scholarly journals Monitoring of Anthracene Using Nanoscale Au–Cu Bimetallic Alloy Nanoparticles Synthesized with Various Compositions

ACS Omega ◽  
2020 ◽  
Vol 5 (35) ◽  
pp. 22494-22501
Author(s):  
Latif-ur-Rahman ◽  
Afzal Shah ◽  
Changseok Han ◽  
Abdul Khaliq Jan
Keyword(s):  
Alloy Nanoparticles ◽  
Bimetallic Alloy

Insight into the binding and conformational changes of hemoglobin/lysozyme with bimetallic alloy nanoparticles using various spectroscopic approaches

2020 ◽  
Vol 300 ◽  
pp. 111747
Author(s):  
Krishnamoorthy Shanmugaraj ◽  
Arumugam Selva Sharma ◽  
Thangarasu Sasikumar ◽  
Ramalinga Viswanathan Mangalaraja ◽  
Malaichamy Ilanchelian
Keyword(s):  
Conformational Changes ◽  
Alloy Nanoparticles ◽  
Bimetallic Alloy ◽  
Insight Into

Synergism of ultrafine RuCo alloy nanoparticles on graphite carbon nitride for efficient ammonia borane hydrolysis

2021 ◽  
Author(s):  
Yating He ◽  
Ziqian Wang ◽  
Mingyue Mao ◽  
Qianggen Li ◽  
Guangyin Fan
Keyword(s):  
Hydrogen Evolution ◽  
Carbon Nitride ◽  
Ammonia Borane ◽  
Alloy Nanoparticles ◽  
Bimetallic Alloy ◽  
Catalytic Sites

Ru-based bimetallic alloy nanoparticles (NPs) have been demonstrated as efficiently catalytic sites for hydrogen evolution from ammonia borane (AB) hydrolysis, but their facile syntheses with ultrafine sizes and superior activity...

scholarly journals Antibacterial and Immunomodulatory Potentials of Biosynthesized Ag, Au, Ag-Au Bimetallic Alloy Nanoparticles Using the Asparagus racemosus Root Extract

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2453
Author(s):  
Musarat Amina ◽  
Nawal M. Al Musayeib ◽  
Nawal A. Alarfaj ◽  
Maha F. El-Tohamy ◽  
Gadah A. Al-Hamoud
Keyword(s):  
Noble Metals ◽  
Solid Phase ◽  
Sandwich Elisa ◽  
Root Extract ◽  
Asparagus Racemosus ◽  
Alloy Nanoparticles ◽  
Bacterial Strains ◽  
Microwave Assisted ◽  
Bimetallic Alloy ◽  
Cytokine Levels

Two noble metals, such as silver and gold alloy nanoparticles, were successfully synthesized by the microwave assisted method in the presence of the Asparagus racemosus root extract and were used as an antibacterial and immunomodulatory agent. The nanostuctures of the synthesized nanoparticles were confirmed by various spectroscopic and microscopic techniques. The UV-vis spectrum exhibits a distinct absorption peak at 483 nm for the bimetallic alloy nanoparticles. The microscopic analysis revealed the spherical shaped morphology of the biosynthesized nanoparticles with a particle size of 10–50 nm. The antibacterial potential of the green synthesized single metal (AgNPs and AuNPs) and bimetallic alloy nanoparticles was tested against five bacterial strains. The bimetallic alloy nanoparticles displayed the highest zone of inhibition against P. aeurgnosia and S.aureus strains when compared to single metal nanoparticles and plant extract. In addition, the inmmunomodulatory potential of the root extract of A. racemosus, AgNPs, AuNPs, and Ag-Au alloy NPs is achieved by measuring the cytokine levels in macrophages (IL-1β, IL-6, and TNF-α) and NK cells (IFN-γ) of NK92 and THP1 cells using the solid phase sandwich ELISA technique. The results showed that the root extract of A. racemosus, AgNPs, and AuNPs can reduce the pro-inflammatory cytokine levels in the macrophages cells, while Ag-Au alloy NPs can reduce cytokine responses in NK92 cells. Overall, this study shows that the microwave assisted biogenic synthesized bimetallic nanoalloy nanoparticles could be further explored for the development of antibacterial and anti-inflammatory therapies.

Ammonia synthesis over Co–Mo alloy nanoparticle catalyst prepared via sodium naphthalenide-driven reduction

2016 ◽  
Vol 52 (100) ◽  
pp. 14369-14372 ◽  
Author(s):  
Yuki Tsuji ◽  
Masaaki Kitano ◽  
Kazuhisa Kishida ◽  
Masato Sasase ◽  
Toshiharu Yokoyama ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Ammonia Synthesis ◽  
Alloy Nanoparticles ◽  
Bimetallic Alloy ◽  
Sodium Naphthalenide ◽  
Nanoparticle Catalyst

Co–Mo bimetallic alloy nanoparticles immobilized on CeO2 prepared via sodium naphthalenide-driven reduction exhibit efficient and stable catalytic activity for ammonia synthesis.

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