In vitro cytotoxicity, macromolecular interaction and antioxidant potential of dual coated selenium nanoparticles

2022 ◽  
Author(s):  
Vrundali Shinde ◽  
Krutika Desai
Keyword(s):  
In Vitro Cytotoxicity ◽  
Selenium Nanoparticles ◽  
Antioxidant Potential

scholarly journals Folate-Targeted Transgenic Activity of Dendrimer Functionalized Selenium Nanoparticles In Vitro

2020 ◽  
Vol 21 (19) ◽  
pp. 7177
Author(s):  
Nikita Simone Pillay ◽  
Aliscia Daniels ◽  
Moganavelli Singh
Keyword(s):  
Transgene Expression ◽  
In Vitro Cytotoxicity ◽  
Selenium Nanoparticles ◽  
In Vivo Studies ◽  
Cellular Interaction ◽  
Nucleic Acid Binding ◽  
Specific Targeting ◽  
Cancer Types

Current chemotherapeutic drugs, although effective, lack cell-specific targeting, instigate adverse side effects in healthy tissue, exhibit unfavourable bio-circulation and can generate drug-resistant cancers. The synergistic use of nanotechnology and gene therapy, using nanoparticles (NPs) for therapeutic gene delivery to cancer cells is hereby proposed. This includes the benefit of cell-specific targeting and exploitation of receptors overexpressed in specific cancer types. The aim of this study was to formulate dendrimer-functionalized selenium nanoparticles (PAMAM-SeNPs) containing the targeting moiety, folic acid (FA), for delivery of pCMV-Luc-DNA (pDNA) in vitro. These NPs and their gene-loaded nanocomplexes were physicochemically and morphologically characterized. Nucleic acid-binding, compaction and pDNA protection were assessed, followed by cell-based in vitro cytotoxicity, transgene expression and apoptotic assays. Nanocomplexes possessed favourable sizes (<150 nm) and ζ-potentials (>25 mV), crucial for cellular interaction, and protected the pDNA from degradation in an in vivo simulation. PAMAM-SeNP nanocomplexes exhibited higher cell viability (>85%) compared to selenium-free nanocomplexes (approximately 75%), confirming the important role of selenium in these nanocomplexes. FA-conjugated PAMAM-SeNPs displayed higher overall transgene expression (HeLa cells) compared to their non-targeting counterparts, suggesting enhanced receptor-mediated cellular uptake. Overall, our results bode well for the use of these nano-delivery vehicles in future in vivo studies.

scholarly journals ANTIOXIDANT POTENTIAL, ANTITUMOR ACTIVITY AND PHENOLIC PROFILE OF PHOENIX DACTYLIFERA LINN

2017 ◽  
Vol 9 (5) ◽  
pp. 130
Author(s):  
Manal Mortady Hamed ◽  
Mona Abdel Motagally Mohamed ◽  
Wafaa Sabry Ahmed
Keyword(s):  
Antitumor Activity ◽  
Phoenix Dactylifera ◽  
In Vitro Cytotoxicity ◽  
Antioxidant Potential ◽  
Butanol Extract ◽  
Chemical Structures ◽  
Total Antioxidant ◽  
Ic50 Values ◽  
Date Fruits

Objective: Phoenix dactylifera Linn (Fam.: arecaceae)or date fruits are commercial crops that notarized in holy quran. 70% aqueous MeOH extract of the fruits led to isolation of six compounds; its chemical structures were determined as, β-sitosterol (1), caffeic acid (2), ferulic acid (3), protocatechuic acid (4), p-hydroxybenzoic acid (5) and luteolin (6).Methods: The accurately weighed date fruits were washed, sliced and socked freshly in 70% methanol then exhaustively extracted under reflux for about 2 w and filtered, then fractionated by different solvent; finaly the butanol extract evaporated and fractionated on a polyamide glass column. Using Sephadex LH-20 column to purify the compounds obtained. In our preliminary study, the extracts and compounds were subjected to in vitro cytotoxicity against HepG2 cell line through the MTT assay and the antioxidant potential of the extracts and pure compounds were assayed through in vitro model using (DPPH) and phosphomolybdenum assays.Results: Compounds 2 and 3 exhibited promising antitumor activity with IC50 values of 6 and 10 μg/ml, respectively. Moreover compounds 1, 4, 5 and 6 showed cytotoxic activity with IC50 values of 13, 15, 21 and 35 μg/ml, respectively. The antioxidant potential of the compounds showed the inhibition percentage values (SC50) ranged from 4.36 to 10.25 μg/ml, while the total antioxidant capacity ranged from (583.66 to 702.00 mg AAE/g compound).Conclusion: Our study demonstrated that; dates constituents are powerful as antioxidant and antitumor; hence it is the best potential for pharmaceutical applications.

scholarly journals Antimicrobial and Antioxidant Potential of Scenedesmus obliquus Microalgae in the Context of Integral Biorefinery Concept

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 519
Author(s):  
Maya Margaritova Zaharieva ◽  
Dimitrina Zheleva-Dimitrova ◽  
Snezhana Rusinova-Videva ◽  
Yana Ilieva ◽  
Anna Brachkova ◽  
...  
Keyword(s):  
Scenedesmus Obliquus ◽  
Red Light ◽  
Green Light ◽  
Initial Step ◽  
In Vitro Cytotoxicity ◽  
Antioxidant Potential ◽  
Small Scale ◽  
Microalgal Biomass ◽  
Oregano Essential Oil

Small-scale photobioreactors (PBRs) in the inoculum stage were designed with internal (red or green) and external white LED light as an initial step of a larger-scale installation aimed at fulfilling the integral biorefinery concept for maximum utilization of microalgal biomass in a multifunctional laboratory. The specific growth rate of Scenedesmus obliquus (Turpin) Kützing biomass for given cultural conditions was analyzed by using MAPLE software. For the determination of total polyphenols, flavonoids, chlorophyll “a” and “b”, carotenoids and lipids, UHPLC-HRMS, ISO-20776/1, ISO-10993-5 and CUPRAC tests were carried out. Under red light growing, a higher content of polyphenols was found, while the green light favoured the flavonoid accumulation in the biomass. Chlorophylls, carotenoids and lipids were in the same order of magnitude in both samples. The dichloromethane extracts obtained from the biomass of each PBR synergistically potentiated at low concentrations (0.01–0.05 mg/mL) the antibacterial activity of penicillin, fluoroquinolones or oregano essential oil against the selected food-borne pathogens (Staphylococcus aureus, Escherichia coli and Salmonella typhimurium) without showing any in vitro cytotoxicity. Both extracts exhibited good cupric ion-reducing antioxidant capacity at concentrations above 0.042–0.08 mg/mL. The UHPLC-HRMS analysis revealed that both extracts contained long chain fatty acids and carotenoids thus explaining their antibacterial and antioxidant potential. The applied engineering approach showed a great potential to modify microalgae metabolism for the synthesis of target compounds by S. obliquus with capacity for the development of health-promoting nutraceuticals for poultry farming.

Screening of in vitro cytotoxicity, antioxidant potential and bioactivity of nano- and micro-ZrO2 and -TiO2 particles

2013 ◽  
Vol 93 ◽  
pp. 191-197 ◽  
Author(s):  
Gopalu Karunakaran ◽  
Rangaraj Suriyaprabha ◽  
Palanisamy Manivasakan ◽  
Rathinam Yuvakkumar ◽  
Venkatachalam Rajendran ◽  
...  
Keyword(s):  
In Vitro Cytotoxicity ◽  
Antioxidant Potential ◽  
Tio2 Particles

Fabrication of Calcium Sulfate Coated Selenium Nanoparticles and Corresponding In-Vitro Cytotoxicity Effects Against 4T1 Breast Cancer Cell Line

2021 ◽  
Author(s):  
Elnaz Faghfuri ◽  
Ramak Ajideh ◽  
Faranak Shahverdi ◽  
Mina Hosseini ◽  
Faranak Mavandadnejad ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Cells ◽  
Calcium Sulfate ◽  
Cancer Cell Line ◽  
Inhibitory Effect ◽  
In Vitro Cytotoxicity ◽  
Selenium Nanoparticles ◽  
The Difference ◽  
Cytotoxicity Effects

Background: The inhibitory effect of selenium nanoparticles (SeNPs) on cancer cells has been reported in many studies. In this study, the purpose was to compare the in vitro effects of SeNPs and calcium sulfate coated selenium nanoparticles (CaSO4@ SeNPs) on breast cancer cells. Methods: CaSO4@SeNPs and SeNPs were chemically synthesized and characterized with Field Emission Scanning Electron Microscope (FESEM) and energy-dispersive X-ray spectroscopy (EDX). By applying MTT assay, the cytotoxicity effect of both nanomaterials on the 4T1 cancer cells was investigated. Results: While LD50 of SeNPs on 4T1 cancer cells was 80 µg, the LD50 of CaSO4@SeNPs was reported to be only 15 µg. The difference between the inhibition rates obtained for SeNPs and CaSO4@SeNPs was statistically significant (p=0.05). In addition, at higher concentrations (50 µg) of CaSO4@SeNPs, the cytotoxicity was 100% more than SeNPs alone.   Conclusion: According to the result of the present work, it can be concluded that de-coration of SeNPs with calcium sulfate leads to an increase in potency by decreasing the effective dose. This effect can be attributed to activation of intrinsic apoptosis signaling and/or pH regulatory properties of CaSO4@SeNPs. However, further studies are still needed to determine the exact corresponding mechanisms of this synergistic effect.

scholarly journals In-vitro cytotoxicity of java tea mediated selenium nanoballs against L6 cell lines

2018 ◽  
Vol 8 (6) ◽  
pp. 195-200 ◽  
Author(s):  
Chitra Sivakumar ◽  
Karthikeyan Jeganathan
Keyword(s):  
Cell Lines ◽  
In Vitro Cytotoxicity ◽  
Skeletal Muscle Cell ◽  
Selenium Nanoparticles ◽  
Tea Leaves ◽  
Rat Skeletal Muscle ◽  
Herbal Tea ◽  
Individual Healthcare

The emergence of Nanotechnology has provided a catholic research in recent years by intersecting with assorted branches of science and forming collision on all forms of life. At present there has been a prodigious excitement in the field of Nano pharmacology to seek the role of Nano selenium in individual healthcare and explains how selenium is a double edged sword in the pathologies of chronic diseases like Diabetes mellitus because of their inferior toxicity and ability to gradually release the bioactive principle and free selenium after ingestion. Thus the present study is an embryonic attempt and was aimed at the adroitful synthesis of selenium nanoballs from the aqueous extract of well known herbal tea leaves namely Java tea (Orthosiphon stamineus)  using selenious acid solution. The synthesized Selenium nanoparticles were then subjected to various characterization techniques such as UV, FTIR, FESEM, EDAX and Zeta potential respectively. Finally the green synthesized SeNps were tested for their cytotoxic effect against L6 rat skeletal muscle cell lines. The pre clinical studies are underway to prove the insulin mimic activity of the selenium nanoparticles. Keywords: Selenium Nanoparticles, Java tea, L6 cell lines.

Antioxidant potential of Arnica montana and Urtica dioica hydroalcoholic extracts on mouse fibroblasts in vitro

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
L Moldovan ◽  
O Craciunescu ◽  
L Toma ◽  
A Gaspar ◽  
D Constantin
Keyword(s):  
Urtica Dioica ◽  
Antioxidant Potential ◽  
Mouse Fibroblasts ◽  
Arnica Montana

In vitro antioxidant potential of spray-dried Psidium guajava L. leaves extracts

Planta Medica ◽  
2013 ◽  
Vol 79 (13) ◽  
Author(s):  
MR Fernandes ◽  
CR Souza ◽  
ML Martinez ◽  
WP Oliveira
Keyword(s):  
Psidium Guajava ◽  
Antioxidant Potential ◽  
Spray Dried
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