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Vibration electrospinning of Polyamide-66/Multiwall Carbon Nanotube Nanocomposite: introducing electrically conductive, ultraviolet blocking and antibacterial properties

Zohoori S., Latifi M., Davodiroknabadi A., Mirjalili M.

Polish Journal of Chemical Technology

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2017

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Vol. 19, nr 3

56--60

EN

Fabrication of electro-conductive fiber is a novel process. Nanocomposites of multiwall carbon nanotube/polyamide66 were produced by electrospinning with different amounts of multiwall carbon nanotube. Field emission scanning electron microscope and Fourier transform infrared spectroscopy of samples proved the existence of multiwall carbon nanotube distribution in polyamide 66 nanofibers. Results showed that electro conductivity of electrospun multiwall carbon nanotube/polyamide 66 nano fiber has increased in comparison with electrospun polyamide 66. Moreover, UV blocking of samples was investigated which has shown that using multiwall carbon nanotube in polyamide 66 increases UV blocking of fibers. Furthermore, anti-bacterial activity of nanocomposite showed that these nanocomposites have antibacterial property against both Staphylococcus Aureus and Escherichia Coli bacteria according to AATCC test method.

2

Synthesis and in vitro antimicrobial evaluation of amine substituted s-triazine based thiazolidinone/chalcone hybrids

Shah D. R., Lakum H. P., Chikhalia K. H.

International Letters of Chemistry, Physics and Astronomy

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2014

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Vol. 17, iss. 2

207--219

EN

In an attempt to control multidrug resistant dilemma, a library of s-triazine based on two novel series of thiazolidinone (4a-e) and chalcone (7a-e) derivatives were designed and synthesized with simple and efficient etiquette. The newly synthesized compounds were studied for efficacy against several bacteria (Staphylococcus Aureus, Bacillus Cereus, Pseudomonas Aeruginosa, Klebsiella Pneumoniae,) and fungi (Candida Albicans, Aspergillus Clavatus) using the broth dilution technique. Compound 7d was the best bioactive desired antibacterial analogue with less MIC value against different tested strains. Results of bioassay study revealed the future hope of the potent drug-candidate based on s-triazine scaffold. All the final synthesized compounds were characterized by IR, 1 H NMR, 13 C NMR, mass and elemental analysis.

3

Extraction, Physico-Chemical Characterization and Antimicrobial Screening of the Muscle Lipid of Cuttle Fish (Sepia esculenta) of the Bay of Bengal

Al-Amin M., Uddin M. H, Afrin A., Nath K. B., Barua S.

International Letters of Chemistry, Physics and Astronomy

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2014

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Vol. 17, iss. 1

87--97

EN

Lipid was extracted from the muscle of Cuttle fish by solvent extraction method and then purified by suitable conventional method. Various physical constants e.g. refractive index, viscosity, specific gravity, crude fat, crude fibre and ash contents and chemical parameters e.g. saponification value, saponification equivalent value, acid value, iodine value, acetyl value, peroxide value, thiocyanogen value, Reichert-Meissl value, Polenske value, Henher value, cholesterol content etc. of the lipid sample have been determined and compared with those of different standard oils. Fatty acids composition of the sample was investigated by Thin Layer Chromatography (TLC) method. The muscle lipid of Cuttle fish was found to contain palmitic acid, stearic acid, linolenic acid and erucic acid respectively with some other unknown fatty acids. Antimicrobial activities of the lipid were tested by standard method and found moderate to potential antibiotic and antifungal property in this lipid. The lipid containing muscle of Cuttle fish was analyzed quantitatively for the determination of percentages of protein and minerals (N, P, K, Ca) contents by modified Kjeldahl method.