Nanomaterial/nano-based sensors for the halal industries
During the past decade, there have been numerous developments and improvements in electrochemical sensors for applications in biomedicine, water-quality monitoring, food technology, and agriculture, to name a few. Especially for the halal industry, these biosensors can provide a fast and convenient...
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| Format: | Conference or Workshop Item |
| Language: | English English English |
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2017
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| Online Access: | http://irep.iium.edu.my/62167/ http://irep.iium.edu.my/62167/ http://irep.iium.edu.my/62167/25/62167-program.pdf http://irep.iium.edu.my/62167/1/Halal%20Thailand%20Nanomaterial-based%20Sensors%20for%20the%20Halal%20Industries%20Dr%20Amani%20ver%201.pdf http://irep.iium.edu.my/62167/4/Halal%20Thailand%202017%20Abstract.pdf |
| Summary: | During the past decade, there have been numerous developments and improvements in electrochemical sensors for applications in biomedicine, water-quality monitoring, food technology, and agriculture, to name a few. Especially for the halal industry, these biosensors can provide a fast and convenient analytical method of halal verification for the food industry as well as ensuring food safety and quality. For electrochemical sensors to be effective as an analytical tool, improvements are made in the areas of recognition, transduction, and software and hardware components. In terms of transduction, most electrochemical sensors suffer from low sensitivity and detection limit, limited working lifetime, and poor reliability, especially with prolonged measurements in sample solutions, limiting their use in industry. To improve sensitivity and detection limit, many researchers focus on improving biosensor transduction by incorporating carbon-based nanomaterials such as graphene and carbon nanotubes with functional groups for efficient biomolecule immobilization, along with noble metal such as gold for improved electrocatalytic activity. To further enable sensors to be used for industry applications, a conductive polymer such as poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) was used in our research along with nanomaterials to further enhance lifetime and sensor reliability. Electropolymerized PEDOT:PSS on platinum electrodes has been shown to have excellent redox current, stable charge-discharge cycle capability, and good mechanical strength, even with prolonged storage in aqueous media, in comparison to drop-casted ones. The robustness of electrochemical sensors with a electropolymerized PEDOT:PSS-based transducer will be discussed with regard to long-term monitoring use that can be useful for the halal industry and other applications. |
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