Layered Assembly of Silver Nanocubes/Polyelectrolyte/Gold Film as an Efficient Substrate for Surface-Enhanced Raman Scattering

Wang, Qiang; Bai, Xiuhui; Zhang, Yang; Zhou, Ziang; Guo, Ming; Zhang, Jiatao; Li, Chunhong; Wang, Changzheng; Chen, Shaowei

doi:10.1021/acsanm.9b02579

Cited by 12 publications

(5 citation statements)

References 50 publications

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“…Another effective solution for the production of sensitive SERS substrates is the use of multilayer structures that consist of several metals. A possible nanoplatform of this type is a Ag-NCs/polyelectrolyte/Au (Ag/PE/Au) sandwich-structured film, which is presented by Wang et al [ 111 ]. The fabrication of the Ag/PE/Au film involved layer-by-layer deposition.…”

Section: Assemblies Of Noble Anisotropic Nanoparticlesmentioning

confidence: 99%

Recent Advances in Metallic Nanoparticle Assemblies for Surface-Enhanced Spectroscopy

Tim

Błaszkiewicz

Kotkowiak

2021

IJMS

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Robust and versatile strategies for the development of functional nanostructured materials often focus on assemblies of metallic nanoparticles. Research interest in such assemblies arises due to their potential applications in the fields of photonics and sensing. Metallic nanoparticles have received considerable recent attention due to their connection to the widely studied phenomenon of localized surface plasmon resonance. For instance, plasmonic hot spots can be observed within their assemblies. A useful form of spectroscopy is based on surface-enhanced Raman scattering (SERS). This phenomenon is a commonly used in sensing techniques, and it works using the principle that scattered inelastic light can be greatly enhanced at a surface. However, further research is required to enable improvements to the SERS techniques. For example, one question that remains open is how to design uniform, highly reproducible, and efficiently enhancing substrates of metallic nanoparticles with high structural precision. In this review, a general overview on nanoparticle functionalization and the impact on nanoparticle assembly is provided, alongside an examination of their applications in surface-enhanced Raman spectroscopy.

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Section: Assemblies Of Noble Anisotropic Nanoparticlesmentioning

confidence: 99%

Recent Advances in Metallic Nanoparticle Assemblies for Surface-Enhanced Spectroscopy

Tim

Błaszkiewicz

Kotkowiak

2021

IJMS

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“…[ 107 ] Metal nanocubes, the 3D nanostructures, have six flat faces (sides) together with 12 sharp edges and 8 sharp corners. [ 108 ] The enhanced local electromagnetic field can be concentrated or localized at their edges and especially at their sharp corners due to strong and tunable LSPR, hence a significant SERS enhancement factor of the molecules of interest attached to nanocubes can be realized. A better understanding of the nucleation and growth processes of the nanoscale particles has allowed the designs and development of even more diverse types of nanostructures with controlled tips, corners, and edges.…”

Section: Particle‐based Sers Sensingmentioning

confidence: 99%

General Background of SERS Sensing and Perspectives on Polymer‐Supported Plasmon‐Active Multiscale and Hierarchical Sensor Particles

Visaveliya

Mazetyte‐Stasinskiene

Köhler

2021

Advanced Optical Materials

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Surface‐enhanced Raman scattering (SERS) is one of the most powerful analytical techniques for the identification of molecules. The substrate, on which SERS is dependent, contains regions of nanoscale gaps (hotspots) that hold the ability to concentrate incident electromagnetic fields and effectively amplify vibrational scattering signals of adsorbed analytes. While surface plasmon resonance from metal nanostructures is a central focus for the SERS effect, the support of polymers can be significantly advantageous to provide larger exposure of structured metal surfaces for efficient interactions with analytes. Characteristics of the polymer particles such as softness, flexibility, swellability, porosity, optical transparency, metal‐loading ability, and high surface area can allow diffusion of analytes and penetrating light deeply that can enormously amplify sensing outcomes. As polymer‐supported plasmon‐active sensor particles can emerge as versatile SERS substrates, the microfluidic platform is promising for the generation of sensor particles as well as for performing sequential SERS analysis of multiple analytes. Therefore, in this perspective article, the development of multifunctional polymer–metal composite particles, and their applications as potential sensors for SERS sensing through microfluidics are presented. A detailed background from the beginning of the SERS field and perspectives for the multifunctional sensor particles for efficient SERS sensing are provided.

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“…Noble metal nanoparticles (NPs) and thin films have been proven as prominent materials for manipulation of light due to their strong localized surface plasmon resonance and surface plasmon polariton properties. , Notably, silver (Ag) NPs and films, e.g., nanostructures, show the broad spectra of applications: antibacterial, , antimicrobial, gas sensing, , surface-enhanced Raman spectroscopy (SERS) sensing, ,− etc. in addition to plasmonic utilization. , Practical employment of Ag NPs in those reports strongly depends on shape, size, crystallinity, etc. , …”

Section: Introductionmentioning

confidence: 99%

Solid-State Dewetting of Thin Silver Films into Spherical Nanoparticles under High-Current Pulsed Ion Beam Irradiation

Abduvalov,

Kaikanov,

Tikhonov

2023

ACS Omega

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Noble metal nanoparticles (NPs) are important in many applications, including light trapping of photovoltaic cells, photoelectrochemical applications, etc. The present study reports the formation of silver NPs from the as-deposited silver coatings on fused silica substrates by solid-state dewetting induced by highcurrent intense pulsed ion beam (IPIB) irradiation. We described the effects of IPIB irradiation with different ion beam current densities and numbers of pulses on NP morphology and compared the results with conventional rapid thermal annealing (RTA). IPIB irradiation enables superfast heating (higher than 10 9 K/s) and cooling, providing a superfast annealing solid-state dewetting mechanism. Our results demonstrate that the sphericity of silver NPs is enhanced after IPIB irradiation relative to RTA-annealed silver NPs. Our results suggest further possibilities of shape and sphericity control of silver NPs with very fast heating/cooling annealing rates.

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Layered Assembly of Silver Nanocubes/Polyelectrolyte/Gold Film as an Efficient Substrate for Surface-Enhanced Raman Scattering

Cited by 12 publications

References 50 publications

Recent Advances in Metallic Nanoparticle Assemblies for Surface-Enhanced Spectroscopy

Recent Advances in Metallic Nanoparticle Assemblies for Surface-Enhanced Spectroscopy

General Background of SERS Sensing and Perspectives on Polymer‐Supported Plasmon‐Active Multiscale and Hierarchical Sensor Particles

Solid-State Dewetting of Thin Silver Films into Spherical Nanoparticles under High-Current Pulsed Ion Beam Irradiation

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