scholarly journals Algae-mediated route to biogenic cuprous oxide nanoparticles and spindle-like CaCO3: a comparative study, facile synthesis, and biological properties

RSC Advances ◽  
2021 ◽  
Vol 11 (18) ◽  
pp. 10599-10609
Author(s):  
Parisa Taherzadeh Soureshjani ◽  
Ahmad Shadi ◽  
Fatemeh Mohammadsaleh
Keyword(s):  
Comparative Study ◽  
Aqueous Extract ◽  
Cuprous Oxide ◽  
Brown Algae ◽  
Antibacterial Agents ◽  
Biological Properties ◽  
Oxide Nanoparticles ◽  
Facile Synthesis ◽  
Cuprous Oxide Nanoparticles

Cu2O nanoparticles were produced using aqueous extract of the brown algae featuring Cystoseira myrica and Sargassum latifolium and examined as anticancer and antibacterial agents.

scholarly journals Green synthesis of cuprous oxide (Cu2O) nano particles using aloe vera plant

2021 ◽  
Vol 10 (2) ◽  
pp. 54-58
Author(s):  
Giang Nguyen Thi Le ◽  
Tu Nguyen Cong ◽  
Thang Pham Van ◽  
Mai Nguyen Thi Tuyet ◽  
Lan Nguyen Thi ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Aqueous Extract ◽  
Cuprous Oxide ◽  
Aloe Vera ◽  
Analytical Techniques ◽  
Nano Particles ◽  
Oxide Nanoparticles ◽  
Characterization Techniques ◽  
Cuprous Oxide Nanoparticles ◽  
Ft Ir

In the present work,  a green synthesis of  cuprous oxide nanoparticles  was demonstrated using the freshly prepared aqueous extract of the aloe vera plant and the cupper oxide nanoparticles  were characterized by the analytical techniques such as UV-Vis, FT-IR, XRD, and EDX. Characterization techniques confirmed that the biomolecules involved  in the formation of cupper oxide nanoparticles and also they stabilized the nanoparticles.

Facile synthesis of cuprous oxide nanoparticles by plasma electrochemistry

2016 ◽  
Vol 49 (27) ◽  
pp. 275201 ◽  
Author(s):  
Jiandi Liu ◽  
Qiang Chen ◽  
Junshuai Li ◽  
Qing Xiong ◽  
Guanghui Yue ◽  
...  
Keyword(s):  
Cuprous Oxide ◽  
Oxide Nanoparticles ◽  
Facile Synthesis ◽  
Cuprous Oxide Nanoparticles

scholarly journals Green Synthesis of Copper Oxide Nanoparticles Using Protein Fractions from an Aqueous Extract of Brown Algae Macrocystis pyrifera

Processes ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 78
Author(s):  
Karla Araya-Castro ◽  
Tzu-Chiao Chao ◽  
Benjamín Durán-Vinet ◽  
Carla Cisternas ◽  
Gustavo Ciudad ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Copper Oxide ◽  
Green Synthesis ◽  
Aqueous Extract ◽  
Brown Algae ◽  
Copper Oxide Nanoparticles ◽  
Macrocystis Pyrifera ◽  
Protein Fractions ◽  
Oxide Nanoparticles ◽  
Cuo Nps

Amongst different living organisms studied as potential candidates for the green synthesis of copper nanoparticles, algal biomass is presented as a novel and easy-to-handle method. However, the role of specific biomolecules and their contribution as reductant and capping agents has not yet been described. This contribution reports a green synthesis method to obtain copper oxide nanoparticles (CuO-NPs) using separated protein fractions from an aqueous extract of brown algae Macrocystis pyrifera through size exclusion chromatography (HPLC-SEC). Proteins were detected by a UV/VIS diode array, time-based fraction collection was carried out, and each collected fraction was used to evaluate the synthesis of CuO-NPs. The characterization of CuO-NPs was evaluated by Dynamic Light Scattering (DLS), Z-potential, Fourier Transform Infrared (FTIR), Transmission Electron Microscope (TEM) equipped with Energy Dispersive X-ray Spectroscopy (EDS) detector. Low Molecular Weight (LMW) and High Molecular Weight (HMW) protein fractions were able to synthesize spherical CuO-NPs. TEM images showed that the metallic core present in the observed samples ranged from 2 to 50 nm in diameter, with spherical nanostructures present in all containing protein samples. FTIR measurements showed functional groups from proteins having a pivotal role in the reduction and stabilization of the nanoparticles. The highly negative zeta potential average values from obtained nanoparticles suggest high stability, expanding the range of possible applications. This facile and novel protein-assisted method for the green synthesis of CuO-NPs may also provide a suitable tool to synthesize other nanoparticles that have different application areas.

Synthesis of High Concentration Cuprous Oxide Nanoparticles by Modified Polyol Process

2007 ◽  
Vol 124-126 ◽  
pp. 1185-1188 ◽  
Author(s):  
In Keun Shim ◽  
Young Il Lee ◽  
Kwi Jong Lee ◽  
Jae Woo Joung
Keyword(s):  
Cuprous Oxide ◽  
Polymer Concentration ◽  
Polyol Process ◽  
Oxide Nanoparticles ◽  
High Concentration ◽  
Cuprous Oxide Nanoparticles ◽  
Single Reaction

Cuprous oxide nanoparticles at high concentration (up to 0.3M) were successfully synthesized by modified polyol process. The redispersion stability could be controlled by optimizing various conditions like polymer concentration, temperature, reductant, and catalyst. Reductant and catalyst play a crucial rule in redispersion of cuprous nanoparticles. Under poor conditions, particles grow to larger sizes due to aggregation of nanoparticles. This modified polyol process allows monodispersed cuprous oxide to be obtained on gram scale in a single reaction and make possible a high synthetic yield of more than 80%.

scholarly journals CUPROUS OXIDE NANOPARTICLES: PREPARATION AND EVALUATION OF ANTIFOULING ACTIVITY

Química Nova ◽  
2019 ◽  
Author(s):  
Wei-Zhao Shi ◽  
Ying-Shuang Liang ◽  
Bingxing Lu ◽  
Mengting Chen ◽  
Yanwei Li ◽  
...  
Keyword(s):  
Cuprous Oxide ◽  
Oxide Nanoparticles ◽  
Antifouling Activity ◽  
Cuprous Oxide Nanoparticles ◽  
Preparation And Evaluation

scholarly journals Metal–metal bonding process using cuprous oxide nanoparticles

2016 ◽  
Vol 5 (4) ◽  
pp. 345-352 ◽  
Author(s):  
Yoshio Kobayashi ◽  
Takafumi Maeda ◽  
Yusuke Yasuda ◽  
Toshiaki Morita
Keyword(s):  
Cuprous Oxide ◽  
Bonding Process ◽  
Oxide Nanoparticles ◽  
Metal Bonding ◽  
Cuprous Oxide Nanoparticles ◽  
Metal Metal
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