Related Experiment Video
Updated: May 25, 2026

11:55
Membrane Transport Processes Analyzed by a Highly Parallel Nanopore Chip System at Single Protein Resolution
Published on: August 16, 2016
pH gated glucose responsive biomimetic single nanochannels.
Zhongyue Sun1, Cuiping Han, Long Wen
1Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry. Central China Normal University, Wuhan, 430079, P. R. China.
Summary
We developed a pH-gated glucose biosensor using a biomimetic nanochannel. This innovative device responds to glucose levels, with its function controlled by pH, offering new possibilities for health monitoring.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Analytical Chemistry
Background:
- pH-gated biosensors are crucial for health diagnostics.
- Existing glucose biosensors face challenges in selectivity and control.
- Biomimetic nanochannels offer novel platforms for molecular detection.
Purpose of the Study:
- To design and develop a novel pH-gated glucose biosensor.
- To investigate the pH-regulated response of a biomimetic nanochannel to glucose.
- To create a switchable nanochannel system for glucose detection.
Main Methods:
- Fabrication of a biomimetic nanochannel.
- Modification of the nanochannel with 3-aminobenzeneboronic acid.
- Characterization of the nanochannel's response to varying pH and glucose concentrations.
Main Results:
- The nanochannel exhibited pH-gated glucose responsiveness.
- The device could be switched between 'on' and 'off' states by adjusting pH.
- 3-aminobenzeneboronic acid facilitated glucose recognition within the nanochannel.
Conclusions:
- A functional pH-gated glucose biosensor was successfully developed.
- The pH-responsive nanochannel provides a controllable platform for glucose sensing.
- This approach holds promise for advanced diagnostic tools in human health.
Related Concept Videos
G-Protein Gated Ion Channels
GPCRs are primarily responsible for our sense of smell, taste, and vision. The binding of a sensory stimulus activates GPCR to stimulate effector proteins, many of which are ion channels in the sensory organs. GPCRs modulate the opening and closing of the target ion channels either directly by binding them, or by releasing second messengers that activate these channels. As ions move across the membrane, the membrane potential is altered, which induces an appropriate response.
Sensory organs,...
Sensory organs,...
Glucose Absorption Into the Small Intestine
Complex carbohydrates consumed cannot be absorbed into the small intestine in their original form. First, they must be hydrolyzed to a monosaccharide form such as glucose or galactose. These monosaccharides are then transported across the intestinal membrane and into the blood via transcellular transport. The intestinal epithelial cells allow the movement of these monosaccharides with a defined 'entry' through membrane transporter proteins present on their apical membrane and 'exit' via the...

