Biological activities of chitosan-salicylaldehyde schiff base assisted silver nanoparticles

Alharthi, Salman S.; Gomathi, T.; Joseph, Jayapal John; Rakshavi, J.; Florence, J. Annie Kamala; Sudha, P.N.; Rajakumar, Govindasamy; Thiruvengadam, Muthu

doi:10.1016/j.jksus.2022.102177

Cited by 27 publications

(9 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The disruption occurs due to the blocking of protein synthesis, which is essential for the growth and survival of bacteria. 38,39 Inhibitory of Minimum and Bacteriostatic/Fungicidal Concentration of Bioactive CS Schiff Bases toward Target Pathogenic Microbes. Table 2 and Figure 5 show that Schiff bases CSM3T, CSM4T, CSM3U, and CSM4U had MICs and MBCs against S. aureus of 0.58 and 0.19, 0.58 and 0.195, 0.78 and 0.39, and 0.78 and 0.39 mg/mL, respectively.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Synthesis of Schiff Bases Based on Chitosan and Heterocyclic Moiety: Evaluation of Antimicrobial Activity

Ali,

Sholkamy,

Alobaidi

et al. 2023

ACS Omega

View full text Add to dashboard Cite

Schiff bases of chitosan (CS) were prepared by reaction of four different heterocyclic compounds, namely, 1,3-dimethyl-2,4,6-trioxohexahydropyrimidine-5-carbaldehyde (M1), 3-acetyl-2 H -chromen-2-one (M2), 5-chloro-3-methyl-1-phenyl-1 H -pyrazole-4-carbaldehyde (M3), and 4-oxo-4 H -chromene-3-carbaldehyde (M4), with CS using thermal and ultrasound approaches. CS Schiff base formation was confirmed by using FT-IR, XRD, and TGA. Characteristic data show that amino groups in chitosan reacted with the functional group in the heterocyclic compound to form the Schiff base. CS Schiff bases show thermal stability more than pure CS. The antimicrobial activity of Schiff bases was tested against +ve Gram bacteria and −ve Gram bacteria. The result shows that Schiff bases prepared by temperature and ultrasound methods possess high antimicrobial activity against +ve Gram bacteria and −ve Gram bacteria; in comparison, Schiff bases produced by the ultrasound method have higher antimicrobial activity. The Schiff base (CSM4U), prepared by the ultrasound method by reaction of CS with 4-oxo-4 H -chromene-3-carbaldehyde, exhibited higher antimicrobial activity than Gentamicin as an antibacterial agent. The inhibition range caused by CSM4U was between 19 and 27 mm. Moreover, CSM4U also acted as an antifungal agent, causing an inhibition zone of 21 mm for both Candida albicans and Candida tropicalis , which was higher than that of Terbinafine.

show abstract

Section: ■ Results and Discussionmentioning

confidence: 99%

Synthesis of Schiff Bases Based on Chitosan and Heterocyclic Moiety: Evaluation of Antimicrobial Activity

Ali,

Sholkamy,

Alobaidi

et al. 2023

ACS Omega

View full text Add to dashboard Cite

show abstract

“…It was used to analyze the crystal structure and the degree of crystallinity. Pure CS had a broad peak at 2

= 19.8°, which refers to the semicrystalline phase of CS [ 18 ]. The diffraction peaks of Yb 2 O 3 were determined at 2θ = 20.5, 29.3, 34.1, 44.06, 49.1, 53.9, and 58.4°, which correspond to Miller’s indices (211), (222), (400), (622), (440), (611), and (622) [ 19 ].…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Bio-Based Film Comprising Metal Oxide Nanoparticles Loaded Chitosan for Wound Dressing Applications

et al. 2022

View full text Add to dashboard Cite

In the current work, chitosan (CS)–metal oxide nanohybrid (MONH) composites are prepared via combining CS with MONH made of vanadium oxide (V2O5), ytterbium trioxide (Yb2O3), and graphene oxide (GO) to generate promising wound dressing materials using the film-casting method. The developed nanohybrid@CS was examined using techniques such as Fourier-transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), scanning electron microscopy (SEM)/energy-dispersive X-ray spectroscopy (EDX), and thermogravimetric analysis (TGA). For Yb2O3@CS, the surface morphology was shown to be a rough and porous surface with pores that ranged in size from 3.0 to 5.0 µm. For CS with Yb2O3, Yb2O3/V2O5@CS, and Yb2O3/V2O5/GO@CS, the contact angles were 72.5°, 68.2°, and 46.5°, respectively. When the nanohybrid@CS was in its hydrophilic phase, which is good for absorbing moisture and drugs, there was a notable decrease in angles that tended to rise. Additionally, the inclusion of MONH allowed the cell viability to be confirmed with an IC50 of 1997.2 g/mL and the cell growth to reach 111.3% at a concentration of 7.9 g/mL.

show abstract

“…To obtain the concentrations of solution from 20 µg/mL to 120 µg/mL, 1, 2, 3, 4, and 6 mL from the 50 mL of stock solution were taken and built up to 10 mL in the test tubes using distilled water. One millilitre of 2,2,2-diphenyl-1-picrylhydrazyl (DPPH) with a normality of 0.001 N was added to three millilitres of solutions of various concentrations [45]. After this, it was placed in a dark room nearly for 30min & absorbance was measured using a spectrophoto colorimeter (420 nm), using DPPH as control.…”

Section: Dpph Scavenging Activitymentioning

confidence: 99%

Green synthesis of copper oxide nanoparticles using Spinacia oleracea leaf extract and evaluation of biological applications: Antioxidant, antibacterial, larvicidal and biosafety assay

Gomathi

Arthi

Pazhanisamy

et al. 2023

Materials Today Communications

View full text Add to dashboard Cite

Biological activities of chitosan-salicylaldehyde schiff base assisted silver nanoparticles

Cited by 27 publications

References 41 publications

Synthesis of Schiff Bases Based on Chitosan and Heterocyclic Moiety: Evaluation of Antimicrobial Activity

Synthesis of Schiff Bases Based on Chitosan and Heterocyclic Moiety: Evaluation of Antimicrobial Activity

Fabrication of Bio-Based Film Comprising Metal Oxide Nanoparticles Loaded Chitosan for Wound Dressing Applications

Green synthesis of copper oxide nanoparticles using Spinacia oleracea leaf extract and evaluation of biological applications: Antioxidant, antibacterial, larvicidal and biosafety assay

Contact Info

Product

Resources

About