Lysate Clarification Filtration
Lysate Clarification Filtration - Related Videos
04:08
Purification of Bacteriophages from Bacterial Lysate
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2026
Source: Pett, N., et al. T4 Bacteriophage and E. coli Interaction in the Murine Intestine: A Prototypical Model for Studying Host-Bacteriophage Dynamics In Vivo. J. Vis. Exp. (2024)This video demonstrates the purification of bacteriophages from bacterial cell lysates using sequential centrifugation, membrane filtration, chloroform extraction, centrifugal filtration, and buffer exchange to obtain a purified phage preparation.
01:32
Filtration and Urine Formation
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2019
The function of the kidneys is to filter, reabsorb, secrete, and excrete. Every day the kidneys filter nearly 180 liters of blood, initially removing water and solutes but ultimately returning nearly all filtrates into circulation with the help of osmoregulatory hormones. This process removes wastes and toxins but is also crucial to maintain water and electrolyte levels. Most of these functions are performed by the tiny but numerous nephrons contained within the kidneys. Blood enters the renal...
01:26
Glomerular Filtration: Net Filtration Pressure
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2025
Glomerular filtration, a key process in the kidneys, is regulated by three main pressures: Glomerular blood hydrostatic pressure (GBHP), Capsular hydrostatic pressure (CHP), and Blood colloid osmotic pressure (BCOP). GBHP, with an average value of 55 mmHg, promotes filtration by pushing water and solutes through the filtration membrane. This is balanced by two opposing forces: CHP, a "back pressure" exerted against the filtration membrane by fluid already in the capsular space and renal tubule,...
00:53
Filtration
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2024
Filtration is a physical separation process that involves passing a suspension through a porous medium to separate solids from fluids. During filtration, solids collect on the porous medium while liquids, also collectively known as the filtrate, pass through. The filtration medium is selected based on the filtration purpose, quantity, and nature of the precipitate. The general criteria for a suitable filtering medium are that it is inert, mechanically strong, nonabsorbent toward dissolved...
07:03
A New Clarification Method to Visualize Biliary Degeneration During Liver Metamorphosis in Sea Lamprey (Petromyzon marinus)
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Cited by 11 •
2014
Sea lamprey lose the gall bladder and bile ducts during metamorphosis, a process similar to human biliary atresia. A new fixation and clarification method (CLARITY) was modified to visualize the entire biliary tree using laser scanning confocal microscopy. This method provides a powerful tool to study biliary degeneration.
FAQs
Centrifugation may be performed before or alongside filtration to improve the overall clarification process. Using both steps can reduce the particulate burden presented to the filter, helping limit clogging and supporting production of a cleaner liquid fraction. This combined approach is useful when lysate debris could compromise later purification or biological analysis.
Avoiding clogging helps maintain the practical performance of the entire downstream workflow. Excess particulate material can interfere with chromatography and analytical instruments, while a properly clarified fraction supports more consistent handling and analysis. Filtration therefore contributes not only to sample cleanliness but also to the reliability and continuity of subsequent molecular biology procedures.
A cleaner liquid fraction provides a more suitable starting material for assays and purification procedures that analyze soluble biological components. Removing particulate interference can improve consistency in protein purification, enzyme assays, and immunoassays. It also makes the sample more compatible with analytical instruments, which are better protected when insoluble material has been reduced.
After cells have been disrupted to produce a lysate, the sample can undergo centrifugation, filtration, or both. The liquid fraction is then separated from retained particulate material and carried forward into the selected downstream workflow. The exact sequence can vary because centrifugation may occur before filtration or be used alongside it to improve clarification.
Clarified lysates support a range of biological workflows, including protein purification, enzyme assays, immunoassays, and other molecular biology analyses. The process is especially relevant when insoluble debris could obstruct chromatography, affect instrument operation, or reduce consistency between samples. Its value lies in preparing a liquid fraction that is more compatible with these applications.
In protein purification, clarification prepares the lysate for downstream processing by reducing insoluble material before chromatography. This helps prevent particulate-related clogging and protects the purification system from debris that could interfere with operation. A cleaner starting fraction also supports more consistent handling of soluble proteins during subsequent purification steps.