Justin W Conway

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Simple chemical modifications to oligonucleotide ends with hexaethylene glycol and hexanediol are shown to significantly increase nuclease resistance under serum conditions. The modified oligonucleotides were used to construct DNA prismatic cages in a single step and in quantitative yield. These cages further stabilize their strands towards nucleases, with(More)
Here, we introduce a 3D-DNA construction method that assembles a minimum number of DNA strands in quantitative yield, to give a scaffold with a large number of single-stranded arms. This DNA frame is used as a core structure to organize other functional materials in 3D as the shell. We use the ring-opening metathesis polymerization (ROMP) to generate block(More)
We report the anchoring of 3D-DNA-cholesterol labeled cages on spherically supported lipid bilayer membranes (SSLBM) formed on silica beads, and their addressability through strand displacement reactions, controlled membrane orientation and templated dimerization. The bilayer-anchored cages can load three different DNA-fluorophores by hybridization to their(More)
Therapeutic nucleic acids are powerful molecules for shutting down protein expression. However, their cellular uptake is poor and requires transport vectors, such as cationic polymers. Of these, poly(ethylenimine) (PEI) has been shown to be an efficient vehicle for nucleic acid transport into cells. However, cytotoxicity has been a major hurdle in the(More)
Long-range ordering of DNA crossover tiles with blunt ends on lipid bilayers is investigated using atomic force microscopy. "Blunt-ended" tiles do not have single-stranded complementary ends, and thus instead of assembling via base-pairing, they can interact by π-stacking of their duplex ends. This work demonstrates that the balance of base π-stacking(More)
RNA interference (RNAi) is a powerful therapeutic strategy that induces gene silencing by targeting disease-causing mRNA and can lead to their removal through degradation pathways. The potential of RNAi is especially relevant in cancer therapy, as it can be designed to regulate the expression of genes involved in all stages of tumor development (initiation,(More)
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