Water Aspirator
Water Aspirator - Related Videos
06:43
Fluid Aspiration from Mouse Glomeruli: A Method to Aspirate Glomerular Fluid from Mouse Using Two-Photon Mediated Micropuncture
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2023
This video showcases fluid aspiration from mouse glomeruli using the two-photon mediated micropuncture technique. The technique provides access to the living mouse’s glomeruli and thus helps gain insights into renal physiology.
07:10
Femoral Bone Marrow Aspiration in Live Mice
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Cited by 18 •
2014
This protocol describes a procedure for serial sampling of femoral bone marrow (BM) without requiring the sacrifice of mice. This procedure facilitates longitudinal studies of the BM composition of mice over time and provides serial access to cells within the BM for ex vivo and transplantation studies.
06:41
A Technique for Percutaneous Epididymal Spermatozoa Aspiration and Processing
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2026
Source:Li Xiaoming1, Liu Xiao1, Li Haiyang1, Cai Xiaohua1, Ou Jianping11Center for Reproductive Medicine, The Third Affiliated Hospital of Sun Yat-sen University.This video demonstrates the percutaneous aspiration of epididymal spermatozoa from a patient with azoospermia, a condition characterized by the absence of spermatozoa in the semen. The procedure involves disinfecting the scrotal area, aspirating epididymal fluid using a syringe with a specialized culture solution and processing the...
02:43
Fly Aspirator Tube: A Simple Tool to Transfer Live Drosophila
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2023
This video describes one method to build a fly aspirator, which can be used to transfer insects between enclosures without anesthesia. The aspirator in the example protocol was prepared for an experiment to quantify individual grooming...
01:23
States of Water
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2019
Water exists in any one of the three classical states: solid (ice), liquid (water), and gas (steam or water vapor). The state of water depends on i) the intermolecular forces that draw molecules together and ii) the kinetic energy that leads to movements that pull them apart. Water freezes when the intermolecular forces are greater than the kinetic energy. Unlike most other substances, water is less dense in its solid state than in its liquid state. This is because each water molecule can form...
FAQs
Inside the device, flowing water accelerates through a narrow opening, producing a local decrease in pressure. That lower pressure allows air or liquid in a connected vessel to move toward the aspirator. The suction therefore depends on the relationship between water movement through the opening and the pressure conditions in the water supply.
Vacuum strength depends mainly on the rate of water flow and the local water pressure. Changes in either condition can alter the pressure decrease generated at the narrow opening, affecting how strongly the system removes air or liquid. Because performance varies with these conditions, the device is most appropriate when a moderate, rather than highly controlled, vacuum is sufficient.
Backflow can allow water to move from the aspirator side toward the connected vessel, potentially introducing unwanted liquid into a sample or apparatus. This risk makes the direction and continuity of flow important during operation. In biological sample preparation, attention to backflow helps protect material being filtered, aspirated, degassed, or dried.
Its low cost and straightforward operation make a water aspirator practical for routine laboratory tasks that do not require a strong or precisely regulated vacuum. The device can support several common preparation steps while relying on ordinary water flow. Its suitability is greatest when moderate suction meets the experimental need and water use and disposal are acceptable.
A typical workflow connects the aspirator to the vessel or apparatus with suitable tubing, establishes flowing water, and then allows the pressure difference to draw air or liquid through the system. The operator should observe the process for adequate suction and possible backflow. After use, water flow and wastewater handling require attention.
During vacuum filtration, suction helps draw liquid through the filtration setup, while liquid aspiration uses the same pressure difference to remove fluid from a vessel. Both applications depend on maintaining an effective connection between the apparatus and the aspirator. In biology laboratories, these functions can simplify routine separation and sample-handling steps.
They are useful when a preparation step requires removal of air or residual liquid and a moderate water-driven vacuum is adequate. Degassing can reduce trapped air in a liquid, while drying steps can assist liquid removal after other handling procedures. The approach is most appropriate when the sample and workflow can accommodate water use and possible backflow precautions.