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Showing 1 to 12 of 217 entries
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Blind column selection protocol for two-dimensional high performance liquid chromatography.

Talanta

Burns NK, Andrighetto LM, Conlan XA, Purcell SD, Barnett NW, Denning J, Francis PS, Stevenson PG.
PMID: 27154652
Talanta. 2016 Jul 01;154:85-91. doi: 10.1016/j.talanta.2016.03.056. Epub 2016 Mar 18.

The selection of two orthogonal columns for two-dimensional high performance liquid chromatography (LC×LC) separation of natural product extracts can be a labour intensive and time consuming process and in many cases is an entirely trial-and-error approach. This paper introduces...

Microbial sulfur transformations in sediments from Subglacial Lake Whillans.

Frontiers in microbiology

Purcell AM, Mikucki JA, Achberger AM, Alekhina IA, Barbante C, Christner BC, Ghosh D, Michaud AB, Mitchell AC, Priscu JC, Scherer R, Skidmore ML, Vick-Majors TJ, The Wissard Science Team.
PMID: 25477865
Front Microbiol. 2014 Nov 19;5:594. doi: 10.3389/fmicb.2014.00594. eCollection 2014.

Diverse microbial assemblages inhabit subglacial aquatic environments. While few of these environments have been sampled, data reveal that subglacial organisms gain energy for growth from reduced minerals containing nitrogen, iron, and sulfur. Here we investigate the role of microbially...

Changes in smooth muscle contractility of rainbow trout (Oncorhynchus mykiss Walbaum) intestine during acclimation to altered temperature.

Fish physiology and biochemistry

Burka JF, Briand HA, Purcell LM, Mitton GA, Hogan JG, Ireland WP.
PMID: 24202876
Fish Physiol Biochem. 1993 Dec;12(4):347-55. doi: 10.1007/BF00004419.

The effects of altered water temperature in vivo on in vitro smooth muscle contractility of rainbow trout intestine were investigated. Temperature has a significant effect on receptor-mediated intestinal smooth muscle contractility in the rainbow trout. The efficacy of 5-HT,...

Inflammatory vitiligo versus hypopigmented mycosis fungoides in a 58-year-old Indian female.

Indian dermatology online journal

Soro LA, Gust AJ, Purcell SM.
PMID: 24350017
Indian Dermatol Online J. 2013 Oct;4(4):321-5. doi: 10.4103/2229-5178.120662.

Vitiligo, particularly the rarer inflammatory variant, may be difficult to distinguish from hypopigmented mycosis fungoides (MF) clinically. Complicating the distinction is that when biopsies are taken from the periphery of early vitiliginous lesions or from lesions with an inflammatory...

Incorporation of Sulfated Hyaluronic Acid Macromers into Degradable Hydrogel Scaffolds for Sustained Molecule Delivery.

Biomaterials science

Purcell BP, Kim IL, Chuo V, Guinen T, Dorsey SM, Burdick JA.
PMID: 24955239
Biomater Sci. 2014;2:693-702. doi: 10.1039/C3BM60227C.

Synthetically sulfated hyaluronic acid (HA) has been shown to bind proteins with high affinity through electrostatic interactions. While HA-based hydrogels have been used widely in recent years for drug delivery and tissue engineering applications, incorporation of sulfated HA into...

Hot nanotubes: stable heating of individual multiwall carbon nanotubes to 2000 k induced by the field-emission current.

Physical review letters

Purcell ST, Vincent P, Journet C, Binh VT.
PMID: 11909368
Phys Rev Lett. 2002 Mar 11;88(10):105502. doi: 10.1103/PhysRevLett.88.105502. Epub 2002 Feb 20.

Field emission (FE) electron spectroscopy from an individual multiwalled carbon nanotube (MWNT) is used to measure quantitatively stable temperatures at the apex, T(A), of up to 2000 K induced by FE currents approximately 1 microA. The high T(A) is...

Selective synthesis of the C3v isomer of C60h18.

Organic letters

Wågberg T, Johnels D, Peera A, Hedenström M, Schulga YM, Tsybin YO, Purcell JM, Marshall AG, Noreus D, Sato T, Talyzin AV.
PMID: 16320990
Org Lett. 2005 Dec 08;7(25):5557-60. doi: 10.1021/ol052175p.

[chemical structure: see text]. C60H18 has been produced by hydrogenation of C60 at 100 bar H2 pressure and 673 K for 10 h. We have investigated the crude material without any purification by use of 1H NMR, 13C NMR,...

Reaction of hydrogen gas with C60 at elevated pressure and temperature: hydrogenation and cage fragmentation.

The journal of physical chemistry. A

Talyzin AV, Tsybin YO, Purcell JM, Schaub TM, Shulga YM, Noréus D, Sato T, Dzwilewski A, Sundqvist B, Marshall AG.
PMID: 16821837
J Phys Chem A. 2006 Jul 13;110(27):8528-34. doi: 10.1021/jp0557971.

Products of the reaction of C(60) with H(2) gas have been monitored by high-resolution atmospheric pressure photoionization Fourier transform ion cyclotron resonance mass spectrometry (APPI FT-ICR MS), X-ray diffraction, and IR spectroscopy as a function of hydrogenation period. Samples...

Poliomyelitis in Charlottesville, Virginia, and the Adjacent County of Albemarle.

American journal of public health and the nation's health

Waddell WW, Purcell CW.
PMID: 18014362
Am J Public Health Nations Health. 1936 Feb;26(2):104-12. doi: 10.2105/ajph.26.2.104.

No abstract available.

Atmospheric pressure photoionization proton transfer for complex organic mixtures investigated by fourier transform ion cyclotron resonance mass spectrometry.

Journal of the American Society for Mass Spectrometry

Purcell JM, Hendrickson CL, Rodgers RP, Marshall AG.
PMID: 17689097
J Am Soc Mass Spectrom. 2007 Sep;18(9):1682-9. doi: 10.1016/j.jasms.2007.07.001. Epub 2007 Aug 03.

To further clarify the role of dopant solvent in proton transfer in atmospheric pressure photoionization (APPI), we employ ultrahigh-resolution FT-ICR mass analysis to identify M(+*), [M + H](+), [M - H](-), and [M + D](+) species in toluene or...

The Promises and Pitfalls of Genoeconomics*.

Annual review of economics

Benjamin DJ, Cesarini D, Chabris CF, Glaeser EL, Laibson DI, Guðnason V, Harris TB, Launer LJ, Purcell S, Smith AV, Johannesson M, Magnusson PK, Beauchamp JP, Christakis NA, Atwood CS, Hebert B, Freese J, Hauser RM, Hauser TS, Grankvist A, Hultman CM, Lichtenstein P.
PMID: 23482589
Annu Rev Econom. 2012 Jul 01;4:627-662. doi: 10.1146/annurev-economics-080511-110939. Epub 2012 Jun 18.

This article reviews existing research at the intersection of genetics and economics, presents some new findings that illustrate the state of genoeconomics research, and surveys the prospects of this emerging field. Twin studies suggest that economic outcomes and preferences,...

Ultrashort single-wall carbon nanotubes reveal field-emission coulomb blockade and highest electron-source brightness.

Physical review letters

Pascale-Hamri A, Perisanu S, Derouet A, Journet C, Vincent P, Ayari A, Purcell ST.
PMID: 24724670
Phys Rev Lett. 2014 Mar 28;112(12):126805. doi: 10.1103/PhysRevLett.112.126805. Epub 2014 Mar 26.

We present here well-defined Coulomb staircases using an original field-emission experiment on several individual in situ-grown single-wall carbon nanotubes. A unique in situ process was applied nine times to progressively shorten one single-wall carbon nanotube down to ≃10  nm,...

Showing 1 to 12 of 217 entries