Cryopreservation

Critical Temperature,
Storage Phase, and Capacity. MVE offers a complete line of
storage solutions in liquid or vapor, with temperatures ranging
from -125°C to -190°C.

High Efficiency/Vapor Series

There is a critical temperature for most biological samples that are cryopreserved. This critical temperature is known as the Glass Transition
Temperature (Tg) of water, which is widely accepted as being in the order of -130° to -135°C. The long-term viability of frozen
samples can be seriously compromised if stored above this temperature range. Further, if they experience several transitions through
this range in either thermal direction, additional deterioration may occur. It is important that the LN2 freezer
maintain a lower temperature, even during filling and sample retrieval cycles. This is much more likely to be
achieved if the freezer maintains a temperature of -190°C than if the system is at or near the critical temperature at normal equilibrium. Chart-MVE’s approach to this problem was to
improve the fundamental design of freezers used in vapor phase and
to design and build a nitrogen vapor freezer which ensures stability
at -190°C.

MVE Series

MVE Cryopreservation Systems are designed to
be used for either vapor or liquid storage. A wide
neck opening and stainless steel construction
provide the most durable environment for your
biological samples. With advanced features and
storage from 3,200 to 39,000 vials, the MVE
series is the choice of laboratories worldwide.
The MVE Series freezers are designed primarily
for liquid phase storage. If vapor phase storage
is required, ask your distributor about the
vapor storage accessory package.

Stock Series

MVE Stock Series tanks are primarily designed for storage of
either vials or straws on canes in liquid nitrogen. The tanks are
built for long life, durability in service and ergonomic sample
retrieval, all of vital importance for this type of storage environment.
Dual lids on the MVE 1318 aid in sample removal while
retaining critical temperatures inside the storage area. The rotating
sample tray in the 1842P-150 allows for maximum storage
space and easy access. All MVE Stock units are built with an
emphasis on sample security and the ability to provide safe
long-term storage for your valuable samples.

Cabinet Series

The MVE 600 and 1400 Cryopreservation Systems
are designed to provide reliable storage of biological
products in liquid or vapor*. The units are upgraded
with improved ergonomics and easier sample access.
In addition, the cabinets are constructed from aluminum,
with stainless steel top decks. With vial storage
capacities ranging from 16900 to 26650,
low-maintenance design and the TEC 3000 controller,
the MVE Cabinet Series are world-class, wide neck
freezers.