Sequential coating of nanopores with charged polymers: A general approach for controlling pore properties of self-assembled block copolymer membranes

Baettig, Julia; Oh, Junki; Bang, Joona; Khan, Anzar

doi:10.1007/s13233-017-5142-5

Cited by 5 publications

(4 citation statements)

References 12 publications

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“…The micro-structured porous films prepared herein may constitute new materials for potential application in biomedicine; for example as support for cell growth with biological purposes. Additionally, the hydrophilic domains composed by carboxylic acid groups should serve as 3D-scaffolds for further chemical modifications which would hold further potential within such fields as catalysis and gas/chemical sensors (Phillip et al, 2010; Nunes et al, 2011; Hilke et al, 2013; Baettig et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Porous Surface Films With Tunable Morphologies and Hydrophobic Properties Based on Block Copolymer Under the Effects of Thermal Annealing

et al. 2019

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The fabrication of porous-structured polymer films with patterned surface structures has recently attracted increased interest within the material science field. In this work, a series of microstructure scale patterned polymer films were obtained via breath figure methods (BF) with hydrophobic surface films based on self-assembled diblock copolymers by atom-transfer radical polymerization (ATRP). The surface characteristics and morphological properties, pore size, roughness, thickness, and wettability of the block copolymer films was studied in response to variation of the hydrophilic co-monomer structures. A significant improvement of the quality and order of the hydrophobic films was observed in response to thermal annealing and a consequent optimization of the assembly process.

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Section: Introductionmentioning

confidence: 99%

Porous Surface Films With Tunable Morphologies and Hydrophobic Properties Based on Block Copolymer Under the Effects of Thermal Annealing

et al. 2019

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“…Alternatively, utilization of electrolyte materials as the gate dielectric for MoS 2 and other 2D materials has also been attempted. − The electric double layer (EDL) formed in an electrolyte is capable of inducing accumulation of an ultrahigh charge density in the contacting 2D materials at low operation voltages. For example, ionic-liquid-gated MoS 2 devices provided a significant carrier mobility of over 40–60 cm 2 V –1 s –1 .…”

Section: Introductionmentioning

confidence: 99%

Proton-Conductor-Gated MoS₂ Transistors with Room Temperature Electron Mobility of >100 cm² V^–1 s^–1

et al. 2018

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Room temperature electron mobility of >100 cm2 V–1 s–1 is achieved for a few-layer MoS2 transistor by use of a polyanionic proton conductor as the top-gate dielectric of the device. The use of a proton conductor that inherently exhibits a cationic transport number close to 1 yields unipolar electron transport in the MoS2 channel. The high mobility value is attributed to the effective formation of an electric double layer by the proton conductor, which facilitates electron injection into the MoS2 channel, and to the effective screening of the charged impurities in the vicinity of the device channel. Through careful temperature-dependent transistor and capacitor measurements, we also confirm quenching of the phonon modes in the proton-conductor-gated MoS2 channel, which should also contribute to the achieved high mobility. These devices are then used to assemble a simple resistive-load inverter logic circuit, which can be switched at high frequencies above 1 kHz.

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“…Baettig et al [103] . used a LBL deposition to modify the nanopores of polystyrene‐ b ‐poly(4‐vinyl pyridine) (PS‐ b ‐P4VP) membrane (pore sizes sub‐50 nm) to alter the pore properties, including pore size and surface chemistry (Figure 6H).…”

Section: Modification Of Nanopore In Organic Membranementioning

confidence: 99%

“…Baettig et al [103] used a LBL deposition to modify the nanopores of polystyrene-b-poly(4-vinyl pyridine) (PS-b-P4VP) membrane (pore sizes sub-50 nm) to alter the pore properties, including pore size and surface chemistry (Figure 6H). This method is general and versatile, which could potentially be applied for the functionality of nanopore.…”

Section: Ps/pes Membranementioning

confidence: 99%

Recent Advances in the Modification and Characterization of Solid‐State Nanopores

Lü

Cao

Qing

2022

Chemistry An Asian Journal

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Nanopores, due to their advantages of being modifiable, controllability and sensitivity, have made a splash in recent years in the fields of biomolecular sequencing, small molecule detection, salt differential power generation, and biomimetic ion channels. In these applications, the role of chemical or biological modification is indispensable. Compared with small molecules, the modification of polymers is more difficult and the methods are more diverse. Choosing an appropriate modification method directly determines the success or failure of a research project; therefore, it is necessary to summarize polymer modification methods toward nanopores. In addition, it is also important to provide clear and convincing evidence that the nanopore modification is successful, the corresponding characterization methods are also indispensable. Therefore, this review will summarize the methods of polymer modification of nanopores and efficient characterization methods. We hope that this review will provide some reference value for like-minded researchers.

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Sequential coating of nanopores with charged polymers: A general approach for controlling pore properties of self-assembled block copolymer membranes

Cited by 5 publications

References 12 publications

Porous Surface Films With Tunable Morphologies and Hydrophobic Properties Based on Block Copolymer Under the Effects of Thermal Annealing

Porous Surface Films With Tunable Morphologies and Hydrophobic Properties Based on Block Copolymer Under the Effects of Thermal Annealing

Proton-Conductor-Gated MoS₂ Transistors with Room Temperature Electron Mobility of >100 cm² V^–1 s^–1

Recent Advances in the Modification and Characterization of Solid‐State Nanopores

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Sequential coating of nanopores with charged polymers: A general approach for controlling pore properties of self-assembled block copolymer membranes

Cited by 5 publications

References 12 publications

Porous Surface Films With Tunable Morphologies and Hydrophobic Properties Based on Block Copolymer Under the Effects of Thermal Annealing

Porous Surface Films With Tunable Morphologies and Hydrophobic Properties Based on Block Copolymer Under the Effects of Thermal Annealing

Proton-Conductor-Gated MoS2 Transistors with Room Temperature Electron Mobility of >100 cm2 V–1 s–1

Recent Advances in the Modification and Characterization of Solid‐State Nanopores

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Proton-Conductor-Gated MoS₂ Transistors with Room Temperature Electron Mobility of >100 cm² V^–1 s^–1