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Updated: Jun 21, 2025

Procoagulant Platelet Characterization by Measuring Phosphatidylserine Exposure and Microvesicle Release from Human Purified Platelets
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Procoagulant Platelet Characterization by Measuring Phosphatidylserine Exposure and Microvesicle Release from Human Purified Platelets

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Concentric hollow multi-hexagonal platelets from a small molecule.

Chenglong Liao1,2, Yanjun Gong1,2, Yanxue Che3

  • 1Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.

Nature Communications
|July 6, 2024
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Summary

Researchers created hollow 2D organic platelets with tunable widths and segments. This novel fabrication method uses selective oxidation and dissolution, enabling new applications in optoelectronics.

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Last Updated: Jun 21, 2025

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Area of Science:

  • Materials Science
  • Organic Chemistry
  • Nanotechnology

Background:

  • Creating well-defined hollow 2D structures from small organic molecules is challenging.
  • Controlling the width and number of segments in these structures is particularly difficult.

Purpose of the Study:

  • To report a novel method for fabricating well-defined hollow 2D platelets with programmable widths and segments.
  • To demonstrate the utility of these structures as templates for advanced lithography.

Main Methods:

  • Fabrication of concentric multiblock 2D precursors via alternative heteroepitaxial growth of two donor-acceptor molecules.
  • Selective oxidation of one donor-acceptor molecule using singlet oxygen generated by ultraviolet irradiation.
  • Selective removal of oxidized segments via solvent dissolution to create hollow structures.

Main Results:

  • Successfully fabricated well-defined concentric hollow 2D platelets with programmable widths and segment numbers.
  • Demonstrated the ability to create hollow multiblock 2D structures through selective oxidation and dissolution.
  • Utilized the hollow platelets as templates for lithographing complex electrodes with controlled gap sizes.

Conclusions:

  • The developed method provides a new route to precisely engineered hollow 2D organic structures.
  • These structures serve as versatile templates for fabricating advanced electrodes for optoelectronic applications.