Controlled Environment
Controlled Environment - 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.
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.
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).
10:27
Controlled Microfluidic Environment for Dynamic Investigation of Red Blood Cell Aggregation
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Cited by 8 •
2015
The protocol described details an experimental procedure to quantify Red Blood Cell (RBC) aggregates under a controlled and constant shear rate, based on image processing techniques. The goal of this protocol is to relate RBC aggregate sizes to the corresponding shear rate in a controlled microfluidic environment.
09:30
A Protocol for Housing Mice in an Enriched Environment
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Cited by 70 •
2015
Environmental enrichment for mice requires a complex and challenging setup, as well as comprehensive husbandry and handling techniques to assure robust metabolic and anti-cancer effects in the mice. This protocol provides detailed procedures to reproduce the above mentioned effects in mice.
FAQs
Controlled environment research improves interpretation by reducing background variation. When temperature, humidity, light, atmospheric composition, nutrients, and contamination levels remain regulated, differences observed between treatments are less likely to reflect uncontrolled surroundings. This allows investigators to distinguish treatment effects from unintended environmental influences and supports more reproducible biological experiments.
Temperature, humidity, light intensity, atmospheric composition, nutrient availability, and contamination levels are key control points. Their regulation lets researchers expose organisms or cultures to defined combinations of conditions while limiting variation from outside the experiment. This is especially useful when studying responses to stress, climate conditions, nutrients, or other deliberately selected factors.
Unlike a setting with uncontrolled environmental variation, a controlled environment makes experimental conditions more consistent across observations. That consistency does not eliminate the biological response being studied; instead, it reduces competing influences that could obscure treatment effects. The result is a clearer basis for comparing responses and repeating the study under similar conditions.
Environmental chambers, growth rooms, and specialized culture systems provide different physical settings for regulation. The selected system can support work with plants, cells or tissues, microorganisms, animals, or biotechnology applications. Within it, researchers can adjust conditions such as light, atmospheric composition, nutrient availability, and contamination levels to suit the biological material.
Researchers begin by selecting the biological material and the conditions relevant to the question, then regulate specified variables with an environmental chamber, growth room, or culture system. They maintain the intended combination of physical, chemical, and biological conditions while comparing the selected treatment or response. This workflow limits unintended environmental variation.
Applications span plant growth studies, cell and tissue culture, microbiology, animal research, and biotechnology. In these settings, controlled conditions can be used to examine how biological systems respond to stress, climate conditions, nutrient availability, or other experimental factors. The approach is valuable when researchers need consistent conditions for comparing treatments or reproducing findings.