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Hollow Microneedle-based Sensor for Multiplexed Transdermal Electrochemical Sensing
Published on: June 1, 2012
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Small-Scale Biological and Artificial Multidimensional Sensors for 3D Sensing.
Kriti Agarwal1, Sehyun Hwang1, Aaron Bartnik1
1Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN, 55455, USA.
Small (Weinheim an Der Bergstrasse, Germany)
|August 1, 2018
Summary
This review explores 1D, 2D, and 3D nano/microscale sensors for 3D spatial sensing. 3D polyhedral sensors offer superior capabilities for diverse applications, including biosensing and 3D imaging.
Area of Science:
- Nanotechnology
- Sensor Technology
- Materials Science
Background:
- Conventional sub-millimeter sensors are typically 2D (planar), limiting their ability to measure 3D quantities.
- Existing 2D sensor geometries restrict comprehensive spatial measurements.
Purpose of the Study:
- To review nano/microscale sensors with 1D, 2D, and 3D configurations.
- To analyze the advantages and limitations of different sensor geometries for 3D spatial sensing.
- To highlight the potential of 3D polyhedral sensors.
Main Methods:
- Categorization of sensors based on geometric configuration (1D, 2D, 3D) and sensing capabilities.
- Comparative analysis of sensor geometries and their impact on sensing mechanisms.
- Exploration of natural 3D biosensors for design inspiration.
Main Results:
- 3D configuration sensors, particularly those on polyhedral structures, excel at sensing spatially distributed 3D quantities.
- Nano/microscale vertex configurations in polyhedral structures enable full 3D spatial sensing via orthogonally aligned elements.
- Cubic 3D sensors show promise in biosensing, optical metamaterials, 3D imaging, and microbot applications.
Conclusions:
- 3D sensors, especially polyhedral designs, offer significant advantages over traditional 2D sensors for comprehensive 3D spatial sensing.
- The geometry of 3D sensors is crucial for enhancing sensing mechanisms and enabling novel applications.
- Inspiration from natural 3D biosensors can guide the development of next-generation 3D sensors.
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