Abstract: A device to stimulate a scalp comprises an array of stimulating elements, the stimulating elements arranged along a circumference of at least one wheel, the wheel adapted to roll over the scalp. A method of treating/preventing a hair-condition comprises: subjecting the scalp to at least 200 distinct electrode-scalp contact events during a time-interval of at most one minute and dividable into 5 non-overlapping equal-duration sub-intervals covering the time-interval, method performed such that i. for at least a majority of the electrode-scalp contact events, no electrode of the event enters into the dermis; ii. a duration of each electrode contact event is at most 100 milliseconds; and iii. for each electrode contact event, an electrical current flows between the electrode and the scalp so as to deposit electrode-released ions of a first metal or of a second metal on the scalp, thereby forming a respective metal-ion-deposition island on the user's scalp.

Abstract: A device to stimulate a scalp comprises an array of stimulating elements, the stimulating elements arranged along a circumference of at least one wheel, the wheel adapted to roll over the scalp. A method of treating/preventing a hair-condition comprises: subjecting the scalp to at least 200 distinct electrode-scalp contact events during a time-interval of at most one minute and dividable into 5 non-overlapping equal-duration sub-intervals covering the time-interval, method performed such that i. for at least a majority of the electrode-scalp contact events, no electrode of the event enters into the dermis; ii. a duration of each electrode contact event is at most 100 milliseconds; and iii. for each electrode contact event, an electrical current flows between the electrode and the scalp so as to deposit electrode-released ions of a first metal or of a second metal on the scalp, thereby forming a respective metal-ion-deposition island on the user's scalp.

Abstract: A device to stimulate a scalp comprises an array of stimulating elements, the stimulating elements arranged along a circumference of at least one wheel, the wheel adapted to roll over the scalp. A method of treating/preventing a hair-condition comprises: subjecting the scalp to at least 200 distinct electrode-scalp contact events during a time-interval of at most one minute and dividable into 5 non-overlapping equal-duration sub-intervals covering the time-interval, method performed such that i. for at least a majority of the electrode-scalp contact events, no electrode of the event enters into the dermis; ii. a duration of each electrode contact event is at most 100 milliseconds; and iii. for each electrode contact event, an electrical current flows between the electrode and the scalp so as to deposit electrode-released ions of a first metal or of a second metal on the scalp, thereby forming a respective metal-ion-deposition island on the user's scalp.

Abstract: Embodiments of the invention relate to a composition, method and kit for producing galvanic cells upon application of the composition to the skin. In some embodiments, the composition comprises encapsulated half-galvanic cell units (e.g. individual and/or autonomous half-galvanic cell units) having the same ox/red potential (E°), wherein each half-galvanic cell unit comprises metal particles in the range of nano- to micro size or a mixture thereof, suspended within an aqueous solution of soluble electrolytic salt of same metal and wherein each half-galvanic cell unit is encapsulated by internal layer(s) made of hydrophilic metal (including silicon) oxide nanoparticles and external layer(s) made of hydrophobic metal (including silicon) oxide nanoparticles. The composition is useful for preventing and/or treating alopecia or for enhancing hair growth.

Abstract: A topically administrable composition comprises an aqueous suspension (e.g. a quick-drying aqueous solution), said aqueous suspension having disposed there within amphiphilic micro-particles having diameters in the range of 1-100 ?m, wherein said aqueous suspension comprises: A. hydrophobic nanoparticles of modified metal oxide and/or modified silicon oxide having diameters in the range of 1-150 nm; B. hydrophilic nanoparticles of metal oxide and/or silicon oxide having diameters in the range of 1-150 nm; and C. gas bubbles which are bounded by an internal layer of said hydrophobic nanoparticles and an external layer of said hydrophilic nanoparticles. In some embodiments, the gas-bubbles are air-bubbles.

Abstract: A method of treating or preventing a hair-condition of a user comprising: subjecting the user's scalp to at least 200 distinct electrode-scalp contact events during a time-interval of at most one minute and dividable into 5 non-overlapping equal-duration sub-intervals covering the time-interval, method performed such that i. for at least a majority of the electrode-scalp contact events, no electrode of the event enters into the dermis; ii. a duration of each electrode contact event is at most 100 milliseconds; and iii. for each electrode contact event, an electrical current flows between the electrode and the scalp so as to deposit electrode-released ions of a first metal or of a second metal on the scalp, thereby forming a respective metal-ion-deposition island on the user's scalp.

Abstract: A topically administrable composition comprises an aqueous suspension (e.g. a quick-drying aqueous solution), said aqueous suspension having disposed therewithin amphiphilic micro-particles having diameters in the range of 1-100 ?m, wherein said aqueous suspension comprises: A. hydrophobic nanoparticles of modified metal oxide and/or modified silicon oxide having diameters in the range of 1-150 nm; B. hydrophilic nanoparticles of metal oxide and/or silicon oxide having diameters in the range of 1-150 nm; and C. gas bubbles which are bounded by an internal layer of said hydrophobic nanoparticles and an external layer of said hydrophilic nanoparticles. In some embodiments, the gas-bubbles are air-bubbles.

Abstract: Embodiments of the invention relate to a composition, method and kit for producing galvanic cells upon application of the composition to the skin. In some embodiments, the composition comprises encapsulated half-galvanic cell units (e.g. individual and/or autonomous half-galvanic cell units) having the same ox/red potential (E°), wherein each half-galvanic cell unit comprises metal particles in the range of nano- to micro size or a mixture thereof, suspended within an aqueous solution of soluble electrolytic salt of same metal and wherein each half-galvanic cell unit is encapsulated by internal layer(s) made of hydrophilic metal (including silicon) oxide nanoparticles and external layer(s) made of hydrophobic metal (including silicon) oxide nanoparticles. The composition is useful for preventing and/or treating alopecia or for enhancing hair growth).

Abstract: A topically administrable composition comprises an aqueous suspension (e.g. a quick-drying aqueous solution), said aqueous suspension having disposed there within amphiphilic micro-particles having diameters in the range of 1-100 ?m, wherein said aqueous suspension comprises: A. hydrophobic nanoparticles of modified metal oxide and/or modified silicon oxide having diameters in the range of 1-150 nm; B. hydrophilic nanoparticles of metal oxide and/or silicon oxide having diameters in the range of 1-150 nm; and C. gas bubbles which are bounded by an internal layer of said hydrophobic nanoparticles and an external layer of said hydrophilic nanoparticles. In some embodiments, the gas-bubbles are air-bubbles.

Abstract: A method of treating or preventing a hair-condition of a user comprising: subjecting the user's scalp to at least 200 distinct electrode-scalp contact events during a time-interval of at most one minute and dividable into 5 non-overlapping equal-duration sub-intervals covering the time-interval, method performed such that i. for at least a majority of the electrode-scalp contact events, no electrode of the event enters into the dermis; ii. a duration of each electrode contact event is at most 100 milliseconds; and iii. for each electrode contact event, an electrical current flows between the electrode and the scalp so as to deposit electrode-released ions of a first metal or of a second metal on the scalp, thereby forming a respective metal-ion-deposition island on the user's scalp.

Abstract: A method of treating or preventing a hair-condition of a user comprising: subjecting the user's scalp to at least 200 distinct electrode-scalp contact events during a time-interval of at most one minute and dividable into 5 non-overlapping equal-duration sub-intervals covering the time-interval, method performed such that i. for at least a majority of the electrode-scalp contact events, no electrode of the event enters into the dermis; ii. a duration of each electrode contact event is at most 100 milliseconds; and iii. for each electrode contact event, an electrical current flows between the electrode and the scalp so as to deposit electrode-released ions of a first metal or of a second metal on the scalp, thereby forming a respective metal-ion-deposition island on the user's scalp.

Abstract: A device to stimulate a scalp comprising an array of stimulating elements adapted to pierce the skin of the scalp no deeper than a thickness of a dermis, wherein the stimulating elements are arranged along a circumference of at least one wheel and the wheel is adapted to roll over the scalp.

Abstract: Nano-particle materials including nanometer-scaled particles with a variety of sizes, chemical compositions, and properties may be used to form functional and/or protective media (layers) on a variety of materials and items. Among the items that may be coated and/or protected by nano-particle materials are integrated circuits, printed circuit boards, micro-electro-mechanical systems (MEMS), photonics devices and packages, optical fibers, and displays, as well as various macroscopic structures, such as pipes (tubes), bridges, towers and other civil engineering structures, all kinds of marine vehicles and off-shore structures, aircraft and aerospace structures, cars, etc.

Abstract: An emulsion comprising: water; hydrophilic particles; and hydrophobic particles; wherein the hydrophilic and hydrophobic particles form shells encapsulating a gas that are suspended in the water, said shells comprising an external layer of hydrophilic particles and an internal layer of hydrophobic particles adjacent to the layer of hydrophilic particles.

Abstract: A compliant bonding material includes a thixotropic filler, and a plurality of nanoparticles embedded in the filler. The filler can be for example, oil or other stable viscous liquid with the proper surface tension properties, for example, siloxane, other silicone oils, or polysiloxane. The nanoparticles can be, e.g., Ag, Cu, Ti, Ni, metal oxides, silica, ZnO and Fe2O3. A plurality of microspheres can be embedded in the filler, with whiskers formed on surfaces of the microspheres. Nanoparticles can also be embedded in the filler. The whiskers can be nanotubes, nanoparticles and/or nanowires. The whiskers can be, for example, metallic. The bonding material can be used a bonded structure that includes a first surface and a second surface, with the bonding material positioned between the first and second surfaces.

Abstract: Nano-particle materials including nanometer-scaled particles with a variety of sizes, chemical compositions, and properties may be used to form functional and/or protective media (layers) on a variety of materials and items. Among the items that may be coated and/or protected by nano-particle materials are integrated circuits, printed circuit boards, micro-electro-mechanical systems (MEMS), photonics devices and packages, optical fibers, and displays, as well as various macroscopic structures, such as pipes (tubes), bridges, towers and other civil engineering structures, all kinds of marine vehicles and off-shore structures, aircraft and aerospace structures, cars, etc.

Abstract: An optical fiber includes a core, a cladding layer, and an overclad layer that has a plurality of nano-particles the core.

Abstract: An optical fiber includes a core, and a cladding layer that has a plurality of nano-particles around the core.

Abstract: The present invention relates to a new topical cosmetic composition formulated for concealing wrinkles and for eliminating or reducing damages to the skin appearance resulted from a wide variety of disorders, such as for example, acne. Said composition comprises water, optionally containing 25-400 ppm of Ag, hydrophobic particles, preferably hydrophobic silica, having a diameter, ranged from about 5 to about 150 nm, and/or hydrophilic particles, preferably hydrophilic silica, having a diameter, ranged from about 5 to about 150 nm and a soluble electrolyte, capable of releasing free ions in an aqueous environment.