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 10 of 10 for “"Colorimetric Sensing"”.
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Nanostructured Materials Prepared With Ultrasound
… dyes are synthesized by USP and utilized in colorimetric sensing arrays for the identification of aliphatic amines. Further usefulness of USP is demonstrated in quantum dot synthesis. Previously, using organic precursor solutions containing high boiling point liquids, highly luminescent CdSe …
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Development of label-free colorimetric plasmonic sensor for biomedical applications
… as quantitative measurement of such markers. Colorimetric sensing, a method that enables the detection of target analytes via ‘color change’, lays the foundation of a user-friendly, economical and most of all, it’s accessibility to draw inference for the detection of notorious critical …
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Molecular Probes for Biologically Important Molecules: A Study of Thiourea, Hydroxyl radical, Peroxynitrite and Hypochlorous acid
… naphthalene (compound 1) as a fluoride sensing molecule. Compound 1 showed a remarkable 40 fold enhancement in fluorescence with 5 eq of fluoride addition. Compound 1 also showed possibility of visual colorimetric sensing with fluoride. Free radical mediated oxidations of biomolecules …
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Design and characterization of colorimetric plasmonic nanostructures for imaging and sensing
… optical properties of plasmons have shown better sensing limits than the conventional ones by amplifying optical signals as well as detecting sensitive plasmon resonance shift upon dielectric property change on the sensing surface. In this dissertation, a series of experiments are undertaken using …
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Colorimetric sensor arrays for the detection of aqueous and gaseous analytes
… concerning the development of artificial sensing devices; most notably optoelectronic tongues and noses. Utilizing previous research on how the mammalian gustatory and olfactory systems operate, significant progress in mimicking these systems has been realized. The turning point in this …
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Development of novel series and parallel sensing system based on nanostructured surface enhanced Raman scattering substrate for biomedical application
… in different areas, especially biological sensing techniques. One of the promising biological sensing applications by surface resonance polariton is surface enhanced Raman spectroscopy (SERS), which significantly reinforces the feeble signal of traditional Raman scattering by at least 104 …
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Nanoplasmonics and silicon nanophotonics devices for sensing applications
… global security to healthcare and environmental sensing. This thesis studies silicon-based nanophotonics and noble metal based nanoplasmonics devices, and explores their utilities for energy, sensing, and photonics applications. Three dimensional (3D) sub-wavelength tapered periodic hole array …
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Portable electrochemical and plasmonic biosensors for biomedical application
Portable sensing for point-of-care (POC) has attracted a lot of attention in these years and has been developed in a wide variety for clinical and environmental applications. The idea of POC comes from the advances in portable smart electronic devices and micro-fluid systems which can be integrated …
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Applications of a hand-held optoelectronic nose: security screening, medical diagnosis and food inspection
… monitoring of general population. The use of colorimetric sensor arrays has proven to be a fast, convenient and effective method for liquid and gas analysis of relevant analytes where the specificity derives from the pattern of response from cross-reactive and chemoresponsive sensor sets. …
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Bioenabled Synthesis of Anisotropic Gold and Silver Nanoparticles
… suited for biomedical applications such as biosensing, bioimaging, diagnostics and therapeutics. Although a rich variety of surfactant-assisted colloidal routes have been developed to prepare well-defined APMNs, biomedical applications necessitate tedious and rigorous purification processes for …