Tannic acid modified single nanopore with multivalent metal ions recognition and ultra-trace level detection

Zhan, Kan; Li, Ziyi; Chen, Jun; Hou, Yaqi; Zhang, Jian; Sun, Runqing; Bu, Zhenxiang; Wang, Lingyun; Wang, Miao; Chen, Xinyu; Hou, Xu

doi:10.1016/j.nantod.2020.100868

Cited by 109 publications

(98 citation statements)

References 42 publications

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“…Nanoporous membranes are central to sensing, [1][2][3][4][5][6][7][8] water desalination and filtration, [9][10][11][12][13][14] and osmotic power generation. [15][16][17][18][19][20][21][22][23] In most processes, the membrane separates two compartments ion trajectories without affecting the bulk material.…”

Section: Introductionmentioning

confidence: 99%

“…Nanoporous membranes are central to sensing, [ 1–8 ] water desalination and filtration, [ 9–14 ] and osmotic power generation. [ 15–23 ] In most processes, the membrane separates two compartments filled with electrolyte solutions and the transport of molecules or ions through the pores provides the relevant information required for each particular application.…”

Section: Introductionmentioning

confidence: 99%

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Size‐Based Cationic Molecular Sieving through Solid‐State Nanochannels

Ali

Nasir

Froehlich

et al. 2021

Adv Materials Inter

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filled with electrolyte solutions and the transport of molecules or ions through the pores provides the relevant information required for each particular application. This transport is regulated by the channel size and the physico-chemical characteristics of the channel surface. In biological membranes, the high selectivity and fast ion transport achieved are also ascribed to the precise channel size and functional groups distributed along the channel surface. [24-26] A wide range of experimental techniques are available to tune the channel diameter and surface chemistry to enhance ionic selectivity. They include the preparation of hybrid biological/artificial solid-state membranes, [27,28] channel size tuning through electroless [12,29,30] and atomic layer [31-33] depositions, the grafting of polymer brushes on the channel surface, [34-38] and the deposition of an atomically thin graphene layer on the porous membrane. [39,40] Molecular filtration and discrimination have been achieved using different membranes. For example, Martin and co-workers have employed gold-coated nanochannels for the separation of organic molecules and drug enantiomers based on their charge or molecular size. [12,29,30] Stroeve et al. have demonstrated the pH-responsive transport of ions and biomolecules [41] and Savariar et al. the molecular size-, charge-, and hydrophobicity-based discrimination of organic molecules and proteins [14] using modified nanoporous membranes. Recently, polymer membranes with subnanometer pores have been obtained without specific chemical treatments. For example, track-UV techniques have been employed to fabricate subnanopores which exhibited highly selective and ultrafast ion sieving behavior. [42,43] Moreover, subnanometer pores in metal-organic frameworks integrated inside the bullet-shaped nanochannels of a polymer membrane also exhibited high selectivity towards alkali cations while rejecting divalent ions. [44,45] Recently, we have developed a soft-etch technique to obtain nanochannels in polyimide (PI) membranes irradiated with heavy ions. [46] PI exhibits high chemical, electrical, and heat resistance. Therefore, the chemical etching of ion tracks in PI membranes requires harsh conditions. Usually, the ion tracks in PI are etched with a strong inorganic etchant (chlorine in hypochlorite) at high temperature. Contrary to chemical etching, in a soft-etching technique, the ion tracked PI membranes are exposed to an organic solvent which selectively dissolves the damage trails (latent tracks) caused by the energetic The molecular sieving behavior of soft-etched polyimide membranes having negatively charged nanochannels is described experimentally and theoretically using alkali metal-crown ether cationic complexes and alkylammonium cations. To this end, the electrical conduction and current rectification obtained with different alkali electrolyte solutions (LiCl, NaCl, and KCl) and crown ether molecules (12-crown-4, 15-crown-5, and 18-crown-6) are studied. The results suggest that only the [Li(12C4)] + comp...

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Size‐Based Cationic Molecular Sieving through Solid‐State Nanochannels

Ali

Nasir

Froehlich

et al. 2021

Adv Materials Inter

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“…[14][15][16][17] Various energy sources, such as pressure, 18 salinity gradients, [19][20][21] and capillary forces, 22 have been converted successfully into electricity using nanochannels, which also hold great promise for ionic heat-to-electricity conversion. The interface properties of nanochannels could be regulated by constructing unique structures or chemical modification of the inner surface, 23,24 which could enhance the thermal-driven ionic charge separation more effectively.…”

Section: Introductionmentioning

confidence: 99%

A Solar Thermoelectric Nanofluidic Device for Solar Thermal Energy Harvesting

Ding

et al. 2021

CCS Chem

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Harvesting the low-grade (<100°C) solar thermal energy with ionic heat-to-electricity conversion shows great promise but low efficiencies due to the challenges encountered in regulating ionic thermophoretic mobilities. Here, we used nanochannels to regulate thermal-driven ion transport properties and described a solar thermoelectric nanofluidic device (STEND). The localized heat generated by the broadband plasmonic absorption of the gold nanostructure is focused at the orifice of the nanochannel, which builds up a large temperature gradient inside the nanochannel. The following thermal-driven ionic charge separation was enhanced by the ion-selective nanochannel, resulting in large thermal membrane potential (TMP). The Seebeck coefficient and the TMP reached 0.76 mV/K and 23 mV, respectively, in an aqueous KCl solution. The performance of the device was improved further by the enhancement of electrostatic interaction between the ions and the nanochannnels, the increase of the membrane thermal resistance, and the decoupling of the ion concentration polarization (ICP) regions. This study supports the understanding of thermal-driven ion transport at nanoscale and provides a new strategy for harvesting solar thermal energy.

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“…The application of biological materials is limited due to their low strength and harsh requirements for external working conditions [16]. Inorganic materials, which have the advantages of high strength, stable structure and physicochemical properties, play an important role in the construction of nanochannels [17][18][19]. For example, anodic alumina membrane (AAO) has a pore density up to 10 9 cm −2 , and its shape and size are relatively controllable.…”

Section: Introductionmentioning

confidence: 99%

Bioinspired nanochannels based on polymeric membranes

Wang

et al. 2021

Sci. China Mater.

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Bio-nanochannels in living organisms participate in the physiological activities by selectively transporting ions through cell membranes. The structure and function of biological ion channels inspire the development of artificial ion nanochannels with practical applications. The bioinspired nanochannels based on polymer materials present good mechanical stability, high-performance ion transport and designability, which have attracted much attention. In this review, we mainly focus on the fabrication and application of polymer-based biomimetic nanochannels especially in environmentally responsive biosensor and energy conversion. We firstly introduce the basic understanding of nanochannels in ion regulation and osmotic energy conversion. Then, we discuss the fabrication methods of polymer-based nanochannels and highlight their advantages compared with other materials. The practical applications of polymer-based biomimetic nanochannels, especially in energy conversion and environmentally responsive biosensor, are detailedly discussed. Finally, we summarize the unsolved problems in bioinspired nanochannels and overview the further developing direction in this field.

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Tannic acid modified single nanopore with multivalent metal ions recognition and ultra-trace level detection

Cited by 109 publications

References 42 publications

Size‐Based Cationic Molecular Sieving through Solid‐State Nanochannels

Size‐Based Cationic Molecular Sieving through Solid‐State Nanochannels

A Solar Thermoelectric Nanofluidic Device for Solar Thermal Energy Harvesting

Bioinspired nanochannels based on polymeric membranes

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