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Related Experiment Video

Updated: Apr 25, 2026

Procedure for Fabricating Biofunctional Nanofibers
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Bioinspired 3D Helical Nanofiber Metafabrics for Concurrent Thermal Management and Particulate Protection.

Xin-Long Qian1, Lijun Yang1, Zhi-Ting Bian1

  • 1National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.

ACS Nano
|April 23, 2026
PubMed
Summary
This summary is machine-generated.

Researchers developed 3D helical nanofiber metafabrics (HNMF) for passive radiative cooling and air purification. This innovative material offers high solar reflectance and particle filtration, addressing thermal stress and air quality concerns.

Keywords:
air purificationair-blown electrospinningdaytime radiative coolinghelical nanofibermetafabric

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Textile Engineering

Background:

  • Nonwoven polymer fibrous materials are used in passive radiative cooling, regulating visible to mid-infrared light.
  • Current radiative cooling fabrics lack essential air-moisture permeability, limiting their textile functionality.

Purpose of the Study:

  • To engineer 3D helical nanofibers for efficient radiative cooling and air purification.
  • To overcome the permeability limitations of existing radiative cooling materials.

Main Methods:

  • Cospun cellulose acetate (CA) and polyvinylidene fluoride-hexafluoropropylene (PVDF-HFP) via air-blown electrospinning to create helical fibers.
  • Utilized mechanical property mismatch and electrostatic airflow perturbation for fiber formation.
  • Characterized the optical properties and particle filtration efficiency of the resulting helical nanofiber metafabric (HNMF).

Main Results:

  • HNMF achieved ~96% solar reflectance and ~91% emission within the atmospheric transmission window.
  • Demonstrated >99.9% removal of PM0.3 particles with a low-pressure drop of 52.8 Pa.
  • Outdoor evaluations and simulations confirmed practical applicability for cooling and air purification.

Conclusions:

  • 3D helical nanofiber metafabrics offer a multifunctional solution for passive radiative cooling and air purification.
  • HNMF presents a scalable material platform for wearable personal protection and energy-efficient building solutions.
  • The material effectively addresses environmental thermal stress and particulate matter exposure.