A new cyclic N-halamine biocidal polymer

Sun, Gang; Wheatley, W. B.; Worley, S. D.

doi:10.1021/ie00025a022

Cited by 102 publications

(95 citation statements)

References 2 publications

(3 reference statements)

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“…Worley et al have developed a class of antimicrobial polymers by using N-halamine groups attached to various polymeric backbones [58,59]. The design of these N-halamines allows the long-term storage of active chlorine.…”

Section: Biocide-releasing Polymersmentioning

confidence: 99%

Antimicrobial Polymers in Solution and on Surfaces: Overview and Functional Principles

2012

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Abstract:The control of microbial infections is a very important issue in modern society. In general there are two ways to stop microbes from infecting humans or deteriorating materials-disinfection and antimicrobial surfaces. The first is usually realized by disinfectants, which are a considerable environmental pollution problem and also support the development of resistant microbial strains. Antimicrobial surfaces are usually designed by impregnation of materials with biocides that are released into the surroundings whereupon microbes are killed. Antimicrobial polymers are the up and coming new class of disinfectants, which can be used even as an alternative to antibiotics in some cases. Interestingly, antimicrobial polymers can be tethered to surfaces without losing their biological activity, which enables the design of surfaces that kill microbes without releasing biocides. The present review considers the working mechanisms of antimicrobial polymers and of contact-active antimicrobial surfaces based on examples of recent research as well as on multifunctional antimicrobial materials.

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Section: Biocide-releasing Polymersmentioning

confidence: 99%

Antimicrobial Polymers in Solution and on Surfaces: Overview and Functional Principles

2012

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“…Although polymeric phosphonium salts exhibit a bactericide properties both Gram-positive and Grma negative, polymers with sulfonium salts exhibited only a high antibacterial activity against Gram-positive bacteria and it was found that their activity increased with an increase in MW. Recently, novel N-halamines polymers have attracted considerable interest in the polymeric biocides area [46] . An N-halamine may be defined as a compound containing one or more nitrogen-halogen covalent bonds (Figure 12).…”

Section: Polymers For Agrochemicals Deliverymentioning

confidence: 99%

Polymer in Agriculture: a Review

Puoci¹,

Iemma²,

Spizzirri³

et al. 2008

American J. of Agricultural and Biological Sciences

254

115

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Abstract:In agricultural field, polymers are widely used for many applications. Although they were used, in the first time, just as structural materials (inhert polymers), in the last decades functionalized polymers revolutionized the agricultural and food industry with new tools for several applications. Smart polymeric materials and smart delivery systems helped the agricultural industry to combat viruses and other crop pathogens, functionalized polymers were used to increase the efficiency of pesticides and herbicides, allowing lower doses to be used and to indirectly protect the environment through filters or catalysts to reduce pollution and clean-up existing pollutants. This report will review the key aspects of used polymers in agricultural area, highlighting current research in this field and the future impacts they may have.

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“…It was observed that the filters inactivated numerous species of bacteria, fungi, and even rotavirus in only seconds of contact time in flowing water. [11][12][13][14][15] Also, it was observed that the columns did not leach out decomposition products into the water, 14 and that the free chlorine and bromine concentrations leached into the flowing water were less than 0.1 mg/L and less than 2.0 mg/L, respectively. Furthermore, once the halogen supply was exhausted through various loss processes, it could be replenished on the polymers by simply exposing them to flowing aqueous free halogen (e.g., sodium hypochlorite bleach for the chlorinated derivative).…”

Section: Introductionmentioning

confidence: 98%

“…These include cellulose, 5 , 6 nylon, 6 , 7 PET, 6 , 8 Kraton rubber, 9 various surface coatings, 10 and the N-halogenated poly(styrene) hydantoins. [11][12][13][14][15] The latter polymers are granular solids which are insoluble in water and which were packed into glass columns which functioned as a cartridge filters. It was observed that the filters inactivated numerous species of bacteria, fungi, and even rotavirus in only seconds of contact time in flowing water.…”

Section: Introductionmentioning

confidence: 99%

A novel N-halamine monomer for preparing biocidal polyurethane coatings

Worley

et al. 2003

Surface Coatings International Part B: Coatings Transactions

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SummariesA novel N-halamine monomer for preparing biocidal polyurethane coatings A novel N-halamine monomer has been prepared which can be copolymerized with a commercial waterborne acrylic polyol and a commercial isocyanate to produce a polyurethane coating which can be applied to a broad variety of surfaces. After curing, the coating can be chlorinated with a source of free chlorine, such as bleach, to render it biocidal. Once the coating loses its chlorine loading, and hence its biocidal activity, regeneration is possible by further exposure to free chlorine. In one experimental observation a coating on a wall has retained its biocidal activity for more than six months. The biocidal coating should have many applications, including in medical facilities, in food preparation areas, in prevention of biofouling in aqueous and humid environments, etc.

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A new cyclic N-halamine biocidal polymer

Cited by 102 publications

References 2 publications

Antimicrobial Polymers in Solution and on Surfaces: Overview and Functional Principles

Antimicrobial Polymers in Solution and on Surfaces: Overview and Functional Principles

Polymer in Agriculture: a Review

A novel N-halamine monomer for preparing biocidal polyurethane coatings

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