Journal of Nanomaterials

Research Article

The Antibacterial and Antifungal Textile Properties Functionalized by Bimetallic Nanoparticles of Ag/Cu with Different Structures

Table 3

The effect of washing cycles on the microbial activity of textile Malwa 150-Optical White. The static activity was determined in accordance with the following equation: (see details in Section 2). The lethal activity was determined in accordance with the following equation: (see details in Section 2).


Bacterial strain	Candida albicans		Escherichia coli		Staphylococcus aureus
Bacterial strain	ATCC 10231		ATCC 8739		ATCC 6538

Inoculum (cell/mL)	0.9 ± 0.3 × 10⁵		1.5 ± 0.2 × 10⁵		1.3 ± 0.2 × 10⁵
Value of growth ()	1.54		1.54		1.50

Type of solution
Number of washing cycles	()/()		()/()		()/()

5	−0.11/−1.64	0%	Absence	100%	Absence	100%
10	−0.02/−1.56	0%	Absence	100%	Absence	100%
15	−0.12/−1.66	0%	Absence	100%	Absence	100%
20	0.10/−1.44	20.3%	Absence	100%	Absence	100%

Type of solution
Number of washing cycles	()/()		()/()		()/()

5	0.12/−1.41	25%	Absence	100%	Absence	100%
10	−0.04/−1.58	0%	Absence	100%	Absence	100%
15	−0.02/1.56	0%	Absence	100%	Absence	100%
20	0.14/−1.40	27.23%	Absence	100%	Absence	100%

Type of solution	Ag NPs/Cu²⁺
Washing cycle	()/()		()/()		()/()

5	−0.04//−1.58	0%	Absence	100%	Absence	100%
10	0.07/−1.46	15.59%	Absence	100%	Absence	100%
15	4.57/2.96	100%	Absence	100%	Absence	100%
20	4.09/2.49	99.99%	Absence	100%	Absence	100%

Type of solution	Cu NPs/Ag⁺
Washing cycle	()/()		()/()		()/()

5	−0.06/−1.66	0%	Absence	100%	Absence	100%
10	−0.15/−1.75	0%	Absence	100%	Absence	100%
15	−0.05/−1.66	0%	Absence	100%	Absence	100%
20	0.02/−1.58	4.89%	Absence	100%	Absence	100%

Type of solution	Ag⁺/Cu²⁺
Number of washing cycles	()/()		()/()		()/()

5	4.02/2.48	99.99%	Absence	100%	Absence	100%

The activity of static ()/lethal (). The % reduction in cell growth relative to the control samples.
Absence means the complete elimination of microorganisms. The sample is active microbiologically.