Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Vaporization01:18

Vaporization

The physical form of a substance changes by changing its temperature. For example, raising the temperature of a liquid causes the liquid to vaporize (convert into vapor). The process is called vaporization—a surface phenomenon. For vaporization to occur, kinetic energy must be greater than the intermolecular forces that keep molecules bonded. The amount of energy needed to vaporize a quantity of liquid at a given pressure and a constant temperature is called the heat of vaporization. When...
Volatilization01:10

Volatilization

Volatilization gravimetry is an analytical technique that measures the mass lost due to the volatilization of the substance. This technique is used to estimate the amount of volatile material in a sample. To perform this method, heat a known amount of the sample to a high temperature in a crucible or other suitable vessel. The volatile substance in the sample evaporates, and the vapor is completely expelled from the crucible either by heating the sample or bubbling a stream of inert gas through...
Distillation: Vapor–Liquid Equilibria01:01

Distillation: Vapor–Liquid Equilibria

Distillation is a separation technique that takes advantage of the boiling point properties of disparate elements in a mixture. To perform distillation, we begin by heating a miscible mixture of two liquids with a significant difference in boiling points (at least 20°C). As the solution heats up and reaches the bubble point of the more volatile component, some molecules of the more volatile component transition into the gas phase and travel upward into the condenser, which is a glass tube with...
Phase Transitions: Vaporization and Condensation02:39

Phase Transitions: Vaporization and Condensation

The physical form of a substance changes on changing its temperature. For example, raising the temperature of a liquid causes the liquid to vaporize (convert into vapor). The process is called vaporization—a surface phenomenon. Vaporization occurs when the thermal motion of the molecules overcome the intermolecular forces, and the molecules (at the surface) escape into the gaseous state. When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules...
Microbial Leaching01:27

Microbial Leaching

Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...
Microbial Wastewater Treatment01:30

Microbial Wastewater Treatment

Microbial communities in aquatic ecosystems play a key role in the natural breakdown of contaminants introduced through domestic and industrial effluents. Acting as biological catalysts, these microbes change and mineralize a wide range of organic and inorganic pollutants under different redox conditions.In oxygen-rich surface waters, aerobic heterotrophs lead organic matter breakdown, using oxygen as the terminal electron acceptor to efficiently oxidize substrates to carbon dioxide and water.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Capillary flow-driven paper-based microfluidic sensor for NDMA detection in water.

Lab on a chip·2026
Same author

Integrated Magnetophoretic-Electrochemical platforms for portable detection of HER2 in breast cancer diagnosis.

Biosensors & bioelectronics·2026
Same author

Smartphone-Based Peptide Nucleic Acid (PNA) Probe-Assisted Potentiometric Biosensor for Point-of-Care Testing of SARS-CoV-2 Nucleic Acid.

Analytical chemistry·2026
Same author

Detection of Aerosolized Protein Using a Condensation Growth Tube Coupled with an Electrochemical Immunoassay on Screen-Printed Carbon Electrodes.

Analytical chemistry·2026
Same author

Capillary-Driven Duplex Microfluidic Device Enabling Simultaneous Electrochemical Immunoassays for Detecting SARS-CoV-2 and Respiratory Syncytial Virus.

ACS sensors·2026
Same author

Sponge-Based Flow Control in Laminate Capillary-Driven Electrochemical Microfluidic Devices for Viscous Sample Analysis.

Analytical chemistry·2026
Same journal

Microfluidic rare cell analysis beyond counting: workflow design from enrichment to multi-omics.

Lab on a chip·2026
Same journal

A sperm racetrack to separate sperm by swim speed.

Lab on a chip·2026
Same journal

Controlled encapsulation and droplet size prediction in two-step microfluidic double emulsions.

Lab on a chip·2026
Same journal

A particulate blood-mimicking fluid with physiological biconcave geometry for microscale hemorheology.

Lab on a chip·2026
Same journal

Multicellular sensor arrays fabricated by capillary stamping for pattern-based odor discrimination.

Lab on a chip·2026
Same journal

A real-time microfluidic surveillance system for multiplex detection of heavy metal contamination in wastewater.

Lab on a chip·2026
See all related articles

Related Experiment Video

Updated: Jun 22, 2026

A High Performance Impedance-based Platform for Evaporation Rate Detection
06:39

A High Performance Impedance-based Platform for Evaporation Rate Detection

Published on: October 17, 2016

Evaporation from microreservoirs.

N Scott Lynn1, Charles S Henry, David S Dandy

  • 1Department of Chemical & Biological Engineering, Colorado State University, Fort Collins, Colorado 80523, USA.

Lab on a Chip
|June 5, 2009
PubMed
Summary
This summary is machine-generated.

Evaporation in lab-on-a-chip devices is critical. This study presents a two-step method to predict evaporation rates from reservoirs, enabling better device design by controlling reservoir geometry.

More Related Videos

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface
13:27

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface

Published on: June 8, 2015

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation
08:27

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation

Published on: August 28, 2017

Related Experiment Videos

Last Updated: Jun 22, 2026

A High Performance Impedance-based Platform for Evaporation Rate Detection
06:39

A High Performance Impedance-based Platform for Evaporation Rate Detection

Published on: October 17, 2016

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface
13:27

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface

Published on: June 8, 2015

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation
08:27

Aqueous Droplets Used as Enzymatic Microreactors and Their Electromagnetic Actuation

Published on: August 28, 2017

Area of Science:

  • Microfluidics and Lab-on-a-Chip Technology
  • Fluid Dynamics and Transport Phenomena
  • Materials Science (Polymer Microfabrication)

Background:

  • Lab-on-a-chip (LOC) devices with open air/liquid interfaces are susceptible to significant evaporation due to high surface area to volume ratios.
  • Evaporation from fluid reservoirs in LOC devices can lead to premature reservoir dry-out and device failure, impacting experimental reproducibility.
  • Predicting evaporation rates is challenging as the air/liquid interface geometry changes dynamically with decreasing liquid volume.

Purpose of the Study:

  • To develop and validate a predictive method for calculating time-dependent evaporation rates in microfluidic reservoirs.
  • To investigate the influence of reservoir geometry on evaporation rates and liquid persistence.
  • To provide a design framework for microfluidic reservoirs that mitigate uncontrolled evaporation.

Main Methods:

  • A two-step approach combining geometric analysis of the air/liquid meniscus shape with computational fluid dynamics (CFD) simulations.
  • Determination of meniscus shape based on liquid volume within the reservoir.
  • CFD simulations to calculate instantaneous evaporation rates for the predicted meniscus geometries.

Main Results:

  • Evaporation rates are strongly dependent on reservoir geometry, being enhanced in expanding geometries and suppressed in contracting ones.
  • The model accurately predicts the moving contact line position over time without adjustable parameters.
  • The predicted liquid persistence time in poly(dimethylsiloxane) reservoirs was within 0.5 minutes of experimental observation.

Conclusions:

  • The presented two-step method accurately predicts evaporation rates and liquid depletion in microfluidic reservoirs.
  • Reservoir geometry offers a controllable parameter to manage evaporation rates in lab-on-a-chip devices.
  • This approach facilitates the design of robust LOC devices with predictable fluid behavior without external evaporation control.