Abstract: Apparatus for generating THz (terahertz) radiation, the apparatus comprising: a substrate; a planar array of asymmetric point antennas formed on the substrate and excitable by a pump pulse of radiation to radiate THz radiation the point antennas having characteristic dimensions substantially smaller than wavelengths of the radiated THz; wherein the array comprises point antennas aligned in different directions.

Abstract: Sensing apparatus includes a projector, which projects toward a target a pattern of spots extending over a predefined angular range about a projection axis. An imaging assembly includes an image sensor and objective optics, which form on the image sensor an image of the target along an imaging axis, which is offset transversely relative to the projection axis. A processor is configured to process signals output by the image sensor so as generate, while the target is within a first span of distances from the apparatus, a depth map of the target responsively to shifts of the spots in the image, and to estimate, while the target is within a second span of distances, nearer to the apparatus than the first span, a distance to the target from the apparatus by detecting in the image a part of the pattern located at an edge of the angular range.

Abstract: Apparatus for generating THz (terahertz) radiation, the apparatus comprising: a substrate; a planar array of asymmetric point antennas formed on the substrate and excitable by a pump pulse of radiation to radiate THz radiation the point antennas having characteristic dimensions substantially smaller than wavelengths of the radiated THz; wherein the array comprises point antennas aligned in different directions.

Abstract: A hair removal device using, or for use in combination with, a wax-strip configured to remove hair from skin. The device includes: a user holding member including a housing or chassis having a wax-strip removal mechanism actuator, the housing having a bottom surface configured for engaging with the skin; a wax-strip engagement mechanism for removable engagement with the wax-strip; a wax-strip removal mechanism including a wax-strip removal acceleration arrangement; and a wax-strip pressing mechanism. The wax-strip pressing mechanism presses the wax-strip to the user's skin by way of a pressing member and also distances the pressing member from the skin during operation of the device, to help mitigate shear and/or rubbing on the skin.

Abstract: A hair removal device using, or for use in combination with, a wax-strip configured to remove hair from skin. The device includes: a user holding member including a housing or chassis having a wax-strip removal mechanism actuator, the housing having a bottom surface configured for engaging with the skin; a wax-strip engagement mechanism for removable engagement with the wax-strip; a wax-strip removal mechanism including a wax-strip removal acceleration arrangement; and a wax-strip pressing mechanism. The wax-strip pressing mechanism presses the wax-strip to the user's skin by way of a pressing member and also distances the pressing member from the skin during operation of the device, to help mitigate shear and/or rubbing on the skin.

Abstract: Methods of imaging a living host using Raman nanoparticles; methods of generating a true image of a living host having been administered Raman nanoparticles; methods of multiplex imaging of a living host using a plurality of Raman nanoparticles; methods of generating multimodality images by combining Raman images with other functional/anatomical images; labeled Raman nanoparticles; and the like, are provided.

Abstract: Embodiments of the present disclosure provide for photoacoustic probes, methods of determining the presence and location of a specific target, methods of determining the presence and location of an enzyme, methods of determining the presence and location of a specific target and an enzyme, and the like.

Abstract: Magnetic resonance imaging (MRI) is enhanced by contrast agents such as superparamagnetic iron-oxide (SPIO) particles that resemble magnetite particles produced by magnetotactic bacteria. Magnetospirillum magneticum AMB-1 produces positive MRI contrast when generating ultrasmall magnetite particles (10-40 nm diameter). Positive MRI contrast permits clearer distinction from image voids compared to negative contrast. T1-weighted MRI showed that such bacteria increased positive contrast 2.2-fold (p<0.02) in vitro and 2.0-fold (p<0.02) following intratumoral injection in mouse tumor xenografts. Upon intravenous delivery, Magnetospirillum magneticum AMB-1 targeted tumors and generated increased positive MRI contrast in them (1.4-fold; p<0.01). AMB-1 tumor targeting was shown by viable counts, microPET imaging of radio-labeled AMB-1, and Prussian blue staining of tumor sections. Thus, magnetotactic bacteria provide a tool for improving cancer diagnosis and monitoring treatment response by MRI.

Abstract: Embodiments of the present disclosure provide for photoacoustic probes, methods of determining the presence and location of a specific target, methods of determining the presence and location of an enzyme, methods of determining the presence and location of a specific target and an enzyme, and the like.