Results 241 to 250 of about 67,628 (293)
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Advances in Science and Technology, 2008
We report experimental results obtained in our laboratories in the development of Er3+- doped glass microspherical cavities for the fabrication of compact and low threshold laser sources at 1.55 μm. We investigate three different approaches in order to fabricate the microspheres including direct melting of Er3+-doped glass powders, coating of silica ...
Nunzi Conti, Gualtiero +16 more
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We report experimental results obtained in our laboratories in the development of Er3+- doped glass microspherical cavities for the fabrication of compact and low threshold laser sources at 1.55 μm. We investigate three different approaches in order to fabricate the microspheres including direct melting of Er3+-doped glass powders, coating of silica ...
Nunzi Conti, Gualtiero +16 more
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Norethisterone contraceptive microspheres
Journal of Steroid Biochemistry, 1987Two formulations of polylactic and polyglycolic acid microcapsules containing 75 and 100 mg of NET respectively were studied for a 90-day period of anticipated contraceptive effect in two groups of five women. A 200 mg dose of NET preparation was also studied for a 180-day period of anticipated contraceptive effect in 19 women.
R, Rivera +4 more
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ZnSe Semiconductor Hollow Microspheres.
ChemInform, 2003AbstractFor Abstract see ChemInform Abstract in Full Text.
Qing, Peng, Yajie, Dong, Yadong, Li
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Trading polymeric microspheres: Exchanging DNA molecules via microsphere interaction
Colloids and Surfaces B: Biointerfaces, 2015A new class of artificial molecular transport system is constructed by polymeric microspheres. The microspheres are prepared by self-assembly of poly(ethylene glycol)-block-poly(3-dimethyl(methacryloyloxyethyl)ammonium propane sulfonate), PEG-b-PDMAPS, by intermolecular dipole-dipole interaction of sulfobetaine side chains in water.
Nobuyuki, Morimoto +3 more
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Multilayered Polymer Microspheres by Thermal Imprinting during Microsphere Growth
Journal of the American Chemical Society, 2005Modulation of the polymerization temperature in precipitation polymerizations was used to form onion-type polymer microspheres consisting of multiple nested layers. Specifically, the copolymerization of chloromethylstyrene and divinylbenzene-55 in acetonitrile, at temperatures ramping between 65 and 75 degrees C, led to monodisperse, cross-linked ...
Ryu, Takekoh +3 more
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PLGA Microspheres Encapsulating siRNA
2014The therapeutic use of small interfering RNA (siRNA) represents a new and powerful approach to suppress the expression of pathologically genes. However, biopharmaceutical drawbacks, such as short half-life, poor cellular uptake, and unspecific distribution into the body, hamper the development of siRNA-based therapeutics.
DE ROSA, GIUSEPPE, SALZANO, GIUSEPPINA
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Naturwissenschaften, 1980
A systematic review of catalytic activities in thermal proteinoids and microspheres aggregated therefrom yields some new inferences on the origins and evolution of metabolism. Experiments suggest that, instead of being inert, protocells were already biochemically and cytophysically competent. The emergence and refinement of metabolism ab initio is thus
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A systematic review of catalytic activities in thermal proteinoids and microspheres aggregated therefrom yields some new inferences on the origins and evolution of metabolism. Experiments suggest that, instead of being inert, protocells were already biochemically and cytophysically competent. The emergence and refinement of metabolism ab initio is thus
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Metabolism of proteinoid microspheres
1986The literature of metabolism in proteinoids and proteinoid microspheres is reviewed and criticized from a biochemical and experimental point of view. Closely related literature is also reviewed in order to understand the function of proteinoids and proteinoid microspheres. Proteinoids or proteinoid microspheres have many activities.
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Microspheres are multiparticulate drug delivery systems which are prepared to obtain prolonged the controlled drug delivery to improve bioavailability, stability and to target the drug to specific site at a predetermined rate. They are made from polymeric waxy or other protective materials such as natural, semi synthetic and synthetic polymers ...
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