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Discrimination of hemoglobins with subtle differences using an aptamer based sensing array.

Min Lin1, Wenshan Li, Yaning Wang

  • 1State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China. kmwang@hnu.edu.cn yangxiaohai@hnu.edu.cn.

Chemical Communications (Cambridge, England)
|April 17, 2015
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Summary

This study developed an aptamer-based sensing array capable of distinguishing subtle differences in hemoglobins. The array successfully differentiated human hemoglobins from those of other species using linear discriminant analysis.

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Area of Science:

  • Biochemistry
  • Analytical Chemistry
  • Biomolecular Engineering

Background:

  • Hemoglobin analysis is crucial for diagnosing various medical conditions.
  • Distinguishing between human and non-human hemoglobins is important for forensic and clinical applications.
  • Existing methods for hemoglobin discrimination can be complex or time-consuming.

Purpose of the Study:

  • To develop a novel aptamer-based sensing array for discriminating subtle hemoglobin differences.
  • To evaluate the array's ability to differentiate human hemoglobins from those of other species.
  • To demonstrate the potential of aptasensors in hemoglobin analysis.

Main Methods:

  • Fabrication of an aptamer-based sensing array.
  • Utilizing specific aptamers selected for hemoglobin binding.
  • Employing linear discriminant analysis (LDA) for data interpretation.
  • Testing the array with human and non-human hemoglobin samples.

Main Results:

  • The aptamer-based sensing array demonstrated high sensitivity in detecting hemoglobins.
  • Linear discriminant analysis confirmed the array's capability to discriminate between human and non-human hemoglobins.
  • Subtle variations in hemoglobin structures were effectively identified by the sensing array.

Conclusions:

  • Aptamer-based sensing arrays offer a promising platform for precise hemoglobin discrimination.
  • This technology can reliably differentiate human hemoglobins from those of different species.
  • The developed method provides a foundation for advanced hemoglobin characterization in various fields.