UV/Vis Spectroscopy / Ezine
Journal Highlight: PpIX fluorescence combined with auto-fluorescence for detection of non-melanoma skin cancer: An intra-patient direct comparison study
Date: May 7, 2012
Author:
This study aimed to compare the accuracy of PpIX fluorescence and auto-fluorescence normalized PpIX fluorescence detection systems for the localization non-melanoma skin cancers.
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Making unstickable adhesives: Mussel power
Date: May 1, 2012
Author: David Bradley
UV and NMR spectroscopy have been used to characterise a novel adhesive that functions in marine environments by mimicking the notoriously strong, natural glue used by mussels to cling to rocks and ships' hulls.
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Journal Highlight: Synthesis of novel blue-light-emitting polypyridine
Date: Apr 30, 2012
Author:
A new regioregular head-to-tail-type polypyridine with methoxyethoxyethoxy side chains that was synthesized by Kumada-Tamao coupling polymerization of a Grignard monomer emitted strong blue light when dissolved in chloroform and irradiated with UV light.
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In recognition of chirality: Ultraviolet probe
Date: Apr 1, 2012
Author: David Bradley
Identifying the chirality of a compound in the gas phase using light is difficult because of the low particle densities present. However, collision-free conditions could lead to highly sensitive analytical applications as well as allowing researchers to unravel fundamental aspects of the way light interacts with matter
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Journal Highlight: Laser tissue welding analyzed using fluorescence, Stokes shift spectroscopy, and Huang-Rhys parameter
Date: Mar 12, 2012
Author:
Near infrared continuous-wave laser radiation was used to weld porcine aorta and skin samples and the fluorescence spectra were measured for the key native molecules collagen, elastin and tryptophan in welded and non-welded tissues to differentiate the Huang-Rhys parameter values of the chromophores.
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Journal Highlight: Dating bloodstains with fluorescence lifetime measurements
Date: Feb 13, 2012
Author:
A highly reproducible correlation has been established between the fluorescence lifetime and the age of a bloodstain, using dog blood as a model, which was related to the alteration of tryptophan, the major endogenous fluorophore in blood proteins.
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Breast implants: Testing for contamination
Date: Feb 1, 2012
Author: David Bradley
UV-Vis spectroscopy is one of the analytical tools used to test the safety of breast implant implantation based on a funnel, as opposed to digital method. Results show that overt infection and biofilm formation might be better avoided using the funnel technique to avoid contamination.
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Journal Highlight: Evaluating fluorescence and ultraviolet photometry to assess dissolved organic matter removal during coagulation-flocculation
Date: Jan 16, 2012
Author:
Ultraviolet absorption at 254 nm and the intensities of fluorescence peaks corresponding to humic, fulvic and protein-like material were evaluated to assess dissolved organic carbon (DOC) removal during coagulation-flocculation.
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Five-star restaurant effluent: UV on the menu
Date: Jan 5, 2012
Author: David Bradley
A water-quality system based on multiple sensors, UV-Vis spectroscopy, and turbidity measurements can be used to monitor waste water from restaurants and other sites. Writing in the journal Water Research, the developing team offers a case study as proof of principle.
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Journal Highlight: Dipolar versus octupolar triphenylamine-based fluorescent organic nanoparticles as brilliant one- and two-photon emitters for (bio)imaging
Date: Dec 12, 2011
Author:
Two related triphenylamine-based dipolar and octupolar fluorophores were used to prepare aqueous suspensions of fluorescent organic nanoparticles exhibiting extremely high one- and two-photon brightness, superior to those obtained for quantum dots.
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