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Related Concept Videos

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Eukaryotic Compartmentalization

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One of the distinguishing features of eukaryotic cells is that they contain membrane-bound organelles, such as the nucleus and mitochondria, that carry out specialized functions. Since biological membranes are only selectively permeable to solutes, they help create a compartment with controlled conditions inside an organelle. These microenvironments are tailored to the organelle's specific functions and help isolate them from the surrounding cytosol.
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Combining 3D Magnetic Force Actuator and Multi-Functional Fluorescence Imaging to Study Nucleus Mechanobiology
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Cell nucleus as endogenous biological micropump.

Qing Gao1, Weihong Wang1, Xiaogang Li2

  • 1Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China.

Biosensors & Bioelectronics
|March 28, 2021
PubMed
Summary

Researchers created biocompatible micropumps using red blood cell nuclei for targeted in vivo transport of nanoparticles and cells. This innovation advances drug delivery, biosensing, and clinical therapies with a bio-friendly approach.

Keywords:
Active deliveryCell nucleusEndogenous micropumpsOptical tweezersOptofluidic transport

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Area of Science:

  • Biomedical Engineering
  • Nanotechnology
  • Cell Biology

Background:

  • Micropumps are crucial for in vivo applications like drug delivery and biosensing.
  • Current synthetic micropumps face biocompatibility challenges due to invasive implantation.
  • Red blood cells offer a potential source for biocompatible micro-devices.

Purpose of the Study:

  • To develop intrinsically biocompatible endogenous micropumps.
  • To demonstrate precise control over microfluidic transport for biomedical applications.
  • To establish a high-throughput, bio-friendly platform for in vivo analysis and therapy.

Main Methods:

  • Extraction of nuclei from red blood cells to create endogenous micropumps.
  • Utilizing a scanning optical tweezing system for precise actuation of nuclei.
  • Demonstrating targeted navigation and controlled transport of nanoparticles and cells.

Main Results:

  • Successfully constructed and actuated endogenous micropumps from red blood cell nuclei.
  • Achieved precise control over microflow direction and velocity for targeted delivery.
  • Showcased multiplexing capabilities by simultaneously driving multiple nuclei.

Conclusions:

  • Endogenous micropumps derived from red blood cell nuclei offer complete biocompatibility.
  • This technology enables enhanced efficiency, sensitivity, and speed in biological assays.
  • The platform holds significant promise for in vivo disease treatment, monitoring, and analysis.