作者单位
摘要
福建师范大学光电与信息工程学院医学光电科学与技术教育部重点实验室,福建 福州 350007
近几年新型冠状病毒COVID-19的迅速传播,引起了全球对传染病防控和快速病毒检测技术的高度关注。表面增强拉曼光谱(SERS)作为一种光学分析技术,凭借其独特的分子指纹特性和高检测灵敏度的特点,成为生物医学检测领域的有力工具,对可能大规模暴发的流行性病毒灵敏迅速的检测以及监控提供新颖、高效的光学解决方案。本文对从2021年以来开展的DNA、RNA病毒,尤其是威胁人类生命健康的流行性病毒检测工作当中使用的标记、非标记SERS技术进行梳理,从SERS基底结构建构及功能化修饰,分子探针的设计,高速响应、高灵敏度检测模型构建,生物技术、机器学习方法的联合使用等方面,特别是基于便携式、手持式拉曼光谱仪的研究,对SERS技术在病毒检测领域的应用进展进行了总结和展望。
医用光学 表面增强拉曼光谱 病毒检测 生物传感器 纳米光子学 纳米医学 
中国激光
2024, 51(9): 0907006
作者单位
摘要
中南大学基础医学院生物医学工程系,湖南 长沙 410013
近年来,有机半导体聚合物点(Pdots)以其光吸收截面大、稳定性好、生物相容性好、光物理性质可调等特性受到了广泛关注。聚合物点已被应用于生物传感、生物成像以及光学治疗等生物光学应用领域,对即时检测、活体成像、肿瘤治疗等具有重要意义。本文简要介绍了聚合物点的发光原理、制备方法、性能表征和修饰策略,总结了聚合物点在生物传感、生物成像以及光治疗应用中的最新研究进展,并分析了聚合物点在生物光学领域面临的挑战及未来的发展方向。
生物光学 生物传感 生物成像 光学治疗 有机半导体 聚合物点 
中国激光
2023, 50(15): 1507401
作者单位
摘要
深圳大学物理与光电工程学院,射频异质异构集成全国重点研究实验室,光电子器件与系统教育部/广东省重点实验室,广东 深圳 518060
面向生物粒子操控方法的研究,在生物医学和生命科学等领域具有重要意义。光镊操控具有无接触与高精度的特点,已被广泛应用于多个领域的研究中。然而,传统光镊的光热效应以及衍射极限都制约着光镊在生物医学领域的更广泛应用和发展。近十年来,研究者们将光热效应化劣势为优势,利用光与热的耦合效应实现了多种粒子的精确捕获及操控,即光致温度场光镊(OTFT)。由于此种新型光镊对光能的利用率极高,能量密度低于传统光镊近3个数量级,并可实现颗粒的大范围操控,极大地拓展了光镊可操控粒子的种类,已经成为纳米技术以及生命科学领域的重要研究工具。温度场光镊仍面临诸多问题,例如对于颗粒界面调控的依赖性以及三维捕获受限等,尤其是在生物光子学的研究中,还需要进一步发展和优化。本文对光致温度场光镊操控基本原理及其在生物医学中的应用两个方面进行了系统阐述,并对其今后的发展与挑战进行了展望。
光镊 光热镊 光流控 光热效应 微流控 生物传感器 
光学学报
2023, 43(14): 1400001
Author Affiliations
Abstract
Chinese Academy of Inspection and Quarantine, Beijing 100176, China
The threat posed to crop production by pests and diseases is one of the key factors that could reduce global food security. Early detection is of critical importance to make accurate predictions, optimize control strategies and prevent crop losses. Recent technological advancements highlight the opportunity to revolutionize monitoring of pests and diseases. Biosensing methodologies offer potential solutions for real-time and automated monitoring, which allow advancements in early and accurate detection and thus support sustainable crop protection. Herein, advanced biosensing technologies for pests and diseases monitoring, including image-based technologies, electronic noses, and wearable sensing methods are presented. Besides, challenges and future perspectives for widespread adoption of these technologies are discussed. Moreover, we believe it is necessary to integrate technologies through interdisciplinary cooperation for further exploration, which may provide unlimited possibilities for innovations and applications of agriculture monitoring.The threat posed to crop production by pests and diseases is one of the key factors that could reduce global food security. Early detection is of critical importance to make accurate predictions, optimize control strategies and prevent crop losses. Recent technological advancements highlight the opportunity to revolutionize monitoring of pests and diseases. Biosensing methodologies offer potential solutions for real-time and automated monitoring, which allow advancements in early and accurate detection and thus support sustainable crop protection. Herein, advanced biosensing technologies for pests and diseases monitoring, including image-based technologies, electronic noses, and wearable sensing methods are presented. Besides, challenges and future perspectives for widespread adoption of these technologies are discussed. Moreover, we believe it is necessary to integrate technologies through interdisciplinary cooperation for further exploration, which may provide unlimited possibilities for innovations and applications of agriculture monitoring.
precision agriculture biosensors crops disease and pest management 
Journal of Semiconductors
2023, 44(2): 023104
Author Affiliations
Abstract
1 Institute of Animal Inspection and Quarantine, Chinese Academy of Inspection and Quarantine, Beijing 100176, China
2 Research Center of GACC for international Inspection and Quarantine Standards and Technical Regulations, Beijing 100013, China
Viral diseases represent one of the major threats for salmonids aquaculture. Early detection and identification of viral pathogens is the main prerequisite prior to undertaking effective prevention and control measures. Rapid, sensitive, efficient and portable detection method is highly essential for fish viral diseases detection. Biosensor strategies are highly prevalent and fulfill the expanding demands of on-site detection with fast response, cost-effectiveness, high sensitivity, and selectivity. With the development of material science, the nucleic acid biosensors fabricated by semiconductor have shown great potential in rapid and early detection or screening for diseases at salmonids fisheries. This paper reviews the current detection development of salmonids viral diseases. The present limitations and challenges of salmonids virus diseases surveillance and early detection are presented. Novel nucleic acid semiconductor biosensors are briefly reviewed. The perspective and potential application of biosensors in the on-site detection of salmonids diseases are discussed.Viral diseases represent one of the major threats for salmonids aquaculture. Early detection and identification of viral pathogens is the main prerequisite prior to undertaking effective prevention and control measures. Rapid, sensitive, efficient and portable detection method is highly essential for fish viral diseases detection. Biosensor strategies are highly prevalent and fulfill the expanding demands of on-site detection with fast response, cost-effectiveness, high sensitivity, and selectivity. With the development of material science, the nucleic acid biosensors fabricated by semiconductor have shown great potential in rapid and early detection or screening for diseases at salmonids fisheries. This paper reviews the current detection development of salmonids viral diseases. The present limitations and challenges of salmonids virus diseases surveillance and early detection are presented. Novel nucleic acid semiconductor biosensors are briefly reviewed. The perspective and potential application of biosensors in the on-site detection of salmonids diseases are discussed.
salmonids virus detection nucleic acid test biosensors semiconductor 
Journal of Semiconductors
2023, 44(2): 023103
作者单位
摘要
中国计量大学光学与电子科技学院,浙江 杭州 310018
为了拓展超材料在太赫兹波段的生物传感应用,设计了一种双开口环结构的太赫兹超材料生物传感器,通过两个等效电容电感(LC)谐振实现了高折射率灵敏度传感。首先,使用有限积分技术(FIT)数值计算了该传感器的太赫兹光谱,并对其进行了结构尺寸优化。然后,在传感器表面放置了一层折射率可变的分析物,通过对不同透射光谱的计算分析,验证了该传感器具备161.06 GHz/RIU(RIU为折射率单位)的折射率灵敏度和1.98的品质因素(FOM)值。最后,采用传统光刻技术和剥离工艺在石英衬底上制作铜金属结构,制备了该传感器,利用其对牛血清白蛋白(BSA)溶液进行了实际测试,实验得到传感灵敏度为59.02 GHz/(ng·mm-2)和检测下限为0.004 mg/mL。
传感器 生物传感器 太赫兹超材料 双开口环结构 
光学学报
2023, 43(4): 0428002
Author Affiliations
Abstract
Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON, M5S 3G4, Canada
The Microchip Imaging Cytometer (MIC) is a class of integrated point-of-care detection systems based on the combination of optical microscopy and flow cytometry. MIC devices have the attributes of portability, cost-effectiveness, and adaptability while providing quantitative measurements to meet the needs of laboratory testing in a variety of healthcare settings. Based on the use of microfluidic chips, MIC requires less sample and can complete sample preparation automatically. Therefore, they can provide quantitative testing results simply using a finger prick specimen. The decreased reagent consumption and reduced form factor also help improve the accessibility and affordability of healthcare services in remote and resource-limited settings. In this article, we review recent developments of the Microchip Imaging Cytometer from the following aspects: clinical applications, microfluidic chip integration, imaging optics, and image acquisition. Following, we provide an outlook of the field and remark on promising technologies that may enable significant progress in the near future.The Microchip Imaging Cytometer (MIC) is a class of integrated point-of-care detection systems based on the combination of optical microscopy and flow cytometry. MIC devices have the attributes of portability, cost-effectiveness, and adaptability while providing quantitative measurements to meet the needs of laboratory testing in a variety of healthcare settings. Based on the use of microfluidic chips, MIC requires less sample and can complete sample preparation automatically. Therefore, they can provide quantitative testing results simply using a finger prick specimen. The decreased reagent consumption and reduced form factor also help improve the accessibility and affordability of healthcare services in remote and resource-limited settings. In this article, we review recent developments of the Microchip Imaging Cytometer from the following aspects: clinical applications, microfluidic chip integration, imaging optics, and image acquisition. Following, we provide an outlook of the field and remark on promising technologies that may enable significant progress in the near future.
microchip microfluidics flow cytometer imaging cytometer biosensors point-of-care testing biomedical engineering 
Opto-Electronic Advances
2022, 5(11): 210130
作者单位
摘要
1 西北大学 信息科学与技术学院,西安 710127
2 西北大学 物理学院,西安 710127
随着生物传感器应用的日益广泛,对新型生物传感器的开发已成为世界科技发展的重要战略。作为直接宽禁带半导体的氧化锌(ZnO),因具有无毒性、生物相容性良好、物理化学性能稳定等优异性能而被应用于电子器件、光电子器件、生物传感器等领域,尤其基于纳米ZnO的生物传感器研究已成为防疫和医疗领域的一个新热点。本文介绍了目前纳米ZnO的几种主要制备方法(包括水热法、磁控溅射法、溶胶凝胶法和原子层沉积法等)及其优缺点,对比分析了所制备ZnO的优异性能尤其增强性能的方法(如优化工艺、掺杂、复合、异质结等)。着重阐述了纳米ZnO材料在生物传感器领域的应用,根据其信号处理元件的工作原理不同,将ZnO纳米材料所制备的生物传感器分为电化学生物传感器、光学生物传感器、压电生物传感器、热学生物传感器等,分别详细介绍了其结构、工作原理及其对生物检测的突出性能与发展现状。最后,对纳米ZnO生物传感器目前所面临的挑战和未来的发展趋势进行了总结和展望。
氧化锌 生物传感器 纳米材料 光学传感器 电化学传感器 Zinc oxide Biosensors Nanomaterials Optical sensors Electrochemical sensors 
光子学报
2022, 51(10): 1016001
作者单位
摘要
1 澳门大学健康科学学院癌症研究中心,澳门 999078
2 南方科技大学工学院生物医学工程系,广东 深圳 518055
连续血糖监测是糖尿病预防、诊断及管理过程中的有效手段。然而,现有的电化学连续血糖监测系统仍存在开放式创口植入、易引起炎症、监测时间短等缺点。光学传感为连续血糖监测提供了新方法,本团队设计开发了可见光激发的发光纳米粒子葡萄糖传感器,其高亮度的发光传感特性有助于经皮血糖信号检测。基于比率荧光策略设计的发光纳米粒子可以校准激发光强变化和采样环境变化等带来的信号误差,可见光激发发光特性可以避免紫外光激发采样对机体的伤害,在高频率长时段的信号采集应用中具有明显优势。
生物医学 传感器 纳米传感器 生物传感器 血糖监测 
中国激光
2022, 49(15): 1507403
作者单位
摘要
浙江大学 信息与电子工程学院, 杭州 310027
硅基光子芯片以光子为信息传输媒介, 具有高带宽、高速率、高集成度, 及与CMOS工艺兼容等优点, 在多个领域具有应用价值。文章首先介绍了几种硅基光子芯片的加工平台, 包括绝缘体上硅(SOI), SiN, Ⅲ-Ⅴ族材料(如GaAs和InP)和硅衬底上铌酸锂薄膜, 然后回顾了硅基光子芯片在光通信与光互连、光计算、生物传感、激光雷达(LiDAR)和光量子领域的发展现状和挑战, 最后进行了总结。
硅基光子学 光通信 光计算 生物传感 激光雷达 光量子 silicon photonics optical communication optical computing biosensors LiDAR quantum photonics 
半导体光电
2022, 43(2): 218

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