Sequential Chip
Sequential Chip - Related Videos
01:21
Sequential Games
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2025
Sequential games involve players making decisions one after another, with each player considering the prior decisions of other players before deciding their own strategy. The order of these decisions is crucial, as each decision influences subsequent ones, affecting the overall outcome. Decision trees are valuable tools in illustrating these games, helping visualize each possible decision and its consequences, allowing players to anticipate and plan strategies effectively. Consider two coffee...
07:50
Chip-Based Digital PCR to Detect Rare Transcript Variants Using a Nanofluidic Chip
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2025
This video demonstrates chip-based digital PCR — a variation of the digital PCR technique that is useful in detecting rare transcript variants. The PCR reaction is partitioned into the chambers of a nanofluidic chip, each of which acts as an independent reaction. The detection of fluorescence signals from the chambers with amplified targets confirms the presence of rare transcript variants in the sample.
01:35
Organ-on-Chip Models
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2026
Introduction to Organ-on-Chip Models Organ-on-chip models are advanced microphysiological systems that recreate key structural and functional features of human organs in a controlled laboratory setting. These devices integrate living human cells within microfluidic channels, allowing researchers to simulate tissue–tissue interfaces, fluid flow, and mechanical forces that are essential for normal organ function. Unlike traditional cell cultures, which often lack these dynamic physiological cues,...
11:23
Lensless Fluorescent Microscopy on a Chip
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Cited by 8 •
2011
A lensless on-chip fluorescent microscopy platform is demonstrated that can image fluorescent objects over an ultra-wide field-of-view of e.g., >0.6-8 cm2 with <4μm resolution using a compressive sampling based decoding algorithm. Such a compact and wide-field fluorescent on-chip imaging modality could be valuable for high-throughput cytometry, rare-cell research and microarray-analysis.
01:24
Sequential Game: Backward Induction
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2025
Backward induction is a technique for solving sequential games. It involves analyzing the game starting from the end and working backwards to the beginning. This method helps players determine their best strategies by anticipating how others will react at each stage of the game, ultimately leading to the Nash equilibrium. Imagine two beverage companies, FreshFizz and CoolBrew, deciding whether to enter a new market. FreshFizz moves first and must choose to enter or stay out. If FreshFizz...
FAQs
Signal order allows researchers to test whether a developmental cue acts differently when delivered before or after another treatment. By changing the sequence while controlling the exposure conditions, experiments can connect the timing of signals with changes in cell fate, tissue organization, or morphogenesis. This helps distinguish effects caused by signal identity from effects caused by signal order.
Valves, pumps, and programmed flow changes regulate when fluids enter and leave different regions of the device. Their coordinated operation determines which treatment reaches the sample, when exposure begins, and how the next treatment follows. This control makes the experimental sequence reproducible and supports precise comparisons between developmental conditions.
A single static treatment does not reproduce changing developmental environments, because all signals are presented under one fixed condition. Sequential exposure instead lets researchers examine how cells or tissues respond to transitions between nutrients, developmental signals, and inhibitors. The resulting comparisons can reveal whether developmental outcomes depend on timing and succession rather than exposure alone.
The treatment sequence, timing of flow changes, and routing of fluids through connected chambers or channels must remain controlled. Researchers should also define which developmental signals, nutrients, or inhibitors reach the sample at each stage. Consistent control of these variables improves reproducibility and makes differences in cell fate or tissue organization easier to attribute to the intended sequence.
A basic workflow begins by placing the cells or tissue in the designated chamber or channel network, then programming the desired order of fluid exposures. Valves, pumps, or flow changes deliver the selected signals, nutrients, or inhibitors at defined stages. Researchers then compare the resulting cell fate, tissue organization, or morphogenesis with outcomes from alternative sequences or conditions.
This approach is suited to questions about how changing environments guide cell fate, tissue organization, and morphogenesis. It can test whether a signal has different effects depending on when it arrives or whether an inhibitor alters a later response. Because the device uses controlled sequential exposure, it also supports reproducible studies while reducing reagent use.