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学者姓名：陈涛
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摘要 ：
本发明涉及脉搏波血压测量技术领域，揭露了一种基于激光自混合干涉的血压检测方法，利用激光自混合探测系统采集待检测对象的脉搏波自混合信号；对所述脉搏波自混合信号进行信号降噪以及脉搏波曲线重构，获取脉搏波信号的特征向量和特征参数；将所述获取的脉搏波信号的特征向量输入基于深层前馈神经网络的人体血压数值的预测模型；利用所述基于深层前馈神经网络的人体血压数值的预测模型输出待检测对象的血压值。本发明的激光自混合干涉技术，可以实现同时探测脉搏波多个特征参数；具有成本低廉、精度高、结构简单、适用场景丰富等优点，十分适合集成在血压监测系统内。
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| GB/T 7714 | 赵宇 , 姚喜杰 , 陈涛 . 基于激光自混合干涉的血压检测方法及系统 : CN202310217566.9[P]. | 2023-03-03 . |
| MLA | 赵宇 等. "基于激光自混合干涉的血压检测方法及系统" : CN202310217566.9. | 2023-03-03 . |
| APA | 赵宇 , 姚喜杰 , 陈涛 . 基于激光自混合干涉的血压检测方法及系统 : CN202310217566.9. | 2023-03-03 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
The self-mixing interferometry (SMI) technique is an emerging sensing technology in microscale particle classification. However, due to the nature of the SMI effect raised by a microscattering particle, the signal analysis suffers from many problems compared with a macro target, such as lower signal-to-noise ratio (SNR), short transit time, and time-varying modulation strength. Therefore, the particle sizing measurement resolution is much lower than the one in typical displace-ment measurements. To solve these problems, in this paper, first, a theoretical model of the phase variation of a single -particle SMI signal burst is demonstrated in detail. The relationship between the phase variation and the particle size is investigated, which predicts that phase observation could be another alternative for particle detection. Second, combined with continuous wavelet transform and Hilbert transform, a novel phase-unwrapping algorithm is proposed. This algorithm can implement not only efficient individual burst extraction from the noisy raw signal, but also precise phase calculation for particle sizing. The measurement shows good accuracy over a range from 100 nm to 6 mu m with our algorithm, proving that our algorithm enables a simple and reliable quantitative particle characteristics retrieval and analysis methodology for microscale particle detection in biomedical or laser manufacturing fields.
关键词 ：
laser processing laser processing self-mixing interferometry self-mixing interferometry continuous wavelet transform continuous wavelet transform particle detection particle detection Hilbert transform Hilbert transform
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| GB/T 7714 | Zhao, Yu , Li, Jiawei , Zhang, Menglei et al. Phase-unwrapping algorithm combined with wavelet transform and Hilbert transform in self-mixing interference for individual microscale particle detection [J]. | CHINESE OPTICS LETTERS , 2023 , 21 (4) . |
| MLA | Zhao, Yu et al. "Phase-unwrapping algorithm combined with wavelet transform and Hilbert transform in self-mixing interference for individual microscale particle detection" . | CHINESE OPTICS LETTERS 21 . 4 (2023) . |
| APA | Zhao, Yu , Li, Jiawei , Zhang, Menglei , Zhao, Yangyang , Zou, Jianglin , Chen, Tao . Phase-unwrapping algorithm combined with wavelet transform and Hilbert transform in self-mixing interference for individual microscale particle detection . | CHINESE OPTICS LETTERS , 2023 , 21 (4) . |
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摘要 ：
The regeneration of the injured nerve and recovery of its function have brought attention in the medical field. Electrical stimulation (ES) can enhance the cellular biological behavior and has been widely studied in the treatment of neurological diseases. Microfluidic technology can provide a cell culture platform with the well-controlled environment. Here a novel microfluidic/microelectrode composite microdevice was developed by embedding the microelectrodes to the microfluidic platform, in which microfluidics provided a controlled cell culture platform, and ES promoted the NSCs proliferation. We performed ES on rat neural stem cells (NSCs) to observe the effect on their growth, differentiation, proliferation, and preliminary explored the ES influence on cells in vitro. The results of immunofluorescence showed that ES had no significant effect on the NSCs specific expression, and the NSCs specific expression reached 98.9% +/- 0.4% after three days of ES. In addition, ES significantly promoted cell growth and the cell proliferation rate reached 49.41%. To conclude, the microfluidic/microelectrode composite microdevice can play a positive role in the nerve injury repair and fundamental research of neurological diseases. (C) 2021 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.
关键词 ：
Electrical stimulation Electrical stimulation Microfluidics Microfluidics Microelectrode Microelectrode NSCs NSCs Proliferation Proliferation
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| GB/T 7714 | Li, Qian , Kang, Bodong , Wang, Libin et al. Microfluidics embedded with microelectrodes for electrostimulation of neural stem cells proliferation [J]. | CHINESE CHEMICAL LETTERS , 2022 , 33 (3) : 1308-1312 . |
| MLA | Li, Qian et al. "Microfluidics embedded with microelectrodes for electrostimulation of neural stem cells proliferation" . | CHINESE CHEMICAL LETTERS 33 . 3 (2022) : 1308-1312 . |
| APA | Li, Qian , Kang, Bodong , Wang, Libin , Chen, Tao , Zhao, Yu , Feng, Shilun et al. Microfluidics embedded with microelectrodes for electrostimulation of neural stem cells proliferation . | CHINESE CHEMICAL LETTERS , 2022 , 33 (3) , 1308-1312 . |
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摘要 ：
本发明涉及一种基于自混合干涉的双路微位移探测装置、方法及系统，属于微位移探测领域，装置包括：激光器、第一光电探测器、分光棱镜、第二光电探测器以及透镜；激光器发出激光，分解成两路光线，一路光线入射到第一光电探测器，监测激光器输出功率受到激光自混合干涉影响而产生的实时变化，另一路由透镜聚焦至待测物体表面；PZT驱动的待测物体作周期的往返运动并反射生成反射信号光，逆向分解为另外两路光线，其中一路反射信号光原路返回至激光器，引起激光输出功率实时变化，被第一光电探测器进行测量记录；另一路反射信号光被反射进入第二光电探测器中，由第二光电探测器进行探测记录。本发明中的上述方案能够实现微位移的精确探测。
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| GB/T 7714 | 赵宇 , 张梦雷 , 陈涛 . 一种基于自混合干涉的双路微位移探测装置、方法及系统 : CN202211306618.1[P]. | 2022-10-25 . |
| MLA | 赵宇 et al. "一种基于自混合干涉的双路微位移探测装置、方法及系统" : CN202211306618.1. | 2022-10-25 . |
| APA | 赵宇 , 张梦雷 , 陈涛 . 一种基于自混合干涉的双路微位移探测装置、方法及系统 : CN202211306618.1. | 2022-10-25 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
本发明提供了一种复合神经微器件及其制造方法，其中的复合神经微器件包括电极单元、细胞培养单元和封装单元，所述电极单元包括刺激电极及电极导线，所述电极导线将外部电流传到刺激电极；所述细胞培养单元位于电极正上方，用于承载神经干细胞；所述封装单元包含狭缝薄膜以及绝缘膜，所述狭缝薄膜位于细胞培养单元上方，防止细胞培养液漏出，所述绝缘膜包覆在电极导线以及刺激电极除正面外的其他部分。上述复合神经微器件及其制造方法使得电刺激与神经干细胞能够联合作用。
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| GB/T 7714 | 陈涛 , 李荣京 , 赵宇 et al. 复合神经微器件及其制造方法 : CN202211278727.7[P]. | 2022-10-19 . |
| MLA | 陈涛 et al. "复合神经微器件及其制造方法" : CN202211278727.7. | 2022-10-19 . |
| APA | 陈涛 , 李荣京 , 赵宇 , 刘旭 , 王力斌 . 复合神经微器件及其制造方法 : CN202211278727.7. | 2022-10-19 . |
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摘要 ：
Currently, a growing number of biomaterials have been evaluated to be beneficial to the application of neural tissue engineering. However, their deficient mechanical and electrical properties limit their further application, especially for nerve regeneration. Therefore, the combination of biological matrix and conductive materials has been applied to meet the requirements for nerve tissue engineering. In this work, conductive collagen (COL)/multiwalled carbon nanotube (MWNT) composite films with different MWNT concentrations were developed by the solvent-evaporation method. The effects of rigid MWNT on the structure, mechanical, thermal, and electrical properties of the flexible COL-based film were evaluated. The evaluation of mechanical properties revealed that the tensile strength of the COL/MWNT composite films was almost eight times as high as that of the pure COL film. The electrical property assessment demonstrated that the electrical conductivity of COL/MWNT-0.25% reached 0.45 S/cm, meeting the electrical stimulation conditions required for nerve growth. Furthermore, the cell viability assays revealed that the COL/MWNT composite films were non-cytotoxic and appropriate for cell growth. Our work proved that the conductive COL/MWNT composite films exhibited great potential for nerve tissue engineering application, which provided a novel self-electrical stimulated platform for the treatment of neural injuries. (C) 2022 Author(s)
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| GB/T 7714 | Li, Qian , Yue, Chengfei , Chen, Tao et al. Construction and characterization of conductive collagen/multiwalled carbon nanotube composite films for nerve tissue engineering [J]. | AIP ADVANCES , 2022 , 12 (5) . |
| MLA | Li, Qian et al. "Construction and characterization of conductive collagen/multiwalled carbon nanotube composite films for nerve tissue engineering" . | AIP ADVANCES 12 . 5 (2022) . |
| APA | Li, Qian , Yue, Chengfei , Chen, Tao , Ding, Changkun , Zhang, Hongtian . Construction and characterization of conductive collagen/multiwalled carbon nanotube composite films for nerve tissue engineering . | AIP ADVANCES , 2022 , 12 (5) . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
This paper presents chip implementation of the integrated neural recording and stimulation system with stimulation-induced artifact suppression. The implemented chip consists of low-power neural recording circuits, stimulation circuits, and action potential detection circuits. These circuits constitute a closed-loop simultaneous neural recording and stimulation system for biomedical devices, and a proposed artifact suppression technique is used in the system. Moreover, this paper also presents the measurement and experiment results of the implemented 4-to-4 channel neural recording and stimulation chip with 0.18 mu m CMOS technology. The function and efficacy of simultaneous neural recording and stimulation is validated in both in vivo and animal experiments.
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| GB/T 7714 | Liu, Xu , Li, Juzhe , Chen, Tao et al. A Neural Recording and Stimulation Chip with Artifact Suppression for Biomedical Devices [J]. | JOURNAL OF HEALTHCARE ENGINEERING , 2021 , 2021 . |
| MLA | Liu, Xu et al. "A Neural Recording and Stimulation Chip with Artifact Suppression for Biomedical Devices" . | JOURNAL OF HEALTHCARE ENGINEERING 2021 (2021) . |
| APA | Liu, Xu , Li, Juzhe , Chen, Tao , Wang, Wensi , Je, Minkyu . A Neural Recording and Stimulation Chip with Artifact Suppression for Biomedical Devices . | JOURNAL OF HEALTHCARE ENGINEERING , 2021 , 2021 . |
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摘要 ：
本发明提供一种脑微器件及其制造方法，包括电刺激部分和细胞培养部分，所述电刺激部分包括刺激电路和刺激电极，所述刺激电极为可植入刺激电极，一部分刺激电极作为正极，另一部分刺激电极作为负极，所述刺激电路产生电流传到刺激电极，通过外界液体环境导电，将电流从正极流向负极；所述细胞培养部分包括外轮廓以及设置在所述外轮廓上表面的至少三个腔室，第一腔室用于培养干细胞，第二腔室作为出液口，第三腔室作为进液口，腔室之间通过微流控通道相连。上述脑微器件及其制造方法使得干细胞和电刺激共同作用。
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| GB/T 7714 | 陈涛 , 李倩 , 康博栋 et al. 一种脑微器件及其制造方法 : CN202110088660.X[P]. | 2021-01-22 . |
| MLA | 陈涛 et al. "一种脑微器件及其制造方法" : CN202110088660.X. | 2021-01-22 . |
| APA | 陈涛 , 李倩 , 康博栋 , 杨艺 , 马娟棠 . 一种脑微器件及其制造方法 : CN202110088660.X. | 2021-01-22 . |
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摘要 ：
本发明提供一种多通道无线光遗传刺激系统及方法，包括上位机、光刺激器以及阵列式刺激光极，所述光刺激器包括多个刺激通道，不同刺激通道与阵列式刺激光极的不同区域电连通，所述上位机用于设置光刺激参数，所述光刺激参数包括脉冲的频率、占空比、刺激时间和一个或多个刺激通道，所述上位机和光刺激器无线连接，所述光刺激器接收上位机设置的光刺激参数，输出电脉冲信号给光刺激参数中刺激通道电连通的阵列式刺激光极的区域。上述方法及系统能独立选择刺激的区域。
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| GB/T 7714 | 陈涛 , 苏良闯 , 赵宇 et al. 多通道无线光遗传刺激系统及方法 : CN202110081735.1[P]. | 2021-01-21 . |
| MLA | 陈涛 et al. "多通道无线光遗传刺激系统及方法" : CN202110081735.1. | 2021-01-21 . |
| APA | 陈涛 , 苏良闯 , 赵宇 , 康博栋 . 多通道无线光遗传刺激系统及方法 : CN202110081735.1. | 2021-01-21 . |
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摘要 ：
A novel carbon nanotubes/porous-network carbon micron tubes/silk fibroin (CPS) composite film neural electrode was presented and characterized. This electrode was fabricated through assembling dispersed carbon nanotubes (CNTs) by phytic acid onto the porous silk fibroin film. Afterward, the silk fibroin around the CNTs was carbonized by laser irradiation, producing porous-network carbon microtubes with good conductivity and biological compatibility. The structure of the CPS composite film was characterized by scanning electron microscopy and Raman spectroscopy. Cyclic voltammetry, electrochemical impedance spectroscopy, and safe charge injection limit (Q(inj)) of the CPS electrode were also measured by the three-electrode system, and the results exhibited outstanding electrochemical properties with the achieved Q(inj) of 5.7 mC/cm(2). This work provides a promising approach for the preparation of a long-term implanted neural electrode with high charge injection ability and good biocompatibility.
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| GB/T 7714 | Shen, Xuefei , Zhao, Yu , Li, Qian et al. Construction and electrochemical properties determination of carbon nanotubes/porous-network carbon micron tubes/silk fibroin composite film neural electrode [J]. | AIP ADVANCES , 2020 , 10 (4) . |
| MLA | Shen, Xuefei et al. "Construction and electrochemical properties determination of carbon nanotubes/porous-network carbon micron tubes/silk fibroin composite film neural electrode" . | AIP ADVANCES 10 . 4 (2020) . |
| APA | Shen, Xuefei , Zhao, Yu , Li, Qian , Chen, Tao . Construction and electrochemical properties determination of carbon nanotubes/porous-network carbon micron tubes/silk fibroin composite film neural electrode . | AIP ADVANCES , 2020 , 10 (4) . |
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