Fabrication of a mercaptoacetic acid pillar[5]arene assembled nanochannel: a biomimetic gate for mercury poisoning

Zhang, Fan; Ma, Junkai; Sun, Yue; Boussouar, Imene; Tian, Demei; Li, Haibing; Jiang, Lei

doi:10.1039/c5sc04726a

Cited by 100 publications

(61 citation statements)

References 46 publications

(21 reference statements)

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“…Consequently, they can be used to mimic complicated biological ion transport processes, such as the selective and controlled removal of poisoning mercury ions. [45] The mercaptoacetic acid-pillar [5]arene, 9 (Figure 8) was synthesized by Li and co-workers [45] to fabricate a tuneable mercury ion-gated nanochannel device. The mercury ion binding to thiol-containing molecules will remove 9 from the host-guest complex on the surface of the nanochannel and change the charge or the wettability.…”

Section: Stimuli-response Channels Based On the Host-guest Propertiesmentioning

confidence: 99%

Pillar[n]arenes for Construction of Artificial Transmembrane Channels

Feng

Sun

Barboiu

2018

Israel Journal of Chemistry

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Pillar[n]arenes have been intensively used during the last decade in supramolecular chemistry as host systems for guest recognition and self-assembly, toward functional materials and devices. They present electron-rich and tuneable size cavities, as well as reactive rims for further functionalization. Their unique pillar shape promotes pillar[n] arenes as molecular analogues of carbon nanotubes. For this reasons pillar[n]arenes have been embedded into membranes and used to construct artificial water, proton, ions and molecular channels. This review discusses the incipient developments of the first artificial channels based on pillar[n] arenes. We include also systems that integrate pillar[n]arenes as synthetic elements for the construction of selective pores of nanodevices for ion rectification.

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Section: Stimuli-response Channels Based On the Host-guest Propertiesmentioning

confidence: 99%

Pillar[n]arenes for Construction of Artificial Transmembrane Channels

Feng

Sun

Barboiu

2018

Israel Journal of Chemistry

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“…This unorthodox ligand could be conveniently converted from oxidation of hydroquinone, and is relatively inert in many catalytic reaction types. Pillar[n]arenes (PA[n]s) are a new type of macrocyclic host molecules, [17] which have been used for variable applications, including drug delivery, [18][19][20][21] gas adsorption, [22,23] chemical separation, [24,25] fluorescence sensing, [26] ion channel [27,28] and catalysis. [29] PA[n] is of great importance for the construction of porous materials due to its intrinsic cavity.…”

Section: Introductionmentioning

confidence: 99%

Pillarquinone‐Based Porous Polymer for a Highly‐Efficient Heterogeneous Organometallic Catalysis

et al. 2019

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Pillar[5]quinone (PQ[5])‐based porous polymer has been prepared by crosslinking and oxidating pillar[5]arene (PA[5]). Quinone was used as an unorthodox ligand to load palladium‐catalyst with high loading ratio (up to 12.0 wt %). Catalyst was well dispersed on solid support in the form of Pd2+‐specie. Pd‐loaded PQ[5]‐based heterogeneous catalyst was highly efficient for Suzuki‐coupling reactions (22‐ to 1485‐fold higher than Pd/C based on turnover frequency). It was superior compared to other existing heterogeneous catalysts for selective catalytic reaction. This heterogeneous catalyst had good thermo‐stability, and could be reused and recycled.

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“…[5,6] Learning from nature,artificial biomimetic nanochannels have attracted great interest because of their greater flexibility in terms of shape and size,s uperior robustness,a nd surface properties that can be tuned depending on the desired function. [26] Thefunction-alized nanochannel is thus the amplifier of the host-guest system. [20][21][22][23][24][25] Recently,we exploited an ew strategy of introducing ahost-guest systems into the internal walls of nanochannels to achieve biomimetic mercury responsive nanochannels,ashost-guest systems have good reversible and selective characteristics.…”

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confidence: 99%

Temperature‐Sensitive Artificial Channels through Pillar[5]arene‐based Host–Guest Interactions

et al. 2017

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In living systems, temperature-sensitive ion channels play a vital role in numerous cellular processes and can be controlled by biological ion channels in response to specific temperature stimuli. Facile pillar[5]arene-based host-guest interactions are introduced into a nanochannel pattern for constructing a temperature-sensitive artificial channel. Ion transport was switched from cations to anions by controlling the extent of the host bound to the guest with temperature stimuli. This efect is mainly due to the changing of the inner surface charge and wettability of the nanochannel during the process. This study paves a new way for better understanding the mechanism of temperature-sensitive properties and shows great promise for biomedical research.

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Fabrication of a mercaptoacetic acid pillar[5]arene assembled nanochannel: a biomimetic gate for mercury poisoning

Abstract: Herein, based on biomimetic strategies, a tunable mercury(ii) ion-gate modulated by mercaptoacetic acid-pillar[5]arene (MAP5) is reported.

Cited by 100 publications

References 46 publications

Pillar[n]arenes for Construction of Artificial Transmembrane Channels

Pillar[n]arenes for Construction of Artificial Transmembrane Channels

Pillarquinone‐Based Porous Polymer for a Highly‐Efficient Heterogeneous Organometallic Catalysis

Temperature‐Sensitive Artificial Channels through Pillar[5]arene‐based Host–Guest Interactions

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