Search

Development of advanced materials with high energy density for thermochemical energy storage may contribute to the efficient utilization of solar energy and waste heat. In this work, Ce(NO3)3/Mg(OH)2 as a new heat storage material for TCEs was investigated. The effect of Ce(NO3)3 on dehydration of Mg(OH)2 was investigated by differential scanning calorimetry and thermogravimetry techniques. The addition of Ce(NO3)3 can significantly reduce the dehydration temperature and accelerate the dehydration of Mg(OH)2. The temperature reduction depends on the Ce(NO3)3 content W and reaches 29 ?C at W = 10 wt%, while the dehydration heat was reduced only slightly (1086 J/g). The new material exhibits an adjustable decomposition temperature, fast dehydration rate and large heat storage density, and may be considered as a promising candidate for thermochemical storage of concentrated solar energy.

To investigate the chemical constituents from Gynanchum paniculatum.The constituents were isolated and purified by silica gel, Sephadex LH-20 column chromatography, and preparative TLC. Their structures were identified on the basis of spectral data and physiochemical characteristics.15 compounds were isolated from 70% ethanol extract and identified as β-sitosterol(1), β-daucosterin (2), mudanoside A (3), paeonolide (4), santamarin (5), paeonol(6), annobraine (7), laricircsinol (8), α-asarone(9), 7-angelyheliotridine(10), β-amyrin(11), uridine(12), kaempferol-3-O-β-D-glucopyranosyl(1→2)α-L-arabinopyranoside(13), kaempferol-7-O-(4", 6"-di-p-hydroxycinnamoyl-2", 3"-diacetyl)-β-D-glucopyranoside(14), and (2S, E)-N-[2-hydroxy-2-(4-hydroxyphenyl) ethyl] ferulamide (15).Compounds 4, 6, 8, 11, 12 and 15 are isolated from this plant for the first time, compounds 5 and 14 are firstly isolated from the palnts of Cynanchum genus.

Highly pathogenic avian influenza (HPAI) H5N1 virus infection is still a potential threat to public health worldwide. While vaccines and antiviral drugs are currently under development, neutralizing antibodies could offer an alternative strategy to prevent and treat H5N1 virus infection. In the present study, we had developed a humanized antibody against H5N1 viruses from mouse-derived hybridoma in order to minimize its immunogenicity for potential clinical application. The humanized antibody hH5M9 was generated by transferring the mouse complementarity determining region (CDR) residues together with four key framework region (FR) residues onto the FR of the human antibody. This humanized antibody exhibited high affinity and specificity comparable to the parental mouse or chimeric counterpart with broad and strong neutralization activity against all H5N1 clades and subclades except for Egypt clades investigated. Furthermore, through epitope mapping we identified a linear epitope on the top region of hemagglutinin (HA) that was H5N1 specific and conserved. Our results for the first time reported a humanized antibody against H5N1 viruses by CDR grafting method. With the expected lower immunogenicity, this humanized antibody was expected to be more efficacious than murine or human-mouse chimeric antibodies for future application in humans.

To compare the clinical effects of transurethral detaching resection (TUDRP) and plasmakinetic transurethral resection of the prostate (PKRP) for benign prostatic hyperplasia (BPH).We collected by the single blind method the clinical data of 81 cases of BPH treated by PKRP (n=41) and TUDRP (n=40), and compared the two groups of patients in their age, preoperative prostate volume, weight of the resected gland, operation time, intraoperative bleeding, time of postoperative Foley's catheter retention, and pre- and post-operative IPSS.The post-operative IPSS was significantly higher in the PKRP than in the TUDRP group (9.95 +/- 1.54 vs. 8.70 +/- 1.13, t = 0.0029, P = 0.0059).TUDPR has a better clinical effect than PKRP in the treatment of BPH.