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Development and Evaluation of an Expedited System for Creation of Single Walled Carbon Nanotube Platforms. | LitMetric

AI Article Synopsis

  • - Single-walled carbon nanotubes (SWNT) exhibit strong near-infrared fluorescence that enables sensitive detection of target analytes, even at the single molecule level, through changes in fluorescence properties.
  • - Current methods for immobilizing SWNT sensors on solid substrates face challenges like high costs and long fabrication times, with a recently reported 5-day process for improving sensor performance.
  • - The new method developed by the researchers reduces the immobilization time to just 2 days, enhances fluorescence intensity, and maintains good distribution of SWNTs, making it a more efficient option for creating effective sensing systems.

Article Abstract

Single-walled carbon nanotubes (SWNT) have a strong and stable near-infrared (nIR) fluorescence that can be used to selectively detect target analytes, even at the single molecule level, through changes in either their fluorescence intensity or emission peak wavelength. SWNTs have been employed as NIR optical sensors for detecting a variety of analytes. However, high costs, long fabrication times, and poor distributions limit the current methods for immobilizing SWNT sensors on solid substrates. Recently, our group reported a protocol for SWNT immobilization with high fluorescence yield, longevity, fluorescence distribution, and sensor response, unfortunately this process takes 5 days to complete. Herein we report an improved method to immobilize SWNT sensors that only takes 2 days and results in higher fluorescence intensity while maintaining a high level of SWNT distribution. We performed surface morphology and chemical composition tests on the original and new synthesis methods and compared the sensor response rates. The development of this new method of attaching SWNT sensors to a platform allows for creation of a sensing system in just 2 days without sacrificing the advantageous characteristics of the original, 5-day platforms.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11250639PMC
http://dx.doi.org/10.1007/s42823-024-00691-8DOI Listing

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