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- W2012033931 abstract "The efficacy of electroporation is known to vary significantly across a wide variety of biological research and clinical applications, but as of this writing, a generalized approach to simultaneously improve efficiency and maintain viability has not been available in the literature. To address that discrepancy, we here outline an approach that is based on the mapping of the scaling relationships among electroporation-mediated molecular delivery, cellular viability, and electric pulse parameters. The delivery of Fluorescein-Dextran into 3T3 mouse fibroblast cells was used as a model system. The pulse was rationally split into two sequential phases: a first precursor for permeabilization, followed by a second one for molecular delivery. Extensive data in the parameter space of the second pulse strength and duration were collected and analyzed with flow cytometry. The fluorescence intensity correlated linearly with the second pulse duration, confirming the dominant role of electrophoresis in delivery. The delivery efficiency exhibited a characteristic sigmoidal dependence on the field strength. An examination of short-term cell death using 7-Aminoactinomycin D demonstrated a convincing linear correlation with respect to the electrical energy. Based on these scaling relationships, an optimal field strength becomes identifiable. A model study was also performed, and the results were compared with the experimental data to elucidate underlying mechanisms. The comparison reveals the existence of a critical transmembrane potential above which delivery with the second pulse becomes effective. Together, these efforts establish a general route to enhance the functionality of electroporation." @default.
- W2012033931 created "2016-06-24" @default.
- W2012033931 creator A5009804720 @default.
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- W2012033931 date "2014-02-01" @default.
- W2012033931 modified "2023-10-07" @default.
- W2012033931 title "Scaling Relationship and Optimization of Double-Pulse Electroporation" @default.
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- W2012033931 doi "https://doi.org/10.1016/j.bpj.2013.12.045" @default.
- W2012033931 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3944924" @default.
- W2012033931 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/24559983" @default.
- W2012033931 hasPublicationYear "2014" @default.