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

The Anchoring-and-Adjustment Heuristic01:25

The Anchoring-and-Adjustment Heuristic

7.8K
In order to make good decisions, we use our knowledge and our reasoning. Often, this knowledge and reasoning is sound and solid. However, sometimes, we are swayed by biases or by others manipulating a situation. For example, let’s say you and three friends wanted to rent a house and had a combined target budget of $1,600. The realtor shows you only very run-down houses for $1,600 and then shows you a very nice house for $2,000. Might you ask each person to pay more in rent to get the...
7.8K
Adjusting a Traverse01:12

Adjusting a Traverse

377
In the site survey of a four-sided traverse, internal angles are essential to ensure geometric accuracy. The survey revealed that the sum of the measured internal angles was 359 degrees and 48 minutes, which is 12 minutes less than the expected 360 degrees. This discrepancy signals an error likely arising from measurement inaccuracies during the fieldwork.To rectify this error, the adjustment process involved distributing the 12-minute shortfall equally across the four internal angles. By...
377
Concentration Cells02:41

Concentration Cells

25.8K
A concentration cell is a type of a  voltaic cell constructed by connecting two almost identical half-cells, both based on the same half-reaction and using the same electrode, differing only in the concentration of one redox species. A concentration cell's potential, therefore, is determined only by the concentration difference of the particular redox species.
Consider the following voltaic cell:
25.8K
Renal Failure: Dose Adjustments01:11

Renal Failure: Dose Adjustments

459
In patients with renal impairment, drugs undergo significant changes in their pharmacokinetics, which require dosage adjustments to ensure safe and effective therapy.
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
459
Solution Concentration and Dilution02:59

Solution Concentration and Dilution

130.8K
The relative amount of a given solution component is known as its concentration. Often, though not always, a solution contains one component with a concentration that is significantly greater than that of all other components. This component is called the solvent and may be viewed as the medium in which the other components are dispersed or dissolved. Solutions in which water is the solvent are, of course, very common on our planet. A solution in which water is the solvent is called an aqueous...
130.8K
Stress Concentrations01:13

Stress Concentrations

627
The concept of stress concentration is crucial for understanding how materials respond under bending stresses, particularly when there are irregularities or discontinuities in the material's geometry. Normally, stress in a symmetric member subjected to pure bending is assumed to be uniformly distributed across the entire cross-section. However, this assumption does not hold when there are variations in the cross-sectional geometry or the presence of notches and holes.
The stress...
627

You might also read

Related Articles

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

Sort by
Same author

Impact of biguanide therapy on hepatic <sup>18</sup>F-fluorodeoxyglucose-positron emission tomography quantitative parameters in patients with diabetes: a dynamic positron emission tomography study.

Annals of nuclear medicine·2026
Same author

On-Chip AC Electrothermal Pump for Pulsatile Perfusion.

Micromachines·2026
Same author

Florzolotau (18F) retention is linked to neuropsychological performance in tauopathy.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
Same author

Evaluation and Treatment Adherence of a Child With Atopic Dermatitis Complicated by Parental Steroid Phobia: A Case Report.

Cureus·2025
Same author

Characterization of liquid-thickness distribution in micropores on elastic surface under sliding and pressurizing conditions.

The Review of scientific instruments·2024
Same author

Drop impact on wet granular beds: effects of water-content on cratering.

Soft matter·2024

Related Experiment Video

Updated: Jan 27, 2026

Author Spotlight: Revolutionizing Microfluidics Through Microchannel Fabrication on Nanopaper
03:58

Author Spotlight: Revolutionizing Microfluidics Through Microchannel Fabrication on Nanopaper

Published on: October 6, 2023

2.4K

Concentration-adjustable micromixers using droplet injection into a microchannel.

Ryosuke Sakurai1, Ken Yamamoto2, Masahiro Motosuke2

  • 1Department of Mechanical Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan. yam@rs.tus.ac.jp.

The Analyst
|March 15, 2019
PubMed
Summary

A new micromixing technique uses droplet injection to enhance mixing efficiency. Mixing levels are precisely controlled by adjusting droplet injection frequency, offering scalable sample preparation.

More Related Videos

Procedure for the Development of Multi-depth Circular Cross-sectional Endothelialized Microchannels-on-a-chip
10:55

Procedure for the Development of Multi-depth Circular Cross-sectional Endothelialized Microchannels-on-a-chip

Published on: October 21, 2013

14.4K
A Femtoliter Droplet Array for Massively Parallel Protein Synthesis from Single DNA Molecules
10:45

A Femtoliter Droplet Array for Massively Parallel Protein Synthesis from Single DNA Molecules

Published on: June 20, 2020

10.9K

Related Experiment Videos

Last Updated: Jan 27, 2026

Author Spotlight: Revolutionizing Microfluidics Through Microchannel Fabrication on Nanopaper
03:58

Author Spotlight: Revolutionizing Microfluidics Through Microchannel Fabrication on Nanopaper

Published on: October 6, 2023

2.4K
Procedure for the Development of Multi-depth Circular Cross-sectional Endothelialized Microchannels-on-a-chip
10:55

Procedure for the Development of Multi-depth Circular Cross-sectional Endothelialized Microchannels-on-a-chip

Published on: October 21, 2013

14.4K
A Femtoliter Droplet Array for Massively Parallel Protein Synthesis from Single DNA Molecules
10:45

A Femtoliter Droplet Array for Massively Parallel Protein Synthesis from Single DNA Molecules

Published on: June 20, 2020

10.9K

Area of Science:

  • Fluid dynamics
  • Microfluidics
  • Chemical engineering

Background:

  • Efficient mixing is crucial for microfluidic applications.
  • Controlling mixing at the microscale presents significant challenges.
  • Existing methods often lack precise control or scalability.

Purpose of the Study:

  • To develop a novel micromixing technique utilizing droplet injection.
  • To investigate the influence of droplet injection parameters on mixing efficiency.
  • To establish a method for precise and controllable sample solution preparation.

Main Methods:

  • Development of a micromixing device employing droplet thrust into a mixing interface.
  • Experimental characterization of mixing performance under varying droplet injection frequencies, channel geometries, and diffusion coefficients.
  • Analysis of the relationship between mixing level and droplet volume fraction.

Main Results:

  • Mixing efficiency increases with droplet injection frequency.
  • Higher droplet-diameter-to-channel-width ratios and diffusion coefficients enhance mixing.
  • Mixing level demonstrates a linear correlation with the droplet volume fraction.

Conclusions:

  • The developed micromixing technique offers precise control over mixing levels.
  • The device enables the production of large volumes of sample solutions with arbitrary concentrations.
  • This method provides a simple, stable, and scalable solution for microfluidic mixing.