86 results about "Non-ionizing radiation" patented technology

Disclosed are safe, simple and effective broad-spectrum treatments for halitosis and other microbial infections of the nondental upper respiratory tract useful to treat bacterial and other microorganism species, including anaerobic bacteria. Electromagnetic radiative energy including visible, and optionally, thermal, RF and/or microwave wavelengths, is topically applied to internal surfaces of the upper respiratory tract to destroy or incapacitate superficial microorganisms without the use of antibiotics. One useful apparatus is a handheld energy applicator having a light output head suitable for treating the back of the tongue and the tonsils and which may be interchangeably provided with extensions to reach the sinuses. The energy applicator can be supported and guided by a mounting device held between the subject's teeth, if desired. Useful embodiments of the invention include preparative treatment of the target surfaces with a photosensitizing agent such as an oxidizing agent or a complementary stain. Optionally a pre-treament procedure may be employed to remove detritus and microfloral overgrowths that may mask more deeply resident target microorganisms. Novel treatments include treatment of halitosis by destruction of bacterial species associated with halitosis, such as Atopobium parvulum, by application of non-ionizing radiative energy to the tonsils and the back of the tongue. Another embodiment comprises a candy bar incorporating a halitosis treatment lamp disposed within the candy.

The present invention uses spectroscopic tissue volume measurements using non-ionizing radiation to detect pre-disease transformations in the tissue, which increase the risk for this disease in mammals. The method comprises illuminating a volume of selected tissue of a mammal with light having wavelengths covering a pre-selected spectral range, detecting light transmitted through, or reflected from, the volume of selected tissue, and obtaining a spectrum of the detected light. The spectrum of detected light is then represented by one or more basis spectral components, an error term, and an associated scalar coefficient for each of the basis spectral components. The associated scalar coefficient is calculated by minimizing the error term. The associated scalar coefficient of the each of the basis spectral components is correlated with a pre-selected property of the selected tissue known to be indicative of susceptibility of the tissue for the pre-selected disease to obtain the susceptibility for the mammal to developing the pre-selected disease.

A method of activating the shrink characteristic of a film comprises two steps. First, a film comprising one or more thermoplastic polymers and at least about 0.01 weight % photothermic material is provided. Second, the film is exposed to an amount of non-ionizing radiation effective for the photothermic material to generate heat to cause an effect selected from one or more of: 1) shrinking the film by at least about 5% in at least one direction, and 2) increasing the tension in the film by at least about 50 pounds per square inch in at least one direction.

Apparatus, including a surgical kit, for use with a surgical drill, in the repair of bones using an intramedullary nail insertable into a patient's bone, comprising a rod like device for insertion into the intramedullary nail, the device having a light source emitting electromagnetic non-ionizing radiation in the infrared or visible portions of the electromagnetic spectrum, and the device being positionable so that the light source emits the radiation through a distal transverse hole of the intramedullary nail; and a surgical instrument for exposing an exterior surface of a portion of the bone illuminated by the radiation for view by the surgeon. The surgeon can detect the radiation on the exterior surface of the bone and align the surgical drill to the radiation passing through the transverse hole of the intramedullary nail, permitting accurate drilling of a hole through the bone and passage of the drill through the transverse hole of the intramedullary nail.

An incubator for imaging with non-ionising radiation adapted for the care of newborn babies, which integrates a system projective or tomographic imaging system, or both simultaneously, which makes use of non-ionising radiation in the band of the electromagnetic spectrum included between ultraviolet light and far infrared, a system which can be used to view a subject (11) located in the incubator (19) such that this projective or tomographic image can be morphological or functional.

A pattern-forming method comprises applying a chemically amplified resist material on an antireflective film formed on a substrate to form a resist material film. The resist material film is patternwise exposed to ionizing radiation or nonionizing radiation having a wavelength of no greater than 400 nm. The resist material film patternwise exposed is floodwise exposed to nonionizing radiation having a wavelength greater than the nonionizing radiation for the patternwise exposing and greater than 200 nm. The resist material film floodwise exposed is baked. The resist material film baked is developed with a developer solution. An extinction coefficient of the antireflective film for the nonionizing radiation employed for the floodwise exposing is no less than 0.1. The chemically amplified resist material comprises a base component and a generative component that is capable of generating a radiation-sensitive sensitizer and an acid upon an exposure.

A resist-pattern-forming method comprises: patternwise exposing a predetermined region of a resist material film to a first radioactive ray that is ionizing radiation or nonionizing radiation; floodwise exposing the resist material film to a second radioactive ray that is nonionizing radiation; baking the resist material film; and developing the resist material film to form a resist pattern. The resist material film is made from a photosensitive resin composition comprising a chemically amplified resist material. The chemically amplified resist material comprises a base component that is capable of being made soluble or insoluble in a developer solution by an action of an acid and a generative component that is capable of generating a radiation-sensitive sensitizer and an acid upon an exposure. A van der Waals volume of the acid generated from the generative component is no less than 3.0×10⁻²⁸ m³.

A pattern-forming method comprises patternwise exposing a predetermined region of a resist material film made from a photosensitive resin composition comprising a chemically amplified resist material to a first radioactive ray that is ionizing radiation or nonionizing radiation having a wavelength of no greater than 400 nm. The resist material film patternwise exposed is floodwise exposed to a second radioactive ray that is nonionizing radiation having a wavelength greater than the wavelength of the nonionizing radiation for the patternwise exposing and greater than 200 nm. The chemically amplified resist material comprises a base component, and a generative component that is capable of generating a radiation-sensitive sensitizer and an acid upon an exposure. The generative component comprises a radiation-sensitive sensitizer generating agent. The radiation-sensitive sensitizer generating agent comprises a compound represented by formula (A).

A method and apparatus for assessing bone tissue comprises the steps of and means for: exposing a sample to nonionizing radiation; detecting nonionizing radiation after transit in the bone tissue; measuring optical properties from the detected nonionizing radiation to characterize bone tissue across an entire selected spectral range using a continuous wave model, a frequency domain model or a combination of both wave model and frequency domain models; and determining composition, structure, physiology or a combination thereof of bone tissue from the measured optical properties.

The invention provides a calcification imaging method and system. The calcification imaging method comprises the following steps of: transmitting a first ultrasonic wave to a tissue; receiving the echo wave of the first ultrasonic wave and forming the first ultrasonograph of the tissue; transmitting a first light ray onto the tissue to excite a first optical sound; receiving the first optical sound and forming a first optical sound image of a calcification; and overlapping the first ultrasonograph with the first optical sound image to form a first overlapped image for imaging the distribution condition of the calcification in the tissue. Compared with ultrasonic wave and X-ray mammography, the image obtained by the invention has the advantages of no speckle noise, high optical absorption contrast and high ultrasonic wave spatial resolution, and the used light source is non-ionizing radiation, thus having higher safety.

A method of optically analyzing tissue in vivo in an individual to obtain a unique spectrum for the tissue of the individual includes the steps of optically measuring the tissue of the individual using broadband diffuse optical spectroscopy (DOS) to measure a normalized tissue water spectrum of the individual or noninvasively optically line scanning a tissue site on the individual at a plurality of points, then determining spectral differences between the normalized tissue water spectrum and a pure water spectrum at each point of a line scan, generating a bound water index (BWI) corresponding to the spectral differences, and identifying a tissue state corresponding to the scanned tissue based on the BWI.

A cold-plasma seed treatment method capable of promoting germination of seeds of grain and oil crops and increasing the yield of the grain and oil crops comprises steps as follows: the oil crops and rice wheat seeds are subjected to cold plasma treatment under the treatment conditions that helium is taken as a discharge medium, the treatment power is 60-140 W and the treatment time is 15-20 s. An HD-2N type glow discharge cold-plasma seed treating machine is used for nonionizing radiation treatment, good stimulation is generated on the seeds, seed coat permeability can be remarkably increased, hydrophily and water absorbing capacity of the seeds are enhanced, the katabolic metabolism capability of seed storage substances is further improved, and accordingly, seed germination and seedling growth are remarkably promoted.

A distributed imaging system uses non-ionizing radiation in the form of microwaves to image the body. This non-ionizing radiation is safer for a patient than traditional x-rays. The majority of image processing takes place in a centralized computing environment which receives microwave image data from many remote data acquisition sites (such as imaging centers, radiology groups, and/or doctor's offices). The centralized computing environment is specially configured to receive microwave image data from many sites and produce microwave images based on the received microwave image data. The microwave images may then be sent back to the acquisition site and/or to other sites for viewing and evaluation. This relieves the image data acquisition site of the burden and expense of having specialized high speed computer equipment that is necessary to produce microwave images. Because the computing environment collects and stores information (data and results) from many data acquisition sites in one central location, the prior results from all of the acquisition sites can be accessed and used to enhance processing and diagnosis.

The invention discloses a treatment process of plant seeds through cold plasma treatment. The process comprises the step of selecting cold plasma treatment conditions for treating corresponding plant seeds according to the texture and the hardness of hulls of the plant seeds, wherein the plant seeds with loose hull textures are first species of seeds, and the cold plasma treatment condition for the first species of seeds is characterized by carrying out nonionizing radiation treatment on the first species of seeds for 8 to 18 seconds with the treatment power being ranged from 10W to 25W in a vacuum environment; the plant seeds with hard hull textures are second species of seeds, and the cold plasma treatment condition for the second species of seeds is characterized by carrying out nonionizing radiation treatment on the second species of seeds for 18 to 25 seconds with the treatment power being ranged from 155W to 185W in a vacuum environment. According to the treatment process of the plant seeds through cold plasma treatment provided by the invention, the seeds with different textures of hulls can be subjected to optimal plasma treatment, so that the properties of different species of seeds are improved.

A process for modifying a polymeric photoactive sulfone membrane includes placing the membrane into the presence of acrylic acid monomer dissolved in a solution and without sensitizer or free radical initiator and exposing the membrane to non-ionizing UV radiation for modifying the membrane by chemical grafting of the monomer at the surface of the membrane. The membrane can be polysulfone, polyethersulfone or polyarylsulfone. The radiation is selected to have an energy below that at which chain scission occurs and above that at which maximum grafting occurs. The process includes washing the modified membrane in a washing agent containing ethanol, glycol, ether, acid, hydrocarbon, or mixtures thereof, to wash homopolymer formed in the solution from the modified membrane, but preferably ethanol.

The invention is the novel use of Quantum Dots (QDs) for radiation dosimetry and includes novel dosimetry devices, systems and methods. The devices, systems and methods have use in a variety of dosimetry applications such as personal, environmental and research. The system for detecting doses of ionizing radiation comprises; a matrix comprising a photoluminescent semiconductor nanocrystals; an illumination interface for exposing the matrix to non-ionizing radiation; a response characterization interface for measuring photoluminescence, scatter or the optical density of the matrix and identifying differences in the photoluminescence, scatter or optical density caused by exposure to ionizing radiation; and a readout interface to quantify the photoluminescence or optical density differences as doses of radiation.

Disclosed is a radiation sensitive photocatalyst composition and application thereof. The composition can be induced by using ionization radiation or non-ionization radiation, which comprises a photocatalyst to perform photocatalysis; an enhancer to convert radiation energy into photons for photocatalysis; and a porous material to absorb and to immobilize the photocatalyst/enhancer becoming a composition system. The advantages of using radiation to carry out the photocatalytic reaction for environmental protection are high permeability as well as time flexibility in comparison of artificially UV/natural solar radiation. Anyway, the present invention can be used to fulfill the environmental application such as volume-reduction of spent radioactive resin and organics degradation. It is worthy to explore the regeneration of hydrogen energy by this invention.

Provided are radiation enhanced resistive switching layers, resistive random access memory (ReRAM) cells including these layers, as well as methods of forming these layers and cells. Radiation creates defects in resistive switching materials that allow forming and breaking conductive paths in these materials thereby improving their resistive switching characteristics. For example, ionizing radiation may break chemical bonds in various materials used for such a layer, while non-ionizing radiation may form electronic traps. Radiation power, dozing, and other processing characteristics can be controlled to generate a distribution of defects within the resistive switching layer. For example, an uneven distribution of defects through the thickness of a layer may help with lowering switching voltages and/or currents. Radiation may be performed before or after thermal annealing, which may be used to control distribution of radiation created defects and other types of defects in resistive switching layers.