Abstract
The surface-enhanced Raman scattering (SERS) technique, that uses magnetic plasmonic particles (MPPs), is an advanced SERS detection platform owing to the synergetic effects of the particles’ magnetic and plasmonic properties. As well as being an ultrasensitive and reliable SERS material, MPPs perform various functions, such as aiding in separation, drug delivery, and acting as a therapeutic material. This literature discusses the structure and multifunctionality of MPPs, which has enabled the novel application of MPPs to various biological fields.
Highlights
Introduction iationsIn 1974, Fleischmann et al first reported surface-enhanced Raman scattering (SERS)when they observed an unexpectedly strong Raman signal from pyridine adsorbed on a roughened silver electrode [1]
The magnetic plasmonic particles (MPPs) are applied for the specific identification of Staphylococcus aureus bacteria using SERS [25]
The bacteria are bonded by the magnetic NPs and separated by a magnetic bar, where
Summary
Magnetic SERS requires materials possessing magnetic and plasmonic properties. Several kinds of MPPs have been designed and modified through the addition of functional molecules as per the requirement. Silica encapsulation ensures the particles are well-dispersed in a solution, have long-term stability, and are suitable for surface modification via silanecoupling chemistry, thereby ensuring bioapplication [46,47]. These substrates are a mongraphene derived materials, such as graphene oxide and reduced graphene oxide, are olayer of carbon atoms that undergo π–π stacking or electrostatic bonding with aromatic promising substrates for SERS techniques [42] These substrates are a monolayer of compounds. A. SERS enhancement [42], and graphene with magnetic metal has good electrical conduccombination of graphene with noble metal nanostructures exhibits higher SERS enhancetivity and stability when biomolecules immobilize onto surfaces [49].
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