Silanization of solid surfaces via mercaptopropylsilatrane: a new approach of constructing gold colloid monolayers

Chen, Wen Hao; Tseng, Yen Ta; Hsieh, Shuchen; Liu, Wan Chun; Hsieh, Chiung Wen; Wu, C.; Huang, Chen; Lin, Hsing Ying; Chen, Chao-Wen; Lin, Pei; Chau, Lai-Kwan

doi:10.1039/c4ra05583g

Cited by 68 publications

(60 citation statements)

References 54 publications

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“…These results also indicated that the main composition of CFA is silica . The condensation reaction between Si‐OH of silane coupling agents and Si‐OH in silica surface were considered as main reason of the success of the silanization processing . The co‐polymerization between double bond of methacryloxy groups in CFA surface and double bond of VE resin makes the strong connection between CFA and VE resin chains.…”

Section: Resultsmentioning

confidence: 77%

Simultaneous effects of silanized coal fly ash and nano/micro glass fiber on fracture toughness and mechanical properties of carbon fiber‐reinforced vinyl ester resin composites

Nguyen

Phúc

et al. 2018

Polymer Engineering & Sci

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In this study, the simultaneous effects of both silanized coal fly ash (S‐CFA) and nano/micro glass fiber (nGF) on fracture toughness and mechanical properties of vinyl ester (VE) resin filled with carbon fiber‐based composite materials were investigated. The CFA was treated with (3‐trimethoxysilyl) propyl methacrylate to introduce the methacryloxy groups into the surface of CFA, and was confirmed by using FTIR technique. The nGF and S‐CFA with different weight ratios were well mixed with VE resin by using of high‐speed mechanical stirrer, and ultrasonic technique before using as matrices for fabrication of carbon fiber‐based composite materials via sheet molding compound (SMC) method and hot curing processing. Many characteristics of both cured VE resin composites and carbon fiber‐based composite were examined such as mechanical properties, fracture toughness, and morphology. The results showed that by adding of both 0.1 wt% nGF and 1 wt% S‐CFA into VE resin the tensile strength, tensile modulus, flexural strength, KIC, impact strength as well as the Mode I interlaminar fracture toughness (GIC) of VE composites and carbon fiber based composites get optimum values and increased about 61.39%; 39.83%; 36.21%; 103.1%; 81.79%; 48.61%, respectively when compared with pristine materials. POLYM. ENG. SCI., 59:584–591, 2019. © 2018 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 77%

Simultaneous effects of silanized coal fly ash and nano/micro glass fiber on fracture toughness and mechanical properties of carbon fiber‐reinforced vinyl ester resin composites

Nguyen

Phúc

et al. 2018

Polymer Engineering & Sci

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“…bonding and those at 286.2 eV at 286.5 eV C-N bonds. 33,34 The N peaks in Figure 1(c) and (f) confirm the surface attachment of the organosilanes, with peak positions at 400.0 eV for APS and two peaks at 399.4 eV and 400.7 eV for APTMS. Amine groups at 400 eV are defined as nonprotonated or "free NH 2 ", while the additional peaks of at 400. comparison, the silicon substrate RMS value is 0.2 nm.…”

Section: Sio 2 Surface Functionalization With Organosilanesmentioning

confidence: 73%

Aminopropylsilatrane Linkers for Easy and Fast Fabrication of High-Quality 10 nm Thick Gold Films on SiO₂ Substrates

Heinig

Fanta

Wagner

et al. 2020

ACS Appl. Nano Mater.

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Fabricating smooth and contamination-free sub-10 nm thick gold layers on dielectric substrates is of interest for a number of applications, including plasmonics, metamaterials, and nanoelectronics. Metallic adhesion layers are often used to facilitate good adhesion between gold and substrates, but at the cost of interfacial alloying and subsequent deterioration of the optical and electrical properties of the thin films. Another approach for promoting adhesion between gold and SiO 2 substrates is the use of self-assembled organosilane monolayer linkers, such as (3aminopropyl)trimethoxysilane (APTMS). APTMS, however, is a corrosive chemical, and its monolayer preparation is highly sensitive to ambient conditions. Here, we introduce an easy and fast immersion process using (3-aminopropyl)-silatrane (APS) for achieving smooth and high-purity gold films and compare its performance to APTMS. Our APS recipe is water based, does not require environmental considerations, and has approximately 6 times faster deposition time than APTMS (30 min vs 3 h). The results demonstrate that both organic molecules promote the formation of continuous and smooth 10 nm thick gold films, without leading to considerable chemical intermixing at the interface. Monitoring the growth evolution of the gold layer indicates a threshold thickness of 6−7 nm for obtaining continuous films. Overall, the ease of use, faster processing time and low toxicity of APS make it an attractive choice for fabricating high-quality ultrathin gold films on SiO 2 substrates.

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“…To enhance the adherence of gold on silica substrates, different methods have been investigated, such as the deposition of 2–3 nm of chromium or titanium under the Au layer [ 72 ], ion beam bombardment [ 73 ] and finally, the use of polymers and adhesive molecules [ 74 ]. Another option consists in thermally annealing the gold film, modifying its morphology [ 75 ] and consequently, the sensor’s potential of detection [ 76 ].…”

Section: Interactions With Metals and Surface Biochemical Functionmentioning

confidence: 99%

Plasmonic Optical Fiber-Grating Immunosensing: A Review

Guo

González-Vila

Loyez

et al. 2017

Sensors

112

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Plasmonic immunosensors are usually made of a noble metal (in the form of a film or nanoparticles) on which bioreceptors are grafted to sense analytes based on the antibody/antigen or other affinity mechanism. Optical fiber configurations are a miniaturized counterpart to the bulky Kretschmann prism and allow easy light injection and remote operation. To excite a surface plasmon (SP), the core-guided light is locally outcoupled. Unclad optical fibers were the first configurations reported to this end. Among the different architectures able to bring light in contact with the surrounding medium, a great quantity of research is today being conducted on metal-coated fiber gratings photo-imprinted in the fiber core, as they provide modal features that enable SP generation at any wavelength, especially in the telecommunication window. They are perfectly suited for use with cost-effective high-resolution interrogators, allowing both a high sensitivity and a low limit of detection to be reached in immunosensing. This paper will review recent progress made in this field with different kinds of gratings: uniform, tilted and eccentric short-period gratings as well as long-period fiber gratings. Practical cases will be reported, showing that such sensors can be used in very small volumes of analytes and even possibly applied to in vivo diagnosis.

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Silanization of solid surfaces via mercaptopropylsilatrane: a new approach of constructing gold colloid monolayers

Abstract: Mercaptopropylsilatrane (MPS) was investigated as a novel self-assembled film on silica surfaces and also as a novel adhesive layer for the construction of a gold colloid monolayer on silica surfaces.

Cited by 68 publications

References 54 publications

Simultaneous effects of silanized coal fly ash and nano/micro glass fiber on fracture toughness and mechanical properties of carbon fiber‐reinforced vinyl ester resin composites

Simultaneous effects of silanized coal fly ash and nano/micro glass fiber on fracture toughness and mechanical properties of carbon fiber‐reinforced vinyl ester resin composites

Aminopropylsilatrane Linkers for Easy and Fast Fabrication of High-Quality 10 nm Thick Gold Films on SiO₂ Substrates

Plasmonic Optical Fiber-Grating Immunosensing: A Review

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Silanization of solid surfaces via mercaptopropylsilatrane: a new approach of constructing gold colloid monolayers

Abstract: Mercaptopropylsilatrane (MPS) was investigated as a novel self-assembled film on silica surfaces and also as a novel adhesive layer for the construction of a gold colloid monolayer on silica surfaces.

Cited by 68 publications

References 54 publications

Simultaneous effects of silanized coal fly ash and nano/micro glass fiber on fracture toughness and mechanical properties of carbon fiber‐reinforced vinyl ester resin composites

Simultaneous effects of silanized coal fly ash and nano/micro glass fiber on fracture toughness and mechanical properties of carbon fiber‐reinforced vinyl ester resin composites

Aminopropylsilatrane Linkers for Easy and Fast Fabrication of High-Quality 10 nm Thick Gold Films on SiO2 Substrates

Plasmonic Optical Fiber-Grating Immunosensing: A Review

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Aminopropylsilatrane Linkers for Easy and Fast Fabrication of High-Quality 10 nm Thick Gold Films on SiO₂ Substrates