Disclosed is a high-frequency skin care device. The high-frequency skin care device according to one aspect of the present disclosure includes a high-frequency generator configured to receive power and output a high-frequency current, a coil part configured to convert the high-frequency current output from the high-frequency generator into an alternating magnetic field, a needle assembly including a plurality of needles configured to be heated by the alternating magnetic field and come in contact with the skin to treat the skin, a mover configured to move the needle assembly and allow the needle assembly to be inserted into the skin, and a controller configured to control the high-frequency generator and the mover.

In this study, we demonstrated a unique application of our Metal-Assisted and Microwave-Accelerated Decrystallization (MAMAD) technique for the de-crystallization of uric acid crystals, which causes gout in humans when monosodium urate crystals accumulate in the synovial fluid found in the joints of bones. Given the shortcomings of the existing treatments for gout, we investigated whether the MAMAD technique can offer an alternative solution to the treatment of gout. Our technique is based on the use of metal nanoparticles (i.e., gold colloids) with low microwave heating to accelerate the de-crystallization process. In this regard, we employed a two-step process; (i) crystallization of uric acid on glass slides, which act as a solid platform to mimic a bone, (ii) de-crystallization of uric acid crystals on glass slides with the addition of gold colloids and low power microwave heating, which act as nano-bullets when microwave heated in a solution. We observed that the size and number of the uric acid crystals were reduced by >60% within 10 minutes of low power microwave heating. In addition, the use of gold colloids without microwave heating (i.e. control experiment) did not result in the de-crystallization of the uric acid crystals, which proves the utility of our MAMAD technique in the de-crystallization of uric acid.

A system for heating tissue in a subject, has an alternating current (AC) source coupled to a coil; a magnetically permeable passive magnetic concentrator, and positioned to alter an intensity distribution of the field;. The system has a processor with a computer model of coil and concentrator, the memory with code for simulating magnetic fields and configured to generate an intensity map describing the intensity distribution of the AC magnetic field. A method of providing an alternating current (AC) magnetic field to magnetic nanoparticles includes: providing a source of alternating current coupled to a coil; positioning the coil in a vicinity of the nanoparticles; positioning a passive concentrator near the nanoparticles; and energizing the coil to generate the AC field, the field shaped by the concentrator and heats the nanoparticles. A particular embodiment simulates the magnetic field and compares the field to parameters to verify adequate heating of the nanoparticles.

The disclosure pertains to mixtures of LaFeSiH magnetic nanoparticles having different Curie temperatures useful for improved inductive hyperthermia efficiency, injectable formulations containing the nanoparticles, and methods of raising the temperature of selected cells using the nanoparticles.

Embodiments disclosed herein are directed to systems and methods for treating hypothermia in a subject is disclosed. In an embodiment, a method includes determining or measuring a temperature of a target region of the subject. The method also includes responsive to determining or measuring the temperature, directing electromagnetic energy at an external surface of the target region of the subject effective to heat the target region to a temperature of less than an ablation temperature of the target region.

An apparatus and method for magnetic particle manipulation enables the particle to be rotated and translated independently using magnetic fields and field gradients, which produce the desired decoupled translational and rotational motion. The apparatus and the method for manipulation may be implemented in parallel, involving many particles. The rotational magnetic field used to induce rotational motion may be varied to induce particle motion, which is either in phase or out of phase with the rotational magnetic field. The magnetic fields and gradients described herein may be generated with permanent magnets, electromagnets, or some combination of permanent magnets and electromagnets.

A magnetic catheter has a flexible tube having a lumen communicating with a balloon, the balloon located near a distal end of the tube; and a nonuniform magnetic portion located near, but proximal to, the balloon. The tube is adapted to insertion into bodily orifices like a male urethra, the lumen extending from balloon to proximal end and configured such that injection of fluid into the first lumen can inflate the balloon. The nonuniform magnetic portion has a sequence of magnetically permeable objects, or a sequence of permanent magnets, to provide magnetic field gradients to the prostate, or in alternative embodiment the pancreas. The catheter is used to treat the organ by applying a nonuniform magnetic field to the organ while magnetic nanoparticles are injected into the patient where they concentrate in the nonuniform magnetic field. An AC magnetic field is applied to the magnetic nanoparticles to heat the organ.

Apparatus and methods are described for killing cancer cells (44) of a subject, the subject having cancer cells and healthy cells. The apparatus includes a plurality of first molecules (40) configured to be coupled to the cancer cells to a greater extent than to the healthy cells, in response to being administered to the subject. A plurality of clusters (42) of phase-change molecules are provided, each of the clusters coupled to a respective one of the first molecules. An energy transmission unit (50) kills cancer cells coupled to the first molecules by heating the cancer cells, by transmitting energy toward the clusters that selectively heats the clusters. Other embodiments are also described.

The current invention concerns systems, devices and methods for the ablation of a vessel's wall from the inside, more specifically to implant devices and to the ablation of the wall of one or more pulmonary veins (PV) from the inside, preferably transmural ablation and preferably at the level of the antrum. Hereby, one or more implant devices can be implanted in the vessels and can subsequently be heated by external energy-providing means.

Products, compositions, systems, and methods for modifying a target structure which mediates or is associated with a biological activity, including treatment of conditions, disorders, or diseases mediated by or associated with a target structure, such as a virus, cell, subcellular structure or extracellular structure. The methods may be performed in situ in a non-invasive manner by placing a nanoparticle having a metallic shell on at least a fraction of a surface in a vicinity of a target structure in a subject and applying an initiation energy to a subject thus producing an effect on or change to the target structure directly or via a modulation agent. The nanoparticle is configured, upon exposure to a first wavelength .sub.1, to generate a second wavelength .sub.2 of radiation having a higher energy than the first wavelength .sub.1. The methods may further be performed by application of an initiation energy to a subject in situ to activate a pharmaceutical agent directly or via an energy modulation agent, optionally in the presence of one or more plasmonics active agents, thus producing an effect on or change to the target structure. Kits containing products or compositions formulated or configured and systems for use in practicing these methods.