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Journal Highlight: Modification and characterization of polyacrylonitrile fiber by chelating ligand for preconcentration and determination of neodymium ion in biological and environmental samples

Date: Mar 4, 2013

Author: spectroscopyNOW

Chelating fibers of polyacrylonitrile prepared from iminodiacetic acid have been used for the preconcentration and determination of trace Nd(III) ions from human biological fluid and environmental waters by ICP-AES.

Read More thumbnail image: Journal Highlight Modification and characterization of polyacrylonitrile fiber by chelating ligand for preconcentration and determination of neodymium ion in biological and environmental samples

Shrinking the proton: Laser scan

Date: Feb 15, 2013

Author: David Bradley

An international research team has confirmed the surprisingly small radius of the proton using laser spectroscopy on muonic hydrogen. The new results fuel the debate as to whether the discrepancies observed can be explained by standard physics, for example an incomplete understanding of the systematic errors that are inherent to all measurements, or whether they are due to new physics, or a higher complexity than previously assumed for the structure of the proton.

Read More thumbnail image: Shrinking the proton Laser scan

Journal Highlight: Ion implanted inconel alloy – SIMS and GDMS depth profile analysis

Date: Feb 4, 2013

Author: spectroscopyNOW

SIMS and GDMS have been applied to the depth profile analysis of ion-implanted nickel alloy inconel 600, giving similar results for implanted N, Ti and Y.

Read More thumbnail image: Journal Highlight Ion implanted inconel alloy  SIMS and GDMS depth profile analysis

Counting on nano control: Molecular machines

Date: Jan 15, 2013

Author: David Bradley

STM microscopy and attendant I-V spectroscopy at the atomic scale has allowed an international team to take the next step in creating nanoscale machines. Their work now reveals a multi-component molecular motor that can be moved clockwise and anticlockwise.

Read More thumbnail image: Counting on nano control Molecular machines

Journal Highlight: Quantitative imaging of the tissue contrast agent [Gd(DTPA)]2− in articular cartilage by laser ablation ICPMS

Date: Jan 7, 2013

Author: spectroscopyNOW

An analytical protocol is described for imaging the magnetic resonance tissue contrast agent [Gd(DTPA)]2− in articular cartilage, including sample preparation, LA-ICP-MS measurements and quantification of Gd images.

Read More thumbnail image: Journal Highlight Quantitative imaging of the tissue contrast agent GdDTPA2 in articular cartilage by laser ablation ICPMS

Sounding out engine efficiency: Ultrasound scan

Date: Dec 15, 2012

Author:

Atomic absorption spectroscopy might be used to analyse the metallic content of engine residues but researchers in the UK have now turned to ultrasound to scan engine components with a view to facilitating the design of new components that are more efficient and generate lower carbon emissions.

Read More thumbnail image: Sounding out engine efficiency Ultrasound scan

Journal Highlight: On the embalmment of S. Francesco Caracciolo

Date: Dec 3, 2012

Author: spectroscopyNOW

Four samples of the remains of S. Caracciolo have been analysed for traces of embalmment using cold vapour atomic absorption spectroscopy, which revealed low background levels of As and high levels of Hg.

Read More thumbnail image: Journal Highlight On the embalmment of S_ Francesco Caracciolo

Lead and IQ: Toxic effects and tau protein

Date: Nov 15, 2012

Author:

An atomic absorption spectroscopy (AAS) study has demonstrated that exposure to the heavy metal lead increases phosphorylation of the tau protein in the brains of laboratory rats. The study offers new insights into the biochemical link between this process, lead exposure and cognitive impairment.

Read More thumbnail image: Lead and IQ Toxic effects and tau protein

Journal Highlight: Quality of hemodialysis water in a resource-poor country: The Nigerian example

Date: Nov 5, 2012

Author: spectroscopyNOW

The quality of hemodialysis water in Lagos, Nigeria, was assessed by several methods including atomic absorption spectrometry, flame photometry, molecular photoluminescence and turbidimetry.

Read More thumbnail image: Journal Highlight Quality of hemodialysis water in a resource-poor country The Nigerian example

Shape-shifting microbes: Optically trapped

Date: Oct 15, 2012

Author: David Bradley

Researchers in Germany have developed an optical trap for bacteria. The system allows them to grab hold of the microbes and scan them with a laser.

Read More thumbnail image: Shape-shifting microbes Optically trapped
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