Chitin (a polymer of N-acetylglucosamine) is one of the most abundant natural polymers on earth and can be found in crustacean shells, fungi, and insects. Chitosan (a polymer of glucosamine) is produced commercially for a wide variety of applications. Our group has focused on the use of these waste materials as a sustainable path to functional materials for environmental remediation applications. We believe the combination of sourced waste materials and more energy efficient ball milling techniques will provide a low-cost option for water purification. Here we present the development and modification of chitosan for the photosensitization of singlet oxygen. Our use of ball milling techniques for more sustainable chemical modification will be discussed, as well as the results showing the generation of singlet oxygen.

Preparation of chitosan films for the photosensitization of singlet oxygen

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