Oxidation: Exposure to oxygen can cause oxidation, leading to material breakdown. Photodegradation: UV light can break down the chemical bonds in nanomaterials. Hydrolysis: Water can react with nanomaterials, causing them to deteriorate. Thermal Degradation: High temperatures can lead to the thermal breakdown of nanomaterials. Chemical Reactions: Exposure to certain chemicals can result in the degradation of nanomaterials.