1
|
Yuan Q, Fang H, Wu X, Wu J, Luo X, Peng R, Xu S, Yan S. Self-Adhesive, Biocompatible, Wearable Microfluidics with Erasable Liquid Metal Plasmonic Hotspots for Glucose Detection in Sweat. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37903285 DOI: 10.1021/acsami.3c11746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
Sweat is a noninvasive metabolite that can provide clinically meaningful information about physical conditions without harming the body. Glucose, a vital component in sweat, is closely related to blood glucose levels, and changes in its concentration can reflect the health status of diabetics. We introduce a self-adhesive, wearable microfluidic chip with erasable liquid metal plasmonic hotspots for the precise detection of glucose concentration in sweat. The self-adhesive, wearable microfluidic chip is made from modified polydimethylsiloxane (PDMS) with enhanced stickiness, enabling conformal contact with the skin, and can collect, deliver, and store sweat. The plasmonic hotspots are located inside the microfluidic channel, are generated by synthesizing silver nanostructures on liquid metal, and can be removed in the alkaline solution. It indicates the erasable and reproducible nature of the plasmonic hotspots. The detection method is based on surface-enhanced Raman spectroscopy (SERS), which allows for accurate detection of the glucose concentration. To enhance the sensitive detection of glucose, the SERS substrate is modified by 4-mercaptophenylboronic acid to achieve the limit of detection of 1 ng/L glucose, which is much lower than the physiological conditions (7.2-25.2 μg/L). The developed microfluidic chip is soft, stretchable, and nontoxic, bringing new possibilities to wearable sweat-sensing devices.
Collapse
Affiliation(s)
- Qingwei Yuan
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Nanophotonics Research Center, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
| | - Hui Fang
- Nanophotonics Research Center, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
| | - Xiuru Wu
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Nanophotonics Research Center, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
| | - Jialin Wu
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- Nanophotonics Research Center, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
| | - Xie Luo
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China
| | - Ran Peng
- College of Marine Engineering, Dalian Maritime University, Dalian 116026, China
| | - Shanshan Xu
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Sheng Yan
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
- College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, China
| |
Collapse
|
2
|
Pan C, Xu J, Gao Q, Li W, Sun T, Lu J, Shi Q, Han Y, Gao G, Li J. Sequentially suspended 3D bioprinting of multiple-layered vascular models with tunable geometries for in vitromodeling of arterial disorders initiation. Biofabrication 2023; 15:045017. [PMID: 37579751 DOI: 10.1088/1758-5090/aceffa] [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: 05/15/2023] [Accepted: 08/14/2023] [Indexed: 08/16/2023]
Abstract
As the main precursor of arterial disorders, endothelial dysfunction preferentially occurs in regions of arteries prone to generating turbulent flow, particularly in branched regions of vasculatures. Although various diseased models have been engineered to investigate arterial pathology, producing a multiple-layered vascular model with branched geometries that can recapitulate the critical physiological environments of human arteries, such as intercellular communications and local turbulent flows, remains challenging. This study develops a sequentially suspended three-dimensional bioprinting (SSB) strategy and a visible-light-curable decellularized extracellular matrix bioink (abbreviated as 'VCD bioink') to construct a biomimetic human arterial model with tunable geometries. The engineered multiple-layered arterial models with compartmentalized vascular cells can exhibit physiological functionality and pathological performance under defined physiological flows specified by computational fluid dynamics simulation. Using different configurations of the vascular models, we investigated the independent and synergetic effects of cellular crosstalk and abnormal hemodynamics on the initiation of endothelial dysfunction, a hallmark event of arterial disorder. The results suggest that the arterial model constructed using the SSB strategy and VCD bioinks has promise in establishing diagnostic/analytic platforms for understanding the pathophysiology of human arterial disorders and relevant abnormalities, such as atherosclerosis, aneurysms, and ischemic diseases.
Collapse
Affiliation(s)
- Chen Pan
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Jingwen Xu
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou 511442, People's Republic of China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, People's Republic of China
| | - Qiqi Gao
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Wei Li
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Tao Sun
- School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
- Key Laboratory of Biomimetic Robots and Systems (Beijing Institute of Technology), Ministry of Education, Beijing 100081, People's Republic of China
| | - Jiping Lu
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Qing Shi
- School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
- Key Laboratory of Biomimetic Robots and Systems (Beijing Institute of Technology), Ministry of Education, Beijing 100081, People's Republic of China
| | - Yafeng Han
- School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Ge Gao
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Jinhua Li
- School of Medical Technology, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| |
Collapse
|
3
|
Chen Z, Liu X, Tang X, Li Y, Liu D, Li Y, Huang Q, Arai T. On-Chip Automatic Trapping and Rotating for Zebrafish Embryo Injection. IEEE Robot Autom Lett 2022. [DOI: 10.1109/lra.2022.3194959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhuo Chen
- State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, Beijing, China
| | - Xiaoming Liu
- State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, Beijing, China
| | - Xiaoqing Tang
- State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, Beijing, China
| | - Yuyang Li
- State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, Beijing, China
| | - Dan Liu
- State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, Beijing, China
| | - Yuke Li
- State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, Beijing, China
| | - Qiang Huang
- State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, Beijing, China
| | - Tatsuo Arai
- State Key Laboratory of Intelligent Control and Decision of Complex System, Beijing Advanced Innovation Center for Intelligent Robots and Systems, Beijing, China
| |
Collapse
|
4
|
Gholami F, Shih A, Robichaud A, Cicek PV. A Study of Optimizing Lamb Wave Acoustic Mass Sensors' Performance through Adjustment of the Transduction Electrode Metallization Ratio. SENSORS (BASEL, SWITZERLAND) 2022; 22:6428. [PMID: 36080886 PMCID: PMC9460037 DOI: 10.3390/s22176428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/19/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
This paper presents the design and simulation of a mass sensitive Lamb wave microsensor with CMOS technology provided by SilTerra. In this work, the effects of the metalization ratio variation on the transmission gain, total harmonic distortion (THD), and two different resonant modes (around 66 MHz and 86 MHz) are shown. It has been found that the metalization ratio can be adjusted in order to obtain a compromise between transmission gain and sensitivity, depending on the design criteria. By adding a Si3N4 layer on top of the device, a five-fold improvement in transmission gain is reached. It was also shown that the transmission of the input differential IDT configuration is 20% more efficient than a single terminal. With this combination, the mass sensitivity is about 114 [cm2/gr].
Collapse
Affiliation(s)
- Fatemeh Gholami
- Microtechnologies Integration & Convergence Research Group, Université du Québec à Montréal, Montreal, QC H2X 3Y7, Canada
| | - Andy Shih
- Department of Electrical Engineering, École de Technologie Supérieure (ETS), Montreal, QC H3C 1K3, Canada
| | - Alexandre Robichaud
- Department of Applied Sciences, Université du Québec à Chicoutimi (UQAC), Chicoutimi, QC G7H 2B1, Canada
| | - Paul-Vahe Cicek
- Microtechnologies Integration & Convergence Research Group, Université du Québec à Montréal, Montreal, QC H2X 3Y7, Canada
| |
Collapse
|