Collection Devices FAQ's

What are the SalivaBio swabs made of?

SalivaBio swabs (SOS, SCS and SIS) are made of an inert polymer, constructed of food-grade raw materials, and processed under food-grade device production conditions.  These swabs were validated for use with some Salimetrics salivary kits by Salimetrics. The exact composition is proprietary property. 

 

How essential is it to the researcher to have the same lot number of kits?

​It is always best to use the same lot of kits and saliva collection supplies when feasible. Salimetrics monitors kit and collection supply lot variation and does not approve lots that are not within specifications.

 

Collection Systems FAQ's

What are the SalivaBio swabs made of?

SalivaBio swabs (SOS, SCS and SIS) are made of an inert polymer, constructed of food-grade raw materials, and processed under food-grade device production conditions.  These swabs were validated for use with some Salimetrics salivary kits by Salimetrics. The exact composition is proprietary property. 

 

What are the different saliva collection methods recommended by Salimetrics?

The recommendation of collection devices is dependent on which analytes are to be measured now (and in the future); whether the research participant is an infant, child, adult or elderly, or an animal; and whether the participant is capable of following simple instructions. In general, unstimulated, whole saliva collected by passive drool into high-quality polypropylene vials (cryovials) is the preferred method. The Saliva Collection Aid (SCA) helps facilitate this process. When the SCA cannot be used, Salimetrics in collaboration with SalivaBio has designed a series of swab-based tools to absorb samples. SalivaBio’ swab materials have been extensively tested for use with saliva.For more information on swab options, refer to the Saliva Collection Handbook

 

 

Collection Systems - Swabs FAQ's

What are the SalivaBio swabs made of?

SalivaBio swabs (SOS, SCS and SIS) are made of an inert polymer, constructed of food-grade raw materials, and processed under food-grade device production conditions.  These swabs were validated for use with some Salimetrics salivary kits by Salimetrics. The exact composition is proprietary property. 

 

Do I need to spin the saliva sample collected via swabs before freezing and storing them?

​You do not have to separate the saliva samples from the SalivaBio swabs before freezing; however, Salimetrics recommends saliva be removed from SalivaBio swabs by centrifugation (or compression) if you plan to store your saliva samples collected with SalivaBio swabs for more than 6 months. In this case, it would be better to centrifuge before freezing at -40ºC or below, in order to prevent freeze thaw effects. 

 

What will happens if the swab material is swallowed?

​Generally, it will pass. We have a document that we can send upon request:  ‘Salimetrics Oral Swab Safety Evaluation Information Sheet’.  

 

Can I collect samples for testing analytes using cotton?

Salimetrics does not recommend the use of cotton for collecting saliva samples. Passing saliva through an organic, cotton based material causes interference with many analytes, and when sample volumes are small, it can be very difficult to recover that volume by compression or centrifugation.  SalivaBio swabs have been designed specifically to resolve these issues. 

 

 

Can I store Saliva in SalivaBio Swabs?

Saliva can be stored frozen in SalivaBio swabs for short periods of time (weeks, months). However, generally speaking, the sooner samples can be expressed or centrifuged to remove saliva from the swabs, the better. This is mainly due to the fact that saliva storage tubes are not designed for long term storage at ultra-cold temperatures. Often the air space in these vials is large relative to the volume of the sample. Also, when saliva is distributed in the swab, the area of surface exposure to air inside the tube is increased. This creates opportunity for evaporation by sublimation which reduces the sample volume. This process has the potential to change the concentration per volume measurements for analytes, and especially so when the levels expected are very low and the volumes collected are very small.

 

 

How do I get saliva out of the swabs?

Specimens can be removed from SalivaBio swabs by centrifugation or compression and transferred to a vial appropriate for testing or cyrostorage.​ Visit the Saliva Collection Handbook for more information.