GoldMag nanocomposite-functionalized graphene sensing platform for one-step electrochemical immunoassay of alpha-fetoprotein

2011 ◽  
Vol 28 (1) ◽  
pp. 174-180 ◽  
Author(s):  
Bing Zhang ◽  
Dianping Tang ◽  
Bingqian Liu ◽  
Huafeng Chen ◽  
Yuling Cui ◽  
...  
Keyword(s):  
Alpha Fetoprotein ◽  
Electrochemical Immunoassay ◽  
Functionalized Graphene ◽  
Sensing Platform ◽  
One Step

One-step electrochemical immunoassay of biomarker based on nanogold-functionalized graphene sensing platform

2011 ◽  
Vol 3 (7) ◽  
pp. 1615 ◽  
Author(s):  
Huafeng Chen ◽  
Bing Zhang ◽  
Yuling Cui ◽  
Bingqian Liu ◽  
Guonan Chen ◽  
...  
Keyword(s):  
Electrochemical Immunoassay ◽  
Functionalized Graphene ◽  
Sensing Platform ◽  
One Step

scholarly journals One-Step Synthesis of Diamine-Functionalized Graphene Quantum Dots from Graphene Oxide and Their Chelating and Antioxidant Activities

Nanomaterials ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 104 ◽  
Author(s):  
Rabeb El-Hnayn ◽  
Laetitia Canabady-Rochelle ◽  
Christophe Desmarets ◽  
Lavinia Balan ◽  
Hervé Rinnert ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Colloidal Stability ◽  
Antioxidant Activities ◽  
Graphene Quantum Dots ◽  
Average Diameter ◽  
Functionalized Graphene ◽  
One Step ◽  
Low Cytotoxicity ◽  
Health Applications

2,2’-(Ethylenedioxy)bis(ethylamine)-functionalized graphene quantum dots (GQDs) were prepared under mild conditions from graphene oxide (GO) via oxidative fragmentation. The as-prepared GQDs have an average diameter of ca. 4 nm, possess good colloidal stability, and emit strong green-yellow light with a photoluminescence (PL) quantum yield of 22% upon excitation at 375 nm. We also demonstrated that the GQDs exhibit high photostability and the PL intensity is poorly affected while tuning the pH from 1 to 8. Finally, GQDs can be used to chelate Fe(II) and Cu(II) cations, scavenge radicals, and reduce Fe(III) into Fe(II). These chelating and reducing properties that associate to the low cytotoxicity of GQDs show that these nanoparticles are of high interest as antioxidants for health applications.

Graphdiyne-Based One-Step DNA Fluorescent Sensing Platform for the Detection of Mycobacterium tuberculosis and Its Drug-Resistant Genes

2019 ◽  
Vol 11 (39) ◽  
pp. 35622-35629 ◽  
Author(s):  
Fan Chang ◽  
Lijun Huang ◽  
Chaozhong Guo ◽  
Guoming Xie ◽  
Jiaqiang Li ◽  
...  
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Drug Resistant ◽  
Fluorescent Sensing ◽  
Resistant Genes ◽  
Sensing Platform ◽  
One Step

scholarly journals One-Step Preparation of Hyperbranched Polyether Functionalized Graphene Oxide for Improved Corrosion Resistance of Epoxy Coatings

Coatings ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 844 ◽  
Author(s):  
Xuepei Miao ◽  
An Xing ◽  
Lifan He ◽  
Yan Meng ◽  
Xiaoyu Li
Keyword(s):  
Corrosion Resistance ◽  
Graphene Oxide ◽  
Acid Resistance ◽  
Epoxy Coating ◽  
Functionalized Graphene ◽  
Step Method ◽  
Epoxy Coatings ◽  
Functionalized Graphene Oxide ◽  
One Step ◽  
Hyperbranched Polyether

In this paper, hyperbranched polyether functionalized graphene oxide (EHBPE-GO) was prepared by a facile one-step method. Fourier transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD), thermogravimetric analyzer (TGA), and trans-mission electron microscopy (TEM) results confirmed the formation of EHBPE-GO. Then, EHBPE-GO was cured with phenolic amides at room temperature to prepare epoxy coatings. The corrosion resistance of epoxy coatings was investigated systematically by using electrochemical and traditional immersion methods. Results show that a small amount of EHBPE-GO (8 wt % of Diglycidyl ether of bisphenol A (DGEBA)) in epoxy coating achieves 50% higher improvement in acid-resistance than unmodified neat DGEBA resin. For the nanocomposite epoxy coating, the superior acid-resistance is attributed to the increased crosslink density and the impermeable 2D structure of EHBPE-GO. This work provides a facile strategy to develop the effective improved corrosion resistance nanofiller for epoxy coating.

One-step sensitive thrombin detection based on a nanofibrous sensing platform

2019 ◽  
Vol 7 (34) ◽  
pp. 5161-5169 ◽  
Author(s):  
Xiaoling Li ◽  
Yuyang Wu ◽  
Jingjing Niu ◽  
Dagang Jiang ◽  
Dan Xiao ◽  
...  
Keyword(s):  
Nanofibrous Membrane ◽  
Fluorescent Detection ◽  
Sensing Platform ◽  
One Step ◽  
Testing Solution

By integration of a new PiDSD process, CHA amplification and ThT binding, one-step fluorescent detection of thrombin can be achieved by immersing a porous and 3-direction structural B-H2-functionalized nanofibrous membrane in a testing solution.

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