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Showing 1 to 12 of 301 entries
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Trashcano: Developing a quantitative teaching tool to understand ballistics accelerated by explosive volcanic eruptions

discipline specific instruction (e.g., engineering curriculum, social science teachers, geology pedagogy)

Kennedy B, Unwin H, Vasseur J, Wadsworth F.
GSID: yifVGwgwtssJ
F Wadsworth, H Unwin, J Vasseur, B Kennedy… - 2018 - ir.canterbury.ac.nz

Accurate predictions of volcanological phenomena, such as the trajectory of blocks accelerated by volcanic explosions, require quantitative skills training. Large outdoor …

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...

A Jurassic pterosaur from Patagonia and the origin of the pterodactyloid neurocranium.

PeerJ

Codorniú L, Paulina Carabajal A, Pol D, Unwin D, Rauhut OW.
PMID: 27635315
PeerJ. 2016 Aug 30;4:e2311. doi: 10.7717/peerj.2311. eCollection 2016.

Pterosaurs are an extinct group of highly modified flying reptiles that thrived during the Mesozoic. This group has unique and remarkable skeletal adaptations to powered flight, including pneumatic bones and an elongate digit IV supporting a wing-membrane. Two major...

Electrochemistry of ferrocene derivatives on highly oriented pyrolytic graphite (HOPG): quantification and impacts of surface adsorption.

Physical chemistry chemical physics : PCCP

Cuharuc AS, Zhang G, Unwin PR.
PMID: 26812483
Phys Chem Chem Phys. 2016 Feb 14;18(6):4966-77. doi: 10.1039/c5cp06325f.

Cyclic voltammetry of three ferrocene derivatives - (ferrocenylmethyl)trimethylammonium (FcTMA(+)), ferrocenecarboxylic acid (FcCOOH), and ferrocenemethanol (FcCH2OH) - in aqueous solutions shows that the reduced form of the first two redox species weakly adsorbs onto freshly cleaved surfaces of highly oriented...

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...

Differential-Concentration Scanning Ion Conductance Microscopy.

Analytical chemistry

Perry D, Page A, Chen B, Frenguelli BG, Unwin PR.
PMID: 28992688
Anal Chem. 2017 Nov 21;89(22):12458-12465. doi: 10.1021/acs.analchem.7b03543. Epub 2017 Oct 31.

Scanning ion conductance microscopy (SICM) is a nanopipette-based scanning probe microscopy technique that utilizes the ionic current flowing between an electrode inserted inside a nanopipette probe containing electrolyte solution and a second electrode placed in a bulk electrolyte bath,...

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...

Impact of Adsorption on Scanning Electrochemical Microscopy Voltammetry and Implications for Nanogap Measurements.

Analytical chemistry

Tan SY, Zhang J, Bond AM, Macpherson JV, Unwin PR.
PMID: 26877069
Anal Chem. 2016 Mar 15;88(6):3272-80. doi: 10.1021/acs.analchem.5b04715. Epub 2016 Feb 26.

Scanning electrochemical microscopy (SECM) is a powerful tool that enables quantitative measurements of fast electron transfer (ET) kinetics when coupled with modeling predictions from finite-element simulations. However, the advent of nanoscale and nanogap electrode geometries that have an intrinsically...

Electrodeposition and Screening of Photoelectrochemical Activity in Conjugated Polymers Using Scanning Electrochemical Cell Microscopy.

Langmuir : the ACS journal of surfaces and colloids

Aaronson BD, Garoz-Ruiz J, Byers JC, Colina A, Unwin PR.
PMID: 26502089
Langmuir. 2015 Nov 24;31(46):12814-22. doi: 10.1021/acs.langmuir.5b03316. Epub 2015 Nov 10.

A number of renewable energy systems require an understanding and correlation of material properties and photoelectrochemical activity on the micro to nanoscale. Among these, conducting polymer electrodes continue to be important materials. In this contribution, an ultrasensitive scanning electrochemical...

Current perspectives on minimal cerebral dysfunction.

The Australian journal of physiotherapy

Unwin J.
PMID: 25025971
Aust J Physiother. 1995;41(2):109-12. doi: 10.1016/S0004-9514(14)60424-4.

Children with minimal cerebral dysfunction (MCD) are a large client group for many paediatric physiotherapists. The increasing number of research papers published in the area of MCD are often complex and difficult to interpret because the children to whom...

Satisfaction with a physiotherapy service to preschools.

The Australian journal of physiotherapy

Unwin J, Sullivan M.
PMID: 11676796
Aust J Physiother. 2000;46(2):133-137. doi: 10.1016/s0004-9514(14)60321-4.

This paper explores satisfaction with a newly developed physiotherapy service to preschools. In collaboration with the South Australian Department of Education Training and Employment, the School of Physiotherapy at the University of South Australia began a visiting physiotherapy service...

In situ observation of the surface processes involved in dissolution from the cleavage surface of calcite in aqueous solution using combined scanning electrochemical-atomic force microscopy (SECM-AFM).

Chemphyschem : a European journal of chemical physics and physical chemistry

Jones CE, Unwin PR, Macpherson JV.
PMID: 12619412
Chemphyschem. 2003 Feb 17;4(2):139-46. doi: 10.1002/cphc.200390023.

The surface processes involved in the initial stages of the proton-assisted dissolution of the calcite single crystal cleavage plane (1014) have been identified using a combined scanning electro-chemical-atomic force microscope (SECM-AFM). This instrument employs a platinum-coated AFM probe, which...

Showing 1 to 12 of 301 entries