Molecular transport in thiacalix[4]arene-modified nanoporous colloidal films

Mollard, Alexis; Ибрагимова, Д А; Антипин, И. С.; Коновалов, А. И.; Stoikov, Ivan I.; Zharov, Ilya

doi:10.1016/j.micromeso.2010.01.018

Cited by 15 publications

(14 citation statements)

References 41 publications

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“…Colloidal films modified with 1 S showed a reversed selectivity of 0.6. These results are consistent with a surface‐facilitated transport mechanism,41 where chiral selectors serve as fixed‐site carriers that allow enantiomers to hop from one selector to the next, and thus, cross the film. Enantiomers interact with the chiral selector moieties to a different extent, which leads to the enantioselective permeability.…”

Section: Introductionsupporting

confidence: 82%

Silica Colloidal Membranes with Enantioselective Permeability

Leon

Abelow

Cichelli

et al. 2014

Israel Journal of Chemistry

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Dedicated to the memory of Professor Michael Bendikov: a brilliant scientist, a great friend, and a courageous man ties in the range of 1.2-1.8, which were not significantly affected by the structure of the surface-immobilized chiral electors. This selectivity is on par with most reported polymer-based solid membranes and bulk liquid membranes. The enantioselectivity results from the surface-facilitated mechanism of transport of enantiomers through the mesopores.

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Section: Introductionsupporting

confidence: 82%

Silica Colloidal Membranes with Enantioselective Permeability

Leon

Abelow

Cichelli

et al. 2014

Israel Journal of Chemistry

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“…Previously, we modified thin colloidal crystalline films with chargeable moieties, such as amines [29,30] and sulthonic acid groups, [31,32] as well as with a variety of neutral molecules, such as chiral selector moieties, [33,34] thiacalixarenes, [35] and spiropyran molecules. [36] In these studies molecular transport has been successfully controlled either by electrostatics or by molecular recognition.…”

Section: Introductionmentioning

confidence: 99%

pH‐Responsive Nanoporous Silica Colloidal Membranes

Schepelina

Poth

Zharov

2010

Adv Funct Materials

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Free‐standing colloidal membranes (nanofrits) with varied thickness and nanopore size are fabricated and modified with pH‐responsive poly(2‐(dimethylamino)ethyl methacrylate) brushes. The polymer‐modified nanofrits demonstrate excellent gating behavior for molecular diffusion: in the presence of acid, the diffusion rate of positively charged species significantly decreases. Increasing the polymer length and membrane thickness and decreasing the nanopore size leads to the complete acid‐controlled gating of the membranes.

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“…For example, amine-activation of silica can be performed according to the procedure described in the literature [28]. A very similar procedure have been applied in surface activation of magnetite nanoparticles (MNP) with APTES before immobilization of calix [4]arene [29].…”

Section: Amide-bond Formation Methodsmentioning

confidence: 99%

“…Mollard et al [28] studied the transport of two redox-active species, ferrocene dimethanol and iron tris(bipyridyl) hexafluorophosphate, through the films prepared by immobilization of thiacalix [4]arene to colloidal films assembled from 200 nm silica sphere (Fig. 7).…”

Section: Other Types Of Calixarene-derived Materials and Some Interesmentioning

confidence: 99%

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Calixarene-engineered surfaces and separation science

Gezici

Bayrakcı

2015

J Incl Phenom Macrocycl Chem

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After their discovery, calixarenes have attracted the attention of many researchers from various disciplines. This group of supramolecules has an increasing popularity and this is most probably related with the flexibility of calixarene chemistry. Owing to their multifunctional character and stability, calixarenes became important precursors in separation science to derive new-type of sorbents or stationary phases. Immobilization of calixarenes to a suitable solid support (e.g. silica, synthetic polymers, magnetite nanoparticles, etc.) is a very popular concept being used for this purpose, and various immobilization methodologies have been proposed in the literature. In the present work, some state-of-the-art researches and developments published in the past are reviewed in a collective manner, and thus fundamentals of calixareneimmobilization and the application of the obtained materials in sorption and high performance liquid chromatography are represented.

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Molecular transport in thiacalix[4]arene-modified nanoporous colloidal films

Cited by 15 publications

References 41 publications

Silica Colloidal Membranes with Enantioselective Permeability

Silica Colloidal Membranes with Enantioselective Permeability

pH‐Responsive Nanoporous Silica Colloidal Membranes

Calixarene-engineered surfaces and separation science

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