457 results about "Light activated" patented technology

The present invention provides compositions and methods for light-activated cation channel proteins and their uses within cell membranes and subcellular regions. The invention provides for proteins, nucleic acids, vectors and methods for genetically targeted expression of light-activated cation channels to specific cells or defined cell populations. In particular the invention provides millisecond-timescale temporal control of cation channels using moderate light intensities in cells, cell lines, transgenic animals, and humans. The invention provides for optically generating electrical spikes in nerve cells and other excitable cells useful for driving neuronal networks, drug screening, and therapy.

An automatic hold switch is disclosed. The automatic hold switch provides a means for automatically switching a hold feature on and off. When the hold feature is on, one or more input devices of a portable electronic device are disabled or prevented from providing input signals. When the hold feature is off, one or more input devices of a portable electronic device are enabled or allowed to provide input signals. Because the user no longer has to manually control the hold feature, the number of actions that need to be taken by the user is reduced. In one example, the automatic hold switch is embodied with light sensors that detect when the device is in a dark environment and when the device is in a light environment. A dark environment indicates to the portable electronic device that the user wishes not to input and therefore the hold feature is turned on. A lighted environment indicates to the portable electronic device that the user wishes to input and therefore the hold feature is turned off.

Method and medical devices for generating and stabilizing micro- or nano-bubbles, and systems and methods for therapeutic applications using the bubbles, are provided. The micro-bubbles may be used to enhance therapeutic benefits such as ultrasound-guided precision drug delivery and real-time verification, acoustic activation of large tumour masses, enhanced acoustic activation through longer retention of therapeutic agents at the point of interest, enhancement of high intensity focused ultrasound treatments, light activation of photodynamic drugs at a depth within a patient using extracorporeal light sources, probes, or sonoluminescence, and initiation of time reversal acoustics focused ultrasound to permit highly localized treatment.

There is provided a decorative laminate having a first laminate layer, a second laminate layer, and a decorative layer disposed selectively between the first laminate layer and the second laminate layer. The decorative layer includes one or more visible materials, and one or more non-visible light activated materials that change from a non-visible state to a visible state when exposed to a light source. The light source includes an ultraviolet (UV) light source or an infrared (IR) light source. The decorative laminate further has a resin layer disposed on the second laminate layer. The first laminate layer, the decorative layer, the second laminate layer, and the resin layer are laminated together to form the decorative laminate configured for application to a structural component.

The invention is based on the use of polyisobutylmethacrylate instead of PMMA as an adhesive or spinal fill material for treating diseases of the spine. Polyisobutylmethacrylate has several advantages over PMMA, mainly less heat is developed during the in situ polymerization process. When using any spinal adhesive of fill material that is light activated, a tube can be used to transmit activating light to the light-activated adhesive or spinal polymerizable fill material at the surgical site. In addition, a mesh bag comprising optical fibers or similar light transmitting material can be employed to receive the injected light-activated fill, with the mesh bag, irradiated externally, for directing the light via the bag to the polymerizable fill.

Provided herein are compositions comprising light-activated chimeric proteins expressed on plasma membranes and methods of using the same to selectively depolarize excitatory or inhibitory neurons.

A doubler part doubles frequencies of video signals. A drive control circuit generates, in response to a synchronizing signal outputted from the doubler part, PWM dimming frequency information such that a PWM dimming frequency f and a black display ratio B satisfy the relationships f≧25B+250 and B>10, and provides such information to a PWM dimming signal generation circuit. In addition, the drive control circuit drives a gate driver and a source driver such that one frame period is divided into an image display period and a black display period. The PWM dimming signal generation circuit generates, in response to a synchronizing signal and the PWM dimming frequency information, a PWM dimming signal and provides the PWM dimming signal to a lighting circuit. The lighting circuit activates a backlight device with dimming, in response to the PWM dimming signal. This configuration reduces colored interference fringes in a liquid crystal display device resulting from the combination of a black insertion drive technique and a PWM dimming technique.

Optically-activated particles for use in cosmetic preparations. The optically-activated particles include a plurality of substrate particles selected from the group consisting of nylons, acrylics, polyesters, other plastic polymers, natural materials, regenerated cellulose, metals and minerals; an optical brightener chemically bonded to each of the plurality of substrate particles to form integral units in the form of optically-activated particles for diffusing light to reduce the visual perception of skin imperfections, including cellulite, shadows, skin discolorations, and wrinkles; and each of the optically-activated particles are encapsulated with a UV transparent coating to increase the diffusion light to further reduce the visual perception of the skin imperfections. The encapsulated optically-activated particles are able to absorb ultraviolet radiation and emit visible light; and the encapsulated optically-activated particles are able to both scatter and absorb light in a diffuse manner in order to reduce the visual perception of skin imperfections, including cellulite, wrinkles, shadows, and skin discolorations, when the optically-activated particles are applied to the skin surface. The encapsulated optically-activated particles are used in the making of cosmetic preparations such as skin lotions, creams, shampoos, body and skin rinses, bath gels, soaps, hair conditioners, color conditioners and rinses, hair color solutions, foundation powders (compressed or loose), tooth pastes, oral rinses, and any acceptable cosmetic vehicle or medium.