Copper sulfate-embedded and copper oxide-embedded filter paper and their antimicrobial properties

Cano, Angelica P.; Gillado, Armida V.; Montecillo, Andrew D.; Herrera, Marvin U.

doi:10.1016/j.matchemphys.2017.12.049

Cited by 26 publications

(13 citation statements)

References 34 publications

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“…Table 12 summarizes the antibacterial properties of various metal salts/nanoparticles and antibiotics against representative gram positive (Escherichia coli) and gram negative (Staphylococcus aureus) bacteria. Some recent papers have described similar results [81][82][83][84].…”

Section: Antibacterial Activitysupporting

confidence: 66%

Vapor Phosphorylation of Cellulose by Phosphorus Trichlo-Ride: Selective Phosphorylation of 6-Hydroxyl Function—The Synthesis of New Antimicrobial Cellulose 6-Phosphate(III)-Copper Complexes

2021

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This research is focused on a synthesis of copper-cellulose phosphates antimicrobial complexes. Vapor-phase phosphorylations of cellulose were achieved by exposing microcrystalline cellulose to phosphorus trichloride (PCl3) vapors. The cellulose-O-dichlorophosphines (Cell-O-PCl2) formed were hydrolyzed to cellulose-O-hydrogenphosphate (P(III)) (Cell-O-P(O)(H)(OH)), which, in turn, were converted into corresponding copper(II) complexes (Cell-O-P(O)(H)(OH)∙Cu2+). The analysis of the complexes Cell-O-P(O)(H)(OH)∙Cu2+ covered: scanning electron microscopy (SEM), attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR), atomic absorption spectrometry with flame excitation (FAAS), and bioactivity tests against representative Gram-negative bacteria (Escherichia coli) and Gram-positive bacteria (Staphylococcus aureus). The antimicrobial tests of synthesized Cell-O-P(O)(H)(OH)∙Cu2+ revealed their potential applications as an antibacterial material.

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Section: Antibacterial Activitysupporting

confidence: 66%

Vapor Phosphorylation of Cellulose by Phosphorus Trichlo-Ride: Selective Phosphorylation of 6-Hydroxyl Function—The Synthesis of New Antimicrobial Cellulose 6-Phosphate(III)-Copper Complexes

2021

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“…Copper, being a micronutrient, is essential for life of humans and animals and is required in minute concentrations for functioning of several metalloenzymes [10][11][12]. It also possesses fungicidal, molluscicidal and weedicidal activities and is employed for control of bacterial and fungal diseases of fruits, vegetables, nuts and field crops, algae in domestic lakes and ponds and in gardening as powder and spray [13,14]. In India, copper also enters in human body through drinking water, and inhalation of copper dust and fumes [15].…”

Section: Introductionmentioning

confidence: 99%

In vitro and in vivo effects of flubendiamide and copper on cyto-genotoxicity, oxidative stress and spleen histology of rats and its modulation by resveratrol, catechin, curcumin and α-tocopherol

Mandil¹,

Prakash

Rahal

et al. 2020

BMC Pharmacol Toxicol

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Background: Living organisms are frequently exposed to more than one xenobiotic at a time either by ingestion of contaminated food/fodder or due to household practices, occupational hazards or through environment. These xenobiotics interact individually or in combination with biological systems and act as carcinogen or produce other toxic effects including reproductive and degenerative diseases. Present study was aimed to investigate the cyto-genotoxic effects of flubendiamide and copper and ameliorative potential of certain natural phyotconstituent antioxidants. Method: In vitro cytogenotoxic effects were evaluated by employing battery of assays including Propidium iodide staining, Tunel assay, Micronuclei, DNA fragmentation and Comet assay on isolated splenocytes and their prevention by resveratrol (5 and 10 μM), catechin (10 and 20 μM), curcumin (5 and 10 μM) and α-tocopherol (5, 10 and 20 μM). In vivo study was also undertaken daily oral administration of flubendiamide (200 mg/kg) or copper (33 mg/kg) and both these in combination, and also all these concurrently with of α-tocopherol to Wistar rats for 90 days. Results: Flubendiamide and copper produced concentration-dependent cytotoxic effects on splenocytes and at median lethal concentrations, flubendiamide (40 μM) and copper (40 μM) respectively produced 71 and 81% nonviable cells, higher number of Tunel+ve apoptotic cells, 7.86 and 9.16% micronucleus and 22.90 and 29.59 comets/100 cells and DNA fragmentation. In vivo study revealed significant (P < 0.05) increase in level of lipid peroxidation (LPO) and decrease in glutathione peroxidase (GPx), glutathione-S-transferase (GST) and superoxide dismutase (SOD) activities in groups exposed to flubendiamide or copper alone or both these in combination. Histopathological examination of rat spleens revealed depletion of lymphoid tissue, separation of splenocytes and rarification in splenic parenchyma of xenobiotic(s) treated groups.

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“…Potassium humate was added to the suspension (pH adjusted to 4.5) at varying concentrations, which suddenly shifted the pH to alkaline pH. Copper can be converted to copper hydroxide in the alkaline medium, then to copper oxide in the presence of oxygen . Humic substances are excellent complex forming materials through the two typical sorption sites such of phenolic hydroxyl (OH − ) and carboxyl (COO − ) groups .…”

Section: Resultsmentioning

confidence: 99%

“…Most of the literature reports about polymer films that have been activated by copper nanoparticles . There are only a few examples of modified cellulose‐based packaging material …”

Section: Introductionmentioning

confidence: 99%

Antimicrobial activity of copper‐humate‐cellulose sheets

2020

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During our research, cellulose‐based test sheets containing copper and potassium humate were prepared and tested against several bacterial and fungal strains. The energy dispersive X‐ray spectrometry and attenuated total reflectance (ATR) Fourier‐transform infrared spectroscopy revealed that humate contributed to increase the copper content of the test sheets. The antimicrobial impact of test sheets on various fungi (Penicillium expansum, Wallemia sebi, and Aspergillus brasiliensis) and bacteria (genera Micrococcus, Enterococcus, Bacillus, Salmonella, Staphylococcus, Listeria genera) was tested using a modified agar diffusion‐based assay. On the basis of the disc diffusion results, the sheets effectively inhibited all the tested fungi and Gram‐positive bacteria. The highest antimicrobial effect was exhibited by the copper‐containing test sheet with 1:0.1 and 1:0.25 cellulose:humate weight ratio. Deterioration test with blackberries demonstrated the shelf life extending effect of the sheets.

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Copper sulfate-embedded and copper oxide-embedded filter paper and their antimicrobial properties

Cited by 26 publications

References 34 publications

Vapor Phosphorylation of Cellulose by Phosphorus Trichlo-Ride: Selective Phosphorylation of 6-Hydroxyl Function—The Synthesis of New Antimicrobial Cellulose 6-Phosphate(III)-Copper Complexes

Vapor Phosphorylation of Cellulose by Phosphorus Trichlo-Ride: Selective Phosphorylation of 6-Hydroxyl Function—The Synthesis of New Antimicrobial Cellulose 6-Phosphate(III)-Copper Complexes

In vitro and in vivo effects of flubendiamide and copper on cyto-genotoxicity, oxidative stress and spleen histology of rats and its modulation by resveratrol, catechin, curcumin and α-tocopherol

Antimicrobial activity of copper‐humate‐cellulose sheets

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