The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A facile route to synthesis silver nanoparticles into polyvinylpyrrolidone (PVP) or silica (SiO2) matrices using sol-gel method has been developed. The influence of matrices on the size and optical properties of silver nanoparticles were studied. Because the particle size increases at different rate with silver nitrate (AgNO3) concentration in different matrices, there is an up-limit for AgNO3 concentration...
In this paper MIMOS and the R&D work on the nanomaterials for sensing elements and of material functionalization will be pursued towards application of sensors. The facility for nanomaterial growth is already available together with other equipments for material characterization such as atomic force microscopy (AFM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM)...
SiC thin films (undoped and doped with SnO2 at 1 at.%, 5 at.% and 10 at.% concentrations) are prepared using pulsed laser deposition on quartz substrates kept at room temperature. The XRD patterns show a crystalline cubic phase for the undoped and 10 at.% SnO2 doped SiC thin films while 1 at.% and 5 at.% SnO2 doped SiC thin films exhibit an amorphous nature. The formation of nanorods with a non-uniform...
Silica (SiO2) filled epoxy with a particle size in μm-range has been established during the last decades. Now it has become possible to produce SiO2-filled epoxies, with filler particles in nm-range, which can be located in the polymer homogenously and without agglomerates. A new group of materials with a high percentage of inner boundaries has been designed. Therefore, the effect of this high interface...
Based on the reverse microemulsion technique, luminescent dye doped core-shell nanoparticles have been prepared by employing silica as the shell and Rubpy as the core of the nanoparticles, which have an excellent solubility and dispersibility, especially amine groups have been modified on their surface synchronously. In comparison with Rubpy, these nanoparticles show superiority in chemical and photo-chemical...
In this paper, polyimide/SiO2 (PI/SiO2) hybrid films were prepared via the Sol-Gel process and thermal imidization by the hydrolysis and condensation of triethoxysilane (TEOS), methyl-triethoxysilane (MTEOS) and dimethyldiethoxylsilane (DDS) served as inorganic precursor respectively. The coupling agent used in these hybrid films is 3-amionpropyltriethoxysilane (APrTEOS). The microstructure of hybrid...
Summary form only given. This work presents a systematic study of the surface-enhanced Raman-scattering (SERS) properties of nanoparticle island substrates (NIS) and their application for oligonucleotide target detection. Using NIS that are structurally well characterized by atomic force microscopy (AFM) and UV-VIS extinction spectrum, it demonstrates the correlation of nanostructure of substrates...
In this paper, a type of nano-hybrid polyimide/silica film was prepared by hydrolysis and condensation of methyl-triethoxysilane that served as the precursor of the inorganic moiety and produced the nano-particle of silica, in-situ, in the polyamic acid solution through a sol-gel reaction. The chemical structure and surface morphology of the films were characterized by Fourier transform infrared spectroscopy...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.