Adsorption characteristics of Au nanoparticles onto poly(4-vinylpyridine) surface revealed by QCM, AFM, UV/vis, and Raman scattering spectroscopy

Kim, Kwan; Ryoo, Hyunwoo; Lee, Yoon Mi; Shin, Kuan Soo

doi:10.1016/j.jcis.2009.10.019

Cited by 27 publications

(16 citation statements)

References 41 publications

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“…In Raman spectra, new bands from grafted PSt and P4VP were observed in comparison with alkyne‐functionalized SNPs. The bands at 1032 and 1070 cm −1 are assigned as CH in‐plane bending from PSt and P4VP, respectively (Figure a). Meanwhile, the polymer grafted nanoparticles were dispersed in CDCl 3 and 1 H‐NMR signals were collected.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Polystyrene and Poly(4‐vinylpyridine) Mixed Grafted Silica Nanoparticles via a Combination of ATRP and Cu^I‐Catalyzed Azide‐Alkyne Click Chemistry

Glebe

Böker

2016

Macromol. Rapid Commun.

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Binary polystyrene and poly(4-vinylpyridine) mixed grafted silica nanoparticles (PSt/P4VP-g-SNPs) are fabricated using Cu -catalyzed azide-alkyne Huisgen cycloaddition (CuAAC) via grafting-to method. Azide-terminated PSt and P4VP are synthesized via post- and pre-atom transfer radical polymerization modification, respectively. Then, the polymers are simultaneously anchored onto alkyne-modified SNPs by CuAAC yielding mixed brushes as shown by Raman spectroscopy, dynamic light scattering, and thermogravimetric analysis. To the best of our knowledge, this is the first report of simultaneously grafting two distinct polymer chains to synthesize mixed grafted silica nanoparticles using CuAAC technique via grafting-to method.

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Section: Resultsmentioning

confidence: 99%

Synthesis of Polystyrene and Poly(4‐vinylpyridine) Mixed Grafted Silica Nanoparticles via a Combination of ATRP and Cu^I‐Catalyzed Azide‐Alkyne Click Chemistry

Glebe

Böker

2016

Macromol. Rapid Commun.

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“…The Raman peaks of P4VP were very clearly identifiable when Ag nanoparticles were deposited, even onto a P4VP film assembled using a 0.05 wt % solution (corresponding to a thickness of 2.2 nm); the assignment of Raman peaks of P4VP can be found in the literature: 1598 cm −1 (8a, ring stretch); 1201 cm −1 (9a, CH in-plane bend); 1068 cm −1 (18a, CH inplane bend); 999 cm −1 (1, ring breathing). [26][27][28][29][30] However, the P4VP peaks weakened rapidly as the thickness increased, becoming barely detectable when Ag nanoparticles were bound onto a P4VP film prepared using a 0.2 wt % solution (corresponding to a thickness of 9.1 nm).…”

Section: Resultsmentioning

confidence: 99%

Effect of Foreign Molecules on the SERS of Probe Molecules Trapped in Gaps between Planar Ag and Nano-sized Ag Particles

Kim¹,

Choi²,

Shin³

2013

Bulletin of the Korean Chemical Society

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A few years ago, the plasmon-induced electronic coupling (PIEC) model was proposed in the literature to explain small changes in the surface-enhanced Raman scattering (SERS) in nanogap systems. If this model is correct, it will be very helpful in both basic and application fields. In light of this, we carefully reexamined its appropriateness. Poly(4-vinylpyridine) (P4VP) used in the earlier work was, however, never a proper layer, since most adsorbates not only adsorbed onto Ag nanoparticles sitting on P4VP but also penetrated into the P4VP layer deposited initially onto a flat Ag substrate, ultimately ending up in the SERS hot sites. Using 1,4-phenylenediisocyanide and 4-nitrophenol as the affixing layer and the foreign adsorbate, respectively, we could clearly reveal that the PIEC model is not suited for explaining the Raman signal in a nanogap system. Most of the Raman signal must have arisen from molecules situated at the gap center.

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“…A number of papers discussed the interactions of nanoparticles derived from metals, metal oxides and polymers, and are more related to the study of materials rather than small molecule interactions, and as such are not discussed in more detail here (Dultsev et al ., ; Erol et al ., ; Fatisson et al ., ; Herrera et al ., ; Jiang et al ., ; Kim et al ., ; Kim et al ., ; Reipa et al ., ; Schubert et al ., ; Venditti et al ., ).…”

Section: Small Molecule Interactionsmentioning

confidence: 99%

A Survey of the 2010 Quartz Crystal Microbalance Literature

Speight

Cooper

2012

J of Molecular Recognition

135

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In 2010 there has again been an increase in the number of papers published involving piezoelectric acoustic sensors, or quartz crystal microbalances (QCM), when compared to the last period reviewed 2006-2009. The average number of QCM publications per annum was 124 in the period 2001-2005, 223 in the period 2006-9, and 273 in 2010. There are trends towards increasing use of QCM in the study of protein adsorption to surfaces (93% increase), homeostasis (67% increase), protein-protein interactions (40% increase), and carbohydrates (43% increase). New commercial systems have been released that are driving the uptake of the technology for characterisation of binding specificities, affinities, kinetics and conformational changes associated with a molecular recognition event. This article highlights theoretical and practical aspects of the principals that underpin acoustic analysis, then reviews exemplary papers in key application areas involving small molecular weight ligands, carbohydrates, proteins, nucleic acids, viruses, bacteria, cells, and membrane interfaces.

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Adsorption characteristics of Au nanoparticles onto poly(4-vinylpyridine) surface revealed by QCM, AFM, UV/vis, and Raman scattering spectroscopy

Cited by 27 publications

References 41 publications

Synthesis of Polystyrene and Poly(4‐vinylpyridine) Mixed Grafted Silica Nanoparticles via a Combination of ATRP and Cu^I‐Catalyzed Azide‐Alkyne Click Chemistry

Synthesis of Polystyrene and Poly(4‐vinylpyridine) Mixed Grafted Silica Nanoparticles via a Combination of ATRP and Cu^I‐Catalyzed Azide‐Alkyne Click Chemistry

Effect of Foreign Molecules on the SERS of Probe Molecules Trapped in Gaps between Planar Ag and Nano-sized Ag Particles

A Survey of the 2010 Quartz Crystal Microbalance Literature

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Adsorption characteristics of Au nanoparticles onto poly(4-vinylpyridine) surface revealed by QCM, AFM, UV/vis, and Raman scattering spectroscopy

Cited by 27 publications

References 41 publications

Synthesis of Polystyrene and Poly(4‐vinylpyridine) Mixed Grafted Silica Nanoparticles via a Combination of ATRP and CuI‐Catalyzed Azide‐Alkyne Click Chemistry

Synthesis of Polystyrene and Poly(4‐vinylpyridine) Mixed Grafted Silica Nanoparticles via a Combination of ATRP and CuI‐Catalyzed Azide‐Alkyne Click Chemistry

Effect of Foreign Molecules on the SERS of Probe Molecules Trapped in Gaps between Planar Ag and Nano-sized Ag Particles

A Survey of the 2010 Quartz Crystal Microbalance Literature

Contact Info

Product

Resources

About

Synthesis of Polystyrene and Poly(4‐vinylpyridine) Mixed Grafted Silica Nanoparticles via a Combination of ATRP and Cu^I‐Catalyzed Azide‐Alkyne Click Chemistry

Synthesis of Polystyrene and Poly(4‐vinylpyridine) Mixed Grafted Silica Nanoparticles via a Combination of ATRP and Cu^I‐Catalyzed Azide‐Alkyne Click Chemistry