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Rapid Mix Preparation of Bioinspired Nanoscale Hydroxyapatite for Biomedical Applications

Rapid Mix Preparation of Bioinspired Nanoscale Hydroxyapatite for Biomedical Applications

Published on: February 23, 2017

Hydroxyapatite nanoarray-based cyanide biosensor.

Suiping Wang¹, Yong Lei, Yun Zhang

¹State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, People's Republic of China.

Analytical Biochemistry

|December 1, 2009

Summary

A novel hydroxyapatite nanowires array (HANWA) biosensor was developed for sensitive cyanide detection. This biosensor offers spatial resolution and rapid response, making it promising for environmental toxin monitoring.

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Area of Science:

Biomaterials Science
Nanotechnology
Electrochemistry

Background:

Development of sensitive and selective biosensors is crucial for environmental and food safety.
Hydroxyapatite nanowires offer a unique platform for biosensor fabrication due to their large surface area and biocompatibility.

Purpose of the Study:

To develop a novel hydroxyapatite nanowires array (HANWA) biosensor for cyanide detection.
To investigate the application of HANWA in electrochemical sensing of toxic substances.

Main Methods:

Fabrication of HANWA using template-assisted electrodeposition.
Construction of an electrochemical biosensor by immobilizing horseradish peroxidase (HRP) within chitosan (CHIT) on the HANWA platform.
Electrochemical determination of cyanide based on its inhibitory effect on HRP activity.

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Rapid Mix Preparation of Bioinspired Nanoscale Hydroxyapatite for Biomedical Applications

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Main Results:

Successfully fabricated well-aligned hydroxyapatite nanowires with controlled dimensions.
The CHIT-HRP/HANWA biosensor demonstrated a sensitive detection limit of 0.6 ng/mL for cyanide.
The biosensor exhibited high sensitivity, spatial resolution, rapid regeneration, and fast response.

Conclusions:

The developed HANWA biosensor provides an effective platform for sensitive and rapid cyanide detection.
This technology offers a promising alternative for the monitoring of toxic substances in environmental and food industries.
The biomolecular-friendly protocol and nanostructure enhance enzyme-substrate interaction and biosensor performance.