Abstract: Techniques regarding chemical compounds with antimicrobial functionality are provided. For example, one or more embodiments describe herein can comprise a monomer that can comprise a molecular backbone. The molecular backbone can comprise a bis(urea)guanidinium structure covalently bonded to a functional group, which can comprise a radical. Also, the monomer can have supramolecular assembly functionality.

Abstract: Compositions and methods regarding guanidinium functionalized polycarbonates that provide potent antimicrobial activity against multidrug resistant (MDR) bacteria, including Klebsiella pneumoniae (K. pneumoniae) are provided. According to an embodiment, an antimicrobial guanidinium-functionalized polymer is provided that comprises a hydrophobic molecular backbone with cationic guanidinium moieties respectively bound to the hydrophobic molecular backbone via butyl spacer groups. The antimicrobial guanidinium-functionalized polymer self-assembles into a micelle structure with hydrophobic residuals of the antimicrobial guanidinium-functionalized polymer buried inside the micelle structure and the cationic guanidinium moieties exposed on an external surface of the micelle structure to target pathogens.

Abstract: Techniques regarding polymers with antimicrobial functionality are provided. For example, one or more embodiments described herein can regard a polymer, which can comprise a repeating ionene unit. The repeating ionene unit can comprise a cation distributed along a degradable backbone. The degradable backbone can comprise a terephthalamide structure. Further, the repeating ionene unit can have antimicrobial functionality.

Abstract: The disclosure discloses a strain and method for producing rosmarinic acid, and belongs to the technical field of bioengineering. The disclosure constructs a recombinant cell or a combination of recombinant cells expressing 4-coumarate: CoA ligase, rosmarinic acid synthase, polyphosphate kinase 2-I (PPK2-I) and polyphosphate kinase 2-II (PPK2-II), and utilizes the recombinant cell or the combination of recombinant cells to catalyze Danshensu and caffeic acid for synthesizing rosmarinic acid. The disclosure has good industrial application prospects.

Abstract: A stimulus-responsive micellar carrier, methods that may be associated with making a stimulus-responsive micellar carrier, and methods that may be associated with using a stimulus-responsive micellar carrier are disclosed. The stimulus-responsive micellar carrier comprises a cargo molecule, and a linear block copolymer having a hydrophilic block connected to a hydrophobic block by a stimulus-responsive junction moiety. The micellar carrier can be supplied to a patient body for therapeutic purposes, such as the treatment of cancerous tissue. A method of preparing or obtaining a stimulus-responsive micellar carrier may include preparing a polyethylene glycol material having an acetal end group and then preparing a block copolymer by forming a reaction mixture including the polyethylene glycol material, a cyclic carbonate monomer, and a base.

Abstract: Techniques regarding guanidinium functionalized polylysine polymers that can have antimicrobial and/or anticancer activity are provided. For example, one or more embodiments described herein can comprise a chemical composition, which can comprise a polymer comprising a molecular backbone covalently bonded to a pendent guanidinium functional group, wherein the molecular backbone can comprise a polylysine structure.

Abstract: A stimulus-responsive micellar carrier, methods that may be associated with making a stimulus-responsive micellar carrier, and methods that may be associated with using a stimulus-responsive micellar carrier are disclosed. The stimulus-responsive micellar carrier comprises a cargo molecule, and a linear block copolymer having a hydrophilic block connected to a hydrophobic block by a stimulus-responsive junction moiety. The micellar carrier can be supplied to a patient body for therapeutic purposes, such as the treatment of cancerous tissue. A method of preparing or obtaining a stimulus-responsive micellar carrier may include preparing a polyethylene glycol material having an acetal end group and then preparing a block copolymer by forming a reaction mixture including the polyethylene glycol material, a cyclic carbonate monomer, and a base.

Abstract: Techniques regarding enhancing antimicrobial activity of antirheumatic agents by combination therapy are provided. For example, one or more embodiments described herein can regard a chemical composition comprising a polycarbonate polymer functionalized with a guanidinium functional group. The chemical composition can also comprise an antirheumatic agent, and the polycarbonate polymer can enhance an antimicrobial activity of the antirheumatic agent.

Abstract: Techniques regarding chemical compounds with antimicrobial functionality are provided. For example, one or more embodiments describe herein can comprise a monomer that can comprise a molecular backbone. The molecular backbone can comprise a bis(urea)guanidinium structure covalently bonded to a functional group, which can comprise a radical. Also, the monomer can have supramolecular assembly functionality.

Abstract: Compositions and methods regarding guanidinium functionalized polycarbonates that provide potent antimicrobial activity against multidrug resistant (MDR) bacteria, including Klebsiella pneumoniae (K. pneumoniae) are provided. According to an embodiment, an antimicrobial guanidinium-functionalized polymer is provided that comprises a hydrophobic molecular backbone with cationic guanidinium moieties respectively bound to the hydrophobic molecular backbone via butyl spacer groups. The antimicrobial guanidinium-functionalized polymer self-assembles into a micelle structure with hydrophobic residuals of the antimicrobial guanidinium-functionalized polymer buried inside the micelle structure and the cationic guanidinium moieties exposed on an external surface of the micelle structure to target pathogens.

Abstract: Techniques regarding treating one or more microbe infections with combination therapy are provided. For example, one or more embodiments described herein can comprise a method, which can comprise enhancing an antimicrobial activity of an antibiotic by a combination therapy. The combination therapy can comprise the antibiotic and a polycarbonate polymer functionalized with a guanidinium functional group.

Abstract: Antimicrobial cationic polycarbonates and polyurethanes have been prepared comprising one or more pendent guanidinium and/or isothiouronium groups. Additionally, antimicrobial particles were prepared having a silica core linked to surface groups comprising a guanidinium and/or isothiouronium group. The cationic polymers and cationic particles can be potent antimicrobial agents against Gram-negative microbes, Gram-positive microbes, and/or fungi.

Abstract: A multiple-positioning-system switching and fused calibration method and a device thereof are provided. A first sensing device generates first sensing information, and the central processor calculates the first positioning information of a current position according to the first sensing information and a starting position, and downloads map information from the cloud database. A second sensing device detects a feature object, and obtains the distance information of the feature object and the current position, to the central processor. The central processor calculates a current position in the map information, and generates second positioning information, and performs fused calculation on the first positioning information and the second positioning information according to the weight values of a weight distribution table, to generate new first positioning information to replace the first positioning information.

Abstract: In examples, a method of manufacturing a transformer device comprises providing a first magnetic member and providing a laminate member containing primary and secondary transformer windings wound around an orifice extending through the laminate member. The method further comprises positioning a build up film abutting the laminate member. The method also comprises positioning at least a portion of a second magnetic member in the orifice. The method further comprises heat pressing at least one of the first and second magnetic members such that a distance between the first and second magnetic members decreases and such that the build-up film melts, thereby producing a transformer device.

Abstract: Techniques regarding treating one or more microbe infections with combination therapy are provided. For example, one or more embodiments described herein can comprise a method, which can comprise enhancing an antimicrobial activity of an antibiotic by a combination therapy. The combination therapy can comprise the antibiotic and a polycarbonate polymer functionalized with a guanidinium functional group.

Abstract: System and methods for multimedia playback are provided. A terminal device may obtain a playback identifier of a multimedia playback device. The terminal device may send an association request to a server based on the playback identifier. The association request may enable the server to establish an association between a terminal device and the multimedia playback device. The terminal device may receive a plurality of candidate options pushed by the server. The plurality of candidate options may be pushed to the terminal device associated with the multimedia playback device when the server detects that a preset time point arrives after the multimedia playback device plays back a first media resource. The terminal device may obtain a target option selected from the plurality of candidate options. The terminal device may feedback the target option to the server to enable the server to determine a second media resource to be played back by the multimedia playback device.

Abstract: Techniques regarding enhancing antimicrobial activity of antirheumatic agents by combination therapy are provided. For example, one or more embodiments described herein can regard a chemical composition comprising a polycarbonate polymer functionalized with a guanidinium functional group. The chemical composition can also comprise an antirheumatic agent, and the polycarbonate polymer can enhance an antimicrobial activity of the antirheumatic agent.

Abstract: Techniques regarding killing of a pathogen with one or more ionene compositions having antimicrobial functionality are provided. For example, one or more embodiments can comprise a method, which can comprise contacting a Mycobacterium tuberculosis microbe with a chemical compound. The chemical compound can comprise an ionene unit. Also, the ionene unit can comprise a cation distributed along a molecular backbone. The ionene unit can have antimicrobial functionality. The method can further comprise electrostatically disrupting a membrane of the Mycobacterium tuberculosis microbe in response to the contacting.

Abstract: Techniques regarding guanidinium functionalized polylysine polymers that can have antimicrobial and/or anticancer activity are provided. For example, one or more embodiments described herein can comprise a chemical composition, which can comprise a polymer comprising a molecular backbone covalently bonded to a pendent guanidinium functional group, wherein the molecular backbone can comprise a polylysine structure.

Abstract: A method for backside metallization includes inkjet printing a pattern of nanosilver conductive ink on a first surface of a silicon wafer. The silicon wafer includes a plurality of dies. The pattern includes a clearance area along a scribe line between the dies. A laser is focused, through a second surface of the wafer, at a point between the first surface of the silicon wafer and the second surface of the silicon wafer. The second surface is opposite the first surface. The dies are separated along the scribe line.