One-step construction of biosensor based on chitosan–ionic liquid–horseradish peroxidase biocomposite formed by electrodeposition

Xi, Fengna; Liu, Lijun; Wu, Qi; Lin, Xianfu

doi:10.1016/j.bios.2008.03.023

Cited by 75 publications

(22 citation statements)

References 37 publications

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“…However, the more sophisticated methods for this immobilization are electrodeposition, sol-gel encapsulation, and layer-by-layer assembly. In electrodeposition, a clean electrode is immersed in a bath containing the supporting electroactive material and corresponding IL which are then electrochemically deposited onto the electrodes [221,222]. Electrodeposition of metal nanoparticles onto IL/CNT is another well-studied technique to prepare AuNP/IL/CNT nanocomposite-based sensors [223].…”

Section: Il-thin Film Formationmentioning

confidence: 99%

Electrode–Electrolyte Interfacial Processes in Ionic Liquids and Sensor Applications

Zeng

Wang

Rehman

2015

Electrochemistry in Ionic Liquids

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Section: Il-thin Film Formationmentioning

confidence: 99%

Electrode–Electrolyte Interfacial Processes in Ionic Liquids and Sensor Applications

Zeng

Wang

Rehman

2015

Electrochemistry in Ionic Liquids

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“…[80][81] The co-deposition of inorganic nanomaterials improves biosensor properties by promoting electron transfer. The sensitivity and stability of the response of HRP or GOX-based biosensors were also improved by co-incorporation of highly conductive ionic liquids [82][83] and Prussian Blue, an efficient redox mediator for selective reduction of H2O2. [84][85] Acetylcholine, choline, polyphenol, superoxide anions and adrenaline biosensors were created by co-deposition of chitosan with acetylcholine esterase, [86][87][88][89][90][91] choline oxidase, 92 laccase, 93 superoxide dismutase 94 and tyrosinase.…”

Section: Electrodeposition Through Macromolecule Precipitation 11 Elmentioning

confidence: 99%

Review of Electrochemically Triggered Macromolecular Film Buildup Processes and Their Biomedical Applications

Maerten

Jierry

Schaaf

et al. 2017

ACS Appl. Mater. Interfaces

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Macromolecular coatings play an important role in many technological areas, ranging from the car industry to biosensors. Among the different coating technologies, electrochemically triggered processes are extremely powerful because they allow in particular spatial confinement of the film buildup up to the micrometer scale on microelectrodes. Here, we review the latest advances in the field of electrochemically triggered macromolecular film buildup processes performed in aqueous solutions. All these processes will be discussed and related to their several applications such as corrosion prevention, biosensors, antimicrobial coatings, drug-release, barrier properties and cell encapsulation. Special emphasis will be put on applications in the rapidly growing field of biosensors. Using polymers or proteins, the electrochemical buildup of the films can result from a local change of macromolecules solubility, self-assembly of polyelectrolytes through electrostatic/ionic interactions or covalent cross-linking between different macromolecules. The assembly process can be in one step or performed step-by-step based on an electrical trigger affecting directly the interacting macromolecules or generating ionic species.

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“…In electrodeposition, a clean electrode is immersed in a bathing solution containing the supporting electroactive material and corresponding IL which are then electrochemically deposited onto the electrodes. 98,99 Electrodeposition of metal nanoparticles onto IL/CNT is another well studied technique to prepare AuNP/IL/CNT nanocomposite-based sensors. 100 In sol–gel encapsulation, an IL–silica sol is synthesized which is then mixed with different types of interesting molecules to form the films, 101 whereas in the layer-by-layer method a sequential deposition of multiple layers is achieved, 102 one being the IL and the other one the supporting material, onto the electrode surface by electrostatic, van der Waals, hydrogen bonding, and charge transfer interactions.…”

Section: Transducers For Il Based Gas Sensingmentioning

confidence: 99%

Methods and approaches of utilizing ionic liquids as gas sensing materials

Rehman

Zeng

2015

RSC Adv.

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Gas monitoring is of increasing significance for a broad range of applications in the fields of environmental and civil infrastructures, climate and energy, health and safety, industry and commerce. Even though there are many gas detection devices and systems available, the increasing needs for better detection technologies that not only satisfy the high analytical standards but also meet additional device requirements (e.g., being robust to survive under field conditions, low cost, small, smart, more mobile), demand continuous efforts in developing new methods and approaches for gas detection. Ionic Liquids (ILs) have attracted a tremendous interest as potential sensing materials for the gas sensor development. Being composed entirely of ions and with a broad structural and functional diversity, i.e., bifunctional (organic/inorganic), biphasic (solid/liquid) and dual-property (solvent/electrolyte), they have the complementing attributes and the required variability to allow a systematic design process across many sensing components to enhance sensing capability especially for miniaturized sensor system implementation. The emphasis of this review is to describe molecular design and control of IL interface materials to provide selective and reproducible response and to synergistically integrate IL sensing materials with low cost and low power electrochemical, piezoelectric/QCM and optical transducers to address many gas detection challenges (e.g., sensitivity, selectivity, reproducibility, speed, stability, cost, sensor miniaturization, and robustness). We further show examples to justify the importance of understanding the mechanisms and principles of physicochemical and electrochemical reactions in ILs and then link those concepts to developing new sensing methods and approaches. By doing this, we hope to stimulate further research towards the fundamental understanding of the sensing mechanisms and new sensor system development and integration, using simple sensing designs and flexible sensor structures both in terms of scientific operation and user interface that can be miniaturized and interfaced with modern wireless monitoring technologies to achieve specifications heretofore unavailable on current markets for the next generation of gas sensor applications.

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One-step construction of biosensor based on chitosan–ionic liquid–horseradish peroxidase biocomposite formed by electrodeposition

Cited by 75 publications

References 37 publications

Electrode–Electrolyte Interfacial Processes in Ionic Liquids and Sensor Applications

Electrode–Electrolyte Interfacial Processes in Ionic Liquids and Sensor Applications

Review of Electrochemically Triggered Macromolecular Film Buildup Processes and Their Biomedical Applications

Methods and approaches of utilizing ionic liquids as gas sensing materials

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