Carbon capture and biocatalytic oxygen production of photosystem II from thylakoids and microalgae on nanobiomaterials.

Applied surface enhanced Raman Spectroscopy in plant hormones detection, annexation of advanced technologies: A review.

Surface-enhanced Raman scattering (SERS) and tip-enhanced Raman scattering (TERS) have opened a variety of exciting research fields. However, although a vast number of applications have been proposed since the two techniques were first reported, none has been applied to real practical use. This calls for an update in the recent fundamental and application studies of SERS and TERS. Thus, the goals and scope of this review are to report new directions and perspectives of SERS and TERS, mainly from the viewpoint of combining their mechanism and application studies. Regarding the recent progress in SERS and TERS, this review discusses four main topics: (1) nanometer to subnanometer plasmonic hotspots for SERS; (2) Ångström resolved TERS; (3) chemical mechanisms, i.e., charge-transfer mechanism of SERS and semiconductor-enhanced Raman scattering; and (4) the creation of a strong bridge between the mechanism studies and applications.

Toward a New Era of SERS and TERS at the Nanometer Scale: From Fundamentals to Innovative Applications.

Applied surface enhanced Raman Spectroscopy in plant hormones detection, annexation of advanced technologies: A review

Nanozymes have received much attention due to their advantages of lower cost, higher stability, and simple preparation when compared to conventional enzymes. Herein, we prepared a peroxidase-mimicking nanozyme by the growth of silver nanoparticles (AgNPs) on the surface of a metal-organic framework (MOF) called MIL-101 (Fe), obtaining the [email protected] The [email protected] was applied as surface-enhanced Raman spectroscopy (SERS) substrate and simultaneously served as peroxidase mimics to oxidize the without Raman-active leucomalachite green into the Raman-active malachite green. Based on the excellent peroxidase-mimicking activity and high SERS enhancement of [email protected], a highly sensitive and specific SERS sensing platform was proposed to monitor cholesterol. Under the optimized conditions, the established biosensor achieved a broad dynamic detection range of 1.0–100 μM and a relatively low limit of detection down to 0.36 μM. More importantly, this reported sensing platform was employed to detect cholesterol in human serum with excellent accuracy and precision, providing great potential in health management and clinical diagnosis. 

Surface-Enhanced Raman Spectroscopy Biosensor based on Silver Nanoparticles@Metal-Organic Frameworks with Peroxidase-Mimicking Activities for Ultrasensitive Monitoring of Blood Cholesterol

In recent years, bioanalytical surface-enhanced Raman spectroscopy (SERS) has blossomed into a fast-growing research area. Owing to its high sensitivity and outstanding multiplexing ability, SERS is an effective analytical technique that has excellent potential in bioanalysis and diagnosis, as demonstrated by its increasing applications in vivo. SERS allows the rapid detection of molecular species based on direct and indirect strategies. Because it benefits from the tunable surface properties of nanostructures, it finds a broad range of applications with clinical relevance, such as biological sensing, drug delivery and live cell imaging assays. Of particular interest are early-stage-cancer detection and the fast detection of pathogens. Here, we present a comprehensive survey of SERS-based assays, from basic considerations to bioanalytical applications. Our main focus is on SERS-based pathogen detection methods as point-of-care solutions for early bacterial infection detection and chronic disease diagnosis. Additionally, various promising in vivo applications of SERS are surveyed. Furthermore, we provide a brief outlook of recent endeavours and we discuss future prospects and limitations for SERS, as a reliable approach for rapid and sensitive bioanalysis and diagnosis.

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Nicoleta E. Dina

Papers

Surface-enhanced Raman spectroscopy for bioanalysis and diagnosis