Assessment of antibacterial cellulose nanocomposites for water permeability and salt rejection

Khan, Sher Bahadar; Alamry, Khalid A.; Bifari, Elham N.; Asiri, Abdullah M.; Yasir, Muhammad; Gzara, Lassâad; Ahmad, Rehan Zulfiqar

doi:10.1016/j.jiec.2014.09.040

Cited by 105 publications

(37 citation statements)

References 45 publications

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“…The peak at 1726 cm -1 is attributed to the C=O stretching vibrations of the ester carbonyl of PCL 10 000 [57][58][59]. And the broad absorption band at 2916 cm -1 belongs to the cellulose [60][61][62][63][64]. Therefore, the spectra confirmed the deposition of the silica particles and the PCL 10 000 composite film on the surfaces of wood for well-produced superhydrophobic surfaces as expected.…”

Section: Sample Preparationmentioning

confidence: 53%

Facile transformation of superhydrophobicity to hydrophilicity by silica/poly(ɛ-caprolactone) composite film

Gao

Zhai

Wang

2015

Applied Surface Science

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Section: Sample Preparationmentioning

confidence: 53%

Facile transformation of superhydrophobicity to hydrophilicity by silica/poly(ɛ-caprolactone) composite film

Gao

Zhai

Wang

2015

Applied Surface Science

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“…4,5 Studies found that the bactericidal activity of metal species is related with its valence form 5 and researchers have shown that the higher valence state is the stronger and more active the antimicrobial action. 6,7 The MONPs including silver, titanium, bismuth and zinc oxide nanoparticles have been exhibited antimicrobial effects against Gram-positive and -negative bacteria. [8][9][10][11] These materials are able to control bacterial growth.…”

Section: Introductionmentioning

confidence: 99%

<p>Antibacterial Activity of a Novel Biocomposite Chitosan/Graphite Based on Zinc-Grafted Mesoporous Silica Nanoparticles</p>

Jamshidi¹,

Sazegar²

2020

IJN

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Introduction: A novel biocomposite chitosan/graphite based on zinc-grafted mesoporous silica nanoparticles (CGZM-bio) was synthesized and the antibacterial activities of this compound along with that of Zn-MSN nanoparticles were investigated. Methods: The CGZM-bio biocomposite was synthesized using sol-gel and post-synthesis method under UV radiation. The characterizations of the samples were carried out using FTIR, XRD, SEM, and nitrogen adsorption and desorption. The antibacterial activity was carried out against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) after 18 h at 310 K. Results: The suspension samples of the Zn-MSN and CGZM-bio (2-100 µg.mL −1 ) presented antibacterial activities against S. aureus and E. coli. The minimum inhibitory concentration (MIC) values against E. coli for the Zn-MSN and CGZM-bio samples were 10 and 5 µg.mL −1 , respectively, while the MIC against S. aureus for both nanomaterials was 10 µg.mL −1 . Discussion: The antibacterial activities of these materials are due to the generation of radical oxygen species such as • OH, H 2 O 2 , and O 2 2during the UV radiation via the generation of the electron-hole pairs which in turn damage the bacteria cells. These nanomaterials may be used in biomedical devices as antibacterial agents.

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“…Nanostructured materials exhibit unparalleled aptitudes as adsorbents for the extraction and separation of metal ions [18][19][20][21][22]. In addition, nanomaterials have particular shapes, are small in size, have extraordinary surface activity and also a high active surface-to-volume ratio, which generate and enhance different properties [23][24][25][26]. It is well-known that nanosized-materials are used perfectly in many applications; however, adsorption applications still require reformation of such nanomaterials to enhance its properties.…”

Section: Introductionmentioning

confidence: 99%

Removal of hexavalent chromium from aqueous solutions using Ni–SiO$$_{2}$$ nanomaterials

et al. 2019

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This study describes an effective method developed for the removal of hexavalent chromium, Cr(VI), from an aqueous environment. In this study, the Ni-SiO 2 nanomaterial was synthesized by the sol-gel method and then characterized by field emission scanning electron microscopy, X-ray diffraction and energy dispersive X-ray spectroscopy. The prepared nanomaterial was then employed as an adsorbent with significant properties of high surface area and uptake capacity. Adsorption conditions of Cr(VI) onto the Ni-SiO 2 nanomaterial were optimized by altering different parameters (pH, initial Cr(VI) concentration and different periods of time). An amount of 100.75 mg g −1 was estimated as the maximum uptake capacity of the Ni-SiO 2 nanomaterial at pH 4.0. The experimental data of Cr(VI) adsorption onto the Ni-SiO 2 nanomaterial were fitted well to the Langmuir isotherm and pseudo second-order kinetic models. Moreover, the adsorption of Cr(VI) onto the Ni-SiO 2 nanomaterial was not influenced even in the presence of different coexisting ions. Finally, the recommended methodology was applied on several environmental water samples.

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Assessment of antibacterial cellulose nanocomposites for water permeability and salt rejection

Cited by 105 publications

References 45 publications

Facile transformation of superhydrophobicity to hydrophilicity by silica/poly(ɛ-caprolactone) composite film

Facile transformation of superhydrophobicity to hydrophilicity by silica/poly(ɛ-caprolactone) composite film

<p>Antibacterial Activity of a Novel Biocomposite Chitosan/Graphite Based on Zinc-Grafted Mesoporous Silica Nanoparticles</p>

Removal of hexavalent chromium from aqueous solutions using Ni–SiO$$_{2}$$ nanomaterials

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