Pillar[6]arene modified gold nanoparticles grafted on cellulose nanocrystals for electrochemical detection of bisphenol A

2021 ◽  
Author(s):  
Xiaoping Tan ◽  
Hongxing Yang ◽  
Xin Ran ◽  
Zhi Li ◽  
Lianpeng Zhang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Molecular Recognition ◽  
Bisphenol A ◽  
Gold Nanoparticle ◽  
Electrochemical Detection ◽  
Cellulose Nanocrystals ◽  
Electrocatalytic Activity

In this work, a macrocyclic cationic pillar[6]arene (CP6)-modified gold nanoparticle (CP6-AuNPs)-functionalized cellulose nanocrystals (CNCs) nanohybrid is prepared. The obtained CNCs@CP6-AuNPs nanohybrid exhibits high electrocatalytic activity and excellent selective molecular recognition...

In-situ growth of ZIF-8 on gold nanoparticles/magnetic carbon nanotubes for electrochemical detection of bisphenol A

2021 ◽  
Author(s):  
Hexiang Li ◽  
Fawei Zhu ◽  
Jun Xiang ◽  
Fangbin Wang ◽  
Qi Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Gold Nanoparticles ◽  
Bisphenol A ◽  
Electrochemical Detection ◽  
Metal Organic Frameworks ◽  
In Situ Growth ◽  
Metal Organic ◽  
Magnetic Carbon ◽  
Magnetic Carbon Nanotubes

We herein report a facile and scalable strategy for fabrication of the metal organic frameworks (MOFs) based composite by in-situ growing ZIF-8 on the gold nanoparticles (AuNPs) loaded magnetic carbon...

A novel gold nanoparticle decorated nanocrystalline zeolite based electrochemical sensor for the nanomolar simultaneous detection of cysteine and glutathione

RSC Advances ◽  
2015 ◽  
Vol 5 (115) ◽  
pp. 95028-95037 ◽  
Author(s):  
Balwinder Kaur ◽  
Rajendra Srivastava ◽  
Biswarup Satpati
Keyword(s):  
Gold Nanoparticles ◽  
Electrochemical Sensor ◽  
Gold Nanoparticle ◽  
Electrocatalytic Activity ◽  
Simultaneous Detection ◽  
Highly Dispersed ◽  
Dispersed Gold

High electrocatalytic activity of the sensor can be attributed to the highly dispersed gold nanoparticles on the nanocrystalline zeolite matrix.

Promising biomass-derived activated carbon and gold nanoparticle nanocomposites as a novel electrode material for electrochemical detection of rutin

RSC Advances ◽  
2016 ◽  
Vol 6 (93) ◽  
pp. 90446-90454 ◽  
Author(s):  
Pengfei Pang ◽  
Fuqing Yan ◽  
Meng Chen ◽  
Haiyan Li ◽  
Yanli Zhang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Activated Carbon ◽  
Electrochemical Sensor ◽  
Gold Nanoparticle ◽  
Electrochemical Detection ◽  
Glassy Carbon ◽  
Electrode Material ◽  
Carbon Electrode ◽  
Peanut Shell ◽  
Modified Glassy Carbon Electrode

A novel electrochemical sensor for rutin was developed based on peanut shell-derived activated carbon and gold nanoparticles composite modified glassy carbon electrode.

Interference of Gold Nanoparticles with In vitro Endotoxin Detection Assays

2020 ◽  
Vol 16 (2) ◽  
pp. 204-213 ◽  
Author(s):  
Melissa A. Vetten ◽  
Mary Gulumian
Keyword(s):  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Surface Reactivity ◽  
In Vitro Assays ◽  
Limulus Amebocyte Lysate ◽  
Chromogenic Assay ◽  
Nanoparticle Suspensions ◽  
Endotoxin Contamination ◽  
Factor C

Background: Endotoxin-free engineered nanoparticle suspensions are imperative for their successful applications in the field of nanomedicine as well as in the investigations in their toxicity. Gold nanoparticles are known to interfere with various in vitro assays due to their optical properties and potential for surface reactivity. In vitro endotoxin testing assays are known to be susceptible to interference caused by the sample being tested. Objective: This study aimed to identify a preferred assay for the testing of endotoxin contamination in gold nanoparticle suspensions. Methods: The interference by gold nanoparticles on three assays namely, the commonly used limulus amebocyte lysate chromogenic assay, the limulus amebocyte lysate gel-clot method, and the less common recombinant Factor C (rFC) assay, was tested. Results: Possible interference could be observed with all three assays. The interference with the absorbance- based chromogenic assay could not be overcome by dilution; whilst the qualitative nature of the gel-clot assay excluded the possibility of distinguishing between a false positive result due to enhancement of the sensitivity of the assay, and genuine endotoxin contamination. However, interference with the rFC assay was easily overcome through dilution. Conclusion: The rFC assay is recommended as an option for endotoxin contamination detection in gold nanoparticle suspensions.

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