scholarly journals A One-Pot Synthesis and Characterization of Antibacterial Silver Nanoparticle–Cellulose Film

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 440 ◽  
Author(s):  
Qi-Yuan Chen ◽  
Sheng-Ling Xiao ◽  
Sheldon Q. Shi ◽  
Li-Ping Cai

Using N,N-dimethylacetamide (DMAc) as a reducing agent in the presence of PVP-K30, the stable silver nanoparticles (Ag-NPs) solution was prepared by a convenient method for the in situ reduction of silver nitrate. The cellulose–Ag-NPs composite film (CANF) was cast in the same container using lithium chloride (LiCl) giving the Ag-NPs-PVP/DMAc solution cellulose solubility as well as γ-mercaptopropyltrimethoxysilane (MPTS) to couple Ag-NPs and cellulose. The results showed that the Ag-NPs were uniformly dispersed in solution, and the solution had strong antibacterial activities. It was found that the one-pot synthesis allowed the growth of and cross-linking with cellulose processes of Ag-NPs conducted simultaneously. Approximately 61% of Ag-NPs was successfully loaded in CANF, and Ag-NPs were uniformly dispersed in the surface and internal of the composite film. The composite film exhibited good tensile properties (tensile strength could reach up to 86.4 MPa), transparency (light transmittance exceeds 70%), thermal stability, and remarkable antibacterial activities. The sterilization effect of CANF0.04 against Staphylococcus aureus and Escherichia coli exceed 99.9%. Due to low residual LiCl/DMAc and low diffusion of Ag-NPs, the composite film may have potential for applications in food packaging and bacterial barrier.


RSC Advances ◽  
2015 ◽  
Vol 5 (26) ◽  
pp. 20283-20294 ◽  
Author(s):  
Rafael Meinusch ◽  
Kristof Hormann ◽  
Romana Hakim ◽  
Ulrich Tallarek ◽  
Bernd M. Smarsly

We present a comprehensive approach to characterize the one-pot synthesis, macropore space morphology, and chromatographic performance of phenyl-modified macro–mesoporous silica monoliths.



2020 ◽  
Vol 46 (6) ◽  
pp. 3109-3123
Author(s):  
Sakineh Khaledi ◽  
Mahboobe Rajabi ◽  
Ahmad Reza Momeni ◽  
Heshmat Allah Samimi ◽  
Jalal Albadi


Synlett ◽  
2017 ◽  
Vol 29 (04) ◽  
pp. 477-482 ◽  
Author(s):  
Dibakar Deka ◽  
Subarna Kalita

A metal- and catalyst-free reductive alkylation protocol for the one-pot synthesis of 5-monoalkylbarbiturates from barbituric acids and aldehydes using the in situ generated chemoselective reducing agent 2-phenyl-2,3-dihydrobenzo[d]thiazole from 2-aminothiophenol and benzaldehyde is described. The notable advantages of the protocol are operational simplicity, mild reaction conditions, high yield, short reaction time, and simple workup and purification process which make it highly attractive.





2010 ◽  
Vol 60 (4) ◽  
pp. 620-629 ◽  
Author(s):  
Fatemeh Shokrolahi ◽  
Hamid Yeganeh ◽  
Hamid Mirzadeh
Keyword(s):  
One Pot ◽  


2007 ◽  
Vol 19 (7) ◽  
pp. 2575-2580 ◽  
Author(s):  
Hongjing Dou ◽  
Bin Xu ◽  
Ke Tao ◽  
Minhua Tang ◽  
Kang Sun


2017 ◽  
Vol 41 (14) ◽  
pp. 6893-6901 ◽  
Author(s):  
Mohammad G. Dekamin ◽  
Fatemeh Mehdipoor ◽  
Amene Yaghoubi

The preparation and characterization of a novel 1,3,5-tris(2-hydroxyethyl)isocyanurate functionalized graphene oxide (GO–THEIC) nanomaterial and its catalytic application for the Biginelli reaction are described.



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