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Titanic isotopes: Mooning around nitrogen

Date: Jul 1, 2014

Author: David Bradley

New evidence for the origins of nitrogen in the atmosphere of Saturn's moon has been unearthed by ESA and NASA funded scientists and suggests that the element comes from protosolar ammonia found in the cold birthplace of the most ancient comets of the Oort cloud. The discovery precludes the hypothesis that Titan's building blocks formed within the warm disk of material thought to have surrounded the fledgling planet Saturn itself during its formation.

Read More thumbnail image: Titanic isotopes Mooning around nitrogen

Journal Highlight: Intraoperative fluorescence delineation of head and neck cancer with a fluorescent anti-epidermal growth factor receptor nanobody

Date: Jun 9, 2014

Author: spectroscopyNOW

Orthotopic tongue tumors and cervical lymph node metastases in a mouse model were clearly identified intraoperatively using a recently developed fluorescent EGFR-targeting nanobody, giving surgeons real-time visualization of tumors during surgery.

Read More thumbnail image: Journal Highlight Intraoperative fluorescence delineation of head and neck cancer with a fluorescent anti-epidermal growth factor receptor nanobody

UV poop test: Samples water

Date: Jun 1, 2014

Author:

Contamination of water with fecal matter is a serious risk, especially in the developing world, for several diseases that are often lethal. Now, UV technology capable of sampling water systems to find indicators of fecal matter at levels thousandths or even millionths of times lower than those detected by conventional methods has been developed by a team of researchers at Texas A&M University.

Read More thumbnail image: UV poop test Samples water

Journal Highlight: Kinetics and mechanism studies on dispersion of CNT in SDS aqueous solutions

Date: May 12, 2014

Author: spectroscopyNOW

The kinetics and mechanism of the dispersion of carbon nanotubes in sodium dodecyl sulfate aqueous solutions were studied by UV-visible absorption spectroscopy.

Read More thumbnail image: Journal Highlight Kinetics and mechanism studies on dispersion of CNT in SDS aqueous solutions

Microgel sensors: Nerve gas responders

Date: May 1, 2014

Author: David Bradley

Writing in the journal Angewandte Chemie, a Canadian research team has demonstrated the optical properties of stacked microgel structures and how they might change in response to variations in light levels, the pH or temperature of the surroundings or even the presence of particular substrates including nerve gases.

Read More thumbnail image: Microgel sensors Nerve gas responders

Journal Highlight: Discrimination of vinegars using a catalytic nanomaterials-based chemiluminescence sensor array

Date: Apr 7, 2014

Author: spectroscopyNOW

A chemiluminescence sensor array based on nine catalytic nanomaterials was prepared for the discrimination of eight vinegars, the response patterns being obtained as fingerprints for a given compound.

Read More thumbnail image: Journal Highlight Discrimination of vinegars using a catalytic nanomaterials-based chemiluminescence sensor array

Look back: UV view of the cosmic

Date: Apr 1, 2014

Author: David Bradley

Astrophysicists are collaborating on an ultraviolet telescope, a cosmic ray telescope, for the International Space Station that will be installed before the end of the decade and will look back at Earth in order observe the collisions of cosmic rays with our atmosphere.

Read More thumbnail image: Look back UV view of the cosmic

Journal Highlight: Real-time noninvasive monitoring of in vivo inflammatory responses using a pH ratiometric fluorescence imaging probe

Date: Mar 10, 2014

Author: spectroscopyNOW

A new ratiometric optical pH probe has been developed by combining pH-sensitive and pH-insensitive fluorescent dyes into nanoparticles for in vivo optical imaging of human inflammatory responses.

Read More thumbnail image: Journal Highlight Real-time noninvasive monitoring of in vivo inflammatory responses using a pH ratiometric fluorescence imaging probe

Shaking the fake tree: UV seeds the way

Date: Mar 1, 2014

Author: David Bradley

US researchers have constructed mock plant seeds, dusted them with fluorescent powder, and then released them at tree canopy height to simulate real seed dispersal on the wind. They could then return after dark with ultraviolet lamps to track where the seeds had landed, offering a neat and novel way to learn about certain aspects of the savanna eco-system.

Read More thumbnail image: Shaking the fake tree UV seeds the way

Journal Highlight: Rapid determination of isoamyl nitrite in pharmaceutical preparations by flow injection analysis with on-line UV irradiation and luminol chemiluminescence detection

Date: Feb 10, 2014

Author: spectroscopyNOW

A simple, rapid and sensitive method for the determination of isoamyl nitrite was developed using a flow injection analysis system equipped with a chemiluminescence detector and on-line photoreactor.

Read More thumbnail image: Journal Highlight Rapid determination of isoamyl nitrite in pharmaceutical preparations by flow injection analysis with on-line UV irradiation and luminol chemiluminescence detection
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