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Biofuels01:25

Biofuels

The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...
Microbial Fuel Cells01:23

Microbial Fuel Cells

Microbial fuel cells (MFCs) are bioelectrochemical devices that generate electricity by exploiting the metabolic processes of electrogenic bacteria. These systems provide a renewable energy source and serve as an innovative method for treating organic waste, such as wastewater.A typical MFC consists of two chambers: an anoxic (oxygen-free) compartment that houses the bacteria and an oxic (oxygen-rich) compartment that contains oxygen as the terminal electron acceptor. Many MFCs use proton...
Bioreactor Controls-I01:28

Bioreactor Controls-I

Maintaining optimal conditions within fermenters is essential for maximizing microbial productivity and ensuring process efficiency. This lesson focuses on key parameters—temperature, foam, pH, carbon dioxide, oxygen, and pressure—and their precise measurement and control strategies in fermentation systems.Temperature ControlTemperature regulation is critical due to the exothermic nature of many fermentation processes. In small laboratory fermenters, temperature is commonly monitored using...
Batteries and Fuel Cells03:12

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A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
Bioreactor Controls-II01:18

Bioreactor Controls-II

In aerobic fermentations, oxygen is vital for microbial growth and metabolite production. Since air comprises only about 20% oxygen and the gas is poorly soluble in water—just 9 ppm at 20°C—supplying sufficient oxygen becomes a critical challenge, especially in high-demand processes like yeast growth or citric acid production. Even a fully saturated broth may offer only a few seconds of oxygen availability.To address this, sterile or scrubbed air is introduced into the fermentor via a sparger...
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Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...

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GENPLAT: an Automated Platform for Biomass Enzyme Discovery and Cocktail Optimization
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Published on: October 24, 2011

酵素論理システムによって制御されるバイオ燃料電池.

Liron Amir1, Tsz Kin Tam, Marcos Pita

  • 1Department of Chemistry and Biomolecular Science, and NanoBio Laboratory, Clarkson University, Potsdam, New York 13699-5810, USA.

Journal of the American Chemical Society
|December 25, 2008
PubMed
まとめ
この要約は機械生成です。

研究者は,生化学信号を処理する論理ゲートによって制御される酵素ベースのバイオ燃料電池を開発しました. このpHで切り替える電極は,潜在的埋め込みデバイスのオンデマンド電力供給を可能にします.

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科学分野:

  • バイオ電気化学 バイオ電気化学
  • 酵素工学とは
  • バイオマテリアル バイオマテリアル

背景:

  • 酵素ベースのバイオ燃料電池は持続可能なエネルギーを提供しますが,正確な制御メカニズムが必要です.
  • 植え付け可能なデバイスの開発には,反応性があり,適応性のある電源が必要です.
  • 論理操作は,複雑な生物信号を処理して,複雑な制御を行うことができます.

研究 の 目的:

  • pHで切り替える電極を搭載した酵素ベースのバイオ燃料電池を開発する.
  • 酵素ロジックゲートをインサイト生化学信号処理に統合する.
  • 需要に応じて電力を供給するために生化学的入力によって制御可能な原型バイオ燃料電池を作成する.

主な方法:

  • 生化学信号に基づいてブール論理演算 (AND/OR) を行うための組み立てた酵素システム.
  • 酸素還元のために,Os複合体リドックスリレーとラッカゼで改造されたpH交換可能なカソッドを設計した.
  • 電子の機能を制御するために,pHに依存する電気化学的活性移行 (不活性>pH5.5,活性

主要な成果:

  • 酵素ゲートによるpH変化に生化学信号の論理的処理が成功していることが実証されています.
  • 溶液のpH.に基づいて,酸素還元電極の切り替え可能なアクティベーション/デアクティベーションを達成しました.
  • 酵素論理システムとpH調節を使用して,バイオ燃料電池をONとOFFに成功しました.

結論:

  • 論理操作で制御される酵素ベースのバイオ燃料電池の最初のプロトタイプを開発しました.
  • このpHスイッチ可能なシステムは,生化学的なシグナルに反応して,オンデマンドの発電を可能にします.
  • 論理的に生理学的ニーズに対応する将来の植入可能なバイオ燃料細胞のための基盤を提示します.