Loading...
  • polymers
  • Immobilising agents include layers of aluminium or gold, hydrophilic polymers, and polyacrylamide gels, or treatment with amines, aldehyde or epoxy. (wikipedia.org)
  • Transmission Electron Microscopy in combination with staining techniques, but also Scanning Electron Microscopy, Scanning probe microscopy are important tools to optimize the morphology of materials like polybutadiene-polystyrene polymers and many polymer blends. (wikipedia.org)
  • Liquid
  • Unlike other gels, it maintains the same consistency throughout its structure and is stable, which means it does not separate into sections of solid mass and those of more liquid mass. (wikipedia.org)
  • silica gel
  • For example, one of the most widely used silica gel grades in the former technique is mesh 230 - 400 (40 - 63 µm), while the latter technique typically requires mesh 70 - 230 (63 - 200 µm) silica gel. (wikipedia.org)
  • Other molecular sieves are used as desiccants (some examples include activated charcoal and silica gel). (wikipedia.org)
  • Silicon dioxide (used to make silica gel): 24 Å (2.4 nm) Mesoporous silica, 200-1000 Å (20-100 nm) Molecular sieves are often utilized in the petroleum industry, especially for drying gas streams. (wikipedia.org)
  • In contrast, silica gel can be regenerated by heating it in a regular oven to 120 °C (250 °F) for two hours. (wikipedia.org)
  • However, some types of silica gel will "pop" when exposed to enough water. (wikipedia.org)
  • Analytical Techniques
  • Restriction digests are also necessary for performing any of the following analytical techniques: RFLP - Restriction fragment length polymorphism AFLP - Amplified fragment length polymorphism STRP - Short tandem repeat polymorphism There are numerous types of restriction enzymes, each of which will cut DNA differently. (wikipedia.org)
  • Size
  • In addition, recent development in inertial microfluidics and other biomimetic separation techniques (such as cell margination) allow microfluidic cell separation from a complex sample (e.g. raw blood) at very high throughput (~1mL/min), by utilizing physical characteristics of cells (deformability, size, and others). (mit.edu)
  • Since none of the four nucleotide bases carry any charge, net charge becomes insignificant and size is the main factor affecting rate of diffusion through the gel. (wikipedia.org)
  • With size exclusion chromatography, there are short and well-defined separation times and narrow bands, which lead to good sensitivity. (wikipedia.org)
  • The most common detectors used for size exclusion chromatography include online methods similar to the bench methods used above. (wikipedia.org)
  • density
  • This lets clay particles connect in a chain and allows the gel to form at a low density. (wikipedia.org)
  • Producing a relatively high power for a given weight, the battery could be incorporated into microscope devices if the gel could be made at a low enough density. (wikipedia.org)
  • known
  • Unlike the lower concentrations where the arrangement of clay particles was continually in flux, the particles above 1% concentration locked into a stable structure which is known as equilbrium gel. (wikipedia.org)
  • Characterization
  • As such, many characterization techniques should ideally be linked to the desirable properties of the material such as strength, impermeability, thermal stability, and optical properties. (wikipedia.org)
  • secondary
  • Analytic techniques for the determination of molecular weight can be broken down into primary and secondary techniques based on whether or not standards are needed to calibrate the analytic instrument. (uc.edu)
  • Intrinsic viscosity is theoretically a primary technique, in that for the theta solvation conditions secondary standards are not necessary. (uc.edu)
  • differential
  • Other thermal analysis techniques are typically combinations of the basic techniques and include differential thermal analysis, thermomechanical analysis, dynamic mechanical thermal analysis, and dielectric thermal analysis. (wikipedia.org)
  • column
  • For silica column chromatography, this ratio lies within 20:1 to 100:1, depending on how close to each other the analyte components are being eluted. (wikipedia.org)
  • time
  • The difference with equilibrium gel is that it will not separate over time into two separate phase like all other gels. (wikipedia.org)
  • Disadvantages are, for example, that only a limited number of bands can be accommodated because the time scale of the chromatogram is short, and, in general, there must be a 10% difference in molecular mass to have a good resolution The technique was invented by Grant Henry Lathe and Colin R Ruthven, working at Queen Charlotte's Hospital, London. (wikipedia.org)
  • MLPA, however, is one of the only accurate, time-efficient techniques to detect genomic deletions and insertions (one or more entire exons), which are frequent causes of cancers such as hereditary non-polyposis colorectal cancer (HNPCC), breast, and ovarian cancer. (wikipedia.org)
  • latter technique
  • A further alternative is either low-angle light scattering, which uses a single low angle to determine the molar mass, or Right-Angle-Light Laser scattering in combination with a viscometer, although this latter technique does not give an absolute measure of molar mass but one relative to the structural model used. (wikipedia.org)
  • main
  • One of the main characteristics of Equilibrium gel as with soft matter is that it displays various mesocopic structures originating from a large number of internal degrees of freedoms of each molecule. (wikipedia.org)
  • generally
  • None of the primary techniques are used on a routine basis as they all involve a significant effort and generally yield only one moment of molecular weight. (uc.edu)
  • particles
  • Clay particles interact in an anisotropic way differing from the typical isotropic way of colloidal particles, which normally interact with all of their nearest neighbors when forming a gel. (wikipedia.org)
  • Spectroscopy
  • Spectroscopic techniques such as ultraviolet-visible spectroscopy, infrared spectroscopy, Raman spectroscopy, nuclear magnetic resonance spectroscopy, electron spin resonance spectroscopy, X-ray diffraction, and mass spectrometry are used to identify common functional groups. (wikipedia.org)
  • common
  • Some of the most common microscopy techniques used are X-ray diffraction, Transmission Electron Microscopy, Scanning Transmission Electron Microscopy, Scanning Electron Microscopy, and Atomic Force Microscopy. (wikipedia.org)
  • similar
  • Equilibrium gel is similar to any gel in the way that it is a colloid in which the disperse phase has combined with the dispersion medium to produce a semisolid material. (wikipedia.org)
  • molecules
  • Calcium imaging techniques take advantage of so-called calcium indicators, fluorescent molecules that can respond to the binding of Ca2+ ions by changing their fluorescence properties. (pearltrees.com)
  • The fundamental theory behind this technique is that salts, which are ionic, tend to be water-soluble while neutral molecules tend not to be. (wikipedia.org)
  • assay
  • The FDA has approved four variations of the LAL test: gel-clot, turbidimetric, colorimetric, and chromogenic assay. (wikipedia.org)
  • include
  • The most successful covalent binding techniques include binding via glutaraldehyde to amino groups and N-hydroxysuccinide esters. (wikipedia.org)
  • however
  • MLPA, however, is one of the only accurate, time-efficient techniques to detect genomic deletions and insertions (one or more entire exons), which are frequent causes of cancers such as hereditary non-polyposis colorectal cancer (HNPCC), breast, and ovarian cancer. (wikipedia.org)
  • medium
  • Calcium imaging is a scientific technique usually carried out in research which is designed to show the calcium (Ca2+) status of a cell, tissue or medium. (pearltrees.com)
  • process
  • The next year, the Philippine Research Reactor at the PNRI was chosen by the IAEA to be the training platform to demonstrate the decommissioning process technique under the Research Reactor Decommissioning Demonstration Project (R2D2P). (wikipedia.org)
  • Science
  • This is a whole-cell current clamp recording of a neuron firing due to it being depolarized by current injection Definition and scope[edit] Classical electrophysiological techniques[edit] Electrophysiology is the science and branch of physiology that pertains to the flow of ions in biological tissues and, in particular, to the electrical recording techniques that enable the measurement of this flow. (pearltrees.com)
  • PAGE
  • The three samples are mixed and loaded onto IEF (isolectric focusing chromatography) for first dimension and the strip is transferred to a SDS PAGE. (wikipedia.org)