Advanced optical tweezers technologies for biophysical measurements. While much is understood about the fundamental unit of life, the living cell, such as their behaviour and their biochemistry and genetics, the interface between these two is only poorly known. We will use optical tweezers, which can trap and move microscopic objects without physical contact, to measure forces on the molecular and cellular scale to study the mechanical properties of cells and biomolecules, including molecular mo ....Advanced optical tweezers technologies for biophysical measurements. While much is understood about the fundamental unit of life, the living cell, such as their behaviour and their biochemistry and genetics, the interface between these two is only poorly known. We will use optical tweezers, which can trap and move microscopic objects without physical contact, to measure forces on the molecular and cellular scale to study the mechanical properties of cells and biomolecules, including molecular motors, which are Nature's own nanomachines, advanced our knowledge of the fundamental machinery of life.Read moreRead less
Surface Chemistry meets Cell Biology: Molecular Level Control of Surface Architecture for Cell Adhesion and Migration. Biotechnological applications such as tissue engineering, bone supports, implantable materials, cell assays and biosensors all require detailed knowledge of how cells interact with their environment. The proposed research aims to provide this knowledge by developing unique modified surfaces to investigate white blood cell migration and adhesion. Additional expected outcome will ....Surface Chemistry meets Cell Biology: Molecular Level Control of Surface Architecture for Cell Adhesion and Migration. Biotechnological applications such as tissue engineering, bone supports, implantable materials, cell assays and biosensors all require detailed knowledge of how cells interact with their environment. The proposed research aims to provide this knowledge by developing unique modified surfaces to investigate white blood cell migration and adhesion. Additional expected outcome will contribute to our understanding of the many fundamental cellular processes such as cell growth, differentiation and cell death as well as the molecular basis of diseases such as inflammation, cancer, cardiovascular diseases and wound healing. This research program will establish Australia as a leading force in this new research field.Read moreRead less
Dynamic Force Microscopy of small molecular assemblies. The possibility of manipulating a single molecule seems at first unreal, indeed 5 years ago it was pure science fiction. Through the gaining popularity of the Atomic Force Microscope (AFM) many perspectives about the molecular world are changing. Macroscopic effects such as adhesion and lubrication are now discussed in light of measurements made with this instrument. Newer work includes the observation of single protein unfolding experim ....Dynamic Force Microscopy of small molecular assemblies. The possibility of manipulating a single molecule seems at first unreal, indeed 5 years ago it was pure science fiction. Through the gaining popularity of the Atomic Force Microscope (AFM) many perspectives about the molecular world are changing. Macroscopic effects such as adhesion and lubrication are now discussed in light of measurements made with this instrument. Newer work includes the observation of single protein unfolding experiments. The biophysics oriented project detailed in this application will extend the AFM: into multi-molecular systems formed by self-assembly, such as cell membranes; into polyelectrolyte-surface interactions; and, finally into the sequencing of DNA.Read moreRead less