Synthetic strategies for nonporous organosilica nanoparticles from organosilanes

Zou, Hua; Ren, Yafei

doi:10.1039/d3nr00791j

Cited by 6 publications

(3 citation statements)

References 128 publications

(278 reference statements)

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“…Therefore, spontaneous emulsification has been applied to various technologies, such as for drug carrier preparation, 4,5 microanalysis, 6–10 and micro- and nanomaterial synthesis. 11–17…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, spontaneous emulsification has been applied to various technologies, such as for drug carrier preparation, 4,5 microanalysis, [6][7][8][9][10] and micro-and nanomaterial synthesis. [11][12][13][14][15][16][17] Understanding the mechanism of spontaneous emulsification is important for industrial applications. There are several surfactants used for spontaneous emulsification, such as Aerosol-OT, 18 trimethyloctadecylammonium bromide, 15,16 Tween series 3 and Brij series.…”

Section: Introductionmentioning

confidence: 99%

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Kinetic description of water transport during spontaneous emulsification induced by Span 80

Fukuyama,

Mizuguchi,

Santivongskul

et al. 2024

Nanoscale

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Kinetic description of water transport during spontaneous emulsification induced by Span 80

Fukuyama,

Mizuguchi,

Santivongskul

et al. 2024

Nanoscale

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“…Mesoporous organosilica nanoparticles represent an even more interesting but much less studied class of materials [3,4]. While silica inherently have only the silanol reactive groups, the introduction of organosilanes gives them beneficial organic features [5]. They combine the properties of organic and silica materials and have emerged as a class of hybrid materials with diverse potential applications in catalysis, drug delivery, imaging, and more.…”

Section: Introductionmentioning

confidence: 99%

The Synthesis and Reactivity of Mesoporous and Surface-Rough Vinyl-Containing ORMOSIL Nanoparticles

Walton,

Brozek,

Gwinn

et al. 2024

Colloids and Interfaces

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Silica nanoparticles synthesized solely from organosilanes naturally possess a greater number of organic functionalities than silica nanoparticles surface-modified with organosilanes. We report the synthesis of organically modified silica (ORMOSIL) nanoparticles with a mesoporous and surface-rough morphology and with a high surface area, made solely from vinyltrimethoxy silane. We chemically modified these vinyl silica nanoparticles using bromination and hydroboration, and demonstrated the high accessibility and reactivity of the vinyl groups with an ~85% conversion of the functional groups for the bromination of both particle types, a ~60% conversion of the functional groups for the hydroboration of surface-rough particles and a 90% conversion of the functional groups for the hydroboration of mesoporous particles. We determined that the mesoporous vinyl silica nanoparticles, while having a surface area that lies between the non-porous and surface-rough vinyl silica nanoparticles, provide the greatest accessibility to the vinyl groups for boronation and allow for the incorporating of up to 3.1 × 106 B atoms per particle, making the resulting materials attractive for boron neutron capture therapy.

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Polysilsesquioxane Open Hollow Spheres for Heavy Metal Ions Adsorption

Yang,

Xiong,

Dong

2024

Chemistry A European J

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Hollow microspheres with open windows on the shells have shown significant potential in adsorption, catalysis, and drug delivery fields, owing to their low density, large interior volume, high specific surface area, and abundant availability of adsorption sites. However, creating open hollow spheres with structurally stable and entirely organic‐functionalized surfaces remains a challenge. Herein, we fabricated polysilsesquioxane open hollow spheres using trialkoxysilane containing mercaptopropyl groups under vigorous stirring, employing polystyrene microspheres as template. Various reaction parameters were explored, revealing stirring speed as the key factor influencing the morphology and openness of the microspheres. By examining the morphology of intermediate products at different reaction times, we proposed a step‐growth mechanism for microsphere formation. The resulting materials exhibited high adsorption capacity and selectivity towards Hg2+ and Pb2+, attributed to the presence of thiol groups and the open‐hollow structure. Our approach provides a robust method for producing open hollow materials with functionalized surfaces, offering potential applications in the adsorption field.

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Synthetic strategies for nonporous organosilica nanoparticles from organosilanes

Abstract: Organosilica nanoparticles refer to silica nanoparticles containing carbons and accompanying organic or functional groups, which can be divided into mesoporous organosilica nanoparticles and nonporous organosilica nanoparticles. During the past decades,...

Cited by 6 publications

References 128 publications

Kinetic description of water transport during spontaneous emulsification induced by Span 80

Kinetic description of water transport during spontaneous emulsification induced by Span 80

The Synthesis and Reactivity of Mesoporous and Surface-Rough Vinyl-Containing ORMOSIL Nanoparticles

Polysilsesquioxane Open Hollow Spheres for Heavy Metal Ions Adsorption

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