Nanocomposites in Electrochemical Sensors

ISBN-13: 9781138626775 / Angielski / Twarda / 2016 / 136 str.

Samira Bagheri;Iraj Sadegh Amiri;Amin Termeh Yousefi

Opis

Nanotechnology has become one of the most important fields in science. Nanoparticles exhibit unique chemical, physical and electronic properties that are different from those of bulk materials, due to their small size and better architecture. Nanoparticles can be used to construct novel sensing devices; in particular electrochemical sensors. Electrochemical detection is highly attractive for the monitoring of glucose, cancer cells, cholesterol and infectious diseases. The composite film was prepared by using the synthesized zinc oxide, multi walled carbon nanotube and polycaprolactone on glassy carbon electrode (ZnO/MWCNT/PCL/GCE). The porous ZnO/MWCNT/PCL film was used as a supporting matrix to immobilize the Co(II) ions. The immobilized Co(II) ion exhibits an excellent electrocatalytic activity to glucose oxidation. The sensor responded linearly to glucose in the concentration of 5.0x10 ⁵ - 6.0x10 ³M with the detection limit of 1.6x10 ⁵ M at 3 using cyclic voltammetry. In addition, the composite film was prepared by synthesized TiO₂-NPs and carbon nanotube on glassy carbon electrode (TiO₂-MWCNT/GCE). The TiO₂-MWCNT/GCE responded linearly to L-tryptophan in the concentration range of 1.0x10 ⁶-1.5x10 ⁴ M with the detection limit of 5.2x10 ⁷ M at 3 using amperometric measurement. Unique nanocomposite-based films proposed in this book open new doors to the design and fabrication of high-performance electrochemical sensors."

Spis treści

Introduction
Literature Review
Experimental procedures and Materials
Fabrication of Cobalt(II) Immobilized ZnO/MWCNT/PCL Nanocomposite Film: Electrocatalytic Detection of Glucose
Synthesis and Characterization of Gelatin Stabilized Anatase Titanium Dioxide Nanoparticles via the Sol-Gel Method and its Applications for Sensitive Detection of L-Tryptophan
Fabrication of Ni(II)/PAN/MWCNT Nanocomposite Films Electrocatalytic Detection of Carbohydrates
Fabrication of Chitosan-Multi Walled Carbon Nanotube Nanocomposite Containing Ferri/Ferrocyanide: Applications for Simultaneous Detection of D-Penicillamine and L-Tryptophan
Conclusion

O autorze

Dr. Samira Bagheri is a senior lecturer in the Nanotechnology & Catalysis Research Centre, University of Malaya. She received her PhD (2013) from Nanotechnology & Catalysis Research Centre, University of Malaya. Samira’s main research interests are in the areas of carbon nanomaterials, such as carbon nanotubes, graphene oxide and graphene nanosheets, metal oxide nanocomposites advance smart nanohybrids, especially apply in electrochemical sensors, supercapacitors, fuel cells and environmental pollution management. Dr. I. S. Amiri, received his B. Sc (Hons, Applied Physics) from Public University of Oroumiyeh, Iran in 2001 and a gold medalist M. Sc. from University Technology Malaysia (UTM), in 2009. He was awarded a PhD degree in photonics in Jan 2014. He has published more than 280 journals/conferences and books in Optical Soliton Communications, Nano photonics, Nonlinear Fiber Optics, Quantum Cryptography, Optical Tweezers, Nanotechnology, Biomedical Physics and Biotechnology Engineering Dr. Amin Termeh Yousefi received his PhD (2015) from Malaysia-Japan International Institute of Technology , University Technology Malaysia . Dr. Amin joined to Kyushu Institute of Technology of Japan (2015) as a research fellow and his research interests are in the areas of carbon nanomaterials, such as carbon nanotubes (CNTs), graphene oxide and graphene nano-ribbon (GNR), carbon based biosensors, Electrochemical sensors, brain-like circuit based CNT-nanocomposite, CNTs based atomic-force microscopy tips, electronic tongue based biosensors, biological haptic finger via CNTs based nanocomposites, field-effect transistor based GNR, nanowire transistors, and brain like signals using CNTs-nanocomposites. Prof. Sharifah Bee Abd Hamid is the Director of Nanotechnology & Catalysis Research Centre (NANOCAT), a potential National HICOE and UM COE. She completed her DSc in catalysis from University of Namur, Belgium in 1993, whilst MSc in catalysis from UKM (Malaysia) in 1989, and BSc in chemistry from Ohio State University (USA) in 1982. She has unique experience gained from academia and industry. She is a world recognized and respected leader in catalyst and adsorbent with strong proven track record in catalyst and nanomaterial design, petroleum refining and petrochemical processes, oleochemicals, biomass and nanocarbon. She is also a recognized authority in mercury trapping media. Prof. Sharifah has held numerous positions in PETRONAS, Shell, Leverhulme Centre for Innovative Catalysis (United Kingdom), and since 2001 in University of Malaya. Her research interest is in catalysis and nanomaterial. She remains active in catalyst development based on metal oxides, carbon, HPA, Ionic Liquid. Besides petrochemical and environmental caalysis, she focuses her research in biorefining and solar refining with emphasis on technology and catalyst development of sustainable resources from biomass and water, and capitalizing from solar energy. The catalyst and nanomaterial find applications in sustainable energy and chemical synthesis, besides active in water environment mitigation.