Biochemical Environment Control
Biochemical Environment Control - Related Videos
09:11
Controlled Rotation of Human Observers in a Virtual Reality Environment
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Cited by 2 •
2022
The controlled physical rotation of a human observer is desirable for certain experimental, recreational, and educational applications. This paper outlines a method for converting an office swivel chair into a medium for controlled physical rotation in a virtual reality environment.
13:13
Biochemical Measurement of Neonatal Hypoxia
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Cited by 19 •
2011
A method is described to measure biochemical markers of neonatal hypoxia-ischemia. The approach utilizes high pressure liquid chromatography (HPLC) and Gas Chromatography Mass Spectrometry (GC/MS).
09:30
Microbial Control and Monitoring Strategies for Cleanroom Environments and Cellular Therapies
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Cited by 2 •
2023
The protocol summarizes the best practices to minimize microbial bioburden in a cleanroom environment and includes strategies such as environmental monitoring, process monitoring, and product sterility testing. It is relevant for manufacturing and testing facilities that are required to meet current good tissue practice standards and current good manufacturing practice standards.
07:16
Biochemical Titration of Glycogen In vitro
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Cited by 3 •
2013
We describe here an accurate, reproducible and convenient biochemical method for titration of glycogen in vitro. This technique uses the Abcam Glycogen assay kit and is based on successive hydrolysis of glycogen to glucose and glucose titration by fluorescence.
11:15
Electric Field-controlled Directed Migration of Neural Progenitor Cells in 2D and 3D Environments
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Cited by 22 •
2012
This protocol demonstrates methods used to establish 2D and 3D environments in custom-designed electrotactic chambers, which can track cells in vivo/ex vivo using time-lapse recording at the single cell level, in order to investigate galvanotaxis/electrotaxis and other cellular responses to direct current (DC) electric fields (EFs).
FAQs
Feedback control links measurement to correction: sensors detect changes in conditions, a control system compares those readings with defined operating targets, and actuators adjust the environment. This closed-loop arrangement can respond to changing biological activity rather than relying only on a preset setting, helping maintain conditions that support reproducible culture and process performance.
The relevant variables include pH, temperature, dissolved oxygen, nutrient levels, and metabolite concentrations. Their importance depends on whether the goal is cell growth, enzyme activity, metabolism, or product formation. Monitoring several variables together gives researchers a broader view of system performance and helps reveal how chemical and physical changes influence an engineered biological system.
Sensors provide measurements of the biological system's chemical and physical state, while pumps, supplied gases, and other actuators make controlled adjustments. Keeping these functions distinct allows the system to detect a deviation and apply an appropriate environmental response. In cell culture, fermentation, or bioprocessing, this coordination supports defined operating conditions and more consistent outcomes.
Precise regulation separates environmental effects from other sources of variation. When researchers deliberately maintain or change factors such as oxygen, nutrients, pH, or temperature, they can examine how those conditions affect growth, metabolism, or product formation. This makes the approach useful not only for maintaining cultures, but also for identifying relationships between environment and biological performance.
A typical workflow begins by selecting the operating conditions relevant to the biological system, such as pH, temperature, oxygen, nutrients, or metabolites. Sensors then monitor those variables, a feedback system evaluates the measurements against the defined conditions, and pumps, gases, or other actuators make adjustments. The resulting responses can be monitored to assess system stability and performance.
Researchers apply controlled biochemical environments to cell culture, tissue engineering, fermentation, and bioprocessing. The method is useful when reproducible growth, metabolism, or product formation is important, or when investigators need to test how environmental changes affect a system. Its broader value lies in connecting controlled experimental conditions with reliable biological outputs and scalable processes.
Maintaining defined conditions can promote desired growth, metabolism, or product formation while improving reproducibility across experiments and processes. In bioengineering, these capabilities contribute to the development of therapies, biomaterials, and scalable manufacturing processes. Controlled environments also provide a basis for evaluating biological responses, linking environmental settings to performance and informing the design of engineered systems.