metal nanoparticles
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Biosensors ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 30
Author(s):  
Kameshpandian Paramasivam ◽  
Yuanzhao Shen ◽  
Jiasheng Yuan ◽  
Ibtesam Waheed ◽  
Chuanbin Mao ◽  
...  

Bacteriophages, abbreviated as “phages”, have been developed as emerging nanoprobes for the detection of a wide variety of biological species, such as biomarker molecules and pathogens. Nanosized phages can display a certain length of exogenous peptides of arbitrary sequence or single-chain variable fragments (scFv) of antibodies that specifically bind to the targets of interest, such as animal cells, bacteria, viruses, and protein molecules. Metal nanoparticles generally have unique plasmon resonance effects. Metal nanoparticles such as gold, silver, and magnetism are widely used in the field of visual detection. A phage can be assembled with metal nanoparticles to form an organic–inorganic hybrid probe due to its nanometer-scale size and excellent modifiability. Due to the unique plasmon resonance effect of this composite probe, this technology can be used to visually detect objects of interest under a dark-field microscope. In summary, this review summarizes the recent advances in the development of phage-based probes for ultra-sensitive detection of various bio-species, outlining the advantages and limitations of detection technology of phage-based assays, and highlighting the commonly used editing technologies of phage genomes such as homologous recombination and clustered regularly interspaced palindromic repeats/CRISPR-associated proteins system (CRISPR-Cas). Finally, we discuss the possible scenarios for clinical application of phage-probe-based detection methods.


Author(s):  
Amjad Islam Aqib ◽  
Iqra Muzammil ◽  
Saad Ahmad ◽  
Muhammad Luqman Sohail ◽  
Ahmad Ali ◽  
...  
Keyword(s):  

Author(s):  
Shan Dai ◽  
Kieu Phung Ngoc ◽  
Laurence Grimaud ◽  
Sanjun Zhang ◽  
Antoine Tissot ◽  
...  

Metal nanoparticles encased in a MOF shell have shown remarkable properties in catalysis due to potential synergistic effects. However, capping agents, commonly used to prepare these nanoparticles, lower their reactivity...


2022 ◽  
pp. 375-413
Author(s):  
Hanan B. Ahmed ◽  
Hossam E. Emam
Keyword(s):  

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