Assessment of hemostatic ability of biomaterial based on chitosan andL. extract.

The biomaterials based on chitosan andL. extract have been prepared by microemulsion method and solution method (with and without sodium tripolyphosphate (STPP) as a cross-linking agent). The main component inL.

A longitudinal epidemiology study of fluoroquinolone-nonsusceptible Klebsiella pneumoniae reveals an increasing prevalence of qnrB and qnrS in Taiwan.

Background: Our objective was to investigate the prevalence of plasmid-mediated quinolone resistance (PMQR) genes in fluoroquinolone-nonsusceptible Klebsiella pneumoniae (FQNSKP) in Taiwan, 1999-2022.

Methods: A total of 938 FQNSKP isolates were identified from 1966 isolates. The presence of PMQR and virulence genes, antimicrobial susceptibility, capsular types, and PMQR-plasmid transferability were determined.

Synthesis and characterization of some novel polythiophene derivatives containing pyrazoline.

Eight polythiophene derivatives containing pyrazoline side groups were synthesized by a chemical oxidative coupling polymerization using FeCl. The crystal structures of four monomers were determined which confirm the almost perpendicular orientation of the thiophene and pyrazoline rings, while the other substituents are more coplanar. Analyses of IR, H-NMR, Raman and UV-Vis spectra demonstrated that the suggested polymerization was successful to generate the synthesized polythiophenes with the expected structures.

A Longitudinal Nine-Year Study of the Molecular Epidemiology of Carbapenemase-Producing Isolated From a Regional Hospital in Taiwan: Predominance of Carbapenemase KPC-2 and OXA-48.

Enterobacterales clinical isolates are now being resistant to clinically achievable concentrations of most commonly used antibiotics that makes treatment of hospitalized patients very challenging. We hereby determine the molecular characteristics of carbapenemase genes in carbapenem-resistant (CRE) isolates in Taiwan. A total of 455 CRE isolates were identified between August 2011 to July 2020.

Distinct Characteristics of Isolated from Patients with Urinary Tract Infections in a Medical Center at a Ten-Year Interval.

causing urinary tract infections (UTIs) are one of the most common outpatient bacterial infections. This study aimed to compare the characteristics of isolated from UTI patients in a single medical center in 2009-2010 (n = 504) and 2020 (n = 340). The antimicrobial susceptibility of was determined by the disk diffusion method.

DFT study on some polythiophenes containing benzo[]thiazole and benzo[]oxazole: structure and band gap.

The content of this paper focuses/shed light on the effects of X (X = S in P1 and X = O in P2) in CHNSX and R (R = H in P3, R = OCH in P4, and R = Cl in P5) in CHONS-R on structural features and band gaps of the polythiophenes containing benzo[]thiazole and benzo[]oxazole by the Density Function Theory (DFT) method/calculation. The structural features including the electronic structure lattice constant (a), shape, total energy (E) per cell, and link length (r), are measured via band gap (E) prediction with the package of country density (PDOS) and total country density (DOS) of material studio software. The results obtained showed that the link angle and the link length between atoms were not changed significantly while the E was decreased from E = - 1904 eV (in P1) to E = - 2548 eV (in P2) when replacing O with S; and the E of P3 was decreased from E = - 3348 eV (in P3) when replacing OCH, Cl on H of P3 corresponding to E = - 3575 eV (P4), - 4264 eV (P5).

Crystal structure of potassium hydrogen bis-(()-2-{4-[3-(thio-phen-3-yl)acrylo-yl]phen-oxy}acetate).

The synthesis and spectroscopic data of ()-2-{4-[3-(thio-phen-3-yl)acrylo-yl]phen-oxy}acetic acid are described. Crystallization from an ethanol-water mixture resulted in the title compound, CHKOS or [K(CHOS)(CHOS)] , containing one mol-ecule of the acid and one mol-ecule of the potassium salt in the asymmetric unit. Both mol-ecules share the H atom between their carboxyl groups and a potassium ion.

DFT Prediction of Factors Affecting the Structural Characteristics, the Transition Temperature and the Electronic Density of Some New Conjugated Polymers.

Conjugated polymers are promising materials for various cutting-edge technologies, especially for organic conducting materials and in the energy field. In this work, we have synthesized a new conjugated polymer and investigated the effect of distance between bond layers, side-chain functional groups (H, Br, OH, OCH and OCH) on structural characteristics, phase transition temperature (T), and electrical structure of CHOS using Density Functional Theory (DFT). The structural characteristics were determined by the shape, network constant (a, b and c), bond length (C-C, C-H, C-O, C-S, C-Br and O-H), phase transition temperatures, and the total energy (E) on a base cell.

Synthesis, crystal structure and Hirshfeld surface analysis of diethyl 2,6-dimethyl-4-(thio-phen-3-yl)-1,4-di-hydro-pyridine-3,5-di-carboxyl-ate.

In the title compound, CHNOS, the 1,4-di-hydro-pyridine ring has an envelope conformation with the C atom at the flap. The thio-phene ring is nearly perpendicular to the best plane through the 1,4-di-hydro-pyridine ring, the dihedral angle being 82.19 (13)°.

Crystal structure of two '-(1-phenyl-benzyl-idene)-2-(thio-phen-3-yl)acetohydrazides.

The synthesis, spectroscopic data, crystal and mol-ecular structures of two '-(1-phenyl-benzyl-idene)-2-(thio-phen-3-yl)acetohydrazides, namely '-[1-(4-hy-droxy-phen-yl)benzyl-idene]-2-(thio-phen-3-yl)acetohydrazide, CHNOS, (3a), and '-[1-(4-meth-oxy-phen-yl)benzyl-idene]-2-(thio-phen-3-yl)acetohydrazide, CHNOS, (3b), are described. Both compounds differ in the substituent at the position of the phenyl ring: -OH for (3a) and -OCH for (3b). In (3a), the thio-phene ring is disordered over two orientations with occupancies of 0.

Some chalcones derived from thio-phene-3-carbaldehyde: synthesis and crystal structures.

The synthesis, spectroscopic data and crystal and mol-ecular structures of four 3-(3-phenyl-prop-1-ene-3-one-1-yl)thio-phene derivatives, namely 1-(4-hydroxy-phen-yl)-3-(thio-phen-3-yl)prop-1-en-3-one, CHOS, (), 1-(4-meth-oxy-phen-yl)-3-(thio-phen-3-yl)prop-1-en-3-one, CHOS, (), 1-(4-eth-oxy-phen-yl)-3-(thio-phen-3-yl)prop-1-en-3-one, CHOS, (), and 1-(4--bromophen-yl)-3-(thio-phen-3-yl)prop-1-en-3-one, CHBrOS, (), are described. The four chalcones have been synthesized by reaction of thio-phene-3-carbaldehyde with an aceto-phenone derivative in an absolute ethanol solution containing potassium hydroxide, and differ in the substituent at the position of the phenyl ring: -OH for , -OCH for , -OCHCH for and -Br for . The thio-phene ring in was found to be disordered over two orientations with occupancies 0.