen-Ion Concentration es_ES
dc.subject Models, Theoretical es_ES
dc.subject Surface Properties es_ES
dc.subject.classification FISICA APLICADA es_ES
dc.title Single cigar-shaped nanopores functionalized with amphoteric amino acid chains: experimental and theoretical characterization es_ES
dc.type Artículo es_ES
dc.embargo.lift 10000-01-01
dc.embargo.terms forever es_ES
dc.identifier.doi 10.1021/nn3010119
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada es_ES
dc.description.bibliographicCitation Ali, M.; Ramirez Hoyos, P.; Nguyen, HQ.; Nasir, S.; Cervera, J.; Mafe, S.; Ensinger, W. (2012). Single cigar-shaped nanopores functionalized with amphoteric amino acid chains: experimental and theoretical characterization. ACS Nano. 6(4):3631-3640. doi:10.1021/nn3010119 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://pubs.acs.org/doi/ipdf/10.1021/nn3010119 es_ES
dc.description.upvformatpinicio 3631 es_ES
dc.description.upvformatpfin 3640 es_ES
dc.type.version info:eu repo/semantics/publishedVersion es_ES
dc.description.volume 6 es_ES
dc.description.issue 4 es_ES
dc.relation.senia 224044


This item appears in the following Collection(s)

Show simple item record