Synthesis and Site‐Specific Functionalization of Tetravalent, Hexavalent, and Dodecavalent Silica Particles

Désert, Anthony; Hubert, Céline; Fu, Zheng; Moulet, Lucie; Majimel, Jérôme; Barboteau, Philippe; Thill, Antoine; Lansalot, Muriel; Bourgeat‐Lami, Élodie; Duguet, Étienne; Ravaine, Serge

doi:10.1002/anie.201304273

Cited by 64 publications

(66 citation statements)

References 33 publications

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“…Paula et al found that the formation of MSNs with center‐radial large pore size (Table , line 18) may be induced by hydrophobic groups during hydrolysis and co‐condensation of phenyltriethoxysilane and TEOS, and their self‐assembly process with CTAB. Ravaine's group developed a high‐yield chemical route for the preparation of tetra‐, hexa‐, and dodecavalent silica particles via the limited growth of the silica core using the corresponding binary polystyrene (PS)/silica multipods (tetra‐, hexa‐ or dodeca‐pods) as special hard templates, and these special hard templates can be controllably synthesized by a seeded‐growth emulsion method ( Figure ). Wiesner reported a one‐pot synthesis approach for novel multicompartment MSNs containing a core with a cage‐like cubic mesopore phase and up to four branches with hexagonally packed cylindrical mesopore phase, which epitaxially grow out of the cubic core vertices.…”

Section: Synthesis Methods Of Dendritic Silica Particles With Center‐mentioning

confidence: 99%

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Dendritic Silica Particles with Center-Radial Pore Channels: Promising Platforms for Catalysis and Biomedical Applications

Qiao

2014

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Dendritic silica micro-/nanoparticles with center-radial pore structures, a kind of newly created porous material, have attracted considerable attention owing to their unique open three-dimensional dendritic superstructures with large pore channels and highly accessible internal surface areas compared with conventional mesoporous silica nanoparticles (MSNs). They are very promising platforms for a variety of applications in catalysis and nanomedicine. In this review, their unique structural characteristics and properties are first analyzed, then novel and interesting synthesis methods associated with the possible formation mechanisms are summarized to provide material scientists some inspiration for the preparation of this kind of dendritic particles. Subsequently, a few examples of interesting applications are presented, mainly in catalysis, biomedicine, and other important fields such as for sacrificial templates and functional coatings. The review is concluded with an outlook on the prospects and challenges in terms of their controlled synthesis and potential applications.

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Section: Synthesis Methods Of Dendritic Silica Particles With Center‐mentioning

confidence: 99%

Section: Synthesis Methods Of Dendritic Silica Particles With Center‐mentioning

confidence: 99%

Dendritic Silica Particles with Center-Radial Pore Channels: Promising Platforms for Catalysis and Biomedical Applications

Qiao

2014

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277

166

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“…Zuschriften from highly symmetrical silica/polystyrene (PS) multipods following our already reported procedure, [17] and the initial morphological purity of the sp-, sp 2 and sp 3 -like CAs was 86 %, 69 %a nd 76 %, respectively.T he successful amination of the PS chains remaining within the dimples was checked by z potential measurements and the site-specific tagging with citrate-stabilized gold nanoparticles ( Figure S2). We first investigated the assembly of the sp 3 -like CAs with 100 nm silica nanospheres in a4( in terms of the number of cavities)/4 stoichiometric ratio.F igure 1a shows AX 4 -type CMs,t he colloidal analogues of molecules such as tetrabromomethane (CBr 4 ).…”

Section: Angewandte Chemiementioning

confidence: 99%

Colloidal Molecules from Valence‐Endowed Nanoparticles by Covalent Chemistry

et al. 2018

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We demonstrate asimple method to create avariety of silica-based colloidal molecules through the covalent assembly of site-specifically functionalizedp atchy nanoparticles with complementary nanospheres.Colloidal analogues of BeBr 2 ,BBr 3 and CBr 4 are obtained from sp-, sp 2 -and sp 3 -like particles,while Br 2 Oand NBr 3 analogues can be fabricated by varying the relative amounts of both colloidal precursors.W e also show that it is possible to attach covalently silica nanospheres of various sizes to one central patchy nanoparticle, which leads to the formation of more complex colloidal molecules,i ncluding chiral ones.T he possibility to easily extend the strategy to other colloidal precursors whichc an serve as satellites,for example,ellipsoidal polymer particles or metallic nanoparticles,o pens the way to ar ich variety of new colloidal analogues of atoms whichc ould serve as building blocks of next generation materials.

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“…Colloidal MSNs with ultralarge dimples can be prepared by removing the polystyrene nanoparticles selectively. 313,333 3.4.1.3 Use of Emulsions; Recently, emulsions stabilized by surfactants have been used as templates of MSNs. Although emulsions can be prepared easily by mixing oil and water, such simple emulsions cannot be utilized as templates of mesopores.…”

Section: Soft Template;mentioning

confidence: 99%

Colloidal Mesoporous Silica Nanoparticles

Yamamoto

Kuroda

2016

Bulletin of the Chemical Society of Japan

198

100

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IMMA. His current research interests include mesostructured materials, and several fields of inorganic materials chemistry. Some examples are intercalation chemistry, silicate chemistry, inorganic polymers, sol-gel chemistry, inorganic-organic hybrids, and self-organized materials. AbstractMesoporous silica nanoparticles (MSNs) with colloidal stability have attracted increasing interest because of their important properties, such as high transparency and cell uptake. Colloidal MSNs are comprehensively reviewed from the viewpoints of their preparation, characterization, and applications which include biomedical, catalytic, and optical materials. The following two points have been emphasized. The first point is that this review covers the widest range of introduction and discussion of the preparation and applications of both colloidal and noncolloidal MSNs. The second point is that this account contains a discussion from the viewpoints of both inorganic and colloid chemistries. After the introduction of the historical background of preparation of MSNs, preparative methods of colloidal MSNs and the major factors for the preparation of nanosized and colloidal MSNs are discussed. The methods to control the size, composition, morphology, and pore size of MSNs are also presented. Appropriate methods to obtain MSNs with high colloidal dispersibility are also discussed. Applications of colloidal MSNs are introduced with an emphasis on the colloidal stability. Issues to be addressed for further developments of colloidal MSNs are finally described.

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Synthesis and Site‐Specific Functionalization of Tetravalent, Hexavalent, and Dodecavalent Silica Particles

Cited by 64 publications

References 33 publications

Dendritic Silica Particles with Center-Radial Pore Channels: Promising Platforms for Catalysis and Biomedical Applications

Dendritic Silica Particles with Center-Radial Pore Channels: Promising Platforms for Catalysis and Biomedical Applications

Colloidal Molecules from Valence‐Endowed Nanoparticles by Covalent Chemistry

Colloidal Mesoporous Silica Nanoparticles

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