A method for producing exosomes comprises steps of: providing ultrasound stimulation directly or indirectly to cells; culturing a mixture of the cells and a medium for a predetermined time; and isolating exosomes from the mixture, wherein providing the stimulation directly to the cells comprises applying ultrasound stimulation to the medium containing the cells, and the providing the stimulation indirectly to the cells comprises applying ultrasound stimulation to the medium not containing the cells and then mixing the medium and the cells. This method for producing exosomes makes it possible to obtain exosomes having a hair regeneration effect not only from stem cells and progenitor cells that are difficult to isolate and multiply, but also from somatic cells that may be easily obtained and maintained, in high yield within a short time by ultrasound treatment that is a simple process.

The invention relates to a cosmetic process for caring for the skin, more particularly facial skin, in particular wrinkled skin, comprising: (i) a step consisting in applying to the skin a composition, in particular a cosmetic composition, comprising, in a physiologically acceptable medium, a polysaccharide polymer grafted with (meth)acrylate groups and a photoactive compound, (ii) followed by a step consisting in exposing the skin to light radiation, preferably for at least 5 seconds. The invention also relates to a composition comprising, in a physiologically acceptable medium, a polysaccharide polymer grafted with (meth)acrylate groups and a photoactive compound.

A method of damaging a parasite while being a resident in or on a surface of a body of a mammal. The method comprises irradiating the parasite with ultrasound radiation at a frequency of from about 1 MHz to about 2.6 MHz for a period of at last one second.

Disclosed herein are devices for micronizing an aspirate. Also disclosed herein are systems for micronizing an aspirate. The devices and systems may include a liposuction syringe for liquefying fat and/or an incubator for expansion of cells. Devices and systems may also include a handpiece with a handle, a motor disposed within the handle, a blade positionable within a syringe barrel containing an aspirate, the blade rotationally coupled to the motor by a drive shaft, and an end cap positioned along the drive shaft between the blade and the handle, the end cap including an opening through which the drive shaft extends, the end cap configured to seal the syringe barrel.

A preparation method for camellia extract includes the following steps: 1) Removing impurities from fresh camellia and/or fresh camellia buds, cutting the fresh camellia and/or fresh camellia buds into small sections for use as raw materials; 2) Placing a certain quantity of raw materials into a ultrasonic vessel, adding in a solvent having a mass ratio of 1:3 to 1:30 to form a mixture, uniformly stirring the mixture, and then adding in a certain amount of inorganic acid and/or organic acid to adjust the pH value to 1.3 to 3.0, then soaking the raw materials for 10 minutes to 30 minutes; 3) Performing ultrasonic treatment for 30 minutes to 60 minutes, controlling the ultrasonic frequency to be 20 KHz to 25 KHz, the ultrasonic power to be 1000 W to 2000 W, the ultrasonic temperature to be 15 C. to 50 C., then performing filtration, sterilization and detection to obtain camellia extract.

Methods for forming dermatological compositions that deliver water and/or other hydrophilic compounds into or through the dermis using reverse micelles. The methods include forming compositions with an oil-based continuous phase and an emulsifier that form nanoparticle micelles. The nanoparticle micelles are formulated into biocompatible topical ointments that are stable at room temperature and can be distributed in consumer packaging and consumer distribution channels.

A variety of methods and compositions for a new polish formulation that uses electro-conductive liquid to transfer static electricity between the human body and a touch screen. It will be primarily used by women to uses their nails while typing. The device will bring increased speed and accuracy while being worn.

A method of damaging a parasite while being a resident in or on a surface of a body of a mammal. The method comprises irradiating the parasite with ultrasound radiation at a frequency of from about 1 MHz to about 2.6 MHz for a period of at least one second.

A method for forming a coated particle having a core particle that is fully coated by a dual-layer coating that includes an inner layer formed of a hydrophilic composition and an outer layer formed of a hydrophobic polymer. The core particles are added to a hydrophilic solution and mixed together. The hydrophobic polymer is then added to form a mixture. The mixture is sonicated to coat the particles and the coated particles are separated and dried to form meta-stable coated particles.

Provided is a method for preparing a vegetable oil emulsion including mixing water with a vegetable oil to provide a first mixture (a), and applying ultrasonic waves with a frequency of 25 to 70 kHz to the first mixture to solubilize the first mixture (b). Through treatment of ultrasonic waves with a certain frequency, the method for preparing a vegetable oil emulsion according to the present invention has advantages of significantly easily converting various herbal oils into aqueous emulsions at a high yield, significantly preventing layer-separation between oils and water for a long time, and being widely applicable to a variety of herbal oils.