HOME  »  News
Researchers from UA propose new solution to inactivation of drug resistant bacteria in sewage

A multidisciplinary team from the University of Aveiro, including CESAM members, has been working on new applications of scientific methods used in other areas in order to seek a solution to the resistance of bacterial strains to various antibiotics. 
One such method, named photodynamic therapy has been tested in the treatment of hospital sewerage, where multidrug-resistant bacteria are frequently found, and according to studies conducted, so far it has shown to be much more effective than other conventional approaches.
Additional information; http://www.cienciahoje.pt/inde.....

CESAM article highlighted in 'Global Medical Discovery'

The CESAM article 'Nucleic acid changes during photodynamic inactivation of bacteria by cationic porphyrin' published in 'Bioorganic and Medicinal Chemistry' journal has selected by Global Medical Discovery as a key scientific article contributing to excellence in biomedical research.
Link: http://globalmedicaldiscovery......

CESAM researchers publish about animals with chloroplasts in the journal of the Royal Society

A team of researchers of CESAM published a paper in Philosophical Transactions of the Royal Society B, a journal of high scientific impact, concerning the research on 'kleptoplasts', the name given to chloroplasts in the tissues of a non-photosynthetic host.
The article updates the state-of-the-art on kleptoplast photophysiology, focusing on the comparative analysis of the responses to light of the chloroplasts when in their original, macroalgal cells, and when sequestered in animal cells and functioning as kleptoplasts.
Abstract of the article here.

Where's the squirrel?

The little red squirrel had settled all over the country for many centuries. The disappearance of forests and woods where it used to roam have led to its scarcity. A while back there were news of its return, but where does it walk now? That's what a study of CESAM/UA intends to find out.
Rita Gomes Rocha created the red squirrel project in Portugal with the aim to better understand this species, their behavior patterns and identify factors that may influence its expansion. The data will be the subject of study within her postdoctoral work at UA.
News at PÚBLICO: http://www.publico.pt/local/no.....1627258#/2  
Ciência Hoje: http://www.cienciahoje.pt/inde.....

UA biologists discover the wild world of the planet

Biology and genetics, management and conservation of animal populations, study of ecosystems and biodiversity are some of the areas that the Wildlife Unit of UA/CESAM embraced within and outside the country. Coordinated by the biologist Carlos Fonseca, the Unit has fifty researchers, divided between the national territory, several European countries, Brazil, Bolivia, Cape Verde and Mozambique, contributing all to a harmonious relationship between humankind and the environment.
Interview:  http://uaonline.ua.pt/pub/detail.asp?c=37493

Research of CESAM developed to help consumers

A team of biologists of CESAM developed a novel traceability test that, through a microbiological examination of fish mucus, determine the provenance of the product. The test is ready to be used by any saltwater fish farming.
More details: http://uaonline.ua.pt/pub/deta.....

CESAM researchers appointed as national representatives of the COST action 'Connecting European connectivity research'

Successful prediction of pathways of storm runoff generation and associated soil erosion is of considerable societal importance, including off-site impacts such as water quality and the provision of related ecosystem services.
The key benefit of this Action will be to establish connectivity as a research paradigm. The Action will permit transfer of current understanding into useable science, by developing it’s conceptual basis and transferring it into a series of monitoring and modelling tools that will provide the platform for indices that will inform holistic management of catchment systems.
More details about Action: http://www.cost.eu/domains_act.....

Research Game, an online game addressed to students from 10 years old coming from all European Schools

The RESEARCH GAME project, with participation of CESAM/UA, aims at developing a new teaching approach and pedagogical strategy for learning a methodology useful in all the subjects of the scientific research, and also to promote and apply creative and innovative thinking. The use of new technologies and the game (Game Based Learning) will make a discipline more appealing and engaging for students of new generations. The Project has created an Internet-based educational game to develop an understanding of research work and to teach best practices.
For more info please read the Game Rules.




CESAM work highlighted in 'Chemistry World' web platform

Shining a light on hospital wastewater

Researchers in Portugal looking to find new ways to inactivate multidrug resistant-pathogenic bacteria have found an alternative to the traditional expensive and often ineffective methods for treating hospital effluent.
Hospital wastewater has the potential to be a threat to public health as it can contain bacteria that may facilitate resistance transfer to other species within sewage treatment plants. As Adelaide Almeida, who led the study at the the University of Aveiro explains, ‘some pathogenic bacteria are more concentrated in hospital wastewaters and some of these strains are resistant to antibiotics, such as vancomycin-resistant enterococci and methicillin-resistant Staphylococcus aureus.’
Almeida’s team has shown that photodynamic inactivation (PDI) can effectively inactivate multidrug resistant-pathogenic bacteria. PDI uses a nontoxic photosensitiser, in this case a cationic porphyrin, which absorbs energy from visible light and transfers it to other surrounding molecules, creating highly cytotoxic reactive oxygen species (ROS) that inactivate microbial cells.

More details: http://www.rsc.org/chemistryworld/2014/02


CESAM presents platform for protection of oil spills impacts

João Miguel Dias, professor in the Department of Physics and researcher of CESAM, presented the main conclusions of the recent meeting of the international project "SPRES-Oil Spill Prevention and Response at Local Scales", held at the UA.
In this event, an operational platform that integrates features of forecasting in real time, oil spills at local level and results of risk analysis was presented.
More details: http://uaonline.ua.pt/pub/deta.....