Synthesis and Bactericidal Properties of Hyaluronic Acid Doped with Metal Nanoparticles

Table 1

Frequency bands of the major functional groups present in the HA and HA + metal NPs.

Number	Bond	Frequency (cm^−1); pure HA	Frequency (cm^−1); HA+Au-2	Frequency (cm^−1); HA+Ag-2	Frequency (cm^−1); HA+Cu-2	Frequency (cm^−1); HA+AgPd-2
(1)	νO–H	3428,52	3419,14	3431,03	3430,83	3426,44
(2)	νC–H	2928,61	2926,71	2914,37	2925,68	2922,69
(3)	νC=O	1624,47	1728,94	1629,23	1630,56	1623,40
(4)	νC–C	1414,42	1412,76	1416,64	1417,31	1415,47
(5)	νC–C	1326,19	1281,01	1316,18	1319,27	1321,25
(6)	νC–O	1154,97	—	—	1155,23	1154,67
(7)	νC–O	1041,64	1077,03	1043,18	1042,60	1039,55
(8)	δCH2	611,40	611,01	604,97	606,98	613,01
(9)	νC=O	—	1618,63	—	—	—