Heavy Metal Ions Detection Using Nanomaterials-Based Aptasensors.

Area of Science:

• Environmental Science
• Analytical Chemistry
• Biotechnology

Background:

• Heavy metal ions pose significant risks to aquatic ecosystems and human health.
• Conventional detection methods have limitations, necessitating improved real-time monitoring techniques.
• Aptamer-based sensors offer superior sensitivity, specificity, and stability compared to traditional methods.

Purpose of the Study:

• To review nanomaterial-based aptasensors for heavy metal detection.
• To highlight recent advancements in aptamer-nanomaterial conjugation and signal transduction.
• To discuss the progress and future applications of these sensors in food safety and environmental monitoring.

Main Methods:

• Review of scientific literature from 2010-2022 on aptasensors and nanomaterials.
• Analysis of aptamer-nanomaterial interactions for metal ion binding.
• Evaluation of signal transduction mechanisms in aptasensing platforms.

Main Results:

• Nucleic acid aptamers conjugated with nanomaterials demonstrate high specificity and selectivity for metal ions.
• Nanomaterials enhance signal transduction, improving sensor performance.
• Significant progress has been made in developing nanomaterial-based aptasensors for various heavy metals.

Conclusions:

• Nanomaterial-based aptasensors are a promising technology for sensitive, real-time detection of hazardous heavy metals.
• These sensors offer advantages for on-site monitoring in environmental and food safety applications.
• Further research is needed to optimize sensor design and facilitate practical implementation.