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Now showing items 11-20 of 77
Fabrication of type-I indium-based near-infrared emitting quantum dots for biological imaging applications
(University of the Western Cape, 2013)
Semiconductor nanocrystals or quantum dots (QDs) are fluorescent nanometer-sized particles
which have physical dimensions that are smaller than the excitonic Bohr radius, large surface
area-to-volume ratios, broad ...
Quantum dot sensitized estrogen receptor alpha-recombinant protein electrochemical biosensor for 17-beta estradiol
(University of the Western Cape, 2016)
Estrogens play an extraordinary role in the endocrine system regulation through the stimulation and regulation of endocrine pathways. 17β-estradiol is one of the final metabolites in estrogen regulation by hydroxylase ...
The development of graphene oxide sheet- and polyanilino-immunosensor systems for lipoarabinomannan (LAM) tuberculosis biomarker
(University of the Western Cape, 2017)
Tuberculosis (TB) is an infectious disease with adverse effect on a global scale. The disease is one of the major causes of death in sub-Saharan Africa. Nearly 70% of TB-infected persons are co-infected by the human ...
Development of Schiff base electrochemical sensors for the evaluation of polycyclic aromatic hydrocarbons in aqueous medium
(University of the Western Cape, 2017)
A novel monomer (N,N'-Bis-(1H-pyrrol-2-ylmethylene)-benzene-1,2-diamine-BPPD) was
derived from the condensation reaction between o-phenylenediamine and a pyrrole derivative. The
monomer was polymerized electrochemically ...
Immunosensors developed on clathrate platform compounds
(University of the Western Cape, 2013)
Organic noncyclic compounds were used in the development of immunosensor for rapid fish species detection. Flourene derivatives show unique chemical and physical properties because they contain a rigid planar biphenyl unit, ...
Electrochemical and optical modulation of selenide and telluride ternary alloy quantum dots genosensors
(University of the Western Cape, 2012)
Electroanalytical and optical properties of nanoscale materials are very important for biosensing applications as well as for understanding the unique one-dimensional carrier transport mechanism. One-dimensional semiconductor ...
Synthesis and characterization of pt-sn/c cathode catalysts via polyol reduction method for use in direct methanol fuel cell
(2013)
Direct methanol fuel cells (DMFCs) are attractive power sources as they offer high conversion efficiencies with low or no pollution. One of the major advantages DMFCs has over PEMFCs is that methanol is a liquid and can ...
The chemical and biological characterization of South African helichrysum species
(University of the Western Cape, 2015)
South Africa has immensely rich natural flora diversity with more than 20 000 species of higherplants. Asteraceae is one of the biggest families of flowering plants with about 246 genera and 2,300 species in southern Africa. ...
Polyamic acid composites for multiiple sensing applications in complex sample matrices
(2013)
Polyamic acid-polypyrrole (PAA/PPy) composite films were prepared and characterised for the use as conducting platforms in the design of biosensor systems. The thin films were synthesised by electrochemical method from a ...
Development of platino-iridium/ruthenium telluride nanoalloy electrode systems for possible application in ammonia fuel cell
(University of the Western Cape, 2015)
South Africa is undergoing a serious consideration of hydrogen economy in an effort to develop safe clean and reliable alternative energy sources for fossil fuels. Ammonia is one of the promising candidates due to its low ...