1
|
Han D, Guo B, Li Y, Feng W, Liu K, Wu T, Wan Y, Wang L, Gao M, Liu Y, Yang L, Wei M, Yang S. Simultaneous photocatalytic degradation and SERS detection of tetracycline with self-sustainable and recyclable ternary PI/TiO 2/Ag flexible microfibers. Microsyst Nanoeng 2024; 10:39. [PMID: 38505466 PMCID: PMC10948822 DOI: 10.1038/s41378-023-00624-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 09/10/2023] [Accepted: 10/20/2023] [Indexed: 03/21/2024]
Abstract
Facile and efficient photocatalysts using sunlight, as well as fast and sensitive surface-enhanced Raman spectroscopy (SERS) substrates, are urgently needed for practical degradation of tetracycline (TC). To meet these requirements, a new paradigm for PI/TiO2/Ag organic‒inorganic ternary flexible microfibers based on semiconducting titanium dioxide (TiO2), the noble metal silver (Ag) and the conjugated polymer polyimide (PI) was developed by engineering a simple method. Under sunlight, the photocatalytic characteristics of the PI/TiO2/Ag flexible microfibers containing varying amounts of Ag quantum dots (QDs) were evaluated with photocatalytic degradation of TC in aqueous solution. The results demonstrated that the amount of Ag affected the photocatalytic activity. Among the tested samples, PI/TiO2/Ag-0.07 (93.1%) exhibited a higher photocatalytic degradation rate than PI/TiO2 (25.7%), PI/TiO2/Ag-0.05 (77.7%), and PI/TiO2/Ag-0.09 (63.3%). This observation and evaluation conducted in the present work strongly indicated a charge transfer mechanism. Moreover, the PI/TiO2/Ag-0.07 flexible microfibers exhibited highly sensitive SERS detection, as demonstrated by the observation of the Raman peaks for TC even at an extremely low concentration of 10-10 moles per liter. The excellent photocatalytic performance and SERS detection capability of the PI/TiO2/Ag flexible microfibers arose from the Schottky barrier formed between Ag and TiO2 and also from the outstanding plasmonic resonance and visible light absorptivity of Ag, along with immobilization by the PI. The successful synthesis of PI/TiO2/Ag flexible microfibers holds significant promise for sensitive detection and efficient photocatalytic degradation of antibiotics.
Collapse
Affiliation(s)
- Donglai Han
- School of Materials Science and Engineering, Changchun University of Science and Technology, 130022 Changchun, China
| | - Boyang Guo
- School of Materials Science and Engineering, Changchun University of Science and Technology, 130022 Changchun, China
| | - Yanru Li
- School of Materials Science and Engineering, Changchun University of Science and Technology, 130022 Changchun, China
| | - Wei Feng
- School of Materials Science and Engineering, Changchun University of Science and Technology, 130022 Changchun, China
| | - Keyan Liu
- School of Materials Science and Engineering, Changchun University of Science and Technology, 130022 Changchun, China
| | - Tianna Wu
- College of Science, Changchun University, 130022 Changchun, China
| | - Yuchun Wan
- School of Materials Science and Engineering, Changchun University of Science and Technology, 130022 Changchun, China
| | - Lili Wang
- College of Science, Changchun University, 130022 Changchun, China
| | - Ming Gao
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, 130103 Changchun, China
| | - Yang Liu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, 130103 Changchun, China
| | - Lili Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, 130103 Changchun, China
| | - Maobin Wei
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, 130103 Changchun, China
| | - Shuo Yang
- College of Science, Changchun University, 130022 Changchun, China
| |
Collapse
|
2
|
Chen T, Sun J, Xue N, Wang W, Luo Z, Liang Q, Zhou T, Quan H, Cai H, Tang K, Jiang K. Cu-doped SnO 2/rGO nanocomposites for ultrasensitive H 2S detection at low temperature. Microsyst Nanoeng 2023; 9:69. [PMID: 37260769 PMCID: PMC10227056 DOI: 10.1038/s41378-023-00517-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/02/2023] [Accepted: 03/01/2023] [Indexed: 06/02/2023]
Abstract
Hydrogen sulfide (H2S) detection remains a significant concern and the sensitivity, selectivity, and detection limit must be balanced at low temperatures. Herein, we utilized a facile solvothermal method to prepare Cu-doped SnO2/rGO nanocomposites that have emerged as promising candidate materials for H2S sensors. Characterization of the Cu-SnO2/rGO was carried out to determine its surface morphology, chemical composition, and crystal defects. The optimal sensor response for 10 ppm H2S was ~1415.7 at 120 °C, which was over 320 times higher than that seen for pristine SnO2 CQDs (Ra/Rg = 4.4) at 280 °C. Moreover, the sensor material exhibited excellent selectivity, a superior linear working range (R2 = 0.991, 1-150 ppm), a fast response time (31 s to 2 ppm), and ppb-level H2S detection (Ra/Rg = 1.26 to 50 ppb) at 120 °C. In addition, the sensor maintained a high performance even at extremely high humidity (90%) and showed outstanding long-term stability. These superb H2S sensing properties were attributed to catalytic sensitization by the Cu dopant and a synergistic effect of the Cu-SnO2 and rGO, which offered abundant active sites for O2 and H2S absorption and accelerated the transfer of electrons/holes.
Collapse
Affiliation(s)
- Tingting Chen
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, 100194 Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Jianhai Sun
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, 100194 Beijing, China
| | - Ning Xue
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, 100194 Beijing, China
| | - Wen Wang
- State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, 100190 Beijing, China
| | - Zongchang Luo
- Guangxi Key Laboratory of Intelligent Control and Maintenance of Power Equipment, School of Electronic Engineering, Guangxi University, Nanning, 530004 Guangxi China
- Electric Power Research Institute of Guangxi Power Grid Co., Ltd., Nanning, 530013 Guangxi China
| | - Qinqin Liang
- Guangxi Key Laboratory of Intelligent Control and Maintenance of Power Equipment, School of Electronic Engineering, Guangxi University, Nanning, 530004 Guangxi China
- Electric Power Research Institute of Guangxi Power Grid Co., Ltd., Nanning, 530013 Guangxi China
| | - Tianye Zhou
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, 100194 Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Hao Quan
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, 100194 Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Haoyuan Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, 100194 Beijing, China
| | - Kangsong Tang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, 100194 Beijing, China
| | - Kaisheng Jiang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, 100194 Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, 100049 Beijing, China
| |
Collapse
|
3
|
Gan Z, Cai J, Sun Z, Chen L, Sun C, Yu J, Liang Z, Min S, Han F, Liu Y, Cheng X, Yu S, Cui D, Li WD. High-fidelity and clean nanotransfer lithography using structure-embedded and electrostatic-adhesive carriers. Microsyst Nanoeng 2023; 9:8. [PMID: 36636368 PMCID: PMC9829746 DOI: 10.1038/s41378-022-00476-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 09/17/2022] [Accepted: 11/16/2022] [Indexed: 06/17/2023]
Abstract
Metallic nanostructures are becoming increasingly important for both fundamental research and practical devices. Many emerging applications employing metallic nanostructures often involve unconventional substrates that are flexible or nonplanar, making direct lithographic fabrication very difficult. An alternative approach is to transfer prefabricated structures from a conventional substrate; however, it is still challenging to maintain high fidelity and a high yield in the transfer process. In this paper, we propose a high-fidelity, clean nanotransfer lithography method that addresses the above challenges by employing a polyvinyl acetate (PVA) film as the transferring carrier and promoting electrostatic adhesion through triboelectric charging. The PVA film embeds the transferred metallic nanostructures and maintains their spacing with a remarkably low variation of <1%. When separating the PVA film from the donor substrate, electrostatic charges are generated due to triboelectric charging and facilitate adhesion to the receiver substrate, resulting in a high large-area transfer yield of up to 99.93%. We successfully transferred the metallic structures of a variety of materials (Au, Cu, Pd, etc.) with different geometries with a <50-nm spacing, high aspect ratio (>2), and complex 3D structures. Moreover, the thin and flexible carrier film enables transfer on highly curved surfaces, such as a single-mode optical fiber with a curvature radius of 62.5 μm. With this strategy, we demonstrate the transfer of metallic nanostructures for a compact spectrometer with Cu nanogratings transferred on a convex lens and for surface-enhanced Raman spectroscopy (SERS) characterization on graphene with reliable responsiveness.
Collapse
Affiliation(s)
- Zhuofei Gan
- Department of Mechanical Engineering, University of Hong Kong, Hong Kong, China
- School of Microelectronics, Southern University of Science and Technology, Shenzhen, China
| | - Jingxuan Cai
- Department of Mechanical Engineering, University of Hong Kong, Hong Kong, China
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, China
| | - Zhao Sun
- Department of Mechanical Engineering, University of Hong Kong, Hong Kong, China
| | - Liyang Chen
- Department of Mechanical Engineering, University of Hong Kong, Hong Kong, China
| | - Chuying Sun
- Department of Mechanical Engineering, University of Hong Kong, Hong Kong, China
| | - Junyi Yu
- The Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Zeyu Liang
- The Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Siyi Min
- Department of Mechanical Engineering, University of Hong Kong, Hong Kong, China
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, China
| | - Fei Han
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, China
| | - Yu Liu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, China
| | - Xing Cheng
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, China
| | - Shuhui Yu
- The Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Dehu Cui
- School of Microelectronics, Southern University of Science and Technology, Shenzhen, China
| | - Wen-Di Li
- Department of Mechanical Engineering, University of Hong Kong, Hong Kong, China
| |
Collapse
|
4
|
Ai B, Fan Z, Wong ZJ. Plasmonic-perovskite solar cells, light emitters, and sensors. Microsyst Nanoeng 2022; 8:5. [PMID: 35070349 PMCID: PMC8752666 DOI: 10.1038/s41378-021-00334-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 10/06/2021] [Accepted: 10/28/2021] [Indexed: 06/14/2023]
Abstract
The field of plasmonics explores the interaction between light and metallic micro/nanostructures and films. The collective oscillation of free electrons on metallic surfaces enables subwavelength optical confinement and enhanced light-matter interactions. In optoelectronics, perovskite materials are particularly attractive due to their excellent absorption, emission, and carrier transport properties, which lead to the improved performance of solar cells, light-emitting diodes (LEDs), lasers, photodetectors, and sensors. When perovskite materials are coupled with plasmonic structures, the device performance significantly improves owing to strong near-field and far-field optical enhancements, as well as the plasmoelectric effect. Here, we review recent theoretical and experimental works on plasmonic perovskite solar cells, light emitters, and sensors. The underlying physical mechanisms, design routes, device performances, and optimization strategies are summarized. This review also lays out challenges and future directions for the plasmonic perovskite research field toward next-generation optoelectronic technologies.
Collapse
Affiliation(s)
- Bin Ai
- Department of Aerospace Engineering, Texas A&M University, College Station, TX 77843 USA
- School of Microelectronics and Communication Engineering, Chongqing University, 400044 Chongqing, P.R. China
- Chongqing Key Laboratory of Bioperception & Intelligent Information Processing, 400044 Chongqing, P.R. China
| | - Ziwei Fan
- Department of Aerospace Engineering, Texas A&M University, College Station, TX 77843 USA
| | - Zi Jing Wong
- Department of Aerospace Engineering, Texas A&M University, College Station, TX 77843 USA
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843 USA
| |
Collapse
|
5
|
Javor J, Ewoldt JK, Cloonan PE, Chopra A, Luu RJ, Freychet G, Zhernenkov M, Ludwig K, Seidman JG, Seidman CE, Chen CS, Bishop DJ. Probing the subcellular nanostructure of engineered human cardiomyocytes in 3D tissue. Microsyst Nanoeng 2021; 7:10. [PMID: 34567727 PMCID: PMC8433147 DOI: 10.1038/s41378-020-00234-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 11/13/2020] [Accepted: 12/03/2020] [Indexed: 05/15/2023]
Abstract
The structural and functional maturation of human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) is essential for pharmaceutical testing, disease modeling, and ultimately therapeutic use. Multicellular 3D-tissue platforms have improved the functional maturation of hiPSC-CMs, but probing cardiac contractile properties in a 3D environment remains challenging, especially at depth and in live tissues. Using small-angle X-ray scattering (SAXS) imaging, we show that hiPSC-CMs matured and examined in a 3D environment exhibit a periodic spatial arrangement of the myofilament lattice, which has not been previously detected in hiPSC-CMs. The contractile force is found to correlate with both the scattering intensity (R 2 = 0.44) and lattice spacing (R 2 = 0.46). The scattering intensity also correlates with lattice spacing (R 2 = 0.81), suggestive of lower noise in our structural measurement than in the functional measurement. Notably, we observed decreased myofilament ordering in tissues with a myofilament mutation known to lead to hypertrophic cardiomyopathy (HCM). Our results highlight the progress of human cardiac tissue engineering and enable unprecedented study of structural maturation in hiPSC-CMs.
Collapse
Affiliation(s)
- Josh Javor
- Department of Mechanical Engineering, Boston University, Boston, MA 02215 USA
| | - Jourdan K. Ewoldt
- Department of Biomedical Engineering, Boston University, Boston, MA 02215 USA
| | - Paige E. Cloonan
- Department of Biomedical Engineering, Boston University, Boston, MA 02215 USA
| | - Anant Chopra
- Department of Biomedical Engineering, Boston University, Boston, MA 02215 USA
| | - Rebeccah J. Luu
- Department of Biomedical Engineering, Boston University, Boston, MA 02215 USA
| | | | | | - Karl Ludwig
- Department of Physics, Boston University, Boston, MA 02215 USA
- Division of Materials Science, Boston University, Boston, Massachusetts 02215 USA
| | | | | | - Christopher S. Chen
- Department of Mechanical Engineering, Boston University, Boston, MA 02215 USA
- Department of Biomedical Engineering, Boston University, Boston, MA 02215 USA
| | - David J. Bishop
- Department of Mechanical Engineering, Boston University, Boston, MA 02215 USA
- Department of Biomedical Engineering, Boston University, Boston, MA 02215 USA
- Department of Physics, Boston University, Boston, MA 02215 USA
- Division of Materials Science, Boston University, Boston, Massachusetts 02215 USA
- Department of Electrical Engineering, Boston University, Boston, MA 02215 USA
| |
Collapse
|
6
|
Sarigamala KK, Shukla S, Struck A, Saxena S. Rationally engineered 3D-dendritic cell-like morphologies of LDH nanostructures using graphene-based core-shell structures. Microsyst Nanoeng 2019; 5:65. [PMID: 34567615 PMCID: PMC8433191 DOI: 10.1038/s41378-019-0114-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 08/12/2019] [Accepted: 09/09/2019] [Indexed: 05/30/2023]
Abstract
Functionalization of graphene-based materials using chemical moieties not only modify the electronic structure of the underlying graphene but also enable in limited enhancement of targeted properties. Surface modification of graphene-based materials using other nanostructures enhances the effective properties by minimally modifying the properties of pristine graphene backbone. In this pursuit, we have synthesized bio-inspired hierarchical nanostructures based on Ni-Co layered double hydroxide on reduced graphene oxide core-shells using template based wet chemical approach. The material synthesized have been characterized structurally and electrochemically. The fabricated dendritic morphology of the composite delivers a high specific capacity of 1056 Cg-1. A cost effective solid state hybrid supercapacitor device was also fabricated using the synthesized electrode material which shows excellent performance with high energy density and fast charging capability.
Collapse
Affiliation(s)
- Karthik Kiran Sarigamala
- Centre for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai, MH 400076 India
| | - Shobha Shukla
- Nanostructures Engineering and Modeling Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai, MH 400076 India
| | - Alexander Struck
- Faculty of Technology and Bionics, Rhein-Waal University of Applied Sciences, 47533 Kleve, Germany
| | - Sumit Saxena
- Nanostructures Engineering and Modeling Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai, MH 400076 India
| |
Collapse
|
7
|
Zheng M, Chen Y, Liu Z, Liu Y, Wang Y, Liu P, Liu Q, Bi K, Shu Z, Zhang Y, Duan H. Kirigami-inspired multiscale patterning of metallic structures via predefined nanotrench templates. Microsyst Nanoeng 2019; 5:54. [PMID: 31814993 PMCID: PMC6885514 DOI: 10.1038/s41378-019-0100-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 08/18/2019] [Accepted: 08/19/2019] [Indexed: 05/06/2023]
Abstract
Reliable fabrication of multiscale metallic patterns with precise geometry and size at both the nanoscale and macroscale is of importance for various applications in electronic and optical devices. The existing fabrication processes, which usually involve film deposition in combination with electron-beam patterning, are either time-consuming or offer limited precision. Inspired by the kirigami, an ancient handicraft art of paper cutting, this work demonstrates an electron-beam patterning process for multiscale metallic structures with significantly enhanced efficiency and precision. Similar to the kirigami, in which the final pattern is defined by cutting its contour in a paper and then removing the unwanted parts, we define the target multiscale structures by first creating nanotrench contours in a metallic film via an electron-beam-based process and then selectively peeling the separated film outside the contours. Compared with the conventional approach, which requires the exposure of the whole pattern, much less exposure area is needed for nanotrench contours, thus enabling reduced exposure time and enhanced geometric precision due to the mitigated proximity effect. A theoretical model based on interface mechanics allows a clear understanding of the nanotrench-assisted selective debonding behaviour in the peeling process. By using this fabrication process, multiscale metallic structures with sub-10-nm up to submillimetre features can be reliably achieved, having potential applications for anti-counterfeiting and gap-plasmon-enhanced spectroscopy.
Collapse
Affiliation(s)
- Mengjie Zheng
- School of Physics and Electronics, State Key laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, 410082 Changsha, People’s Republic of China
- College of Mechanical and Vehicle Engineering, Hunan University, 410082 Changsha, People’s Republic of China
| | - Yiqin Chen
- College of Mechanical and Vehicle Engineering, Hunan University, 410082 Changsha, People’s Republic of China
| | - Zhi Liu
- AML, Department of Engineering Mechanics; Center for Flexible Electronics Technology, Tsinghua University, 100084 Beijing, People’s Republic of China
| | - Yuan Liu
- AML, Department of Engineering Mechanics; Center for Flexible Electronics Technology, Tsinghua University, 100084 Beijing, People’s Republic of China
| | - Yasi Wang
- College of Mechanical and Vehicle Engineering, Hunan University, 410082 Changsha, People’s Republic of China
| | - Peng Liu
- College of Mechanical and Vehicle Engineering, Hunan University, 410082 Changsha, People’s Republic of China
| | - Qing Liu
- College of Mechanical and Vehicle Engineering, Hunan University, 410082 Changsha, People’s Republic of China
| | - Kaixi Bi
- School of Physics and Electronics, State Key laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, 410082 Changsha, People’s Republic of China
| | - Zhiwen Shu
- College of Mechanical and Vehicle Engineering, Hunan University, 410082 Changsha, People’s Republic of China
| | - Yihui Zhang
- AML, Department of Engineering Mechanics; Center for Flexible Electronics Technology, Tsinghua University, 100084 Beijing, People’s Republic of China
| | - Huigao Duan
- School of Physics and Electronics, State Key laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, 410082 Changsha, People’s Republic of China
- College of Mechanical and Vehicle Engineering, Hunan University, 410082 Changsha, People’s Republic of China
| |
Collapse
|