TY - JOUR
T1 - Strategies for Integrating Metal Nanoparticles with Two-Photon Polymerization Process
T2 - Toward High Resolution Functional Additive Manufacturing
AU - Im, Jisun
AU - Liu, Yaan
AU - Hu, Qin
AU - Trindade, Gustavo F.
AU - Parmenter, Christopher
AU - Fay, Michael
AU - He, Yinfeng
AU - Irvine, Derek J.
AU - Tuck, Christopher
AU - Wildman, Ricky D.
AU - Hague, Richard
AU - Turyanska, Lyudmila
N1 - Funding Information:
J.I. and Y.L. contributed equally to this work. This work was funded by the Engineering and Physical Sciences Research Council [grant number EP/P031684/1] and USAF EOARD award [grant number FA9550‐17‐1‐0186]. Access to analytical instruments and facilities was funded by Engineering and Physical Sciences Research Council strategic equipment grant [grant number EP/P029868/1] (3D orbiSIMS facilities), [EP/S021434/1] (FIB‐SEM) and [EP/L011883/1] (SEM and TEM). The authors acknowledged access to the facilities at the Nanoscale and Microscale Research Centre and assistance with measurement from Dr Emily Smith for XPS and Dr Graham Rance for Raman studies.
Publisher Copyright:
© 2023 The Authors. Advanced Functional Materials published by Wiley-VCH GmbH.
PY - 2023/1/4
Y1 - 2023/1/4
N2 - This study reports the successful fabrication of complex 3D metal nanoparticle–polymer nanocomposites using two-photon polymerization (2PP). Three complementary strategies are detailed: in situ formation of metal nanoparticles (MeNPs) through a single-step photoreduction process, integration of pre-formed MeNPs into 2PP resin, and site-selective MeNPs decoration of 3D 2PP structures. In the in situ formation strategy, a phase-transfer method is applied to transfer silver and copper ions from an aqueous phase into a toluene solvent to disperse them in photoreactive monomers.The addition of a photosensitive dye, coumarin 30, facilitated the reduction of silver ions and improved the distribution of silver nanoparticles (AgNPs). This strategy is successfully used to produce other MeNPs, such as Cu and Au. The integration of pre-formed MeNPs enabled highly controlled NP size distribution within the 2PP 3D structures with high-fidelity To enable selective decoration of 2PP 3D surfaces with MeNPs, a multimaterial strategy is developed, with one of the resins designed for thiol-ene reaction, which demonstrated selective binding to AuNPs. The successful development of complementary strategies for integration of MeNPs into 2PP resins offers exciting opportunities for fabrication of MeNP composites with sub-micron resolution for applications from photonics to metamaterials and drug delivery.
AB - This study reports the successful fabrication of complex 3D metal nanoparticle–polymer nanocomposites using two-photon polymerization (2PP). Three complementary strategies are detailed: in situ formation of metal nanoparticles (MeNPs) through a single-step photoreduction process, integration of pre-formed MeNPs into 2PP resin, and site-selective MeNPs decoration of 3D 2PP structures. In the in situ formation strategy, a phase-transfer method is applied to transfer silver and copper ions from an aqueous phase into a toluene solvent to disperse them in photoreactive monomers.The addition of a photosensitive dye, coumarin 30, facilitated the reduction of silver ions and improved the distribution of silver nanoparticles (AgNPs). This strategy is successfully used to produce other MeNPs, such as Cu and Au. The integration of pre-formed MeNPs enabled highly controlled NP size distribution within the 2PP 3D structures with high-fidelity To enable selective decoration of 2PP 3D surfaces with MeNPs, a multimaterial strategy is developed, with one of the resins designed for thiol-ene reaction, which demonstrated selective binding to AuNPs. The successful development of complementary strategies for integration of MeNPs into 2PP resins offers exciting opportunities for fabrication of MeNP composites with sub-micron resolution for applications from photonics to metamaterials and drug delivery.
KW - gold nanoparticles
KW - metal nanoparticles
KW - micro additive manufacturing
KW - multi-material printing
KW - silver nanoparticles
KW - Two-photon polymerization
UR - http://www.scopus.com/inward/record.url?scp=85145712982&partnerID=8YFLogxK
U2 - 10.1002/adfm.202211920
DO - 10.1002/adfm.202211920
M3 - Article
AN - SCOPUS:85145712982
SN - 1616-301X
VL - 33
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 39
M1 - 2211920
ER -
