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Polysaccharides as the Sensing Material for Metal Ion Detection-Based Optical Sensor Applications

Photonics Technology Laboratory, Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM Bangi 43600, Selangor, Malaysia
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Sensors 2020, 20(14), 3924; https://doi.org/10.3390/s20143924
Received: 25 April 2020 / Revised: 2 June 2020 / Accepted: 15 June 2020 / Published: 15 July 2020
(This article belongs to the Special Issue Shaping and Designing Polymers for Sensor Development)
The incorporation of a proper sensing material towards the construction of high selectivity optical sensing devices is vital. Polysaccharides, such as chitosan and carrageenan, are among the bio-based sensing materials that are extensively employed due to their remarkable physicochemical attributes. This paper highlights the critical aspects of the design of suitable polysaccharides for the recognition of specific analytes through physical and chemical modifications of polysaccharide structure. Such modifications lead to the enhancement of physicochemical properties of polysaccharides and optical sensor performance. Chitosan and carrageenan are two materials that possess excellent features which are capable of sensing target analytes via various interactions. The interaction between polysaccharides and analytes is dependent on the availability of functional groups in their structure. The integration of polysaccharides with various optical sensing techniques further improves optical sensor performance. The application of polysaccharides as sensing materials in various optical sensing techniques is also highlighted, particularly for metal ion sensing. View Full-Text
Keywords: polysaccharides; chitosan; carrageenan; sensing interaction; optical sensors polysaccharides; chitosan; carrageenan; sensing interaction; optical sensors
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MDPI and ACS Style

Azeman, N.H.; Arsad, N.; A Bakar, A.A. Polysaccharides as the Sensing Material for Metal Ion Detection-Based Optical Sensor Applications. Sensors 2020, 20, 3924. https://doi.org/10.3390/s20143924

AMA Style

Azeman NH, Arsad N, A Bakar AA. Polysaccharides as the Sensing Material for Metal Ion Detection-Based Optical Sensor Applications. Sensors. 2020; 20(14):3924. https://doi.org/10.3390/s20143924

Chicago/Turabian Style

Azeman, Nur H., Norhana Arsad, and Ahmad A. A Bakar. 2020. "Polysaccharides as the Sensing Material for Metal Ion Detection-Based Optical Sensor Applications" Sensors 20, no. 14: 3924. https://doi.org/10.3390/s20143924

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