Assessment and characterization of antifungal and antialgal performances for biocide‐enhanced linear low‐density polyethylene

Gitchaiwat, Atthapong; Kositchaiyong, Apisit; Sombatsompop, Kwannate; Prapagdee, Benjaphorn; Isarangkura, Khokhwan; Sombatsompop, Narongrit

doi:10.1002/app.37675

Cited by 15 publications

(17 citation statements)

References 28 publications

(34 reference statements)

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“…Amphiphilic copolymer of P(DMAEMA- co -MMA) are partially soluble in water, PDMAEMA is water soluble and PMMA is water insoluble due to hydrophilic and hydrophobic nature [ 41 ]. Antibacterial action was tested by disk diffusion method (DD) and zone of inhibitions were measured against both type of bacteria [ 42 ]. Bacterial bond of E. coli and S. aureus on surface of polymers did not significantly depend upon the molecular weight of polymers, but it dependent on the elementary process of bactericidal action of polymers [ 12 ].…”

Section: Resultsmentioning

confidence: 99%

Antibacterial Amphiphilic Copolymers of Dimethylamino Ethyl Methacrylate and Methyl Methacrylate to Control Biofilm Adhesion for Antifouling Applications

et al. 2021

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Amphiphilic copolymers are recognized as important biomaterials and used as antibacterial agents due to their effective inhibition of bacterial growth. In current study, the amphiphilic copolymers of P(DMAEMA-co-MMA) were synthesized using free radical polymerization by varying the concentrations of hydrophilic monomer 2-dimethylamino ethylmethacrylate (DMAEMA) and hydrophobic monomer methyl methacrylate (MMA) having PDI value of 1.65–1.93. The DMAEMA monomer, through ternary amine with antibacterial property optimized copolymers, P(DMAEMA-co-MMA), compositions to control biofilm adhesion. Antibacterial activity of synthesized copolymers was elucidated against Gram-positive Staphylococcus aureus (ATCC 6538) and Gram-negative Escherchia coli (ATCC 8739) by disk diffusion method, and zones of inhibition were measured. The desired composition that was PDM1 copolymer had shown good zones of inhibition i.e., 19 ± 0.33 mm and 20 ± 0.33 mm for E. coli and S. aureus respectively. The PDM1 and PDM2 have exhibited significant control over bacterial biofilm adhesion as tested by six well plate method. SEM study of bacterial biofilm formation has illustrated that these copolymers act in a similar fashion like cationic biocide. These compositions viz. PDM1 and PDM2, may be useful in development of bioreactors, sensors, surgical equipment and drug delivery devices.

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Section: Resultsmentioning

confidence: 99%

Antibacterial Amphiphilic Copolymers of Dimethylamino Ethyl Methacrylate and Methyl Methacrylate to Control Biofilm Adhesion for Antifouling Applications

et al. 2021

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“…The test procedure for this method was modified from the quantitative method for determination of fungal growth as described by previous studies . A PVC or WPVC specimen with dimensions of 50 × 50 mm 2 was used as a test piece.…”

Section: Methodsmentioning

confidence: 99%

Antifungal properties and material characteristics of PVC and wood/PVC composites doped with carbamate-based fungicides

Kositchaiyong

Rosarpitak²,

Sombatsompop

2013

Polym Eng Sci

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Antifungal properties of polyvinylchloride (PVC) and wood/PVC composites (WPVC) were studied with two different fungicides through disk diffusion and dry weight techniques against Aspergillus niger as a testing fungus. Three different types of woods, including Xylia kerrii Craib & Hutch.(XK), Hevea brasiliensis Muell.(HB), and Mangifera indica Linn.(MI), were used. The disk diffusion results revealed that the addition of 3‐iodopropinyl‐N‐butylcarbamate (IPBC) in the PVC and WPVC markedly reduced the diameter of fungi, whereas the addition of methylbenzimidazole‐2‐ylcarbamate(Carbendazim) did not. The results from IPBC samples by the dry weight technique corresponded to those by the disk diffusion method. Adding fungicides tended to slightly increase the flexural properties of PVC, whereas in the case of WPVC those properties were deteriorated by IPBC and carbendazim additions. The total color change was less when IPBC only was introduced into PVC. FTIR spectra suggested that no chemical structure changes were observed after the addition of IPBC and carbendazim. The higher surface contact angle and fungicide release values for IPBC samples could imply greater diffusibility of IPBC in PVC and WPVC matrices, accompanied by increased antifungal activity. WPVC with HB wood showed the best antifungal performance, at an optimal concentration of 10,000 ppm, when compared with XK and MI woods. POLYM. ENG. SCI., 54:1248–1259, 2014. © 2013 Society of Plastics Engineers

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“…Certain organo-iodine compounds, e.g. iodopropynyl butylcarbamate [2] are effective, widely used antifungal agents.…”

Section: Introductionmentioning

confidence: 99%

Laccase Catalyzed Synthesis of Iodinated Phenolic Compounds with Antifungal Activity

et al. 2014

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Iodine is a well known antimicrobial compound. Laccase, an oxidoreductase which couples the one electron oxidation of diverse phenolic and non-phenolic substrates to the reduction of oxygen to water, is capable of oxidizing unreactive iodide to reactive iodine. We have shown previously that laccase-iodide treatment of spruce wood results in a wash-out resistant antimicrobial surface. In this study, we investigated whether phenolic compounds such as vanillin, which resembles sub-structures of softwood lignin, can be directly iodinated by reacting with laccase and iodide, resulting in compounds with antifungal activity. HPLC-MS analysis showed that vanillin was converted to iodovanillin by laccase catalysis at an excess of potassium iodide. No conversion of vanillin occurred in the absence of enzyme. The addition of redox mediators in catalytic concentrations increased the rate of iodide oxidation ten-fold and the yield of iodovanillin by 50%. Iodinated phenolic products were also detected when o-vanillin, ethyl vanillin, acetovanillone and methyl vanillate were incubated with laccase and iodide. At an increased educt concentration of 0.1 M an almost one to one molar ratio of iodide to vanillin could be used without compromising conversion rate, and the insoluble iodovanillin product could be recovered by simple centrifugation. The novel enzymatic synthesis procedure fulfills key criteria of green chemistry. Biocatalytically produced iodovanillin and iodo-ethyl vanillin had significant growth inhibitory effects on several wood degrading fungal species. For Trametes versicolor, a species causing white rot of wood, almost complete growth inhibition and a partial biocidal effect was observed on agar plates. Enzymatic tests indicated that the iodinated compounds acted as enzyme responsive, antimicrobial materials.

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Assessment and characterization of antifungal and antialgal performances for biocide‐enhanced linear low‐density polyethylene

Cited by 15 publications

References 28 publications

Antibacterial Amphiphilic Copolymers of Dimethylamino Ethyl Methacrylate and Methyl Methacrylate to Control Biofilm Adhesion for Antifouling Applications

Antibacterial Amphiphilic Copolymers of Dimethylamino Ethyl Methacrylate and Methyl Methacrylate to Control Biofilm Adhesion for Antifouling Applications

Antifungal properties and material characteristics of PVC and wood/PVC composites doped with carbamate-based fungicides

Laccase Catalyzed Synthesis of Iodinated Phenolic Compounds with Antifungal Activity

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