Magnetic Bacterial Cellulose Biopolymers: Production and Potential Applications in the Electronics Sector

Abstract

Bacterial cellulose (BC) is a biopolymer that has been widely investigated due to its useful characteristics, such as nanometric structure, simple production and biocompatibility, enabling the creation of novel materials made from additive BC in situ and/or ex situ. The literature also describes the magnetization of BC biopolymers by the addition of particles such as magnetite and ferrites. The processing of BC with these materials can be performed in different ways to adapt to the availability of materials and the objectives of a given application. There is considerable interest in the electronics field for novel materials and devices as well as non-polluting, sustainable solutions. This sector influences the development of others, including the production and optimization of new equipment, medical devices, sensors, transformers and motors. Thus, magnetic BC has considerable potential in applied research, such as the production of materials for biotechnological electronic devices. Magnetic BC also enables a reduction in the use of polluting materials commonly found in electronic devices. This review article highlights the production of this biomaterial and its applications in the field of electronics.

Pembangunan Penyimpanan Tenaga Hijau Daripada Selulosa Bakteria, Selulosa Metil Dan Kanji Kentang

“…BC mempunyai keupayaan membentuk nisbah aspek yang tinggi, kekuatan mekanikal yang cemerlang, fleksibel, dan boleh bertindak sebagai penghantar ion [9]. Kumpulan eter (-C-O-C-) dalam struktur BC hampir sama seperti polioksida etilena iaitu polimer biasa yang digunakan dalam penyimpanan tenaga [10]. Struktur ini membolehkan polimer memegang bahan karbon aktif seperti karbon teraktif, tiub nano karbon, grafit, aerogel karbon, dan grafen.…”

Synthesis of Iron Oxides and Influence on Final Sizes and Distribution in Bacterial Cellulose Applications

“…The incorporation of iron oxide nanoparticles in BC can occur in situ, when the production process of the additives is performed within the BC, or ex situ, when the iron oxide is synthesised separately and subsequently inserted into the BC [10]. The graph presented in Figure 11 shows the frequency rates of iron oxide incorporation processes in bacterial cellulose films according to data extracted from the study by Souza et al [10]. As seen in the graph, there is a greater tendency to adopt in situ methods.…”

“…Bacterial cellulose (BC) is a biomaterial with sustainable production through the fermentation of bacteria that has unique properties, such as biocompatibility, biodegradability and high water absorption capacity [ 38 , 39 , 40 , 41 ]. The incorporation of iron oxide nanoparticles in BC can occur in situ, when the production process of the additives is performed within the BC, or ex situ, when the iron oxide is synthesised separately and subsequently inserted into the BC [ 10 ]. The graph presented in Figure 11 shows the frequency rates of iron oxide incorporation processes in bacterial cellulose films according to data extracted from the study by Souza et al [ 10 ].…”

“…In many applications, iron oxide nanoparticles are incorporated into bacterial cellulose, which is a sustainable, biotechnological compound for the production of novel biotechnological materials that meet the needs of different fields and are used in the fabrication of various devices, such as contrasts for magnetic resonance, sensors and electronics [ 10 ].…”