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Information Journal Paper

Title

Visualization of acidic and alkaline pH effect on biofilm formation of Staphylococcus aureus isolates by Atomic force microscope

Pages

  942-949

Abstract

 StapHylococcus aureus is the most common pathogen causing nosocomial infections that their treatment by antibiotics is difficult. Biofilm potential of S. aureus is considered to be one of the main reasons for its survival and is influenced by many environmental factors. The purpose of this study was to evaluate the effect of pH on biofilm formation of S. aureus and its visualization by Atomic force microscope (AFM). 100 S. aureus strains were isolated from clinical specimens of patients who were referred to Milad Hospital, Tehran and diagnosed by biochemical tests. A microtiter plate method was used to determine the strength of biofilm formation under acidic and alkaline pH. The effect of pH on biofilm formation was visualized by using AFM. In pH 7 and 9 the biofilm formation of S. aureus strains was at highest level, 78. 1% and 71. 9% but in pH3 and 12 was at lowest rate 35% and 35. 4%. There is a significant association between pH and biofilm formation. AFM microscopy analysis of effect of pH 3 and 12 in S. aureus showed reduction biofilm structures. In pH 7 and pH 9 more biofilm and less planktonic cells were observed. The increase or decrease in pH value was involved in decrease of biofilm formation. The AFM was a useful tool for visualization of S. aureus biofilm.

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    Cite

    APA: Copy

    Honarmand Jahromy, Sahar, NOORBAKHSH, FATEMEH, Hosseini, Omid, & Sajdeh, Abolfazl. (2018). Visualization of acidic and alkaline pH effect on biofilm formation of Staphylococcus aureus isolates by Atomic force microscope. INTERNATIONAL JOURNAL OF MOLECULAR AND CLINICAL MICROBIOLOGY, 8(1), 942-949. SID. https://sid.ir/paper/328170/en

    Vancouver: Copy

    Honarmand Jahromy Sahar, NOORBAKHSH FATEMEH, Hosseini Omid, Sajdeh Abolfazl. Visualization of acidic and alkaline pH effect on biofilm formation of Staphylococcus aureus isolates by Atomic force microscope. INTERNATIONAL JOURNAL OF MOLECULAR AND CLINICAL MICROBIOLOGY[Internet]. 2018;8(1):942-949. Available from: https://sid.ir/paper/328170/en

    IEEE: Copy

    Sahar Honarmand Jahromy, FATEMEH NOORBAKHSH, Omid Hosseini, and Abolfazl Sajdeh, “Visualization of acidic and alkaline pH effect on biofilm formation of Staphylococcus aureus isolates by Atomic force microscope,” INTERNATIONAL JOURNAL OF MOLECULAR AND CLINICAL MICROBIOLOGY, vol. 8, no. 1, pp. 942–949, 2018, [Online]. Available: https://sid.ir/paper/328170/en

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