Stir Plate
Stir Plate - Related Videos
10:20
Mammalian Cell Encapsulation in Alginate Beads Using a Simple Stirred Vessel
0 Views •
Cited by 13 •
2017
This video and manuscript describe an emulsion-based method to encapsulate mammalian cells in 0.5% to 10% alginate beads which can be produced in large batches using a simple stirred vessel. The encapsulated cells can be cultured in vitro or transplanted for cellular therapy applications.
10:49
Power Input Measurements in Stirred Bioreactors at Laboratory Scale
0 Views •
Cited by 9 •
2018
The power input in stirred bioreactors can be measured through the torque that acts on the impeller shaft during rotation. This manuscript describes how an air bearing can be used to effectively reduce friction losses observed in mechanical seals and improve the accuracy of power input measurements in small-scale vessels.
11:31
Continuously-stirred Anaerobic Digester to Convert Organic Wastes into Biogas: System Setup and Basic Operation
0 Views •
Cited by 34 •
2012
Laboratory-scale anaerobic digesters allow scientists to research new ways of optimizing existing applications of anaerobic biotechnology and to evaluate the methane producing potential of various organic wastes. This article introduces a generalized model for the construction, inoculation, operation, and monitoring of a laboratory-scale continuously stirred anaerobic digester.
07:18
Generating Lap Joints Via Friction Stir Spot Welding on DP780 Steel
0 Views •
Cited by 2 •
2019
Here, we present a friction stir spot welding (FSSW) protocol on dual phase 780 steel. A tool pin with high-speed rotation generates heat from friction to soften the material, and then, the pin plunges into 2 sheet joints to create the lap joint.
13:29
Jet Impinging on an Inclined Plate
0 Views •
2023
Source: Ricardo Mejia-Alvarez and Hussam Hikmat Jabbar, Department of Mechanical Engineering, Michigan State University, East Lansing, MI The goal of this experiment is to demonstrate how a fluid flow exerts forces on structures by conversion of dynamic pressure into static pressure. To this end, we will make a plane jet impinge on a flat plate and will measure the resulting pressure distribution along the plate. The resultant force will be estimated by integrating the product between the...
FAQs
The rotating magnetic field couples to the magnetic stir bar inside the vessel, causing the bar to turn and generate fluid motion. Adjusting the rotation speed changes how strongly the liquid circulates, helping distribute dissolved substances and reactants more uniformly. This controllability supports solution preparation and consistent mixing during chemical procedures.
Liquid viscosity and vessel size are important limitations. More viscous liquids may not circulate as readily, while a larger vessel can make it harder for the rotating bar to maintain effective movement throughout the sample. These conditions can reduce uniformity, so researchers must consider the sample and container together when assessing mixing performance.
A heated stirring setup can combine controlled fluid motion with temperature support. Mixing helps maintain a more uniform concentration while heating, and the paired functions can promote consistent conditions throughout a sample. This is useful when a chemical preparation or reaction requires both continued agitation and a controlled thermal environment.
Place the magnetic stir bar inside the vessel, position the vessel on the plate, and begin rotation at an adjustable speed. Increase or reduce the speed as needed to create suitable fluid motion without losing effective control. Continued stirring promotes dissolution and helps maintain a more uniform concentration during preparation.
Chemists can use this equipment when reactants must remain combined or when a sample needs a homogeneous composition during analysis. It also supports preparation of solutions and suspension of particles. Maintaining consistent mixing helps reduce uneven concentration within the vessel, improving the reliability of procedures that depend on a uniform sample.
Because mixing occurs through a magnetic stir bar rather than mechanical blades entering from above, the vessel can remain covered or sealed during operation. This contact-free arrangement reduces contamination risk while allowing continued agitation. It is therefore useful when maintaining sample integrity matters during chemical preparation, reactions, or analytical work.