Comparative Study of the Structural Characteristics and Bioactivity of Polysaccharides Extracted from Hemsl. Using Different Solvents.

The polysaccharides extracted from are thought to have anti-urolithiasis activity in Drosophila kidney stones. This study aimed to assess the effects of different extraction solvents on the yield, chemical composition, and bioactivity of polysaccharides from . polysaccharides were extracted by using four solutions: hot water, HCl solution, NaOH solution, and 0.

Triangular Silver Nanoplate-Coated ZnO Nanoflowers Photocatalysis of Norfloxacin Under Visible Light.

T-Ag/ZnO nanoflowers were successfully fabricated via two steps methods on zinc foil. The chemical composition of norfloxacin was investigated by FTIR spectroscopy. The morphology, composition, and structural and optical properties of the as-synthesized materials were characterized.

Dendrimer modified magnetic nanoparticles as adsorbents for removal of dyes.

The recycling of dendrimers using an ultrafiltration membrane during wastewater treatment is extremely inconvenient. With the combination of magnetic nanoparticles (MNP) with dendrimers, the problem of the recovery of tiny particulate matter from an aqueous solution can be overcome using its magnetism. In this study, the coprecipitation method was adopted to prepare MNP, and then MNP-G(n) (n, generations of dendrimers) was prepared with the formation of the dendrimers on the surface of the MNP.

Establishment of a Fast Chemical Identification System for screening of counterfeit drugs of macrolide antibiotics.

A Fast Chemical Identification System (FCIS) consisting of two colour reactions based on functional groups in molecules of macrolide antibiotics and two TLC methods was developed for screening of fake macrolide drugs. The active ingredients could be extracted from their oral preparations by absolute alcohol. Sulfuric acid reaction as a common reaction of macrolides was first used to distinguish the macrolides from other types of drugs and then 16-membered macrolides and 14-membered ones were distinguished by potassium permanganate reactions depending on the time of loss of colour in the test solution; after which a TLC method carried out on a GF(254) plate (5 cm x 10 cm) was chosen to further identification of the macrolides.

[Screening of molecular markers of lung squamous cell carcinoma by microarrays].

Objective: To identify molecular markers of lung squamous cell carcinoma by cDNA microarray technique.

Methods: cDNA expression profiles were examined by microarrays of 6 surgical specimens of stage I lung squamous cell carcinomas. Those genes, either up-regulated or down-regulated in every specimen studied, were identified.