Stainless steel got the best antibacterial property against Escherichia coli and Staphylococci by copper ions implantation with 100keV, 8 1017cm-2 and antibacterial treatment at 500癈 for 4 hours subsequently.
Cu-ion implantation was carried out at energies from 60keV to lOOkeV for doses ranging from 0.2 1017cm-2 to 8 1017cm-2. Antibacterial treatment at 400-700 C for 1-6 hours was applied to make the copper-rich phase precipitate dispersedly and homogeneously.
Abundant phase of Cu9.9Fe0.1 precipitated in the surface as form of acicular after antibacterial treatment at 500 C for 4 hours, and then steel possessed antibacterial property against Escherichia coli and Staphylococci.
An active molecule-chitosan was introduced into the leather making process. The following factors that influence the physical and antibacterial properties of leather were analyzed: quantities of the chitosan, time of the antibacterial treatment, pH values and temperatures of antibacterial treatment.
But new phases such as Cu9.9Fe0.1, Fe4U3 were formed by antibacterial treatment, the existing forms of Cu become diversity. Antibacterial property of stainless steel attributes to these Cu contained phase and Cu rich phase. All of these new phases are defined as antibacterial phases of antibacterial stainless steel prepared by Cu ions implantation.
DispaseII enzyme digestion: After rinsed and dealed with antibiotics, the skin block was cut into about 0.5 cm×1 cm,digested with 4 mg/mL DispaseII enzyme in 40C for 16 hours.
Trypsin enzyme digestion: After rinsed and dealed with antibiotics, the skin block was cut into about 0.5 cm×1 cm, digested with 0.25% trypsin in 40C for 12 hours.
8 chicken kidneys immunized the IBV vaccine (H120,H52), from 3 areas of Jilin province were incubated with P.S into allantoic cavity of chicken embryos to isolate and multiply viruses.
The suppression of potentially pathogenic microorganisms using prophylactic antibacterial treatment could eventually protect the patient from infection.
The development of resistance to different antibiotics, as revealed by analysis of the inhibition zones, was related to antibacterial treatment courses.X.
Despite the changing prevalence of bacterial pathogens and increasing resistance of Streptococcus pneumoniae, amoxicillin remains the .rst-line antibiotic for initial antibacterial treatment of AOM.
The antagonist D67-2 (Pseudomonas sp. ) was screened from the epiphytes of citrus roots. Jincheng (Citrus sinensis Osbeck)fruits were treated by D67-2 suspension at concentrations of 5 × 10~6,5 × 10~7and 5 ×10~8 cells/ml, and then individually packed with polyethylene film bag, and storaged at room temperature for 100 days. It was found that D67-2 was effective on the control of citrus penicillium rot,and did not influence the nutrient components and edible quality of fruits,and the effectiveness of the sus...
The antibiotic finish introduced to knitted cotton fabric is a composite treatment with several antimicrobial a-gents. The determination of antibiotic effect is conducted with the reported methods of fabric binding and test tube. Results show that the treated fabrics have good bacteria repellancy,softer touch,and longer validity.
Antibacterial antifungal finishing is widely carried out for improving textile properties and sanitary conditions especially preventing bacteria or fungus's infection mold from ravaging textiles.Cotton cloth is finished by cross-linking of chitosan (CS) as antibacterial affective components with glutaraldehyde (GA).Moreover, the antibacterial activity, wash fastness,strength, air permeability, water vapor permeability and stiffness of finished fabrics arc tested. The result is achieved that antibacterial in...