Aptamer based switches: A futuristic approach for Helicobacter pylori detection

•H. pylori is a human gut bacterium causing gastric and ulcer cancer.•To overcome traditional techniques, biosensors arise as innovative method for H. pylori detection.•Aptamer emerged as promising probes for specific bacterial detection.•Aptamer switches used to fabricate point of care based biosensing devices.•Highlighting the future potential of aptamer as promising probe for H. pylori detection.