Modification of Aspergillus niger by conducting polymer, Polypyrrole, and the evaluation of electrochemical properties of modified cells

Apetrei, Roxana-Mihaela; Cârâc, Geta; Bahrim, Gabriela; Ramanavičienė, Almira; Ramanavičius, Arūnas

doi:10.1016/j.bioelechem.2018.01.001

Cited by 37 publications

(24 citation statements)

References 100 publications

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“…The cell walls of molds are divided to three layers: amorphous outer layer of β-glucan (thickness = 87 nm); middle layer of glycoprotein and glucan, fulfilled with protein mesh (thickness = 49 nm); and inner layer of chitin microfibers with amorphous proteins (thickness = 20 nm). [22,35] On the other hand, yeasts living in aerobic and anaerobic environments belong to the facultative anaerobe type. The yeast cells with sphere-, oval-, ellipse-, or rod-shaped morphologies are composed of cell wall, cell membrane, nucleus, cytoplasm, vacuole, mitochondria, and some microbodies, in which the cell wall is composed of glucans, mannans, proteins, chitin, and a small amount of lipids.…”

Section: Common Fungus Microorganismsmentioning

confidence: 99%

“…Moreover, it is an important strain of fermentation industry, which can produce amylase, acidic protease, cellulase, pectinase, glucose oxidase, citric acid, gluconic acid, and gallic acid. [35,109] Specially, it is reported that glucose oxidase (GO x ) production can generate hydrogen peroxide with the condition of sufficient glucose and oxygen, which is capable of initiating the polymerization of pyrrole monomer to form the conductive polymer, polypyrrole (Ppy) [35] in the culture medium composed of carbon, nitrogen resources, and iron and magnesium elements with a pH value of 5.0 as shown in Figure 8. As reported, it is also considered as a biocatalytic and enzymatic pathway to produce the oxidant process.…”

Section: Aspergillus Nigermentioning

confidence: 99%

Section: Fungusmentioning

confidence: 99%

“…Microorganisms are mainly divided to three kinds: bacterium, fungus, and virus . Among them, bacteria (e.g., Shewanella oneidensis MR‐1 and Escherichia coli ,) and fungi (e.g., Aspergillus niger and Saccharomyces cerevisiae ) have attracted tremendous attentions due to their easy reproduction and excellent physicochemical characteristics. On one hand, bacteria and fungi can be utilized as the precursors and doping resources to synthesize in situ single‐/dual‐/ternary‐/quandary‐doped carbon materials after the decomposition and pyrolysis of the proteins, phospholipid, and metal salts .…”

Section: Introductionmentioning

confidence: 99%

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Bacterium, Fungus, and Virus Microorganisms for Energy Storage and Conversion

Shen

Zhou

et al. 2019

Small Methods

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Since rapidly increasing energy demands have aroused tremendous research activities on energy storage and conversion, microorganisms (e.g., bacteria, fungi, and viruses) have played significant roles in developing high‐performance electrodes due to their strong abilities of fast reproduction, biomineralization, gene modification, and self‐assembly. Recently, a large quantity of bacteria and fungi has been utilized as the precursors to produce heteroatom–doped carbons or as the biofactories and templates to biomineralize the metal ions to form carbon‐based composites. In addition, in virtue of easy genetic modification, nanoscale viruses with functional groups are directly used as biotemplates for the self‐assembly of the active materials. In this review, a detailed introduction on the microorganisms and their unique abilities as well as the mechanisms behind their operations are discussed. Moreover, recent progress on bacteria‐ and fungi‐derived carbon materials and their composites, as well as the virus‐templated bio‐materials as the electrodes in electrochemical fields, including batteries and electrocatalysts, are further summarized. Finally, challenges and perspectives on the development of the microorganism derivations in electrochemical fields are also provided. This review offers guidance for the rational design of advanced electrode materials from microorganisms and extend the energy systems from the man‐made to biofabrication.

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Section: Common Fungus Microorganismsmentioning

confidence: 99%

Section: Aspergillus Nigermentioning

confidence: 99%

Section: Fungusmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Bacterium, Fungus, and Virus Microorganisms for Energy Storage and Conversion

Shen

Zhou

et al. 2019

Small Methods

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“…The existing capacitive pressure sensors always combine the elastic deformation element with the capacitor, i.e., the elastic deformation element is either one of the electrode plates or the dielectric material between the electrode plates, as done in the capacitive pressure sensors using soft dielectric elastomer or conductive thin elastic films [ 32 , 33 ]. This study plans to separate the elastic deformation element form the capacitor.…”

Section: Introductionmentioning

confidence: 99%

A Theoretical Study on an Elastic Polymer Thin Film-Based Capacitive Wind-Pressure Sensor

Sun

Shi

et al. 2020

Polymers

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This study is devoted to the design of an elastic polymer thin film-based capacitive wind-pressure sensor to meet the anticipated use for real-time monitoring of structural wind pressure in civil engineering. This sensor is composed of four basic units: lateral elastic deflection unit of a wind-driven circular polymer thin film, parallel plate capacitor with a movable circular electrode plate, spring-driven return unit of the movable electrode plate, and dielectric materials between electrode plates. The capacitance of the capacitor varies with the parallel move of the movable electrode plate which is first driven by the lateral elastic deflection of the wind-driven film and then is, after the wind pressure is reduced or eliminated, returned quickly by the drive springs. The closed-form solution for the contact problem between the wind-driven thin film and the spring-driven movable electrode plate is presented, and its reliability is proved by the experiment conducted. The numerical examples conducted show that it is workable that by using the numerical calibration based on the presented closed-form solution the proposed sensor is designed into a nonlinear sensor with larger pressure-monitoring range and faster response speed than the linear sensor usually based on experimental calibration.

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Iron‐Catalysed Radical Polymerisation by Living Bacteria

et al. 2020

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The ability to harness cellular redox processes for abiotic synthesis might allow the preparation of engineered hybrid living systems. Towards this goal we describe a new bacteria‐mediated iron‐catalysed reversible deactivation radical polymerisation (RDRP), with a range of metal‐chelating agents and monomers that can be used under ambient conditions with a bacterial redox initiation step to generate polymers. Cupriavidus metallidurans, Escherichia coli, and Clostridium sporogenes species were chosen for their redox enzyme systems and evaluated for their ability to induce polymer formation. Parameters including cell and catalyst concentration, initiator species, and monomer type were investigated. Water‐soluble synthetic polymers were produced in the presence of the bacteria with full preservation of cell viability. This method provides a means by which bacterial redox systems can be exploited to generate “unnatural” polymers in the presence of “host” cells, thus setting up the possibility of making natural–synthetic hybrid structures and conjugates.

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Modification of Aspergillus niger by conducting polymer, Polypyrrole, and the evaluation of electrochemical properties of modified cells

Cited by 37 publications

References 100 publications

Bacterium, Fungus, and Virus Microorganisms for Energy Storage and Conversion

Bacterium, Fungus, and Virus Microorganisms for Energy Storage and Conversion

A Theoretical Study on an Elastic Polymer Thin Film-Based Capacitive Wind-Pressure Sensor

Iron‐Catalysed Radical Polymerisation by Living Bacteria

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