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Related Experiment Video

Updated: Nov 2, 2025

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

Quantum-confined superfluid reactions.

Yuwei Hao¹, Shuai Pang², Xiqi Zhang²

¹Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University Beijing 100191 P. R. China jianglei@iccas.ac.cn.

Chemical Science

|June 7, 2021

Summary

Quantum-confined superfluid (QSF) reactions mimic biological processes for ultrafast molecular and ion transport. Artificial QSF systems achieve high flux, selectivity, and low energy reactions, revolutionizing chemical engineering.

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An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

Published on: December 4, 2017

Area of Science:

Physical Chemistry
Chemical Engineering
Nanotechnology

Background:

Superfluidity, initially observed in helium, involves frictionless flow.
Biological channels facilitate ultrafast transport, inspiring artificial systems.
Quantum-confined superfluid (QSF) describes transport phenomena in confined biological channels.

Purpose of the Study:

Introduce the concept of QSF reactions in artificial systems.
Demonstrate the potential for high flux, 100% selectivity, and low activation energy in artificial QSF reactions.
Explore applications in molecular and ion transport and catalysis.

Main Methods:

Designing artificial channels with dimensions matching van der Waals equilibrium distance for molecules or Debye length for ions.
Orderly arranging reactants within channels to satisfy symmetry-matching principles.
Summarizing existing QSF-like molecular reactions and discussing QSF ion redox reactions.

Main Results:

Artificial systems can achieve QSF reactions with high flux, 100% selectivity, and low activation energy at ambient conditions.
Several types of QSF-like molecular reactions (polymerizations, quasi-superfluid, superfluid-based) are identified.
QSF ion redox reactions are discussed as a potential application.

Conclusions:

Artificial QSF reactions offer a pathway to unprecedented reaction efficiencies.
Future chemical engineering may utilize multi-step QSF reactions in tubular reactors with nanochannel membranes.
This approach promises revolutionary advancements in chemistry and chemical engineering, emphasizing high flux, selectivity, and low energy consumption.