Design and validation of cost-effective aptasensor for the detection of H. pylori as gastric cancer biomarker
Summary
Here, we have proposed aptamer based electrochemical sensing platform for gut bacteria detection (H. pylori) which have important implications in gastric cancer. The detection of H. pylori is not yet focused as tool for diagnosis of these diseases. This aptamer based electrochemical detection technique is fast, sensitive and cost effective as compared to conventional techniques and antibodies-based biosensors. Moreover, present proposed method is non-invasive, cost effective, easy and fast for the detection of bacteria. So far, gut bacterium has not been used as biomarkers for the diagnosis of diseases. Moreover, their detection will be based on novel aptamer-based approach. This is the first proposal which aim the development of aptamer-based biosensor for gut bacteria detection. Also, the developed diagnostic sensing interface would allow H. pylori (gastric cancer) detection in early stage that would be a great contribution in clinical laboratories.
Objectives
1. Screening and selection of aptamers for gut microbiota-derived bacterium H. pylori.
2. Characterization and determination of specificity and sensitivity of selected aptamers against H. pylori.
3. Fabrication and optimization of aptamer based electrochemical nano-biosensing platforms towards the detection of H.pylori onto conducting substrate.
4. Validation of aptasensor for detection of gut derived bacterium H. pylori in real patient samples (saliva, stool and serum).
5. Design of prototype for the electrochemical aptasensor device for H. pylori as biomarkers.



