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Showing 1 to 12 of 3872 entries
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Organometallic rotaxane dendrimers with fourth-generation mechanically interlocked branches.

Proceedings of the National Academy of Sciences of the United States of America

Wang W, Chen LJ, Wang XQ, Sun B, Li X, Zhang Y, Shi J, Yu Y, Zhang L, Liu M, Yang HB.
PMID: 25902491
Proc Natl Acad Sci U S A. 2015 May 05;112(18):5597-601. doi: 10.1073/pnas.1500489112. Epub 2015 Apr 20.

Mechanically interlocked molecules, such as catenanes, rotaxanes, and knots, have applications in information storage, switching devices, and chemical catalysis. Rotaxanes are dumbbell-shaped molecules that are threaded through a large ring, and the relative motion of the two components along...

Pd-catalyzed allylic alkylation of dienyl carbonates with nitromethane with high C-5 regioselectivity.

Chemical communications (Cambridge, England)

Yang XF, Li XH, Ding CH, Xu CF, Dai LX, Hou XL.
PMID: 24266021
Chem Commun (Camb). 2014 Jan 14;50(4):484-6. doi: 10.1039/c3cc46574h.

A highly regioselective palladium-catalyzed allylic alkylation of dienyl esters with nitromethane has been developed, providing selective access to the C-5 attacked products. The structures of the ligands as well as the steric effect of the substrates are important factors...

Raman gain induced mode evolution and on-demand coupling control in whispering-gallery-mode microcavities.

Optics express

Yang X, Özdemir ŞK, Peng B, Yilmaz H, Lei FC, Long GL, Yang L.
PMID: 26698440
Opt Express. 2015 Nov 16;23(23):29573-83. doi: 10.1364/OE.23.029573.

Waveguide-coupled optical resonators have played an important role in a wide range of applications including optical communication, sensing, nonlinear optics, slow/fast light, and cavity QED. In such a system, the coupling regimes strongly affect the resonance feature in the...

Glioma targeting peptide in combination with the P53 C terminus inhibits glioma cell proliferation in vitro.

Cytotechnology

Wang D, Guo M, Yu J, Wang X, Zhang Q, Yang X, Li J, Zhao C, Feng B.
PMID: 28879517
Cytotechnology. 2018 Feb;70(1):153-161. doi: 10.1007/s10616-017-0122-3. Epub 2017 Sep 06.

Glioma is a prevalent malignant primary brain tumor in adults, the treatment for which remains a challenge due to its high infiltration and recurrence. Hence, treatments that lead to the suppression of glioma cell migration and invasion may be...

Photocatalytic Radical Trifluoromethylation/Cyclization Cascade: Synthesis of CF3-Containing Pyrazolines and Isoxazolines.

Organic letters

Wei Q, Chen JR, Hu XQ, Yang XC, Lu B, Xiao WJ.
PMID: 26332823
Org Lett. 2015 Sep 18;17(18):4464-7. doi: 10.1021/acs.orglett.5b02118. Epub 2015 Sep 02.

A general visible light induced photoredox-catalyzed radical trifluoromethylation/cyclization cascade of β-aryl-β,γ-unsaturated hydrazones and oximes is described. The protocol enables an efficient access to various densely functionalized and biologically important CF3-containing dihydropyrazoles and isoxazolines with generally high yields.

Graphene Coupled with Silicon Quantum Dots for High-Performance Bulk-Silicon-Based Schottky-Junction Photodetectors.

Advanced materials (Deerfield Beach, Fla.)

Yu T, Wang F, Xu Y, Ma L, Pi X, Yang D.
PMID: 27061073
Adv Mater. 2016 Jun;28(24):4912-9. doi: 10.1002/adma.201506140. Epub 2016 Apr 09.

Graphene is coupled with silicon quantum dots (Si QDs) on top of bulk Si to form a hybrid photodetector. Si QDs cause an increase of the built-in potential of the graphene/Si Schottky junction while reducing the optical reflection of...

Precursor chemistry matters in boosting photoredox activity of graphene/semiconductor composites.

Nanoscale

Yang MQ, Han C, Zhang N, Xu YJ.
PMID: 26403302
Nanoscale. 2015 Nov 21;7(43):18062-70. doi: 10.1039/c5nr05143f.

Considerable effort has been made to fabricate graphene (GR)/semiconductor composite photocatalysts, by using graphene oxide (GO) as the most widely used precursor of GR, toward an improved efficacy of solar energy conversion. However, thus far, the role of GO...

A Matrix-Based Proactive Data Relay Algorithm for Large Distributed Sensor Networks.

Sensors (Basel, Switzerland)

Xu Y, Hu X, Hu H, Liu M.
PMID: 27537891
Sensors (Basel). 2016 Aug 16;16(8). doi: 10.3390/s16081300.

In large-scale distributed sensor networks, sensed data is required to be relayed around the network so that one or few sensors can gather adequate relative data to produce high quality information for decision-making. In regards to very high energy-constraint...

Experimental investigation of the information entropic Bell inequality.

Scientific reports

Cao LZ, Zhao JQ, Liu X, Yang Y, Li YD, Wang XQ, Chen ZB, Lu HX.
PMID: 27034104
Sci Rep. 2016 Apr 01;6:23758. doi: 10.1038/srep23758.

Inequalities of information entropic play a fundamental role in information theory and have been employed effectively in finding bounds on optimal rates of various information-processing tasks. In this paper, we perform the first experimental demonstration of the information-theoretic spin-1/2...

Organic Molecules from Biochar Leacheates Have a Positive Effect on Rice Seedling Cold Tolerance.

Frontiers in plant science

Yuan J, Meng J, Liang X, E Y, Yang X, Chen W.
PMID: 28979283
Front Plant Sci. 2017 Sep 20;8:1624. doi: 10.3389/fpls.2017.01624. eCollection 2017.

Biochar is known to have a number of positive effects on plant ecophysiology. However, limited research has been carried out to date on the effects and mechanisms of biochar on plant ecophysiology under abiotic stresses, especially responses to cold....

Solar-Blind Photodetector with High Avalanche Gains and Bias-Tunable Detecting Functionality Based on Metastable Phase α-Ga.

ACS applied materials & interfaces

Chen X, Xu Y, Zhou D, Yang S, Ren FF, Lu H, Tang K, Gu S, Zhang R, Zheng Y, Ye J.
PMID: 28975779
ACS Appl Mater Interfaces. 2017 Oct 25;9(42):36997-37005. doi: 10.1021/acsami.7b09812. Epub 2017 Oct 11.

The metastable α-phase Ga

Power Flow in a Large-Core Multimode Fiber under External Perturbation and its Applications.

Scientific reports

Qian S, Xu Y, Zhong L, Su L.
PMID: 28424487
Sci Rep. 2017 Apr 19;7(1):952. doi: 10.1038/s41598-017-01117-4.

Large core optical multimode fiber provides benefits such as a large light-coupling tolerance, easy handling, and delivery of higher light power without undesirable nonlinear effects. In this research, we exploit the effects of external perturbation on the power flow...

Showing 1 to 12 of 3872 entries