.png){kind=icon}
.png){kind=icon}
Return
Microwave-Enabled Immobilization of Cu2O on Cellulosic Paper for Antimicrobial Performance Against Gram-Positive and Gram-Negative Bacteria
.png){kind=icon}
PRE
AI
S
J
D
P
DOI：10.1002/cnma.202500798.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
Immobilization of Cu2O on cellulose fibers has been successfully conducted by a microwave-assisted synthesis approach at 60°C and 300 W power within 7 min. A Cu2O loading of 15.3 wt% was achieved in this short experimental time without employing any linker, binder, or retention aid. The particle size of Cu2O was estimated to be in the range from 260 nm to 1.3 µm. Paper sheets have been fabricated without (blank paper designated as BP) and with Cu2O-immobilized cellulosic fibers using a TAPPI (Technical Association of the Pulp and Paper Industry) Handsheet former, according to TAPPI test method 205 sp-02. The immobilization of Cu2O on paper matrices altered the surface hydrophilicity, resulting in a substantial increase in the contact angle, reaching up to 83°. The tensile strength was increased from 595 N/m in BP to 1303 N/m for Cu2O-immobilized matrices. The antimicrobial activity has been substantially improved in Cu2O-immobilized paper matrices against both Gram-positive (S. aureus) and Gram-negative (E. coli) bacterial species. A prominent inhibition zone of 6–18 mm against S. aureus and 6–16 mm against E. coli was observed within a 12-h incubation period, accompanied by maximum % reduction in bacterial count of 98% and 95%, respectively, within 2 h of visible light exposure.
Keywords:
antimicrobial
Cu2O immobilization
E. coli
paper matrices
rapid microwave method
S. aureus
Journal
IF:
2.6
Papers:
645
Citations:
3.8K
Organization
Cited Papers