Petri Dish Modification
Petri Dish Modification - Related Videos
02:32
Histone Modification
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2020
The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression. Acetylation The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone deacetylase,...
03:57
Microtiter Dish Biofilm Formation Assay
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Cited by 2243 •
2011
The assay describes a rapid means to measure early biofilm formation in bacteria and fungi. This method uses a microtiter plate as the substratum for microbial biofilm formation, and the biofilm is visualized using crystal violet strain. The assay provides either a qualitative or quantitative assay for early biofilm formation.
02:25
Spreading of Chromatin Modifications
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2020
The histone proteins in the nucleosomes are post-translationally modified (PTM) to increase or decrease access to DNA. The commonly observed PTMs are methylation, acetylation, phosphorylation, and ubiquitination of lysine amino acids in the histone H3 tail region. These histone modifications have specific meaning for the cell. Hence, they are called "histone code". The protein complex involved in histone modification is termed as "reader-writer" complex. Writers The writer is an enzyme that can...
11:44
Targeted Microinjection and Electroporation of Primate Cerebral Organoids for Genetic Modification
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Cited by 5 •
2023
The electroporation of primate cerebral organoids provides a precise and efficient approach to introduce transient genetic modification(s) into different progenitor types and neurons in a model system close to primate (patho)physiological neocortex development. This allows the study of neurodevelopmental and evolutionary processes and can also be applied for disease modeling.
03:53
Preparation of Collagen-Coated Compartmented Culture Dishes for Neuronal Cell Culture
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2025
This video demonstrates constructing a three-compartment cell culture system using collagen and non-reactive grease. This system is used to observe interactions between glioma cells and axons in real-time.
FAQs
Altered surfaces, barriers, and compartments can change where samples are located and how they interact. A modified surface can provide a different contact condition, while barriers or compartments can separate samples or create distinct internal regions. This arrangement helps researchers examine interactions under defined spatial conditions, rather than treating the dish as a uniform environment.
These variables shape the conditions experienced by samples and therefore influence how those samples interact with their surroundings. Keeping moisture, nutrients, temperature, and gas exchange controlled lets an investigation focus on selected environmental conditions instead of uncontrolled changes. This control also supports comparisons between experimental setups and improves the reproducibility of observations.
Because a modified dish can model a simplified habitat, it allows researchers to examine how samples respond when environmental conditions are defined rather than broadly variable. This makes the approach relevant to environmental stress questions while keeping the investigation manageable in the laboratory. The resulting observations can inform broader questions about environmental change and organism behavior.
Design starts by identifying the investigation's purpose, such as examining microbial growth, contamination, biodegradation, or stress responses. Researchers then select relevant dish alterations, including surface changes, barriers, or compartments, and decide which internal conditions to control. Maintaining those conditions while observing sample interactions provides a structured basis for comparing results.
Environmental applications include examining microbial growth, contamination, biodegradation, and responses to environmental stress. Petri dish modification supports these uses by allowing researchers to shape the sample's surroundings and create defined experimental conditions. This makes the technique useful for focused laboratory studies that address environmental questions without attempting to reproduce an entire ecosystem.
Results from modified dishes can show how samples behave under selected conditions, including interactions relevant to microbial growth, contamination, biodegradation, or stress. Because the conditions are deliberately shaped, observations can be compared more consistently across setups. Their broader value lies in connecting controlled laboratory findings with questions about ecosystems and environmental change.