Topic
Liquid paraffin
About: Liquid paraffin is a research topic. Over the lifetime, 6185 publications have been published within this topic receiving 52956 citations.
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TL;DR: This fabricated WLED demonstrated high luminous efficiency and good color chromatics stability, suggesting that WLEDs based on highly fluorescent doped ZnSe QD@silica nanocomposites in combination with near-UV-LED chips may prove to be promising candidates for alternative light sources.
Abstract: This work reports the use of a near-UV-LED chip in combination with blue, green-yellow and red emitting doped ZnSe QD@silica nanocomposites to construct a novel WLED with reduced scattering and no reabsorption. Blue, green-yellow and red emitting Cu or Mn doped ZnSe QDs with enlarged Stokes shifts and similar absorption peaks (360–410 nm) were synthesized in liquid paraffin in order to solve the reabsorption problem and also obtain balanced white emission spectra. Silica shells were then coated onto the doped QDs, allowing for the refractive index of the nanocomposites to be tailored while simultaneously improving their compatibility with the epoxy resin. The transparent doped ZnSe QD@SiO2/epoxy composite was then used as a light conversion and encapsulant material in combination with the near-UV-LED chip to fabricate the WLED. This fabricated WLED demonstrated high luminous efficiency and good color chromatics stability, suggesting that WLEDs based on highly fluorescent doped ZnSe QD@silica nanocomposites in combination with near-UV-LED chips may prove to be promising candidates for alternative light sources.
50 citations
TL;DR: A novel sodium alginate based Centella asiatica (CA)-loaded hydrocolloid wound dressing providing excellent mechanical properties and improved wound healing could be a potential candidate for the treatment of various wounds.
50 citations
TL;DR: A simple method has been developed for peptide mapping of protein bands obtained by polyacrylamide gel electrophoresis based on selective acid hydrolysis of aspartyl-prolyl bonds which occur in proteins with an average frequency of 1 per 400 amino acid residues.
50 citations
TL;DR: The development of BCP microspheres and its release kinetics with doxycycline have been studied and an optimum release of 80% drug has been observed for B CP microsphere with HA:TCP = 65:35 ratio.
Abstract: Resorbable ceramics such as biphasic calcium phosphates (BCP) are ideal candidates as drug delivery systems. The BCP ceramic is based on the optimum balance of the most stable hydroxyapatite (HA) phase and more soluble tricalcium phosphate phase (TCP). Doxycycline is a broad-spectrum antibiotic used for the local treatment of periodontitis. The development of BCP microspheres and its release kinetics with doxycycline have been studied. The BCP ceramic powder were prepared by microwave processing and characterised by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) methods. The BCP microspheres were formed by liquid immiscibility effect using gelatin and paraffin oil. Difference in the morphology of the microspheres as a function of gelatin content has been observed. Scanning electron microscope indicated spherical and porous morphology of the microspheres. Drug incorporation was studied at varying pH and the pH 7 was found to be optimal for drug loading. Release pattern tend to depend on the morphology of BCP microspheres. An optimum release of 80% drug has been observed for BCP microsphere with HA:TCP = 65:35 ratio. The surface area measurement results also correlate with drug release obtained.
50 citations
Journal Article•
TL;DR: Pretreatment with an extract of Balessan prevented the prolongation of the barbiturate sleeping time associated with carbon tetrachloride-induced liver damage in mice and suggested that the plant C. opobalsamum may act as an antioxidant agent and may have a hepatoprotective effect.
Abstract: The hepatoprotective activity of an ethanolic extract of Commiphora opobalsamum (Balessan) was investigated in rats by inducing hepatotoxicity with carbon tetrachloride:liquid paraffin (1:1). This extract has been shown to possess significant protective effect by lowering serum transaminase levels (serum glutamate oxaloacetate transaminase and serum glutamate pyruvate transaminase), alkaline phosphatase and bilirubin. Pretreatment with an extract of Balessan prevented the prolongation of the barbiturate sleeping time associated with carbon tetrachloride-induced liver damage in mice. On the other hand, CCI 4 -induced low-level non protein sulfhydryl concentration in the liver was replenished by the Balessan extract. These data suggest that the plant C. opobalsamum may act as an antioxidant agent and may have a hepatoprotective effect.
50 citations