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Posts Taged biosensors

Three Nanbiosis units work in the development of new sensors for the better detection of the fungus P. jirovecii, responsible for Pneumocystis pneumonia

Researchers from the CIBER-BBN have succeeded in developing detection systems for Pneumocystis jirovecii, an atypical fungus responsible for very serious pneumonia in immunosuppressed patients. These results, published in the journal Nanomaterials, are the result of collaboration between the CIBER-BBN groups led by Laura Lechuga, Ramon Eritja and Ramón Martínez Máñez, and the CIBERESP group led by Enrique J. Calderón.

The researchers acknowledge the paricipation of three NANBIOSIS units of CIBER-BBN:

The detection of the fungus in patients, who may be asymptomatic carriers until they develop pneumonia, is currently carried out using the PCR technique, requiring several hours, adequate facilities and qualified personnel to detect it. Now, the application of Nanotechnology has allowed the development of more sensitive and efficient biosensors to detect specific sequences corresponding to pathogens responsible for infectious diseases in a shorter time and without the need for large infrastructures.

In this case, a specific sequence corresponding to the gene belonging to the ribosomal subunit (mtLSU rRNA) of the P. jirovecii fungus has been detected using hairpin-shaped capture probes. These specific probes, as pointed out by Dr. Aviñó, a researcher at CIBER-BBN at the IQAC-CSIC, “are more efficient and are capable of recognizing a specific genomic sequence of the fungus and forming very stable triplex structures that can be detected on different platforms. biosensor “.

Laura Lechuga’s team at ICN2, through the use of an optical biosensor based on SPR technology, has detected in real time and without the use of markers, P. jirovecii in bronchoalveolar lavages and nasopharyngeal aspirates with a detection limit of nM level and in just a few minutes.

Likewise, the group led by Ramón Martínez-Máñez, scientific director of CIBER-BBN and principal investigator of the IQMA-IDM group at the Universitat Politècnica de València, has used the strategy of molecular gates composed of an anodic albumin matrix to develop a sensor capable of to efficiently detect real P. jirovecii samples without previous amplification steps in as little as one hour.

“These advances in the diagnosis of PCP have great potential for the development of highly sensitive point-of-care devices using direct patient samples and applicable in a wide variety of settings,” says the CIBERESP group leader. Enrique J. Calderón from the Virgen del Rocío University Hospital in Seville.

The researchers also emphasize that these techniques are very selective and can discriminate patients with other respiratory diseases derived from other microorganisms, thus allowing a more reliable diagnosis of infectious diseases.

Articles of reference:

Calvo-Lozano, O., Aviñó, A., Friaza, V., Medina-Escuela, A., S Huertas, C., Calderón, E. J., Eritja, E., Lechuga, L. M. (2020). Fast and accurate pneumocystis pneumonia diagnosis in human samples using a label-free plasmonic biosensor. Nanomaterials, 10(6), 1246. https://doi.org/10.3390/nano10061246

Pla, L., Santiago-Felipe, S., Aviñó, A., Eritja, R., Ruiz-Gaitán, A., Pemán, J., Friaza, V., Calderón, E.J. Martínez-Máñez, R., Aznar E. (2020). Triplex hybridization-based nanosystem for the rapid screening of Pneumocystis pneumonia in clinical samples. Journal of Fungi, 6(4), 292. https://doi.org/10.3390/jof6040292

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The European Commission releases a video showing the European project against coronavirus led by prof Laura Lechuga

The European Commission Representation in Barcelona has published the five-minute video “The EU fights the Covid-19 from Catalonia” in which four researchers explain the projects they are working on.

The researchers appearing in the video are  Laura Lechuga Scientific Director of NANBIOSIS unit 4 from CIBER-BBN and ICN2-CSIC and Group Leader of CIBER-BBN at the ICN2 Nanobiosensors and Bioanalytical Applications Group), who works on a sensor to detect the coronavirus in a faster, easier and cheaper way than with current PCRs, Núria Montserrat (IBEC), who works on micro-kidneys made from stem cells to test a drug able to block the virus, Alfonso Valencia (BSC), who explains the huge computation power that the BSC can bring into play to find already existent drugs that may be suitable to treat Covid-19,  and Gabriel Anzaladi (Eurecat), who studies the presence of the virus in wastewater to estimate the people infected in a given zone or the probability of a new outbreak.

The European Commission is present in all Member States through a network of offices, called “representations”, which aim to report on the Commission’s activity and to bring the policies of the European Union closer to citizens. They are also in charge of capturing the social reality and the climate of opinion at street level and transferring this information to the European institutions in Brussels so that their policies better respond to the needs of citizens. In Catalonia and the Balearic Islands, this work is carried out by the “Representation of the European Commission in Barcelona”.

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Biosensors for Pandemics

Next 6 of May wii take place the On-line Conference Biosensors for Pandemics: Reliable and efficient nanotech-based diagnostics in emergency situations, will gather worldwide well known experts in biosensing technologies currently working in COVID-19 diagnostics or having very relevant technologies in the field.

Prof. Laura Lechuga, Scientific Director of NANBIOSIS U4 Biodeposition and Biodetection Unit of CIBER-BBN and ICN2-CSIC, will be one of the speakers. Laura Lechuga is coordinating the European proyect CONVAT: advanced nanobiosensing platforms for point-of-care diagnostics and surveillance of coronavirus for rapid diagnosis and monitoring of COVID ー 19, 

To join

Deadlines:

Abstract Submission (ePoster request): April 22, 2020

Author Submission Acceptance Notification: April 24, 2020

Flash Poster Acceptance Notification: April 24, 2020

Early Bird Registration Fee: April 24, 2020

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COVID-19 diagnose, faster and cheaper.

In order speed up research into the coronavirus, the European Commission recently announced a special call for projects to tackle the COVID-19, based on already developed technologies. Projectcs were prepared in a record time and 17 proposals have been awarded founds, 6 of them with spanish colaboration and only one coordinated by Spain

CONVAT is a cooperation project between Spain, Italy and France coordinated by Prof. Laura M. Lechuga, Scientific Director of NANBIOSIS Unit 4 Biodeposition and Biodetection Unit (from CIBER-BBN and ICN2-CSCIC) and also participated by the group of Prof. Jordi Serra Cobo from the University of Barcelona, having extensive experience in the study of coronavirus in animals and its epidemiology; Prof. Remi Charrel‘s laboratory at the University of Marseille (France), leader in virology and molecular biology, pioneering the development and production of biological material for the validation of new diagnostic systems and the Italian National Institute of Infectious Diseases (INMI), where researchers from Dr Antonino Di Caro‘s laboratory were among the first to sequence the SARS-CoV-2 coronavirus, and which is the reference institute for the analysis and diagnosis of COVID-19

CONVAT will develop a point-of-care platform, for rapid diagnosis and monitoring of coronavirus, directly from the patient’s sample and without the need for testing in centralized clinical laboratories. The new device based on optical biosensor nanotechnology is espected to become massively available in less than 12 months. The project indeed aims to extend beyond the current pandemic and the human diagnosis. The new biosensor will also be used for the analysis of different types of coronavirus present in reservoir animals, such as bats, in order to observe and monitor possible evolutions of these viruses and prevent future outbreaks in humans

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Materials for Biomedical Applications Scientific School (BIOMAT-2017)

Registration is now open for the Scientific School on Materials for Biomedical Applications (BIOMAT-2017) that will take place on 19th-22nd of June 2017 in the UAB Campus (Barcelona). This school is organized by ICMAB-CSIC and it is included in the Severo Ochoa activities of the Institute.

The school is addressed to last year undergraduate, master and PhD students, who are interested in the development of materials for biomedical applications. The aim of the school is to present the design, development and application of new materials for a wide range of biomedical applications.

The school includes lectures from international and local scientists, hands-on and management activities and practical sessions. One of the practical sessions will take place at Unit 6 of NANBIOSIS and will be directed to the preparation and characterization of particulate nanomaterials with biomedical applications.

This Scientific School is an optimal opportunity to discover, learn and practice on material science focusing on fundamental science and applied research in the field of biomedicine.

There will be grants for students covering the fees of the summer school.

 

For further details and registration please go to:

https://congresses.icmab.es/matbio2017/

Registration deadline: 21st May 2017

There are only 50 places available, secure yours with an early registration.

MATBIO 2017
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