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Flexible, high-strength, and porous nano-nano composites based on bacterial cellulose for wearable electronics: a review
Summary
This review examined bacterial cellulose-based nano-nano composites for flexible wearable electronics, finding that bacterial cellulose's high purity, biodegradability, and three-dimensional nano-networked structure make it a promising sustainable alternative to petroleum-based polymer substrates.
Portable flexible electronics based on petroleum-based polymers have stepped onto the stage of modern technology. Increasing environmental problems facilitate emerging technologies based on cellulose because of its abundant sources and the nature of CO2 consumption and biodegradability. Bacterial cellulose (BC) stands out among all cellulose materials because of its unique features, including the abundant hydrogen bonds, small diameter, three-dimensional nano-networked structures, high purity and crystallinity, and the degree of polymerization. The adequate properties impart BC and its nano-nano composites with superior balance among ductility, strength, and porosity, which are crucial for wearables. The principles of this balance, the fabrication of the nano-nano composites, and the wearable electronic applications based on BC are discussed in detail in this review.
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