https://novaprd-lb.newcastle.edu.au/vital/access/manager/Index ${session.getAttribute("locale")} 5 https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:37274 Wed 16 Sep 2020 16:37:20 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:30252 N-linked sialylated glycoproteins in rat epididymal sperm and investigate whether they are regulated during epididymal transit. Sialylated glycopeptides from caput, corpus, and cauda spermatozoa were enriched using titanium dioxide beads. Bound N-linked glycopeptides were released by enzymatic deglycosylation using PNGase F and then analyzed by liquid chromatography tandem-mass spectrometry. A total of 92 unique N-linked sialylated glycopeptides were identified from 65 different proteins. These included members of the disintegrin and metalloproteinase domain-containing protein family (ADAM), Basigin, and Testis-expressed protein 101 (TEX101). Remarkably, label-free quantification showed that more than half of these peptides (48/92) were regulated during epididymal transit. Of interest, the protein TEX101 exhibited PNGase F-resistant deglycosylation under the conditions used in this study. The results from this study showed that changes in the N-linked sialoglycoprotein profile is a major hallmark of sperm maturation in rats.]]> Wed 11 Apr 2018 17:21:10 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:15823 Wed 11 Apr 2018 15:42:37 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:38128 Wed 04 Aug 2021 15:08:22 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:34939 a- and c-directions. The raw data for the heat current autocorrelation function is analysed to determine the structure of the lattice thermal conductivity. It is revealed that the lattice thermal conductivity of the TiO₂ polymorphs can be decomposed into three contributions due to the acoustic short-range and long-range phonon and optical phonon modes. These three contributions can be presented in the form of simple kinetic formulae consisting of the products of the heat capacity, the square of the average phonon velocity and the average relaxation time of the acoustic short- and long-range phonon and optical phonon modes. In particular, it is shown that the average phonon velocities of the acoustic short- and long-range phonon and optical phonon modes are approximately equal to each other and can be expressed through the second-order fluctuations of the heat current vector. The effects of different simulation cell sizes at different temperatures on the lattice thermal conductivity are also investigated. Finally, the results from this work are compared with the experimental data and good agreement is found.]]> Tue 13 Apr 2021 09:30:53 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:12876 Tue 11 Dec 2018 15:24:20 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:34742 2-based photocatalysts is continuing and, in particular, evolving a new strategy is an important aspect in this regard. In general, much effort has been devoted to the anatase TiO₂ modifications, despite there being only a few recent studies on rutile TiO₂ (rTiO₂). To the best of our knowledge, studies on the preparation and characterization of the photocatalysts based on the intentional inclusion of graphene (G) into rTiO₂ nanostructures have not been reported yet. Herein, we develop a new type of TiO₂-based photocatalyst comprising of G included pure rTiO₂ nanowire (abbreviated as rTiO₂(G) NW) with enhanced visible light absorption capability. To prepare rTiO₂(G) NW, the G incorporated titanate electrospun fibers were obtained by electrospinning and subsequently heat treated at various temperatures (500 to 800 °C). Electrospinning conditions were optimized for producing good quality rTiO₂(G) NW. The rTiO₂(G) NW and their corresponding samples were characterized by appropriate techniques such as X-ray diffraction (XRD), scanning electron microscopy, high-resolution transmission electron microscopy and UV-vis diffuse reflectance spectroscopy to ascertain their material characteristics. XRD results show that the lattice strain occurs upon inclusion of G. We present here the first observation of an apparent bandgap lowering because of the G inclusion into TiO₂ NW. While anatase TiO2 NW exhibited poor visible light photocatalysis towards NOx removal, the rTiO₂(G) NW photocatalyst witnessed a significantly enhanced (~67%) photocatalytic performance as compared to anatase TiO₂(G) NW. We concluded that the inclusion of G into rTiO₂ nanostructures enhances the visible light photoactivity. A plausible mechanism for photocatalysis is suggested.]]> Tue 03 Sep 2019 18:02:02 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:40482 Thu 14 Jul 2022 08:46:09 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:38166 2 as its nanoporous semiconductor. This model is based on fractional diffusion equations, taking into consideration the random walk network of TiO₂ . Finally, the paper presents numerical solutions of the fractional diffusion model to demonstrate the effect of the fractal geometry of TiO₂ on the fundamental performance parameters of dye-sensitized solar cells, such as the short-circuit current density, open-circuit voltage and efficiency.]]> Thu 05 Aug 2021 14:34:00 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:19261 Sat 24 Mar 2018 08:06:38 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:17528 Sat 24 Mar 2018 08:03:55 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:21155 Sat 24 Mar 2018 08:00:18 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:19568 Sat 24 Mar 2018 07:58:17 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:19773 Sat 24 Mar 2018 07:54:26 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:25432 Sat 24 Mar 2018 07:31:54 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:3313 Sat 24 Mar 2018 07:23:21 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:50871 Mon 29 Jan 2024 18:25:16 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:40138 2). In this paper, we formulate a continuum model for the interaction between the dye molecule Tris(2,2′-bipyridyl)ruthenium(II) (Ru(bpy)²₃⁺) and titanium dioxide (TiO₂) semiconductor. We obtain the equilibrium position at the minimum energy position between the dye molecules and between the dye and TiO₂ nanoporous structure. Our main outcome is an analytical expression for the energy of the two molecules as a function of their sizes. We also show that the interaction energy obtained using the continuum model is in close agreement with molecular dynamics simulations.]]> Mon 29 Jan 2024 17:45:34 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:37934 Mon 05 Jul 2021 13:49:57 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:45570 2 nano particles (NPs) were synthesized by precipitation using high purity of TiCl₄ and the surface was modified by hydrothermal treatment. The NPs were characterized using X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Analysis (EDX), Transmission electron microscopy (TEM), Thermo-Gravimetric Analysis (TGA), X-ray Photoelectron Spectroscopy (XPS) and Brunauer–Emmet–Teller (BET) surface area techniques. The synthesized NPs were utilized for removal of methylene blue (MB) dye from wastewater. The effect of various experimental parameters such as pH, adsorbent dosage, concentration of dye, photocatalyst concentration on the degradation efficiency of the effluent has been studied. The equilibrium studies for adsorption were done using Langmuir and Freundlich isotherms and better agreement was attained with the Langmuir model. The maximum adsorption capacity () was calculated as 88.1057 mg/g using Langmuir equation. The kinetic parameters displayed that MB adsorption onto the NPs followed pseudo-second-order kinetics model. In this paper, removal efficiencies of three different techniques photocatalysis, adsorption and electrolysis treatments were compared for methylene blue abatement using surface modified Nps. The results indicated that, photocatalytic and adsorption methods showed 1 and 60.70 percent of removal of dye at chosen higher initial dye concentrations of 25 mg/L and 50 mg/L respectively, whereas electrolysis methods showed 94.95 percent removal of dye even at higher initial concentration of dye (50 mg/L). Electrolysis method seems to be more superior, possibly because of continuous flow of electric current through conductive electrode surface which generates the negative charges and these charges are capable of degrading the dye into constituent products more effectively than the other two methods. Mechanisms for removal/degradation dye from wastewater using NPs for all the above three methods has been predicted.]]> Fri 04 Nov 2022 14:46:03 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/manager/Repository/uon:36758 Fri 03 Jul 2020 11:25:43 AEST ]]>