Abstract: Compositions for oral delivery of silica nanoparticles and/or aluminosilicate nanoparticles, and methods of use thereof. The individual nanoparticles comprise a silica core or an aluminosilicate core and, optionally, polyethylene glycol (PEG) groups each disposed on a surface of the nanoparticle. In various examples, the nanoparticles have a size of about 20 nm or less. In various examples, the nanoparticles can be delivered to an individual's gastrointestinal tract, pass through the mucus layer thereof, and permeate the epithelial lining thereof. In various examples, the nanoparticles comprise various targeting, diagnostic, or therapeutic group(s) and can retain one or more said activit(ies) after delivery. Methods of oral delivery and methods of treating a disease can comprise orally administering composition(s) to an individual.

Abstract: The present disclosure provides methods of analyzing and/or purifying inorganic nanoparticles that may be functionalized with one or more dye group. Analyzing and/or purifying the inorganic nanoparticles includes utilizing liquid chromatography, such as, for example, high performance liquid chromatography (HPLC). Methods of the present disclosure may be used to determine the location of one or more dye groups on and/or in the inorganic nanoparticles. The present disclosure also provides methods of making inorganic nanoparticles and compositions of inorganic nanoparticles.

Abstract: Silica nanorings, methods of making silica nanorings, and uses of silica nanorings. The silica nanorings may be surface selective functionalization, with one or more polyethylene glycol (PEG) group(s), one or more display group(s), one or more functional group(s), or a combination thereof. The silica nanorings may have a size of 5 to 20 nm. The silica nanorings may be made using micelles. The absence or presence of the micelles during PEGylation and/or functionalization allows for the surface selective functionalization. The silica nanorings may be used in various diagnostic and/or treatment methods.

Abstract: Silica nanorings, methods of making silica nanorings, and uses of silica nanorings. The silica nanorings may be PEGylated. The silica nanorings may be surface functionalized, which may be surface selective functionalization, with one or more polyethylene glycol (PEG) group(s), one or more display group(s), one or more functional group(s), or a combination thereof. The silica nanorings may have a size of 5 to 20 nm. The silica nanorings may be made using micelles. The absence or presence of the micelles during PEGylation and/or functionalization allows for surface selective functionalization. The silica nanorings may be used in various diagnostic and/or treatment methods.

Abstract: The present disclosure provides methods of analyzing and/or purifying inorganic nanoparticles that may be functionalized with one or more dye group. Analyzing and/or purifying the inorganic nanoparticles includes utilizing liquid chromatography, such as, for example, high performance liquid chromatography (HPLC). Methods of the present disclosure may be used to determine the location of one or more dye groups on and/or in the inorganic nanoparticles. The present disclosure also provides methods of making inorganic nanoparticles and compositions of inorganic nanoparticles.