Possibility of electroporation with microneedle-electrode array for transdermal delivery of macromolecules
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Fabrication of polymeric microneedle arrays containing Amphotericin-B for transdermal drug delivery
Background and Aim: Drug delivery through the microneedle array has been considered as an easy and non-invasive method in recent years. The purpose of this study was to design and construct an array of biodegradable polymeric microneedles containing Amphotericin-B to introduce this system and its use in the treatment of cutaneous lesions caused by Leishmania major parasite inoculation as a mode...
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The impact of many biopharmaceuticals, including protein- and gene-based therapies, has been limited by the need for better methods of delivery into cells within tissues. Here, intracellular delivery of molecules and transfection with plasmid DNA by electroporation is presented using a novel microneedle electrode array designed for the targeted treatment of skin and other tissue surfaces. The m...
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In vivo electroporation is an appealing method to deliver nucleic acid into living tissues, but the clinical application of such a method was limited due to severe tissue damage and poor coverage of the tissue surface. Here we present the validation of a novel flexible microneedle array electrode (MNAE) chip, in which the microneedle array and the flexible substrate are integrated together to s...
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Transdermal patches are now widely used in topical and transdermal drug delivery systems (TDDS). Up to now, TDDS has been used in several conditions, such as smoking cessation, analgesic effect, nausea, contraception, and hormone therapy. Basically, there are two types of transdermal patches: the reservoir-type patches and the matrix-type patches. First generation TDDS were designed for deliver...
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Transdermal drug delivery has many potential advantages, but the skin's poorly-permeable stratum corneum blocks delivery of most drugs at therapeutic levels. Short high-voltage pulses have been used to electroporate the skin's lipid bilayer barriers and thereby deliver compounds at rates increased by as much as four orders of magnitude. Evidence that the observed flux enhancement is due to phys...
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