Novel Siloxane-Modified Epoxy Resins as Promising Encapsulant for LEDs

High performance encapsulant for light-emitting diodes (LEDs) by a sol–gel derived hydrogen siloxane hybrid

The hydrosilylation reaction is a dominant curing method for the light-emitting diode (LED) silicone encapsulant, which requires characteristics of high transparency, high refractive index, and thermal stability against the LED junction temperature. In this research, we synthesized a hydrogen containing oligosiloxane resin through non-hydrolytic sol–gel condensation. Methyldiethoxysilane (MDES)...

Epoxy Resins in Electron Microscopy

A method of embedding biological specimens in araldite 502 (Ciba) has been developed for materials available in the United States. Araldite-embedded tissues are suitable for electron microscopy, but the cutting qualities of the resin necessitates more than routine attention during microtomy. The rather high viscosity of araldite 502 also seems to be an unnecessary handicap. The less viscous epo...

Epoxy-siloxane Low Viscosity Pre-polymer for Nanoimprint Process

Nanoimprint lithography technologies (NIL), introduced by Chou et al. in 1995 [1], may be used to overcome the feature size limitation encountered in classical photolithography while remaining more economical than lithographies based on electron, ion beam, x-ray, and scanning probe tips. In the approach involving hot-embossing of a thermoplastic resist layer, a sub-10nm [2] resolution has been ...

Novel Gelatin–Siloxane Nanoparticles Multiple Modified by Cationic Peptide and Aptamers as Efficient Gene Vector

An excellent gene vector is of great importance for the development of the gene therapy. Gelatin–siloxane nanoparticles (GS NPs) with controlled size and surface charge were synthesized through a two-step sol–gel process for gene vector. In order to increase the efficiency of tumour targeting, HIV-derived Tat peptide and TTA1, a kind of modified RNA aptamer, were further grafted onto GS NPs (GS...

Toxicity studies of cured epoxy resins.