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. Author manuscript; available in PMC: 2011 Dec 16.
Published in final edited form as: Vaccine. 2010 Oct 27;29(2):314–322. doi: 10.1016/j.vaccine.2010.10.036

Figure 4. Biopolymer releases no fluid when extruded through a 26G needle.

Figure 4

The alginate based biopolymer used to encapsulate live influenza virus for SQ immunizations of mice can be easily extruded from a syringe with a 26G needle, without phase separation. When extruded through the needle of a syringe, either as a stack (left) or in line (middle), there is no release of liquid from the biopolymer. For comparison, a drop of PBS is shown (right).