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.

Green Synthesis and Characterization of Cuprous Oxide Nanoparticles Using Tea Extract

2019 ◽  
Author(s):  
Shaheen Pathan ◽  
Harsha Mishra ◽  
Sakina Kachwala ◽  
Shweta Nadar ◽  
Divya Marolikar Marolikar ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Cuprous Oxide ◽  
Synthesis And Characterization ◽  
Oxide Nanoparticles ◽  
Cuprous Oxide Nanoparticles ◽  
Tea Extract

Green Synthesis of Silver Nanoparticles Using Olden-landia corymbosa and Ocimum sanctum Leaf Aqueous Extract

2020 ◽  
Vol 13 (3) ◽  
pp. 4959-4964
Author(s):  
Prof.(Dr.) Sirshendu Chatterjee Chatterjee ◽  
Shaktijit Das ◽  
Moumita Saha ◽  
Pranabesh Ghosh ◽  
Titav Sengupta ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Green Synthesis ◽  
Aqueous Extract ◽  
Nano Particles ◽  
Bioactive Molecules ◽  
Primary Amines ◽  
Ocimum Sanctum ◽  
Leaf Aqueous Extract ◽  
Vis Spectroscopy ◽  
Ft Ir

The field of nanotechnology is the most renowned area of research in modern day science. One of the most convenient and comprehensive technique related to the synthesis of nanoparticles using plant extracts and their subsequent action. On the other hand, herbal medicines become an integral part of modern-day treatment strategy around the globe; combination of these two ways are widely accepted and beneficial due to its low cost, better societal recognition and less side effects. Phytochemical analysis revealed that leaf aqueous extract of two medicinal plants Oldenlandia corymbosa and Ocimum sanctum, harbours high concentration of antioxidants and bioactive molecules. Hence our present course of study aims at the green synthesis of silver nano-conjugates using Oldenlandia corymbosa and Ocimum sanctum leaf aqueous extracts. The synthesized nano-conjugates have undergone advanced chara-cterization techniques including UV-Vis Spectro-photometry, DLS, and FT-IR. The UV-Vis spectroscopy results showed single peak at 420 nm and 430 nm for Oldenlandia corymbosa and Ocimum sanctum nano-conjugates, respectively. The particle size for Oldenlandia corymbosa and Ocimum sanctum nano-particles are 21.04 nm and 24.36 nm, respectively as observed from the DLS data, and finally, the FT-IR data confirms the conjugation of bioactive molecules of the medicinal plants indicating that primary amines, secondary amines, alcohols, phenols, aldehydes, aliphatic amines, alkenes, functional groups of the bioactive molecules are responsible for the stability of prepared silver nano-conjugates

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 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.

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