Spherical Nucleic Acids as a Divergent Platform for Synthesizing RNA–Nanoparticle Conjugates through Enzymatic Ligation
نویسندگان
چکیده
Herein, we describe a rapid, divergent method for using spherical nucleic acids (SNAs) as a universal platform for attaching RNA to DNA-modified nanoparticles using enzyme-mediated techniques. This approach provides a sequence-specific method for the covalent attachment of one or more in vitro transcribed RNAs to a universal SNA scaffold, regardless of RNA sequence. The RNA-nanoparticle constructs are shown to effectively knock down two different gene targets using a single, dual-ligated nanoparticle construct.
منابع مشابه
Modeling the crystallization of spherical nucleic acid nanoparticle conjugates with molecular dynamics simulations.
We use molecular dynamics simulations to study the crystallization of spherical nucleic-acid (SNA) gold nanoparticle conjugates, guided by sequence-specific DNA hybridization events. Binary mixtures of SNA gold nanoparticle conjugates (inorganic core diameter in the 8-15 nm range) are shown to assemble into BCC, CsCl, AlB(2), and Cr(3)Si crystalline structures, depending upon particle stoichiom...
متن کاملIntracellular Fate of Spherical Nucleic Acid Nanoparticle Conjugates
Spherical nucleic acid (SNA) nanoparticle conjugates are a class of bionanomaterials that are extremely potent in many biomedical applications. Their unique ability to enter multiple mammalian cell types as single-entity agents arises from their novel three-dimensional architecture, which consists of a dense shell of highly oriented oligonucleotides chemically attached typically to a gold nanop...
متن کاملRelationships between Poly(ethylene glycol) Modifications on RNA–Spherical Nucleic Acid Conjugates and Cellular Uptake and Circulation Time
Two synthetic approaches that allow one to control PEG content within spherical nucleic acids (SNAs) have been developed. One approach begins with RNA-modified gold nanoparticles followed by a backfill of PEG 2K alkanethiols, and the other involves co-adsorption of the two entities on a gold nanoparticle template. These two methods have been used to explore the role of PEG density on the chemic...
متن کاملRNA nanotechnology breakthrough for targeted release of RNA-based drugs using cell-based aptamers
Nucleic acids play different roles besides storing information and proteins coding. For example, single-stranded nucleic acids can fold into complicated structures with capability of molecular detection, catalyzing bioreactions and therapy. The development of RNA-based therapies has been rapidly progressed in the recent years. RNA aptamers are biomolecules with a size of 10 to 50 nm that can be...
متن کاملSpecific and sensitive detection of nucleic acids and RNases using gold nanoparticle-RNA-fluorescent dye conjugates.
Gold nanoparticles were modified with RNA and utilized to detect specific DNA sequences and various RNA nucleases.
متن کامل