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- Publications
- Influence
Experimental pKa determination for perfluorooctanoic acid (PFOA) and the potential impact of pKa concentration dependence on laboratory-measured partitioning phenomena and environmental modeling.
- D. C. Burns, D. Ellis, H. Li, Colin J McMurdo, E. Webster
- Chemistry, Medicine
- Environmental science & technology
- 7 November 2008
An accurately measured equilibrium acid dissociation constant (pKa) is essential for understanding and predicting the fate of perfluorocarboxylic acids (PFCAs) in the environment. The aqueous pKa of… Expand
A water-soluble azobenzene cross-linker for photocontrol of peptide conformation.
- Z. Zhang, D. C. Burns, J. Kumita, O. Smart, G. Woolley
- Chemistry, Medicine
- Bioconjugate chemistry
- 20 June 2003
We have designed and synthesized a water-soluble, sulfonated version of an azobenzene-based thiol-reactive cross-linker that can be introduced into peptides and proteins and act as a conformational… Expand
Structural and optical characterization of dissolved organic matter from the lower Athabasca River, Canada.
- C. Guéguen, D. C. Burns, Alison McDonald, Brooke A. Ring
- Chemistry, Medicine
- Chemosphere
- 1 May 2012
Dissolved organic matter (DOM) is a ubiquitous constituent of natural waters and is comprised of a variety of chemically heterogeneous molecular structures and functional groups. DOM is often… Expand
A predictive tool for assessing 13C NMR chemical shifts of flavonoids
- D. C. Burns, D. Ellis, R. March
- Chemistry, Medicine
- Magnetic resonance in chemistry : MRC
- 1 October 2007
Herein are presented the 1H and 13C NMR data for seven monohydroxyflavones (3‐, 5‐, 6‐, 7‐, 2′‐, 3′‐, and 4′‐hydroxyflavone), five dihydroxyflavones (3,2′‐, 3,3′‐, 3,4′‐, 3,6‐,… Expand
Assignment of 1H and 13C spectra and investigation of hindered side‐chain rotation in lupeol derivatives †
- D. C. Burns, W. Reynolds, Greg O. Buchanan, P. Reese, R. Enríquez
- Chemistry
- 1 July 2000
Complete 1H and 13C spectral assignments are reported for lupeol (1a) and two derivatives where the C‐30 methyl group is replaced by CH2OH (1b) and HC O (1c). Compound 1c shows conformationally… Expand
Response to Comment on “Experimental pKa Determination for Perfluorooctanoic Acid (PFOA) and the Potential Impact of pKa Concentration Dependence on Laboratory-Measured Partitioning Phenomena and…
- D. C. Burns, D. Ellis, E. Webster, Colin J McMurdo
- Chemistry
- 28 May 2009
Stereochemical inversion of (S)-reticuline by a cytochrome P450 fusion in opium poppy.
- S. C. Farrow, J. Hagel, Guillaume A W Beaudoin, D. C. Burns, P. Facchini
- Chemistry, Medicine
- Nature chemical biology
- 1 July 2015
The gateway to morphine biosynthesis in opium poppy (Papaver somniferum) is the stereochemical inversion of (S)-reticuline since the enzyme yielding the first committed intermediate salutaridine is… Expand
Synthesis of 3,3′-bis(sulfonato)-4,4′-bis(chloroacetamido)azobenzene and cysteine cross-linking for photo-control of protein conformation and activity
- D. C. Burns, Fuzhong Zhang, G. Woolley
- Chemistry, Medicine
- Nature Protocols
- 1 February 2007
This protocol describes a procedure for the synthesis of 3,3′-bis(sulfonato)-4,4′-bis(chloroacetamido)azobenzene (BSBCA), a water-soluble, thiol-reactive, photo-switchable cross-linker. In addition,… Expand
The toxicity of titanium dioxide nanopowder to early life stages of the Japanese medaka (Oryzias latipes).
- G. Paterson, Jamie M. Ataria, M. E. Hoque, D. C. Burns, C. Metcalfe
- Biology, Medicine
- Chemosphere
- 1 February 2011
In this study, fertilized Japanese medaka (Oryzias latipes) embryos were exposed from fertilization to 5 d post-hatch using static non-renewal assays to aqueous suspensions of titanium dioxide… Expand
CRAPT: an improved version of APT with compensation for variations in JCH
- T. Burrow, D. C. Burns, K. Krishnamurthy, W. Reynolds
- Chemistry, Medicine
- Magnetic resonance in chemistry : MRC
- 1 May 2014
A modified version of the attached proton test (APT) sequence for 13C spectral editing, which we call CRisis‐APT (CRAPT), is developed and tested on representative organic compounds. CRAPT… Expand