ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Meng-Meng Song,Jing Li,Hao Lu,Jia-Xin Wang,Min-Feng Zeng,Xu-Wei Qi,Tao Zhou,Junhua Zhang,Bang-Jing Li,Sheng Zhang
Fabrication of dual-color fluorescent patterning with multiple sophisticated properties through a facile strategy is a great challenge, although it is highly desirable for the rapid development of modern society. Herein, we explore a novel strategy to realize dual-color fluorescent patterning by utilizing laser writing to generate local photoheat for rearrangement of electron groups containing n and π electrons to adjust electron delocalization. A polyurethane containing T-shaped quadruple hydrogen bonding moieties (IU-PUX) is designed to provide a rigid and strong H-bonding donor–acceptor structure. It is found that the fluorescence of the materials undergoes a transition from blue to cyan, green, and yellow successively upon heating due to the formation of electron delocalization domains of varying sizes through the rearrangement of hierarchical hydrogen bonds. The patterning process is efficient and cost-effective. The pattern has high resolution and can be erased on demand. In addition, the IU-PUX exhibits good self-healing and excellent adhesion properties due to the presence of a large amount of hydrogen bonds. The IU-PUX film with laser written patterns can be used as labels that could be easily adhered to various object surfaces and can be easily peeled off at high temperatures when needed, avoiding heavy consumption of single-use or transient labels. This study provides a facile and high-efficiency method to fabricate dual-color label materials with multiple properties.
研究领域:
材料科学
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光学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-10
·
IF 14.7
Zheng Wenyan,Wang Zhuo,Chen Weilin,Zhang Mengchao,Li Hui,Yang Guang,Xu Qiang,Qiao Xvsheng,Tan Dezhi,Zhang Junjie,Qiu Jianrong,Qian Guodong,Fan Xianping
The direct laser writing (DLW) of photoluminescent metal clusters is inspiring intensive research in functional glasses. However, understanding the influence of the host structure on cluster formation and visualizing DLW-induced clusters at the atomic scale remains challenging. In this work, we develop a highly photosensitive fluorophosphate glass through fluorine incorporation. The addition of fluorine establishes a conducive environment for Ag + ions before DLW and enhances the availability of reducing agents and diffusion pathways during DLW. These advantages facilitate the formation of Ag clusters under low-energy single-pulsed DLW. Increasing laser energy results in a combination of Ag clusters and glasses defect, forming a dot + ring photoluminescent pattern. Atom probe tomography (APT), a technique capable of mapping the elemental spatial distribution and identifying clustering, is employed to gain more information on laser-induced clusters. Comparison of APT results between samples without and with DLW reveals the formation of Ag clusters after laser writing. The design concept and characterization enrich the understanding of Ag cluster behavior in glasses. This knowledge opens the possibility of rational design of clusters confined in glasses and inspires their synthesis for various applications.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Keliang Liu,Haibo Ding,Zhejun Chong,Yi Zeng,Yanfang Niu,Junning Zhang,Youlong Kang,Xin Du,Zhongze Gu
Photonic crystal hydrogels (PCHs) are promising materials for in-situ sensing demands in cell incubation systems such as microfluidic devices. However, the lack of ability to precisely construct and settle PCH sensors limits their future development. In this paper, we developed a versatile and highly controllable strategy to fabricate PCH sensing systems via direct laser writing (DLW) technology. We show that, PCH microsensors with precise geometries and diverse compositions could be exactly generated at desired positions using two-photon lithography (TPL). With such smart sensors, in-situ and spatiotemporal monitor of environmental parameters in liquid microdomains could easily be achieved using a microscope. This is demonstrated by generating PCH sensors for in-situ pH and metal ion strength analysis in microfluidic devices.
研究领域:
材料科学
·
生物医学工程
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2018
·
IF 5.667
Rui You,Dong-Dong Han,Fangmeng Liu,Yong-Lai Zhang,Geyu Lu
In this work, we reported the fabrication of flexible NO 2 sensors arrays operating at room temperature on a composite film of In 2 O 3 and graphene oxide (GO) by direct laser writing (DLW) technology. The laser treatment not only induced the photoreduction of GO , leading to a highly porous structure due to the removal of oxygen groups, but also permitted mask-free patterning through a programmable manner, enabling flexible integration of sensor arrays on any substrates. We demonstrated the fabrication of a 2 × 4 NO 2 sensors array on a flexible polyimide substrate within 10 min. Our NO 2 sensors based on In 2 O 3 and reduced GO (In 2 O 3 @RGO) show liner NO 2 sensing properties at room temperature, good responsivity and recovery properties, as well as excellent selectivity towards NO 2 . We deem that the DLW fabrication of flexible NO 2 sensorsarrays may contribute to the development of flexible electronics.
研究领域:
材料科学
·
传感器技术
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纳米材料
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环境监测
·
柔性电子学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）