Designing polymer additives to control breakup of jets and impacting drops. Current agricultural spraying of pesticides is inefficient, causing serious environmental contamination. The project aims to design polymeric additives to control the fluid dynamics of spraying so that drops reach, and then adhere to their target leaf surfaces.
Enabling the design of superior healthy snack foods and beverages through innovative assessment of oral processing and mucosal film interactions. Reducing sugar and fat in foods generally leads to products that are perceived as less flavoursome and appealing. A significant contributor to this is the interaction of foods and beverages with oral mucosal substrates, which play a key role in perceptual processes that drive unacceptable mouthfeel sensations. This project seeks to develop and use oral ....Enabling the design of superior healthy snack foods and beverages through innovative assessment of oral processing and mucosal film interactions. Reducing sugar and fat in foods generally leads to products that are perceived as less flavoursome and appealing. A significant contributor to this is the interaction of foods and beverages with oral mucosal substrates, which play a key role in perceptual processes that drive unacceptable mouthfeel sensations. This project seeks to develop and use oral mimetic substrates to permit objective and quantified rheological and tribological responses, imitating the underlying physics occurring during food oral processing that drive dynamic sensory responses. The project aims to enable a mechanism-based approach to minimise the amounts of fat, salt and sugar required for sensory properties that meet consumer expectations.Read moreRead less
Food structure design. Food structure design. This project aims to use fundamental studies in multi-scale rheology and biotribology, surface sciences, soft matter physics and protein chemistry to develop new measurement capabilities and knowledge for rational food structure design. This research is intended to enable researchers and industry to quantify how oral processing (including saliva) transforms food during consumption, and to provide new instrumental measurements and know-how that assist ....Food structure design. Food structure design. This project aims to use fundamental studies in multi-scale rheology and biotribology, surface sciences, soft matter physics and protein chemistry to develop new measurement capabilities and knowledge for rational food structure design. This research is intended to enable researchers and industry to quantify how oral processing (including saliva) transforms food during consumption, and to provide new instrumental measurements and know-how that assists in defining sensory percepts in dairy foods and beverages such as creaminess in full, reduced or non-fat systems and grittiness in high protein systems.Read moreRead less
Engineering biomimetic lubrication with mucin. Engineering coatings for water to be an effective lubricant is a significant challenge. The project seeks to emulate how nature builds highly lubricating water-rich polymer films on biological surfaces. This is intended to be achieved by directing the self-assembly of mucin macromolecules onto polymer brushes attached to a substrate, and then cross-linking the constituents to obtain a hydrated gel-like lubricating coating. This research is expected ....Engineering biomimetic lubrication with mucin. Engineering coatings for water to be an effective lubricant is a significant challenge. The project seeks to emulate how nature builds highly lubricating water-rich polymer films on biological surfaces. This is intended to be achieved by directing the self-assembly of mucin macromolecules onto polymer brushes attached to a substrate, and then cross-linking the constituents to obtain a hydrated gel-like lubricating coating. This research is expected to provide new insights on the mechanisms by which mucin-rich fluids lubricate and protect biosurfaces, which is important to human health, nutrition and well-being. It may also lead to new discoveries for engineering surface coatings for biomaterials and nanomaterials.Read moreRead less
Optical tweezers as a micro-rheological probe of soft surfaces. Biomembranes are more than soft containers - their dynamic flexibility plays an important role in cell function, but measurements of mechanical properties of soft surfaces are non-existent. This project develops and applies a new optical tweezers method to measure the flexibility of membranes and its effects upon the friction of nearby particles.
Biosolid flow, separation and activity in anaerobic lagoons. This project aims to develop a fundamental model of the complex, non-steady state flow behaviour in anaerobic lagoons. The project will develop new operating procedures and designs for large municipal, industrial and agricultural anaerobic lagoons. This will improve the efficiency of anaerobic digestion and reduce wastewater treatment costs, as well as increase renewable and sustainable biogas production. The intended outcome is a va ....Biosolid flow, separation and activity in anaerobic lagoons. This project aims to develop a fundamental model of the complex, non-steady state flow behaviour in anaerobic lagoons. The project will develop new operating procedures and designs for large municipal, industrial and agricultural anaerobic lagoons. This will improve the efficiency of anaerobic digestion and reduce wastewater treatment costs, as well as increase renewable and sustainable biogas production. The intended outcome is a validated 3D model that captures the physical and biological complexities of anaerobic lagoons. This will impact the design and operation of partner organisation lagoons, reducing capital and operating costs and improving biogas production.Read moreRead less
It’s a fine line: analytical and experimental optimisation of drawing metal-in-dielectric nanowire composites to manufacture engineered metamaterials. Exploitation of ‘smart materials’ is a major opportunity for 21st century Australian manufacturing if cost effective bulk production is available. Metamaterials are ideal building blocks for such new-age materials, being dielectric/metal composites structured on sub-wavelength dimensions, offering diverse properties unavailable in natural material ....It’s a fine line: analytical and experimental optimisation of drawing metal-in-dielectric nanowire composites to manufacture engineered metamaterials. Exploitation of ‘smart materials’ is a major opportunity for 21st century Australian manufacturing if cost effective bulk production is available. Metamaterials are ideal building blocks for such new-age materials, being dielectric/metal composites structured on sub-wavelength dimensions, offering diverse properties unavailable in natural materials. Fibre drawing is a proven mass-production technology for translating the structure of a (macroscale) preform to microscale and has recently been applied it to fabricate microscale metamaterials. By overcoming fundamental instabilities, this project will transform the technique to manufacture nanoscale structured composites and demonstrate practical metamaterial-based optical devices with unique properties.Read moreRead less
Supramolecular assembly of chromophores:the effects of nucleation kinetics on their molecular packing, fibre structure and light harvesting efficiency. This project aims to reveal the effects of nucleation kinetics of chromophores on their molecular packing, fibre structure and energy transfer efficiency, which are significant to the design of low cost and lightweight materials for high efficiency solar energy harvesting. The knowledge to be acquired addresses the bottleneck governing the effici ....Supramolecular assembly of chromophores:the effects of nucleation kinetics on their molecular packing, fibre structure and light harvesting efficiency. This project aims to reveal the effects of nucleation kinetics of chromophores on their molecular packing, fibre structure and energy transfer efficiency, which are significant to the design of low cost and lightweight materials for high efficiency solar energy harvesting. The knowledge to be acquired addresses the bottleneck governing the efficiency of a class of novel materials that mimic the natural light harvesting systems. It will bring about health, economic and environmental benefits to Australia. This project will foster multidisciplinary collaborations between world class research centres.Read moreRead less
A coupled finite volume method for viscoelastic flow problems on highly-skewed unstructured meshes: a computational rheology revolution. Commercial tools are unavailable for 21st century industry to analyse complex flow processes involving viscoelastic materials. Using fabrication of microstructured polymer optical fibre as a key case study, a coupled finite volume methodology holds the key for the next generation of computational rheology simulators.
Tuning adhesion through polymer chain entanglement. Adhesion in materials relies on the ability to tune molecular scale interactions. This project unlocks knowledge to transfer to industry for the intelligent use of polymer additives at a surface. Outcomes will connect fields including ceramic and minerals processing, waste water treatment and for printing and coatings.