Polyurethane prodrugs with different drug contents were synthesized using polycaprolactone, hexamethylene diisocyanate and ciprofloxacin. The thermal analysis of the materials was carried out by DSC and TG. Results showed that the crystallinity of the materials reduced as the drug contents increased...

The purpose of the present study was to evaluate the anti-fatigue and anti-hypoxic effects of Lycium barbarum polysaccharides (LBP) in mice. The mice were randomly divided into four groups, a control group and three treatment groups. The treated groups received different doses of LBP (125, 250 and 500...

The study deals with the visible-light-driven photodegradation of dye pollutants, especially for methylene blue(MO) over silver phosphate photocatalyst. The Ag3PO4 photocatalyst was synthesized by a simple ultrasonic-assisted ion-exchange method in weak acidity solution including silver nitrate, sodium...

A microbial fuel cell (MFC)-based biosensor can be used to detect the water toxicity. In this study, the solitary and joint biotoxicities of heavy metal ions (Cu2+, Ni2+, Cd2+) and acephate were investigated using single-chamber MFC. The results showed that all the contaminants could individually inhibit...

To evaluate the environmental safety of the joint action of nano-TiO2 and nano-carbon, Microcystis aeruginosa was used as the model organism to explore the effect of different concentration of nano- TiO2 and nano-carbon on the growth of algae. This experiment suggested that the growth of algae will be...

Chitin has good biological activity, but the nature of the shell element is difficult to dissolve in water severely restrict its application in many fields. Through chemical modification, as the hydroxyl group to change its characteristics of different preparation of chitin, and were characterized by...

The ternary complex of Eu(Gly)2(Ala)3Cl3•2H2O(Gly = Glycine and Ala = Alanine) was synthesized and characterized by comparison of elementary analysis, chemical analysis, thermogravimetric analysis, and data with corresponding. The dissolution enthalpies of the EuCl3 •6H2O(s), 2Gly(s) + 3Ala(s) and Eu(Gly)2(Ala)3Cl3•2H2O(s)...

This design uses High Performance Capillary Electrophoresis (HPCE) to determine the Paeonol’s content in huangliansu tablets. Electrophoresis separation controlled conditions for uncoated fused silica capillary column (75 m×52 /60cm) injection height 7.5cm, and using a concentration of 40 mmol/L borax...

This design uses High Performance Capillary Electrophoresis (HPCE) to determine the Paeonol’s content in Cynanchum paniculatum. Electrophoresis separation controlled conditions for uncoated fused silica capillary column (75 m×52 /60cm) injection height 7.5cm, and using a concentration of 40mmol/L borax...

T-5 strains of Mortierella were screened from soil sample, which had a high lipid contents. Through the orthogonal experiment, the optimization conditions of lipid were that temperature was 28°C, pH was 6.0, glucose concentration was 100g/L and inorganic nitrogen source concentration was 1g/L. The results...

The fluidization condition in the SO2 photocatalytic reactor was optimizated by simulating the aspects of raw materials’ physical properties (particle size, density) and operating conditions(packing height, inlet gas velocity). The results indicated that particle size and inlet gas velocity had a remarkable...

SH3 (Src homology 3) domain is a small modules units (~60 amino acids) that are important for the generation of protein-protein interactions in cellular signal transduction pathways. SH3 domains commonly bind to proline-rich sequences. Here, we explore the SH3 domain proteins in Monascus purpureus. A...

In all eukaryotes, the peripheral endoplasmic reticulum (ER) branches out of the nuclear envelope as a membrane network of interconnected tubules and membrane sheets with a single lumen. In yeast, Rtn1p and Yop1p are major, redundant components required to maintain the tubular ER under normal circumstances....

This study was conducted to investigate the effect of natural flavonoid quercetin on exercise-induced oxidative damage. Twenty-eight rats were randomly divided into four groups, a control and three quercetin administered groups (20, 40 and 60 mg/kg). Quercetin was orally administered to rats once a day...

This design uses High Performance Capillary Electrophoresis (HPCE) to determine the Paeonol’s content in yanyan tablets. Electrophoresis separation controlled conditions for uncoated fused silica capillary column (75 m×52 /60cm) injection height 7.5cm, and using a concentration of 40mmol/L borax solution...

The High Performance Capillary Electrophoresis (HPCE) method was established for thr determination the paeonol content in Mingmu Dihuang pill. 40mmol/L borax solution buffer was used for the electrophoresis analysis. Measured paeonol content in Mingmu Dihuang pill was 1.698 mg/g (RSD=10.8%) (n = 4).

The influence of feed particle size on the pyrolysis products, pyrolysis time, pyrolysis energy consumption and the percentage of dust content in volatile product was investigated in the fixed bed reactor. The results showed that with feed particle size increase, pyrolysis time and the percentage of...

In this paper, four lab-scale sequencing batch reactors (SBRs) operated with anaerobic/anoxic configuration were long-term cultured, respectively with different ratios of propionic to acetic acid as carbon sources. Effects of propionic to acetic acid ratio on polyhydroxyalkanoates (PHA) formation, denitrifying...

By enzyme-linked immunosorbent ELISA experiments, Determination of human skin fibroblasts (HSF) and macrophages (white blood cells by monocytes in THP 1) induced by PDGF after 6-carboxyl chitin stimulation, TGF-beta, and the expression of bFGF. The results showed that 6-carboxyl chitin can promote the...

This paper mainly studies the effected of fuel injection time on combustion and emissions of the four kinds of different proportions of N-butanol alcohol and diesel fuel mixed without changing the injection duration and mass under the software of FIRE. It provides the theory basis for the further development...

Nano-ZnO was successfully synthesized by a sol-gel method with an average size of 26.1 nm. The nano-ZnO was applied to coat the knitted poly(lactic acid) (PLA) fabric with or without further coating using a polyacrylate binder, and the UV protection ability and antibacterial activity of the coated fabric...

Bioconversion of cellulose and xylose is critical for the economically utilization of lignocellulose resources. Cellulose and xylose utilized strain Bacillus cereus Yc-A1 with highly ethanol endurance ability was present. The strain Yc-A1 was identified according to the physiological and phylogenetic...

The Japanese banana flower and pollen were analyzed by gas chromatography-mass spectrometry (GC-MS) technique, coupled with head-space solid micro-extraction (HS-SPME). The relative percentage of compounds were measured by retention index and peak area normalization method. A total of 48 volatiles were...

Therelationship between the energy of a high-speed proton when impacting onthe N-4 nuclear emulsion plane perpendicularlyand its range in the emulsion was investigated using classical SRIMMonte Carlo programand curve fitting method. A definite analytic expression was derived from this simulation with...

Based on the topological theory and MATLAB program, molecular connectivity index (Xi), molecular shape index (Ki), electrotopological state index (Ei) and electro-negativity distance vector (Mi) were calculated for 117 nitrogen-containing polycyclic aromatic hydrocarbons. A eight-element regression model...

In this study, the flocculation and sedimentation performance of thermophilic activated sludge with single and multiple dosing of trivalent aluminum (Al3+) were studied. The thermophilic activated sludge samples were cultivated in sequencing batch reactors at 55 °C. The dosages of Al3+ were 0.125, 0.5,...

Polyaniline (PANI) nanofibers were prepared in dilute polymerization system in the presence of organic solvents including acetone and ethanol. The as-prepared PANI nanofibers were characterized by field emission scanning electron microscopy, ultraviolet-visible absorption spectroscopy, Fourier transform...

Polyaniline (PANI) was prepared through in-situ chemical oxidative polymerization of aniline monomers in the presence of nanocelluloses. The as-prepared nanocomposite was characterized by scanning electron microscopy, Fourier transform infrared spectrometry, X-ray diffraction analysis and electrochemical...

The cellulose acetate (CA) nanofibrous mat was fabricated by electrospinning under optimized spinning conditions in this work. The morphology, chemical structure, thermal stability and hydrophilic property of as-prepared CA nanofibrous mat were characterized by scanning electron microscopy, Fourier transform...

A new type of macroporous weakly basic anion exchange resin (HFO D301R) was used to adsorption of naphthalene sulfonic acid in different environments. The effects of temperature, salt concentration and pH value of the solution on HFO- naphthalene sulfonic acid resin adsorption effect were studied The...

Rare earth element (REE) compositions in ceramics from the Tongguanyao site (TGY) of China were determined by the inductively coupled plasma-mass spectrometry (ICP-MS) to compare their sources. Total REE concentrations of 14 samples range from 120.9 to 453 g•g-1, with an average value of 228.5 g•g-1....

Phenol,as one of the main constituents of biomass tar, was used to gasify for hydrogen in this paper. It was studied that the influences of the reaction temperature, steam / biomass (S / B), load and the preparationof the catalyst on the hydrogen yield, gasification efficiency and hydrogen concentration....

Objective: Salvia miltiorrhiza is a traditional Chinese herb medicine and is widely used in clinic application. This study is intended to extract flavones from Salvia miltiorrhiza by ultrasonic method in order to evaluate its antioxidation activity. 2. Methods: (1) Spectrophotometry is used to determine...

A fast, eco-friendly and reliable method combining dispersive liquid-liquid microextracion (DLLME) with capillary gas chromatography (GC) was developed for the simultaneous determination of p-dichlorobenzene (p-DCB), o-dichlorobenzene (o-DCB), nitrobenze (NB), 1,2,4-trichlorobenzene (TCB), and 3-nitrotoluene...

The synthesis of (R)-3-((4-methoxybenzyl)oxy)butanal, which is an intermediate of (-)-Allosedridine, a 2-substituted piperidine alkaloid, was described, The route started from (R)-methyl 3-hydroxybutanoate via a PMB protection, a LiAlH4 reduction and a Swern oxidation.

Synthesis of (±)-2-(6-ethyl-2-(4-methoxyphenyl)-1, 3-dioxan-4-yl) acetaldehyde, an important intermediate of (±)-Cyanolide A (1), was described, which was commenced from commercially available methyl acetoacetate.

A synthetic design of (±)vertine and (±)-lythrine was described, and the intermediate, N-protected 2-methoxypiperidine, was synthesized, which contains a protection, reduction and etherification

A synthetic design of Entecavir was described, and the intermediate, (S)-N-methoxy -3-((4-methoxybenzyl)oxy)-N-methylpent-4-enamide, was synthesized using acrylaldehyde as the starting material, which was obtained via an Evans Aldol reaction, Weinreb amide formation, and a PMB protection.

An ultrasonic microdialysis coupled with online capillary electrophoresis electrochemiluminescence method has been established for the sensitive determination of plasma protein binding. The drug and blood plasma were mixed in different molar ratios and incubated at 37 °C in 10 mmol/L phosphate buffer...

To study the influence of doping on p-type solar cells, we use the p-type NiO/CdTeO3 structure to fabricate Mg-doped CdTeO3 quantum dot-sensitized solar cells (QDSSCs), by doping CdTeO3-sensitized NiO photocathode with dopant element Mg. When the doping ratio of Mg is 1:30 and the successive ionic layer...

Cytotoxic activity of Artesunate(ART) was determined by MTT assay at various concentrations ranging from 0 to 100 mol/L on Hela cells. The apoptosis effect of Hela cells treated with ART was observed by a phase contrast microscope. The Apoptosis and its mechanism induced by ART were also studied by real-time...