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Posts Taged point-of-care-devices

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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Nanotechnology bio applications in the clinical diagnosis II: biosensor BiMW for the early diagnosis of bacterial infections in cirrhotic patients

The peritonitis bacterial spontaneous is an infection of the fluid ascetic that has high incidence in cirrhotic patients and is associated with a high mortality. In such situation, a diagnosis early is essential for the survival of the patient. However, the identification of the causative pathogen of infection is based currently on cultivation methods that are slow and laborious.

A research coordinated by the Group of Nanobiosensors and Bioanalytical applications of the CIBER-BBN, which coordinates Unit 4 of NANBIOSIS led by Laura Lechuga, has presented the development of a biosensor interferometric based in guides bimodal (BiMW), capable of identify and quantify E. coli in liquid ascetic reaching some limits of detection below them 100 cfu /mL in only 15 min of analysis. These results demonstrate the great capacity of the biosensor BiMW as a new tool in the field clinical for the analysis microbial due to its ease use and its good relationship of cost-effectiveness and speed in the microbiological analysis.

Article of Reference:  Label-free bimodal waveguide immunosensor for rapid diagnosis of bacterial infections in cirrhotic patients. Jesús Maldonado, Ana Belén González-Guerrero, Carlos Domínguez, Laura M.Lechuga. Biosensors and Bioelectronics.

Nanotechnology bio applications in the clinical diagnosis II biosensor BiMW for the early diagnosis of bacterial infections in cirrhotic patients
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Nanotechnology bio applications in the clinical diagnosis: nanoplasmodic biosensor device for the early diagnosis of colorectal cancer

The group of Nano-biosensors and Bioanalytical applications of CIBER-BBN which coordinates Unit 4 of NANBIOSIS directed by Dr. Laura Lechuga, has led the final preparations of a technology with potential application in the early diagnosis of colorectal cancer, based in the detection of specific biomarkers in blood.
The nanoplasmonic biosensor based on LSPR (Localized Surface Plasmon Resonance) is generated on structured surfaces of nano discs of gold, that allow monitoring of biological interactions in real time and without the need of markers.
The nanoplasmonic biosensor allows analysis of human samples in a few minutes, without requiring reagents or additional instrumentation. The device is easy to use and its reduced dimensions offer an attractive opportunity for the development of point-of-care devices with potential to be used outside the laboratory.

Article of Reference:  Label-free nanoplasmonic sensing of tumor-associate autoantibodies for early diagnosis of colorectal cancer.Maria Soler, M. Carmen Estevez, Roi Villar-Vázquez, J. Ignacio Casal, Laura M. Lechuga. Analytica Chimica Acta. http://dx.doi.org/10.1016/j.aca.2016.04.059

Nanotechnology bio applications in the clinical diagnosis nanoplasmodic biosensor device for the early diagnosis of colorectal cancer
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