Contact Information:

Media Contact

Duncan Sandes
pressoffice@exeter.ac.uk

Twitter: uniofexeter

http://www.exeter.ac.uk




Kredyty mieszkaniowe Kredyty mieszkaniowe

Sprawdź aktualny ranking najlepszych kredytów mieszkaniowych w Polsce - atrakcyjne kredytowanie nieruchomości.

PRESS-NEWS.org - Press Release Distribution
FREE PRESS RELEASES DISTRIBUTION
RSS - Press News Release
Add Press Release

Butterfly wings help break the status quo in gas sensing


2015-09-01
(Press-News.org) The unique properties found in the stunning iridescent wings of a tropical blue butterfly could hold the key to developing new highly selective gas detection sensors. Pioneering new research by a team of international scientists, including researchers from the University of Exeter, has replicated the surface chemistry found in the iridescent scales of the Morpho butterfly to create an innovative gas sensor. The ground-breaking findings could help inspire new designs for sensors that could be used in a range of sectors, including medical diagnostics, industry, and the military. The research, published in the highly respected scientific journal, Nature Communications on September 1st, describes how the composition of gases in different environments can be detected by measuring small colour changes of the innovative bio-inspired sensor. Professor Pete Vukusic, one of the authors of the research and part of the Physics department at the University of Exeter said: "Bio-inspired approaches to the realisation of new technologies are tremendously valuable. In this work, by developing a detailed understanding of the subtle way in which the appearance and colour of the Morpho butterfly arises, and the way this colour depends on its local environment, our team has discovered a remarkable way in which we can advance sensor and detector technology rapidly." Tiny tree-like nanostructures in the scales of Morpho wings are known to be responsible for the butterfly's brilliant iridescence. Previous studies have shown that vapour molecules adhere differently to the top of these structures than to the bottom due to local chemistry within the scales. This selective response to vapour molecules is the key to this bio-inspired gas sensor. The research team, led by scientists from GE Global Research in the USA and also comprised of University of Exeter, State University of New York at Albany, and Air Force Research Laboratory, produced these new kind of colorimetric sensors that favourably compete with conventional gas sensor arrays in simplicity, stability, and cost-savings. At present, reliable and cost-effective sensors for detection of small but meaningful gas leaks in a multitude of industrial processes remain an unmet environmental, health, and safety goal. The research team believe this highly selective colorimetric sensor could represent a significant advancement in gas leak detection performance in the future. Dr. Radislav Potyrailo, the study's lead author and Principal Scientist at Global Research's headquarters in Niskayuna, New York, said: "Material-design principles applied in nature impact many scientific fields. We found the origin of the unusually high gas selectivity of the wing scales of Morpho butterflies and fabricated a new kind of gas sensor based on these principles." "These new sensors not only selectively detect separate gases but also quantify gases in mixtures, and when blended with a variable chemical background. Our next goal is to make these sensors in a cost-effective manner to offer new attractive sensing solutions in the marketplace." Dr. Timothy Starkey, researcher at the University of Exeter, said: "Our research into these bio-inspired sensors demonstrates the huge value in applying the scientific learnings from the biological world to develop technologies for real world applications."

INFORMATION:


ELSE PRESS RELEASES FROM THIS DATE:

New NGA global map advances R&D in geophysics and nonproliferation

2015-09-01
A team of researchers led by scientists at the National Geospatial-Intelligence Agency published a new map Sept. 1 that characterizes the Earth's radioactivity and offers new and potential future applications for basic science research and nonproliferation efforts. The Antineutrino Global Map 2015, or AGM2015, is an unprecedented experimentally-informed model of the Earth's natural and manmade antineutrino flux. The map uses open-source geophysical data sets and publicly available international antineutrino detection observational data to depict varying levels of radioactivity ...

Most CRT-P patients would not benefit from addition of defibrillator

2015-09-01
London, UK - 1 Sept 2015: Most patients with a cardiac resynchronisation therapy (CRT) pacemaker would not benefit from the addition of a defibrillator, according to results from the CeRtiTuDe cohort study presented for the first time today at ESC Congress1 and published in European Heart Journal.2 "The choice between CRT with (CRT-D) or without (CRT-P) a defibrillator remains a contentious issue," said Professor Jean-Yves Le Heuzey, cardiologist at Georges Pompidou Hospital, René Descartes University in Paris, France. "No randomised clinical trial has been conducted ...

Which blood thinner works better during stent placement? It's still a toss-up

2015-09-01
GREAT NECK, NY - A large, ambitious contrast of blood-thinning medications used during cardiac stent placement suggests that a very expensive drug offers no clear safety benefits over a much more affordable option, according to a prominent North Shore-LIJ researcher and cardiologist. An insightful editorial in the Online First New England Journal of Medicine on Sept. 1 by Peter Berger, M.D., Senior Vice President for Clinical Research at the North Shore-LIJ Health System, addresses the controversial comparison of the blood thinners heparin and bivalirudin (known commercially ...

Full-time professional to full-time mother: A choice laden with cost

2015-09-01
London, UK (September 1, 2015) - Women leaving work to raise children have to redefine who they are, a study from the SAGE journal Human Relations finds. After exiting professional and managerial occupations, mothers are engaged in an ongoing mother/professional identity struggle, argue the researchers Shireen Kanji and Emma Cahusac. The process through which the mothers' choice is constructed as 'right' does not occur before their exit from work but manifests itself afterwards and intensifies over time, the study reveals. "Analysis of mothers' sense making reveals how ...

Carbonated drinks linked with out-of-hospital cardiac arrest of cardiac origin

2015-09-01
London, UK - 1 Sept 2015: Carbonated beverages are associated with out-of-hospital cardiac arrests of cardiac origin, according to results from the All-Japan Utstein Registry presented for the first time today at ESC Congress.1 The study in nearly 800 000 patients suggests that limiting consumption of carbonated beverages may be beneficial for health. "Some epidemiologic studies have shown a positive correlation between the consumption of soft drinks and the incidence of cardiovascular disease (CVD) and stroke, while other reports have demonstrated that the intake of ...

Large parks key to city success

2015-09-01
More than half the world's population now lives in cities. As numbers continue to swell, decision-makers across the globe grapple with how best to accommodate growing resident numbers while maintaining healthy urban ecosystems. Previous research has demonstrated that urban green spaces and trees yield far-reaching benefits to humans, from increased happiness and health to absorbing surface water run-off and storing carbon. Researchers have long debated whether it is better to build compact developments with large parks or nature reserves, as often found in Europe and Japan, ...

Newly engineered CAR T cells can better discriminate between cancer and normal cells

2015-09-01
A new development in engineering chimeric antigen receptor (CAR) T cells, called affinity tuning, can make the CAR T cells spare normal cells and better recognize and attack cancer cells, which may help lower the toxicity associated with this type of immunotherapy when used against solid tumors, according to a preclinical study. Many solid cancers have high levels of certain proteins such as ErbB2 and EGFR, which make them suitable targets for anticancer therapies. However, such proteins are also present at low levels in normal cells. Because of this, CAR T cells ...

Modified CAR T cells can preferentially target cancer cells and spare normal cells

2015-09-01
Engineering chimeric antigen receptor (CAR) T cells to lower their affinity for the protein epithelial growth factor receptor (EGFR) made the cells preferentially recognize and eliminate tumor cells that have high amounts of EGFR while sparing normal cells that have lower amounts of the protein, according to a preclinical study. CAR T cells that are currently being tested to treat B-cell malignancies target a specific protein present on leukemia and lymphoma, but these immune cells cannot distinguish cancer cells from normal cells, explained Cooper. Even though such ...

Redefining pediatric malnutrition to improve treatment

2015-09-01
In recent years, an effort has been underway to redefine malnutrition in pediatric patients to include both the acute clinical population and the more traditional ambulatory populations. Identifying and treating malnutrition in pediatric patients is important from an acute standpoint and to ensure that children have enough nutrition to reach optimal final height and development. Pediatric malnutrition in the clinical setting was recently defined by the Academy of Nutrition and Dietetics and A.S.P.E.N. as "an imbalance between nutrient requirements and intake that results ...

Daily marijuana use among US college students highest since 1980

2015-09-01
ANN ARBOR--Daily marijuana use among the nation's college students is on the rise, surpassing daily cigarette smoking for the first time in 2014. A series of national surveys of U.S. college students, as part of the University of Michigan's Monitoring the Future study, shows that marijuana use has been growing slowly on the nation's campuses since 2006. Daily or near-daily marijuana use was reported by 5.9 percent of college students in 2014--the highest rate since 1980, the first year that complete college data were available in the study. This rate of use is up ...

LAST 30 PRESS RELEASES:

How your brain decides blame and punishment -- and how it can be changed

Uniquely human brain region enables punishment decisions

Pinpointing punishment

Chapman University publishes research on attractiveness and mating

E-cigarettes: Special issue from Nicotine & Tobacco Research

Placental problems in early pregnancy associated with 5-fold increased risk of OB & fetal disorders

UT study: Invasive brood parasites a threat to native bird species

Criminals acquire guns through social connections

Restoring ocean health

Report: Cancer remains leading cause of death in US Hispanics

Twin study suggests genetic factors contribute to insomnia in adults

To be fragrant or not: Why do some male hairstreak butterflies lack scent organs?

International team discovers natural defense against HIV

Bolivian biodiversity observatory takes its first steps

Choice of college major influences lifetime earnings more than simply getting a degree

Dominant strain of drug-resistant MRSA decreases in hospitals, but persists in community

Synthetic biology needs robust safety mechanisms before real world application

US defense agencies increase investment in federal synthetic biology research

Robots help to map England's only deep-water Marine Conservation Zone

Mayo researchers identify protein -- may predict who will respond to PD-1 immunotherapy for melanoma

How much water do US fracking operations really use?

New approach to mammograms could improve reliability

The influence of citizen science grows despite some resistance

Unlocking secrets of how fossils form

What happens on the molecular level when smog gets into the lungs?

Using ultrasound to clean medical instruments

Platinum and iron oxide working together get the job done

Tiny silica particles could be used to repair damaged teeth, research shows

A quantum lab for everyone

No way? Charity's logo may influence perception of food in package

[Press-News.org] Butterfly wings help break the status quo in gas sensing
Press-News.org is a service of DragonFly Company. All Rights Reserved.
Issuers of news releases are solely responsible for the accuracy of their content.