【摘 要】
:
Antibiotic-resistant bacteria contamination in environments imposes great threats to human life health.This research aims to develop novel targeted antibacterial biochars for achieving high selectivity to kill pathogenic Escherichia coli (E.coli).The glyc
【机 构】
:
College of Chemistry and Chemical Engineering,Inner Mongolia University,Hohhot 010021,China;Engineer
论文部分内容阅读
Antibiotic-resistant bacteria contamination in environments imposes great threats to human life health.This research aims to develop novel targeted antibacterial biochars for achieving high selectivity to kill pathogenic Escherichia coli (E.coli).The glycopolymer N-halamine-modified biochars (i.e.,BCPMA-Cl)were synthesized by the modification of biochars with poly[2-(methacrylamido) glucopyranose-co-acrylamide](P(MAG-co-AM),followed by chlorination treatment.Based on the results of FTIR,turbidity,XPS,and UV-vis,BCPMA-Cl was successfully synthesized and demonstrated to be able to eliminate Staphylococcus aureus (S.aureus) and E.coli.Especially,BCPMA-Cl possessed extremely potent to specific-killing 104 CFU·ml-1 of E.coli with lower hemolytic activity (<5%).Additionally,the antibacterial mechanisms of BCPMA-Cl against bacteria were contact-killing and release-killing contributed by active chlorine (i.e.,Cl+).Therefore,this work provided a cost-effective and facile approach for preparation of functional biochars used for bacteria-specific therapeutic applications via livestock pollutants as well as showing a promising strategy to avoid bacterial resistance.
其他文献
Chemical looping gasification (CLG) is a promising technology for high-quality syngas production.One key issue to successful CLG is the selection of high-performance oxygen carrier.In this study,several Ca-and Mg-rich steelmaking wastes from steel industr
Isooctane attracts great interest in recent years because of its promising potential as friendly-environmental gasoline,which is obtained by dimerization of isobutene with a hydrogenation step.Herein,a solid acid catalyst sulfated zirconia modified by ZnO
The porous CeO2 flowerlike micro-nano spheres based materials were prepared to remove HCN effec-tively at lower temperature range.The CeO2 and a serious of porous flowerlike ceria based materials loaded with metal species including Cu,Ag,Ni,Co and Fe were
An electrolyte Equation of State is presented by combining the Cubic Plus Association Equation of State,Mean Spherical Approximation and the Born equation.This new model uses experimental relative static permittivity,intend to predict well the activity co
As a potential methane efficient conversion process,non-oxidative aromatization of methane in fluidized bed requires a catalyst with good attrition resistance,especially in the states of high temperature,long-time rapid movement and chemical reaction.Exis
The inflammation can be stimulated by the surgical implantation and biomaterial presence through the foreign body via bio-interface.Macrophages play a key role in the interaction of host tissue to implant surfaces.In present study,the immuno-inflammatory
In recent years,synergistic chemo-photothermal therapy has revealed promising potential in treatments against various kinds of cancer.However,the development of superb photothermal agents with high drug loading capacity is still highly required.In this wo
The experimental solubility of sulfamonomethoxine in six different pure solvents (methanol,ethanol,1-propanol,l-butanol,ethyl acetate and acetone) and sulfamonomethoxine hydrate in acetone + water mixture solvents were measured from 294.55 K to 362.15 K b
Water pollution with dye chemicals from apparel industries is a serious problem in the world.Since most of dyes are potentially have toxic and carcinogenic effects on human,it is important to remove them before they are discharged to the environment.Among
Most non-viral carriers for in vitro delivery of nucleic acids suffer from low efficiency of introducing mRNA and other nucleic acids,especially large mRNA.Cas9 protein is the nuclease part of the powerful gene-editing tool,CRISPR/Cas9 system,Cas9 mRNA is