Viva Crossflow | Tangential flow ultrafiltration & concentration devices for samples up to 5 l

Viva is a ready-to-use and reusable laboratory crossflow cassette for

concentrating up to 1 l samples. Optimally suited for applications like

cell culture supernatant concentration, virus concentration and water sample conc

(e.g. environmental samples or water from fish breeding facilities), this

economical product offers a standard of ease of use, reliability and flexibility

unrivalled by any laboratory filtration system in the market.

The thin-channel, flip-flow recirculation path of the modules provides

high crossflow velocities with minimum pump speed requirements.

A single module with 50 cm² active membrane area typically

concentrates 250 ml by a factor of 20 in less than 30 min.

Alternatively, two Vivaflow^® 50R modules can be used in parallel

for concentration of 1 l in approx. 45 minutes. Near total recovery of the

concentrate is achieved with a single final rinse.

Viva can easily be cleaned and re-used several times.

All accessories for sample concentration, except a peristaltic pump with

a pump head for size 16 tubing, are included in the package for using a

single cassette. A 500 ml sealed diafiltration reservoir can be added

to the system for rapid and convenient buffer exchange.

Equipment required

The standard Viva package comes with tubing, pressure indicator,

flow restrictor and high pressure pump tubing. All you need is a

peristaltic pump with a pump head capable of handling 6.4 mm OD tubing (size 16).

• Plug and play laboratory cross flow cassette
• Fast and easy protein sample concentration
• Reusable
• Concentrates volumes from 0.1 l -1 l
• Optimal for cell culture supernatant and virus concentration
• Smallest cross flow cassette with premium Hydrosart^® membrane
• High flow rate and recovery