Abstract: Nitric oxide-releasing materials, methods of making nitric oxide-releasing materials, and uses of nitric oxide-releasing materials are provided. The nitric oxide-releasing materials include a mesoporous silica core and an outer surface having a plurality of nitric oxide donors. In an exemplary aspects, the nitric oxide-releasing material includes a mesoporous diatomaceous earth core, and an outer surface having a plurality of S-nitroso-N-acetyl-penicillamine groups covalently attached thereto. Uses of the nitric oxide-releasing materials can include coatings for medical devices such as catheters, grafts, and stents; wound gauzes; acne medications; and antiseptic mouthwashes; among others.

Abstract: A social network application system stores profile information of one or more types of objects, such as users, places, events, things, organizations and other types of objects. The system maintains current information for the various types of objects. The current information is updated periodically. The system generates a dataset for generating density reports for one or more types of objects based on search criteria. The dataset includes current information for one or more types of objects. The dataset is transmitted to a user device. The user device displays a graphical representation of density of objects in a geographical area.