Micro pH Electrode

Measure in micro volumes

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The range of microsensors supplied by Edaphic Scientific can be extremely small – down to only 3 µm in diameter! The microsensors are highly suitable to measure small and micro volumes, droplets, or thin surface layers such as biofilms or biological tissues. The microsensors are also suitable for measuring inside standard lab equipment such as Eppendorfs. Systems […]

Biomedical biofilm research

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Rapid advances in biomedical research on biofilms have recently been made thanks to the Unisense range of microsensors. Biofilms are colonies of micro-organisms, including bacteria and fungi, that are found just about everywhere including on your teeth, in the bathroom, and in sewers and drains. While many biofilms are benign, or even beneficial, there are […]

Global warming allows prey to better avoid predators

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Increasing atmospheric and oceanic carbon dioxide (CO2) levels, as well as changing temperatures, is altering the physiology and behaviour of species in many different ways. For one lucky aphid, at least, climate change and global warming is allowing it to better avoid its predator, a wasp parasitoid. Via measurements of resting metabolic rate (RMR) with the […]

Finding extra-terrestrial life

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With the announcement this week of potentially 7 habitable planets orbiting a single star, the search for extra-terrestrial life is back in the headlines. Although the potential of running into little green or grey men is arguable, most scientists recognise that if life should exist anywhere then it will most likely be as microbial form. […]

Zooxanthellae Photosynthesis

What do pH and photosynthesis have in common?

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Photosynthesis is the synthesis of nutrients from carbon dioxide (CO2) and water driven by sunlight. pH is a measure of hydrogen ion concentration in a solution. It might not seem so obvious at first, but there are actually certain circumstances where a change in pH can tell you something important about photosynthesis. Take Figure 1 […]

Vineyard fluorescence

Cell death in grape berries

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The quality of your wine can be affected by cell death in grape berries. The affects are two-fold: 1) cell death leads to a higher concentration of sugar and alcohol levels because of water loss; and 2) a greater contribution to flavour. Scientists at the University of Adelaide are exploring physiological causes of cell death […]


What is hydrogen enriched water?

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As water is H2O it may seem counter intuitive to speak of hydrogen (H2) enriched water. There is a movement, particularly in Japan, to drink more hydrogen enriched water for health benefits. But what is hydrogen enriched water and is it actually good for you? Hydrogen enriched water simply has an extra amount of H2 […]

photosynthetic biofilms

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– O2, H2S and pH microprofiles in biofilm. Microbial mats undergo daily cycles that are characterized by dramatic changes in oxygen, pH and H2S dynamics. The mats are highly active systems with functional layers of only a few hundred microns. To investigate the dynamics within these layers it is important that measurements in the mat […]

Why it matters when a tiny species goes extinct

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– a look at the ramifications of species extinction for biogeochemistry and ecosystem functioning. Around Sydney there is a tiny species that every developer hates: the Cumberland Plain Land Snail. This species has stopped, delayed or significantly changed many developments across the Sydney basin, and is even said to be the snail that rules Sydney. Recently we […]