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Related Concept Videos

Control Systems01:10

Control Systems

Control systems are everywhere in contemporary society, influencing diverse applications from aerospace to automated manufacturing. These systems can be found naturally within biological processes, such as blood sugar regulation and heart rate adjustment in response to stress, as well as in man-made systems like elevators and automated vehicles. A control system is essentially a network of subsystems and processes that collaboratively convert specific inputs into desired outputs.
At the heart...
Control Systems: Applications01:25

Control Systems: Applications

Electrical engineering plays a pivotal role in our daily lives, with control systems at the heart of many applications, from home appliances to sophisticated space shuttles. Control systems manage and regulate the behavior of devices and processes, ensuring they function safely, correctly, and efficiently.
In modern vehicles, control systems manage various functions to enhance performance and safety. The steering wheel and accelerator are primary inputs in a car's control system. The direction...
Feedback control systems01:26

Feedback control systems

Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
Bioreactor Design and Operational System01:29

Bioreactor Design and Operational System

Bioreactors are engineered vessels designed to cultivate microorganisms under controlled conditions for industrial bioprocessing. They maintain sterility and allow precise regulation of pH, temperature, oxygen, and nutrient levels to optimize microbial growth and metabolite production. Bioreactors range from small laboratory units of 1 liter to industrial systems holding up to 500,000 liters, though only about 75% of their volume is actively used for fermentation. The remaining headspace...
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...

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Related Experiment Video

Updated: Jun 28, 2026

Separating Beads and Cells in Multi-channel Microfluidic Devices Using Dielectrophoresis and Laminar Flow
09:45

Separating Beads and Cells in Multi-channel Microfluidic Devices Using Dielectrophoresis and Laminar Flow

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Engineering colloidal systems for cell manipulation, delivery, and tracking.

Olga A Sindeeva1, Zhanna V Kozyreva1, Arkady S Abdurashitov2

  • 1Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, Moscow 121205, Russia.

Advances in Colloid and Interface Science
|March 4, 2025
PubMed
Summary
This summary is machine-generated.

Engineered colloidal systems are crucial for biomedical applications, focusing on cell interactions and intracellular functions. This review details advances in designing colloids for targeted drug delivery and cell manipulation.

Keywords:
BiocolloidsCell internalizationCell-mediated deliveryColloid designEncapsulationNanoparticles

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Area of Science:

  • Biomedical science and nanotechnology
  • Colloid and interface science
  • Cellular biology and drug delivery

Background:

  • Man-made colloidal systems are integral to biomedical science, with a growing need for tailored functionalities.
  • Current challenges in colloid design involve understanding and controlling cell-colloid interactions, cellular uptake, and intracellular behavior.

Purpose of the Study:

  • To review recent advancements in engineering colloidal particles for biomedical applications.
  • To focus on the interactions of colloidal particles with various human cell types.
  • To discuss the potential of colloids in cell tracking, drug delivery, and modulating cell functions.

Main Methods:

  • Review of current literature on colloidal system design and cell-colloid interactions.
  • Analysis of studies focusing on colloidal particle uptake and behavior within specific cell types.
  • Examination of strategies involving cell membrane fragments and exosomes for enhanced colloidal applications.

Main Results:

  • Colloidal particles are being engineered to interact with and be internalized by diverse cell types, including stem cells, immune cells, neurons, and blood cells.
  • Engineering colloidal vesicles with cell membrane fragments and exosomes shows promise for improved biocompatibility and targeted delivery.
  • Research is exploring cell tracking, using cells as drug transporters, and external triggers for cell function modulation via colloids.

Conclusions:

  • Significant progress has been made in understanding and controlling colloid-cell interactions for biomedical purposes.
  • Further research is needed to overcome limitations in colloid design and biological barriers for clinical translation.
  • The strategic engineering of colloidal systems offers promising avenues for advanced drug delivery and cellular therapies.