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Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver
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Autonomous Chemical Sensing Interface for Universal Cell Phone Readout.

Germán Comina1, Anke Suska1, Daniel Filippini2

  • 1Optical Devices Laboratory, IFM, Linköping University, 58183 Linköping (Sweden).

Angewandte Chemie (International Ed. in English)
|June 23, 2015
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Summary

We developed a disposable device for quantitative chemical sensing using smartphones. This universal design integrates all necessary components for autonomous operation and accurate glucose measurement via video acquisition.

Keywords:
3D printed fluidicsanalytical methodsautonomous lab-on-a-chipcell phone readoutsensors

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Area of Science:

  • Biomedical Engineering
  • Analytical Chemistry
  • Mobile Health

Background:

  • Cell phone ubiquity presents opportunities for portable chemical sensing.
  • Interfacing devices must be autonomous, disposable, and universally compatible.
  • Existing solutions often lack integration of calibration and actuation elements.

Purpose of the Study:

  • To demonstrate a universally adaptable, disposable device for quantitative chemical sensing using smartphones.
  • To implement this concept as a smartphone-based quantitative glucose meter.
  • To ensure the device operates with standard cell phone configurations.

Main Methods:

  • Designed a disposable device integrating finger pumps, unidirectional valves, calibration references, and focusing optics.
  • Configured the device for universal video acquisition using standard smartphone cameras.
  • Validated the device for quantitative glucose measurement.

Main Results:

  • Successfully implemented a quantitative glucose meter on a disposable, universally compatible device.
  • Demonstrated autonomous operation integrating all necessary sensing components.
  • Achieved quantitative glucose measurements through smartphone video acquisition.

Conclusions:

  • This work presents a novel, integrated disposable device for smartphone-based chemical sensing.
  • The universal design enables broad cell phone compatibility and autonomous operation.
  • This approach holds potential for accessible and quantitative point-of-care diagnostics.