Abstract
Many delivery methods have been developed to improve the therapeutic efficacy and facilitate the clinical translation of nucleic acids-based therapeutics. We present a facile microwell array to mediate the delivery of nucleic acids carried by lipoplexes, which combines the advantages of lipoplexes as an efficient carrier system, the surface mediated delivery, and the control of surface topography. This method shows much higher transfection efficiency than conventional transfection method for oligodeoxynucleotides and microRNAs, and thus significantly reduces the effective therapeutic dosages. Microwell array is also a very flexible platform. Multifunctional lipoplexes containing both nucleic acid therapeutics and imaging reagents can be easily prepared in the microwell array and efficiently delivered to cells, demonstrating its potential applications in theranostic medicine.
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