scholarly journals Evaluation of the Anticancer Activity of Phytomolecules Conjugated Gold Nanoparticles Synthesized by Aqueous Extracts of Zingiber officinale (Ginger) and Nigella sativa L. Seeds (Black Cumin)

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3368
Author(s):  
Alaa H. Alkhathlan ◽  
Hessah A. Al-Abdulkarim ◽  
Merajuddin Khan ◽  
Mujeeb Khan ◽  
Musaed Alkholief ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Cell Lines ◽  
Nigella Sativa ◽  
Zingiber Officinale ◽  
Synthetic Methods ◽  
Aqueous Extracts ◽  
High Concentration ◽  
Tem Analysis ◽  
Au Nps ◽  
Anticancer Properties

The conventional physical and chemical synthetic methods for the preparation of metal nanoparticles have disadvantages as they use expensive equipment and hazardous chemicals which limit their applications for biomedical purposes, and are not environment friendly. However, for the synthesis of biocompatible nanomaterials, plant-based techniques are eco-friendly and easy to handle. Herein a simple, single-step biosynthesis of gold nanoparticles using aqueous extracts of Nigella sativa (NSE) and Zingiber officinale (GE) as a reducing and capping agent has been demonstrated. The formation of gold nanoparticles (Au NPs) was confirmed by X-ray diffraction, UV-Vis, and EDS spectroscopies. Spectroscopic and chromatographic analysis of GE and NSE revealed the presence of bioactive phytochemical constituents, such as gingerol, thymoquinone, etc., which successfully conjugated the surface of resulting Au NPs. TEM analysis indicated the formation of smaller-sized, less-aggregated, spherical-shaped Au NPs both in the case of GE (~9 nm) and NSE (~11 nm). To study the effect of the concentration of the extracts on the quality of resulting NPs and their anticancer properties, three different samples of Au NPs were prepared from each extract by varying the concentration of extracts while keeping the amount of precursor constant. In both cases, high-quality, spherical-shaped NPs were obtained, only at a high concentration of the extract, whereas at lower concentrations, larger-sized, irregular-shaped NPs were formed. Furthermore, the as-prepared Au NPs were evaluated for the anticancer properties against two different cell lines including MDA-MB-231 (breast cancer) and HCT 116 (colorectal cancer) cell lines. GE-conjugated Au NPs obtained by using a high concentration of the extract demonstrated superior anticancer properties when compared to NSE-conjugated counterparts.

Green Synthesis of Metal Nanoparticles from Adiantum Frond: Comparative Analysis on Cancer Cell Lines

2020 ◽  
Vol 10 (6) ◽  
pp. 806-816
Author(s):  
Sabiha Zamani ◽  
Danish Idrees ◽  
Babita Jha ◽  
Anal K. Jha
Keyword(s):  
Breast Cancer ◽  
Gold Nanoparticles ◽  
Anticancer Activity ◽  
Cell Line ◽  
Cell Lines ◽  
Cancer Cell ◽  
Mtt Assay ◽  
Cancer Cell Lines ◽  
Ag Nps ◽  
Au Nps

Background:: At the present time, silver and gold nanoparticles are emerging as promising agents for cancer therapy. The anticancer activities of these nanoparticles have been evaluated against numerous human cancer cell lines. Still, few reports were existing against the breast cancer cell lines and most of these studies have mainly used chemically mediated nanoparticles. Objective:: This study reports the in vitro anticancer activity of bioinspired Nanoparticles like, silver and gold against MCF-7 cells (breast cancer cell line) as well as HEK293 cell (human embryonic kidney cell line) by MTT assay. Methods: These metal nanoparticles, Ag-NPs and Au-NPs were biologically synthesized using Adiantum sp. aqueous leaves extract. The Adiantum sp. can reduce HAuCl4 solution to Au-NPs and AgNO3 to Ag-NPs within 30 mins. The formation of NPs was confirmed by characterization techniques such as UV-vis spectrophotometer, SEM and XRD studies. Additionally, the anticancer activity was analysed by cell viability (3(4,5-dimethly-thiazol-2-yl)- 2,5-diphenyl tetrazo-lium bromide assay). Results: The synthesized nanoparticles from Adiantum sp. were characterized by UV-visible spectroscopy. The role of functional groups was analysed using a Fourier Transform Infrared (FTIR) spectrophotometer. The XRD pattern clearly exemplified that the nanoparticles formed in this present synthesis are crystalline in nature. Furthermore, in MTT assay study, both NPs have shown cytotoxicity at different concentrations ranging from 2.5 to 100 μg/ml. The data reveal that the NPs from Adiantum explicitly, inhibits the viability of cancerous cell only and are non-cytotoxic to HEK293 cells in the tested concentration range. Conclusion: The results provide a preliminary guidance that Adiantum mediated silver and gold nanoparticles might be used to treat breast cancer; however, it necessitates clinical studies to ascertain their potential as anticancer agents.

scholarly journals Bromide-Assisted Anisotropic Growth of Gold Nanoparticles as Substrates for Surface-Enhanced Raman Scattering

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Melissa A. Kerr ◽  
Fei Yan
Keyword(s):  
Gold Nanoparticles ◽  
Raman Scattering ◽  
Chemical Properties ◽  
Surface Enhanced Raman Scattering ◽  
Synthetic Methods ◽  
Au Nps ◽  
Vis Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

We report herein a one-step synthesis of gold nanoparticles (Au NPs) of various shapes such as triangles, hexagons, and semispheres, using 5-hydroxyindoleacetic acid (5-HIAA) as the reducing agent in the presence of potassium bromide (KBr). Anisotropic Au NPs have received ever-increasing attention in various areas of research due to their unique physical and chemical properties. Numerous synthetic methods involving either top-down or bottom-up approaches have been developed to synthesize Au NPs with deliberately varied shapes, sizes, and configurations; however, the production of templateless, seedless, and surfactant-free singular-shaped anisotropic Au NPs remains a significant challenge. The concentrations of hydrogen tetrachloroaurate (HAuCl4), 5-HIAA, and KBr, as well as the reaction temperature, were found to influence the resulting product morphology. A detailed characterization of the resulting Au NPs was performed using ultraviolet-visible (UV-Vis) spectroscopy, scanning electron microscopy (SEM), and Raman spectroscopy. The as-prepared Au NPs exhibited excellent surface-enhanced Raman scattering (SERS) properties, which make them very attractive for the development of SERS-based chemical and biological sensors.

scholarly journals Ecofriendly Synthesis of Silver Nanoparticles Using Aqueous Extracts of Zingiber officinale (Ginger) and Nigella sativa L. Seeds (Black Cumin) and Comparison of Their Antibacterial Potential

2020 ◽  
Vol 12 (24) ◽  
pp. 10523
Author(s):  
Alaa H. Alkhathlan ◽  
Hessah A. AL-Abdulkarim ◽  
Mujeeb Khan ◽  
Merajuddin Khan ◽  
Abdullah AlDobiy ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Nigella Sativa ◽  
Synergetic Effect ◽  
Antibacterial Properties ◽  
Zingiber Officinale ◽  
Aqueous Extracts ◽  
Ag Nps ◽  
Black Cumin ◽  
Vis Spectroscopy

Applications of chemical synthetic methods for the preparation of metal nanoparticles involve toxic reagents, which are hazardous to both humans and the environment. On the other hand, ecofriendly plant-based techniques offer rapid, non-toxic, and suitable alternatives to the traditional methods. Herein, we report an eco-friendly method for the preparation of silver nanoparticles (Ag NPs) using two different aqueous extracts of Zingiber officinale (ginger) and Nigella sativa L. seeds (black cumin). Successful preparation of Ag NPs was confirmed by X-ray diffraction, ultraviolet–visible (UV-Vis) spectroscopy, and energy dispersive spectroscopy (EDX). Transmission electron microscopy (TEM) analysis revealed that Nigella sativa L. seed extract (NSE) produced a smaller size of NPs (~8 nm), whereas the ginger extract (GE) led to the formation of slightly larger Ag NPs (~12 nm). In addition, to study the effect of concentration of the extract on the quality of resulting NPs, two different samples were prepared from each extract by increasing the concentrations of the extracts while using a fixed amount of precursor (AgNO3). In both cases, a high concentration of extract delivered less agglomerated and smaller-sized Ag NPs. Furthermore, the antibacterial properties of as-prepared Ag NPs were tested against different bacterial strains. Notably, despite the slightly better quality of Ag NPs obtained from NSE (NSE-Ag), NPs prepared by using GE (GE-Ag) demonstrated superior antibacterial properties. In case of the plant-extract-based synthesis of nanoparticles, it is widely reported that during the preparation, the residual phytomolecules remain on the surface of resulting NPs as stabilizing agents. Therefore, in this case, the high antibacterial properties of GE-Ag can be attributed to the contributing or synergetic effect of residual phytomolecules of GE extract on the surface of Ag NPs, since the aqueous extract of GE has been known to possess higher intrinsic bactericidal properties when compared to the aqueous NSE extract.

Tem analysis of multiple-energy arsenic implanted and Rta'd silicon

1987 ◽  
Vol 45 ◽  
pp. 246-247
Author(s):  
R.A. Herring
Keyword(s):  
Device Fabrication ◽  
High Concentration ◽  
Tem Analysis ◽  
Defect Clusters ◽  
High Fluences ◽  
Small Defect ◽  
Before And After ◽  
The Matrix ◽  
The Difference ◽  
Factor Type

Rapid thermal annealing (RTA) of ion-implanted Si is important for device fabrication. The defect structures of 2.5, 4.0, and 6.0 MeV As-implanted silicon irradiated to fluences of 2E14, 4E14, and 6E14, respectively, have been analyzed by electron diffraction both before and after RTA at 1100°C for 10 seconds. At such high fluences and energies the implanted As ions change the Si from crystalline to amorphous. Three distinct amorphous regions emerge due to the three implantation energies used (Fig. 1). The amorphous regions are separated from each other by crystalline Si (marked L1, L2, and L3 in Fig. 1) which contains a high concentration of small defect clusters. The small defect clusters were similar to what had been determined earlier as being amorphous zones since their contrast was principally of the structure-factor type that arises due to the difference in extinction distance between the matrix and damage regions.

Effect of black seeds (Nigella sativa) volatile oil on the cervical cancer: In vitro study, on Hela cell lines

2019 ◽  
Vol 7 (4) ◽  
pp. 91-96
Author(s):  
Isra'a Al-sobhi ◽  
◽  
Rawan Al-Ghabban ◽  
Soad Shaker Ali ◽  
Jehan Al-Amri ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Hela Cell ◽  
Cell Lines ◽  
Nigella Sativa ◽  
In Vitro Study ◽  
Volatile Oil ◽  
Vitro Study ◽  
Hela Cell Lines ◽  
Black Seeds

Artepillin C Induces Selective Oxidative Stress and Inhibits Migration and Invasion in a Comprehensive Panel of Human Cervical Cancer Cell Lines

2019 ◽  
Vol 18 (12) ◽  
pp. 1750-1760 ◽  
Author(s):  
Raquel P. Souza ◽  
Patrícia S. Bonfim-Mendonça ◽  
Gabrielle M.Z.F. Damke ◽  
Analine R.B. de-Assis Carvalho ◽  
Bianca A. Ratti ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Cervical Cancer ◽  
Cell Lines ◽  
Migration And Invasion ◽  
Epithelial Cell Line ◽  
Cellular Viability ◽  
Hpv 16 ◽  
Anticancer Properties ◽  
Artepillin C ◽  
Human Cervical Cancer

Background: Artepillin C (3,5-diprenyl-4-hydroxycinnamic acid) is the main bioactive component of Brazilian green propolis, and possesses, among other things, anticancer properties. However, to the best of our knowledge, there are no studies of artepillin C in cervical cancer. Method: To explore a new therapeutic candidate for cervical cancer, we have evaluated the effects of artepillin C on cellular viability in a comprehensive panel of human cervical cancer-derived cell lines including HeLa (human papillomavirus/HPV 18-positive), SiHa (HPV 16-positive), CaSki (HPV 16- and 18-positive) and C33A (HPV-negative) cells compared to a spontaneously immortalized human epithelial cell line (HaCaT). Results: Our results demonstrated that artepillin C had a selective effect on cellular viability and could induce apoptosis possibly by intrinsic pathway, likely a result of oxidative stress, in all cancer-derived cell lines but not in HaCaT. Additionally, artepillin C was able to inhibit the migration and invasion of cancer cells. Conclusion: Thus, artepillin C appears to be a promising new candidate as an anticancer drug for cervical cancer induced by different HPV types.

scholarly journals Chitosan-Coated Gold Nanoparticles Induce Low Cytotoxicity and Low ROS Production in Primary Leucocytes, Independent of Their Proliferative Status

Pharmaceutics ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 942
Author(s):  
Helen Yarimet Lorenzo-Anota ◽  
Diana G. Zarate-Triviño ◽  
Jorge Alberto Uribe-Echeverría ◽  
Andrea Ávila-Ávila ◽  
José Raúl Rangel-López ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Cell Death ◽  
Cancer Cells ◽  
Cell Lines ◽  
Mononuclear Cells ◽  
Bone Marrow Cells ◽  
Lymphoid Cells ◽  
Ros Production ◽  
Biomedical Sciences ◽  
Peripheral Blood Mononuclear

(1) Background: Chitosan-coated gold nanoparticles (CH-AuNPs) have important theranostic applications in biomedical sciences, including cancer research. However, although cell cytotoxicity has been studied in cancerous cells, little is known about their effect in proliferating primary leukocytes. Here, we assessed the effect of CH-AuNPs and the implication of ROS on non-cancerous endothelial and fibroblast cell lines and in proliferative lymphoid cells. (2) Methods: The Turkevich method was used to synthetize gold nanoparticles. We tested cell viability, cell death, ROS production, and cell cycle in primary lymphoid cells, compared with non-cancer and cancer cell lines. Concanavalin A (ConA) or lipopolysaccharide (LPS) were used to induce proliferation on lymphoid cells. (3) Results: CH-AuNPs presented high cytotoxicity and ROS production against cancer cells compared to non-cancer cells; they also induced a different pattern of ROS production in peripheral blood mononuclear cells (PBMCs). No significant cell-death difference was found in PBMCs, splenic mononuclear cells, and bone marrow cells (BMC) with or without a proliferative stimuli. (4) Conclusions: Taken together, our results highlight the selectivity of CH-AuNPs to cancer cells, discarding a consistent cytotoxicity upon proliferative cells including endothelial, fibroblast, and lymphoid cells, and suggest their application in cancer treatment without affecting immune cells.

scholarly journals Easy and fast in-situ functionalization of exfoliated 2D black phosphorus with gold nanoparticles

2021 ◽  
Author(s):  
Salvatore Moschetto ◽  
Andrea Ienco ◽  
Gabriele Manca ◽  
Manuel Serrano-Ruiz ◽  
Maurizio Peruzzini ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Black Phosphorus ◽  
Au Nps ◽  
In Situ Functionalization

Heterostructures of single- and few-layer black phosphorus (2D bP) functionalized with gold nanoparticles (Au NPs) have been recently reported in the literature, exploiting their intriguing properties and biocompatibility for catalytic,...

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