Novel antibacterial agent prepared by poly (hexamethylene guanidine hydrochloride) functionalized hollow nano-silica
A simple synthetic method of poly(hexamethylene guanidine hydrochloride) grafted hollow nano-silica (HSN-PHMG), a novel antibacterial material, was proposed. The water dispersibility and antibacterial property of HSN grafting of PHMG were improved. The hollow structure of nano-silica was characteriz...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Journal of Materials Engineering
2019-03-01
|
| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://html.rhhz.net/CHXB/html/2020-3-40.htm |
| Summary: | A simple synthetic method of poly(hexamethylene guanidine hydrochloride) grafted hollow nano-silica (HSN-PHMG), a novel antibacterial material, was proposed. The water dispersibility and antibacterial property of HSN grafting of PHMG were improved. The hollow structure of nano-silica was characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and thermogravimetric analysis were used to characterize the successful grafting of PHMG and the mass fraction of PHMG is about 9.5% in HSN-PHMG. Antibacterial test using Escherichia coil (<i>E.coil</i>) and Staphylococcus aureus (<i>S.aureus</i>) as test strains and the results show that the minimum inhibitory concentration (MIC) of HSN-PHMG on <i>E.coil</i> and <i>S.aureus</i> are all 32 mg/L; <i>E.coil</i> can be completely killed within 2 h when the concentration of HSN-PHMG is 64 mg/L. |
|---|---|
| ISSN: | 1001-4381 1001-4381 |