The disclosure describes poly(β-thioester) polymers and polymeric nanoparticles, pharmaceutical compositions comprising these materials, their use in the treatment of cancer and infectious disease, and machine learning methods for identifying and selecting them.

A particulate, modified release barrier coated drug-cation exchange resin complex comprising a core composed of a drug complexed with a pharmaceutically acceptable ion-exchange resin is provided. Methods of making and products containing this coated complex are described.

Compounds useful as biologically active compounds are disclosed. The compounds have the following structure (I): or a stereoisomer, tautomer or salt thereof, wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, L.sup.a, L.sup.b, L.sup.1, L.sup.2, L.sup.3, M, m, and n are as defined herein. Methods associated with preparation and use of such compounds is also provided.

##STR00001##

Compounds useful as biologically active compounds are disclosed. The compounds have the following structure (I): or a stereoisomer, tautomer or salt thereof, wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, L, L.sup.1, L.sup.2, M and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.

##STR00001##

The present invention concerns a complex comprising an active agent, a polymer and an iron oxide nanoparticle. The complex may also comprise an active agent. Also described are methods of releasing an active agent from the complex, for instance by irradiating the complex with radio waves. Also described are compositions and articles comprising the complex. Also described are methods of therapy and particularly methods of treatment of cancer involving the complex described herein. In addition, the invention concerns a polymer which is particularly useful in preparing the complex described herein. The polymer is capable of undergoing a phase change at a predetermined temperature, such as 39-42° C. In one embodiment, the polymer is a copolymer of N-isopropylacrylamide, acrylic acid and acrolein. In another embodiment, the polymer is a copolymer of N-isopropylacrylamide acrylamide and allyl mercaptan.

The present invention concerns a complex comprising an active agent, a polymer and an iron oxide nanoparticle. The complex may also comprise an active agent. Also described are methods of releasing an active agent from the complex, for instance by irradiating the complex with radio waves. Also described are compositions and articles comprising the complex. Also described are methods of therapy and particularly methods of treatment of cancer involving the complex described herein. In addition, the invention concerns a polymer which is particularly useful in preparing the complex described herein. The polymer is capable of undergoing a phase change at a predetermined temperature, such as 39-42° C. In one embodiment, the polymer is a copolymer of N-isopropylacrylamide, acrylic acid and acrolein. In another embodiment, the polymer is a copolymer of N-isopropylacrylamide acrylamide and allyl mercaptan.

An orally administrable drug powder composition which forms a gastro-retentive RAFT having at least two trigger pulses is provided. The composition contains, at a minimum, (a) at least one GHB drug in a first pulse release which releases in less than about 3 hours; (b) at least one GHB drug in a delayed trigger release form; (c) at least one non-toxic gas generating agent; and (d) a RAFT system, wherein following oral ingestion, the composition provides a self-assembling gastro-retentive RAFT having entrapped therein, the at least one drug of (a) and (b) and the gas generated in situ by the non-toxic gas generating agent, thereby providing a floating gastro-retentive RAFT having a dual pulse system wherein at least the second pulse is a trigger pulse and which retains the at least one GHB drug in the stomach for at least about 3 hours.

An orally administrable drug powder composition which forms a gastro-retentive RAFT having at least two trigger pulses is provided. The composition contains, at a minimum, (a) at least one drug in an immediate release pulse release form; (b) at least one drug in a delayed trigger release form; (c) at least one non-toxic gas generating agent and (d) a RAFT system, wherein following oral ingestion, the composition provides a self-assembling gastro-retentive RAFT having entrapped therein, the at least one drug of (a) and (b) and the gas generated in situ by the non-toxic gas generating agent, thereby providing a floating gastro-retentive RAFT having a dual pulse system wherein at least the second pulse is a trigger pulse and which retains the at least one drug in the stomach for at least about 3 hours, provided that the composition does not include a gamma hydroxybutyrate and its salts, hydrates, tautomers, or solvates, or complexes thereof.

A recombinant coronavirus vaccine is provided. Methods of making and delivering the coronavirus vaccine also are provided. A microneedle array is provided, along with methods of making and using the microneedle array.

A recombinant coronavirus vaccine is provided. Methods of making and delivering the coronavirus vaccine also are provided. A microneedle array is provided, along with methods of making and using the microneedle array.