نتایج جستجو برای: electroporation

تعداد نتایج: 4856  

Journal: :Applied sciences 2022

In this work, a novel electroporation system (electroporator) is presented, which capable of forming high frequency pulses in broad range parameters (65 ns–100 µs). The electroporator supports voltages up to 3 kV and currents 40 A based on H-bridge circuit topology. synchronized double crowbar driving sequence introduced generate short nanosecond independently the load. resultant generates with...

Journal: :Biochimica Et Biophysica Acta - Biomembranes 2021

Transient physical disruption of cell membranes by electric pulses (or electroporation) has significance in biomedical and biological applications requiring the delivery exogenous (bio)molecules to living cells. We demonstrate that actin networks regulate membrane permeability during electroporation. Disruption increases uptake membrane-impermeable molecules such as propidium iodide Our experim...

Journal: :Cold Spring Harbor Protocols 2019

2012
Rita Arabsolghar Mozhgan Rasti

BACKGROUND Electroporation is a valuable tool for small interfering RNA (siRNA) delivery into cells because it efficiently transforms a wide variety of cell types. Since electroporation condition for each cell type must be determined experimentally, this study presents an optimal electroporation strategy to reproducibly and efficiently transfect MDA-MB 468 human breast cancer cell with siRNA. ...

Journal: :Annual review of biomedical engineering 2014
Martin L Yarmush Alexander Golberg Gregor Serša Tadej Kotnik Damijan Miklavčič

When high-amplitude, short-duration pulsed electric fields are applied to cells and tissues, the permeability of the cell membranes and tissue is increased. This increase in permeability is currently explained by the temporary appearance of aqueous pores within the cell membrane, a phenomenon termed electroporation. During the past four decades, advances in fundamental and experimental electrop...

2011
Anthony J. Sprangers Brian Freeman Brenda M. Ogle

Electroporation is a common method of gene transfer that has recently been used to efficiently transfect mesenchymal stem (stromal) cells (MSCs); however, the electrical stimulus has the potential to alter cell state. This study examines possible negative effects of electroporation of human embryonic stem cell (hESC)-derived MSCs including, loss of potency or induction of differentiation. Immun...

Journal: :Biomedical microdevices 2008
Cristian Ionescu-Zanetti Andrew Blatz Michelle Khine

Single-cell electroporation, in which a focused electric field is applied to permeabilize an individual target cell using relatively low applied voltages, has demonstrated improved cell viability and transfection rates over conventional bulk electroporation set-ups. Here, we introduce a new strategy, in conjunction with single-cell electroporation, to enhance exogenous transport efficiency: ele...

Journal: :Journal of controlled release : official journal of the Controlled Release Society 1998
A Jadoul N Lecouturier J Mesens W Caers V Préat

The aim of this study was to evaluate the transdermal permeation of alniditan by electroporation and to compare with iontophoretic delivery. The influence of the electrical parameters of electroporation was investigated in vitro using a factorial design study. The transdermal flux of alniditan was enhanced by two orders of magnitude by application of high voltage electrical pulses. The electric...

Journal: :International journal of pharmaceutics 2006
Esi B Ghartey-Tagoe Brian A Babbin Asma Nusrat Andrew S Neish Mark R Prausnitz

This study was conducted to evaluate the ability of electroporation to efficiently transfect differentiated intestinal epithelial monolayers with plasmid DNA and to determine whether electroporation can transfect these monolayers with short-interfering RNA (siRNA) to cause gene silencing. Confluent T84 monolayers were transfected with reporter plasmids expressing luciferase or green-fluorescent...

Journal: :Bioelectrochemistry 2018
Tina Batista Napotnik Damijan Miklavčič

Exposing cells to an electric field leads to electroporation of the cell membrane which has already been explored and used in a number of applications in medicine and food biotechnology (e.g. electrochemotherapy, gene electrotransfer, extraction of biomolecules). The extent of electroporation depends on several conditions, including pulse parameters, types of cells and tissues, surrounding medi...

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