Significant enhancement of electrical conductivity of conductive cellulose derived from bamboo and polypyrrole

Khamwongsa, Prompong; Wongjom, Poramed; Cheng, Hsu-Yung; Lin, Chun Che; Ummartyotin, S.

doi:10.1016/j.jcomc.2022.100314

Cited by 6 publications

(4 citation statements)

References 41 publications

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“…The conductivity profiles provide additional information to the capacitive trends, so presenting an in-depth understanding of the protobrain's ability to effectively transport charge and reduce signal attenuation. Conductivity is also directly influenced by molecular-level factors including ion mobility, membrane permeability and structural order [51][52][53][54]. A closer look at the frequency dependency may thus provide valuable mechanistic insights into the dynamic reorganization of conductive components within the proteinoidmicrobe matrix (figure 10).…”

Section: Elucidating the Adaptive Performance Of A 'Kombucha-proto Br...mentioning

confidence: 99%

Electroactive composite biofilms integrating Kombucha, Chlorella and synthetic proteinoid Proto–Brains

Nikolaidou,

Mougkogiannis,

Adamatzky

2024

R. Soc. Open Sci.

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In this study, we present electroactive biofilms made from a combination of Kombucha zoogleal mats and thermal proteinoids. These biofilms have potential applications in unconventional computing and robotic skin. Proteinoids are synthesized by thermally polymerizing amino acids, resulting in the formation of synthetic protocells that display electrical signalling similar to neurons. By incorporating proteinoids into Kombucha zoogleal cellulose mats, hydrogel biofilms can be created that have the ability to efficiently transfer charges, perform sensory transduction and undergo processing. We conducted a study on the memfractance and memristance behaviours of composite biofilms, showcasing their capacity to carry out unconventional computing operations. The porous nanostructure and electroactivity of the biofilm create a biocompatible interface that can be used to record and stimulate neuronal networks. In addition to in vitro neuronal interfaces, these soft electroactive biofilms show potential as components for bioinspired robotics, smart wearables, unconventional computing devices and adaptive biorobotic systems. Kombucha-proteinoids composite films are a highly customizable material that can be synthesized to suit specific needs. These films belong to a unique category of ‘living’ materials, as they have the ability to support cellular systems and improve bioelectronic functionality. This makes them an exciting prospect in various applications. Ongoing efforts are currently being directed towards enhancing the compositional tuning of conductivity, signal processing and integration within hybrid bioelectronic circuits.

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Section: Elucidating the Adaptive Performance Of A 'Kombucha-proto Br...mentioning

confidence: 99%

Electroactive composite biofilms integrating Kombucha, Chlorella and synthetic proteinoid Proto–Brains

Nikolaidou,

Mougkogiannis,

Adamatzky

2024

R. Soc. Open Sci.

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“…The conductivity profiles provide additional information to the capacitive trends, so presenting an in-depth understanding of the proto-brain's ability to effectively transport charge and reduce signal attenuation. Conductivity is also directly influenced by molecular-level factors including ion mobility, membrane permeability, and structural order [49,50,51,52]. A closer look of the frequency dependency may thus provide valuable mechanistic insights into the dynamic reorganisation of conductive components within the proteinoid-microbe matrix(Figure 10).…”

Section: Elucidating the Adaptive Performance Of A "Kombucha-proto Br...mentioning

confidence: 99%

Electroactive Composite Biofilms Integrating Kombucha, Chlorella and Synthetic Proteinoid Proto–Brains

Nikolaidou,

Mougkogiannis,

Adamatzky

2023

Preprint

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In this study, we present electroactive biofilms made from a combination of Kombucha zoogleal mats andthermal proteinoids. These biofilms have potential applications in unconventional computing and roboticskin. Proteinoids are synthesised by thermally polymerizing amino acids, resulting in the formation ofsynthetic protocells that display electrical signalling similar to neurons. By incorporating proteinoids intoKombucha zoogleal cellulose mats, hydrogel biofilms can be created that have the ability to efficiently transfercharges, perform sensory transduction, and undergo processing. We conducted a study on the memfractanceand memristance behaviours of composite biofilms, showcasing their capacity to carry out unconventionalcomputing operations. The porous nanostructure and electroactivity of the biofilm create a biocompatibleinterface that can be used to record and stimulate neuronal networks. In addition to in vitro neuronal interfaces, these soft electroactive biofilms show potential as components for bioinspired robotics, smart wearables,unconventional computing devices, and adaptive biorobotic systems. Kombucha-proteinoids composite filmsare a highly customizable material that can be synthesised to suit specific needs. These films belong toa unique category of “living” materials, as they have the ability to support cellular systems and improvebioelectronic functionality. This makes them an exciting prospect in various applications. Ongoing effortsare currently being directed towards enhancing the compositional tuning of conductivity, signal processing,and integration within hybrid bioelectronic circuits.

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“…An effective approach to address this issue is to utilize eco-friendly products. The bene ts of ecologically friendly materials include non-toxicity, capacity to be sustained over time, and inherent biodegradability (Khamwongsa et al 2022). The need to establish a sustainable consumption has initiated exploration into utilizing natural cellulose as a substitute for non-renewable resources in many applications (Du et al 2017;Chen et al 2020;Liu et al 2020).…”

Section: Introductionmentioning

confidence: 99%

The use of low-quality cotton-derived cellulose films as templates for in situ conductive polymer synthesis as promising biomaterials in biomedical applications

Demirci,

Sahiner,

Rumi

et al. 2024

Preprint

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Due to the growing interest in biopolymer-based composites in many applications, noticeable devotion has been directed to natural polymer-derived products not only because of their renewable and eco-friendly characteristics but also for their versatility in processing conditions and cost-effectiveness in fabricating the final products. Here, we report the use of cellulose films (CFs) produced from low-quality cotton as a template for in situ synthesis of well-known conductive polymers, e.g., polyaniline (PANI) and polypyrrole (PPY) via oxidative polymerization. Three successive monomer loading/polymerization cycles of aniline (ANI) and pyrrole (PY) within CFs as PANI@CF or PPY@CF were carried out to increase the extent of conductive polymer content. The contact angle (CA) for three times ANI and PPY loaded and polymerized CFs as 3PANI@CF and 3PPY@CF were determined as 26.3 ± 2.8o and 42.3 ± 0.6o, respectively. As the electrical conductivity is increased with increased number of conductive polymer synthesis within CF, the higher conductivity values, 3x10− 4±8.1x10− 5 S.cm− 1 and 2.1x10− 3±5.8x10− 4 S.cm− 1, respectively were measured for 3PANI@CF and 3PPY@CF composites that were approximately 3.3K-fold and 30K-fold higher, respectively, compared to bare CF. It was also found that PANI@CF composites are hemolytic, whereas PPY@CF composites are not at 1 mg/mL concentrations. In the presence of 1 mg of CF-based conductive polymer composites, all PPY@CF composites exhibit better biocompatibility than PANI@CF composites on L929 fibroblast cells with 81 ± 9, 71 ± 8, and 70 ± 8% cell viability for 1PPY@CF, 2PPY@CF, and 3PPY@CF composites, respectively. Moreover, the minimum inhibition concentration (MIC) and minimum bactericidal concentration (MBC) of 3PPY@CF composites for Escherichia coli ATCC8739, Staphylococcus aureus ATCC6538 are determined as 2.5 and 5 mg/mL, whereas these values were estimated to 5 and 10 mg/mL for Candida albicans ATCC10231.

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Significant enhancement of electrical conductivity of conductive cellulose derived from bamboo and polypyrrole

Cited by 6 publications

References 41 publications

Electroactive composite biofilms integrating Kombucha, Chlorella and synthetic proteinoid Proto–Brains

Electroactive composite biofilms integrating Kombucha, Chlorella and synthetic proteinoid Proto–Brains

Electroactive Composite Biofilms Integrating Kombucha, Chlorella and Synthetic Proteinoid Proto–Brains

The use of low-quality cotton-derived cellulose films as templates for in situ conductive polymer synthesis as promising biomaterials in biomedical applications

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