Surface Plasmon Resonance Sensing Technology
A special issue of Coatings (ISSN 2079-6412).
Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 590
Special Issue Editor
Special Issue Information
The study of surface plasmon resonance (SPR) dates back to as early as the beginning of 20th century by Zenneck and Sommerfeld in connection with wireless telegraphy. During the last century, the focus of surface plasmons has expanded to a wide range such as electronics, optical sensing, biomedicine, data storage, and light generation. Due to the label-free alternative for the detection and quantification of biomolecular interaction, the phenomenon of SPR has attracted a great deal of attention from physicists, chemists, biologists, and material scientists. Today, SPR technology is a well-established optical sensing technique with many proven applications and its sensors are mostly used to measure real-time interactions between proteins, lipids, nucleic acids, or even molecules with low molecular weight.
The Kretschmann system is the most famous SPR configuration. This classical SPR platform has made a great contribution to scientific research. The drawbacks such as large size and the necessity of using expensive optical equipment associated with traditional SPRs have been substantially improved during the last decade. Fiber optic SPR has gradually emerged as an alternative to replace the prism with an optical fiber to excite SPR. The merit of miniaturzation provided by fiber optic-SPR sensor enables this measurment to be carried out outside the laboratory environment.
Surface plasmons are dependent on the composition, size, geometry, particle-particle separation distance of nanoparticle, especially for localized surface plasmon resonance. Recent developments in nanotechnology have generated new insight about control of various properties of nanomaterials that can support and tune surface plasmons for specific applications. Common materials used for surface plasmons are noble metals such as Ag and Au. The emerging transition metal dichalcogenide materials such as graphene and molybdenum disulfide exhibit unique and intriguing properties. The combination of traditional SPR material with these newly two-dimensional nanomaterials is able to generate new interactions between photons and nanomaterials, and enhance the capability of the surface plasmons.
The optimization of surface plasmons for rapid, easy, and cost-effective have generated new challenges for researchers. Despite the challenges the surface plasmon faces in terms of implementation of practical and complicate applications, the development of surface plasmon configuration and nanomaterials provide an opportunity to improve their performance and reach their full potential in optical sensing.
In particular, the topics of interest include but are not limited to the following:
- Generation of nanomaterial
- Fiber optic sensor
- Improvement of surface plasmons
- Interaction between light and nanomaterials
Dr. Yu Huang
Guest Editor
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