Articles with "ionic current" as a keyword



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Ionic Signal Amplification of DNA in a Nanopore

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Published in 2022 at "Small Methods"

DOI: 10.1002/smtd.202200761

Abstract: Ionic signal amplification is a key challenge for single‐molecule analyses by solid‐state nanopore sensing. Here, a permittivity gradient approach for amplifying ionic blockade characteristics of DNA in a nanofluidic channel is reported. The transmembrane ionic… read more here.

Keywords: ionic current; ionic signal; dna; signal amplification ... See more keywords
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Detection of alkaline phosphatase activity with a functionalized nanopipette

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Published in 2019 at "Electrochemistry Communications"

DOI: 10.1016/j.elecom.2019.01.008

Abstract: Abstract In this study, a label-free sensing method based on a functionalized nanopipette is proposed for detection of alkaline phosphatase (ALP) activity. This method is based on the unique charge transport properties of nanopores in… read more here.

Keywords: activity; detection alkaline; alkaline phosphatase; ionic current ... See more keywords
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Accounting for cardiac t-tubule increase with age and myocyte volume to improve measurements of its membrane area and ionic current densities.

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Published in 2020 at "Progress in biophysics and molecular biology"

DOI: 10.1016/j.pbiomolbio.2020.06.005

Abstract: In-silico models of cardiac myocytes allow simulating experiments in numbers on series of myocytes as well as on large populations of myocytes assembled in 3D structures. The simulated myocyte populations should have realistic values and… read more here.

Keywords: ionic current; volume; age; area ... See more keywords
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Enhanced Ionic Current Rectification through Innovative Integration of Polyelectrolyte Bilayers and Charged-Wall Smart Nanochannels.

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Published in 2022 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.2c04559

Abstract: The tools utilized by humans continue to shrink and speed up. Lab-on-a-chip (LOC) is one of the most recent techniques for decreasing the size of chemical systems. Today, LOCs have made substantial strides in developing… read more here.

Keywords: lbl soft; soft layer; ionic current; rectification ... See more keywords
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Identification of Spherical and Nonspherical Proteins by a Solid-State Nanopore.

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Published in 2018 at "Analytical chemistry"

DOI: 10.1021/acs.analchem.8b04136

Abstract: The three-dimensional structure of a protein plays an important role in protein dynamics in the biological system of human. By now, it remains a challenge to characterize and quantify the shape of a protein at… read more here.

Keywords: solid state; protein; ionic current; identification spherical ... See more keywords
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Temporal Response of Ionic Current Blockade in Solid-State Nanopores.

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Published in 2018 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.8b11819

Abstract: Signal delay is a crucial factor in resistive pulse analyses using low-thickness-to-diameter aspect-ratio pores that aim to detect fine features in the ionic current blockade during the fast translocation of individual analytes to attain single-molecule… read more here.

Keywords: solid state; state nanopores; ionic current; current blockade ... See more keywords
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Organic Molecular Probe Enabled Ionic Current Rectification toward Subcellular Detection of Glutathione with High Selectivity, Sensitivity, and Recyclability.

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Published in 2022 at "ACS sensors"

DOI: 10.1021/acssensors.2c01897

Abstract: Single-cell interrogation with the solid-state nanoprobes enables understanding of the linkage between cellular behavior and heterogeneity. Herein, inspired by the charge property of the organic molecular probe (OMP), a generic ionic current rectification (ICR) single-cell… read more here.

Keywords: ionic current; molecular probe; current rectification; subcellular detection ... See more keywords
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Ionic current correlations are ubiquitous across phyla

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Published in 2019 at "Scientific Reports"

DOI: 10.1038/s41598-018-38405-6

Abstract: Ionic currents, whether measured as conductance amplitude or as ion channel transcript numbers, can vary many-fold within a population of identified neurons. In invertebrate neuronal types multiple currents can be seen to vary while at… read more here.

Keywords: ionic current; correlations ubiquitous; conductance; across phyla ... See more keywords
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Ionic current modulation from DNA translocation through nanopores under high ionic strength and concentration gradients.

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Published in 2017 at "Nanoscale"

DOI: 10.1039/c6nr08123a

Abstract: Ion transport through nanopores is an important process in nature and has important engineering applications. To date, most studies of nanopore ion transport have been carried out with electrolytes of relatively low concentrations. In this… read more here.

Keywords: ionic current; dna; current modulation; translocation ... See more keywords
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Ionic current driven by a viscosity gradient

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Published in 2023 at "Faraday Discussions"

DOI: 10.1039/d3fd00053b

Abstract: Gradients of voltage, pressure, temperature, and salinity can transport objects in micro- and nanofluidic systems by well known mechanisms. This paper explores the dynamics of particles in a viscosity gradient... read more here.

Keywords: ionic current; driven viscosity; viscosity; current driven ... See more keywords
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Functionalized silica nanoparticles coupled with nanoporous membrane for efficient ionic current rectification

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Published in 2022 at "Nanotechnology"

DOI: 10.1088/1361-6528/ac9687

Abstract: In the last few decades, tremendous effort has been dedicated to mimicking the efficient ionic current rectification (ICR) of biological nanopores. Nanoporous membranes and singular nanopores with ICR functionality have been fabricated using advanced, yet… read more here.

Keywords: ionic current; silica nanoparticles; icr; efficient ionic ... See more keywords