Abstract: Air flow systems, devices and methods for monitoring airborne agents include airborne agent collectors. Airborne agent collectors for collecting and detecting the presence and/or identification of an airborne agent(s) include a soluble and hydrophilic polycaprolactone (PCL) that has been treated with a base (e.g., a base having a pH greater than 8 (e.g., NaOH, NaHCO3, KOH, Na2CO3, and CA(OH)2) and in some embodiments, also treated with a neutralizing agent for increasing hydrophilicity. Detection and identification of airborne agents captured by an airborne agent collector can be performed using any suitable analytical protocols. Such protocols are well known in the art, and include nucleic acid assays, protein assays (e.g., mass spectrometry), and bioassays (e.g., in vitro and in vivo assays). The airborne agent collectors can be used for the detection and identification of nucleic acid from cells or organisms of any type (e.g., viruses, bacteria, fungi) in fixed structures (e.g.

Abstract: Air flow systems, devices and methods for monitoring airborne agents include airborne agent collectors. Airborne agent collectors for collecting and detecting the presence and/or identification of an airborne agent(s) include a soluble and hydrophilic polycaprolactone (PCL) that has been treated with a base having a pH greater than 8 and in some embodiments, also treated with a neutralizing agent for increasing hydrophilicity. Detection and identification of airborne agents captured by an airborne agent collector can be performed using any suitable analytical protocols. Such protocols include nucleic acid assays, protein assays, and bioassays. The airborne agent collectors can be used for the detection and identification of nucleic acid from cells or organisms of any type in fixed structures and in mobile, portable devices or machines.

Abstract: Compositions, films, collection devices, apparatuses, kits and methods related to biologic analyte collection and analysis include thin films of modified polycaprolactone. Methods of production and use thereof are described herein. The films, compositions, collection devices, kits and methods can be used for collection of fingerprints for both image capture and nucleic acid extraction and analysis.

Abstract: Compositions, films, collection devices, apparatuses, kits and methods related to biologic analyte collection and analysis include thin films of modified polycaprolactone. Methods of production and use thereof are described herein. The films, compositions, collection devices, kits and methods can be used for collection of fingerprints for both image capture and nucleic acid extraction and analysis.

Abstract: Compositions, films, collection devices, apparatuses, kits and methods related to biologic analyte collection and analysis include thin films of modified polycaprolactone. Methods of production and use thereof are described herein. The films, compositions, collection devices, kits and methods can be used for collection of fingerprints for both image capture and nucleic acid extraction and analysis.

Abstract: Air flow systems, devices and methods for monitoring airborne agents include airborne agent collectors. Airborne agent collectors for collecting and detecting the presence and/or identification of an airborne agent(s) include a soluble and hydrophilic polycaprolactone (PCL) that has been treated with a base (e.g., a base having a pH greater than 8 (e.g., NaOH, NaHCO3, KOH, Na2CO3, and CA(OH)2) and in some embodiments, also treated with a neutralizing agent for increasing hydrophilicity. Detection and identification of airborne agents captured by an airborne agent collector can be performed using any suitable analytical protocols. Such protocols are well known in the art, and include nucleic acid assays, protein assays (e.g., mass spectrometry), and bioassays (e.g., in vitro and in vivo assays). The airborne agent collectors can be used for the detection and identification of nucleic acid from cells or organisms of any type (e.g., viruses, bacteria, fungi) in fixed structures (e.g.

Abstract: Compositions, films, collection devices, apparatuses, kits and methods related to biologic analyte collection and analysis include thin films of modified polycaprolactone. Methods of production and use thereof are described herein. The films, compositions, collection devices, kits and methods can be used for collection of fingerprints for both image capture and nucleic acid extraction and analysis.

Abstract: Collection devices, kits and methods related to sample collection and analysis can be used to collect and store samples (e.g., biological samples) from a variety of sources and optionally, for analysis of such samples (e.g., forensics analysis, medical diagnostics, etc.). Methods of production and use thereof are described herein. A device for collecting a sample (e.g., a sample including nucleic acid) includes an outer protective housing and a collection tip operably coupled to a carrier. The collection tip includes a hydrophilic and at least partially soluble material (e.g., hydrophilic and at least partially soluble polycaprolactone (PCL)) and is movable (e.g., retractable) from a first protected position within the outer protective housing to a second collecting position outside the outer protective housing.

Abstract: Collection devices, kits and methods related to sample collection and analysis can be used to collect and store samples (e.g., biological samples) from a variety of sources and optionally, for analysis of such samples (e.g., forensics analysis, medical diagnostics, etc.). Methods of production and use thereof are described herein. A device for collecting a sample (e.g., a sample including nucleic acid) includes an outer protective housing and a collection tip operably coupled to a carrier. The collection tip includes a hydrophilic and at least partially soluble material (e.g., hydrophilic and at least partially soluble polycaprolactone (PCL)) and is movable (e.g., retractable) from a first protected position within the outer protective housing to a second collecting position outside the outer protective housing.

Abstract: Compositions, films, collection devices, apparatuses, kits and methods related to biologic analyte collection and analysis include thin films of modified polycaprolactone. Methods of production and use thereof are described herein. The films, compositions, collection devices, kits and methods can be used for collection of fingerprints for both image capture and nucleic acid extraction and analysis.

Abstract: Air flow systems, devices and methods for monitoring airborne agents include airborne agent collectors. Airborne agent collectors for collecting and detecting the presence and/or identification of an airborne agent(s) include a soluble and hydrophilic polycaprolactone (PCL) that has been treated with a base (e.g., a base having a pH greater than 8 (e.g., NaOH, NaHCO3, KOH, Na2CO3, and CA(OH)2) and in some embodiments, also treated with a neutralizing agent for increasing hydrophilicity. Detection and identification of airborne agents captured by an airborne agent collector can be performed using any suitable analytical protocols. Such protocols are well known in the art, and include nucleic acid assays, protein assays (e.g., mass spectrometry), and bioassays (e.g., in vitro and in vivo assays). The airborne agent collectors can be used for the detection and identification of nucleic acid from cells or organisms of any type (e.g., viruses, bacteria, fungi) in fixed structures (e.g.

Abstract: Collection devices, kits and methods related to sample collection and analysis can be used to collect and store samples (e.g., biological samples) from a variety of sources and optionally, for analysis of such samples (e.g., forensics analysis, medical diagnostics, etc.). Methods of production and use thereof are described herein. A device for collecting a sample (e.g., a sample including nucleic acid) includes an outer protective housing and a collection tip operably coupled to a carrier. The collection tip includes a hydrophilic and at least partially soluble material (e.g., hydrophilic and at least partially soluble polycaprolactone (PCL)) and is movable (e.g., retractable) from a first protected position within the outer protective housing to a second collecting position outside the outer protective housing.

Abstract: A magnetic device is provided. The magnetic device includes a magnetic core and a conductive winding inductively coupled to the magnetic core. The conductive winding includes a first terminal segment, a second terminal segment, and an inductive segment electrically coupled in series therebetween. The first terminal segment includes a current sensing element.

Abstract: Provided herein are influenza hemagglutinin stem domain polypeptides, compositions comprising the same, vaccines comprising the same and methods of their use.

Abstract: A magnetic device is provided. The magnetic device includes a magnetic core and a conductive winding inductively coupled to the magnetic core. The conductive winding includes a first terminal segment, a second terminal segment, and an inductive segment electrically coupled in series therebetween. The first terminal segment includes a current sensing element.

Abstract: A magnetic device is provided. The magnetic device includes a magnetic core and a conductive winding inductively coupled to the magnetic core. The conductive winding includes a first terminal segment, a second terminal segment, and an inductive segment electrically coupled in series therebetween. The first terminal segment includes a current sensing element.

Abstract: A magnetic device is provided. The magnetic device includes a magnetic core and a conductive winding inductively coupled to the magnetic core. The conductive winding includes a first terminal segment, a second terminal segment, and an inductive segment electrically coupled in series therebetween. The first terminal segment includes a current sensing element.

Abstract: Provided herein are influenza hemagglutinin stem domain polypeptides, compositions comprising the same, vaccines comprising the same and methods of their use.

Abstract: The present invention is directed to an auxiliary active clamp circuit and a method of clamping a voltage of a rectifier switch associated with a power converter. The power converter includes a main active clamp circuit associated with a main power switch coupled to a primary winding of a transformer and a rectifier switch coupled to a secondary winding of the transformer. The main power switch conducts during a main conduction period of the power converter and the rectifier switch conducts during an auxiliary conduction period of the power converter. In one embodiment, the auxiliary active clamp circuit includes an auxiliary clamp capacitor, coupled across the rectifier switch, that stores a clamping voltage substantially equal to an off-state voltage of the rectifier switch.

Abstract: A gate driver and a method of driving a switch for use with a power converter having a main active clamp circuit associated with a main power switch coupled to a primary winding of a transformer and a rectifier switch coupled to a secondary winding of the transformer. The main power switch conducts during a main conduction period of the power converter and the rectifier switch conducts during an auxiliary conduction period of the power converter. In one embodiment, the gate driver includes a DC offset bias circuit, coupled to a secondary winding of the transformer, that provides a gate drive signal having a DC bias voltage to a gate terminal of the rectifier switch.