scholarly journals Recent Progress of Metal/Metal Oxide Nanoparticles for Asymmetric Hydrogenation and Transfer Hydrogenation

2014 ◽  
Vol 72 (7) ◽  
pp. 798 ◽  
Author(s):  
Yigang Ji ◽  
Lei Wu ◽  
Qinghua Fan
Keyword(s):  
Metal Oxide ◽  
Recent Progress ◽  
Metal Oxide Nanoparticles ◽  
Asymmetric Hydrogenation ◽  
Transfer Hydrogenation ◽  
Oxide Nanoparticles ◽  
Metal Metal

scholarly journals The application prospect of metal/metal oxide nanoparticles in the treatment of osteoarthritis

2021 ◽  
Vol 394 (10) ◽  
pp. 1991-2002
Author(s):  
Junchao Luo ◽  
Yin Zhang ◽  
Senbo Zhu ◽  
Yu Tong ◽  
Lichen Ji ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Metal Oxide Nanoparticles ◽  
Biological Response ◽  
Cell Uptake ◽  
Oxide Nanoparticles ◽  
Therapeutic Effects ◽  
Superoxide Anions ◽  
Metal Metal ◽  
Cartilage Wear

AbstractThe current understanding of osteoarthritis is developing from a mechanical disease caused by cartilage wear to a complex biological response involving inflammation, oxidative stress and other aspects. Nanoparticles are widely used in drug delivery due to its good stability in vivo and cell uptake efficiency. In addition to the above advantages, metal/metal oxide NPs, such as cerium oxide and manganese dioxide, can also simulate the activity of antioxidant enzymes and catalyze the degradation of superoxide anions and hydrogen peroxide. Degrading of metal/metal oxide nanoparticles releases metal ions, which may slow down the progression of osteoarthritis by inhibiting inflammation, promoting cartilage repair and inhibiting cartilage ossification. In present review, we focused on recent research works concerning osteoarthritis treating with metal/metal oxide nanoparticles, and introduced some potential nanoparticles that may have therapeutic effects.

scholarly journals Flower-Based Green Synthesis of Metallic Nanoparticles: Applications beyond Fragrance

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 766 ◽  
Author(s):  
Harsh Kumar ◽  
Kanchan Bhardwaj ◽  
Kamil Kuča ◽  
Anu Kalia ◽  
Eugenie Nepovimova ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Metal Oxide ◽  
Green Synthesis ◽  
Metallic Nanoparticles ◽  
Metal Oxide Nanoparticles ◽  
Secondary Compounds ◽  
Oxide Nanoparticles ◽  
Gold And Silver Nanoparticles ◽  
Gold Silver ◽  
Metal Metal

Green synthesis has gained wide attention as a sustainable, reliable, and eco-friendly approach to the synthesis of a variety of nanomaterials, including hybrid materials, metal/metal oxide nanoparticles, and bioinspired materials. Plant flowers contain diverse secondary compounds, including pigments, volatile substances contributing to fragrance, and other phenolics that have a profound ethnobotanical relevance, particularly in relation to the curing of diseases by ‘Pushpa Ayurveda’ or floral therapy. These compounds can be utilized as potent reducing agents for the synthesis of a variety of metal/metal oxide nanoparticles (NPs), such as gold, silver, copper, zinc, iron, and cadmium. Phytochemicals from flowers can act both as reducing and stabilizing agents, besides having a role as precursor molecules for the formation of NPs. Furthermore, the synthesis is mostly performed at ambient room temperatures and is eco-friendly, as no toxic derivatives are formed. The NPs obtained exhibit unique and diverse properties, which can be harnessed for a variety of applications in different fields. This review reports the use of a variety of flower extracts for the green synthesis of several types of metallic nanoparticles and their applications. This review shows that flower extract was mainly used to design gold and silver nanoparticles, while other metals and metal oxides were less explored in relation to this synthesis. Flower-derived silver nanoparticles show good antibacterial, antioxidant, and insecticidal activities and can be used in different applications.

Metal oxide-nanoparticles and liquid crystal composites: A review of recent progress

2020 ◽  
Vol 297 ◽  
pp. 112052 ◽  
Author(s):  
Jai Prakash ◽  
Sidra Khan ◽  
Shikha Chauhan ◽  
A.M. Biradar
Keyword(s):  
Liquid Crystal ◽  
Metal Oxide ◽  
Recent Progress ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles

scholarly journals Mapping 2D- and 3D-distributions of metal/metal oxide nanoparticles within cleared human ex vivo skin tissues

NanoImpact ◽  
2020 ◽  
Vol 17 ◽  
pp. 100208 ◽  
Author(s):  
George J. Touloumes ◽  
Herdeline Ann M. Ardoña ◽  
Evan K. Casalino ◽  
John F. Zimmerman ◽  
Christophe O. Chantre ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Ex Vivo ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Metal Metal ◽  
2D And 3D
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