scholarly journals Inorganic Nanozymes: Prospects for Disease Treatments and Detection Applications

2021 ◽  
Vol 9 ◽  
Author(s):  
Peng Wang ◽  
Dongyu Min ◽  
Guoyou Chen ◽  
Minghui Li ◽  
Liquan Tong ◽  
...  
Keyword(s):  
Surface Modification ◽  
Catalytic Activity ◽  
Metal Oxide ◽  
Noble Metal ◽  
Future Development ◽  
Size Structure ◽  
Tumor Therapy ◽  
High Catalytic Activity ◽  
Structure Surface ◽  
Catalytic Mechanisms

In recent years, with the development of nanomaterials, a slice of nanomaterials has been demonstrated to possess high catalytic activity similar to natural enzymes and counter the dilemmas including easy inactivation and low yield natural of enzymes, which are labeled as nanozymes. The catalytic activity of nanozymes could be easily regulated by size, structure, surface modification and other factors. In comparison with natural enzymes, nanozymes featured with a more stable structure, economical preparation and preservation, diversity of functions and adjustable catalytic activity, thus becoming the potentially ideal substitute for natural enzymes. Generally, the are mainly three types containing metal oxide nanozymes, noble metal nanozymes and carbon-based nanozymes, owing various applications in biomedical, energy and environmental fields. In this review, to summarize the recent representative applications of nanozymes, and potentially explore the scientific problems in this field at the same time, we are going to discuss the catalytic mechanisms of diverse nanozymes, with the emphasis on their applications in the fields of tumor therapy, anti-inflammatory and biosensing, hoping to help and guide the future development of nanozymes.

scholarly journals Surface modification of plasmonic noble metal–metal oxide core–shell nanoparticles

2019 ◽  
Vol 1 (12) ◽  
pp. 4578-4591 ◽  
Author(s):  
Somayeh Talebzadeh ◽  
Clémence Queffélec ◽  
D. Andrew Knight
Keyword(s):  
Surface Modification ◽  
Metal Oxide ◽  
Noble Metal ◽  
Molecular Ions ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Metal Metal ◽  
Comprehensive Survey ◽  
Core Shell Nanoparticles

A comprehensive survey on methods for surface modification of noble metal–metal oxide core–shell nanoparticles is presented and highlights various strategies for binding of molecules and molecular ions to core–shell nanoparticles.

Noble-metal-free NiFe nanoparticles immobilized on nano CeZrO2 solid solutions for highly efficient hydrogen production from hydrous hydrazine

2019 ◽  
Vol 3 (11) ◽  
pp. 3071-3077 ◽  
Author(s):  
Hongtao Zou ◽  
Qilu Yao ◽  
Meiling Huang ◽  
Meihua Zhu ◽  
Fei Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Production ◽  
Noble Metal ◽  
Solid Solutions ◽  
Reduction Method ◽  
Hydrogen Generation ◽  
High Catalytic Activity ◽  
Metal Free ◽  
Highly Efficient ◽  
Hydrazine Solution

Noble-metal-free NiFe nanoparticles were successfully immobilized on nano CeZrO2 solid solutions by a simple impregnation–reduction method, exhibiting a high catalytic activity and 100% H2 selectivity for hydrogen generation from hydrazine solution.

Hollow Ag/carbon microporous spheres with high catalytic activity based on a bio-inspiration polydopamine reaction platform

RSC Advances ◽  
2015 ◽  
Vol 5 (110) ◽  
pp. 91056-91061 ◽  
Author(s):  
Qian Zhang ◽  
Chen Zhou ◽  
Aisheng Huang
Keyword(s):  
Catalytic Activity ◽  
Noble Metal ◽  
Metal Catalysts ◽  
Catalytic Reactions ◽  
High Catalytic Activity ◽  
Noble Metal Catalysts

Based on polydopamine reaction platform, hollow Ag/carbon microporous spheres with high catalytic activity were prepared through a template-assisted method, which is promising to replace other noble metal catalysts in metal catalytic reactions.

One-step synthesis of noble metal/oxide nanocomposites with tunable size of noble metal particles and their size-dependent catalytic activity

RSC Advances ◽  
2014 ◽  
Vol 4 (58) ◽  
pp. 30624-30629 ◽  
Author(s):  
Jie Liu ◽  
Wei Wang ◽  
Tong Shen ◽  
Zhiwei Zhao ◽  
Hui Feng ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Metal Oxide ◽  
Noble Metal ◽  
Metal Particles ◽  
Size Dependent ◽  
One Step

A general one-step synthesis of noble metal/oxide nanocomposites with tunable size of noble metal particles and size-dependent catalytic activity.

scholarly journals High catalytic activity of Au/CeOx/TiO2(110) controlled by the nature of the mixed-metal oxide at the nanometer level

2009 ◽  
Vol 106 (13) ◽  
pp. 4975-4980 ◽  
Author(s):  
J. B. Park ◽  
J. Graciani ◽  
J. Evans ◽  
D. Stacchiola ◽  
S. Ma ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Metal Oxide ◽  
Mixed Metal Oxide ◽  
High Catalytic Activity ◽  
Mixed Metal

2D ultrathin surfactant-encapsulating polyoxometalate assemblies as carriers for monodispersing noble-metal nanoparticles with high catalytic activity and stability

2021 ◽  
Author(s):  
Yang-Guang Li ◽  
Xing-Yu Ji ◽  
Feiyang Yu ◽  
Yingqi Li ◽  
Hao-Tian Zhu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Metal Nanoparticles ◽  
Uniform Distribution ◽  
Noble Metal ◽  
Environmental Governance ◽  
Noble Metal Nanoparticles ◽  
High Catalytic Activity ◽  
Binding Force ◽  
Strong Binding

Noble-metal nanoparticles (NMNPs) with excellent catalytic activity and stability play an important role in the field of environmental governance. Uniform distribution and strong binding force with carriers of noble-metal nanoparticles...

Synthesis and Electrocatalytic Performance of Ultrathin Noble Metal Nanosheets

CrystEngComm ◽  
2022 ◽  
Author(s):  
Dolong Zhu ◽  
haidong Zhao ◽  
Bin Wang ◽  
Shengchun Yang
Keyword(s):  
Catalytic Activity ◽  
Fuel Cells ◽  
Noble Metal ◽  
Chemical Stability ◽  
Biomedical Applications ◽  
High Catalytic Activity ◽  
Electrocatalytic Performance ◽  
Metal Nanomaterials

Noble metal nanomaterials are widely used in various fields such as catalysis, fuel cells, and biomedical applications due to their high catalytic activity, chemical stability, and biocompatibility. The performance of...

Phase-controlled synthesis of Ni nanocrystals with high catalytic activity in 4-nitrophenol reduction

2020 ◽  
Vol 8 (42) ◽  
pp. 22143-22154
Author(s):  
Jiahao Zhuang ◽  
Xianglin Liu ◽  
Yongjun Ji ◽  
Fangna Gu ◽  
Jing Xu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Noble Metal ◽  
Formation Mechanism ◽  
Metal Catalysts ◽  
High Catalytic Activity ◽  
Controlled Synthesis ◽  
Noble Metal Catalysts ◽  
Nitrophenol Reduction

The phase-controlled synthesis and formation mechanism of Ni nanocrystals with hcp and fcc phases are investigated and discussed, while hcp Ni shows comparable catalytic activity with the best noble metal catalysts for reduction of 4-nitrophenol.

scholarly journals Improved Suzuki–Miyaura reaction conversion efficiency using magnetic nanoparticles and inductive heating

2022 ◽  
Author(s):  
Alejandro Villacampa ◽  
Luis Duque ◽  
Olga Juanes ◽  
Francisco Javier Palomares ◽  
Pilar Herrasti ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Catalytic Activity ◽  
Magnetic Nanoparticles ◽  
Size Structure ◽  
Local Heating ◽  
Inductive Heating ◽  
High Catalytic Activity ◽  
Coupling Reactions ◽  
X Ray ◽  
Substrate Conversion

AbstractThe use of magnetic nanoparticles in C–C coupling reactions enables the facile recovery of the catalyst under environmentally friendly conditions. Herein, the synthesis of Pd/Fe@Fe3O4 nanoparticles by the reduction of Pd2+ and oxidation of Fe on the surface of preformed Fe@Fe3O4 is reported. The nanoparticles were characterized using a variety of analytical techniques (transmission electron microscopy, Mössbauer spectroscopy, X-ray photoelectron spectroscopy, and X-ray diffraction) to determine their size, structure, and chemical composition. The catalytic efficiency of these nanoparticles in classical Suzuki–Miyaura coupling reactions was investigated. The nanoparticles achieved high catalytic activity with the application of local heating by an alternating magnetic field. An investigation was conducted at identical temperatures to compare global heating with the application of an external magnetic field; magnetic heating demonstrated excellent substrate conversion in lesser time and at a lower temperature. The catalyst could also be recycled and reused three times, with ~ 30% decrease in the substrate conversion, which is most likely due to the agglomeration of the Pd nanoparticles or poisoning of the Pd catalyst. This approach, which takes advantage of the catalytic activity and magnetic susceptibility of magnetic nanoparticles, can be applied to several organic transformations to improve their efficiency. Graphical abstract

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