生物传感器
生物分子
等离子体子
材料科学
激光器
纳米技术
光电子学
随机激光器
折射率
面(心理学)
光纤激光器
生物光子学
表面等离子共振
光纤
光纤布拉格光栅
光学
纤维
光子晶体光纤
光子学
光纤传感器
物理
五大性格特征
社会心理学
激光阈值
人格
心理学
作者
Xiaoyu Shi,Kun Ge,Junhua Tong,Tianrui Zhai
出处
期刊:Optics Express
[The Optical Society]
日期:2020-04-13
卷期号:28 (8): 12233-12233
被引量:24
摘要
Low-cost and miniaturized biosensors are key factors leading to the possibility of portable and integrated biomedical system, which play an important role in clinical medicine and life sciences. Random lasers with simple structures provide opportunities for detecting biomolecules. Here, low-cost biosensors on fiber facet for label-free detecting biomolecules are demonstrated based on a plasmonic random laser. The random laser is achieved resorting to a self-assembled plasmonic scattering structure of Ag nanoparticles and polymer film on fiber facet. Refractive index sensitivity and near-surface sensitivity of the biosensor are systematically studied. Furthermore, the biosensor is used to detect IgG through specific binding to protein A, exhibiting the detecting limit of 0.68 nM. It is believed that this work may promote the applications of a plasmonic random laser bio-probe in portable or integrated medical diagnostic platforms, and provide fundamental understanding for the life science.
科研通智能强力驱动
Strongly Powered by AbleSci AI