• They all share the trait that they are a three-dimensional arrangement of intertwined strands, which produces holes (or pores) through the gel matrix. (encyclopedia.com)
  • Intact DNA is so large that it cannot move through the pores of a gel (although the technique of pulsed field electrophoresis does allow very large pieces of DNA to be examined). (encyclopedia.com)
  • The size of the pores in the gel matrix can be varied by using different concentrations of agarose. (flinnsci.com)
  • Hot samples withdrew at different incubation times are cooled down to form gels. (cnrs.fr)
  • Increasing the incubation time of the agar sol leads to gels with a much coarser microstructure made of aggregated polysaccharides (see image below). (cnrs.fr)
  • The latter gels are all the more softer and ductile that the incubation time of the agar sol is larger. (cnrs.fr)
  • Finally, the research team has identified a critical incubation time, which is a function of the type of agar, beyond which the gel mechanical properties are drastically modified. (cnrs.fr)
  • The present study provides a good estimate of the effect of prolonged heating on the properties of agar gels and suggests that one can use the incubation time of agar sol to tune the structural and mechanical properties of agar gels to reach specific desired properties. (cnrs.fr)
  • left) Cryo-SEM images of gels prepared from samples drawn after different incubation times (1hour, 3 days and 5 days). (cnrs.fr)
  • Increasing incubation times at 80°C of the agar sol leads to gels of coarser microstructure. (cnrs.fr)
  • right) Stress-strain curves determined by indentation of agar gels prepared after different incubation times ranging from 1h to 5 days. (cnrs.fr)
  • Beyond 2 days of incubation of the agar solution at 80°C, the gels formed later on display lower elastic modulus and yield stress, which value decrease for increasing incubation times. (cnrs.fr)
  • Since many scientific applications require incubation at temperatures close to human body temperature (37 °C), agar is more appropriate than other solidifying agents that melt at this temperature, such as gelatin. (worldebooklibrary.org)
  • Malignancy Chemistry/Correlate clinical and laboratory data/ and rheumatoid arthritis display polyclonal Electrophoresis/2 gammopathies classified as confirmed inflammatory or delayed reply patterns buy discount malegra fxt plus 160mg on line erectile dysfunction while drunk. (nippon-kan.org)
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  • A solution of agar is maintained at 80°C over several days in the laboratory. (cnrs.fr)
  • CSF electrophoresis is the single most reliable laboratory test in multiple sclerosis and deserves incorporation into the diagnostic criteria for the disease. (ox.ac.uk)
  • Agar was first used in microbiology in 1882 by the German microbiologist Walther Hesse , an assistant working in Robert Koch 's laboratory, on the suggestion of his wife Angelina Fannie Eilshemius Hesse. (worldebooklibrary.org)
  • Antimicrobial susceptibility was tested for 13 antimicrobial agents by using the agar dilution method ( 6 ). (cdc.gov)