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Related Concept Videos

Chemical Reactions in Aqueous Solutions03:03

Chemical Reactions in Aqueous Solutions

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Aqueous Solutions and Heats of Hydration02:42

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Water and other polar molecules are attracted to ions. The electrostatic attraction between an ion and a molecule with a dipole is called an ion-dipole attraction. These attractions play an important role in the dissolution of ionic compounds in water.
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Phase Diagrams

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A phase diagram combines plots of pressure versus temperature for the liquid-gas, solid-liquid, and solid-gas phase-transition equilibria of a substance. These diagrams indicate the physical states that exist under specific conditions of pressure and temperature and also provide the pressure dependence of the phase-transition temperatures (melting points, sublimation points, boiling points). Regions or areas labeled solid, liquid, and gas represent single phases, while lines or curves represent...
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Phase Transitions

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Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...
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Inductance: Single-Phase And Three-Phase Line01:28

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Understanding the inductance of transmission lines is crucial for efficient design and operation in electrical power systems. This discussion delves into the inductance characteristics of single-phase two-wire and three-phase three-wire transmission lines with equal phase spacing.
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Capacitance: Single-Phase And Three-Phase Line01:25

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In electrical power systems, understanding the capacitance of transmission lines is fundamental for efficient operation.
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Cell Co-culture Patterning Using Aqueous Two-phase Systems
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All-Aqueous-Phase Microfluidics for Cell Encapsulation.

Kaixuan Zhu1,2, Yunru Yu3, Yue Cheng1

  • 1Department of Electronic Science and Technology , University of Science and Technology of China , Hefei 230027 , China.

ACS Applied Materials & Interfaces
|January 17, 2019
PubMed
Summary
This summary is machine-generated.

This study introduces an oil-free microfluidic method for creating cell-laden hydrogel microcapsules. This innovative technique enhances cell viability and offers a safer alternative for 3D cell culture and tissue engineering applications.

Keywords:
cell encapsulationemulsionhydrogelmicrocapsulemicrofluidics

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Area of Science:

  • Biomaterials Science
  • Microfluidics
  • Cell Biology

Background:

  • Cell-laden hydrogel microcarriers are crucial for 3D cell culture, cellular therapy, and tissue engineering.
  • Traditional methods using oil-based emulsification can lead to cell damage and protein denaturation due to oil's cytotoxicity.

Purpose of the Study:

  • To develop an oil-free microfluidic method for producing cell-laden microcapsules.
  • To demonstrate the efficacy of this method for 3D cell culture applications.

Main Methods:

  • Utilized all-aqueous-phase microfluidics with immiscible aqueous solutions as continuous and dispersed phases.
  • Employed oscillation from a solenoid valve to form microcapsules at the water-water interface.
  • Controlled microcapsule structure by adjusting flow rates and oscillation frequencies.

Main Results:

  • Successfully generated stable, core-shell microcapsules with controllable structures.
  • Encapsulated cells maintained high viability in subsequent 3D cell culture.
  • Demonstrated cell aggregation within the microcapsules.

Conclusions:

  • The presented oil-free microfluidic method provides a biocompatible and efficient approach for microcapsule production.
  • This technique offers significant advantages over traditional oil-based methods for biomedical applications.
  • The method shows broad potential for applications in 3D cell culture, cellular therapy, and tissue engineering.