Fe-SBA-15 and Fe-SBA-16 ordered mesoporous materials were synthesized via hydrothermal treatment by in situ incorporating Fe(III) oxalate complex species into framework of SBA-15 and SBA-16. The prepared samples were characterized by different techniques such as XRD, BET, UV- Vis and TEM. The obtained results showed that both Fe-SBA-15 and Fe-SBA-16 samples have an ordered mesoporous structure. The hexagonal symmetry of Fe-SBA-15 and cubic ones of Fe-SBA- 16 were not affected by incorporation of Fe into SBA-15 and SBA-16 frameworks.
NovelN,N¢-diacyl-1,3-diaminopropyl-2-carbamoyl bivalent cationic lipids
were synthesized and their physicochemical properties in lamellar assemblies
with and without plasmid DNA were evaluated to elucidate the structural
requirements of these double-chained pH-sensitive surfactants for potent
non-viral gene delivery and expression.
Food analysis is the discipline dealing with the development, application and
study of analytical procedures for characterizing the properties of foods and their
constituents. These analytical procedures are used to provide information about a wide
variety of different characteristics of foods, including their composition, structure,
physicochemical properties and sensory attributes.
Milk evolved as a means of providing for the postnatal needs of the developing
mammalian neonate. Any perception that milk is a simple, homogeneous fluid does
not adequately acknowledge the remarkable array of complex activities and
functionalities of its constituent components.
The absorption, distribution, metabolism, and excretion of a drug all involve its passage across cell
membranes. Mechanisms by which drugs cross membranes and the physicochemical properties of
molecules and membranes that influence this transfer are, therefore, important. The determining
characteristics of a drug are its molecular size and shape, degree of ionization, relative lipid
solubility of its ionized and nonionized forms, and its binding to tissue proteins.
Titanium oxide ST01, ST31, TiO2 catalysts modified by V5+, N2+ and supported on MCM41 and SiO2 have been used for photooxidation of p-xylene in gas phase. Physicochemical properties of catalysts were determined by the methods of BET Adsorption, Xray Diffraction (XRD), UV-Vis spectroscopy, and atom adsorption spectroscopy (AAS) methods. The photocatalytic activity of catalysts were determined after thermal treatment as well as UV lighting. The common observation is that the higher temperature of treatment the lower conversion of p-xylene obtained.
NFκB plays an important role in the immune system in all organisms. In this study, physicochemical properties and modelling of finfish NFκBIα protein was analysed using in silico approach. Finfish species: guppy (Poecilia reticulate), Bicolor damselfish (Stegastes partitus), Channel catfish (Ictalurus punctatus), Coelacanth (Latimeria chalumnae), and Australian ghostshark (Callorhinchus milii) were used in this study.
Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Minireview cung cấp cho các bạn kiến thức về ngành y đề tài: Core promoters are predicted by their distinct physicochemical properties in the genome of Plasmodium falciparum...
Fe-Pt materials have been widely prepared by vacuum evaporation technique. Recently, chemical and physicochemical methods have been successfully used to make Fe-Pt nanoparticles, thin films. This paper reported another physicochemical method, namely sonoelectrodeposition, to produce Fe-Pt nanoparticles. In the sonoelectrodeposition, the electrodeposition process was assisted with a sonicator. The Ti horn of the sonicator played a role as the cathode on which Fe-Pt nanoparticles were deposited.
The repressor protein and cognate operator DNA of any temperateStaph-ylococcus aureusphage have not been investigated in depth, despite having
the potential to enrich the molecular biology of the staphylococcal system.
In the present study, using the extremely pure repressor of temperate
Staphylococcus aureusphage/11 (CI)
Bothrops snake venoms are known to induce local tissue
damage suchas hemorrhage andmyonecrosis. Theopossum
Didelphis marsupialisis resistant to these snake venoms and
has natural venom inhibitors in its plasma. The aim of this
work was to clone and study the chemical, physicochemical
andbiological properties ofDM64, an antimyotoxic protein
from opossum serum. DM64 is an acidic protein showing
15% glycosylation andwith amolecular mass of 63 659 Da
when analysed by MALDI-TOF MS.
Current theories agree that there appears to be no unique feature responsi-ble for the remarkable heat stability properties of hyperthermostable pro-teins. A concerted action of structural, dynamic and other physicochemical
attributes are utilized to ensure the delicate balance between stability and
functionality of proteins at high temperatures.
Random PCR mutagenesis was applied to theThermus
thermophilus xylA gene encoding xylose isomerase. Three
cold-adapted mutants were isolated with the following
amino-acid substitutions: E372G, V379A (M-1021),
E372G, F163L (M-1024) and E372G (M-1026). The wild-type and mutated xylAgenes were cloned and expressed
in Escherichia coliHB101 using the vector pGEMÒ-T
Easy, and their physicochemical and catalytic properties