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Autumn leaves: Different this year thanks to spectroscopy

Date: Nov 1, 2011

Author: David Bradley

Ultraviolet spectroscopy, as well as NMR and mass spectrometry, have been used by an Austrian team to reveal the existence of a previously unknown chlorophyll decomposition product in the autumn leaves of Norway maples. The novel structure suggests an entirely different degradation route not seen in other deciduous trees is present. The work suggests that the route is more akin to the formation of bile pigment from broken down haemoglobin.

Read More thumbnail image: Autumn leaves Different this year thanks to spectroscopy

Journal Highlight: Template-assisted fabrication and characterization of photoluminescent polymer nanopillars

Date: Oct 10, 2011

Author:

A process has been described for the fabrication of photoluminescent nanopillars by replication from nanoporous anodic alumina via template wetting using polymer from different chemical families.

Read More thumbnail image: Journal Highlight Template-assisted fabrication and characterization of photoluminescent polymer nanopillars

Fungal production: Nanobiocomposite for pollution control

Date: Oct 1, 2011

Author: David Bradley

A whole raft of techniques, including UV-Vis spectroscopy has been used to characterise systematically biological composites containing silver-nanocrystals produced by the fungus Cylindrocladium floridanum in a novel, environmentally benign biological process. The biocomposite can rapidly degrade the widespread toxic pollutant nitrophenol.

Read More thumbnail image: Fungal production Nanobiocomposite for pollution control

Journal Highlight: Dual-color fluorescence lifetime correlation spectroscopy to quantify protein-protein interactions in live cell

Date: Sep 6, 2011

Author:

Problems with crosstalk in dual-color fluorescence correlation spectroscopy studies of protein interactions in living cells have been overcome with an approach based on fluorescence lifetime correlation spectroscopy.

Read More thumbnail image: Journal Highlight Dual-color fluorescence lifetime correlation spectroscopy to quantify protein-protein interactions in live cell

Adenine pathways: UV protection racket

Date: Sep 1, 2011

Author: David Bradley

A collaboration between teams in Germany and the US has shown that one of the building blocks of the nucleic acids DNA and RNA, adenine, has a previously unrecognised variable range of ionization energies along its reaction pathways. The finding could improve our understanding of experimental data regarding how adenine survives exposure to ultraviolet light, showing that the processes might be more complicated than previously thought. However, it also has potentially far-reaching implications for...

Read More thumbnail image: Adenine pathways UV protection racket

Journal Highlight: Automated classification of multicolored rolling circle products in dual-channel wide-field fluorescence microscopy

Date: Aug 8, 2011

Author:

Image analysis methods are presented for the detection and classification of single molecules and single-molecule interactions detected using padlock probes or proximity ligation.

Read More thumbnail image: Journal Highlight Automated classification of multicolored rolling circle products in dual-channel wide-field fluorescence microscopy

Sunburn solution: UV damage pivots on single electron

Date: Aug 1, 2011

Author: David Bradley

Researchers who have been working for nearly a decade to piece together the process by which an enzyme repairs UV-damaged DNA have finally witnessed the entire process in full detail in the laboratory and it seems just one electron underpins the whole process pointing to a potential treatment for sunburn.

Read More thumbnail image: Sunburn solution UV damage pivots on single electron

Journal Highlight: Synchronous fluorescence spectroscopy as a novel tool to enable PAT applications in bioprocesses

Date: Jul 11, 2011

Author:

Synchronous fluorescence spectroscopy was evaluated as a new tool for real-time bioprocess monitoring of animal cell cultures using bioreactor cultures of three monoclonal antibody-producing CHO cell lines. The technique provides data on various fluorescent compounds in a single spectrum, showing improved peak resolution and recording speed.

Read More thumbnail image: Journal Highlight Synchronous fluorescence spectroscopy as a novel tool to enable PAT applications in bioprocesses

Inked up: Electrophoresis spots forged documents

Date: Jul 1, 2011

Author: David Bradley

Discriminating between original documents produced using an inkjet printer is now much easier and could be used in forensic analysis to spot forgeries and counterfeit documents through the coupling of micellar electrophoretic capillary chromatography (MECC) and UV-Vis spectroscopic data.

Read More thumbnail image: Inked up Electrophoresis spots forged documents

Journal Highlight: On site noninvasive assessment of peri-implant inflammation by optical spectroscopy

Date: Jun 13, 2011

Author:

The diagnostic potential of optical spectroscopy in peri-implant inflammation in vivo was evaluated by assessing multiple inflammatory parameters (tissue oxygenation, total tissue hemoglobin, deoxyhemoglobin, oxygenated hemoglobin and tissue edema) simultaneously.

Read More thumbnail image: Journal Highlight On site noninvasive assessment of peri-implant inflammation by optical spectroscopy
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