Abstract: Described herein are methods for controlling the release of nitric oxide from a nitric oxide releasing material. The method involves exposing the nitric oxide releasing material to light having a discrete wavelength, wherein the nitric oxide releasing material comprises a (i) a polysiloxane network and (ii) a plurality of nitric oxide-donating moieties covalently bonded to the polysiloxane network. The tunability of nitric oxide release from the nitric oxide releasing materials described herein provides unique therapeutic profiles that correspond to endogenous thresholds of nitric oxide for desired physiological response. The methods described herein can prevent bacterial growth as well as the formation of biofilms and fibrinogen on articles such as, for example, medical devices.

Abstract: Described herein are coating compositions having unique mechanical and physical properties. The coating compositions are composed of zinc oxide nanoparticles, copper nanoparticles, a perfluorolkylsiloxane, and an organic solvent. The coating compositions can be applied to any article or any surface of an article where it is desirable to reduce surface wettability or prevent the growth of bacteria.

Abstract: Described herein are compositions comprising a nitric oxide releasing material comprising a (i) a polysiloxane network and (ii) a plurality of nitric oxide-donating moieties covalently bonded to the polysiloxane network; and (b) a silicone oil. Also described herein are articles composed of the compositions described herein and methods for using the same. The compositions described herein provide highly sustained, long-term nitric oxide release that have numerous biological activities such as, for example, preventing localized platelet activation, fibrinogen adhesion, and biofilm formation for a prolonged period of time.

Abstract: Described herein are substrates, devices, methods for treating and preventing bacterial and fungal infections, such as infections associated with medical devices, and the like. Materials, substrates and devices of the present disclosure include materials, such as medical grade polymers, having a coating/layer of polyene antimycotic molecules coupled to a surface of the polymer substrate. In certain aspects, substrates and devices of the present disclosure also include a nitric oxide (NO) releasing material also embedded in/coated on the material. Methods of the present disclosure includes methods of making the compositions and/or devices of the present disclosure including materials functionalized with polyene antimycotic molecules and NO releasing materials. Embodiments also include methods of using the materials, substrates, and devices of the present disclosure to treat/prevent fungal and/or bacterial infections in a subject, particularly infections associated with the use of a medical device.

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: Described herein are biocompatible materials that include a nitric oxide (NO) donor embedded in silk fibroin nanoparticles. In one aspect, the nitric oxide donor is present in the hydrophobic core of the silk fibroin nanoparticles such that the nitric oxide donor is encapsulated. The biocompatible materials described herein serve as a biocompatible and inexpensive nitric oxide delivery platform that provide sustained release of nitric oxide. The biocompatible materials are non-toxic and can be used in biomedical applications such as wound healing, where a combination of therapeutic and antibacterial properties of silk and nitric oxide are desired. Additionally, described herein are methods of making the biocompatible materials.

Abstract: Coating compositions, coated articles including the coating compositions, and methods of making the coating compositions and coated articles are provided. In some aspects, the coating compositions are applied to a substrate having nitric oxide-releasing properties. The coating compositions can include copolymers having crosslinking agents that can be activated with mild UV light (about 345 nm to 365 nm) to avoid damaging the substrate while creating strong covalent bonds to the substrate. The copolymers can include hydrophilic repeat units, and in particular zwitterionic repeat units such as repeat units containing phosphorylcholine groups. In some aspects, the coating compositions are applied to a surface of a polymer substrate, wherein the polymer substrate had nitric oxide releasing properties. The coating compositions and the coated articles can have antifouling, antithrombotic, and/or antibacterial properties.

Abstract: Coating compositions, coated articles including the coating compositions, and methods of making the coating compositions and coated articles are provided. In some aspects, the coating compositions are applied to a substrate having nitric oxide-releasing properties. The coating compositions can include copolymers having crosslinking agents that can be activated with mild UV light (about 345 nm to 365 nm) to avoid damaging the substrate while creating strong covalent bonds to the substrate. The copolymers can include hydrophilic repeat units, and in particular zwitterionic repeat units such as repeat units containing phosphorylcholine groups. In some aspects, the coating compositions are applied to a surface of a polymer substrate, wherein the polymer substrate had nitric oxide releasing properties. The coating compositions and the coated articles can have antifouling, antithrombotic, and/or antibacterial properties.

Abstract: Wound dressings and methods for treating a wound are provided. The wound dressing can have an environment-facing side that includes a biocompatible material having a polymer crosslinked with an antimicrobial effective amount of a NO-donor and a woundfacing side including a biocompatible resinous matrix and an antifibrinolytic agent. The wound dressing can promote fibrin formation and rapid platelet aggregation, and has antimicrobial properties. The dressing can be applied directly to the wound.

Abstract: The present disclosure provides for modified antibiotic compounds, methods of making modified antibiotic compounds, methods of use, products including modified antibiotic compounds, and the like. The modified antibiotic compound comprises a nitric oxide release agent covalently attached to an antibiotic molecule, such as S-nitroso-N-acetylpenicillamine covalently attached to ampicillin.

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: Embodiments of the present disclosure provide for treated articles of tubing having anti-fouling characteristics, methods of making treated articles of tubing, and the like. Disclosed herein are treated articles of tubing impregnated with a silicone oil and a nitric oxide release agent. Also described are methods for preparing a treated article of tubing and methods for delivering a pharmaceutically acceptable fluid to a subject in need thereof, wherein the fluid is transferred from a fluid source through treated articles of tubing to the subject.

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: Described herein are nitric oxide releasing materials, methods of making nitric oxide releasing materials, and devices including nitric oxide releasing materials. The nitric oxide releasing material includes a polymer matrix having a plurality of polysiloxanes and nitric oxide-donating crosslinking moieties that covalently crosslink the polysiloxanes. Blood clotting or adhesion of a bio-material to a surface, as well as biofilm formation can be prevented using the methods and materials described.

Abstract: A polymeric film includes a polymer matrix having at least one of a discrete RSNO adduct or a polymeric RSNO adduct associated therewith, by: covalent attachment to the polymer matrix; dispersion within the polymer matrix; or both, with the at least one of the discrete RSNO adduct or the polymeric RSNO adduct capable of releasing nitric oxide (NO). The polymer matrix is a polyurethane polymer matrix, a silicone rubber polymer matrix, or a copolymer matrix of polyurethane and silicone rubber. The polymeric film is to exhibit stability under dry conditions at 37° C. and prolonged and controllable NO release rates, when exposed to moisture or light capable of photolyzing an RSNO bond, for a predetermined amount of time from the at least one of the discrete RSNO adduct or the polymeric RSNO adduct.

Abstract: A variety of nitric oxide-releasing vascular grafts and prostheses are provided. Methods of making the nitric oxide-releasing vascular grafts and prostheses are also provided. Methods of administering the nitric oxide-releasing vascular grafts and prostheses to a subject in need thereof are also provided. The nitric oxide-releasing vascular grafts and prostheses have a base layer made of a graft material and a nitric oxide-releasing layer made from a polymer matrix including a plurality of polysiloxanes and a plurality of nitric oxide-donating crosslinking moieties covalently crosslinking polysiloxanes in the plurality of polysiloxanes. In some aspects, the vascular grafts and prostheses can provide for reduced infection rates and increased patency by providing for prolonged local delivery of nitric oxide when implanted in a vessel of a subject in need thereof.

Abstract: Coating compositions, coated articles including the coating compositions, and methods of making the coating compositions and coated articles are provided. In some aspects, the coating compositions are applied to a substrate having nitric oxide-releasing properties. The coating compositions can include copolymers having crosslinking agents that can be activated with mild UV light (about 345 nm to 365 nm) to avoid damaging the substrate while creating strong covalent bonds to the substrate. The copolymers can include hydrophilic repeat units, and in particular zwitterionic repeat units such as repeat units containing phosphorylcholine groups. In some aspects, the coating compositions are applied to a surface of a polymer substrate, wherein the polymer substrate had nitric oxide releasing properties. The coating compositions and the coated articles can have antifouling, antithrombotic, and/or antibacterial properties.

Abstract: The present disclosure provides for modified antibiotic compounds, methods of making modified antibiotic compounds, methods of use, products including modified antibiotic compounds, and the like. The modified antibiotic compound comprises a nitric oxide release agent covalently attached to an antibiotic molecule, such as S-nitroso-N-acetylpenicillamine covalently attached to ampicillin.

Abstract: Biodegradable composite membranes with antimicrobial properties consisting of nanocellulose fibrils, chitosan, and S-Nitroso-N-acetylpenicillamine (SNAP) were developed and tested for food packaging applications. Nitric oxide donor, SNAP was encapsulated into completely dispersed chitosan in 100 mL, 0.1N acetic acid and was thoroughly mixed with nanocellulose fibrils (CNF) to produce a composite membrane. The fabricated membranes had a uniform dispersion of chitosan and SNAP within the nanocellulose fibrils, which was confirmed through Scanning Electron Microscopy (SEM) micrographs and chemiluminescence nitric oxide analyzer. The membranes prepared without SNAP showed lower water vapor permeability than that of the membranes with SNAP. The addition of SNAP resulted in a decrease in the Young's modulus for both 2-layer and 3-layer membrane configurations.

Abstract: Embodiments of the present disclosure provide for treated articles of tubing having anti-fouling characteristics, methods of making treated articles of tubing, and the like. Disclosed herein are treated articles of tubing impregnated with a silicone oil and a nitric oxide release agent. Also described are methods for preparing a treated article of tubing and methods for delivering a pharmaceutically acceptable fluid to a subject in need thereof, wherein the fluid is transferred from a fluid source through treated articles of tubing to the subject.