Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Colorimetric Assays"”.
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Investigation of oxidative stress responses in Amaranthus with colorimetric assays
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-12-01
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Development of smartphone hyphenated colorimetric, plasmonic and electrochemical biosensors for food contaminant detection
… potential of smartphone based image analyses of colorimetric assays was thoroughly assessed. In chapter seven an electrochemical immunoassay was developed for domoic acid detection in shellfish. Here the focus was on the performance of screen printed electrodes that were modified with various …
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Peroxidase-mimicking nanomaterials for the detection of mercury (II) ions in water matrices
… analysis of water samples. Nanotechnology and colorimetric-based systems which utilise the plasmonic and catalytic properties of AuNPs have attracted much attention in recent years, due to benefits such as ease of operation, low-cost and naked-eye detection. However, nanomaterials suffer from …
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Development of a Digital Microfluidic Lab-on-a-chip for Analysis of Atmospheric Inorganic Ions
… O-Phthaldialdehyde (OPA), and nitrate reductase colorimetric assays were initially developed using bench-top spectrophotometry for the analytical detection of sulfate, ammonium, and nitrate ions. These assays were subsequently adapted for use on the LoC and characterized in terms sensitivity, …
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An investigation of the biology and chemistry of the Chinese medicinal plant, Amorphophallus konjac
… (3,5-DNS), phenol-sulphuric acid and enzymatic colorimetric assays; indicated that the 3,5-DNS colorimetric assay was the most reproducible and accurate method, with a linear correlation coefficient of 0.997 and recoveries between 97% and 103% across three spiking levels of starch. In summary, …
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Interaction of skin cells with skin microbiota
… 10662 and PAO1 was investigated using a range of colorimetric assays and RT-qPCR. Also, the effect of S. epidermidis supernatant on the viability, migration, and proliferation of the human skin keratinocytes (HaCaT cell line) was investigated using scratch and MTT assays. Furthermore, the …
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A Sensor for Metabolic Profiling of Traumatic Brain Injury
… and are then analysed via a series of colorimetric assays which are carried out using a commercially-available analyser. The use of this analyser presents a number of drawbacks which have prevented the widespread use of metabolic profiling in the management of TBI. For example, the …
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An investigation towards a conjugate vaccine against Streptococcus pneumoniae serotype 19A
… composition of the polysaccharides determined by colorimetric assays was confirmed by hydrolysis and monomeric analysis using gas chromatography/mass spectroscopy (GC/MS) of the methyl glycoside derivatives. Use of 1H, 13C and 31P nuclear magnetic resonance (NMR) experiments confirmed the …
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Polystyrene coated iron-platinum drug delivery platforms for theranostics
… in vitro through the use of various cell culture assays.9/11 The inhibitory concentrations on various cells lines were reported through the use of MTT colorimetric assays.12 Drug combinations were also performed and analyzed using CompuSyn to determine the existence of any synergistic effects.
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The effects of magnesium treatment on short-term changes in heart rate variability, ventricular function and lipid profile in streptozotocin-induced diabetic rats
… plasma lipid- and Mg²⁺ levels were measured by colorimetric assays. RESULTS: Diabetes reduced heart rate and increased the low-frequency (LF)/high-frequency (HF) power ratio. Mg²⁺ treatment prevented theses diabetes-induced changes in heart rate and in the low-frequency (LF)/high-frequency (HF) …
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Quantification and alleviation of the antinutritional effects of phytate on poultry
… phytate content can be measured using simple colorimetric assays. Examination of in vitro digestion models and subsequent correlation to in vivo studies indicate that exposing samples to conditions that mimic the gastrointestinal environment is the most accurate way to predict phytate …
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Biochemical markers of hypertension and chronic renal failure in a Gulf Arab population of the United Arab Emirates
… and lipoproteins were measured by standard colorimetric assays. With regard to hypertension, a major finding of this study is related to the levels of ET-1 in Etniratis with untreated essential hypertension. These were significantly (p < 0.01) higher in hypertensives (mean 10.1 ± 1.0 pmol ') …
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Materials and Nanostructured Coatings for Soft Tissue Regeneration
… analysis, increase in surface wettability and colorimetric assays demonstrated the successful surface modification of PUR films and scaffolds. Functionalized films were characterized by an optimal hydrophylicity (65°) and peptide density (3.2 and 1.7 nmol/mm2) for cell adhesion promotion. …