We report the fabrication of three-dimensional periodic metal nickel nanostructures achieved by the combination of femtosecond laser-induced two-photon polymerization and electroless plating technology. We can control the deposition speed of 10 nm per second by adjusting the reaction time. The thermal stability is good under 500 °C for the three-dimensional graphite-lattice polymer structure with 200 nm nickel film. Optical reflectivity and thermal emission measurements under 550 °C showed that the fabricated metallic structure was thermally excited and emitted light at λ = 4.50, 4.95 μm. The emission peak wavelengths agree with the absorption peaks. These data demonstrate that creating metallic photonic crystals by incorporation of metals to laser-fabricated templates is a simple and cost-efficient method. The emitters can work at such low temperatures, which is more important for realistic operation in applications.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/c3cp44051f | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
3D bioprinting: Advancing the future of food production layer by layer.
Food Chem
January 2025
Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea; Department of Applied Biotechnology, University of Science and Technology (UST), Daejeon 34113, Republic of Korea. Electronic address:
3D bioprinting is an advanced manufacturing technique that involves the precise layer-by-layer deposition of biomaterials, such as cells, growth factors, and biomimetic scaffolds, to create three-dimensional living structures. It essentially combines the complexity of biology with the principles of 3D printing, making it possible to fabricate complex biological structures with extreme control and accuracy. This review discusses how 3D bioprinting is developing as an essential step in the creation of alternative food such as cultured meat and seafood.
View Article and Find Full Text PDFIliosacral screw osteosynthesis - state of the art.
Arch Orthop Trauma Surg
January 2025
Department of Orthopedics and Traumatology, University Medical Center Mainz, Mainz, Germany.
Iliosacral screw osteosynthesis is a widely recognized technique for stabilizing unstable posterior pelvic ring injuries, offering notable advantages, including enhanced mechanical stability, minimal invasiveness, reduced blood loss, and lower infection rates. However, the procedure presents technical challenges due to the complex anatomy of the sacrum and the proximity of critical neurovascular structures. While conventional fluoroscopy remains the primary method for intraoperative guidance, precise preoperative planning using multiplanar reconstructions and three-dimensional volume rendering is crucial for ensuring accurate placement of iliosacral or transsacral screws.
View Article and Find Full Text PDFVat-Based 3D-Bioprinted Scaffolds from Photocurable Bacterial Levan for Osteogenesis and Immunomodulation.
Biomacromolecules
January 2025
Department of Materials Engineering, Indian Institute of Science, C. V. Raman Avenue, Bangalore 560012, India.
Emerging techniques of additive manufacturing, such as vat-based three-dimensional (3D) bioprinting, offer novel routes to prepare personalized scaffolds of complex geometries. However, there is a need to develop bioinks suitable for clinical translation. This study explored the potential of bacterial-sourced methacrylate levan (LeMA) as a bioink for the digital light processing (DLP) 3D bioprinting of bone tissue scaffolds.
View Article and Find Full Text PDF3D Digital Anatomical Models Based on Computed Tomographic Morphometric Analysis of C1 and C2 for Surgical Navigation.
J Clin Med
January 2025
Department of Orthopaedics, Phramongkutklao Hospital and College of Medicine, Bangkok 10400, Thailand.
Injuries involving the Atlas (C1) and Axis (C2) vertebrae of the cervical spine present significant clinical challenges due to their complex anatomy and potential for severe neurological impairment. Traditional imaging methods often lack the detailed visualization required for precise surgical planning. This study aimed to develop high-resolution 3D models of the C1 and C2 vertebrae to perform a comprehensive morphometric analysis, identify gender differences, and assess bilateral symmetry to enhance surgical accuracy.
View Article and Find Full Text PDFThree-Dimensional Scanning Virtual Aperture Imaging with Metasurface.
Sensors (Basel)
January 2025
Huawei Technologies Co., Ltd., Chengdu 610000, China.
Metasurface-based imaging is attractive due to its low hardware costs and system complexity. However, most of the current metasurface-based imaging systems require stochastic wavefront modulation, complex computational post-processing, and are restricted to 2D imaging. To overcome these limitations, we propose a scanning virtual aperture imaging system.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!