Development, Characterization and Anticancer Evaluation of Silver Nanoparticles from Dalbergia sissoo Leaf Extracts

2020 ◽  
Vol 16 (2) ◽  
pp. 145-151
Author(s):  
Aakash Deep ◽  
Mitali Verma ◽  
Rakesh K. Marwaha ◽  
Arun K. Sharma ◽  
Beena Kumari

Aim: The objective behind this present work is the development and characterization of silver nanoparticles from Dalbergia sissoo leaf extracts and the analysis of anticancer activity. Methods: Silver nanoparticles were prepared by using the aqueous solution of Dalbergia sisoo leaf extract and silver nitrate. The formation of nanoparticles was determined by the color change during the preparation of plant extract to metal ion in a fixed ratio. The prepared nanoparticles were then characterized by TEM, FTIR, DLS, XRD, and SEM. Silver nanoparticles were also evaluated for anticancer activity. Results: Synthesized silver nanoparticles were having good anticancer activity against MCF 7 cancer cell line as compared to the standard drug Doxorubicin. Conclusion: The particle size of nanoparticles was found to lie in the range of 10 to 50 nm.

2020 ◽  
Vol 5 (4) ◽  
pp. 301-306
Author(s):  
Praveen Kumar ◽  
Jai Prakash Kumar ◽  
Juhi Barnwal ◽  
Ritu Singh

Novel 4-{3-[2-(2-morpholin-4-yl-ethoxy)phenyl]-5-phenyl-pyrazol- 1-yl}benzenesulfonamide (7) was synthesized and evaluated for its anti-breast cancer activity. It was prepared by cyclocondensation reaction of morpholine-substituted β-diketone, 1-[2-(2-morpholin-4-yl-ethoxy)- phenyl]-3-phenyl-propane-1,3-dione (3) with 4-hydrazinobenzenesulfonamide hydrochloride (6). Chemical structure of titled compound (7) was confirmed by FTIR, 1H & 13C NMR and HRMS spectroscoic analyses. The anticancer activity of titled compound 7 was evaluated against MCF-7 breast cancer cell line by MTT assay. Molecular docking was performed to predict its plausible binding with the estrogen receptor α(ERα) using Molecular Operating Environment 2019.0101 software. The MTT assay results showed that titled compound 7 exhibited better anticancer activity against MCF7 cells (IC50: 4.25 μM) than standard drug, 4-hydroxytamoxifen (IC50: 8.22 μM). Results of molecular docking studies were found in good agreement with the results of anticancer evaluation, as the binding score of titled compound 7 (-16.9872 kcal/mol) was lower as compared to 4-hydroxytamoxifen (-15.1112 kcal/mol). The new cationic interaction of titled compound 7 with Trp383 and hydrogen bonding interaction with Phe404 in active site of ERα made its anticancer activity better than 4-hydroxytamoxifen. Thus, 4-{3-[2-(2-morpholin-4-yl-ethoxy)phenyl]-5-phenyl-pyrazol- 1-yl}benzenesulfonamide (7) was emerged as a potent anti-breast cancer agent.


2018 ◽  
Vol 47 (2) ◽  
pp. 359-367 ◽  
Author(s):  
Bojana VELJKOVIC ◽  
Natasa DJORDJEVIC ◽  
Zana DOLICANIN ◽  
Braho LICINA ◽  
Marina TOPUZOVIC ◽  
...  

In this study the leaves and fruits of wild raspberry (Rubus idaeus L.) populations from the central Balkan region were examined to determine the level of secondary metabolites and related antioxidant activity, as well as biological activity, upon existing ethnobotanical evidence, primarily linked to gastrointestinal disorders. The values obtained for total phenols ranged from 59.68 to 96.83 mg GA g-1 and 24.29 to 38.71 mg GA g-1 in leaf and fruit extracts, respectively. The highest values of tannins and anthocyanins were determined for leaf extracts from a population of east Serbia at a level of 1.27 mg mL-1 and 9.00 mg mL-1. Antioxidant activity was evaluated by measuring the scavenging capacity of the extracts on DPPH. Higher antioxidant activity was detected in the leaf extracts than in the fruit extracts. Leaf and fruit extract were the most effective against Escherichia coli (ATCC 8739). Anticancer activity was studied on a human colorectal cancer cell line HCT-116. Leaf extracts exhibited anticancer activity with IC50/24 h 162.38 μg mL-1 and IC50/48 h 95.69 μg mL-1. Wild raspberry leaf and fruit extracts contain numerous secondary metabolites providing marked antioxidant, antimicrobial and anticancer activity.


2021 ◽  
Vol 19 ◽  
Author(s):  
Moinuzzaman ◽  
Mohammad Abu Hena Mostofa Jamal ◽  
Helal Uddin ◽  
Shahedur Rahman ◽  
Abdul Momin ◽  
...  

Background: In new modern science Nanotechnology is an emerging field for the researchers. Nanotechnology deals with the Nanoparticles. These Nanoparticles have a size of 1-100 nm in one dimension which are important part of biomedical science and medical chemistry, atomic physics, and all other known fields. Nanoparticles are used in broad range due to its small size, orientation, physical properties. Objectives: This study was designed to synthesized Silver nanoparticles using Azadirachta indica (Neem) leaf extract and evaluate biomedical application. Methods: Aqueous extract of Azadirachta indica is used for the synthesis of AgNPs. 1ml of the extract was added to (30- 60) ml of 1mM solution of silver nitrate drop by drop. Silver nanoparticle was characterized by UV-Visible Spectroscopy, Fourier Transform Infrared Spectroscopy, Dynamic Light Scattering Spectroscopy, X-ray Diffraction, Transmission Electron Microscopy, Antibacterial activity studies. Results: The Biological synthesis of Silver nanoparticles (AgNPs) was done by using the aqueous solution of Azadirachta indica leaf extract and AgNO3. A fixed ratio of plant extract to metal ion was used to prepare AgNPs and the formation of the nanoparticles was observed by the color change. The nanoparticles were characterized by UV-vis Spectrophotometer, FTIR, DLS, XRD and TEM. The nanoparticles were found have the size ranges from 30-60 nm. The biosynthesized silver nanoparticles had bactericidal effect against antibiotic resistance pathogenic microorganisms such as Bascillus subtilis, pseudomonas aeruginosa and Bascillus cereus. Conclusion: Silver nanoparticles were synthesized by Azadirachta indica leaf extract can be used as a therapeutic candidate for biomedical applications.


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