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On the dot: Quantum reproducibility

Date: Jul 15, 2014

Author: David Bradley

An international collaboration has developed a technique for creating quantum dots with identical, deterministic sizes as revealed by scanning tunnelling microscopy. The research could allow quantum dot architectures to be constructed with complete control allowing technologists to develop new nanophotonics and quantum information processing systems as well as enabling various fundamental scientific studies.

Read More thumbnail image: On the dot Quantum reproducibility

Journal Highlight: Analysis of trace metals and perfluorinated compounds in 43 representative tea products from South China

Date: Jun 30, 2014

Author: spectroscopyNOW

Six trace metals (Cd, Pb, Cr, Cu, Zn, and Mn) were analyzed in 43 representative tea products (18 green, 12 Oolong, and 13 black teas) from 7 main tea production provinces in China, using atomic absorption spectrophotometer, while two perfluorinated compounds were measured by HPLC-MS/MS.

Read More thumbnail image: Journal Highlight Analysis of trace metals and perfluorinated compounds in 43 representative tea products from South China

I like coffee: I like teeth

Date: Jun 15, 2014

Author: David Bradley

Atomic absorption spectroscopy has been used in a new study to analyse changing concentrations of calcium in tooth enamel as it responds to the antibacterial effects of strong coffee on oral microbes. The research suggests that while coffee may well be the downfall of those who wish to have a shiny, white smile, it could at least prevent coffee drinkers from losing their stained teeth.

Read More thumbnail image: I like coffee I like teeth

Journal Highlight: Metals and electrolytes in sclerotic hippocampi in patients with drug-resistant mesial temporal lobe epilepsy

Date: Jun 2, 2014

Author: spectroscopyNOW

The hippocampi of patients with drug-resistant mesial temporal lobe epilepsy and hippocampal sclerosis who underwent anterior temporal lobe resection and amygdalohippocampectomy were analysed using ICP-OES.

Read More thumbnail image: Journal Highlight Metals and electrolytes in sclerotic hippocampi in patients with drug-resistant mesial temporal lobe epilepsy

Maximal magnetism: Single-atom limit

Date: May 15, 2014

Author: David Bradley

Scientists have shown for the first time the maximum theoretical limit on the energy required to control the magnetization of a single atom. The fundamental work could have implications for the future of research into magnetism and devices that utilize the phenomenon in technology.

Read More thumbnail image: Maximal magnetism Single-atom limit

Journal Highlight: Estimation of daily aluminum intake in Japan based on food consumption inspection results: Impact of food additives

Date: May 5, 2014

Author: spectroscopyNOW

The Al contents of various food samples for young children, children, youths and adults in Japan were determined by ICP-AES.

Read More thumbnail image: Journal Highlight Estimation of daily aluminum intake in Japan based on food consumption inspection results Impact of food additives

Breaking the law: Laser focus

Date: Apr 15, 2014

Author: David Bradley

An international team has demonstrated that a nanoparticle trapped with a laser beam can temporarily violate the strict second law of thermodynamics, a feat that is impossible on the everyday time and length scales of our reality.

Read More thumbnail image: Breaking the law Laser focus

Journal Highlight: Tissue-specific copper accumulation, zinc levels, induction, and purification of metallothionein in freshwater crab Sinopotamon henanense exposed to subacute waterborne copper

Date: Apr 3, 2014

Author: spectroscopyNOW

The crab Sinopotamon henanense was exposed to waterborne copper and the accumulation of copper and zinc and metallothionein induction in gills and hepatopancreas were determined with the Cd/Hemoglobin saturation assay and AAS.

Read More thumbnail image: Journal Highlight Tissue-specific copper accumulation zinc levels induction and purification of metallothionein in freshwater crab Sinopotamon henanense exposed to subacute waterborne copper

MEMS laser: Lighting up spectroscopy and telecoms

Date: Mar 15, 2014

Author: David Bradley

Researchers have demonstrated the smallest wavelength-tunable laser built with microelectromechanical system (MEMS) technology. The device could have wide-ranging applications in telecommunications technology and spectroscopy.

Read More thumbnail image: MEMS laser Lighting up spectroscopy and telecoms

Journal Highlight: Glow discharge techniques in the chemical analysis of photovoltaic materials

Date: Mar 3, 2014

Author: spectroscopyNOW

An integrated overview is presented on the prospects of glow discharge (GD) methods in the chemical analysis of photovoltaic materials, focusing on GD coupled with high resolution MS, TOFMS and OES.

Read More thumbnail image: Journal Highlight Glow discharge techniques in the chemical analysis of photovoltaic materials
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