Method for preparing porous shells or gels from glass particles

A method is provided for preparing shells, concentric shells or porous, homogenous gels from alkali borate glass particles at low temperatures (i.e. room temperature or less than above 100° C.). The alkali borate glass particles contain one or more cations such as aluminum which react with an aqueous solution containing an anion such as hydroxide to form an aqueous insoluble material having a solubility limit of less than about 0.01 wt. percent. The resulting shells or gels may be used in many different applications such as a filler in resins, as filters, precursors for nano-sized powders, as thin surface films or catalyst support media. The resulting shells or gels may also have a chemotherapeutic drug added thereto, following which the resulting product is administered to a mammal and the insoluble material is dissolved form the product in vivo through administration of chelating agent.

Arrangement for fluorescence amplification

The invention relates to an arrangement for fluorescence amplification including a substrate, a fluorescence amplifier coating applied to the substrate, and a thin fluorescencable material which lies on the coating and emits light with the emission wavelength E when it is exposed to excitation light of an excitation wavelength A. The fluorescence amplifier coating includes an interference layer system of high-index and low-index dielectric layers, which reflects at least the excitation light. What is crucial for the design of the coating is that the fluorescencable material applied to the coating is arranged on the surface of the coating in the region of the maximum of the electric field amplitude of the standing wave with the excitation wavelength A, which is formed during exposure to the excitation light.

Photonic devices for optical and optoelectronic information processing

The invention concerns a photonic device comprising a first section including a material adapted to interact with photons, a second section including a material adapted to interact with photons, with an area of said first section and an area of said second section abutting each other wherein at least a part of said first area and a part of said second area defines a low temperature bonding area to provide adaptability for a plurality of applications based on a combination of materials having specific characteristic benefits, however without introducing unwanted effects having a negative influence on the quality of optical signals.

SELF-LUBRICATING PHARMACEUTICAL SYRINGE STOPPERS

In one aspect, a self-lubricating component is provided for a pharmaceutical packaging assembly. The self-lubricating component comprises a polymer composition and an effective amount of a lubricating additive such as, for example, boron nitride. In another aspect, a pharmaceutical packaging assembly may be provided having a surface thereof coated with a lubricating composition comprising boron nitride. The pharmaceutical packaging composition may be, for example, a pre-filled syringe comprising a body (barrel) and a plunger assembly.

SELF-LUBRICATING PHARMACEUTICAL SYRINGE STOPPERS

In one aspect, a self-lubriating component is provided for a pharmaceutical packaging assembly. The self-lubricating component comprises a polymer composition and an effective amount of a lubricating additive such as, for example, boron nitride. In another aspect, a pharmaceutical packaging assembly may be provided having a surface thereof coated with a lubricating composition comprising boron nitride. The pharmaceutical packaging composition may be, for example, a pre-filled syringe comprising a body (barrel) and a plunger assembly.

Self-lubricating pharmaceutical syringe stoppers

In one aspect, a self-lubricating component is provided for a pharmaceutical packaging assembly. The self-lubricating component comprises a polymer composition and an effective amount of a lubricating additive such as, for example, boron nitride. In another aspect, a pharmaceutical packaging assembly may be provided having a surface thereof coated with a lubricating composition comprising boron nitride. The pharmaceutical packaging composition may be, for example, a pre-filled syringe comprising a body (barrel) and a plunger assembly.

PHARMACEUTICAL PACKAGING ASSAY

A pharmaceutical packaging assay for the determination of drug adsorption to the packaging surface(s) is described. The assay described utilizes fluorescent labeling of drugs in various formulations to determine the best packaging surface for drug stability as a function of adsorption.

Photonic devices for optical and optoelectronic information processing

Photonic devices for optical and optoelectronic information processing

The invention concerns a photonic device (1) comprising a first section (2, 4) including a material (4) adapted to interact with photons, a second section (5) including a material (5) adapted to interact with photons, with an area (3) of said first section (2, 4) and an area (6) of said second section (5) abutting each other wherein at least a part of said first area (3) and a part of said second area (6) defines a low temperature bonding area to provide adaptability for a plurality of applications based on a combination of materials having specific characteristic benefits, however without introducing unwanted effects having a negative influence on the quality of optical signals.

Method for preparing porous shells or gels from glass particles

A method for preparing a shell or porous gel from glass particles involves the steps of: (a) forming particles of an alkali borate glass composition containing one or more cations which react with an aqueous solution containing an anion reactive with the cation to form an aqueous insoluble material having a solubility limit of less than about 0.01 wt. %; (b) immersing the glass composition particles in the aqueous solution to cause reaction of the particles to form the insoluble material which is essentially the same size as the as-made particles with the alkali and boron dissolving from the glass particles; and (c) allowing the reaction to continue until the alkali and boron are substantially completely dissolved from the glass particles and the resulting product is composed of a shell filled with colloidal particles or gel, concentric shells or a porous, homogeneous gel, the product being nonradioactive and not adapted for neutron irradiation. A method for administering a chemotherapeutic drug using the product of the above method is also disclosed.

Self-lubricating pharmaceutical syringe stoppers

In one aspect, a self-lubriating component is provided for a pharmaceutical packaging assembly. The self-lubricating component comprises a polymer composition and an effective amount of a lubricating additive such as, for example, boron nitride. In another aspect, a pharmaceutical packaging assembly may be provided having a surface thereof coated with a lubricating composition comprising boron nitride. The pharmaceutical packaging composition may be, for example, a pre- filled syringe comprising a body (barrel) and a plunger assembly.

Validated design for microarrays

The present invention relates to a system for preparing an experimentally validated microarray, in particular experimentally validated DNA microarrays, to a corresponding preparation method and to the microarray obtainable by the method of the invention. The system of the invention and the method are particularly distinguished by a decoupling of provision of the layout for the validated microarray and preparation of the final product itself.

Photonische vorrichtungen zur optischen und optoelektronischen informationsverarbeitung

Vorrichtung in form einer mikrotiterplatte zum multiplexierten array

Anordnung zur fluoreszensverstärkung