Proton conduction mechanisms in GPTMS/TEOS-derived organic/silica hybrid films prepared by sol-gel process

Monteiro, Daniela Aparecida; Gozzi, Giovani; Chinaglia, Dante Luís; Oliveira, Osvaldo N.; Vicente, F.

doi:10.1016/j.synthmet.2020.116448

Cited by 7 publications

(2 citation statements)

References 38 publications

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“…The vibrations of the methylene group –CH 2 detected at 1466 cm −1 came from long aliphatic hydrocarbons of the broken epoxy ring (from GPTMS) [ 38 , 40 , 41 , 42 ]. These results indicated that part of the epoxy rings from GPTMS may have broken during the heat treatment [ 43 ]. Additionally, the large increase in the intensity of bands in the range of 2830–3020 cm −1 was observed, which may have meant that, besides the –OH groups for which this region is characteristic, the C–H vibrations of unreacted epoxy rings from GPTMS were also detected [ 44 ].…”

Section: Resultsmentioning

confidence: 99%

Influence of Zirconia and Organic Additives on Mechanical and Electrochemical Properties of Silica Sol-Gel Coatings

et al. 2021

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This paper presents the result of the investigation of organically modified silica (ORMOSIL)-zirconia coatings used to enhance their protective properties, namely corrosion and scratch resistance. Two different materials, i.e., SiO2/ZrO2 and SiO2/GPTMS/ZrO2, were synthesized, measured, and analyzed to find the difference in the used organosilane precursor (dimethyldiethoxysilane and (3-glycidoxypropyl)trimethoxysilane, respectively). SiO2/ZrO2 coatings showed higher hardness than SiO2/GPTMS/ZrO2. Moreover, the value of polarization resistance (Rp) for SiO2/GPTMS/ZrO2 coated 316L steel relative to the uncoated one was obtained. It was nearly 84 times higher. The coating delamination was observed with load 16N. Additionally, the corrosion mitigation for 316L coated by SiO2/GPTMS/ZrO2 was observed even after extended exposure to corrosion agents.

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Section: Resultsmentioning

confidence: 99%

Influence of Zirconia and Organic Additives on Mechanical and Electrochemical Properties of Silica Sol-Gel Coatings

et al. 2021

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“…An additional absorption feature is visible at roughly 2840 cm −1 , attributed to the first overtone of the hydroxyl group stretching mode. Furthermore, absorption bands are present at 1080 and 878 cm −1 , which are typically ascribed to Si-CH 2 and Si-O vibrations, respectively [26,[45][46][47]. The hydroxyl group presence is especially noteworthy as it constitutes a reactive site that can be modified with a variety of silane reagents carrying different functional groups, such as amino (-NH 2 ), thiol (-SH), and alkyne (-C≡C-).…”

Section: Comparative Analysis Of Functionalization Efficiency On Zno ...mentioning

confidence: 99%

Metal Oxide Nanostructures Enhanced Microfluidic Platform for Efficient and Sensitive Immunofluorescence Detection of Dengue Virus

Pormrungruang,

Phanthanawiboon,

Jessadaluk

et al. 2023

Nanomaterials

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Rapid and sensitive detection of Dengue virus remains a critical challenge in global public health. This study presents the development and evaluation of a Zinc Oxide nanorod (ZnO NR)-surface-integrated microfluidic platform for the early detection of Dengue virus. Utilizing a seed-assisted hydrothermal synthesis method, high-purity ZnO NRs were synthesized, characterized by their hexagonal wurtzite structure and a high surface-to-volume ratio, offering abundant binding sites for bioconjugation. Further, a comparative analysis demonstrated that the ZnO NR substrate outperformed traditional bare glass substrates in functionalization efficiency with 4G2 monoclonal antibody (mAb). Subsequent optimization of the functionalization process identified 4% (3-Glycidyloxypropyl)trimethoxysilane (GPTMS) as the most effective surface modifier. The integration of this substrate within a herringbone-structured microfluidic platform resulted in a robust device for immunofluorescence detection of DENV-3. The limit of detection (LOD) for DENV-3 was observed to be as low as 3.1 × 10−4 ng/mL, highlighting the remarkable sensitivity of the ZnO NR-integrated microfluidic device. This study emphasizes the potential of ZnO NRs and the developed microfluidic platform for the early detection of DENV-3, with possible expansion to other biological targets, hence paving the way for enhanced public health responses and improved disease management strategies.

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Simple and effective sol-gel methodology to obtain a bactericidal coating for prostheses

Molina,

Valero-Gómez,

Pocoví-Martínez

et al. 2023

J Sol-Gel Sci Technol

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Proton conduction mechanisms in GPTMS/TEOS-derived organic/silica hybrid films prepared by sol-gel process

Cited by 7 publications

References 38 publications

Influence of Zirconia and Organic Additives on Mechanical and Electrochemical Properties of Silica Sol-Gel Coatings

Influence of Zirconia and Organic Additives on Mechanical and Electrochemical Properties of Silica Sol-Gel Coatings

Metal Oxide Nanostructures Enhanced Microfluidic Platform for Efficient and Sensitive Immunofluorescence Detection of Dengue Virus

Simple and effective sol-gel methodology to obtain a bactericidal coating for prostheses

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