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Posts Taged nanoplasmodic-biosensors

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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