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Two-Photon Polymeri...
Two-Photon Polymerization Printing with High Metal Nanoparticle Loading
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- Kilic, Nuzhet I. (författare)
- Uppsala universitet,KTH,Biomedicinsk fysik och röntgenfysik,Department of Materials Science and Engineering, Microsystems Technology, Uppsala University, SE 75103 Uppsala, Sweden,Mikrosystemteknik,Department of Applied Physics, Biomedical and X-ray Physics, KTH Royal Institute of Technology, SE 10691 Stockholm, Sweden
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- Saladino, Giovanni M. (författare)
- KTH,Biomedicinsk fysik och röntgenfysik,Department of Applied Physics, Biomedical and X-ray Physics, KTH Royal Institute of Technology, SE 10691 Stockholm, Sweden
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- Johansson, Sofia (författare)
- Uppsala universitet,Mikrosystemteknik,Science for Life Laboratory, SciLifeLab,EMBLA
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- Shen, Rickard (författare)
- Kanthal AB, SE 73427 Hallstahammar, Sweden
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- McDorman, Cacie (författare)
- Alleima Advanced Materials, Palm Coast, 32164, FL, United States,Alleima Advanced Materials, Palm Coast, Florida 32164, United States
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- Toprak, Muhammet, 1973- (författare)
- KTH,Biomedicinsk fysik och röntgenfysik,Department of Applied Physics, Biomedical and X-ray Physics, KTH Royal Institute of Technology, SE 10691 Stockholm, Sweden
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- Johansson, Stefan, 1960- (författare)
- Uppsala universitet,Mikrosystemteknik
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(creator_code:org_t)
- American Chemical Society (ACS), 2023
- 2023
- Engelska.
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Ingår i: ACS Applied Materials and Interfaces. - : American Chemical Society (ACS). - 1944-8244 .- 1944-8252. ; 15:42, s. 49794-49804
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Two-photon polymerization (2PP) is an efficient technique to achieve high-resolution, three-dimensional (3D)-printed complex structures. However, it is restricted to photocurable monomer combinations, thus presenting constraints when aiming at attaining functionally active resist formulations and structures. In this context, metal nanoparticle (NP) integration as an additive can enable functionality and pave the way to more dedicated applications. Challenges lay on the maximum NP concentrations that can be incorporated into photocurable resist formulations due to the laser-triggered interactions, which primarily originate from laser scattering and absorption, as well as the limited dispersibility threshold. In this study, we propose an approach to address these two constraints by integrating metallic Rh NPs formed ex situ, purposely designed for this scope. The absence of surface plasmon resonance (SPR) within the visible and near-infrared spectra, coupled with the limited absorption value measured at the laser operating wavelength (780 nm), significantly limits the laser-induced interactions. Moreover, the dispersibility threshold is increased by engineering the NP surface to be compatible with the photocurable resin, permitting us to achieve concentrations of up to 2 wt %, which, to our knowledge, is significantly higher than the previously reported limit (or threshold) for embedded metal NPs. Another distinctive advantage of employing Rh NPs is their role as promising contrast agents for X-ray fluorescence (XRF) bioimaging. We demonstrated the presence of Rh NPs within the whole 2PP-printed structure and emphasized the potential use of NP-loaded 3D-printed nanostructures for medical devices.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
Nyckelord
- additive manufacturing
- metal nanoparticles
- nanoparticle surface engineering
- two-photon polymerization
- X-ray fluorescence
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