Tiny robots step closer to treating hard-to-reach parts of the body
Tiny remotely operated robots could be designed to diagnose and treat illness in hard-to-reach areas of the human body, research suggests.
Nov 22, 2017
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Tiny remotely operated robots could be designed to diagnose and treat illness in hard-to-reach areas of the human body, research suggests.
Nov 22, 2017
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Algae grown in transparent tanks or tubes supplied with carbon dioxide can convert the greenhouse gas into other compounds, such as food supplements or fuels. But the process leads to a buildup of algae on the surfaces that ...
Apr 13, 2023
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Texas A&M AgriLife Research scientists are using artificial intelligence to set a new world record for producing algae as a reliable, economic source for biofuel that can be used as an alternative fuel source for jet aircraft ...
Mar 4, 2022
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Argonne study shows that carbon emissions that come from making ethanol can cultivate algae which in turn can be used to make biofuel.
Feb 23, 2022
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The variety of humble algae that cover the surface of ponds and seas could hold the key to boosting the efficiency of artificial photosynthesis, allowing scientists to produce more energy and lower waste in the process.
Oct 18, 2021
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A combined team of researchers from the National Renewable Energy Laboratory and Miami University, has developed an engineering process that allows cyanobacteria to use electricity to turn carbon dioxide into ethylene or ...
Laura Parker in National Geographic last year: Scientists have tried to get a handle on the amount of plastic that ends up in the seas and harm to birds, marine animals, and fish. .Billions of tons of plastic have been made ...
MSU scientists have a new proof of concept for a biofuel production platform that uses two species of marine algae and soil fungi. It lowers cultivation and harvesting costs and increases productivity, factors that currently ...
Sep 13, 2018
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(Tech Xplore)—Plastic container discards floating in oceans are an ugly sight and troubling environmental issue; scientists are exploring better ways to assure a cleaner future. That includes exploring materials that are ...
The world is looking for new solutions to address the challenges we're facing in the race to net zero. Things we rely on each day, like transport, agriculture and plastics are significant contributors to greenhouse gas emissions.
Oct 24, 2023
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Algae (pronounced /ˈældʒiː/; singular alga /ˈælɡə/, Latin for "seaweed") are a large and diverse group of simple, typically autotrophic organisms, ranging from unicellular to multicellular forms. The largest and most complex marine forms are called seaweeds. They are photosynthetic, like plants, and "simple" because they lack the many distinct organs found in land plants. For that reason they are currently excluded from being considered plants.
Though the prokaryotic Cyanobacteria (commonly referred to as Blue-green Algae) were traditionally included as "Algae" in older textbooks, many modern sources regard this as outdated and restrict the term Algae to eukaryotic organisms. All true algae therefore have a nucleus enclosed within a membrane and chloroplasts bound in one or more membranes. Algae constitute a paraphyletic and polyphyletic group, as they do not include all the descendants of the last universal ancestor nor do they all descend from a common algal ancestor, although their chloroplasts seem to have a single origin.
Algae lack the various structures that characterize land plants, such as phyllids and rhizoids in nonvascular plants, or leaves, roots, and other organs that are found in tracheophytes. Many are photoautotrophic, although some groups contain members that are mixotrophic, deriving energy both from photosynthesis and uptake of organic carbon either by osmotrophy, myzotrophy, or phagotrophy. Some unicellular species rely entirely on external energy sources and have limited or no photosynthetic apparatus.
Nearly all algae have photosynthetic machinery ultimately derived from the Cyanobacteria, and so produce oxygen as a by-product of photosynthesis, unlike other photosynthetic bacteria such as purple and green sulfur bacteria. Fossilized filamentous algae from the Vindhya basin have been dating back to 1.6 to 1.7 billion years ago.
The first alga to have its genome sequenced was Cyanidioschyzon merolae.
This text uses material from Wikipedia, licensed under CC BY-SA