Solid‐State Ion Channels for Potentiometric Sensing

Jágerszki, Gyula; Takács, Ágoston; Bitter, I.; Gyurcsányi, Róbert E.

doi:10.1002/ange.201003849

Cited by 19 publications

(13 citation statements)

References 37 publications

(29 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Consequently, some nanomaterial-based potentiometric ion sensors have been developed without polymeric membranes matrix. For example, gold nanopores, which are fabricated by electroless deposition of gold onto the surface of track-etched polycarbonate nanopore membranes, are used to immobilize Ag + -selective ionophore to develop solid-state ion channels for potentiometric sensing [50]. The nanopore-based Ag + -ISE shows fast Nernstian potential responses with the LOD in the sub-nM range.…”

Section: Nanomaterial-based Potentiometric Sensing Membranesmentioning

confidence: 99%

Applications of nanomaterials in potentiometric sensors

Yin

Qin

2013

TrAC Trends in Analytical Chemistry

175

104

View full text Add to dashboard Cite

Keywords:Aptasensor Biosensor Carbon-based nanomaterial Chemosensor Ionophore Ion-selective electrode Ion-selective microelectrode Nanomaterial Neutral species Potentiometric sensor a b s t r a c t Nanomaterials play an important role in the fabrication of chemosensors and biosensors, due to their unique physical and chemical properties, such as large surface area/volume ratio, good conductivity, excellent electrocatalytic activity and high mechanical strength. We review recent advances in the applications of these nanomaterials in potentiometric sensors. We highlight the development of stable solidstate polymeric membrane ion-selective electrodes (ISEs). We describe ISEs based on ionophore-modified nanomaterials. Also, we present highly-sensitive potentiometric biosensors based on nanomaterials.

show abstract

Section: Nanomaterial-based Potentiometric Sensing Membranesmentioning

confidence: 99%

Applications of nanomaterials in potentiometric sensors

Yin

Qin

2013

TrAC Trends in Analytical Chemistry

175

104

View full text Add to dashboard Cite

show abstract

“…Note that graphene layer is impermeable to even small atoms, such as helium [135]. However, recently, functionalized nanopores in graphene monolayers have been theoretically designed and have shown that they could serve as ionic sieves of high selectivity and transparency [63], in analogy to natural functional proteins [136][137][138]. In Fig.…”

Section: Ionic and Atomic Separation By Graphene Nanoporesmentioning

confidence: 99%

Porous Nanocarbons: Molecular Filtration and Electronics

Wang¹,

Baskin²

2013

Advances in Graphene Science

View full text Add to dashboard Cite

“…selective detection of target species in complex samples, still requires the use of selective receptors, either added to the sample solution [10,14] or confined to the nanopore interior [15,16]. In this latter approach either stochastic sensing [17,18] based on reversible binding of the target [19,20] or the more conventional approach in which the target is bound "irreversibly" into the nanopore sensing zone is used [21][22][23][24][25]. While there are exceptions [20], nanopore sensing requires nanopores with sizes that are comparable to, but larger than, that of the target.…”

Section: Introductionmentioning

confidence: 99%

Nanoparticle displacement assay with electrochemical nanopore-based sensors

Lautner

Plesz

Jágerszki³

et al. 2016

Electrochemistry Communications

Self Cite

View full text Add to dashboard Cite

Please cite this article as: Gergely Lautner, Mónika Plesz, Gyula Jágerszki, Péter Fürjes, Róbert E. Gyurcsányi, Nanoparticle displacement assay with electrochemical nanopore-based sensors, Electrochemistry Communications (2016Communications ( ), doi: 10.1016Communications ( /j.elecom.2016 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT Abstract:The proof of concept of a nanoparticle displacement assay that enables the use of large diameter nanopores for the detection of targets of smaller molecular dimensions is presented. We hypothesized that an inherent signal amplification should arise from the selective displacement of nanoparticles preloaded in a nanopore by a much smaller molecular target. The method is demonstrated using peptide nucleic acid (PNA)-functionalized gold nanopore arrays in which short DNA-modified gold nanoparticles are anchored by weak interaction. Complementary microRNAs are detected via the resistance change caused by competitive displacement of nanoparticles from the PNA-functionalized nanopores.

show abstract

Solid‐State Ion Channels for Potentiometric Sensing

Cited by 19 publications

References 37 publications

Applications of nanomaterials in potentiometric sensors

Applications of nanomaterials in potentiometric sensors

Porous Nanocarbons: Molecular Filtration and Electronics

Nanoparticle displacement assay with electrochemical nanopore-based sensors

Contact Info

Product

Resources

About