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Wyniki wyszukiwania dla: silica aerogel
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Aggregation of Rhodamine 6G in titanium dioxide nanolayers and bulk xerogels
PublikacjaNanolayers and bulk xerogels of Rhodamine 6G (Rh6G) in titanium dioxide (Rh6G/TiO2) were prepared using the sol–gel method. The spectroscopic and structural properties of these two types of hybrid matrices were studied as a function of dye concentration. In both cases absorption, fluorescence and time resolved emission spectra show the formation of fluorescent aggregates. The observed stronger changes in characteristics of bulk...
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Aerosol Science and Engineering
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In silico design of telomerase inhibitors.
PublikacjaTelomerase is a reverse transcriptase enzyme involved in DNA synthesis at the end of linear chromosomes. Unlike in most other cells, telomerase is reactivated most cancerous cells and, therefore, has become a promising new anticancer target. Despite extensive research, direct telomerase inhibitors have yet not been introduced to the clinics because of the complexity of this enzyme. Structures of this protein from simple organisms...
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Dermatologica Sinica
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In Silico Biology
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VIROLOGICA SINICA
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In Silico Plants
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STATISTICA SINICA
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Complex investigations of structural and thermal properties of silica-titania adsorbents
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Characterization of low-dose doxorubicin-loaded silica-based nanocomposites
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Nanocomposite for photonics — Nickel pyrophosphate nanocrystals synthesised in silica nanoreactors
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Novel method controlled synthesis of silica coated carbon nanotubes
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Mesoporous Silica Nanospheres Functionalized by Tio2 as a Photoactive Antibacterial Agent
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Antibacterial performance of nanocrystallined titania confined in mesoporous silica nanotubes
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Surface-Plasmon-Coupled Emission of Rhodamine 110 in a Silica Nanolayer
PublikacjaThe first observation of strong directional surface-plasmon-coupled emission (SPCE) of Rhodamine 110 in silica nanofilms deposited on silver nanolayers is reported. The preparation of the material is described in detail. The intensity of SPCE exceeds 10 times that of free space fluorescence and total linear light polarization in the SPCE ring is observed. A new experimental setup and an original data collection method is presented....
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The Effect of Adhesive Additives on Silica Gel Water Sorption Properties
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Wettability and Stability of Naproxen, Ibuprofen and/or Cyclosporine A/Silica Delivery Systems
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Investigating the Interaction Between Streptomyces sp. and Titania/Silica Nanospheres
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Mesoporous silica nanoflakes – Biocompatibility, cellular uptake and drug transport
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Mechanical properties of two-stage concrete modified by silica fume
PublikacjaAbstract. Two-stage concretes, despite the fact that they have proven themselves in various types of construction, have not been studied to the same extent as traditional heavy concretes. Therefore, the article developed the composition of frame concrete with various additives in the composition of the cement-sand mortar. A comparison of the mechanical characteristics of the developed compositions with the addition of silica fume...
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Studies of the separation performance of silanized silica gel for simulated distillation
PublikacjaWe present the results of investigations of the chromatographic (sorptive) properties of silanized silica gel as a stationary phase for gas chromatography used for simulated distillation. Commercially available silanized sorbent (particle diameter range 63–200 m, average pore size 60 Å) was sieved to obtain the 80–100 mesh fraction (180–150 m). The obtained results revealed that silanized silica gel allows the complete separation...
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Concentration levels of selected analytes in the gas phase of an e-cigarette aerosol
PublikacjaThe aerosols generated from e-cigarettes are composed of liquid and gas phases resulting from vapourized e-liquid. The apportioning of substances from e-liquid into the liquid and gas phases during e-cigarette use has not been extensively studied. Partitioning of e-liquid components between the gas and the liquid phase of the aerosol influences the substances inhaled and exhaled by the users, leading to second-hand exposure. It...
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Nitrogen‐Doped Porous Graphene‐Based Aerogels toward Efficient Heavy Metal Ion Adsorption and Supercapacitor Applications
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Chemically reduced graphene oxide based aerogels - Insight on the surface and textural functionalities dependent on handling the synthesis factors
PublikacjaEfficient adjusting of reduced graphene oxide aerogels properties requires information about experimental factor-aerogel property relationship. In this work, the reduced graphene oxide aerogels surface and textural functionalities in relation to precursor concentration, gelation time and hydrogel freezing temperature were studied in detail, with the use of dynamic adsorption method of gaseous organic probes and experimental design....
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Hyperbranched polyethylenimine functionalized silica/polysulfone nanocomposite membranes for water purification
PublikacjaHyperbranched polyethyleneimine functionalized silica (PEI-SiO2) nanoparticles with considerable hydrophilicity were synthesized and incorporated into a polysulfone (PSF)/dimethylacetamide (DMA)/polyvinylpyrrolidone (PVP) membrane casting solution in five different ratios to fabricate PEI-SiO2/PSF nanocomposite membranes using nonsolvent-induced phase separation. The hydrophilic PEI-SiO2 nanoparticles were characterized by TEM,...
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Luminescence kinetics in silica gel doped with Tb3+ ions and ZnS:Mn2+ nanocrystals
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Characterization of Modified Silica Gel as a Source of Ethene for Standard Gaseous Mixtures
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Formulation, characterisation and in vitro studies of doxorubicin-loaded silica–polydimethylsiloxane granules
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The Influence of Silica Fume on the Mechanical and Thermal Parameters of Portland Cement Concretes
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Functionalized mesoporous silica thin films as a tunable nonlinear optical material
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Cold sintering of colloidal silica particles using different alkali solutions
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Magnetic Silica Nanotubes: Synthesis, Drug Release, and Feasibility for Magnetic Hyperthermia
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Synthesis of Polylysine/Silica Hybrids through Branched-Polylysine-Mediated Biosilicification
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Aquatic biomass containing porous silica as an anode for lithium ion batteries
PublikacjaA composite electrode was manufactured by pyrolysis of Red Algae (Polysiphonia fucoides) covered by diatoms (Diatomophyceae). Electrodes were tested as a half cell with capacity of 500 mA h g−1 after 80 cycles. XPS analysis shows formation of lithium silicate under reduction of silica in an aprotic electrolyte containing LiPF6 salt.
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Surface Plasmon-Coupled Emission of Rhodamine 110 Aggregates in a Silica Nanolayer
PublikacjaFirst analysis of strong directional surface plasmon-coupled emission(SPCE) of ground-state formed intermolecular aggregates of Rhodamine 110 (R110) insilica nanofilms deposited on silver nanolayers is reported. Until now, the processes ofenergy transport and its trapping due to aggregate formation have not been studied in the presence of SPCE. A new approach to multicomponent systems with weakly and strongly fluorescent centers...
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Effect of incorporation route on dispersion of mesoporous silica nanospheres in cement mortar
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Chemical and thermal stability of core-shelled magnetite nanoparticles and solid silica
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The effects of silica/titania nanocomposite on the mechanical and bactericidal properties of cement mortars
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Determination of Local Dye Concentration in Hybrid Porous Silica Thin Films
PublikacjaThe idea of determination of local dye concentration in a nanoporous matrix is proposed based on donor − acceptor energy transfer. The method was tested for a Rhodamine 110 − Rhodamine 101 system in silica and methylated silica nanolayers. Evaluation of acceptor (Rhodamine 101) local concentration was carried out by comparing the results of Monte Carlo simulation of energy transfer from donor (Rhodamine 110) to acceptor (Rhodamine...
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Reactions of methyl radicals with silica supported silver nanoparticles in aqueous solutions
PublikacjaSilica supported silver nanoparticles (Ag°–SiO2 –NCs, NCs=nanocomposites) suspended in aqueous solutions are efficient catalysts for the dimerization of methyl radicals to produce ethane, while bare silica is quite inert towards the interaction with methyl radicals. In the presence of small amounts of ethanol adsorbed on the SiO2 surface, the reaction path with methyl radicals is changed and methane is formed as the major product.
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Model odzieży ciepłochronnej z funkcją termoregulacji, wykorzystującej aerożel i materiały przemiany fazowej (PCM) – badania wstępne
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Biblica
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JOURNAL OF AEROSOL SCIENCE
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Rheological properties and stability of shear thickening fluids based on silica and polypropylene glycol
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Synthesis of sol-gel mesoporous silica materials providing a slow release of doxorubicin
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Synthesis and characterization of modified silica gel as an intermediate in the generation of gaseous standard mixtures
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Preparation and in vitro characterisation of bioactive mesoporous silica microparticles for drug delivery applications
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Synthesis and application of doxorubicin-loaded silica gels as solid materials for spectral analysis
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Synthesis and in vitro characterization of freeze-dried doxorubicin-loaded silica/PEG composite
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Potential application of pure silica optical flat fibers for radiation therapy dosimetry
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