Abstract: A method for manufacturing an implantable device is provided. The method includes laser nano-texturing a titanium surface. The method further includes applying an aqueous silver ion solution to form a silver ion complex on the nano-textured titanium surface. The method also includes reducing, using laser-assisted photocatalytic reduction, the silver ion complex to silver ion particles which are immobilized on the nano-textured titanium surface.

Abstract: The present disclosure relates to a novel oxygen-generating biodegradable mesh material, and to methods of making and using the novel oxygen-generating biodegradable mesh material. More specifically, a novel surgical mesh has been developed, wherein the surgical mesh has a flexible basic structure and comprises a plurality of pores, wherein the surgical mesh has a first face and a second opposite face, wherein the surgical mesh is made of a substantially homogeneous material comprising a biodegradable polymeric material and an oxygen-generating material.

Abstract: A medical patch may include a flexible substrate and a plurality of water-soluble microneedles extending from a surface of the substrate. The water-soluble microneedles may include polyvinylpyrrolidone (PVP) and calcium peroxide (CPO). Application of the medical patch to a wound causes the PVP to dissolve and the CPO to interact with the water and form hydrogen peroxide and oxygen.

Abstract: A batteryless, chipless, sensor is disclosed which includes a substrate, at least two conductive strips disposed on the substrate, a passivation layer encasing the substrate and the at least two conductive strips, wherein the conductive strips are adapted to respond to an interrogation signal from a reader having a first polarization, with a response signal at a second polarization different than the first polarization.

Abstract: A system for non-invasive urinary activity monitoring may include a sticker that attaches to a urine bag. The sticker may include a metal layer shaped as an antenna. A device may cause a network analyzer to send a signal in a direction of the urine bag. The device may detect a shift in a resonant frequency of the antenna. The device may measure, based on the change in resonant frequency, an amount of fluid in the container. The device may measure, based on a change in the resonant peak amplitude, the conductivity of the fluid in the container.

Abstract: A printed radiation sensor that includes a substrate, an interdigitated electrode, and a conductive polymeric film. The interdigitated electrode including a first electrode with a plurality of first electrode digits and a second electrode with a plurality of second electrode digits. The interdigitated electrode disposed on the substrate. The conductive polymeric film including a blend of poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and polyvinyl alcohol (PVA). The PEDOT:PSS is configured to provide an electrically conductive medium. The PVA is configured to provide ductility and stability of the printed radiation sensor. Upon radiation exposure, the PVA is further configured to crosslink within a material matrix of the printed radiation sensor militating against the recombination of chain scission by forming a semi-interpenetrating polymer network (SIPN) with the PEDOT:PSS to provide an enhanced and stable impedance reading.

Abstract: A method of manufacturing a copper oxide (CuxO) structure onto a Copper (Cu) surface by fabricating an electroactive hierarchical CuxO structure directly onto the Cu surface by laser-induced oxidation (LIO). The generated heat from the laser source provides energy for the oxidation of the Cu surface in the presence of atmospheric oxygen. The electroactive hierarchical CuxO structure is a binder-free nanotextured structure. The electroactive hierarchical CuxO structure may be used as a glucose sensor.

Abstract: A collagen-fibronectin-based method enables the production of tumors of centimeter size with recognizable pathological traits. The method supports reproducing tumor heterogeneity with preinvasive and invasive phenotypes and stacking of tumor portions using a paper-scaffold with 80 ?m-punched holes for larger nodule creation and easy separation of tumor portions for analysis. Macrotumors are convenient for testing drug delivery and therapeutic tools that necessitate a minimum tumor size relevant to in vivo.

Abstract: A system may receive a package previously irradiated for sterilization. The package may have a sensor comprising a reference tag and sensing tag at least partially coated with a material comprising poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and Polyurethan (PU). The system may scan the sensing tag and the reference tag. The system may determine, based on radio frequency (RF) signals reflected from the sensing tag and reference tag, the sensor is exposed to radiation. The system may output a quality measure indicative of the sensor being exposed to radiation.

Abstract: A printed radiation sensor that includes a substrate, an interdigitated electrode, and a conductive polymeric film. The interdigitated electrode including a first electrode with a plurality of first electrode digits and a second electrode with a plurality of second electrode digits. The interdigitated electrode disposed on the substrate. The conductive polymeric film including a blend of poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and polyvinyl alcohol (PVA). The PEDOT:PSS is configured to provide an electrically conductive medium. The PVA is configured to provide ductility and stability of the printed radiation sensor. Upon radiation exposure, the PVA is further configured to crosslink within a material matrix of the printed radiation sensor militating against the recombination of chain scission by forming a semi-interpenetrating polymer network (SIPN) with the PEDOT:PSS to provide an enhanced and stable impedance reading.

Abstract: A method of transducing electrical energy to sound is disclosed which includes providing a transducer, the transducer includes lead zirconate titanate (PZT) particles mixed with graphene nanoplatelets (GNPs) in a flexible substrate aligned in a first direction, forming a transducer subsystem, a first conductive protective electrode having a width and a length configured to provide a first electrical connectivity to an external circuit, and a second conductive protective electrode having the width and the length and configured to provide a second electrical connectivity to the external circuit, wherein the transducer subsystem is sandwiched between the first and second conductive protective electrodes, and providing an external circuit configured to provide an electrical signal to the first and second conductive protective electrodes to thereby transduce the electrical signal to sound.

Abstract: A wearable accessory capable of communicating data to actuators or from sensors is disclosed. The wearable accessory includes a conductor wire disposed in a moldable medium according to a predetermined pattern, the moldable medium being an electrically insulating material, the conductor wire terminating at an input and an output.

Abstract: A humidity sensor may include a metalized substrate comprising a laser ablated portion and a remaining metal portion. The remaining metal portion may include a spiral inductor and an interdigitated capacitor. The interdigitated capacitor may be coupled in parallel with the spiral inductor. The interdigitated capacitor may be centrally positioned with respect to the spiral inductor and surrounded by spirals of the spiral inductor. The spiral inductor and interdigitated capacitor may be formed by selectively ablating the metallized substrate to define the inductor and capacitor.

Abstract: A method for manufacturing an implantable device is provided. The method includes laser nano-texturing a titanium surface. The method further includes applying an aqueous silver ion solution to form a silver ion complex on the nano-textured titanium surface. The method also includes reducing, using laser-assisted photocatalytic reduction, the silver ion complex to silver ion particles which are immobilized on the nano-textured titanium surface.

Abstract: An electrochemical biosensor for detection of a calprotectin antigen in a sample solution. The electrochemical biosensor includes a reference electrode, a counter electrode, and a working electrode. The working electrode includes a surface coated with an anti-calprotectin antibody that binds to the calprotectin antigen in the sample solution. The electrochemical biosensor detects the concentration of the calprotectin antigen in the sample solution based on a resistance change at the surface of the working electrode.

Abstract: An ozone generation apparatus includes a flexible and porous gas permeable treatment patch configured to be releasably secured to a user's body such that an exterior surface of the treatment patch directly contacts skin on the user's body, and an ozone generating unit fluidically coupled to the treatment patch and configured to provide a flow of ozone through pores in the treatment patch toward and out through the exterior surface of the treatment patch. In certain embodiments, the patch may be used for combination therapies in which both ozone and antibiotics are simultaneously applied to the user's body.

Abstract: A method of transducing electrical energy to sound is disclosed which includes providing a transducer, the transducer includes lead zirconate titanate (PZT) particles mixed with graphene nanoplatelets (GNPs) in a flexible substrate aligned in a first direction, forming a transducer subsystem, a first conductive protective electrode having a width and a length configured to provide a first electrical connectivity to an external circuit, and a second conductive protective electrode having the width and the length and configured to provide a second electrical connectivity to the external circuit, wherein the transducer subsystem is sandwiched between the first and second conductive protective electrodes, and providing an external circuit configured to provide an electrical signal to the first and second conductive protective electrodes to thereby transduce the electrical signal to sound.

Abstract: A batteryless, chipless, sensor is disclosed which includes a substrate, at least two conductive strips disposed on the substrate, a passivation layer encasing the substrate and the at least two conductive strips, wherein the conductive strips are adapted to respond to an interrogation signal from a reader having a first polarization, with a response signal at a second polarization different than the first polarization.

Abstract: A batteryless, chipless, sensor is disclosed which includes a substrate, at least two conductive strips disposed on the substrate, a passivation layer encasing the substrate and the at least two conductive strips, wherein the conductive strips are adapted to respond to an interrogation signal from a reader having a first polarization, with a response signal at a second polarization different than the first polarization.

Abstract: A method of manufacturing a copper oxide (CuxO) structure onto a Copper (Cu) surface by fabricating an electroactive hierarchical CuxO structure directly onto the Cu surface by laser-induced oxidation (LIO). The generated heat from the laser source provides energy for the oxidation of the Cu surface in the presence of atmospheric oxygen. The electroactive hierarchical CuxO structure is a binder-free nanotextured structure. The electroactive hierarchical CuxO structure may be used as a glucose sensor.