Earle’s Balanced Salt Solution (EBSS)

Description

Background

Earle’s Balanced Salt Solution (EBSS) is an isotonic buffer solution. It, however, contains inorganic salts and carbohydrates as an energy source designed for the short-term maintenance of mammalian cells in a CO2 environment. The solution additionally provides an ideal environment to preserve the structural and physiological integrity of cells invitro by maintaining pH as well as the balance between intra and extracellular osmotic pressure.

Not sure whether to choose HBSS or EBSS? See our comparison guide.

General Features

• It is cost effective.
• Cell Culture Suited
• This buffer maintains the cell integrity of cells or tissues during irrigation, transportation, or dilution.
• Provides a consistent environment during the washing and re-suspending of cells
• PurMa Biologics offers EBSS in three pH formats, pH 7.2, 7.4, and pH 7.6.

Specific Features

• Glucose maintains the intra and extracellular osmotic pressure as well as provides the principal source of energy for cellular metabolism.
• EBSS Provides water and important inorganic ions necessary for cellular metabolism.
• This buffer Provides a buffer solution to maintain a medium in physiological pH (7.2-7.6)
• PurMa Biologics rigorously depletes  Mg²⁺ and Ca ²⁺ from the buffers
• Free of RNase/DNase
• Free of Proteases. It is rigorously tested for contaminating nonspecific endonuclease, exonuclease, and RNase activity.
• It is rigorously tested for contamination of endotoxin and mycoplasma.
• Is manufactured in three pH: 7.2 ± 0.01, pH: 7.4 ± 0.01, and 7.6 ± 0.01 at 25°C.
• Sterile filtered by 0.22µm membrane (in case of endotoxin-depleted EBSS by 0.1µm)
• As it is packed under N_2, the pH won’t change over time before opening the bottle.

Application

EBSS has an especially excellent role in protocols requiring the use of consistent conditions such as crosslinking, biotinylation, and fluorescent labeling reactions which require an amine-free buffer.

Formulation

For complete formulation, click here: EBSS Formulation

PurMa Biologics Manufactures Several Grades of Buffers

Regular Grade Buffer

PurMa Biologics manufactures Regular grade of buffer by using:  PurMa™ Cell Culture Suited Water (Cat# P3W110101)

We sterilize the buffers by autoclaving the solution. Finally we pack the buffer in our Class 100 Aseptic Facility.

Cell Culture Suited Grade Buffer

PurMa Biologics manufactures this grade of buffer by using :PurMa™ Cell Culture Suited Water (Cat# P3W110101)

After adjusting the pH, we finally, sterilize the buffer by  3 times passing through 0.2 µm filters. Additionally,  We pack the buffer under N2 gas  in our Class 100 Aseptic Facility.

RNase and DNase Free Grade Buffer

PurMa Biologics manufactures this grade of buffer by using :PurMa™ Ultra-Pure Cell Culture Suited Water (Cat# P3W110102)

We sterilize the buffers by autoclaving the solution.  Additionally, we pass the buffer  three times through 0.1 µm filters,  and finally  pack it under N2 gas in our Class 100 Aseptic Facility.

Cell Culture Suited / Endotoxin Depleted Grade Buffer

PurMa Biologics manufactures this grade of buffer by using: PurMa™ Ultra-Pure Cell Culture Suited Water (Cat# P3W110102)

After depleting  the endotoxins (see below for more details), we sterilize the buffer by 3 times passing through  0.1 µm filters and pack under N2 gas in our Class 100 Aseptic Facility

The Endotoxin Removing Procedure from Buffer

PurMa Biologics has the most sophisticated endotoxin removal procedure. To remove this pathogen, we pass the buffer  through the PurMa™ Endotoxin Elimination Column (Cat# P6H1216251). Furthermore, in our proprietary column,  we covalently conjugate Sepharose 6B  to an endotoxin-specific absorbent. We finally  eliminate the endotoxin residual by passing the unbound fraction three times through 0.1µm filters.

References

1. Recovery from potentially lethal damage induced by spirohydantoin mustard on 9L cells in vitro. Bertrand M, Deen DF, Hoshino T, Knebel K. Cancer Treat Rep. 1980 Aug-Sep;64(8-9):889-95.
2. Rotavirus survival in conventionally treated drinking water. Sattar SA, Raphael RA, Springthorpe VS. Can J Microbiol. 1984 May;30(5):653-6. doi: 10.1139/m84-097.
3. Glucose elevates ornithine decarboxylase expression in Vero cells. Lundgren DW, Prokay SL. J Cell Physiol. 1988 Dec;137(3):469-75. doi: 10.1002/jcp.1041370311.