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  • Ion pairing of nucleotides with surfactants for enhanced sensitivity in liquid matrix assisted secondary ion mass spectrometry

    Creator:
    Pavlovich, James Gilbert
    Abstract:
    In particle induced desorption-ionization mass spectrometry the strength of an analyte's signal under a given set of bombardment conditions is usually considered to be representative of the analytes relative surface activity. This rationale is generally used to explain differences in the technique's sensitivity between and within various classes of compound....
    Resource Type:
    Dissertation
    Full Text:
    counterions 23 1.3.3. Surface renewal 24 1.3.4. Suppression effects 26 1.3.5. Surface chemistry and

  • Molecular origins of surfactant-mediated stabilization of protein

    Creator:
    Lee, Hyo Jin
    Abstract:
    Nonionic surfactants are commonly used to stabilize proteins during upstream and downstream processing and drug formulation. Surfactants stabilize the proteins through two major mechanisms: (i) their preferential location at nearby interfaces, in this way precluding protein adsorption; and/or (ii) their association with protein into "complexes" that prevent proteins from interacting...
    Resource Type:
    Dissertation
    Full Text:
    ]. 16 The extent of aggregation also depends upon the surface chemistry of the container in which