• Title/Summary/Keyword: Antiseptic resistance

Search Result 2, Processing Time 0.017 seconds

Complete Nucleotide Sequence of Small Multidrug Resistance Plasmid pKH4 (Small Multidrug Resistance(smr) 플라스미드 pKH4의 염기서열 결정)

  • 고창학;문경호
    • YAKHAK HOEJI
    • /
    • v.43 no.6
    • /
    • pp.789-792
    • /
    • 1999
  • The complete nucleotide sequence of pKH4, a small multidrug resistance (smr) plasmid isolated from multidrug resistant Staphylococcus aureus SA5, was determined. Sequence analysis has revealed that pKH4 has two open reading frames for Rep and Smr proteins. The comparison of the amino acid sequence of Smr protein of pKH4 with those of other Smr proteins of various Staphylococcus showed that Smr protein of pKH4 is a new member of the SMR family.

  • PDF

Study on Properties of Natural Adhesives with Lacquer for Ceramic Conservation (옻을 활용한 토기 복원용 천연 접착재료의 특성 연구)

  • Jeong, Se Ri;Kim, Eun Kyung;Yu, Jae Eun
    • Journal of Adhesion and Interface
    • /
    • v.12 no.4
    • /
    • pp.111-116
    • /
    • 2011
  • The characteristics of natural resin, sap of the lacquer tree were examined as an adhesive for the ceramic conservation since it has such outstanding properties like corrosion resistance against acid and alkali, heat-resistance, waterproof, antiseptic and protection against insects. In order to utilize raw lacquer as an adhesive not under the hardening conditions of lacquer like high humidity (RH 75 to 85%) and high temperature (120 to $170^{\circ}C$), but under normal condition, isinglass and animal glue were added to raw lacquer at certain ratio. In addition, the viscosity and the drying time were measured and their possibilities of application were also investigated through measurement of tensile and adhesive strength. As a result of experiment, it was possible to dry at room temperature and RH $50{\pm}5%$ to mix with raw lacquer and glue, and the drying time of sample with animal glue was faster than that of isinglass. Furthermore, the adhesion of sample with glue was increased more than raw lacquer. It seems to be possible to use the environmental friendly traditional adhesive for the ceramic conservation and restoration, if there are studies or examinations of safety of applications on objects and weathering resistance.