Notes

In The Current Cogitation , A Low-Cost And Aboveboard Coprecipitation Technique Was Adopted To Synthesise CaO And La-Doped CS/CaO NPs
Different weighting ratios ( 2 and 4 ) of La were doped into rigid amounts of CS and CaO . Synthesized samples exposed outstanding catalytic execution by degrading methylene blue ( MB ) in a extremely efficient mode . The X-ray diffraction technique detected the bearing of a cubic form of CaO and a step-down in crystallite size of the samples with the accession of La . Fourier transform infrared spectrometry confirmed the mien of the dopant and the base cloth with functional groupings at 712 cm ( -1 ) . A decrease in the engrossment intensity of doped CaO was observed with an increasing total of dopants La and CS accompanied by a blueshift leading to an increase in the band gap vim from 4 to 4 eV , as immortalized with an ultraviolet-visible spectrophotometer . The mien of dopants ( La and CS ) and the valuation of the elementary composition of Ca and O were sustained with the energy-dispersive spectroscopy technique .

In an acidulent medium , the catalytic activity against the MB dye was shrinked ( 93 % ) for 4 % La-doped CS/CaO . For La-doped CS/CaO , vast inhibition areas casted within 4-4 and 5-8 mm against Escherichia coli while 4-5 and 6-13 mm against staphylococci aureus ( S. aureus ) at the least and maximal engrossments , correspondingly . In silico molecular dockage works suggested these nanocomposites of chitosan as potential inhibitors against the enoyl-acyl carrier protein reductase ( FabI ) from S. aureus.Assessment of the antioxidant , antimicrobial and antibiofilm activities of all-important oils for potential covering of fighting chitosan cinemas in food preservation.In the food industry , the development of microbial biofilms is a serious problem that takes to the contamination and impairment of food merchandises .

To defeat that , our aim lies of searching for raw antimicrobial and non-toxic compounds ( essential oils EOs ) , which might be used solo or adsorbed on natural biopolymer films ( chitosan ) . In Seebio Antioxidants , the antioxidant activity of eight EOs was evaluated by DPPH radical-scavenging method while their antibacterial activity was determined by dissemination on agar and microdilution methods . Among all tested EOs , Eugenia caryophyllus , Cinnamomum zeylanicum Blume and Thymus satureioides Cosson showed high antioxidant activities at the concentration of 25 mg/mL , with several values of ( 86 % , 81 % , and 76 % ) , and stiff antibacterial action against Pseudomonas aeruginosa , Escherichia coli , Staphylococcus aureus , and Enterococcus hirae , with ( MIC ) valuates ≤ 4 µL/mL . At the concentration of 1 µL/mL , these EOs examined alone , showed values of antibiofilm-forming activity ranging from 79 to 99 % and from 44 to 94 % , when they are adsorbed onto chitosan film . These hopeful resolutions affirm that these three EOs have a good potentiality for an eventual coating in the food industry , as antimicrobic and antioxidant agents , or as combat-ready biodegradable food packaging , if combined with chitosan.Activated carbon-chitosan based adsorbent for the effective removal of the issuing contaminant diclofenac : Synthesis , characterization and phytotoxicity studies.The rise in pharmaceutical pollutants due to their unregulated venting in pharmaceutical wastewater has landed them as emerging contaminants that would gradually touch the aquatic ecosystem and human life .

The current field punctuates the adsorptive elimination of one such issuing pharmaceutical pollutant , i.e. , Diclofenac ( DIF ) , using a synthesized adsorbent vis . Selenium -chitosan beadings ( ACCB ) . The morphological and physicochemical properties of the disposed adsorbent , ACCB and its interaction with the DIF species were investigated . Process parameters influencing the adsorptive interactions between ACCB and DIF were optimised . DIF was efficiently adsorbed at optimised initial DIF pH of 6 and ACCB dosage of 1 mg/mL at an incubation temperature of 40 °C .

Freundlich isotherm model designated the best fit ( R ( 2 ) = 0 ) with the observational data to conclude that the adsorbent aerofoil is heterogenous , promoting multilayer adsorption . As limned from the Langmuir isotherm simulation , the maximum theoretic adsorption capacity was 99 mg/g .
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