Abstract
The past few decades have witnessed significant advances in the development of functionalized metal/metal oxide nanoparticles including those of inorganic noble metals and magnetic materials stabilized by various polymeric ligands. Recent applications of such functionalized nanoparticles, including those in bio-imaging, sensing, catalysis, drug delivery, and other biomedical applications have triggered the need for their facile and reproducible preparation with a better control over their size, shape, and surface chemistry. In this perspective, the multidentate polymer ligands containing functional groups like thiol, thioether, and ester are important surface ligands for designing and synthesizing stable nanoparticles (NPs) of metals or their oxides with reproducibility and high yield. These ligands have offered an unprecedented control over the particle size of both nanoparticles and nanoclusters with enhanced colloidal stability, having tunable solubility in aqueous and organic media, and tunable optical, magnetic, and fluorescent properties. This review summarizes the synthetic methodologies and stability of nanoparticles and fluorescent nanoclusters of metals (Au, Ag, Cu, Pt, and other transition metal oxides) prepared by using thioether based ligands and highlights their applications in bio-imaging, sensing, drug delivery, magnetic resonance imaging (MRI), and catalysis. The future applications of fluorescent metal NPs like thermal gradient optical imaging, single molecule optoelectronics, sensors, and optical components of the detector are also envisaged.
Highlights
Metal nanoparticles have attracted a considerable interest because of their unusual/unique optical, electrical, magnetic, physical and chemical properties, distinctly different from those of their bulk analogues [1]
On the basis of size dependent properties, these MNCS are the desirable candidates for applications in bio-imaging, sensing, optoelectronics, and catalysis, etc. [6]
Polyethylene glycol (PEG), carbohydrates and polymeric ligating species, imaging, optoelectronic, and magnetic properties of metal NPs due to the differences in their effect a number of alkyl thiols and sulfur containing moieties have been demonstrated for stabilization of on the electronic and binding properties
Summary
Metal nanoparticles have attracted a considerable interest because of their unusual/unique optical, electrical, magnetic, physical and chemical properties, distinctly different from those of their bulk analogues [1]. Utilization cappinghave ligands is not impact only associated in terms of stability and in and to the aboveThe features, theofligands a strong on sensing, imaging, optoelectronic, providing suitable synthetic conditions and the ability to tune the size and shape of the magnetic properties of metal NPs due to the differences in their effect on the electronic and binding nanoparticles. In addition to the above features, the ligands have a strong impact on sensing, properties For this purpose, polyethylene glycol (PEG), carbohydrates and polymeric ligating species, imaging, optoelectronic, and magnetic properties of metal NPs due to the differences in their effect a number of alkyl thiols and sulfur containing moieties have been demonstrated for stabilization of on the electronic and binding properties. 3.6mM concentrations of polymer ligands. (A) 0.006mM (B) 0.03mM (C) 0.6mM and (D) 3.6mM [41]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
