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Showing 1 to 20 of 483 for “"Immobilized"”.
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SENSORS BASED ON IMMOBILIZED FLUOROGENIC REAGENTS
<p>Sensors based on the fluorescence of immobilized fluorogenic reagents are prepared and their characteristics are defined. The fluorogenic reagent is chemically immobilized on a solid support and attached to the common end of a bifurcated fiber optic bundle. Fluorescence is excited through one …
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Immobilized Luminol as a Chemiluminescent Reagent
… in this thesis investigates the first use of immobilized luminol chemiluminescence (CL) reagents in the flow injection analysis of hydrogen peroxide. The research reported here has progressed in two principal areas: first, the method development and characterization of immobilized luminol CL …
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Modification of soybean proteins by immobilized proteases
Trypsin and alpha-chymotrypsin were immobilized on nylon pellets or porous glass by covalent methods to change molecular properties and functional characteristics of soybean proteins. The amount of trypsin immobilized on nylon pellets using the glutaraldehyde method was high when the pellets were …
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New immobilized antimicrobial polyethylenimines : synthesis and properties
Surfaces modified with immobilized N-alkyl-polyethylenimines (N-alkyl-PEls) containing various alkyl groups were synthesized and tested against various pathogenic human influenza viruses to establish structure-to-virucidal activity relationships. Various physical-chemical properties of each surface …
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Development and characterization of an immobilized lymphokine membrane
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1993.
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The effects of testosterone propionate on hindlimb immobilized rats
… protein synthesis in the skeletal muscle of an immobilized limb, testosterone could effectively delay the rapid atrophy so often seen.To examine the effects of testosterone on skeletal muscle atrophy during limb immobilization, forty albino, male rats were randomly divided into four groups of …
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Immobilized liquid membranes for facilitated transport and gas separation
… subject of considerable research for many years. Immobilized liquid membranes (ILMs) are an important class of facilitated transport membranes. Despite their potential to provide superior performance, they could not achieve commercial success so far due to their instability. Recent research …
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Studies of immobilized homogeneous metal catalysts on silica supports
… similar to its homogeneous analog. However, the immobilized catalyst offered additional advantages of recycleability, extended stability, and increased resistance to deactivation.</p>
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Investigation of microbicidal activity of surface-immobilized hydrophobic polycations
… ultraviolet light. The resultant, covalently-immobilized, Nalkyl polyethylenimine (PEI) demonstrates complete bactericidal activity against S. aureus and E. coli (i.e., representative Gram-positive and Gram-negative bacteria, respectively). In addition, by utilizing light to activate the …
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Fundamentals of biopolymer accumulation in immobilized acinetobacter calcoaceticus system
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Applied Biological Sciences, 1988.
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Study of vapor/gas permeation using thin immobilized liquid membrane
… of vapor and gases from a gas stream, a thin immobilized liquid membrane (ILM) has been studied. Low vapor pressure liquid solvent/solutions were immobilized in part of the micropores of a hydrophilic, hydrophobic or ceramic hollow fiber substrate. To prepare such thin ILMs, three approaches …
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Rna-Dna Hybridizations With Dna Immobilized on a Membrane Filter
Made available in DSpace on 2014-12-09T22:04:14Z (GMT). No. of bitstreams: 1 6612335.pdf: 2897014 bytes, checksum: b2309dd0e03a77416d5f56559de7bbeb (MD5) Previous issue date: 1966
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2,3-Butanediol production from whey permeate using immobilized cell systems
… production from whey permeate by using immobilized cell systems. Two types of immobilized cell systems were developed for substrate hydrolysis and the fermentation: a $\beta$-galactosidase-active biocatalyst consisting of non-viable cells of Kluyveromyces fragilis and immobilized cells …
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Photosynthetic regeneration of ATP using native and immobilized bacterial chromatophores.
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Nutrition and Food Science, 1976
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A Compressed Sensing Approach to Detect Immobilized Nanoparticles Using Superparamagnetic Relaxometry
<p>Superparamagnetic relaxometry (SPMR) is an emerging technology that leverages the unique properties of biologically targeted superparamagnetic iron oxide nanoparticles to detect cancer. The use of ultra-sensitive sensors enables SPMR to detect tumors ten times smaller than current imaging …
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The removal of perchlorate from waters by a membrane-immobilized biofilm
… investigated the feasibility of using a membrane-immobilized biofilm reactor to remove perchlorate from waters. Perchlorate (ClO4 -) is easily reduced under anaerobic conditions to harmless chloride (Cl-). In this system, the perchlorate-contaminated water is physically separated from the biofilm …
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Endotoxin removal from protein solutions by immobilized metal ion affinity chromatography
… for endotoxin removal from protein solutions, immobilized metal (ion) affinity chromatography (IMAC) has been developed in this study. Fe^{3+} was charged to a chelating gel that contains iminodiacetic acid (IDA). The IDA- Fe^{3+} IMAC column was exploited to remove endotoxin from protein …
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Characterization of Newly Immobilized Nitrogen-15 in a Typical Illinois Mollisol
… N into organic forms. In time, part of the immobilized N is converted into biologically resistant humus forms. Attempts to characterize the stabilized N have been unsuccessful, partly because the procedures normally used to fractionate soil humus make little distinction between N in the …
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Characterization of penicillin production by an immobilized biofilm of Penicillium chrysogenum
A stable biofilm of Penicillium chrysogenum in a slab geometry was characterized with respect to penicillin production at various sugar and oxygen concentrations by studies using a novel bench scale bioreactor. The biofilm was submerged in aerated liquid media, mounted vertically in a tube and …
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