Hydroxy Double-Walled Carbon Nanotubes (DWNTs-OH) are widely used in advanced material applications due to their unique structural and functional properties. Their hydroxyl functionalization enhances dispersion in various solvents, making them ideal for use in polymer composites to improve mechanical strength, thermal conductivity, and electrical properties.

In the field of electronics, DWNTs-OH are incorporated into conductive inks and flexible electronics, providing enhanced performance in devices such as sensors and transistors. Their high surface area and conductivity also make them suitable for energy storage applications, including supercapacitors and lithium-ion batteries, where they improve charge storage and transfer efficiency.

In biomedical applications, DWNTs-OH are explored for drug delivery systems due to their ability to carry and release therapeutic agents in a controlled manner. Their functionalization allows for better biocompatibility and targeting of specific cells or tissues. Additionally, they are used in biosensors for detecting biomolecules with high sensitivity.

In environmental applications, DWNTs-OH are employed in water purification systems to adsorb pollutants and heavy metals, thanks to their high surface area and functional groups that enhance binding efficiency. They are also used in catalytic processes to degrade organic contaminants in wastewater.

Overall, DWNTs-OH play a critical role in advancing technology across multiple industries, offering improved performance and innovative solutions.