Wireless capsule endoscopy (WCE) enables the detection and diagnosis of inflammatory bowel diseases such as Crohn's disease and ulcerative colitis. However treatment of these pathologies can only be achieved through conventional means. This paper describes the next generation WCE with increased functionality to enable targeted drug delivery in the small intestinal tract. A prototype microrobot ...

• BiOI-based micromotors are fabricated using the template-assisted electrodeposition method. 2D BiOI nanosheets endow with visible-light-excited photocatalytic activity. Efficient removal of organic pollutants can be achieved on basis on-the-fly catalytic chemistry. Integration layered materials into is great interest for scientists since new characteristics or enhance their intrinsic properti...

Shuffle motors are electrostatic stepper micromotors that employ a built-in mechanical leverage to produce large output forces as well as high resolution displacements. These motors can generally move only over predefined paths that served as driving electrodes. Here, we present the design, modeling and experimental characterization of a novel shuffle motor that moves over an unpatterned, elect...

Near-infrared confocal microendoscopy is a promising technique for deep in vivo imaging of tissues and can generate high-resolution cross-sectional images at the micron-scale. We demonstrate the use of a dual-axis confocal (DAC) near-infrared fluorescence microendoscope with a 5.5-mm outer diameter for obtaining clinical images of human colorectal mucosa. High-speed two-dimensional en face scan...

This paper presents an omni-directional mobile microrobot for micro-assembly in a microfactory. A novel structure is designed for omni-directional movement with three normal wheels. The millimeter-sized microrobot is actuated by four electromagnetic micromotors whose size is 3.1 mm × 3.1 mm × 1.4 mm. Three of the micromotors are for translation and the other one is for steering. The micromotor ...

PURPOSE To determine the ability of a novel palpation device to differentiate between benign and malignant tissues of the kidney and bladder by measuring tissue elasticity. MATERIALS AND METHODS A novel palpation device was developed, mainly composed of a micromotor, a linear position sensor, a force transducer, and a hemisphere tip and cylindrical body probe. Motion calibration as well as pe...

En la actual pandemia por COVID-19, el mundo clínico se ha visto obligado a reforzar uso de protección en quehacer asistencial, debido al alto grado contagio y virulencia este virus. odontología, producción aerosoles, han suspendido las atenciones clínicas para prevenir contagios. El objetivo esta investigación es determinar cantidad contaminación bacteriana, generada aerosol con micromo...

High-speed dental instruments produce aerosol and droplets. The objective of this study was to evaluate droplet production from a novel electric micromotor handpiece (without compressed air coolant) in real world clinical settings. 10-minute upper incisor crown preparations were performed triplicate an open-plan clinic with mechanical ventilation providing 3.45 changes per hour. A 1:5 ratio whi...

We investigated the relative effectiveness of tangential versus normal displacements of skin for eliciting tactile sensations. Subjects adjusted the magnitude of slow tangential and oblique displacements of a cylindrical, flat-ended 1 mm diameter probe glued to the skin in order to match the perceived intensity of a reference displacement that indented the skin normal to the surface. At both th...