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Tytuł pozycji:

Evaluation of the Antioxidant Capacities of Antarctic Macroalgae and Their Use for Nanoparticles Production.

Tytuł:
Evaluation of the Antioxidant Capacities of Antarctic Macroalgae and Their Use for Nanoparticles Production.
Autorzy:
González-Ballesteros N; Departamento de Química Inorgánica, CINBIO, Universidade de Vigo, 36310 Vigo, Spain.
Rodríguez-Argüelles MC; Departamento de Química Inorgánica, CINBIO, Universidade de Vigo, 36310 Vigo, Spain.
Lastra-Valdor M; Centro de Investigación Marina, Universidade de Vigo, 36331 Vigo, Spain.
Źródło:
Molecules (Basel, Switzerland) [Molecules] 2021 Feb 23; Vol. 26 (4). Date of Electronic Publication: 2021 Feb 23.
Typ publikacji:
Journal Article
Język:
English
Imprint Name(s):
Original Publication: Basel, Switzerland : MDPI, c1995-
MeSH Terms:
Antioxidants/*pharmacology
Gold/*metabolism
Metal Nanoparticles/*chemistry
Phaeophyceae/*chemistry
Rhodophyta/*chemistry
Silver/*metabolism
Antarctic Regions ; Antioxidants/chemical synthesis ; Antioxidants/chemistry ; Biphenyl Compounds/antagonists & inhibitors ; Gold/chemistry ; Particle Size ; Picrates/antagonists & inhibitors ; Silver/chemistry
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Int J Nanomedicine. 2018 Feb 02;13:733-762. (PMID: 29440898)
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Grant Information:
ED431C 2017/46-GRC Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia; ED431C 2018/54 -GRC Consellería de Cultura, Educación e Ordenación Universitaria, Xunta de Galicia
Contributed Indexing:
Keywords: DPPH scavenging activity; Desmarestia antarctica; Iridaea cordata; gold nanoparticles; green synthesis; reducing power; silver nanoparticles; total phenolic content
Substance Nomenclature:
0 (Antioxidants)
0 (Biphenyl Compounds)
0 (Picrates)
3M4G523W1G (Silver)
7440-57-5 (Gold)
DFD3H4VGDH (1,1-diphenyl-2-picrylhydrazyl)
Entry Date(s):
Date Created: 20210306 Date Completed: 20210407 Latest Revision: 20240109
Update Code:
20240109
PubMed Central ID:
PMC7926919
DOI:
10.3390/molecules26041182
PMID:
33672102
Czasopismo naukowe
Macroalgae are sources of bioactive compounds that are interesting from both a chemical and a medical point of view. Although their use in biomedicine has increased significantly in recent years, tests conducted to date have been mostly related to species from temperate latitudes, with the potential application of Antarctic biodiversity being minor. The wide variety of algae species present on Antarctic coastal areas can be a source of new antioxidants. Bearing this in mind, the brown macroalgae Desmarestia antarctica (DA) and the red Iridaea cordata (IC) were selected for the preparation of aqueous extracts with the aim of analyzing their antioxidant activity. This analysis was performed by determining reducing power, total phenolic content, and 2,2-diphenyl-1-picrylhydrazyl free radical scavenging activity. Furthermore, both extracts were employed to synthesize gold and silver nanoparticles. The nanomaterials were fully characterized by means of UV-Visible spectroscopy, transmission electron microscopy, Z potential measurements, and Fourier transform infrared spectroscopy, which confirmed the formation of stable, spherical nanoparticles with mean diameters of 13.7 ± 3.1 and 17.5 ± 3.7 nm for Ag@DA and Ag@IC and 12.6 ± 1.9 and 12.3 ± 1.6 nm for Au@DA and Au@IC. Antioxidant assays were performed after the synthesis of the nanomaterials to evaluate their possible synergistic effect with the extracts. The results suggest that polysaccharides and proteins may play a key role in the process of reduction and stabilization. Finally, for the sake of comparison, the results obtained for the Antarctic macroalgae Desmarestia menziesii and Palmaria decipiens have also been considered in the present work.
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