ZIB

Hits per page

hits 1 - 2 | 2 hits

Sorting

Electronic Resource

Evaluation of agents for use in medium for selective isolation of lyme disease and relapsing feverBorrelia species (1993)

Morshed, M. G. ; Konishi, H. ; Nishimura, T. ; [et al.]

Springer

European journal of clinical microbiology & infectious diseases 12 (1993), S. 512-518

add to mindlist on the mindlist

Details

ISSN: 1435-4373

Source: Springer Online Journal Archives 1860-2000

Topics: Medicine

Notes: Abstract Barbour-Stoenner-Kelly (BSK) II medium containing fosfomycin, 5-fluorouracil, trimethoprim and sulfamethoxazole was evaluated for the selective isolation of theBorrelia species responsible for Lyme disease and relapsing fever. The maximum noninhibitory concentrations of fosfomycin, 5-fluorouracil, trimethoprim and sulfamethoxazole for six strains of borreliae were 500 to 〉1000 µg/ml, 250 to 〉500 µg/ml, 125 to 500 µg/ml and 125 to 500 µg/ml, respectively. The combination of four agents (fosfomycin 400 µg/ml, 5-fluorouracil 100 µg/ml, trimethoprim 10 µg/ml, sulfamethoxazole 50 µg/ml) did not inhibit the growth of borreliae, allowing growth in cultures inoculated with a few organisms (theoretically a single organism). In contrast, the fouragent combination completely inhibited the growth of 12 of 13 other bacterial strains tested as possible contaminants. This combination also allowed the selective growth of borreliae in experimentally contaminated specimens. The four-agent combination in BSK II medium may be useful for selective isolation ofBorrelia species responsible for Lyme disease and relapsing fever from clinical and environmental samples.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01970956

Permalink

Library	Location	Call Number	Volume/Issue/Year	Availability

Others were also interested in ...

Paper (German National Licenses)

Fulltext

Electronic Resource

The synthesis and characterization of poly(methylene terephthalate)Systematic name: Poly(oxymethyleneoxyterephthaloyl). (1988)

Cimecioglu, A. L. ; East, G. C. ; Morshed, M. ; [et al.]

Bognor Regis [u.a.] : Wiley-Blackwell

Journal of Polymer Science Part A: Polymer Chemistry 26 (1988), S. 2129-2139

add to mindlist on the mindlist

Details

ISSN: 0887-624X

Keywords: Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Poly(methylene terephthalate) (1GT) has been synthesized via the reaction of cesium or potassium terephthalates with dibromomethane or bromochloromethane in N-methylpyrrolidone at temperatures of 80-125°C. The polymerization was relatively slower with the latter substrate, though the potassium salt was found to be equally as efficient as its cesium counterpart with dibromomethane. The polymer is insoluble in all common polyester solvents, and its high molecular weight nature (DPn ≥ 25) was inferred from elemental analyses and its fiber forming capacity. Thermal analyses indicated that 1GT possesses poor thermal stability and decomposes rapidly during melting, the initial process being thought to be the splitting out of formaldehyde. 1GT polymers were shown to contain a homologous series of cyclic oligomers (from dimer to decamer); the two most predominant were tentatively identified as the cyclic trimer and tetramer. No change in the cyclization efficiency was observed when the potassium counterion was substituted for cesium with Br CH2 Br whereas a drastic reduction in the cyclic content was obtained using Br CH2 Cl (with Cs+). The two most important features of the polymerization are the insensitivity of the reaction to the stoichiometric equivalence of the reactants and the production of reasonably high molecular weights at low conversions. It is suspected that the polymerization might be occurring through an interfacial mechanism.

Additional Material: 5 Ill.