1D Nanoconfined Ordered‐Assembly Reaction

Liu, Shijie; Zhang, Xiqi; Jiang, Lei

doi:10.1002/admi.201900104

Cited by 28 publications

(25 citation statements)

References 63 publications

(141 reference statements)

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“…Pyotr Kapitsa and John F. Allen were the first to report superfluidity in 4 He below 2.17 K in 1938. 9,10 The characteristic properties of a superfluid are zero viscosity and no loss of kinetic energy.…”

Section: Superfluid: From Atoms To Molecules and Ionsmentioning

confidence: 99%

“…Superfluidity often occurs along with Bose-Einstein condensation. The movement of the 4 He superfluid can be considered an atomic collective motion. 11 In channels with inner diameters of < 100 nm, the velocity of the 4 He superfluid is completely independent of pressure at all temperatures (Fig.…”

Section: Superfluid: From Atoms To Molecules and Ionsmentioning

confidence: 99%

“…13 It has also been demonstrated that the superfluid onset temperature increases as the diameter of the channel decreases. 14,15 Another peculiar phenomenon is observed when liquid 4 He is added to a small bowl below 2.17 K: a thin invisible film creeps up the inside wall of the bowl and down on the outside. A drop forms from this film and falls off outside the bowl until it is empty, demonstrating that the film behaves like a superfluid confined in a nanochannel (Fig.…”

Section: Superfluid: From Atoms To Molecules and Ionsmentioning

confidence: 99%

“…1b). The thickness of the liquid 4 He film was measured as ~20 nm by an optical method developed years after the discovery of He superfluid. 16 The sufficient and necessary condition for the formation of an ordered structure of particles is the attraction-repulsion balance, i.e., the lowest point of potential well (or potential energy).…”

Section: Superfluid: From Atoms To Molecules and Ionsmentioning

confidence: 99%

“…2,3 QSF reactions make the reactant molecules orderly in a nanochannel to satisfy symmetrymatching principles, and hence, these reactions can afford high flux and 100% selectivity with low reaction activation energy. 4,5 Biophoton-driven DNA replication can be carried out via yield oscillations modulated by gold nanoparticle distance. 6 It has been proposed that the transmission of nerve signals can be explained by ionic QSF, which are enthalpy-driven confined fluids.…”

Section: Introductionmentioning

confidence: 99%

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Driving Force of Molecular/Ionic Superfluid Formation

2021

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Ordered-and high-flux flow of molecules and ions in biological channels is considered as quantum-confined superfluid, which is highly important in chemical reaction and bioinformation transmission. However, the driving forces for these ordered arrangements of molecules and ions in the confined space have not been discussed.Here, we demonstrate that the driving force of molecular/ionic superfluid formation is the attraction-repulsion balance of particles under the effect of interfacial confinement, as well as the space-confinement effect enough to reduce the degrees of freedom of the particles and then greatly limit the disorder of their movement. The competition of attractive potential energy (E) with the disorder caused by thermal noise (k B T) results in the phase transition temperature. When |E| > k B T, an ordered structure of the particles can be formed. A superfluid of 4 He atoms is formed below 2.17 K. Molecules or ions can achieve a superfluid at a higher phase transition temperature (near body temperature) under a certain confined distance, e.g., about twice van der Waals equilibrium distance (2d 0 ) for molecules and twice Debye length (2λ D ) for ions and ion-molecules. Owning to the unique characteristic of ultralow resistance for particles transport, molecular/ionic superfluid will have a significant impact in areas such as energy transfer, storage and conversion.

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Section: Superfluid: From Atoms To Molecules and Ionsmentioning

confidence: 99%

Section: Superfluid: From Atoms To Molecules and Ionsmentioning

confidence: 99%

Section: Superfluid: From Atoms To Molecules and Ionsmentioning

confidence: 99%

Section: Superfluid: From Atoms To Molecules and Ionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Driving Force of Molecular/Ionic Superfluid Formation

2021

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Engineering Smart Nanofluidic Systems for Artificial Ion Channels and Ion Pumps: From Single‐Pore to Multichannel Membranes

et al. 2019

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Biological ion channels and ion pumps with intricate ion transport functions widely exist in living organisms and play irreplaceable roles in almost all physiological functions. Nanofluidics provides exciting opportunities to mimic these working processes, which not only helps understand ion transport in biological systems but also paves the way for the applications of artificial devices in many valuable areas. Recent progress in the engineering of smart nanofluidic systems for artificial ion channels and ion pumps is summarized. The artificial systems range from chemically and structurally diverse lipid‐membrane‐based nanopores to robust and scalable solid‐state nanopores. A generic strategy of gate location design is proposed. The single‐pore‐based platform concept can be rationally extended into multichannel membrane systems and shows unprecedented potential in many application areas, such as single‐molecule analysis, smart mass delivery, and energy conversion. Finally, some present underpinning issues that need to be addressed are discussed.

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Efficient Flow Synthesis of Aspirin within 2D Sub‐Nanoconfined Laminar Annealed Graphene Oxide Membranes

Li,

Pang,

Zhang

et al. 2023

Advanced Materials

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The aim of this work is to develop an environmentally friendly, safe, and simple route for realizing efficient preparation of aspirin. Here, inspired by enzyme synthesis in vivo, the aspirin synthesis has been realized by sub‐nanoconfined esterification with directional flow and ≈100% conversion in an unprecedented reaction time of <6.36 s at 23 °C. Such flow esterification reaction is catalyzed by thermally transformed graphene oxide (GO) membranes with tailored physicochemical properties, which can be obtained simply through a mild annealing method. A possible mechanism is revealed by density functional theory calculation, indicating that the synergistic effect of spatial confinement and surface electronic structure can significantly improve the catalytic performance. By restricting reactants within 2D sub‐nano space created by GO‐based laminar flow‐reactors, the present strategy provides a new route to achieve rapid flow synthesis of aspirin with nearly complete conversion.

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1D Nanoconfined Ordered‐Assembly Reaction

Cited by 28 publications

References 63 publications

Driving Force of Molecular/Ionic Superfluid Formation

Driving Force of Molecular/Ionic Superfluid Formation

Engineering Smart Nanofluidic Systems for Artificial Ion Channels and Ion Pumps: From Single‐Pore to Multichannel Membranes

Efficient Flow Synthesis of Aspirin within 2D Sub‐Nanoconfined Laminar Annealed Graphene Oxide Membranes

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