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Efficient capture, ...
Efficient capture, rapid killing and ultrasensitive detection of bacteria by a nano-decorated multi-functional electrode sensor
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- Wu, Runrun (författare)
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
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- Ma, Yue (författare)
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
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- Pan, Jianming (författare)
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
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- Lee, Shih-Hui (författare)
- Department of Chemistry, University of California Irvine, Irvine, CA 92697, USA
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- Liu, Jinxin (författare)
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
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- Zhu, Hengjia (författare)
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
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- Gu, Runxin (författare)
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
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- Shea, Kenneth J. (författare)
- Department of Chemistry, University of California Irvine, Irvine, CA 92697, USA
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- Pan, Guoqing (författare)
- Malmö universitet,Institutionen för biomedicinsk vetenskap (BMV),School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
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(creator_code:org_t)
- Elsevier, 2018
- 2018
- Engelska.
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Ingår i: Biosensors & bioelectronics. - : Elsevier. - 0956-5663 .- 1873-4235. ; 101, s. 52-59
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In this work, we demonstrated a nano-decorated porous impedance electrode sensor for efficient capture, rapid killing and ultrasensitive detection of bacteria. The multi-functional sensor was prepared by a facile sono-chemical method via in situ deposition of antibacterial prickly Zn-CuO nanoparticles and graphene oxide (GO) nanosheets on a Ni porous electrode. Due to the surface burr-like nanostructures, the nano-decorated impedance sensor exhibited very good bacterial-capture efficiency (70 - 80% in 20 min) even at a low concentration of 50 CFU mL(-1), rapid antibacterial rate (100% killing in 30 min) and high detection sensitivity (as low as 10 CFU mL(-1)). More importantly, the nano-decorated sensor has proven to be highly effective in quantitative detection of bacteria in a biological sample, for example, a rat blood sample spiked with E. coll. Despite the complexity of blood, the sensor still exhibited excellent detection precision within 30 min at bacteria concentrations ranging from 10 - 10(5) CFU mL(-1). The simplicity, rapidity, sensitivity, practicability and multifunctionality of this impedance sensor would greatly facilitate applications in portable medical devices for on-the-spot diagnosis and even the possibility for simultaneous therapy of diseases caused by bacterial infections.
Nyckelord
- Bacterial capture
- Bacteria detection
- Impedance sensor
- Antibacterial nanoparticles
- Prickly nanostructure
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