A5014928108- Optical measurement and interference techniques
- Optical Polarization and Ellipsometry
- Optical Coherence Tomography Applications
- Microfluidic and Capillary Electrophoresis Applications
- Ergonomics and Musculoskeletal Disorders
- Spectroscopy Techniques in Biomedical and Chemical Research
- Textile materials and evaluations
- Proteins in Food Systems
- Leaf Properties and Growth Measurement
- Photoacoustic and Ultrasonic Imaging
- Smart Grid and Power Systems
- Power Systems and Renewable Energy
- Force Microscopy Techniques and Applications
- Hydrogels: synthesis, properties, applications
- Advancements in Transdermal Drug Delivery
- Optical Imaging and Spectroscopy Techniques
- Smart Grid Security and Resilience
- Cerebrovascular and Carotid Artery Diseases
- 3D Printing in Biomedical Research
- Cephalopods and Marine Biology
- Spectroscopy and Chemometric Analyses
- Lymphatic System and Diseases
- Neuroscience and Neural Engineering
- Polydiacetylene-based materials and applications
- IoT-based Smart Home Systems
University of Auckland
2017-2025
Piezoelectric organic polymers are promising alternatives to their inorganic counterparts due mechanical flexibility, making them suitable for flexible and wearable piezoelectric devices. Biological such as proteins have been reported possess piezoelectricity, while offering additional benefits, biocompatibility biodegradability. However, questions remain regarding protein the impact of secondary structure. This study examines properties lysozyme amyloid fibril films, plasticized by...
Variations in mechanical properties of the extracellular matrix occurs various processes, such as tissue fibrosis. The impact changes stiffness on cell behaviour are studied vitro using types biomaterials and methods. Stiffness patterning hydrogel scaffolds, through use gradients for instance, allows modelling studying cellular responses to fibrotic mechanisms. Gelatine methacryloyl (GelMA) has been used extensively engineering its inherent biocompatibility ability precisely tune properties....
Jet injection is a process by which fluid drug delivered through the skin in form of high-velocity jet. Powering jet using controllable actuator, such as moving-coil permanent magnet motor, offers many advantages, but to date has required large and heavy systems provide power control bandwidth. In order minimize size system, we developed scaling model for powered motors, giving optimal actuator mass function velocity, volume, motor efficiency, energy storage density. We combined this with an...
Significance: A non-destructive technique for accurately characterizing the spatial distribution of optical properties soft tissue membranes may give improved outcomes in many engineering applications. Aim: This study aimed to develop a macroscopic imaging that is sensitive anisotropy, typical fibrous components membranes, and can address some difficulties caused by complex turbid nature these tissues. Approach: near-infrared Mueller matrix polarimeter employing logarithm decomposition was...
An integrated instrument is being developed to study live cardiac trabeculae, which capable of stimulating the muscle under controlled conditions while measuring heat production, force, and sarcomere length distribution. To improve accuracy estimation stress, strain, volumetric geometry must be known. A spectral domain optical coherence tomography system (SD-OCT) has been constructed calibrated image trabecula mounted inside instrument. This was above chamber a series equally-spaced...
A non-destructive imaging technique is required for quantifying the anisotropic and heterogeneous structural arrangement of collagen in soft tissue membranes, such as bovine pericardium, which are used construction bioprosthetic heart valves. Previously, our group developed a Stokes polarimeter that measures linear birefringence samples transmission arrangement. With this device, retardance optic axis orientation; can be estimated over sample using simple vector algebra on vectors Poincaré...
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Polarisation imaging of biological media has a wide range applications including cancer identification in tissues, such as colon, liver, cervix, breast, and skin; non-invasive glucose sensing; non-destructive characterisation the structural anisotropy tissues containing fibrous components, collagen actin-myosin. In this talk I will present my PhD work on development wide-field Mueller matrix system that been integrated with mechanical tester to enable structure-function studies soft tissue...
Objective. Early diagnosis of heart problems is essential for improving patient prognosis.Approach. We created a non-contact imaging system that calculates the vessel-induced deformation skin to estimate carotid artery pressure displacement waveforms. present clinical study in patients (n= 27) with no underlying condition, aortic stenosis (AS), or mitral regurgitation (MR).Main results. Displacement waveforms were compared catheter pressures same patients. The morphologies and found be...
Understanding the arrangement of bone, muscle, and fat tissue in human body is essential for diagnosis diseases development personalised digital twins. While imaging modalities, such as CT MRI give accurate measurements inside body, these modalities require bulky expensive equipment, expert operators, time-consuming procedures. Optical scanning a modality that becoming cheaper higher spatial resolution, however it limited to capturing anatomy skin surface only. By combining optical...
Lymphoedema is a debilitating disease that results in chronic swelling of body region due to dysfunctional lymphatic system. Since cure yet be identified for this disease, management currently the best option preventing progression and improving patient outcomes. Fluorescence lymphography popular approach mapping vessels provide information about underlying dysfunction. However, current clinical fluorescence tools do not enable creation comprehensive 3D maps lymphatics throughout affected...
The development of personalised healthcare models to facilitate home-based will enable new strategies for treating chronic disease. Such that incorporate the physiological systems human body require a common 3D coordinate system in which different organ can be positioned and linked together. A requires dataset accurate whole-body geometries sufficient characterise population variation. For this purpose, prototype camera-based imaging has been developed at Auckland Bioengineering Institute....