Development and characterization of antibody reagents for detecting nanoparticles

Area of Science:

• Nanotechnology
• Biotechnology
• Environmental Health and Safety

Background:

• Widespread use of nanoparticles (NPs) in technology and products raises environmental and safety concerns.
• Current analytical methods face limitations in detecting NPs in environmental and biological matrices.
• Accurate detection is crucial for understanding NP behavior and potential risks.

Purpose of the Study:

• To develop and characterize novel antibodies for specific nanoparticle detection.
• To demonstrate the utility of these antibodies, termed NProbes, for identifying NPs.
• To establish a foundation for advanced NP detection tools in research.

Main Methods:

• Utilized phage display methodology to discover and generate NP-binding antibodies.
• Developed NProbes capable of binding to NPs dispersed in solution.
• Validated NProbe detection of quantum dots and titanium dioxide NPs in vitro and ex vivo.

Main Results:

• Successfully generated and characterized NProbes with specific NP-binding capabilities.
• Demonstrated proof-of-concept for NProbe application in detecting specific NPs.
• Showcased NProbe effectiveness in an ex vivo human skin model.

Conclusions:

• NProbes represent a novel and powerful tool for nanoparticle detection.
• This technology can address limitations of existing analytical techniques.
• Further development of NProbes will significantly advance nanotechnology, particularly in nanotoxicology and nanotherapeutics.