Cytotoxicity assay of biosynthesis gold nanoparticles mediated by walnut (Juglans regia) green husk extract

Izadiyan, Zahra; Shameli, Kamyar; Hara, Hirofumi; Taib, Siti Husnaa Mohd

doi:10.1016/j.molstruc.2017.09.039

Cited by 60 publications

(27 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…9 displays the microscopic images of normal and sampletreated HCT116 and CCD112 cells for comparison. In the absence of any compound, both cells are in healthy conditions, and are neatly connected with a high concentration of cells in the cell lines [45]. At the concentration of 31.25 mg/mL, pomegranate-treated HCT116 and CCD112 cells show no obvious changes in their structures and morphologies, as the cells remain attached to the wells.…”

Section: Cytotoxicity and Anticancer Effects Of P Granatum/zno-npsmentioning

confidence: 99%

Cytotoxicity and antibacterial activities of plant-mediated synthesized zinc oxide (ZnO) nanoparticles using Punica granatum (pomegranate) fruit peels extract

Sukri

Shameli

Wong

et al. 2019

Journal of Molecular Structure

Self Cite

179

View full text Add to dashboard Cite

The unique properties of zinc oxide nanoparticles (ZnO-NPs) produced using plant extract make them attractive for use in medical as well as industrial applications, and it is necessary to develop environmentally friendly methods for their synthesis. This can be accomplished by replacing the traditional chemical compounds for the reduction of the zinc ions to ZnO-NPs during synthesis with natural plant extracts. Here, the biosynthesis of ZnO-NPs using Punica granatum (P. granatum) fruit peels extract was investigated as the reducing and stabilizing agent. The P. granatum/ZnO-NPs with spherical and hexagonal shapes were biosynthesized at different annealing temperatures. The X-ray diffraction analysis confirmed the synthesis of highly pure ZnO-NPs with increasing crystallinity in higher annealing temperatures. The ZnO-NPs displayed characteristic absorption peaks between 370 and 378 nm in the UV evis spectra. Transmission electron microscopy (TEM) imaging showed the formation of mostly spherical and hexagonal-shaped ZnO-NPs in the mean size of 32.98 nm and 81.84 nm at 600 C and 700 C respectively. According to FTIR spectrum, strong absorption bands in the range of 462e487 cm À1 corresponding to ZneO bond stretching can be seen. Antibacterial activities of P. granatum/ZnO-NPs against Escherichia coli (E. coli) and Enterococcus faecalis (E. faecalis) were investigated and compared. Results obtained show that smaller-sized P. granatum/ZnO-NPs are more effective in inhibiting growth of both bacteria. In addition, cytotoxicity assays were performed for P. granatum/ZnO-NPs against human colon normal and cancerous cells. P. granatum/ZnO-NPs exhibited similar killing activities of both cell lines at the concentration of !31.25 mg/mL. The biosynthesized ZnO-NPs could offer potential applications in biomedical field.

show abstract

Section: Cytotoxicity and Anticancer Effects Of P Granatum/zno-npsmentioning

confidence: 99%

Cytotoxicity and antibacterial activities of plant-mediated synthesized zinc oxide (ZnO) nanoparticles using Punica granatum (pomegranate) fruit peels extract

Sukri

Shameli

Wong

et al. 2019

Journal of Molecular Structure

Self Cite

179

View full text Add to dashboard Cite

show abstract

“…The SPR peaks were found to be increased with further increase in volume of gold chloroauric acid from 1 mL to 3.0 mL as shown in Figure-1. The higher SPR peaks observed for larger volume of gold chloroauric acid (1.0 mL -3.0 mL) could be due to an increase in formation of AuNPs due to higher amount of gold ion present in reaction mixture [32]. The UV-vis spectra peaks started to decrease with further increase in volume of gold chloroauric acid from 4.0 ml to 5.0 mL most likely due to unavailability of sufficient amount of bio-compounds to convert all gold ions into gold atoms as shown in Figure 1 [33].…”

Section: Resultsmentioning

confidence: 98%

“…Metallic nanoparticles are playing a vital role in electrical equipment [1], heat transfer applications [2,3] and grinding machines productivity [4]. Synthesis of various metallic nanoparticles including gold, silver platinum titanium dioxide, palladium iron and copper have been widely dealt by researchers because of their indispensable role in industrial applications [5][6][7][8][9][10][11]. However, AuNPs have gained special position among all other metallic nanoparticles due to their historic medicinal applications like cancer and arthritis treatment [12,13].…”

Section: Introductionmentioning

confidence: 99%

Effect of Volume of Gold Chloroauric Acid on Size, Shape and Stability of Biosynthesized AuNPs using Aqueous Elaeis guineensis (Oil Palm) Leaves Extract

Ahmad¹,

Bustam²,

Irfan³

et al. 2018

INT. J. AUTOMOT. MECH. ENG.

View full text Add to dashboard Cite

Biosynthesis of gold nanoparticles (AuNPs) using plant extracts has been receiving considerable attention of researchers due to their environmental friendly, low cost and renewability features. AuNPs were successfully synthesized at ambient conditions using aqueous Elaeis guineensis (oil palm) leaves extract without addition of any chemical agent. UV-Vis spectrophotometer, DLS and TEM were used to characterize the phytosynthesized AuNPs. FTIR was carried out to identify the functional groups involved in reduction of gold ions and stabilization of AuNPs. Hydrodynamic diameter was found to be reduced from 69± 39.80 nm to 55.22 ± 42.86 nm with an increase in the volume of gold chloroauric acid (1.53 mM) from 1.0 mL to 2.0 mL with fixed volume of oil palm leaves extract respectively. Size enlargement was observed from 60 ±43.76 nm to 123.5 ±110 nm with further increase in the volume of gold chloroauric acid from 3.0 mL to 5.0 mL respectively. Zeta potential (surface charge) of AuNPs was found to be reduced from-20 ± 6.80 mV to-15 ± 6.15 mV with an increase in the volume of gold chloroauric acid from 1.0 mL to 5.0 mL respectively. TEM results showed the formation of well scattered spherical, triangular and nonspherical shaped AuNPs by using 3.0 mL of gold chloroauric acid with an average particle diameter of 36.84 ± 9.0 nm. FTIR results revealed the role of phenolic, carboxylic and amides functional groups in reduction of gold ions to form AuNPs and their stabilization. Hence, ploydisperse AuNPs synthesized using Elaeis guineensis (oil palm) leaves with alterable morphology and good stability can be efficiently employed in medical and industrial applications.

show abstract

“…This equipment is able to investigate the stability of particular systems in the long‐term. A zeta value around (±30 mV) is needed for a physical suspension stabilized by the repulsion of the electrostatic role . The surface of nanoparticles has high electric charge and could be measured by elevation of absolute zeta potential which pointed to large repulsive forces between the nanoparticles that resulted into the stable particles …”

Section: Resultsmentioning

confidence: 99%

“…Metal nanoparticles have been widely used in several different fields such as catalysts, photonics, information storage, and biologic as a non‐toxic and environmentally friendly material . Among metal nanoparticles, silver nanoparticles (Ag‐NPs) have special applications in cancer treatment, sensor, and catalyst technologies .…”

Section: Introductionmentioning

confidence: 99%

Electro‐Catalytic Behavior of Silver Nanoparticles Embedded in Potato and Tapioca Starch for Oxygen Reduction Reaction

et al. 2018

Self Cite

View full text Add to dashboard Cite

The present work demonstrates an eco‐friendly and facile method for the synthesis of tapioca and potato starches incorporated by silver nanoparticles hereafter named (T‐Ag/NPs) and (P‐Ag/NPs), respectively. The analysis of UV–vis showed the appearance of surface plasmon resonance. The TEM analysis shows the formation of highly distributed Ag/NPs with an average diameter and standard deviation of 19.65 ± 2.45 and 12.27 ±7.39 nm for (P‐Ag/NPs) and (T‐Ag/NPs), respectively. The prepared (T‐Ag/NPs) show remarkable potential applicability in energy as low‐cost electrode material compared with (P‐Ag/NPs). They are used as a non‐precious catalyst for oxygen reduction reaction (ORR) in the alkaline medium. The presence of starch promotes long‐term stability up to 1000 cycles and avoid the dissolution and agglomeration of silver nanoparticles. The (T‐Ag/NPs) show significant stability and reproducibility.

show abstract

Cytotoxicity assay of biosynthesis gold nanoparticles mediated by walnut (Juglans regia) green husk extract

Cited by 60 publications

References 31 publications

Cytotoxicity and antibacterial activities of plant-mediated synthesized zinc oxide (ZnO) nanoparticles using Punica granatum (pomegranate) fruit peels extract

Cytotoxicity and antibacterial activities of plant-mediated synthesized zinc oxide (ZnO) nanoparticles using Punica granatum (pomegranate) fruit peels extract

Effect of Volume of Gold Chloroauric Acid on Size, Shape and Stability of Biosynthesized AuNPs using Aqueous Elaeis guineensis (Oil Palm) Leaves Extract

Electro‐Catalytic Behavior of Silver Nanoparticles Embedded in Potato and Tapioca Starch for Oxygen Reduction Reaction

Contact Info

Product

Resources

About