Nanocapsules embedded in natural rubber latex gloves

Tanpantree, Saovaree; Opaprakasit, Pakorn; Loykulnant, Surapich; Tangboriboonrat, Pramuan

doi:10.1002/app.32132

Cited by 4 publications

(2 citation statements)

References 124 publications

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“…Increasing the amount and weight average molecular weight ( ) of PMA, the encapsulation efficiency of the disinfectant agent was significantly increased. 4 After the redispersion of nanocapsules ( of PMA = 550 K) into 0.5% w/v sodium dodecyl sulphate (SDS) aqueous solution, the maximum remaining amount of CHD in the capsules with an average size of 386 ± 18 nm was found to be as high as 93%. The incorporation of CHD-PMA nanoWith the aim to increase the compatibility between disinfectant nanocapsules and sulphur-prevulcanised natural rubber (SPNR) latex film generally used for preparing the gloves, the sulphur-prevulcanised skim (SPVS) particles were applied as the CHD-PMA nanocapsule's shell in the present study.…”

Section: Introductionmentioning

confidence: 99%

“…The liquid-filled capsules dispersed in an aqueous medium can be easily prepared and simply incorporated into rubber films via a sequential dipping process. 3,4 Recently, the well-defined nanocapsules containing disinfectant agent possessing wide spectrum of activity against Gram-positive and Gram-negative bacteria, i.e., chlorhexidine digluconate (CHD) salt, have been prepared employing the controlled nanoprecipitation of poly(methyl acrylate) (PMA) onto the inverse miniemulsion droplets of CHD aqueous solution. [4][5][6] The deposition of PMA from the organic phase onto the CHD nanodroplets was achieved by evaporating off the solvent (dichloromethane) from the mixture of solvent/non-solvent (dichloromethane/cyclohexane).…”

Section: Introductionmentioning

confidence: 99%

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Preparation of core-shell particle of disinfectant agent nanocapsules-skim rubber particles by the heterocoagulation technique

et al. 2010

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Sulphur-prevulcanised skim (SPVS) rubber particles were heterocoagulated on an aggregate of a disinfectant agent (chlorhexidine digluconate; CHD)-poly(methyl acrylate) (PMA) nanocapsules. The CHD-PMA nanocapsule stabilized by lecithin was prepared using the modified nanoprecipitation of PMA from an organic continuous phase onto nanodroplet containing the CHD aqueous solution. Cationic and anionic nanocapsules were produced by separately redispersing the nanocapsules into a water and 0.5% sodium dodecyl sulphate (SDS) aqueous solution, respectively. The largest aggregate, which was obtained from homocoagulation of the CHD-PMA nanocapsules with opposite charges, was selected as a core surrounded with SPVS shell particles. An interpolymer complex between poly(ethylene oxide) (PEO) moieties adsorbed on the aggregate and indigenous surfactant (protein-lipid) and/or SDS on the SPVS particle surface was the driving force for heterocoagulation. Data from the size, zeta potential measurements and TEM images of the heterocoagulated CHD-PMA/SPVS indicated the composite particle containing the CHD-PMA core.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation of core-shell particle of disinfectant agent nanocapsules-skim rubber particles by the heterocoagulation technique

et al. 2010

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Immobilization of fluorescein isothiocyanate on magnetic polymeric nanoparticle using chitosan as spacer

Kaewsaneha

Opaprakasit

Polpanich

et al. 2012

Journal of Colloid and Interface Science

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Effects of post-gamma irradiation on swelling and mechanical properties of gamma vulcanized natural rubber latex (GVNRL) films

Wicha

Intharaprasit

Wimolmala

et al. 2020

IOP Conf. Ser.: Mater. Sci. Eng.

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Gamma vulcanized natural rubber latex (GVNRL) films have shown promising properties for various applications that require less hazardous chemicals used or released during manufacturing and/or utilization. Examples of potential applications include the uses as chemical-free latex gloves in medical or food-related facilities and as stretchable latex covers for food and agricultural products. However, due to possible degradation on swelling and mechanical properties of these films from post-gamma irradiation used for sterilization, thorough investigations are required in order to fully understand their possible changes and/or degradations in properties of interest. As a result, this work investigated on effects of post-gamma irradiation on swelling and mechanical properties of natural rubber latex (NRL) films, which were pre-vulcanized using 12-kGy and 24-kGy gamma irradiation. The properties of interest in this work included tensile modulus at 300% elongation, tensile strength, and elongation at break, as well as other related physical properties such as swelling ratios and crosslink densities. The results showed that, for samples before post-gamma irradiation, the GVNRL films with 24-kGy vulcanizing dose had higher tensile modulus, tensile strength, and crosslink density, but lower elongation at break and swelling ratio, than the films with 12-kGy vulcanizing dose. However, after post-gamma irradiation at the accumulated dose of 24 kGy, the films with 12-kGy vulcanizing dose showed significant improvements in the values of tensile modulus, tensile strength, and crosslink density, whereas the films with 24-kGy vulcanizing dose showed noticeably degradation in these properties. Hence, the overall results suggested that, while higher gamma vulcanizing doses could initially produce NRL films with higher mechanical strength, they were more negatively affected by post-gamma irradiation such that mechanical degradation could be observed.

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Nanocapsules embedded in natural rubber latex gloves

Cited by 4 publications

References 124 publications

Preparation of core-shell particle of disinfectant agent nanocapsules-skim rubber particles by the heterocoagulation technique

Preparation of core-shell particle of disinfectant agent nanocapsules-skim rubber particles by the heterocoagulation technique

Immobilization of fluorescein isothiocyanate on magnetic polymeric nanoparticle using chitosan as spacer

Effects of post-gamma irradiation on swelling and mechanical properties of gamma vulcanized natural rubber latex (GVNRL) films

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