Table 1.

Origin and relevant physicochemical properties of the polysaccharides used in this work

Bacterial origin	Name	Mw a (kDa)	Intrinsic viscositya [η] (dl/g)	Charge index ib
Escherichia coli CFT073	G2cps	780	5	0.5
Salmonella Typhi	Vi	280	10	1
Haemophilus influenzae serotype b	PRP	550	10	0.5
Neisseria meningitidis serogroup A	MenA	200	10	1
Neisseria meningitidis serogroup C	MenC	200	10	1
Neisseria meningitidis serogroup Y	MenY	600	10	0.5
Neisseria meningitidis serogroup W135	MenW135	500	12	0.5
Streptococcus pneumoniae serotype 12 F	PnPS12F	1000	10	0.16
Streptococcus pneumoniae serotype 18 C	PnPS18C	300	3	0.2
Streptococcus pneumoniae serotype 1	PnPS1	500	4	0.33
Streptococcus pneumoniae serotype 3	PnPS3	700	7	0.5
Streptococcus pneumoniae serotype 9 V	PnPS9V	500	2	0.2
Streptococcus pneumoniae serotype 8	PnPS8	300	6	0.25
Streptococcus pneumoniae serotype 19 A	PnPS19A	250	1	0.33
Streptococcus pneumoniae serotype 7 F	PnPS7F	1000	1	0
Streptococcus pneumoniae serotype 22 F	PnPS22F	800	2	0.2
Streptococcus pneumoniae serotype 14	PnPS14	500	1	0
Streptococcus pneumoniae serotype 2	PnPS2	1300	5	0.17
Streptococcus pneumoniae serotype 4	PnPS4	400	4	0.25
Streptococcus pneumoniae serotype 5	PnPS5	200	3	0.2
Streptococcus pneumoniae serotype 6B	PnPS6B	1150	3	0.25
Streptococcus pneumoniae serotype 9 N	PnPS9N	700	2	0.2
Streptococcus pneumoniae serotype 10A	PnPS10A	550	2	0.14
Streptococcus pneumoniae serotype 11 A	PnPS11A	1000	3	0.25
Streptococcus pneumoniae serotype 15B	PnPS15B	800	2	0.2
Streptococcus pneumoniae serotype 17 F	PnPS17F	900	3	0.14
Streptococcus pneumoniae serotype 19 F	PnPS19F	650	3	0.33
Streptococcus pneumoniae serotype 20	PnPS20	600	2	0.17
Streptococcus pneumoniae serotype 23 F	PnPS23F	1200	5	0.25
Streptococcus pneumoniae serotype 33 F	PnPS33F	1000	2	0
noncapsulated Streptococcus pneumoniae strain CSR SCS2	CWPS	Nd	Nd	Nd

Indicated numbers correspond to mean values.

^aThe relative standard deviation of Mw and [η] determination is <10%.

In bold: active broad spectrum antibiofilm polysaccharides. Underlined: active narrow spectrum antibiofilm polysaccharides.

^bThe charge index i corresponds to the ratio of the number of acidic group to the number of monosaccharide residue in a repeating unit.

Nd, Not determined.