According to an embodiment, a cryogenic regenerator material contains a silver oxide. A molar ratio of silver atoms to oxygen atoms contained in the cryogenic regenerator material: Ag/O is 1.0 or more and 4.0 or less. The cryogenic regenerator material contains at least one selected from AgO, Ag.sub.2O and Ag.sub.3O as the silver oxide.

A method of forming a near field transducer (NFT) layer, the method including depositing a film of a primary element, the film having a film thickness and a film expanse; and implanting at least one secondary element into the primary element, wherein the NFT layer includes the film of the primary element doped with the at least one secondary element.

A method of forming a near field transducer (NFT) layer, the method including depositing a film of a primary element, the film having a film thickness and a film expanse; and implanting at least one secondary element into the primary element, wherein the NFT layer includes the film of the primary element doped with the at least one secondary element.

Disclosed herein are methods of producing large batch metal/metal oxide nanoparticles that involve dynamic dialysis. The methods allow for batches of greater than 1 liter to be synthesized and aged while reducing the amount of water usage.

Object: To provide a biochip for use in exhaustive analysis of a particular protein including DNA (deoxyribose nucleic acid) in a body fluid through Raman quantitative analysis.

Resolving Means: Aqueous solution of metal complexes including plasmon metal selected from the group consisting of Au, Ag, Pt and Pd is supplied dropwise onto a carrier metal having an electrode potential of metal less noble than complex metal, followed by precipitation of nanometric quantum crystals from the metal complex on the carrier metal, the metal complex being so selected as to have a complex stability constant (log ) that is expressed by the following equation (I) correlating with the electrode potential E of the carrier metal:

E=(RT/|Z|.Math.F)In(.sub.i)(I)

(wherein E represents the standard electrode potential, R represents a gas constant, T represents the absolute temperature, Z represents the ion valency, and F represents the Faraday constant), the surface property of the metal complex quantum crystals on the carrier metal being subsequently adjusted in dependence on an object to be detected in the aqueous solution prior to the precipitation or after the precipitation.

Object: To provide a biochip for use in exhaustive analysis of a particular protein including DNA (deoxyribose nucleic acid) in a body fluid through Raman quantitative analysis.

Resolving Means: Aqueous solution of metal complexes including plasmon metal selected from the group consisting of Au, Ag, Pt and Pd is supplied dropwise onto a carrier metal having an electrode potential of metal less noble than complex metal, followed by precipitation of nanometric quantum crystals from the metal complex on the carrier metal, the metal complex being so selected as to have a complex stability constant (log ) that is expressed by the following equation (I) correlating with the electrode potential E of the carrier metal:

E=(RT/|Z|.Math.F)In(.sub.i)(I)

(wherein E represents the standard electrode potential, R represents a gas constant, T represents the absolute temperature, Z represents the ion valency, and F represents the Faraday constant), the surface property of the metal complex quantum crystals on the carrier metal being subsequently adjusted in dependence on an object to be detected in the aqueous solution prior to the precipitation or after the precipitation.

Nanoplatelet forms of metal hydroxide and metal oxide are provided, as well as methods for preparing same. The nanoplatelets are suitable for use as fire retardants and as agents for chemical or biological decontamination.

A novel near-IR emitting cationic silver chalcogenide quantum dot with a mixed coating wherein the coating comprises of at least 2 different types of materials and is capable of luminescence at the desired near IR bandwidth at wavelengths of 800-850 nm. The quantum dot is fabricated via an advantageous single-step, homogeneous, aqueous method at a low temperature resulting a near IR emitting semiconductor quantum dot with high Quantum Yield, high transfection with low toxicity. The quantum dots may be used in medical imaging, tumor detection, drug delivery and labeling as well as in quantum dot sensitized solar cells.

This invention proposes a multifunctional topical composition that integrates halogen-functionalized fullerenes (halo-fullerenes and halo-endofullerenes) and metallic nanoparticles (NPs) to provide comprehensive skin protection and sanitizing, cosmetic enhancement and in some embodiments, treatment for various conditions. Leveraging the atomic scale and physical characteristics of halogenated fullerenes for deeper tissue penetration, the composition can provide antioxidant, antimicrobial, and UV protective benefits to foster cellular integrity, proliferation, and differentiation as healthy tissue. The proposed formulation can penetrate the stratum corneum and diffuse into underlying skin layers due to atomic-scale NPs that can readily deliver active ingredients through the skin via the pores of sweat glands; the lipid matrix of the stratum corneum; and hair follicles, sebaceous glands, and pilosebaceous pores. This composition uses stable inorganic antibacterial agents with a robust safety profile. Furthermore, it can provide UV protection from harmful radiation. The formulation comprises active ingredients that are specific, safe, stable and effectiveand can be produced economically, making it suitable for a broad range of skin protection, sanitizing, enhancement and therapeutic products that promote skin health and wellbeing.

This invention proposes a multifunctional topical composition that integrates halogen-functionalized fullerenes (halo-fullerenes and halo-endofullerenes) and metallic nanoparticles (NPs) to provide comprehensive skin protection and sanitizing, cosmetic enhancement and in some embodiments, treatment for various conditions. Leveraging the atomic scale and physical characteristics of halogenated fullerenes for deeper tissue penetration, the composition can provide antioxidant, antimicrobial, and UV protective benefits to foster cellular integrity, proliferation, and differentiation as healthy tissue. The proposed formulation can penetrate the stratum corneum and diffuse into underlying skin layers due to atomic-scale NPs that can readily deliver active ingredients through the skin via the pores of sweat glands; the lipid matrix of the stratum corneum; and hair follicles, sebaceous glands, and pilosebaceous pores. This composition uses stable inorganic antibacterial agents with a robust safety profile. Furthermore, it can provide UV protection from harmful radiation. The formulation comprises active ingredients that are specific, safe, stable and effectiveand can be produced economically, making it suitable for a broad range of skin protection, sanitizing, enhancement and therapeutic products that promote skin health and wellbeing.