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Showing 1 to 12 of 164 entries
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Nanoscale Electrochemistry of sp(2) Carbon Materials: From Graphite and Graphene to Carbon Nanotubes.

Accounts of chemical research

Unwin PR, Güell AG, Zhang G.
PMID: 27501067
Acc Chem Res. 2016 Sep 20;49(9):2041-8. doi: 10.1021/acs.accounts.6b00301. Epub 2016 Aug 08.

Carbon materials have a long history of use as electrodes in electrochemistry, from (bio)electroanalysis to applications in energy technologies, such as batteries and fuel cells. With the advent of new forms of nanocarbon, particularly, carbon nanotubes and graphene, carbon...

Direct Measurement of the Tunable Electronic Structure of Bilayer MoS2 by Interlayer Twist.

Nano letters

Yeh PC, Jin W, Zaki N, Kunstmann J, Chenet D, Arefe G, Sadowski JT, Dadap JI, Sutter P, Hone J, Osgood RM.
PMID: 26760447
Nano Lett. 2016 Feb 10;16(2):953-9. doi: 10.1021/acs.nanolett.5b03883. Epub 2016 Jan 20.

Using angle-resolved photoemission on micrometer-scale sample areas, we directly measure the interlayer twist angle-dependent electronic band structure of bilayer molybdenum-disulfide (MoS2). Our measurements, performed on arbitrarily stacked bilayer MoS2 flakes prepared by chemical vapor deposition, provide direct evidence for...

Valley splitting and polarization by the Zeeman effect in monolayer MoSe2.

Physical review letters

Li Y, Ludwig J, Low T, Chernikov A, Cui X, Arefe G, Kim YD, van der Zande AM, Rigosi A, Hill HM, Kim SH, Hone J, Li Z, Smirnov D, Heinz TF.
PMID: 25615372
Phys Rev Lett. 2014 Dec 31;113(26):266804. doi: 10.1103/PhysRevLett.113.266804. Epub 2014 Dec 23.

We have measured circularly polarized photoluminescence in monolayer MoSe2 under perpendicular magnetic fields up to 10 T. At low doping densities, the neutral and charged excitons shift linearly with field strength at a rate of ∓0.12  meV/T for emission...

Electrochemistry at highly oriented pyrolytic graphite (HOPG): lower limit for the kinetics of outer-sphere redox processes and general implications for electron transfer models.

Physical chemistry chemical physics : PCCP

Zhang G, Cuharuc AS, Güell AG, Unwin PR.
PMID: 25869656
Phys Chem Chem Phys. 2015 May 07;17(17):11827-38. doi: 10.1039/c5cp00383k.

The electron transfer (ET) kinetics of three redox couples in aqueous solution, IrCl6(2-/3-), Ru(NH3)6(3+/2+) and Fe(CN)6(4-/3-), on different grades of highly oriented pyrolytic graphite (HOPG) have been investigated in a droplet-cell setup. This simple configuration allows measurements to be...

Confined H2O molecules as local probes of pressure-induced amorphisation in faujasite.

Physical chemistry chemical physics : PCCP

Catafesta J, Alabarse F, Levelut C, Isambert A, Hébert P, Kohara S, Maurin D, Bantignies JL, Cambon O, Creff G, Roy P, Brubach JB, Hammouda T, Andrault D, Haines J.
PMID: 24816994
Phys Chem Chem Phys. 2014 Jun 28;16(24):12202-8. doi: 10.1039/c4cp00186a.

Confined H2O molecules act as local probes for depressurization phenomena during the pressure induced amorphisation of faujasite NaX at which the OH stretching frequency first decreases and then increases almost to its room pressure value upon further compression. Pair...

Cyclophosphamide Induces an Early Wave of Acrolein-Independent Apoptosis in the Urothelium.

Advances in bioscience and biotechnology (Print)

Hughes FM, Corn AG, Nimmich AR, Pratt-Thomas JD, Purves JT.
PMID: 24353901
Adv Biosci Biotechnol. 2013 Aug;4(88). doi: 10.4236/abb.2013.48A2002.

PURPOSE: Hemorrhagic cystitis (HC or bladder inflammation) affects a significant number of patients undergoing cyclophosphamide (CP) chemotherapy despite treatment with 2-mercaptoMATERIALS AND METHODS: Apoptosis in urothelium (caspase-3/7 activity and Poly (ADP-ribosyl) polymerase (PARP) cleavage) was measured following CP administration...

Versatile Polymer-Free Graphene Transfer Method and Applications.

ACS applied materials & interfaces

Zhang G, Güell AG, Kirkman PM, Lazenby RA, Miller TS, Unwin PR.
PMID: 26953499
ACS Appl Mater Interfaces. 2016 Mar;8(12):8008-16. doi: 10.1021/acsami.6b00681. Epub 2016 Mar 18.

A new method for transferring chemical vapor deposition (CVD)-grown monolayer graphene to a variety of substrates is described. The method makes use of an organic/aqueous biphasic configuration, avoiding the use of any polymeric materials that can cause severe contamination...

Multi-terminal transport measurements of MoS2 using a van der Waals heterostructure device platform.

Nature nanotechnology

Cui X, Lee GH, Kim YD, Arefe G, Huang PY, Lee CH, Chenet DA, Zhang X, Wang L, Ye F, Pizzocchero F, Jessen BS, Watanabe K, Taniguchi T, Muller DA, Low T, Kim P, Hone J.
PMID: 25915194
Nat Nanotechnol. 2015 Jun;10(6):534-40. doi: 10.1038/nnano.2015.70. Epub 2015 Apr 27.

Atomically thin two-dimensional semiconductors such as MoS2 hold great promise for electrical, optical and mechanical devices and display novel physical phenomena. However, the electron mobility of mono- and few-layer MoS2 has so far been substantially below theoretically predicted limits,...

Laser photogrammetry improves size and demographic estimates for whale sharks.

PeerJ

Rohner CA, Richardson AJ, Prebble CE, Marshall AD, Bennett MB, Weeks SJ, Cliff G, Wintner SP, Pierce SJ.
PMID: 25870776
PeerJ. 2015 Apr 07;3:e886. doi: 10.7717/peerj.886. eCollection 2015.

Whale sharks Rhincodon typus are globally threatened, but a lack of biological and demographic information hampers an accurate assessment of their vulnerability to further decline or capacity to recover. We used laser photogrammetry at two aggregation sites to obtain...

Assessing interaction between medical trainees and parents of pediatric patients.

Journal of medical education

Malpiede DM, Leff MG, Wilson KM, Moore VM.
PMID: 7108926
J Med Educ. 1982 Sep;57(9):696-700. doi: 10.1097/00001888-198209000-00006.

The interaction between the health care provider and the parent is recognized as vitally important in the delivery of high quality pediatric care. Attributes of the provider such as empathy, concern for the patient, understanding, and the amount of...

THz magnetoelectric atomic rotations in the chiral compound Ba3NbFe3Si2O14.

Physical review letters

Chaix L, de Brion S, Lévy-Bertrand F, Simonet V, Ballou R, Canals B, Lejay P, Brubach JB, Creff G, Willaert F, Roy P, Cano A.
PMID: 25167309
Phys Rev Lett. 2013 Apr 12;110(15):157208. doi: 10.1103/PhysRevLett.110.157208. Epub 2013 Apr 12.

We have determined the terahertz spectrum of the chiral langasite Ba3NbFe3Si2O14 by means of synchrotron-radiation measurements. Two excitations are revealed that are shown to have a different nature. The first one, purely magnetic, is observed at low temperature in...

Comparison of total lipids and fatty acids from liver, heart and abdominal muscle of scalloped (Sphyrna lewini) and smooth (Sphyrna zygaena) hammerhead sharks.

SpringerPlus

Davidson BC, Nel W, Rais A, Namdarizandi V, Vizarra S, Cliff G.
PMID: 25279312
Springerplus. 2014 Sep 12;3:521. doi: 10.1186/2193-1801-3-521. eCollection 2014.

Liver, heart and abdominal muscle samples from scalloped (Sphyrna lewini) and smooth (Sphyrna zygaena) hammerhead sharks were analysed to characterise their lipid and fatty acid profiles. Samples were compared both between and within species, but there were no significant...

Showing 1 to 12 of 164 entries