construction strategy
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Dual enzyme-mimic nanozyme based on single-atom construction strategy for photothermal-augmented nanocatalytic therapy in the second near-infrared biowindow

Biomaterials ◽  
2021 ◽  
pp. 121325
Author(s):  
Yutian Su ◽  
Fan Wu ◽  
Qiuxian Song ◽  
Mengjie Wu ◽  
Mohsen Mohammadniaei ◽  
...  
Keyword(s):  
Near Infrared ◽  
Enzyme Mimic ◽  
Single Atom ◽  
Construction Strategy

scholarly journals A Novel Photoelectrochemical Aptamer Sensor Based on CdTe Quantum Dots Enhancement and Exonuclease I-Assisted Signal Amplification for Listeria monocytogenes Detection

Foods ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2896
Author(s):  
Liangliang Zhu ◽  
Hongshun Hao ◽  
Chao Ding ◽  
Hanwei Gan ◽  
Shuting Jiang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Listeria Monocytogenes ◽  
Signal Amplification ◽  
High Sensitivity ◽  
Cdte Quantum Dots ◽  
Exonuclease I ◽  
Photosensitive Material ◽  
Construction Strategy ◽  
Aptamer Sensor ◽  
High Sensitivity Detection

To achieve the rapid detection of Listeria monocytogenes, this study used aptamers for the original identification and built a photoelectrochemical aptamer sensor using exonuclease-assisted amplification. Tungsten trioxide (WO3) was used as a photosensitive material, was modified with gold nanoparticles to immobilize complementary DNA, and amplified the signal by means of the sensitization effect of CdTe quantum dots and the shearing effect of Exonuclease I (Exo I) to achieve high-sensitivity detection. This strategy had a detection limit of 45 CFU/mL in the concentration range of 1.3 × 101–1.3 × 107 CFU/mL. The construction strategy provides a new way to detect Listeria monocytogenes.

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