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Showing 1 to 12 of 1058 entries
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Synthesis of dibenzo[c,e]oxepin-5(7H)-ones from benzyl thioethers and carboxylic acids: rhodium-catalyzed double C-H activation controlled by different directing groups.

Angewandte Chemie (International ed. in English)

Zhang XS, Zhang YF, Li ZW, Luo FX, Shi ZJ.
PMID: 25757707
Angew Chem Int Ed Engl. 2015 Apr 27;54(18):5478-82. doi: 10.1002/anie.201500486. Epub 2015 Mar 10.

A rhodium(III)-catalyzed cross-coupling of benzyl thioethers and aryl carboxylic acids through the two directing groups is reported. Useful structures with diverse substituents were efficiently synthesized in one step with the cleavage of four bonds (CH, CS, OH) and the...

Design verification of large time constant thermal shields for optical reference cavities.

The Review of scientific instruments

Zhang J, Wu W, Shi XH, Zeng XY, Deng K, Lu ZH.
PMID: 26931831
Rev Sci Instrum. 2016 Feb;87(2):023104. doi: 10.1063/1.4941718.

In order to achieve high frequency stability in ultra-stable lasers, the Fabry-Pérot reference cavities shall be put inside vacuum chambers with large thermal time constants to reduce the sensitivity to external temperature fluctuations. Currently, the determination of thermal time...

Interplay between apoptosis and autophagy in colorectal cancer.

Oncotarget

Qian HR, Shi ZQ, Zhu HP, Gu LH, Wang XF, Yang Y.
PMID: 28977986
Oncotarget. 2017 Jun 27;8(37):62759-62768. doi: 10.18632/oncotarget.18663. eCollection 2017 Sep 22.

Autophagy and apoptosis are two pivotal mechanisms in mediating cell survival and death. Cross-talk of autophagy and apoptosis has been documented in the tumorigenesis and progression of cancer, while the interplay between the two pathways in colorectal cancer (CRC)...

Caragaphenol a induces reactive oxygen species related apoptosis in human gastric cancer cells.

American journal of translational research

Peng QQ, Wang K, Cheng KJ, Yang HG, Qiu JG, Zhang WJ, Jiang QW, Yang Y, Zheng DW, Huang JR, Wei MN, Shi Z, Wang W.
PMID: 28861171
Am J Transl Res. 2017 Aug 15;9(8):3804-3815. eCollection 2017.

Caragaphenol A (CAA) is a novel resveratrol trimer isolated from the roots of Caraganastenophylla. However, the biological activity of CAA is still unknown. In the present study, we investigated the anticancer effects of CAA on gastric cancer cells. CAA...

Preparation and evaluation of a novel bonded imidazolium ionic liquid as stationary phase for gas chromatography.

Journal of separation science

Dai JL, Zhao LH, Shi JH.
PMID: 28481044
J Sep Sci. 2017 Jul;40(13):2769-2778. doi: 10.1002/jssc.201700130. Epub 2017 Jun 09.

1-Butyl-3-[(3-trimethoxysilyl)propyl]imidazolium chloride ionic liquid was synthesized and chemically modified onto the inner wall of a fused capillary column as a stationary phase for gas chromatography. The 1-butyl-3-[(3-trimethoxysilyl)propyl]imidazolium chloride ionic liquid bonded capillary column was evaluated in detail. The results...

Pressure-induced metallization of molybdenum disulfide.

Physical review letters

Chi ZH, Zhao XM, Zhang H, Goncharov AF, Lobanov SS, Kagayama T, Sakata M, Chen XJ.
PMID: 25083660
Phys Rev Lett. 2014 Jul 18;113(3):036802. doi: 10.1103/PhysRevLett.113.036802. Epub 2014 Jul 16.

X-ray diffraction, Raman spectroscopy, and electrical conductivity measurements of molybdenum disulfide MoS(2) are performed at pressures up to 81 GPa in diamond anvil cells. Above 20 GPa, we find discontinuous changes in Raman spectra and x-ray diffraction patterns which...

Construction and verification of the targeted uPA-shRNA lentiviral vector and evaluation of the transfection and silencing rate.

Experimental and therapeutic medicine

Wang WS, Guo FJ, Li CJ, Zhang ZD, Shi CH.
PMID: 25009597
Exp Ther Med. 2014 Aug;8(2):435-441. doi: 10.3892/etm.2014.1741. Epub 2014 May 28.

Urokinase-type plasminogen activator (uPA) receptors, which are released by the synovial tissue, are responsible for the activation of cartilage-breakdown proteases and play critical roles in cartilage degradation during the progression of osteoarthritis (OA). RNA interference (RNAi) technology has emerged...

Vortex Lattices in the Bose-Fermi Superfluid Mixture.

Physical review letters

Jiang Y, Qi R, Shi ZY, Zhai H.
PMID: 28282164
Phys Rev Lett. 2017 Feb 24;118(8):080403. doi: 10.1103/PhysRevLett.118.080403. Epub 2017 Feb 24.

In this Letter we show that the vortex lattice structure in the Bose-Fermi superfluid mixture can undergo a sequence of structure transitions when the Fermi superfluid is tuned from the BCS regime to the BEC regime. This is due...

Hand-Sewn Versus Stapled Esophagogastric Anastomosis in the Neck: A Systematic Review and Meta-analysis of Randomized Controlled Trials.

The Indian journal of surgery

Wang Q, He XR, Shi CH, Tian JH, Jiang L, He SL, Yang KH.
PMID: 26139968
Indian J Surg. 2015 Apr;77(2):133-40. doi: 10.1007/s12262-013-0984-3. Epub 2013 Oct 09.

The application of cervical esophagogastric anastomoses was of great concern. However, between circular stapler (CS) and hand-sewn (HS) methods with anastomosis in the neck, which one has better postoperative effects still puzzles surgeons. This study aims to systematically evaluate...

Palladium-Catalyzed Direct Annulation of Benzoic Acids with Phenols to Synthesize Dibenzopyranones.

Organic letters

Wang Y, Gu JY, Shi ZJ.
PMID: 28263077
Org Lett. 2017 Mar 17;19(6):1326-1329. doi: 10.1021/acs.orglett.7b00177. Epub 2017 Mar 06.

Direct annulation of benzoic acids with phenols via palladium-catalyzed oxidative coupling is reported. Readily available and inexpensive starting materials were used in this novel method to synthesize highly valuable and useful dibenzopyranone scaffolds. Broad substrate scope and simple operation...

Inhibition of the Aspergillus flavus Growth and Aflatoxin B1 Contamination on Pistachio Nut by Fengycin and Surfactin-Producing Bacillus subtilis UTBSP1.

The plant pathology journal

Farzaneh M, Shi ZQ, Ahmadzadeh M, Hu LB, Ghassempour A.
PMID: 27298596
Plant Pathol J. 2016 Jun;32(3):209-15. doi: 10.5423/PPJ.OA.11.2015.0250. Epub 2016 Jun 01.

In this study, the treatment of pistachio nuts by Bacillus subtilis UTBSP1, a promising isolate to degrade aflatoxin B1 (AFB1), caused to reduce the growth of Aspergillus flavus R5 and AFB1 content on pistachio nuts. Fluorescence probes revealed that...

Understanding the Halogenation Effects in Diketopyrrolopyrrole-Based Small Molecule Photovoltaics.

ACS applied materials & interfaces

Sun SX, Huo Y, Li MM, Hu X, Zhang HJ, Zhang YW, Zhang YD, Chen XL, Shi ZF, Gong X, Chen Y, Zhang HL.
PMID: 26261995
ACS Appl Mater Interfaces. 2015 Sep 16;7(36):19914-22. doi: 10.1021/acsami.5b03488. Epub 2015 Aug 31.

Two molecules containing a central diketopyrrolopyrrole and two oligothiophene units have been designed and synthesized. Comparisons between the molecules containing terminal F (FDPP) and Cl (CDPP) atoms allowed us to evaluate the effects of halogenation on the photovoltaic properties...

Showing 1 to 12 of 1058 entries