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Showing 1 to 12 of 823 entries
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A microporous lanthanide-tricarboxylate framework with the potential for purification of natural gas.

Chemical communications (Cambridge, England)

He Y, Xiang S, Zhang Z, Xiong S, Fronczek FR, Krishna R, O'Keeffe M, Chen B.
PMID: 23023243
Chem Commun (Camb). 2012 Nov 14;48(88):10856-8. doi: 10.1039/c2cc35729a. Epub 2012 Oct 01.

A novel robust three-dimensional lanthanide organic framework with high thermal stability has been demonstrated to exhibit the potential for purification of natural gas in nearly pure form from an 8-component gas mixture at room temperature.

Two-photon photovoltaic effect in gallium arsenide.

Optics letters

Ma J, Chiles J, Sharma YD, Krishna S, Fathpour S.
PMID: 26466255
Opt Lett. 2014 Sep 15;39(18):5297-300. doi: 10.1364/OL.39.005297.

The two-photon photovoltaic effect is demonstrated in gallium arsenide at 976 and 1550 nm wavelengths. A waveguide-photodiode biased in its fourth quadrant harvests electrical power from the optical energy lost to two-photon absorption. The experimental results are in good...

Unusual systemic venous Collateral channels to left atrium causing desaturation after Fontan operation closed percutaneously.

Annals of pediatric cardiology

Marwah A, Khatri S, Shrivastava S, Iyer KS.
PMID: 24688245
Ann Pediatr Cardiol. 2013 Jul;6(2):191-3. doi: 10.4103/0974-2069.115284.

We present an unusual cause of progressive cyanosis in a child appearing 2 years after successful Fontan surgery for tetralogy of Fallot with hypoplastic right ventricle. The cause of cyanosis was identified as one large venous channel draining into...

Extraordinary Separation of Acetylene-Containing Mixtures with Microporous Metal-Organic Frameworks with Open O Donor Sites and Tunable Robustness through Control of the Helical Chain Secondary Building Units.

Chemistry (Weinheim an der Bergstrasse, Germany)

Yao Z, Zhang Z, Liu L, Li Z, Zhou W, Zhao Y, Han Y, Chen B, Krishna R, Xiang S.
PMID: 26934040
Chemistry. 2016 Apr 11;22(16):5676-83. doi: 10.1002/chem.201505107. Epub 2016 Mar 02.

Acetylene separation is a very important but challenging industrial separation task. Here, through the solvothermal reaction of CuI and 5-triazole isophthalic acid in different solvents, two metal-organic frameworks (MOFs, FJU-21 and FJU-22) with open O donor sites and controllable...

Flexible-Robust Metal-Organic Framework for Efficient Removal of Propyne from Propylene.

Journal of the American Chemical Society

Li L, Lin RB, Krishna R, Wang X, Li B, Wu H, Li J, Zhou W, Chen B.
PMID: 28580788
J Am Chem Soc. 2017 Jun 14;139(23):7733-7736. doi: 10.1021/jacs.7b04268. Epub 2017 Jun 05.

The removal of trace amounts of propyne from propylene is critical for the production of polymer-grade propylene. We herein report the first example of metal-organic frameworks of flexible-robust nature for the efficient separation of propyne/propylene mixtures. The strong binding...

Rare case of transverse testicular ectopia - Case report and review of literature.

International journal of surgery case reports

Raj V, Redkar R, Krishna S, Tewari S.
PMID: 29546003
Int J Surg Case Rep. 2017 Nov 07;41:407-410. doi: 10.1016/j.ijscr.2017.09.032. eCollection 2017.

This case report has been reported in line with the SCARE criteria; Consensus-based surgical case report guidelines of International Journal of Surgery 2016.INTRODUCTION: Transverse Testicular Ectopia (TTE) is a rare condition which manifests with unilateral undescended testis and contralateral...

Adsorptive Separation of Acetylene from Light Hydrocarbons by Mesoporous Iron Trimesate MIL-100(Fe).

Chemistry (Weinheim an der Bergstrasse, Germany)

Yoon JW, Lee JS, Lee S, Cho KH, Hwang YK, Daturi M, Jun CH, Krishna R, Chang JS.
PMID: 26515022
Chemistry. 2015 Dec 07;21(50):18431-8. doi: 10.1002/chem.201502893. Epub 2015 Oct 30.

A reducible metal-organic framework (MOF), iron(III) trimesate, denoted as MIL-100(Fe), was investigated for the separation and purification of methane/ethane/ethylene/acetylene and an acetylene/CO2 mixtures by using sorption isotherms, breakthrough experiments, ideal adsorbed solution theory (IAST) calculations, and IR spectroscopic analysis....

Highly selective water adsorption in a lanthanum metal-organic framework.

Chemistry (Weinheim an der Bergstrasse, Germany)

Plessius R, Kromhout R, Ramos AL, Ferbinteanu M, Mittelmeijer-Hazeleger MC, Krishna R, Rothenberg G, Tanase S.
PMID: 24867871
Chemistry. 2014 Jun 23;20(26):7922-5. doi: 10.1002/chem.201403241. Epub 2014 May 27.

We present a new metal-organic framework (MOF) built from lanthanum and pyrazine-2,5-dicarboxylate (pyzdc) ions. This MOF, [La(pyzdc)1.5(H2O)2]⋅2 H2O, is microporous, with 1D channels that easily accommodate water molecules. Its framework is highly robust to dehydration/hydration cycles. Unusually for a...

High acetylene/ethylene separation in a microporous zinc(II) metal-organic framework with low binding energy.

Chemical communications (Cambridge, England)

Wen HM, Li B, Wang H, Krishna R, Chen B.
PMID: 26597048
Chem Commun (Camb). 2016 Jan 21;52(6):1166-9. doi: 10.1039/c5cc08210b.

A novel zinc(II) metal-organic framework UTSA-67a with narrow one-dimensional (1D) pore channels and inner cages of moderate size has been developed for highly selective separation of C2H2/C2H4 mixtures at room temperature.

Oncogene-induced NAD(+) depletion in tumorigenesis.

Oncoscience

Tummala KS, Djouder N.
PMID: 26097866
Oncoscience. 2015 Apr 19;2(4):318-9. doi: 10.18632/oncoscience.154. eCollection 2015.

No abstract available.

Restriction modification systems as engines of diversity.

Frontiers in microbiology

Sneppen K, Semsey S, Seshasayee AS, Krishna S.
PMID: 26082758
Front Microbiol. 2015 Jun 02;6:528. doi: 10.3389/fmicb.2015.00528. eCollection 2015.

Restriction modification (RM) systems provide protection against a broad spectrum of phages. However, the likelihood of a phage permanently bypassing this can be as high as 0.1 per infection (Korona et al., 1993) which makes for a relatively weak...

Treatment of femoral neck fractures: unipolar versus bipolar hemiarthroplasty.

Malaysian orthopaedic journal

Somashekar, Krishna SV, Sridhara Murthy J.
PMID: 25722818
Malays Orthop J. 2013 Jul;7(2):6-11. doi: 10.5704/MOJ.1307.007.

BACKGROUND AND OBJECTIVE: Intracapsular femoral neck fractures are common in the elderly population. To avoid the poor outcome of internal fixation and for early mobilization, hemiarthroplasty is performed. However, there is inadequate evidence to support the choice between unipolar...

Showing 1 to 12 of 823 entries