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Grein-Iankovski A, de Oliveira Braga KA, Legendre DF, Cardoso PFG, Loh W. Bio-Inspired Magnetically Responsive Silicone Cilia: Fabrication Strategy and Interaction with Biological Mucus. Bioengineering (Basel) 2024; 11:261. [PMID: 38534535 DOI: 10.3390/bioengineering11030261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/28/2024] Open
Abstract
Cilia are biological structures essential to drive the mobility of secretions and maintain the proper function of the respiratory airways. However, this motile self-cleaning process is significantly compromised in the presence of silicone tracheal prosthesis, leading to biofilm growth and impeding effective treatment. To address this challenge and enhance the performance of these devices, we propose the fabrication of magnetic silicone cilia, with the prospect of their integration onto silicone prostheses. The present study presents a fabrication method based on magnetic self-assembly and assesses the interaction behavior of the cilia array with biological mucus. This protocol allows for the customization of cilia dimensions across a wide range of aspect ratios (from 6 to 85) and array densities (from 10 to 80 cilia/mm2) by adjusting the fabrication parameters, offering flexibility for adjustments according to their required characteristics. Furthermore, we evaluated the suitability of different cilia arrays for biomedical applications by analyzing their interaction with bullfrog mucus, simulating the airways environment. Our findings demonstrate that the fabricated cilia are mechanically resistant to the viscous fluid and still exhibit controlled movement under the influence of an external moving magnet. A correlation between cilia dimensions and mucus wettability profile suggests a potential role in facilitating mucus depuration, paving the way for further advancements aimed at enhancing the performance of silicone prostheses in clinical settings.
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Affiliation(s)
- Aline Grein-Iankovski
- Institute of Chemistry, Universidade Estadual de Campinas (UNICAMP), Campinas 13083-970, SP, Brazil
| | | | | | - Paulo Francisco Guerreiro Cardoso
- Instituto do Coração, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo 01246-903, SP, Brazil
| | - Watson Loh
- Institute of Chemistry, Universidade Estadual de Campinas (UNICAMP), Campinas 13083-970, SP, Brazil
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Liu G, Yang J, Zhang K, Wu H, Yan H, Yan Y, Zheng Y, Zhang Q, Chen D, Zhang L, Zhao Z, Zhang P, Yang G, Chen H. Recent progress on the development of bioinspired surfaces with high aspect ratio microarray structures: From fabrication to applications. J Control Release 2024; 367:441-469. [PMID: 38295991 DOI: 10.1016/j.jconrel.2024.01.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/12/2024] [Accepted: 01/25/2024] [Indexed: 02/05/2024]
Abstract
Surfaces with high aspect ratio microarray structures can implement sophisticated assignment in typical fields including microfluidics, sensor, biomedicine, et al. via regulating their deformation or the material properties. Inspired by natural materials and systems, for example sea cockroaches, water spiders, cacti, lotus leaves, rice leaves, and cedar leaves, many researchers have focused on microneedle functional surface studies. When the surface with high aspect ratio microarray structures is stimulated by the external fields, such as optical, electric, thermal, magnetic, the high aspect ratio microarray structures can undergo hydrophilic and hydrophobic switching or shape change, which may be gifted the surfaces with the ability to perform complex task, including directional liquid/air transport, targeted drug delivery, microfluidic chip sensing. In this review, the fabrication principles of various surfaces with high aspect ratio microarray structures are classified and summarized. Mechanisms of liquid manipulation on hydrophilic/hydrophobic surfaces with high aspect ratio microarray structures are clarified based on Wenzel model, Cassie model, Laplace pressure theories and so on. Then the intelligent control strategies have been demonstrated. The applications in microfluidic, drug delivery, patch sensors have been discussed. Finally, current challenges and new insights of future prospects for dynamic manipulation of liquid/air based on biomimetic surface with high aspect ratio microarray structures are also addressed.
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Affiliation(s)
- Guang Liu
- School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, China
| | - Jiajun Yang
- School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, China
| | - Kaiteng Zhang
- School of Mechanical Engineering and Automation, Beihang University, Beijing, China
| | - Hongting Wu
- Zhongtong Bus Holding Co., Ltd, Liaocheng, Shandong, China
| | - Haipeng Yan
- School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, China
| | - Yu Yan
- School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, China
| | - Yingdong Zheng
- School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, China
| | - Qingxu Zhang
- School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, China
| | - Dengke Chen
- College of Transportation, Ludong University, Yantai, Shandong, China
| | - Liwen Zhang
- School of Mechanical Engineering and Automation, Beihang University, Beijing, China
| | - Zehui Zhao
- School of Mechanical Engineering and Automation, Beihang University, Beijing, China
| | - Pengfei Zhang
- School of Mechanical Engineering and Automation, Beihang University, Beijing, China
| | - Guang Yang
- School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, China.
| | - Huawei Chen
- School of Mechanical Engineering and Automation, Beihang University, Beijing, China.
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Li Z, Feng D, Li B, Zhao W, Xie D, Mei Y, Liu P. Ultra-Wide Range, High Sensitivity Piezoresistive Sensor Based on Triple Periodic Minimum Surface Construction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301378. [PMID: 37127873 DOI: 10.1002/smll.202301378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/21/2023] [Indexed: 05/03/2023]
Abstract
Flexible piezoresistive sensors with biological structures are widely exploited for high sensitivity and detection. However, the conventional bionic structure pressure sensors usually suffer from irreconcilable conflicts between high sensitivity and wide detection response range. Herein, a triple periodic minimum surface (TPMS) structure sensor is proposed based on parametric structural design and 3D printing techniques. Upon tailoring of the dedicated structural parameters, the resulting sensors exhibit superior compression durability, high sensitivity, and ultra-high detection range, that enabling it meets the needs of various scenes. As a model system, TPMS structure sensor with 40.5% porosity exhibits an ultra-high sensitivity (132 kPa-1 in 0-5.7 MPa), wide detection strain range (0-31.2%), high repeatability and durability (1000 cycles in 4.41 MPa, 10000 s in 1.32 MPa), and low detection limit (1% in 80 kPa). The stress/strain distributions have been identified using finite element analysis. Toward practical applications, the TPMS structural sensors can be applied to detect human activity and health monitoring (i.e., voice recognition, finger pressure, sitting, standing, walking, and falling down behaviors). The synergistic effects of MWCNTs and MXene conductive network also ensure the composite further being utilized for electromagnetic interference shielding applications.
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Affiliation(s)
- Zhongming Li
- Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials, The Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan Province, Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Dong Feng
- Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials, The Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan Province, Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Bin Li
- Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials, The Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan Province, Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Wenbo Zhao
- Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials, The Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan Province, Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Delong Xie
- Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials, The Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan Province, Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Yi Mei
- Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials, The Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan Province, Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Pengju Liu
- College of Materials Science & Engineering, Huaqiao University, Xiamen, 361021, China
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