Studies on Synthesis of Electrochemically Exfoliated Functionalized Graphene and Polylactic Acid/Ferric Phytate Functionalized Graphene Nanocomposites as New Fire Hazard Suppression Materials

2016 ◽  
Vol 8 (38) ◽  
pp. 25552-25562 ◽  
Author(s):  
Xiaming Feng ◽  
Xin Wang ◽  
Wei Cai ◽  
Shuilai Qiu ◽  
Yuan Hu ◽  
...  
Keyword(s):  
Polylactic Acid ◽  
Fire Hazard ◽  
Functionalized Graphene ◽  
Graphene Nanocomposites

scholarly journals A highly sensitive biosensor based on methacrylated graphene oxide-grafted polyaniline for ascorbic acid determination

2020 ◽  
Vol 9 (1) ◽  
pp. 760-767 ◽  
Author(s):  
Seyed Morteza Naghib ◽  
Farahnaz Behzad ◽  
Mehdi Rahmanian ◽  
Yasser Zare ◽  
Kyong Yop Rhee
Keyword(s):  
Ascorbic Acid ◽  
Graphene Oxide ◽  
Current Response ◽  
Functionalized Graphene ◽  
Serum Samples ◽  
Promising Candidate ◽  
Graphene Nanocomposites ◽  
Selective Determination ◽  
Highly Sensitive

AbstractFunctionalized graphene-based nanocomposites have opened new windows to address some challenges for increasing the sensitivity, accuracy and functionality of biosensors. Polyaniline (PANI) is one of the most potentially promising and technologically important conducting polymers, which brings together the electrical features of metals with intriguing properties of plastics including facile processing and controllable chemical and physical properties. PANI/graphene nanocomposites have attracted intense interest in various fields due to unique physicochemical properties including high conductivity, facile preparation and intriguing redox behavior. In this article, a functionalized graphene-grafted nanostructured PANI nanocomposite was applied for determining the ascorbic acid (AA) level. A significant current response was observed after treating the electrode surface with methacrylated graphene oxide (MeGO)/PANI nanocomposite. The amperometric responses showed a robust linear range of 8–5,000 µM and detection limit of 2 µM (N = 5). Excellent sensor selectivity was demonstrated in the presence of electroactive components interfering species, commonly found in real serum samples. This sensor is a promising candidate for rapid and selective determination of AA.

Label-free aptamer biosensor for thrombin detection based on functionalized graphene nanocomposites

Talanta ◽  
2015 ◽  
Vol 141 ◽  
pp. 247-252 ◽  
Author(s):  
Qingqing Wang ◽  
Zhixue Zhou ◽  
Yanling Zhai ◽  
Lingling Zhang ◽  
Wei Hong ◽  
...  
Keyword(s):  
Functionalized Graphene ◽  
Label Free ◽  
Graphene Nanocomposites

Solution Casting of Polyvinyl Alcohol–Functionalized Graphene Nanocomposites

2019 ◽  
Vol 17 ◽  
pp. 640-645
Author(s):  
Y. Kamal ◽  
T. Li San ◽  
I. Zulhelmi ◽  
A. Abu Hannifa
Keyword(s):  
Polyvinyl Alcohol ◽  
Solution Casting ◽  
Functionalized Graphene ◽  
Graphene Nanocomposites

scholarly journals Calix[n]arene/Pillar[n]arene-Functionalized Graphene Nanocomposites and Their Applications

2020 ◽  
Vol 8 ◽  
Author(s):  
Qunpeng Duan ◽  
Lijie Wang ◽  
Fei Wang ◽  
Hongsong Zhang ◽  
Kui Lu
Keyword(s):  
Functionalized Graphene ◽  
Graphene Nanocomposites

scholarly journals Polyethylene glycol grafted with carboxylated graphene oxide as a novel interface modifier for polylactic acid/graphene nanocomposites

2020 ◽  
Vol 7 (7) ◽  
pp. 192154
Author(s):  
Mingjun Niu ◽  
Hao Wang ◽  
Jing Li ◽  
Hongyan Chen ◽  
Lin Li ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Graphene Oxide ◽  
Polyethylene Glycol ◽  
Polylactic Acid ◽  
Melt Blending ◽  
Elongation At Break ◽  
Graphene Nanocomposites ◽  
Practical Strategy ◽  
Blending Method ◽  
Synthesis Procedure

Strength and toughness are both of great importance for the application of polylactic acid (PLA). Unfortunately, these two properties are often contradictory. In this work, an effective and practical strategy is proposed by using carboxylated graphene oxide (GC) grafted with polyethylene glycol (PEG), i.e. GC-g-PEG. The synthesis procedure of GC-g-PEG is firstly optimized. Then, a series of PLA nanocomposites were prepared by the melt blending method via masterbatch. In comparison to that achieved over pure PLA, these nanocomposites are of higher crystallinity, thermal stability and mechanical strength. This is mainly attributed to well-tailored interface and good dispersion. Especially, while retaining the tensile strength of the original PLA, the elongation at break increases by seven times by adding 0.3 wt% GC-g-PEG.

scholarly journals Nanocomposites of Graphene with Ferrocene or Hemin: Preparation and Application in Electrochemical Sensing

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Ning Xia ◽  
Lin Liu ◽  
Zhifang Sun ◽  
Binbin Zhou
Keyword(s):  
Electrochemical Sensing ◽  
Electrochemical Energy Storage ◽  
Electrochemical Performances ◽  
Functionalized Graphene ◽  
Graphene Nanocomposites ◽  
Redox States ◽  
Electroactive Materials ◽  
Organic Complexes ◽  
Physicochemical And Structural Properties ◽  
First Time

Graphene has sparked tremendous interests across many fields such as biosensors, electrochemical energy storage, and electronics due to its extraordinary physicochemical and structural properties. The redox mediator-functionalized graphene composites may obtain highly electroactive materials with better conductivity, dispersion, and compatibility. Ferrocene and hemin, two iron-organic complexes, are the well-known mediators in view of their various properties, including reversibility, regeneration at low potential, and generation of stable redox states. Recently, it has been demonstrated that the use of ferrocene or hemin coupled with graphene can further improve the electrochemical performances of the developed sensors. In this contribution, we, for the first time, reviewed the preparation and applications of ferrocene/graphene and hemin/graphene nanocomposites in electrochemical sensing.

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