Periodic polarization duty cycle tunes performance and adhesion of anodic electroactive biofilms
Bioelectrochemistry. 2023 Sep 28;155:108581. doi: 10.1016/j.bioelechem.2023.108581. Online ahead of print.ABSTRACTPeriodic polarization can improve the performance of anodic electroactive biofilms (EABs). The impact of the half-period duration was previously investigated at constant duty cycle (50%), i.e., the proportion of a period during which the electrode is polarized. Here, we cultured eight EABs on glassy carbon electrodes at four different duty cycles (50%, 67%, 80% and 91%) by varying the time interval under open circuit conditions, while keeping the polarization duration at 10 s. The shorter duty cycles slightly s...
Source: Bioelectrochemistry - October 26, 2023 Category: Biochemistry Authors: Xu Zhang Amanda K Luther Korneel Rabaey Antonin Pr évoteau Source Type: research
Cellular excitability and ns-pulsed electric fields: Potential involvement of lipid oxidation in the action potential activation
Bioelectrochemistry. 2023 Oct 12;155:108588. doi: 10.1016/j.bioelechem.2023.108588. Online ahead of print.ABSTRACTRecent studies showed that nanosecond pulsed electric fields (nsPEFs) can activate voltage-gated ion channels (VGICs) and trigger action potentials (APs) in excitable cells. Under physiological conditions, VGICs' activation takes place on time scales of the order 10-100 µs. These time scales are considerably longer than the applied pulse duration, thus activation of VGICs by nsPEFs remains puzzling and there is no clear consensus on the mechanisms involved. Here we propose that changes in local electrical prop...
Source: Bioelectrochemistry - October 25, 2023 Category: Biochemistry Authors: Lea Rems Aurianne Rainot Daniel Wiczew Natalia Szulc Mounir Tarek Source Type: research
Cellular excitability and ns-pulsed electric fields: Potential involvement of lipid oxidation in the action potential activation
Bioelectrochemistry. 2023 Oct 12;155:108588. doi: 10.1016/j.bioelechem.2023.108588. Online ahead of print.ABSTRACTRecent studies showed that nanosecond pulsed electric fields (nsPEFs) can activate voltage-gated ion channels (VGICs) and trigger action potentials (APs) in excitable cells. Under physiological conditions, VGICs' activation takes place on time scales of the order 10-100 µs. These time scales are considerably longer than the applied pulse duration, thus activation of VGICs by nsPEFs remains puzzling and there is no clear consensus on the mechanisms involved. Here we propose that changes in local electrical prop...
Source: Bioelectrochemistry - October 25, 2023 Category: Biochemistry Authors: Lea Rems Aurianne Rainot Daniel Wiczew Natalia Szulc Mounir Tarek Source Type: research
Polypyrrole-based structures for activation of cellular functions under electrical stimulation
Bioelectrochemistry. 2023 Oct 10;155:108585. doi: 10.1016/j.bioelechem.2023.108585. Online ahead of print.ABSTRACTPolypyrrole (Ppy) is an electroconductive polymer used in various applications, including in vitro experiments with cell cultures under electrical stimulation (ES). Ppy can be applied in various forms and most importantly, it is biocompatible with cells. Ppy specifically directs ES to cells, which makes Ppy a potential polymer for the development of novel technologies for targeted tissue regeneration. The high potential of ES in combination with different Ppy-based systems, such as hydrogels, scaffolds, or Ppy-...
Source: Bioelectrochemistry - October 17, 2023 Category: Biochemistry Authors: Ilona Uzieliene Anton Popov Raminta Vaiciuleviciute Gailute Kirdaite Eiva Bernotiene Almira Ramanaviciene Source Type: research
Polypyrrole-based structures for activation of cellular functions under electrical stimulation
Bioelectrochemistry. 2023 Oct 10;155:108585. doi: 10.1016/j.bioelechem.2023.108585. Online ahead of print.ABSTRACTPolypyrrole (Ppy) is an electroconductive polymer used in various applications, including in vitro experiments with cell cultures under electrical stimulation (ES). Ppy can be applied in various forms and most importantly, it is biocompatible with cells. Ppy specifically directs ES to cells, which makes Ppy a potential polymer for the development of novel technologies for targeted tissue regeneration. The high potential of ES in combination with different Ppy-based systems, such as hydrogels, scaffolds, or Ppy-...
Source: Bioelectrochemistry - October 17, 2023 Category: Biochemistry Authors: Ilona Uzieliene Anton Popov Raminta Vaiciuleviciute Gailute Kirdaite Eiva Bernotiene Almira Ramanaviciene Source Type: research
Polypyrrole-based structures for activation of cellular functions under electrical stimulation
Bioelectrochemistry. 2023 Oct 10;155:108585. doi: 10.1016/j.bioelechem.2023.108585. Online ahead of print.ABSTRACTPolypyrrole (Ppy) is an electroconductive polymer used in various applications, including in vitro experiments with cell cultures under electrical stimulation (ES). Ppy can be applied in various forms and most importantly, it is biocompatible with cells. Ppy specifically directs ES to cells, which makes Ppy a potential polymer for the development of novel technologies for targeted tissue regeneration. The high potential of ES in combination with different Ppy-based systems, such as hydrogels, scaffolds, or Ppy-...
Source: Bioelectrochemistry - October 17, 2023 Category: Biochemistry Authors: Ilona Uzieliene Anton Popov Raminta Vaiciuleviciute Gailute Kirdaite Eiva Bernotiene Almira Ramanaviciene Source Type: research
Polypyrrole-based structures for activation of cellular functions under electrical stimulation
Bioelectrochemistry. 2023 Oct 10;155:108585. doi: 10.1016/j.bioelechem.2023.108585. Online ahead of print.ABSTRACTPolypyrrole (Ppy) is an electroconductive polymer used in various applications, including in vitro experiments with cell cultures under electrical stimulation (ES). Ppy can be applied in various forms and most importantly, it is biocompatible with cells. Ppy specifically directs ES to cells, which makes Ppy a potential polymer for the development of novel technologies for targeted tissue regeneration. The high potential of ES in combination with different Ppy-based systems, such as hydrogels, scaffolds, or Ppy-...
Source: Bioelectrochemistry - October 17, 2023 Category: Biochemistry Authors: Ilona Uzieliene Anton Popov Raminta Vaiciuleviciute Gailute Kirdaite Eiva Bernotiene Almira Ramanaviciene Source Type: research
Polypyrrole-based structures for activation of cellular functions under electrical stimulation
Bioelectrochemistry. 2023 Oct 10;155:108585. doi: 10.1016/j.bioelechem.2023.108585. Online ahead of print.ABSTRACTPolypyrrole (Ppy) is an electroconductive polymer used in various applications, including in vitro experiments with cell cultures under electrical stimulation (ES). Ppy can be applied in various forms and most importantly, it is biocompatible with cells. Ppy specifically directs ES to cells, which makes Ppy a potential polymer for the development of novel technologies for targeted tissue regeneration. The high potential of ES in combination with different Ppy-based systems, such as hydrogels, scaffolds, or Ppy-...
Source: Bioelectrochemistry - October 17, 2023 Category: Biochemistry Authors: Ilona Uzieliene Anton Popov Raminta Vaiciuleviciute Gailute Kirdaite Eiva Bernotiene Almira Ramanaviciene Source Type: research
Polypyrrole-based structures for activation of cellular functions under electrical stimulation
Bioelectrochemistry. 2023 Oct 10;155:108585. doi: 10.1016/j.bioelechem.2023.108585. Online ahead of print.ABSTRACTPolypyrrole (Ppy) is an electroconductive polymer used in various applications, including in vitro experiments with cell cultures under electrical stimulation (ES). Ppy can be applied in various forms and most importantly, it is biocompatible with cells. Ppy specifically directs ES to cells, which makes Ppy a potential polymer for the development of novel technologies for targeted tissue regeneration. The high potential of ES in combination with different Ppy-based systems, such as hydrogels, scaffolds, or Ppy-...
Source: Bioelectrochemistry - October 17, 2023 Category: Biochemistry Authors: Ilona Uzieliene Anton Popov Raminta Vaiciuleviciute Gailute Kirdaite Eiva Bernotiene Almira Ramanaviciene Source Type: research
Polypyrrole-based structures for activation of cellular functions under electrical stimulation
Bioelectrochemistry. 2023 Oct 10;155:108585. doi: 10.1016/j.bioelechem.2023.108585. Online ahead of print.ABSTRACTPolypyrrole (Ppy) is an electroconductive polymer used in various applications, including in vitro experiments with cell cultures under electrical stimulation (ES). Ppy can be applied in various forms and most importantly, it is biocompatible with cells. Ppy specifically directs ES to cells, which makes Ppy a potential polymer for the development of novel technologies for targeted tissue regeneration. The high potential of ES in combination with different Ppy-based systems, such as hydrogels, scaffolds, or Ppy-...
Source: Bioelectrochemistry - October 17, 2023 Category: Biochemistry Authors: Ilona Uzieliene Anton Popov Raminta Vaiciuleviciute Gailute Kirdaite Eiva Bernotiene Almira Ramanaviciene Source Type: research
A hair-ball heterostructure of MnS-MnS < sub > 2 < /sub > /CdS with compact linking interface for ultrasensitive photoelectrochemical bioanalysis of carcinoembryonic antigen
Bioelectrochemistry. 2023 Oct 11;155:108586. doi: 10.1016/j.bioelechem.2023.108586. Online ahead of print.ABSTRACTThe heterostructured photoelectric material is supposed to markedly promote the photoelectrochemical (PEC) property. Herein, the species heterostructured MnS/CdS and MnS-MnS2/CdS(1∼2) composites derived from Mn-ZIF MOFs via a sulfofication reaction using Cd(NO3)2, CdC12 cadmium source, respectively. Under irradiation, the PEC tests showed that the photocurrent response of MnS-MnS2/CdS(1∼2) signally enhanced compared to globose MnS/CdS heterostructure and pure MnS or CdS. It was ascribed to the matching band...
Source: Bioelectrochemistry - October 16, 2023 Category: Biochemistry Authors: Delun Zheng Ruilong Zhang Kaibo Zheng Caiyun Zhang Jianqiao Chen Chengwen Wang Shaochen Sun Sihan Lin Source Type: research
Electrochemical techniques for label-free and early detection of growing microbial cells and biofilms
Bioelectrochemistry. 2023 Oct 11;155:108587. doi: 10.1016/j.bioelechem.2023.108587. Online ahead of print.ABSTRACTOver the past decades, the misuse or abuse of antimicrobial agents to prevent and/or control infections has led to increased resistance of microbes to treatments, and antimicrobial resistance is now a subject of major global concern. In some cases, microbes possess the capacity to attach to biotic or abiotic surfaces, and to produce a protective polymeric matrix, forming biofilms of higher resistance and virulence compared to planktonic forms. To avoid further excessive and inappropriate use of antimicrobials, ...
Source: Bioelectrochemistry - October 15, 2023 Category: Biochemistry Authors: Joelle Saulnier Catherine Jose Florence Lagarde Source Type: research
Electrochemical techniques for label-free and early detection of growing microbial cells and biofilms
Bioelectrochemistry. 2023 Oct 11;155:108587. doi: 10.1016/j.bioelechem.2023.108587. Online ahead of print.ABSTRACTOver the past decades, the misuse or abuse of antimicrobial agents to prevent and/or control infections has led to increased resistance of microbes to treatments, and antimicrobial resistance is now a subject of major global concern. In some cases, microbes possess the capacity to attach to biotic or abiotic surfaces, and to produce a protective polymeric matrix, forming biofilms of higher resistance and virulence compared to planktonic forms. To avoid further excessive and inappropriate use of antimicrobials, ...
Source: Bioelectrochemistry - October 15, 2023 Category: Biochemistry Authors: Joelle Saulnier Catherine Jose Florence Lagarde Source Type: research
Development of a label-free impedimetric aptasensor based on Zr-MOF and titaniom carbide nanosheets for detection of L-tryptophan
This study primarily focuses on the L-Tryptophan (Trp) biomarker assay, with particular attention given to its objectives. The investigation centers on the potential implications of imbalanced Trp levels and its associated metabolites, which have been attributed to the spectrum of both psychological and physiological disorders, encompassing conditions such as cancer. Therefore, the swift and accurate detection of this amino acid is of paramount importance in cancer monitoring, as it plays a crucial role in preventing the metastasis and spread of cancer cells. Thus, an electrochemical aptasensor was designed based on nanoco...
Source: Bioelectrochemistry - October 13, 2023 Category: Biochemistry Authors: Farzaneh Mohammadi Mahmoud Roushani Akram Valipour Source Type: research
Development of a label-free impedimetric aptasensor based on Zr-MOF and titaniom carbide nanosheets for detection of L-tryptophan
This study primarily focuses on the L-Tryptophan (Trp) biomarker assay, with particular attention given to its objectives. The investigation centers on the potential implications of imbalanced Trp levels and its associated metabolites, which have been attributed to the spectrum of both psychological and physiological disorders, encompassing conditions such as cancer. Therefore, the swift and accurate detection of this amino acid is of paramount importance in cancer monitoring, as it plays a crucial role in preventing the metastasis and spread of cancer cells. Thus, an electrochemical aptasensor was designed based on nanoco...
Source: Bioelectrochemistry - October 13, 2023 Category: Biochemistry Authors: Farzaneh Mohammadi Mahmoud Roushani Akram Valipour Source Type: research
