Track-etched membrane as fluorescence-based pH biosensor

Espinoza, Soto; Aguiar, Constanza; Richieri, F.; Grasselli, Mariano

doi:10.1016/j.reactfunctpolym.2018.11.018

Cited by 7 publications

(1 citation statement)

References 20 publications

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“…TM and the composite materials based on them are key elements for many applications [1]. They are widely used as model systems and templates for the synthesis of micro-and nanostructures [2,3] and composites (metalized, hybrid, magnetoactive, electroactive, e.g., SERS-active substrates [4,5]), in technological and laboratory filtration [6], cell cultivation [7], etc. Among all areas, the use of TM in biology is especially important [8,9].…”

Section: Introductionmentioning

confidence: 99%

AFM Characterization of Track-Etched Membranes: Pores Parameters Distribution and Disorder Factor

et al. 2022

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The structural characteristics of polymer track-etched membranes (TM) were obtained by atomic force microscopy (AFM) for a set of samples (polypropylene, polycarbonate, polyethylene terephthalate, with average pore diameters ~183, 375, and 1430 nm, respectively). The analysis of AFM experimental data was performed by using a specially developed technique for computer analysis of AFM images. The method allows one to obtain such parameters of TM as distribution of pore diameters, distribution of the minimum distances between the nearest pores, pore surface density, as well as to identify defective pores. Spatial inhomogeneities in the distribution of pore parameters were revealed. No anisotropy (some specific selected direction) was found in the surface distribution of the pores in the samples under study.

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Section: Introductionmentioning

confidence: 99%

AFM Characterization of Track-Etched Membranes: Pores Parameters Distribution and Disorder Factor

et al. 2022

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Bioinspired Solid‐State Nanochannel Sensors: From Ionic Current Signals, Current, and Fluorescence Dual Signals to Faraday Current Signals

Zhang¹,

Zhang²

2021

Small

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Inspired from bioprotein channels of living organisms, constructing “abiotic” analogues, solid‐state nanochannels, to achieve “smart” sensing towards various targets, is highly seductive. When encountered with certain stimuli, dynamic switch of terminal modified probes in terms of surface charge, conformation, fluorescence property, electric potential as well as wettability can be monitored via transmembrane ionic current, fluorescence intensity, faraday current signals of nanochannels and so on. Herein, the modification methodologies of nanochannels and targets‐detecting application are summarized in ions, small molecules, as well as biomolecules, and systematically reviewed are the nanochannel‐based detection means including 1) by transmembrane current signals; 2) by the coordination of current‐ and fluorescence‐dual signals; 3) by faraday current signals from nanochannel‐based electrode. The coordination of current and fluorescence dual signals offers great benefits for synchronous temporal and spatial monitoring. Faraday signals enable the nanoelectrode to monitor both redox and non‐redox components. Notably, by incorporation with confined effect of tip region of a needle‐like nanopipette, glorious in‐vivo monitoring is conferred on the nanopipette detector at high temporal‐spatial resolution. In addition, some outlooks for future application in reliable practical samples analysis and leading research endeavors in the related fantastic fields are provided.

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Electropsun non-woven luminescent two-dye pH sensors: Effect of morphology on the sensing performance

Vieira,

Canejo,

Huertas

et al. 2024

Surfaces and Interfaces

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Track-etched membrane as fluorescence-based pH biosensor

Cited by 7 publications

References 20 publications

AFM Characterization of Track-Etched Membranes: Pores Parameters Distribution and Disorder Factor

AFM Characterization of Track-Etched Membranes: Pores Parameters Distribution and Disorder Factor

Bioinspired Solid‐State Nanochannel Sensors: From Ionic Current Signals, Current, and Fluorescence Dual Signals to Faraday Current Signals

Electropsun non-woven luminescent two-dye pH sensors: Effect of morphology on the sensing performance

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