scholarly journals Highly Sensitive Ascorbic Acid Sensor Based on Ionic Liquid Functionalized Graphene Oxide Nanocomposite

2019 ◽  
pp. 1670-1683 ◽  
Author(s):  
Chunli Xu ◽  
Keyword(s):  
Ascorbic Acid ◽  
Ionic Liquid ◽  
Graphene Oxide ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Highly Sensitive ◽  
Ascorbic Acid Sensor

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.

scholarly journals Ultrafast and Highly Sensitive Chemically Functionalized Graphene Oxide-Based Humidity Sensors: Harnessing Device Performances via the Supramolecular Approach

2020 ◽  
Vol 12 (39) ◽  
pp. 44017-44025
Author(s):  
Cosimo Anichini ◽  
Alessandro Aliprandi ◽  
Sai Manoj Gali ◽  
Fabiola Liscio ◽  
Vittorio Morandi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Functionalized Graphene ◽  
Humidity Sensors ◽  
Functionalized Graphene Oxide ◽  
Highly Sensitive

Cooperative chiral salen TiIV catalyst supported on ionic liquid-functionalized graphene oxide accelerates asymmetric sulfoxidation in water

2017 ◽  
Vol 7 (24) ◽  
pp. 5944-5952 ◽  
Author(s):  
Chen Xing ◽  
Jiang Deng ◽  
Rong Tan ◽  
Mengqiao Gao ◽  
Pengbo Hao ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Graphene Oxide ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Cooperative Catalysis

Multiple chiral salen TiIV complexes appended on an IL-functionalized GO surface reinforced intramolecular cooperative catalysis of asymmetric sulfoxidation in water.

Ionic liquid-functionalized graphene oxide as an efficient support for the chiral salen Mn(iii) complex in asymmetric epoxidation of unfunctionalized olefins

2015 ◽  
Vol 5 (4) ◽  
pp. 2092-2102 ◽  
Author(s):  
Weiguo Zheng ◽  
Rong Tan ◽  
Shenfu Yin ◽  
Yaoyao Zhang ◽  
Guangwu Zhao ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Graphene Oxide ◽  
Asymmetric Epoxidation ◽  
Reusable Catalyst ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Highly Efficient

Chiral salen Mn(iii) complex covalently grafted on IL-functionalized GO sheet, was a highly efficient, universal and reusable catalyst for asymmetric epoxidation of unfunctionalized olefins using aqueous NaOCl as an oxidant.

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