Related Experiment Video
Updated: Mar 12, 2026

Microfluidic Pneumatic Cages: A Novel Approach for In-chip Crystal Trapping, Manipulation and Controlled Chemical Treatment
Published on: July 12, 2016
Blockage-induced condensation controlled by a local reaction.
Emilio N M Cirillo1, Matteo Colangeli2, Adrian Muntean3
1Dipartimento di Scienze di Base e Applicate per l'Ingegneria, Sapienza Università di Roma, via A. Scarpa 16, I-00161, Rome, Italy.
Researchers studied stationary zero range models and found that a local blockage can induce particle condensation. Introducing feedback on hopping rates controls the condensed phase particle fraction, revealing two nonanalyticity points.
Area of Science:
- Statistical Mechanics
- Condensed Matter Physics
Background:
- Stationary zero range models are used to study particle systems on lattices.
- Understanding condensation phenomena is crucial in statistical physics.
Purpose of the Study:
- To investigate condensation in stationary zero range models.
- To explore the effect of local blockages and feedback mechanisms on particle distribution.
- To analyze the resulting current-blockage relationships.
Main Methods:
- Analysis of stationary zero range models.
- Introduction of a local blockage on the lattice.
- Implementation of local feedback on hopping rates.
- Characterization of the condensed phase particle fraction.
Main Results:
- A local blockage can induce particle condensation.
- Local feedback on hopping rates allows control over the condensed phase particle fraction.
- The current versus blockage parameter curve exhibits two nonanalyticity points.
Conclusions:
- Local feedback is an effective mechanism for controlling condensation in these models.
- The observed nonanalyticity points signify critical transitions in the system's behavior.
Related Concept Videos
Regioselectivity of Electrophilic Additions to Alkenes: Markovnikov's Rule
The hydrohalogenation of an unsymmetrical alkene can yield two haloalkane products, depending on which vinylic carbon takes up the halogen. However, one product usually predominates, where hydrogen adds to the vinylic carbon bearing the...
Ketones with Nonenolizable Aromatic Aldehydes: Claisen–Schmidt Condensation
As the self-condensation of ketones is generally not favored in basic conditions, the self-condensed products do not form in the reaction between ketones and benzaldehyde. The general reaction of Claisen–Schmidt...
Aldol Condensation vs Claisen Condensation
Esters to β-Ketoesters: Claisen Condensation Mechanism
Electrophilic Addition of HX to 1,3-Butadiene: Thermodynamic vs Kinetic Control
Reaction Mechanisms
For instance, the decomposition of ozone appears to follow a mechanism with two steps:

