Ultrathin and Robust Micro–Nano Composite Coating for Implantable Pressure Sensor Encapsulation

Composite 5A zeolite with ultrathin porous TiO2 coating for selective gas adsorption.

A composite zeolite adsorbent was prepared by conformally depositing an ultrathin porous TiO2 coating on the external surface of the 5A zeolite by molecular layer deposition (MLD) and subsequent calcination. The composite adsorbent showed significantly improved ideal adsorption selectivity for CO2-CH4, CO2-N2 and propylene-propane.

An Implantable Intravascular Pressure Sensor for a Ventricular Assist Device

The aim of this study is to investigate the intravascular application of a micro-electro-mechanical system (MEMS) pressure sensor to directly measure the hemodynamic characteristics of a ventricular assist device (VAD). A bioand hemo-compatible packaging strategy is implemented, based on a ceramic thick film process. A commercial sub-millimeter piezoresistive sensor is attached to an alumina su...

Mechanical Coating Technique for Composite Films and Composite Photocatalyst Films

Nanoarray-enhanced Implantable Intraocular Pressure Sensor with Remote Optical Readout

We demonstrate a compact implantable intraocular pressure sensor with remote optical readout for glaucoma research and patient management. Using broadband white light between 7801150nm, we excite the sensor’s pressure-sensitive optomechanical cavity and detect the reflected light, whose optical signature changes as a function of intraocular pressure. When measured inside an artificial pressure ...

Miniature all-glass robust pressure sensor.

This paper describes a newly designed all-glass miniature (Ø 125 microm) fiber-optic pressure sensor design that is appropriate for high-volume manufacturing. The fabrication process is based on the chemical etching of specially-designed silica optical fiber, and involves a low number of critical production operations. The presented sensor design can be used with either single-mode or multi-mod...