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Showing 1 to 12 of 3545 entries
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Wedge and gap plasmonic resonances in double nanoholes.

Optics express

Chen Y, Kotnala A, Yu L, Zhang J, Gordon R.
PMID: 26698503
Opt Express. 2015 Nov 16;23(23):30227-36. doi: 10.1364/OE.23.030227.

We study the plasmonic resonances of double nanoholes (DNHs) in metal films. These apertures exhibit the usual gap-mode Fabry-Pérot resonances, where the zeroth order resonance is determined by the waveguide cut-off and the first order resonance shows sensitivity to...

Bio-inspired Murray materials for mass transfer and activity.

Nature communications

Zheng X, Shen G, Wang C, Li Y, Dunphy D, Hasan T, Brinker CJ, Su BL.
PMID: 28382972
Nat Commun. 2017 Apr 06;8:14921. doi: 10.1038/ncomms14921.

Both plants and animals possess analogous tissues containing hierarchical networks of pores, with pore size ratios that have evolved to maximize mass transport and rates of reactions. The underlying physical principles of this optimized hierarchical design are embodied in...

Palatal fistula risk after primary palatoplasty: a retrospective comparison of humanitarian operations and tertiary hospitals.

Lancet (London, England)

Daniels KM, Yu EY, Maine RG, Corlew S, Bing S, Hoffman WY, Gregory GA.
PMID: 26313085
Lancet. 2015 Apr 27;385:S37. doi: 10.1016/S0140-6736(15)60832-7. Epub 2015 Apr 26.

BACKGROUND: Humanitarian surgical organisations provide cleft palate repair for patients without access to surgical care. Despite decades of experience, very little research has assessed the outcomes of these trips. This study investigates the fistula rate in patients from two...

Reversible Photoresponsive Molecular Alignment of Liquid Crystals at Fluid Interfaces with Persistent Stability.

Chemistry (Weinheim an der Bergstrasse, Germany)

Tian T, Hu Q, Wang Y, Gao Y, Yu L.
PMID: 27004449
Chemistry. 2016 Apr 25;22(18):6340-4. doi: 10.1002/chem.201600095. Epub 2016 Mar 23.

This work demonstrates a noninvasive approach to control alignment of liquid crystals persistently and reversibly at fluid interfaces by using a photoresponsive azobenzene-based surfactant dissolved in an ionic liquid (IL), ethylammonium nitrate (EAN). As the first report on the...

Self-assembled air-stable magnesium hydride embedded in 3-D activated carbon for reversible hydrogen storage.

Nanoscale

Shinde SS, Kim DH, Yu JY, Lee JH.
PMID: 28513727
Nanoscale. 2017 Jun 01;9(21):7094-7103. doi: 10.1039/c7nr01699a.

The rational design of stable, inexpensive catalysts with excellent hydrogen dynamics and sorption characteristics under realistic environments for reversible hydrogen storage remains a great challenge. Here, we present a simple and scalable strategy to fabricate a monodispersed, air-stable, magnesium...

Robotic-assisted laparoscopic radical prostatectomy after aborted retropubic radical prostatectomy.

Journal of robotic surgery

Kowalczyk KJ, Huang AC, Williams SB, Yu HY, Hu JC.
PMID: 27000927
J Robot Surg. 2013 Sep;7(3):301-4. doi: 10.1007/s11701-012-0377-9. Epub 2012 Aug 19.

Robotic-assisted laparoscopic prostatectomy (RALP) has surged in popularity since US Food and Drug Administration approval in 2000. Advantages include improved visualization and increased instrument dexterity within the pelvis. Obesity and narrow pelves have been associated with increased difficulty during...

Multisensor-Based Periodic Estimation in Sensor Networks With Transmission Constraint and Periodic Mixed Storage.

IEEE transactions on cybernetics

Song H, Zhang WA, Yu L, Chen B.
PMID: 27705872
IEEE Trans Cybern. 2017 Dec;47(12):4367-4379. doi: 10.1109/TCYB.2016.2609503. Epub 2016 Sep 29.

In this paper, we consider a periodic estimation problem in sensor networks with a shared communication channel. The transmission constraint is inevitable in a single-channel-based sensor network if the sensors are heterogeneous or deployed far away from each other....

Cinchona Alkaloid Catalyzed Enantioselective [4 + 2] Annulation of Allenic Esters and in Situ Generated ortho-Quinone Methides: Asymmetric Synthesis of Functionalized Chromans.

The Journal of organic chemistry

Deng YH, Chu WD, Zhang XZ, Yan X, Yu KY, Yang LL, Huang H, Fan CA.
PMID: 28421762
J Org Chem. 2017 May 19;82(10):5433-5440. doi: 10.1021/acs.joc.7b00370. Epub 2017 May 01.

A novel enantioselective [4 + 2] annulation of the allenoates having a unique positive ortho-effect with in situ generated ortho-quinone methides has been developed under the catalysis of Cinchona alkaloid. This chiral amine-catalyzed reaction provides an alternative route to...

Direct Palladium-Catalyzed Carbonylative Transformation of Allylic Alcohols and Related Derivatives.

Organic letters

Wu FP, Peng JB, Fu LY, Qi X, Wu XF.
PMID: 28921991
Org Lett. 2017 Oct 06;19(19):5474-5477. doi: 10.1021/acs.orglett.7b02801. Epub 2017 Sep 18.

A direct, palladium-catalyzed, carbonylative transformation of allylic alcohols for the synthesis of β,γ-unsaturated carboxylic acids has been developed. With formic acid as the CO source, various allylic alcohols were conveniently transformed into the corresponding β,γ-unsaturated carboxylic acids with excellent...

Preparation for CeO2/Nanographite Composite Materials and Electrochemical Degradation of Phenol by CeO2/Nanographite Cathodes.

Journal of nanoscience and nanotechnology

Yu L, Yu X, Sun T, Wang N.
PMID: 26373057
J Nanosci Nanotechnol. 2015 Jul;15(7):4920-5. doi: 10.1166/jnn.2015.9835.

CeO2/nanographite (CeO2/nano-G) composite materials were got by chemical precipitation method with nanographite (nano-G) and cerous nitrate hexahydrate as raw materials. The microstructures of CeO2/nano-G composite materials were characterized by means of SEM, XRD, XPS and Raman. The cathodes were...

Synthesis and Structure-Activity Relationship Study of 5a-Carbasugar Analogues of SL0101.

ACS medicinal chemistry letters

Li M, Li Y, Mrozowski RM, Sandusky ZM, Shan M, Song X, Wu B, Zhang Q, Lannigan DA, O'Doherty GA.
PMID: 25589938
ACS Med Chem Lett. 2014 Nov 26;6(1):95-9. doi: 10.1021/ml5004525. eCollection 2015 Jan 08.

The Ser/Thr protein kinase, RSK, is associated with oncogenesis, and therefore, there are ongoing efforts to develop RSK inhibitors that are suitable for use in vivo. SL0101 is a natural product that demonstrates selectivity for RSK inhibition. However, SL0101...

β-lapachone-Induced Apoptosis of Human Gastric Carcinoma AGS Cells Is Caspase-Dependent and Regulated by the PI3K/Akt Pathway.

Biomolecules & therapeutics

Yu HY, Kim SO, Jin CY, Kim GY, Kim WJ, Yoo YH, Choi YH.
PMID: 25009698
Biomol Ther (Seoul). 2014 May;22(3):184-92. doi: 10.4062/biomolther.2014.026.

β-lapachone is a naturally occurring quinone that selectively induces apoptotic cell death in a variety of human cancer cells in vitro and in vivo; however, its mechanism of action needs to be further elaborated. In this study, we investigated...

Showing 1 to 12 of 3545 entries