Two-photon lithography enables fabrication of complex 3D structures with nanoscale features. However, its utility is limited by the lack of knowledge about the process-property relationship. Here, we have designed micro-electro-mechanical systems (MEMS)-based miniaturized tensile testers to measure the stress-strain response of the individual polymer nanowires. Measurements demonstrate that geometrically indistinguishable nanowires can exhibit widely varying material behavior ranging from brittle to soft plastic based on processing conditions. In addition, a distinct size-scaling effect was observed for post-processed nanowires wherein thinner nanowires have up to 2 times higher properties. The process-property characterization presented here will be critical for predictive design of functional 3D structures with nanoscale features.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9071184 | PMC |
| http://dx.doi.org/10.1039/c9ra02350j | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Stretchable, Self-Healable, and Durable Conductive Elastomer Derived from a Rationally Designed Covalently Cross-Linked Network.
ACS Appl Mater Interfaces
January 2025
School of Medicine, Huanghe Science and Technology University, Zhengzhou 450061, P. R. China.
Silver nanowire (Ag NW)-based elastic conductors have been considered a promising candidate for key stretchable electrodes in wearable devices. However, the weak interface interaction of Ag NWs and elastic substrates leads to poor durability of electronic devices. For everyday usage, an additional self-healing ability is required to resist scratching and damage.
View Article and Find Full Text PDFInterfacial functionalization and capillary force welding of enhanced silver nanowire-cellulose nanofiber composite electrodes for electroluminescent devices.
Int J Biol Macromol
December 2024
Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, PR China; Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangzhou 510640, PR China.
The development of flexible, intelligent, and lightweight optoelectronic devices based on flexible transparent conductive electrodes (FTCEs) utilizing silver nanowires (AgNWs) has garnered increasing attention. However, achieving low surface resistance, strong adhesion to the flexible substrate, low surface roughness, and green degradability remains a challenge. Here, a composite electrode combining natural polymer cellulose nanofibers (TCNFs) with AgNWs was prepared.
View Article and Find Full Text PDFUnusual Endotaxy Growth of Hexagonal Nanosheets by the Self-Assembly of a Homopolymer.
Angew Chem Int Ed Engl
December 2024
Tongji University, School of Material Science and Engineering, CHINA.
A classical crystallization usually grows epitaxially from a crystal nucleus. Presented in this study is an unusual endotaxy growth manner of a crystalline homopolymer to form hexagonal nanosheets. The amphiphilic homopolymer, poly(3-(4-(phenyldiazenyl)phenoxy)propyl methacrylate) (PAzoPMA), is first annealed in isopropanol to afford a hexagonal nut-like structure.
View Article and Find Full Text PDFSilver nanowire/gold nanosphere binary plasma-assembled membranes for sensitive SERS detection of homocysteine.
Mikrochim Acta
December 2024
School of Materials and Chemical Engineering, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, Fujian, 350108, China.
Silver nanowire (Ag NW)/gold nanosphere (Au NS) binary plasma films were prepared using plasma coupling between Ag NWs and Au NSs. The plasma films formed by combining these two noble metals showed better sensitivity for SERS detection with a minimum detection concentration of 10 M for R6G compared to pure Ag NWs or Au NSs. After rational optimisation of the substrate preparation process, the substrate showed good homogeneity, reproducibility and stability.
View Article and Find Full Text PDFFacile On-Substrate Fabrication of Silver Coordination Polymer Nanowires for Sustainable and Efficient Water Disinfection.
ACS Appl Mater Interfaces
December 2024
Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.
Silver, as the oldest antibacterial material, has been almost replaced by other alternatives for its insufficient activity or potential side-effects on the ecosystem due to the over-release of Ag ions (Ag). Herein, a facile and general strategy is developed to on-substrate fabricate silver coordination polymer nanowire arrays (Ag CPN) by simply immersing Ag-containing substrates into cationic surfactant solution at room temperature. Such a Ag CPN not only provides high-surface-area nano-biointerfaces for destroying microorganisms via physicomechanical interactions but also acts as a safe Ag reservoir, steadily releasing Ag at a relatively high but safe level (∼40 ppb, but lower than the safe level of 100 ppb).
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!