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Showing 1 to 12 of 380 entries
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A Stable Extra-Large-Pore Zeolite with Intersecting 14- and 10-Membered-Ring Channels.

Chemistry (Weinheim an der Bergstrasse, Germany)

Gao ZH, Chen FJ, Xu L, Sun L, Xu Y, Du HB.
PMID: 27533626
Chemistry. 2016 Sep 26;22(40):14367-72. doi: 10.1002/chem.201602419. Epub 2016 Aug 17.

The development of inorganic frameworks with extra-large pores (larger than 12-membered rings) has attracted considerable attention because of their potential applications in catalysis, the separation of large molecules, and so forth. We herein report the synthesis of the new...

Enantio- and Diastereoselective Formal Hetero-Diels-Alder Reactions of Trifluoromethylated Enones Catalyzed by Chiral Primary Amines.

Chemistry (Weinheim an der Bergstrasse, Germany)

Lin YJ, Du LN, Kang TR, Liu QZ, Chen ZQ, He L.
PMID: 26179273
Chemistry. 2015 Aug 10;21(33):11773-8. doi: 10.1002/chem.201501897. Epub 2015 Jul 14.

Enantioselective formal hetero-Diels-Alder reactions of trifluoromethylated enones and 2-amino-1,3-butadienes generated in situ from aliphatic acyclic enones and chiral primary amines are reported. The corresponding tetrahydropyran-4-ones are formed in up to 94 % yield and with up to 94 %...

Tuning the properties of the metal-organic framework UiO-67-bpy via post-synthetic N-quaternization of pyridine sites.

Dalton transactions (Cambridge, England : 2003)

Xu L, Luo Y, Sun L, Pu S, Fang M, Yuan RX, Du HB.
PMID: 27140178
Dalton Trans. 2016 May 28;45(20):8614-21. doi: 10.1039/c6dt00992a. Epub 2016 May 03.

A new UiO-67-type zirconium metal organic framework (MOF) material UiO-67-bpy-Me (bpy = 2,2-bipyridine-4,4'-dicarboxylic acid, Me = methyl) was prepared by N-quaternization of the pyridine sites in UiO-67-bpy. After N-quaternization, the pristine neutral framework turned cationic while its high thermal...

Size-dependent Raman shift of semiconductor nanomaterials determined using bond number and strength.

Physical chemistry chemical physics : PCCP

Li H, He XW, Xiao HJ, Du HN, Wang J, Zhang HX.
PMID: 28994837
Phys Chem Chem Phys. 2017 Oct 25;19(41):28056-28062. doi: 10.1039/c7cp05495e.

Significant variations in Raman shifts with decreasing material size, D, have been detected in Raman spectroscopy. In this study, we propose a simple and unified model to determine and explain the size-dependent Raman shift, ω(D), of low-dimensional semiconductor nanomaterials....

Prohibitin as a novel autoantigen in rheumatoid arthritis.

Central-European journal of immunology

Shi LL, Chen P, Xun YP, Yang WK, Yang CH, Chen GY, Du HW.
PMID: 26155187
Cent Eur J Immunol. 2015;40(1):78-82. doi: 10.5114/ceji.2015.50837. Epub 2015 Apr 22.

THE AIM OF THIS STUDY: The aim of this study was to verify whether prohibitin is a novel autoantigen in rheumatoid arthritis.MATERIAL AND METHODS: First, recombinant human prohibitin (rhPHB) protein was cloned, expressed, and purified. Then the anti-prohibitin autoantibodies...

Improvement of the uniformity and dipole ferromagnetism in Co nanodots assemblies on Pb/Si(111) via step tuned dimensionality variation.

Nanotechnology

Fang YP, He W, Du HF, Liu HL, Wu Q, Zhang XQ, Yang HT, Cheng ZH, Shen J.
PMID: 20972310
Nanotechnology. 2010 Nov 19;21(46):465703. doi: 10.1088/0957-4484/21/46/465703. Epub 2010 Oct 25.

We fabricated quasi-one-dimensional Co nanochain assemblies and two-dimensional Co nanodot assemblies on Pb/Si(111) substrates by step decoration. The morphology and magnetic properties of these two kinds of Co nanodot assemblies were investigated by in situ scanning tunneling microscopy and...

6-(4-Methyl-phen-yl)-3-(3,4,5-trimethoxy-phen-yl)-1,2,4-triazolo[3,4-b][1,3,4]thiadiazole.

Acta crystallographica. Section E, Structure reports online

Du HT, Du HJ, Zhou W.
PMID: 21201232
Acta Crystallogr Sect E Struct Rep Online. 2008 Sep 30;64:o2040. doi: 10.1107/S1600536808030936.

In the mol-ecule of the title compound, C(19)H(18)N(4)O(3)S, the central heterocylic ring system is oriented with respect to the trimethoxy-phenyl and 4-methyl-phenyl rings at dihedral angles of 1.1 (5) and 15.1 (5)°, respectively. The dihedral angle between the two...

Signet ring cell carcinoma arising from a solitary juvenile polyp in the colon.

Journal of the Korean Society of Coloproctology

Kim HJ, Kang MK, Lee HS, Kim DS, Lee DH.
PMID: 21152141
J Korean Soc Coloproctol. 2010 Oct;26(5):365-7. doi: 10.3393/jksc.2010.26.5.365. Epub 2010 Oct 31.

Juvenile polyps are relatively common polyps that affect predominantly young patients and may occur in isolated, multiple, and/or familial forms. They have been considered to be benign lesions without neoplastic potential, but for patients with multiple juvenile polyposis, the...

Comparative theoretical studies of energetic azo s-triazines.

The journal of physical chemistry. A

Wang F, Du HC, Zhang JY, Gong XD.
PMID: 21910431
J Phys Chem A. 2011 Oct 27;115(42):11852-60. doi: 10.1021/jp206756r. Epub 2011 Sep 29.

In this work, the properties of the synthesized high-nitrogen compounds 4,4',6,6'-tetra(azido)azo-1,3,5-triazine (TAAT) and 4,4',6,6'-tetra(azido)hydrazo-1,3,5-triazine (TAHT), and a set of designed bridged triazines with similar bridges were studied theoretically to facilitate further developments for the molecules of interests. The gas-phase...

Intraperitoneum insufflation of carbon dioxide increases epidural pressure in laparoscopic cholecystectomy.

Journal of anesthesia

Du HL, Hayashita M, Hanaoka K.
PMID: 23839888
J Anesth. 1995 Dec;9(4):357-9. doi: 10.1007/BF02479953.

No abstract available.

Thickness measurement of insulation coating by NIR spectrometry based on boosting-KPLS.

Guang pu xue yu guang pu fen xi = Guang pu

Hao HM, Li SW, Zhang WD, Li PW, Hao JY, Lu HN, Ken J, Zhang Y.
PMID: 22007389
Guang Pu Xue Yu Guang Pu Fen Xi. 2011 Aug;31(8):2081-5.

A novel thickness measurement method for surface insulation coating of silicon steel based on NIR spectrometry is explored. The NIR spectra of insulation coating of silicon steel were collected by acousto-optic tunable filter (AOTF) NIR spectrometer. To make full...

[Visible-light responding BiVO4/TiO2 nanocomposite photocatalyst].

Guang pu xue yu guang pu fen xi = Guang pu

Ji TH, Yang F, Zhou JY, Du HY, Sun JY.
PMID: 20828005
Guang Pu Xue Yu Guang Pu Fen Xi. 2010 Jul;30(7):1944-7.

The two kinds of new nanocomposites BiVO4/TiO2 nanowires were synthesized by hydrothermal process. Their crystal structure, morphology and photocatalytic activities for degradation of methylene blue solution were characterized using various measurement techniques. The XRD results indicate that they are...

Showing 1 to 12 of 380 entries