Use MSI Percent when you need to compute membrane stability as one minus the ratio of initial to boiled conductivity times 100, requiring a positive boiled conductivity and an initial conductivity that does not exceed it. Enter Boiled conductivity and Initial conductivity using the definitions and units below so the result can be reproduced.

Boiled conductivity

Conductivity after boiling in microsiemens; must be greater than zero.

Initial conductivity

Initial conductivity in microsiemens; must not exceed the boiled conductivity.

The published tool contract uses this rule: Compute membrane stability as one minus the ratio of initial to boiled conductivity times 100, requiring a positive boiled conductivity and an initial conductivity that does not exceed it.

Membrane stability index

Membrane stability index percentage between 0 and 100.

A ratio or percentage can conceal the scale of its numerator and denominator and becomes sensitive to measurement error when the denominator is small.

Retain the original Boiled conductivity and Initial conductivity values and their units alongside the result. CMS Percent is useful when you instead need to compute cell membrane stability as a percentage by comparing the control conductivity ratio to the treated conductivity ratio, control divided by treated times one hundred, clamped to the range zero through one hundred. Apoptotic Index provides another view by helping you compute the apoptotic index as the ratio of apoptotic cells to mitotic cells.

• CMS Percent

  Compute cell membrane stability as a percentage by comparing the control conductivity ratio to the treated conductivity ratio, control divided by treated times one hundred, clamped to the range zero through one hundred.

• Apoptotic Index

  Compute the apoptotic index as the ratio of apoptotic cells to mitotic cells.

• Specific Membrane Capacitance

  Compute specific membrane capacitance in microfarads per square centimetre as total membrane capacitance divided by membrane area.