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.
Results
Showing 1 to 13 of 13 for “"thermo-sensitive"”.
-
Introduction of a thermo-sensitive non-polar species into polyelectrolyte multilayer capsules for drug delivery
… acrylamide), (PNIPAM) is known to be a thermo-sensitive polymer that has a Lower Critical Solution Temperature (LCST) around 32oC; above this temperature PNIPAM is insoluble in water and collapses. It is also known that with the addition of salt, the LCST decreases. This work shows …
-
The preparation and characterization of thermo-sensitive colored hydrogel film and surfactant-free porous polystyrene three-dimensional network.
… polymer hydrogel films. In this thesis colored thermo-sensitive poly(N-isopropylacrylamide) (PNIPAAm) hydrogel film was prepared by firstly synthesizing polymer latex and secondarily crosslinking the nanoparticles and casting the polymers onto glass. The shape-memory effect has been observed …
-
N-Vinylcaprolactam based Bulk and Microgels: Synthesis, Structural Formation and Characterization by Dynamic Light Scattering
… in the swollen, shrunken and aggregated states. Thermo-sensitive microgels based on N-vinylcaprolactam and acetoacetoxyethyl methacrylate were prepared under surfactant free conditions. The presence of internal part with low thermo-sensitivity and highly thermo-sensitive outer part of the …
-
The development of novel smart wound dressings based on colloidal microgels and cotton fabric
… (NIPAM) monomer. Poly(NIPAM) is a thermo sensitive polymer which undergoes a conformational transition close to the human skin temperature. Poly(NIPAM) was co-polymerized with hydrophobic butyl acrylate (BA) to provide a more favourable environment for drug molecules to partition …
-
Controlling the interfacial behaviour of colloidal microgel systems
… novel co-polymer microgels and all exhibited a thermo-sensitive volume phase transition. Key properties of the microgels, i.e. size, electrophoretic mobility and volume phase transition temperature (VPTT), were determined by dynamic light scattering (DLS), laser Doppler electrophoresis, …
-
Translational Repression of G3BP in Cancer and Germ Cells Suppresses Stress Granules and Enhances Stress Tolerance
… to maintain mammalian spermatogenesis, a highly thermo-sensitive process that must be preserved throughout reproductive life. These results demonstrate a mechanism that allows for tissue-specific resistance against stress and could aid in the development of male fertility therapies.
-
"Smart" Hydrogels based on Trishydrophilic Triblock Terpolymers
… put on ABC triblock terpolymers composed of a pH-sensitive A block, a water soluble B block and a thermo-sensitive or multi-responsive C block. This concept was used for the construction of hydrogels responding independently to pH, temperature, and UV light. It was further applied to the formation …
-
Engineering composite particles to overcome the poor pharmaceutical performance of paracetamol
… an appropriate process for hygroscopic and thermo–sensitive materials. However, it is unfortunate that only less than ~20% of pharmaceutical powders can be compressed into tablets by direct compression due to their inherent poor functional properties required for direct compression. The …
-
A link between c. Elegans morphogenesis and mrna export
… (unattached pharynx) phenotype. We discovered a thermo-sensitive t2160 mutant allele of nuclear export 1, nxf-1. nxf-1/TAP encodes a protein that is required for mRNA export from the nucleus to the cytoplasm. To better understand the role of NXF-1 in C. elegans embryonic morphogenesis, we …
-
Investigation of mesophilic Aeromonas: response to hydrogen peroxide and role in false-positive Colilert reaction.
… Of the species studied, A. sobria was most sensitive, whereas A. caviae and A. hydrophila displayed similar responses to oxidative stress. The hypersensitivity of A. sobria did not impair the adaptive response of the organism. During our investigations, stationary phase Aeromonas cells have …
-
Intelligent Nano/Microgels for Cell Scaffold and Drug Delivery System
… microgels, which constructed by the thermo-driven gelation of the colloidal dispersion of poly(N-isopropylacrylamide-co-acrylamide) poly(NIPAM-co-AAm) microgels (Chapter 3). Such microgels exhibit a reversible and continuous volume transition in water with volume phase transition …
-
Sex Determination And Differentiation In The Common Snapping Turtle - A Reptile With Temperature-Dependent Sex Determination
… development is not known in any species. Furthermore, it is well established that sex steroid hormones, androgens and estrogens, are important for sex determination and differentiation in TSD species. Yet, the role of androgens in these processes is not well understood. This dissertation …
-
Intentional and Unintentional Light Emission Diode in Power Electronics applications
… and regulations concerning currents harmonic. Furthermore, the whole lighting system must meet the standards. In this perspective, a sufficient power factor (PF) must be guarantee thanks to a proper design of the lighting system, especially when a very huge number of lamps are used. Hence, the …