CRYO NANOMANIPULATOR WITH INTEGRATED GAS INJECTION
A nanomanipulator with integrated gas injection capability has been developed. The device features a 1/4" tube with an integrated thermocouple wire and two small diameter stainless steel tubes that terminate near a tungsten needle. The tungsten wire can be cooled to cryogenic temperatures via a copper braid connected to a cold finger. Thermal insulation between the tungsten needle and the 1/4" tube body is maintained via a plastic spacer to minimize thermal conduction. The two small diameter stainless steel tubes provide a means to inject gas which flows near the end of the tungsten needle. Gas flow can be controlled independently to each small diameter stainless steel tubes, allowing the flow of the same or different gases. The lateral and horizontal positioning of the small diameter stainless steel tubes relative to the tungsten wire is made via an attached jig. The design of the device allows the introduction of various gases into the focused ion beam/scanning electron microscope to facilitate the deposition of metallic or carbonaceous thin films on cryogentically-cooled surfaces
ION EXTRACTION AND FOCUSING FROM A FIELD-FREE REGION TO AN ION MOBILITY SPECTROMETER AT ATMOSPHERIC PRESSURE (iEdison No. 0685901-21-0100)
This invention was developed to improve ion movement at atmospheric pressure to enhance ion signal and reduce ion loss for mass spectrometry (MS) and ion mobility spectrometry (IMS). This invention is demonstrated with the atmospheric flow tube (AFT) and involves ion manipulation (e.g., extraction, focusing, and confinement) at atmospheric pressure. There are two components that have been observed to increase ion signal and reduce ion loss. The first is associated with combining the AFT with IMS, in which adjusting electric field gradients between the AFT and IMS improves ion extraction or focuses ions at atmospheric pressure. The second is by modifying the AFT to place a wire down the center of the length of the tube and applying either an AC or a DC voltage to this wire. Placing a square wave voltage on the wire increases ion throughput down the AFT to the detector compared to when the wire is at the same DC potential as the tube. The ability to manipulate ions is more pronounced at slower flows down the tube. Detailed description, figures, and data are provided in the attachment (Figures 1-7).
COLLECTION, RELEASE, AND DETECTION OF ANALYTES WITH POLYMER COMPOSITE SAMPLING MATERIALS
A unique fiber core sampler composition, related systems, and techniques for designing, making, and using the same are described. The sampler is used to interface with existing field instrumentation, such as Ion Mobility Spectrometer (IMS) equipment. Desired sampler characteristics include its: stiffness/flexibility; thermal mass and conductivity; specific heat; trace substance collection/release dependability, sensitivity and repeatability; thickness; reusability; durability; stability for thermal cleaning; and the like. In one form the sampler has a glass fiber core with a thickness less than 0.3 millimeter that is coated with a polymer including one or more of: polymeric organofluorine, polyimide, polyamide, PolyBenzlmidazole (PBI), PolyDiMethylSiloxane (PDMS), sulfonated tetrafluoroethylene (PFSA) and Poly(2,6-diphenyl-p-phenylene Oxide) (PPPO). Multiple polymer coatings with the same or different polymer types may be included, core/substrate surface functionalization utilized, and/or the core/substrate may be at partially filled with thermally conductive particles.
WEARABLE HEALTH MONITORING DEVICE (iEdison No. 0685901-17-0012)
Medical monitor to measure a patients shock index. To date, and to the best of our knowledge, no one has estimated a patients shock using pulseoximeters and ECG sensors.
COLLECTION, RELEASE, AND DETECTION OF ANALYTES WITH POLYMER COMPOSITE SAMPLING MATERIALS (iEdison No. 0685901-14-0005)
A unique fiber core sampler composition, related systems, and techniques for designing, making, and using the same are described. The sampler is used to interface with existing field instrumentation, such as Ion Mobility Spectrometer (IMS) equipment. Desired sampler characteristics include its: stiffness/flexibility; thermal mass and conductivity; specific heat; trace substance collection/release dependability, sensitivity and repeatability; thickness; reusability; durability; stability for thermal cleaning; and the like. In one form the sampler has a glass fiber core with a thickness less than 0.3 millimeter that is coated with a polymer including one or more of: polymeric organofluorine, polyimide, polyamide, PolyBenzlmidazole (PBI), PolyDiMethylSiloxane (PDMS), sulfonated tetrafluoroethylene (PFSA) and Poly(2,6-diphenyl-p-phenylene Oxide) (PPPO). Multiple polymer coatings with the same or different polymer types may be included, core/substrate surface functionalization utilized, and/or the core/substrate may be at partially filled with thermally conductive particles.
ION FUNNEL DEVICE
An ion funnel device is disclosed. A first pair of electrodes is positioned in a first direction. A second pair of electrodes is positioned in a second direction. The device includes an RF voltage source and a DC voltage source. A RF voltage with a superimposed DC voltage gradient is applied to the first pair of electrodes, and a DC voltage gradient is applied to the second pair of electrodes..
System and Method for Anomaly Detection
A method for decomposing a continuous variable into a collection of discrete variables for purposes of statistical modeling.
MICROFLUIDIC ELECTROCHEMICAL DEVICE AND PROCESS FOR CHEMICAL IMAGING AND ELECTROCHEMICAL ANALYSIS AT THE ELECTRODE-LIQUID INTERFACE IN-SITU
A microfluidic electrochemical device and process are detailed that provide chemical imaging and electrochemical analysis under vacuum at the surface of the electrode-sample or electrode-liquid interface in-situ. The electrochemical device allows investigation of various surface layers including diffuse layers at selected depths populated with, e.g., adsorbed molecules in which chemical transformation in electrolyte solutions occurs.