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3D-printable phosphorescent woody materials.

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  • 1State Key Laboratory of Woody Oil Resources Utilization, Northeast Forestry University, Harbin, China.

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|March 12, 2026
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Summary
This summary is machine-generated.

Researchers developed CX-Wood, a sustainable biophosphor for 3D printing. This novel material, derived from wood, exhibits room-temperature phosphorescence (RTP) and enables direct ink writing (DIW) of luminescent constructs.

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Area of Science:

  • Materials Science
  • Biomaterials Engineering
  • Sustainable Chemistry

Background:

  • Developing sustainable phosphorescent materials for advanced manufacturing is challenging.
  • Existing methods often involve complex synthesis or non-renewable resources.
  • Additive manufacturing requires materials with specific rheological and luminescent properties.

Purpose of the Study:

  • To engineer a sustainable biophosphor with room-temperature phosphorescence (RTP) for additive manufacturing.
  • To develop a direct ink writing (DIW) process for creating 3D phosphorescent wood constructs.
  • To establish a green manufacturing platform for smart luminescent materials.

Main Methods:

  • Rational molecular design by grafting carboxyl-functional groups onto lignocellulosic matrices (CX-Wood).
  • Structural characterization using techniques to analyze cellulose microfibrils and hydrogen-bonding networks.
  • Rheological analysis to optimize ink properties for DIW.
  • 3D printing of phosphorescent constructs using the developed wood composite ink.

Main Results:

  • Carboxylation induced cellulose lattice distortion and enhanced hydrogen bonding, creating a rigid structure for triplet-state stabilization.
  • Improved room-temperature phosphorescent performance was achieved.
  • Optimized rheological behavior resulted in an aqueous-based phosphorescent ink with high print fidelity.
  • Architecturally complex 3D phosphorescent constructs with afterglow emission were successfully prepared.

Conclusions:

  • CX-Wood, a biomass-derived platform, offers a sustainable route to RTP materials.
  • The dual functionality of carboxyl groups enables both structural stabilization for phosphorescence and printability.
  • This research provides a green model for manufacturing tailored, smart luminescent materials via additive manufacturing.