Deffo Gullit, Tonleu Temgoua Ranil Clément, Njanja Evangéline, Puzari Panchanan
Department of Chemistry, Electrochemistry and Chemistry of Materials, Faculty of Science, University of Dschang P. O. Box 67 Dschang Cameroon
Department of Chemical Sciences, Tezpur University Tezpur Assam 784028 India.
Nanoscale Adv. 2024 Aug 19;6(19):4736-50. doi: 10.1039/d3na01111a.
Bionanocomposites are materials composed of particles with at least one dimension in the range of 1-100 nm and a constituent of biological origin or biopolymers. They are the subject of current research interest as they provide exciting platforms and act as an interface between materials science, biology, and nanotechnology and find applications in disciplines such as electrochemistry, biomedicine, biosorption, aerospace, tissue engineering and packaging. They have different properties such as high conductivity, thermal stability, electrocatalytic ability, biocompatibility, adsorption ability and biodegradability, which can be tuned by their preparation methods, functionalities and applications. However, depending on the objective or the goal of a research project, specific preparation and characterization of bionanocomposites can be undertaken to understand the behavior and confirm the applicability of a bionanocomposite in a given field. Like in electroanalysis applications, electrode materials should be porous (meso- and macro-porosities), having large specific area (at least having a Brunauer-Emmett-Teller surface of 200 m g), higher stability over time with acceptable power recovery between 95% and 105%, good electrocatalytic ability, and be a good absorbent and a good conductor of electricity (that is to say, it facilitates the transfer of electrons from the solution to the surface of the electrode and ). The present review focuses on the most used method of preparation of bionanocomposites with the critical aspect and their physicochemical and electrochemical characterization techniques, and finally, the practical situations of application of bionanocomposite materials as modified electrodes for electroanalysis of several groups of analytes and a comparison with non-bionanocomposite electrodes are discussed. The future scope of bionanocomposites in the field of electroanalysis is also addressed in this review. But before that, a general overview of bionanocomposite materials in relation to other types of materials is presented to avoid any misunderstanding.
生物纳米复合材料是由至少一维尺寸在1-100纳米范围内的颗粒与生物源成分或生物聚合物组成的材料。它们是当前研究的热点，因为它们提供了令人兴奋的平台，并且作为材料科学、生物学和纳米技术之间的界面，在电化学、生物医学、生物吸附、航空航天、组织工程和包装等学科中有着广泛应用。它们具有诸如高导电性、热稳定性、电催化能力、生物相容性、吸附能力和生物降解性等不同特性，这些特性可以通过其制备方法、功能和应用进行调节。然而，根据研究项目的目标，可对生物纳米复合材料进行特定的制备和表征，以了解其行为并确认其在特定领域的适用性。例如在电分析应用中，电极材料应具有多孔性（中孔和大孔）、大比表面积（至少具有200 m²/g的布鲁诺尔-埃米特-特勒表面积）、随时间具有更高的稳定性且功率恢复在95%至105%之间、良好的电催化能力，并且是良好的吸收剂和电导体（也就是说，它有助于电子从溶液转移到电极表面）。本综述重点关注生物纳米复合材料最常用的制备方法及其关键方面、物理化学和电化学表征技术，最后讨论了生物纳米复合材料作为用于分析几类分析物的修饰电极的实际应用情况以及与非生物纳米复合材料电极的比较。本综述还探讨了生物纳米复合材料在电分析领域的未来发展前景。但在此之前，先对生物纳米复合材料与其他类型材料的关系进行总体概述，以避免任何误解。
