Table 1.

Quantitative results of EDS analysis of PLA, PLA–ALG–Na⁺, PLA–ALG–Cu²⁺-1 and PLA–ALG–Cu²⁺-2.

PLA
Atom	C	O
At. %	51.70	48.33
Std. dev.	0.11	0.11
PLA –ALG –Na+
Atom	C	O	Na	Ca
At. %	71.41	28.42	0.10	0.08
Std. dev.	9.74	9.89	0.14	0.17
PLA – ALG – Cu2+-1
Atom	C	O	Cu	Na	S	Cl	Ca
At. %	55.26	40.95	0.92	0.78	0.02	1.93	0.15
Std. dev.	1.26	2.59	1.26	1.10	0.04	0.65	0.21
PLA –ALG –Cu2+-2
Atom	C	O	Cu	Na	S	Cl	Ca
At. %	35.16	19.96	15.06	5.87	1.18	21.44	1.30
Std. dev.	8.66	2.67	1.53	0.89	0.59	5.23	0.75