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Full-Text Articles in Biomedical Engineering and Bioengineering
Impedance Optimized Electric Pulses For Enhancing Cutaneous Gene Electrotransfer, Reginald Morley Atkins
Impedance Optimized Electric Pulses For Enhancing Cutaneous Gene Electrotransfer, Reginald Morley Atkins
USF Tampa Graduate Theses and Dissertations
Electric field mediated gene delivery modalities have preferable safety profiles with the ability to rapidly transfect cells in vitro and in vivo with high efficiency. However, the current state of the art has relied on trial and error studies that target the average cell within a population present in treated tissue to derive electric pulse parameters. This results in fixed gene electrotransfer (GET) parameters that are not universally optimum. Slow progress towards the validation of a mechanism that explains this phenomena has also hindered its advancement in the clinic. To date, GET methods utilizing feedback control as a means to …
Plasma Mediated Molecular Delivery, Richard J. Connolly
Plasma Mediated Molecular Delivery, Richard J. Connolly
USF Tampa Graduate Theses and Dissertations
Non-viral delivery of plasmid DNA has traditionally relied upon physical forces applied directly to target tissues. These physical methods typically involve contact between an applicator and the target tissue and often cause transient patient discomfort. To overcome the contact-dependent limitations of such delivery methodologies, an atmospheric direct current plasma source was developed to deposit ionized gas molecules onto localized treatment sites. The deposition of charged species onto a treatment site can lead to the establishment of an electric field with strengths similar to those used for traditional electroporation. In vitro experiments proved that this technology could transiently permeabilize cell membranes …