The present disclosure generally relates to therapeutic nanoparticles. Exemplary nanoparticles disclosed herein may include about 0.1 to about 40 weight percent of a therapeutic agent and about 10 to about 90 weight percent a diblock poly(lactic) acid-poly(ethylene)glycol copolymer or a diblock poly(lactic)-co-poly(glycolic) acid-poly(ethylene)glycol copolymer, wherein the diblock poly(lactic) acid-poly(ethylene)glycol copolymer comprises poly(lactic) acid having a number average molecule weight of about 30 kDa to about 90 kDa or the diblock poly(lactic)-co-poly(glycolic) acid-poly(ethylene)glycol copolymer comprises poly(lactic)-co-poly(glycolic) acid having a number average molecule weight of about 30 kDa to about 90 kDa.

Provided herein are oligomeric compounds with conjugate groups. In certain embodiments, the oligomeric compounds are conjugated to N-Acetylgalactosamine.

A hemostatic composition is provided. The hemostatic composition includes a hemostatically effective amount of a hemostatic agent that includes a nanoparticle and a polyphosphate polymer attached to the nanoparticle. Also provided are medical devices and methods of use to promote blood clotting.

The present invention relates to vaccines comprising at least one mRNA encoding at least one antigen for use in the treatment of a disease in newborns and/or infants, preferably exhibiting an age of not more than 2 years, preferably of not more than 1 year, more preferably of not more than 9 months or even 6 months, wherein the treatment comprises vaccination of the newborn or infant and eliciting an immune response in said newborn or infant. The present invention is furthermore directed to kits and kits of parts comprising such a vaccine and/or its components and to methods applying such a vaccine or kit.

The present invention relates to vaccines comprising at least one mRNA encoding at least one antigen for use in the treatment of a disease in newborns and/or infants, preferably exhibiting an age of not more than 2 years, preferably of not more than 1 year, more preferably of not more than 9 months or even 6 months, wherein the treatment comprises vaccination of the newborn or infant and eliciting an immune response in said newborn or infant. The present invention is furthermore directed to kits and kits of parts comprising such a vaccine and/or its components and to methods applying such a vaccine or kit.

Poly(amine-co-ester) polymers, methods of forming active agent-load polyplexes and particles therefrom, and methods of using them for delivery of nucleic acid agents with optimal uptake have been developed. Examples demonstrate critical molecular weights in combination with exposed carboxylic and/or hydroxyl groups, and methods of making. Typically, the compositions are less toxic, more efficient at drug delivery, or a combination thereof compared to a control other transfection reagents. In some embodiments, the compositions are suitable for in vivo delivery, and can be administered systemically to a subject to treat a disease or condition. For poly(amine-co-ester) polymers with specific amine or hydroxyl group containing end-groups in admixture with PEGylated poly(amine-co-ester) polymers, in vivo delivery to the lung by inhalation has been shown.

Disclosed are immunogenic constructs including: a nanoparticle; a cationic polymer electrostatically bound to an exterior surface of the nanoparticle and a stabilizer bound to the cationic polymer or the exterior surface of the nanoparticle; and an antigen or antigen producing agent. Optionally, the constructs may include adjuvant and/or one or more functional oligonucleotide(s) (e.g., siRNA or pDNA). Also disclosed are methods of using the provided immunogenic constructs for co-delivering an adjuvant, antigen, and optionally siRNA to a cell, inducing immune response in a subject, and treating or preventing an infectious disease in a subject.

The invention relates to materials and methods of conjugating a water soluble polymer to an oxidized carbohydrate moiety of a therapeutic protein comprising contacting the oxidized carbohydrate moiety with an activated water soluble polymer under conditions that allow conjugation. More specifically, the present invention relates to the aforementioned materials and methods wherein the water soluble polymer contains an active aminooxy group and wherein an oxime or hydrazone linkage is formed between the oxidized carbohydrate moiety and the active aminooxy group on the water soluble polymer, and wherein the conjugation is carried out in the presence of a nucleophilic catalyst.

The invention relates to materials and methods of conjugating a water soluble polymer to an oxidized carbohydrate moiety of a therapeutic protein comprising contacting the oxidized carbohydrate moiety with an activated water soluble polymer under conditions that allow conjugation. More specifically, the present invention relates to the aforementioned materials and methods wherein the water soluble polymer contains an active aminooxy group and wherein an oxime or hydrazone linkage is formed between the oxidized carbohydrate moiety and the active aminooxy group on the water soluble polymer, and wherein the conjugation is carried out in the presence of a nucleophilic catalyst.

Described herein is a nanoparticle system including a multivalent nanoparticle core having a plurality of β-hairpin peptides conjugated thereto. Also included are pharmaceutical compositions and methods of making the nanoparticle system. Further included are immunotherapy methods including administering the nanoparticle system to a subject in need thereof, such as a human cancer patient.