[PDF] Top 20 Representaciones sociales del SIDA y percepción de riesgo entre estudiantes universitarios

... The immobilization of cellulase onto non-porous ultrane silica particles was ...studied. Cellulase was extracted from a Trichoderma reesei culture after partial purication ... See full document

... immobilized cellulase was higher as com- pared to free enzyme and the results obtained are sum- marized in Table ...maximum immobilization efficiency ...present immobilization study using xerogel ... See full document

... paper, immobilization of penicillin G acylase onto non-porous ultrane silica particles has been ...for immobilization was found to be ...Although immobilization of the ... See full document

... “cellulosomes”, cellulase complexes with both type of enzymes (with and without the ...commercial cellulase from the fungus Aspergillus niger ...enzyme immobilization provides the advantage of both ... See full document

... UFP and NP are in the respirable size range and have a physicochemical composition that enables their penetration into airways, parenchyma and alveolar airspace in the lung. The extremely small size and large surface ... See full document

... Analysis of the data shown in the table indicates that increasing the amount of chitosan in the composition of the sorbent 2-4 times causes a decrease in the specific surface area by 36-43% and an increase in the total ... See full document

... the particles in inducing cell necrosis used in the study, together with the Ca-modulating antagonists, particularly after 4 hours incubation ...The ultrafine carbon black particles (P90 and EC90) ... See full document

... superconductivity in platinum metals and alloys transition metals in organic syntheses, a ultrafine metal particles in organic syntheses, a Rhodium, compounds, ErRh,B,, ferromagne[r] ... See full document

... Ceramics are defined as solids composed of compounds that contain metallic and non metallic elements and the atoms in the compound are held together with strong atomic forces either ionic or covalent bonds ... See full document

... Widely used one angle DLS measurement does not solve the problem of determining the size of agglomer- ated sample. Very often, it is possible to measure an average particle size of the agglomerated colloid in ques- tion, ... See full document

... We attempted to address oxidative stress in the plasma compartment as a potential mechanism of action, and found that the particle exposure in the present study did not alter the lagtime of lipoprotein oxidation or ... See full document

... [17,28], particles embedded with the lipid membrane or adsorbed at the surface ...[30-31], particles internalized inside the lipid compartment ...several particles like in cellular endocytosis ...of ... See full document

... It is worth mentioning that , in previous related researsch studies, simple nano silicas were considered as a drug delivery systems, yet, the present study tries to modify nanosilica layers employing OH, NH2 functional ... See full document

... of porous concrete ...nano silica become interest in modern concrete technology to obtain high performance ...of porous concrete pavement containing nano ...nano silica can be used as cement ... See full document

... potential silica drug-delivery systems, some important features have to be con- ...the particles used during the experiments is one of ...and silica particles have to be enough small to be ... See full document

... to ultrafine particles in the surrounding urban area of in-land passenger ferries, namely in the present context of increasing number of ferry movement on Tagus ... See full document

... terminated porous silicon grains and micron-size oxide-terminated porous silicon grains) were incorporated into silica aerogels at the gel preparation ...of silica aerogel without silicon ... See full document

... A new chiral stationary phase (CSP) was prepared by attachment of macrocyclic glycopeptide antibiotic eremomycin to the epoxy-activated silica under mild conditions. In contrast to CSP with immobilized vancomycin, ... See full document

... most toxic heavy metal ion with a distinct toxicological profile, and arises from a variety of natural and human- generated sources [10–12], this common pollutant poses severe risks for human health and natural ... See full document

... It is not common for oral vaccines to be substitutes for injection- based vaccination, but achievements have been made utilizing NP/MP carriers with adjuvant activities for oral vaccination. NP/MP conveyors for oral ... See full document