Abstract: A solid-state, low power microheater sensor platform that is configurable with selected metal oxide films for particular gas sensing applications is described. The sensor platform is configured by selecting a chemiresistive or catalytic material that is suitable for detecting a desired gas and then forming a porous nanostructured film on the designated surfaces of the microheater platform. Also described are methods for creating a highly porous, nanostructured metal oxide film in a controlled location from a liquid precursor using a localized heat source. By fast annealing deposited liquid precursors with the microheater, a highly porous, nanocrystalline metal oxide film can be generated in-situ and locally on the sensor platform.

Abstract: A method for creating a secure communication session between a user and an application server is provided. The method includes: providing a database associating a plurality of authorized user identifiers with a plurality of security credentials approved by the application server; assigning an IP address to the user; providing the serving gateway with the IP address and the user identifier of the user connected to the core network; checking whether the user identifier of the connected user to the core network is present in the database among the authorized user identifiers; forming a secure connection between the application server and the serving gateway using the security credential associated to the authorized user identifier of the user connected to the core network; and forwarding all packets from the application network addressed to the user via the secure connection to the user and vice versa.

Abstract: A method for creating a secure communication session between a user and an application server is provided. The method includes: providing a database associating a plurality of authorized user identifiers with a plurality of security credentials approved by the application server; assigning an IP address to the user; providing the serving gateway with the IP address and the user identifier of the user connected to the core network; checking whether the user identifier of the connected user to the core network is present in the database among the authorized user identifiers; forming a secure connection between the application server and the serving gateway using the security credential associated to the authorized user identifier of the user connected to the core network; and forwarding all packets from the application network addressed to the user via the secure connection to the user and vice versa.

Abstract: A solid-state, low power microheater sensor platform that is configurable with selected metal oxide films for particular gas sensing applications is described. The sensor platform is configured by selecting a chemiresistive or catalytic material that is suitable for detecting a desired gas and then forming a porous nanostructured film on the designated surfaces of the microheater platform. Also described are methods for creating a highly porous, nanostructured metal oxide film in a controlled location from a liquid precursor using a localized heat source. By fast annealing deposited liquid precursors with the microheater, a highly porous, nanocrystalline metal oxide film can be generated in-situ and locally on the sensor platform.

Abstract: In exemplary embodiments, there is provided a scalable process for producing supercapacitor electrodes with very high specific capacitance and specific energy density, and very high capacitance retention after thousands of charge discharge cycles. The electrode material consists of a thin, electrically conductive carbon coating deposited onto nanoporous silicon nanowires. The coating prevents degradation of the silicon nanowires in aqueous solutions, while leaving the pore area fully accessible, enabling application as a supercapacitor electrode with the highest capacitance per projected area to date. The nanowires also are of use as a water splitting electrode and aqueous fuel cell electrode.

Abstract: A method of depositing silicon carbide on a substrate, including placing a substrate in a low pressure chemical vapor deposition chamber; flowing a single source precursor gas containing silicon and carbon into the chamber; maintaining the chamber at a pressure not less than approximately 5 mTorr; and maintaining the substrate temperature less than approximately 900° C. The Method also includes a method for depositing a nitrogen doped silicon carbide by the addition of nitrogen containing gas into the chamber along with flowing a single source precursor gas containing silicon and carbon into the chamber.

Abstract: Coatings of dialkylsilyloxy groups are applied to water-wettable surfaces by chemical vapor deposition using dihalodialkylsilanes with short-chain alkyl groups. Some of the surfaces which will benefit from the application of these coatings are hydroxyl-terminated silicon surfaces of microelectromechanical systems, nanoelectromechanical systems, and biomicroelectromechanical systems, while surfaces of other chemistries will benefit as well. When applied to a microstructure on an MEMS surface, the coating reduces stiction in the microstructure. The use of the vapor phase as a deposition medium facilitates the deposition process and permits close control over the reaction conditions and the characteristics of the resulting coating.