Thermostable gold nanoparticle-doped silicone elastomer for optical materials

Yan, Lei; Li, Jihong; Liu, Na; Hao, Xiongwen; Li, Chunfang; Hou, Wanguo; Li, D.X.

doi:10.1016/j.colsurfa.2017.01.028

Cited by 7 publications

(6 citation statements)

References 47 publications

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“…This reaction is well-known as Pt-catalyzed hydrosilylation. The hydrosilylation reaction has been used as a method of modifying silicone elastomers [31,32,33,34,35].…”

Section: Resultsmentioning

confidence: 99%

Facile Functionalization of Poly(Dimethylsiloxane) Elastomer by Varying Content of Hydridosilyl Groups in a Crosslinker

Park

Choi

et al. 2019

Polymers

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Crosslinked poly(dimethylsiloxane) (PDMS) has been widely used as a dielectric elastomer for electrically driven actuators because it exhibits high elasticity, low initial modulus, and excellent moldability in spite of low dielectric constant. However, further improvement in the characteristics of the PDMS elastomer is not easy due to its chemical non-reactivity. Here, we report a simple method for functionalizing the elastomer by varying content of hydridosilyl groups in PDMS acted as a crosslinker. We synthesized poly(dimethylsiloxane-co-methylvinylsiloxane) (VPDMS) and poly(dimethylsiloxane-co-methylsiloxane) (HPDMS). Tri(ethylene glycol) divinyl ether (TEGDE) as a polar molecule was added to the mixture of VPDMS and HPDMS. TEGDE was reacted to the hydridosilyl group in HPDMS during crosslinking between VPDMS and HPDMS in the presence of platinum as a catalyst. Permittivity of the crosslinked film increased from ca. 25 to 36 pF/m at 10 kHz without a decline in other physical properties such as transparency and elasticity (T > 85%, E ~150 kPa, ɛ ~270%). It depends on the hydridosilyl group content of HPDMS. The chemical introduction of a new molecule into the hydridosilyl group in HPDMS during crosslinking would provide a facile, effective method of modifying the PDMS elastomers.

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“…This reaction is well-known as Pt-catalyzed hydrosilylation. The hydrosilylation reaction has been used as a method of modifying silicone elastomers [31,32,33,34,35].…”

Section: Resultsmentioning

confidence: 99%

Facile Functionalization of Poly(Dimethylsiloxane) Elastomer by Varying Content of Hydridosilyl Groups in a Crosslinker

Park

Choi

et al. 2019

Polymers

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“…AuNPs prepared in aqueous reagent have a tendency to agglomerate in organic PDMS [24]. Herein, we adopted a method of silica coating and dodecanol modification to make AuNPs dispersed in ethanol that are miscible with PDMS prepolymer, as shown in Figure 1.…”

Section: Preparation Of Aunps and Aunps-pdmsmentioning

confidence: 99%

An LED-Driven AuNPs-PDMS Microfluidic Chip and Integrated Device for the Detection of Digital Loop-Mediated Isothermal DNA Amplification

Zhang

Zhao

et al. 2020

Micromachines

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The sensitive quantification of low-abundance nucleic acids holds importance for a range of clinical applications and biological studies. In this study, we describe a facile microfluidic chip for absolute DNA quantifications based on the digital loop-mediated isothermal amplification (digital LAMP) method. This microfluidic chip integrates a cross-flow channel for droplet generation with a micro-cavity for droplet tiling. DNA templates in the LAMP reagent were divided into ~20,000 water-in-oil droplets at the cross-flow channel. The droplets were then tiled in the micro-cavity for isothermal amplification and fluorescent detection. Different from the existing polydimethylsiloxane (PDMS) microfluidic chips, this study incorporates gold nanoparticles (AuNPs) into PDMS substrate through silica coating and dodecanol modification. The digital LAMP chip prepared by AuNPs-PDMS combines the benefits of the microstructure manufacturing performance of PDMS with the light-to-heat conversion advantages of AuNPs. Upon illumination with a near infrared (NIR) LED, the droplets were stably and efficiently heated by the AuNPs in PDMS. We further introduce an integrated device with a NIR heating unit and a fluorescent detection unit. The system could detect HBV (hepatitis B virus)-DNA at a concentration of 1 × 101 to 1 × 104 copies/μL. The LED-driven digital LAMP chip and the integrated device; therefore, demonstrate high accuracy and excellent performance for the absolute quantification of low-abundance nucleic acids, showing the advantages of integration, miniaturization, cost, and power consumption.

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“…3 Noble NPs such as Au or Ag with their distinctive optical properties connected with the surface plasmon resonance are often used for creation of metal-polymer nanocomposites. 4,5 Poly(methyl methacrylate) and poly(dimethylsiloxane) (PDMS) are used as the transparent polymers for such task. These two materials are also widely used in ion beam lithography as positive and negative resist, 6 respectively, since they are applicable for creating microstructures with high aspect ratio (in the case in question, the ratio between length/width on the surface and height into the material).…”

Section: Introductionmentioning

confidence: 99%

“…Nanoparticles (NPs) integrated into a polymer matrix arouses interest of the scientific community due to their potential uses in biomedical, 1 optical, and magnetic 2 sensor application 3 . Noble NPs such as Au or Ag with their distinctive optical properties connected with the surface plasmon resonance are often used for creation of metal‐polymer nanocomposites 4,5 . Poly(methyl methacrylate) and poly(dimethylsiloxane) (PDMS) are used as the transparent polymers for such task.…”

Section: Introductionmentioning

confidence: 99%

The influence of Au‐nanoparticles presence in PDMS on microstructures creation by ion beam lithography

Romanenko

Slepička

Malínský

et al. 2020

Surface & Interface Analysis

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3D microstructures in pure poly(dimethylsiloxane) (PDMS) and PDMS with embedded Au nanoparticles were prepared by ion beam lithography without any further etching. Two mega‐electron volts helium and 10 MeV oxygen ions were used for ion microstructuring. Parallel lines of 1 mm in length and 10 μm in thickness were fabricated for investigation of the effect of the nanoparticles presence in the polymer on the surface morphology of the created microstructures. The created microstructures were checked by optical microscope. Infrared (IR) spectrometry was used to study the effect of the ions type and fluence on the chemical changes of the material. Atomic force microscopy was used for the fine detail study as well as for checking the microstructure quality. Analysis revealed an increased radiation resistance of the nanocomposite compared to the pure PDMS. Shrinkage is proportional to the fluence, but the maximum value for both materials is limited by saturation. 3D microstructure in modified PDMS obtained at the same irradiation condition as pure PDMS is characterized by its smaller height. Obtaining the microstructure in nanocomposite of the same height as in pure PDMS by increasing the fluence can be impossible due to saturation of shrinkage and/or radiation‐induced heating of the material.

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Thermostable gold nanoparticle-doped silicone elastomer for optical materials

Cited by 7 publications

References 47 publications

Facile Functionalization of Poly(Dimethylsiloxane) Elastomer by Varying Content of Hydridosilyl Groups in a Crosslinker

Facile Functionalization of Poly(Dimethylsiloxane) Elastomer by Varying Content of Hydridosilyl Groups in a Crosslinker

An LED-Driven AuNPs-PDMS Microfluidic Chip and Integrated Device for the Detection of Digital Loop-Mediated Isothermal DNA Amplification

The influence of Au‐nanoparticles presence in PDMS on microstructures creation by ion beam lithography

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