摘要:
Provided herein are monomers incorporating folate or other targeting agent, polymers prepared therefrom, polymers prepared therefrom having a therapeutic agent covalently coupled thereto, as well as micelles and therapeutic compositions thereof.
摘要:
Provided herein are polymeric carriers suitable for the delivery of polynucleotides (e.g. oligonucleotides) and/or other therapeutic agents into a living cell.
摘要:
A cleaning apparatus having a housing, a motor, a transmission, an attachment stud, and a cleaning attachment removably connected to the stud. The stud has a leading section with a general triangular block shape and three generally triangular shaped cantilevered tips. The stud is received through a generally triangular shaped aperture in the cleaning attachment. The apparatus can reverse the normal rotation direction of the stud to allow the cleaning attachment to quickly disconnect from the stud without a user having to hold the cleaning attachment.
摘要:
The present invention is directed to a process and apparatus wherein municipal refuse, and many other types of solid waste, are disposed of in a landfill repository that maintains them in a dry state indefinitely. This eliminates most environmental and many cost problems. The principal design feature of this landfill is its cellular internal structure, which has rows of contiguous, rectangular water- and gas-tight cells that are built on top of one another to form a high, multi-layered structure. These cells are simultaneously constructed and filled with solid waste in a series of short, incremental wall berm construction and filling steps on a one-cell-at-a-time basis in the top layer of the landfill. The sides of the structure and the tops of the cells in the top layer are continuously protected from rain infiltration by impervious covers, and uncontaminated rain waters, leachates, leakage, and gases are separately withdrawn from the system on a cell-by-cell basis by an internal plumbing and monitoring system. Biodegradation is used in cells in the top layer to produce methane gas.
摘要:
A cyclonic agglomerator is used in the inlet line for quenched carbon black smoke into a bag house to increase the efficiency of carbon black processing.
摘要:
Polymeric compounds having spatially controlled bioconjugation sites are described. Functionalization is achieved by selective co-terminal chain extension of polymer chains by radical polymerization, such as reversible addition-fragmentation chain transfer (RAFT) polymerization.
摘要:
A fixed-volume injector assembly having backflush capability is useful for injecting a sample into a gas chromatograph. The injector assembly has a sampling mode of operation, an injection mode of operation and a backflush mode of operation. In the sampling mode, sample is drawn into sampling chamber (11). In the injection mode, sample is injected into an injection channel which conducts the sample to a destination stream. In the backflush mode, carrier fluid flows through the injector assembly in the opposite direction. The injector assembly is designed to connect to precolumn (28) and analytical column (20) so that, in the backflush mode, precolumn (28) is backflushed. Advantages of the injector assembly include the ability to pressurize the sample before injection and to use a single carrier fluid source. In addition, the flow channels of the injector assembly are readily miniaturized.
摘要:
The present invention provides for the purification from native sources or the cloning and expression of a variant form of platelet factor 4 and also provides recombinant DNA vectors and methods for the expression and recovery of the platelet factor 4 variant. Also provided are compositions and methods for modulating immune responses in mammals comprising immunomodulating effective amounts of platelet factor 4 variant.