Long‐Term Stable Silver Subsurface Ion‐Exchanged Glasses for SERS Applications

Simo, Anne; Joseph, Virginia; Fenger, Robert; Kneipp, Janina; Rademann, Klaus

doi:10.1002/cphc.201100098

Cited by 26 publications

(18 citation statements)

References 43 publications

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“…In our earlier studies, no Raman band was observed for the Ag ion exchanged glass samples annealed at the different temperatures which gave a clear indication that the silver NCs were embedded in the glass matrix as metallic silver clusters and not respond to Raman spectroscopy. Simo et al, reported the SERS studies of Ag ion exchange samples after removing the glass layer on the surface of the Ag NCs . Our results focused only on the surface concentration of Ag + against antimicrobial activities.…”

Section: Resultsmentioning

confidence: 94%

Study of Tunable Plasmonic, Photoluminscence, and Nonlinear Optical Behavior of Ag Nanoclusters Embedded in a Glass Matrix for Multifunctional Applications

Kumar¹,

Mathpal²,

Prakash

et al. 2018

Physica Status Solidi (a)

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Plasmonic based hybrid noble metal nanoclusters (NCs) have gained much interest in various technological applications such as optoelectronics, photonic devices and nonlinear media including biomedical applications due to their tunable optical properties. Here, Ag NCs are grown as embedded in glass using simple ion-exchange process and effect of various parameter including post thermal treatment is studied on tunability of their optical behavior (plasmonic, optical nonlinearity, and photoluminescence properties) in view of their potential applications in nanophotonics devices and as nonlinear media. The tunable optical, structural and thermodynamic properties associated with the rapid growth and agglomeration of Ag NCs in the glass is also studied under the post thermal treatment process. The various techniques such as XRD, RBS, Z-scan and UV-vis, XPS, PL and TEM are used for characterizing ion exchanged samples. A blue shift of 15 nm is observed significantly in optical absorbance as a function of post thermal treatment. Open and closed aperture Z-scan experiments show strong nonlinear absorption coefficients for the Ag NCs. The thermodynamic parameters such as enthalpy (ΔH), entropy (ΔS) and Gibbs energy (ΔG) for the nucleation and growth of the Ag NCs in the glass matrix are calculated at different temperatures with an activation energy of 59 kJ mol À1 obtained by the Arrhenius linear equation and a model is suggested. In addition, these Ag NCs embedded glasses exhibit good antimicrobial activities (against E. coli bacteria) with a change in antibacterial behavior at higher annealing temperature indicating their multifunctional applications. status solidi physica a Surface Plasmon Resonance www.pss-a.com

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Section: Resultsmentioning

confidence: 94%

Study of Tunable Plasmonic, Photoluminscence, and Nonlinear Optical Behavior of Ag Nanoclusters Embedded in a Glass Matrix for Multifunctional Applications

Kumar¹,

Mathpal²,

Prakash

et al. 2018

Physica Status Solidi (a)

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“…SERS substrates have been prepared by imbedding Ag or Au NPs in soda-lime glass [75,76,77]. A combined thermal and chemical methodology was developed to synthesize Ag NPs in soda-lime silicate glass [75].…”

Section: Resultsmentioning

confidence: 99%

“…A combined thermal and chemical methodology was developed to synthesize Ag NPs in soda-lime silicate glass [75]. Silver ions were introduced into glass by immersing glass slides in a 1:2 AgNO 3 /NaNO 3 molten salt bath mixture.…”

Section: Resultsmentioning

confidence: 99%

Review of SERS Substrates for Chemical Sensing

2017

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The SERS effect was initially discovered in the 1970s. Early research focused on understanding the phenomenon and increasing enhancement to achieve single molecule detection. From the mid-1980s to early 1990s, research started to move away from obtaining a fundamental understanding of the phenomenon to the exploration of analytical applications. At the same time, significant developments occurred in the field of photonics that led to the advent of inexpensive, robust, compact, field-deployable Raman systems. The 1990s also saw rapid development in nanoscience. This convergence of technologies (photonics and nanoscience) has led to accelerated development of SERS substrates to detect a wide range of chemical and biological analytes. It would be a monumental task to discuss all the different kinds of SERS substrates that have been explored. Likewise, it would be impossible to discuss the use of SERS for both chemical and biological detection. Instead, a review of the most common metallic (Ag, Cu, and Au) SERS substrates for chemical detection only is discussed, as well as SERS substrates that are commercially available. Other issues with SERS for chemical detection have been selectivity, reversibility, and reusability of the substrates. How these issues have been addressed is also discussed in this review.

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“…Adenine is one such frequently studied biomolecule. Its intense surface‐enhanced Raman spectroscopy (SERS) signal has led to its frequent use as an example biomolecule to test and characterize SERS‐active substrates, for demonstration of single‐molecule detection, for detection of diseases and for determination of DNA hybridization, adsorption orientation, and quantification of nucleobase content . Furthermore, examining the spectral contribution of adenine and the other nucleobases has allowed for characterization of the adsorption of large complex biomolecules such as DNA and its components, as well as the cofactors flavin adenine dinucleotide (FAD) and nicotinamide adenine dinucleotide (NAD) .…”

Section: Introductionmentioning

confidence: 99%

The Controversial Orientation of Adenine on Gold and Silver

Harroun

2018

ChemPhysChem

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In which orientation does adenine adsorb on gold and silver surfaces? This question has been a matter of debate for over 30 years. Since the dawn of surface-enhanced Raman spectroscopy (SERS); it and other techniques such as tip-enhanced Raman spectroscopy (TERS), surface-enhanced infrared absorption spectroscopy (SEIRAS), scanning tunneling microscopy (STM), density functional theory (DFT) simulations, and more, have been used in many attempts to answer this seemingly straightforward, yet controversial, question. Herein, the timeline and recent advances on this topic are explored, and the frequently contradictory findings are put into context and discussed.

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Long‐Term Stable Silver Subsurface Ion‐Exchanged Glasses for SERS Applications

Cited by 26 publications

References 43 publications

Study of Tunable Plasmonic, Photoluminscence, and Nonlinear Optical Behavior of Ag Nanoclusters Embedded in a Glass Matrix for Multifunctional Applications

Study of Tunable Plasmonic, Photoluminscence, and Nonlinear Optical Behavior of Ag Nanoclusters Embedded in a Glass Matrix for Multifunctional Applications

Review of SERS Substrates for Chemical Sensing

The Controversial Orientation of Adenine on Gold and Silver

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