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Ubiquitous sensors: when will they be here?

David R Walt1

  • 1Department of Chemistry, Tufts University, Medford, Massachusetts 02155, USA. david.walt@tufts.edu

ACS Nano
|October 28, 2009
PubMed
Summary
This summary is machine-generated.

Label-free chemical and biological sensors offer simple, reagent-free continuous measurements. Advancements in this technology promise wider sensor application and societal transformation in monitoring health and environments.

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Area of Science:

  • Chemical and biological sensor technology.
  • Transduction methods for molecular recognition.

Background:

  • Continuous measurements require reliable chemical and biological sensors.
  • Traditional sensors often use extrinsic labels, necessitating exogenous reagents.
  • Label-free methods simplify sensor implementation by eliminating the need for external reagents.

Purpose of the Study:

  • To highlight the advantages and potential of label-free transduction methods in sensor technology.
  • To address challenges hindering the widespread adoption of advanced sensors.
  • To emphasize the need for interdisciplinary collaboration in sensor development.

Main Methods:

  • Review of label-free transduction principles in chemical and biological sensing.
  • Discussion of challenges including reproducibility, calibration, and manufacturability.
  • Exploration of interdisciplinary approaches involving chemists, biologists, and engineers.

Main Results:

  • Label-free sensing eliminates the need for exogenous reagents, simplifying sensor design and use.
  • New transduction methods are crucial for expanding sensor applications.
  • Addressing technical challenges is key to realizing the full potential of sensor technology.

Conclusions:

  • Label-free sensor advancements are critical for broader societal impact.
  • Interdisciplinary collaboration is essential to overcome current sensor development hurdles.
  • Inexpensive, widely deployable sensors will revolutionize healthcare and environmental monitoring.