Preparation of chitosan coated zinc oxide nanocomposite for enhanced antibacterial and photocatalytic activity: As a bionanocomposite

Bharathi, Devaraj; Ranjithkumar, R.; Chandarshekar, B.; Bhuvaneshwari, V.

doi:10.1016/j.ijbiomac.2019.02.061

Cited by 160 publications

(44 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The potent antibacterial properties of ZnO/CuO nanocomposite may be attributed to the released metal ions, which could have interaction with bacteria by means of their attaching to the surface of the cell membranes of bacteria and penetrating into the bacterial cells. The authors [27][28][29][30] also had similar explanations by observing SEM images of bacteria before and after treatment with zinc and copper oxide.…”

Section: Introductionmentioning

confidence: 78%

Antibacterial Shoe Insole-Coated CuO-ZnO Nanocomposite Synthesized by the Sol-Gel Technique

Nguyen

Tri

et al. 2020

Journal of Nanomaterials

View full text Add to dashboard Cite

In this study, CuO-ZnO composite was synthesized via the sol-gel method using oxalic acid to form the medium complex and its applications in antibacterial have been conducted with B. cereus, E. coli, S. aureus, Salmonella, and P. aeruginosa. Then, nanopowder of CuO-ZnO was coated on shoe insoles and their antibacterial effect with S. aureus was tested. The nanocomposite products were characterized by XRD, XPS, SEM, TEM, and UV-Vis. The results showed that the CuO-ZnO composite has the average particle size in a range of 20-50 nm, the point of zero charge of 7.8, and the bandgap of 1.7 eV. XPS result shows the composite structure with Cu2+ in the product. The minimum inhibitory concentration (MIC) of CuO-ZnO nanocomposite was 0.313 mg·mL-1 for S. aureus and Samonella, 0.625 mg·mL-1 for E. coli, and 5 mg·mL-1 for B. cereus and P. aeruginosa. The shoe insoles coated with 0.35 wt.% of CuO-ZnO nanocomposite also had high antibacterial activity against S. aureus, and this antibacterial nanocomposite was implanted durably on the surface of the shoe insoles.

show abstract

Section: Introductionmentioning

confidence: 78%

Antibacterial Shoe Insole-Coated CuO-ZnO Nanocomposite Synthesized by the Sol-Gel Technique

Nguyen

Tri

et al. 2020

Journal of Nanomaterials

View full text Add to dashboard Cite

show abstract

“…In Table , characteristics of low pH of treated samples meant CS coating decreased fish albuminolysis. Chitosan coating barrier is approved for antimicrobial activity and suppresses bacterial growth again (Abdulkareem et al, ; Bharathi et al, ; Reesha et al, ). For 2CS, pH changes in coated samples increased markedly after 3 months, whereas for CN and 0.2 CGA/2CS the pH significantly increased after 2 and 4 months, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Macromolecules of protein, starch, modified starch, and polysaccharides have been applied in edible coating for preservation (Abdulkareem, Abdalsalam, & Bohan, 2019;Cardoso et al, 2019;Hassannejad et al, 2019). Chitosan (CS) coating is a nontoxic, attractive, and natural coating agent used in the food industry for inhibiting microorganism proliferation and lipid oxidization (Abdulkareem et al, 2019;Bharathi, Ranjithkumar, Chandarshekar, & Bhuvaneshwari, 2019;Reesha, Panda, Bindu, & Varghese, 2015). Use of additives in edible coating further enhances its activity in preservation by releasing antioxidants and antimicrobial substances (Ao et al, 2019;Cardoso et al, 2019).…”

mentioning

confidence: 99%

Effect of combined chlorogenic acid and chitosan coating on antioxidant, antimicrobial, and sensory properties of snakehead fish in cold storage

Cao

Islam

Chitrakar

et al. 2020

Food Science & Nutrition

View full text Add to dashboard Cite

Degradation of meat quality has always been a burning issue in fish preservation. To maintain the quality, a novel combination of chlorogenic acid (CGA) and chitosan (CS) coating was applied to snakehead fish fillets. Fish fillets were soaked into 2% chitosan (2CS), 0.2% CGA in 2% chitosan (0.2CGA/2CS), 0.5% CGA in 2% chitosan (0.5CGA/2CS), or 1.0% CGA in 2% chitosan (1.0CGA/2CS) solution; and then, coated samples were vacuum‐packaged and stored at 2 ± 0.5°C. pH values, color values, microbial loads, hardness, sensory qualities, and oxidization of lipids and proteins of stored fish fillets were investigated for 5 months. Antimicrobial activity was found to be nonsignificant (p ≤ .05) among different coated fish fillets, while color, antioxidant, and pH values were significantly (p ≤ .05) different. Lipid oxidation and protein oxidation were found to be inhibited in 2CS‐, 0.5CGA/2CS‐ and 1.0CGA/2CS‐coated fish fillet. All CGA/CS coating delayed increase in pH (p ≤ .05) and resulted brown color. However, only CS coating resulted in higher sensory scores (p ≤ .05) and controlled browning. Considering antioxidant properties and other quality parameters, CGA/CS coating might be applied commercially in fish preservation.

show abstract

“…Bharathi and colleagues prepared a chitosan‐coated zinc oxide (CS‐ZnO) nanocomposite with rutin. The antibacterial efficacy of the aforementioned nanocomposite was assessed against pathogenic Gram‐positive and Gram‐negative bacteria, where it has been shown that the nanocomposite was more effective against Gram‐negative bacteria (Bharathi, Ranjithkumar, Chandarshekar, & Bhuvaneshwari, 2019b). The structural and optical possessions of metal oxide nanoparticles display noteworthy changes while coated with organic polymers.…”

Section: Therapeutic Benefits Of Rutin and Its Nanoformulationsmentioning

confidence: 99%

Therapeutic benefits of rutin and its nanoformulations

Negahdari

Bohlouli

Sharifi

et al. 2020

Phytotherapy Research

153

View full text Add to dashboard Cite

Background Rutin as a natural flavonoid compound has revealed an extensive range of therapeutic potentials. Purpose The current paper is focused on the numerous studies on rutin nanoformulations regarding its broad spectrum of therapeutic potentials. Study and methods A review was conducted in electronic databases (PubMed) to identify relevant published literature in English. No restrictions on publication date were imposed. Results The literature search provided 7,078 results for rutin. Among them, 25 papers were related to the potential biological activities of rutin nanoformulations. Polymeric nanoparticles were the most studied nanoformulations for rutin (14 titles) and lipid nanoparticles (5 titles) were in second place. The reviewed literature showed that rutin has been used as an antimicrobial, antifungal, and anti‐allergic agent. Improving the bioavailability of rutin using novel drug‐delivery methods will help the investigators to use its useful effects in the treatment of various chronic human diseases. Conclusion It can be concluded that the preparation of rutin nanomaterials for the various therapeutic objects confirmed the enhanced aqueous solubility as well as enhanced efficacy compared to conventional delivery of rutin. However, more investigations should be conducted to confirm the improved bioavailability of the rutin nanoformulations.

show abstract

Preparation of chitosan coated zinc oxide nanocomposite for enhanced antibacterial and photocatalytic activity: As a bionanocomposite

Cited by 160 publications

References 54 publications

Antibacterial Shoe Insole-Coated CuO-ZnO Nanocomposite Synthesized by the Sol-Gel Technique

Antibacterial Shoe Insole-Coated CuO-ZnO Nanocomposite Synthesized by the Sol-Gel Technique

Effect of combined chlorogenic acid and chitosan coating on antioxidant, antimicrobial, and sensory properties of snakehead fish in cold storage

Therapeutic benefits of rutin and its nanoformulations

Contact Info

Product

Resources

About