Biocompatible nanoparticles with enhanced photocatalytic and anti-microfouling potential

Harinee, Subramanian; Muthukumar, Kaliappan; Dahms, Hans-Uwe; Koperuncholan, M.; Vignesh, S.; Banu, Rajesh; Ashok, Mahalingam; James, Rathinam Arthur

doi:10.1016/j.ibiod.2019.104790

Cited by 18 publications

(4 citation statements)

References 50 publications

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“…The seaweed samples were hand-picked and washed thoroughly in filtered seawater, tap water and distilled water to clean up adhering epiphytes, debris, and other impurities. Seaweed thalli with distinct morphology were transported immediately in separate polyethylene bags to the laboratory and shade dried for 3–5 days at room temperature ( Harinee et al, 2019 ). The dried seaweed was then ground to fine powder with electric blender and stored in air tight container for further use.…”

Section: Methodsmentioning

confidence: 99%

“…Aqueous seaweed extract was made by adding 50 g of dried seaweed powder to 400 ml distilled water and heated to boiling until it was reduced to half its original volume. Once it cooled, the extract was filtered using Whatman grade 42 filter paper (Whatman, GE Healthcare, UK) and stored at 4°C for further studies ( Harinee et al, 2019 ; Bhuyar et al, 2020 ).…”

Section: Methodsmentioning

confidence: 99%

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Structural characterization, antioxidant and anti-uropathogenic potential of biogenic silver nanoparticles using brown seaweed Turbinaria ornata

Raj,

Muthukumar,

Dahms

et al. 2023

Front. Microbiol.

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Alternative treatment strategies for urinary tract infections (UTIs) are becoming more necessary due to increasing drug resistance patterns in uropathogens. Nanoparticle-based therapeutics is emerging as a way to treat UTIs. In the present study, using Turbinaria ornata extract, silver nanoparticles (AgNPs) were synthesized, characterized, and their anti-uropathogenic activity was evaluated. The stability and formation of synthesized To-AgNPs were confirmed by UV-visible spectroscopy, FTIR, XRD, SEM, and DLS. An FTIR spectrum confirmed the presence of seaweed functional groups in To-AgNPs, a XRD analysis confirmed their crystalline nature, and SEM imaging confirmed their spherical nature with an average size of 73.98 nm with diameters ranging from 64.67 to 81.28 nm. This was confirmed by TEM results. DLS determined that the cumulant hydrodynamic diameter of To-AgNPs was 128.3 nm with a PdI of 0.313 and the zeta potential value were found to be –63.3 mV which indicates the To-AgNPs are negatively charged and more stable. DPPH assays were used to assess the antioxidant activity of biosynthesized To-AgNPs, while an agar well diffusion method was used to test the antibacterial activity against uropathogens, including Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Enterococcus faecalis, and Klebsiella pneumoniae. The To-AgNPs showed the highest susceptibility to S. aureus (15.75 ± 0.35 mm) and E. coli (15 ± 0.7 mm) with MIC values of 0.0625 and 0.125 mg/ml, respectively in macro broth dilution method and observed considerable membrane damage under CLSM and SEM. To-AgNPs displayed stronger antioxidant and antimicrobial activity, suggesting they may be developed as a new class of antimicrobial agents for treating UTIs.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Structural characterization, antioxidant and anti-uropathogenic potential of biogenic silver nanoparticles using brown seaweed Turbinaria ornata

Raj,

Muthukumar,

Dahms

et al. 2023

Front. Microbiol.

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“…As sunscreen agents, small sized zinc oxide particles have a significant attenuating effect on ultraviolet B (UVB) radiation, as UVB rays are scattered, absorbed and reflected, enabling them to act as a physical barrier to protect the stratum corneum of the skin [6]. ZnO NPs are highly valued biological nanomaterials due to their non-toxicity, biocompatibility, photocatalytic activity, high stability, and biodegradability [7,8]. Moreover, zinc oxide can overcome pathogenic bacteria that have antibiotics-resistance, and it has fewer side effects compared to organic sunscreens [9,10].…”

Section: Introductionmentioning

confidence: 99%

Novel Green Synthesis of UV-Sunscreen ZnO Nanoparticles Using Solanum Lycopersicum Fruit Extract and Evaluation of Their Antibacterial and Anticancer Activity

Elbrolesy,

Abdou,

Elhussiny

et al. 2023

J Inorg Organomet Polym

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This work aimed at the green synthesis of multifunctional zinc oxide nanoparticles (ZnO NPs) using Solanum Lycopersicum (SL) fruit juice to act as antibacterial/cancer/UV sunscreens. The obtained ZnO NPs were examined for optical properties, cytotoxicity of human lung fibroblast (WI-38) and hepatocellular carcinoma (HePG2) cell lines, and antibacterial activity against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus. The antioxidant activity and in vitro sun protection factor (SPF) of the synthesized nanoparticles were carried out by spectrophotometric methods. The formation of pure phase structure and characteristic functional group of the synthesized ZnO NPs were confirmed by XRD, FTIR, and UV–Vis diffuse reflectance analysis. SEM image showed that the ZnO NPs have a quasi-spherical shape with a size of about 39 ± 12 nm. ZnO NPs showed high potency as sunscreens (in vitro SPF = 16.8) and as mild antioxidant agents. Notably, ZnO NPs enhanced the cytotoxic activity against hepatocellular carcinoma cells and confirmed their antibacterial activity against pathogenic bacteria. SL fruit juice can play a triple role by acting as a solvent, reducing agent and stabilizer which facilitates the synthesis of ZnO NPs sunscreen that has antibacterial and anti-carcinogenic properties.

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“…12,13 Particularly organic dyes such as methylene blue (MB), methyl orange (MO), azorubine/Acid Red 14 (AC-14), malachite green (MG), Remazol Brilliant Blue R/Reactive Blue 19, and Remazol Red (RR) provide the main source of environmental pollution. [14][15][16][17] Conventional biological treatments of dye-containing industrial wastewaters are unsuccessful and oen result in an intensively colored discharge from industrial plants. The extensive use of several non-biodegradable organic dye manufacturing industries has increasingly become a source of groundwater pollution.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic dye degradation and photoexcited anti-microbial activities of green zinc oxide nanoparticles synthesizedvia Sargassum muticumextracts

2022

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Biocompatible nanoparticles with enhanced photocatalytic and anti-microfouling potential

Cited by 18 publications

References 50 publications

Structural characterization, antioxidant and anti-uropathogenic potential of biogenic silver nanoparticles using brown seaweed Turbinaria ornata

Structural characterization, antioxidant and anti-uropathogenic potential of biogenic silver nanoparticles using brown seaweed Turbinaria ornata

Novel Green Synthesis of UV-Sunscreen ZnO Nanoparticles Using Solanum Lycopersicum Fruit Extract and Evaluation of Their Antibacterial and Anticancer Activity

Photocatalytic dye degradation and photoexcited anti-microbial activities of green zinc oxide nanoparticles synthesizedvia Sargassum muticumextracts

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