Disclosed are a composite nanomaterial based on a metal-organic framework (MOF) material loaded with horseradish peroxidase (HRP) and a preparation method and use thereof. The composite nanomaterial based on the MOF material loaded with HRP includes a hafnium-based MOF material and HRP loaded thereon, where the hafnium-based MOF material is formed by self-assembly of 2′-amino-1,1′:4,1″-terphenyl-4,4″-dicarboxylic acid and hafnium ions through a coordination bond.

The present inventions provides drug-drug conjugates, drug-porphyrin conjugates, nanoparticles of the conjugates, as well as modified nanoparticles having PEGylated exteriors or encapsulated by red blood cell vesicles. The conjugates, nanoparticles and nanocarriers are useful for treating cancers and other diseases, as well as for imaging diseased tissue or organs.

The present invention generally relates to particles such as nanoparticles and, in particular, to targeted nanoparticles. In some cases, the particles may have a targeting moiety that is inhibited from recognizing a target, for example, by being positioned within the particle at an internal location. The application of a stimulus, such as light, may allow the targeting moiety to interact externally of the particle. Accordingly, the particles may be targeted to specific locations using the application of a suitable stimulus. For instance, in one embodiment, particles containing cell-penetrating peptides attached via a first attachment and a second attachment containing a photocleavable entity may be administered to a subject, and light may be applied, e.g., to the eye, to cleave the photocleavable entity. However, despite the cleavage, the peptides remain associated with the particle via the first attachment, and thus, the particles may be able to penetrate cells within the eye due to peptides. Other aspects are generally directed to methods of making or using such particles, kits involving such particles, or the like.

The present application provides a method for preparing a hydrogel and the obtained hydrogel. The method including: forming a first part by mixing a first single-stranded nucleotide with a first liposome, and forming a second part by mixing a second single-stranded nucleotide with a second liposome, wherein the first single-stranded nucleotide and the second single-stranded nucleotide have complementary sticky ends; forming a hydrogel by mixing the first part and the second part.

In an embodiment is provided a polymer that includes a plurality of N-J-N or N—C—S repeating units, wherein each J is independently a carbon atom, an alkyl group, or an aryl group; a plurality of hydrophilic groups bonded with the repeating units; and a plurality of hydrophobic groups bonded with the hydrophilic groups and the repeating units. In another embodiment is provided hydrogels of such polymers. The hydrogels may be used as delivery vehicles for various payloads. In another embodiment is provided methods of forming such polymers.

Aspects of the invention described herein include a hydrogel prodrug and methods of making a hydrogel prodrug for drug delivery. Also contemplated are methods of treating, inhibiting, ameliorating or inhibiting a disease or disorder. Without being limiting, the methods for treatment can be directed to a cancer, HIV, a virus, pain, a bacterial infection, a neurological disorder, hemorrhaging, multiple sclerosis, diabetes, high blood pressure, Alzheimer's, or inhibiting a fungal growth in a subject in need.

An immunogenic composition forming a vaccine includes a nanoparticle delivery system comprising at least a nanoparticle, wherein the at least a nanoparticle comprises a lipid layer exterior including a plurality of lipids, cholesterol, and a primary alkyl amine including a positively charged amino group head and at least a carbon tail and an antigen incorporated in the at least a nanoparticle, wherein the antigen comprises a nucleic acid encoding a protein from a coronavirus.

A medical device includes a body defining an exterior surface, and a coating including a therapeutic agent-containing nanoparticle disposed on the exterior surface of the medical device. The nanoparticle may include a brush-arm star polymer. The therapeutic agent may be paclitaxel.

A method for the systemic delivery of a polypeptide within a subject is provided by creating genetically modified skin cells via topical introduction of a genetically engineered virus which delivers a nucleic acid encoding a therapeutic polypeptide for expression by the skin cells, wherein the expressed therapeutic polypeptide is secreted by the skin cells and is introduced into the circulatory system of the subject.

The present invention provides methods, compositions, systems, and kits comprising nano-satellite complexes and/or serum albumin carrier complexes, which are used for modulating antigen-specific immune response (e.g., enhancing anti-tumor immunity). In certain embodiments, the nano-satellite complexes comprise: a) a core nanoparticle complex comprising a biocompatible coating surrounding a nanoparticle core; b) at least one satellite particle attached to, or absorbed to, the biocompatible coating; and c) an antigenic component conjugated to, or absorbed to, the at least one satellite particle component. In certain embodiments, the complexes further comprise: d) an type I interferon agonist agent. In some embodiments, the serum albumin complexes comprise: a) at least part of a serum albumin protein, b) an antigenic component conjugated to the carrier protein, and c) a type I interferon agonist agent.