News tagged with tiny particles
Membrane filters are key to future of public water supply, scientists say
Apr 21, 2009 |
4.4 / 5 (5) |
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As municipalities across the United States reduce their dependence on groundwater sources to mitigate environmental impacts like subsidence and flooding, there is a growing need for better purification processes to keep contaminants ...
Deep-sea rocks point to early oxygen on Earth
Space & Earth / Earth Sciences
Mar 24, 2009 |
4.9 / 5 (14) |
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Red jasper cored from layers 3.46 billion years old suggests that not only did the oceans contain abundant oxygen then, but that the atmosphere was as oxygen rich as it is today, according to geologists.
Researchers: Molecular forklifts overcome obstacle to 'smart dust'
Nanotechnology / Bio & Medicine
Jan 18, 2009 |
4.2 / 5 (5) |
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Algae is a livid green giveaway of nutrient pollution in a lake. Scientists would love to reproduce that action in tiny particles that would turn different colors if exposed to biological weapons, food spoilage or signs of ...
Six North American sites hold 12,900-year-old nanodiamond-rich soil
Nanotechnology / Nanomaterials
Jan 01, 2009 |
4.7 / 5 (15) |
1
Abundant tiny particles of diamond dust exist in sediments dating to 12,900 years ago at six North American sites, adding strong evidence for Earth's impact with a rare swarm of carbon-and-water-rich comets or carbonaceous ...
Search results for tiny particles
Dangerous laser printer particles identified
Feb 11, 2009 |
4.7 / 5 (14) |
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The identity and origin of tiny, potentially hazardous particles emitted from common laser printers have been revealed by a new study at Queensland University of Technology.
Microswimmers" make a big splash for improved drug delivery
Jan 12, 2009 |
3 / 5 (1) |
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They may never pose a challenge to Olympic superstar Michael Phelps, but the "microswimmers" developed by researchers in Spain and the United Kingdom could break a long-standing barrier to improving delivery of medications ...
Do laser printers emit harmful particles?
Dec 02, 2008 |
4.4 / 5 (14) |
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(PhysOrg.com) -- Researchers have investigated the possibility that laser printers emit pathogenic toner particles into the air, which has been a subject of public controversy. Some reports have suggested ...
Nanoparticles could pose threat to humans: scientists
Nanotechnology / Bio & Medicine
Sep 16, 2009 |
3.6 / 5 (11) |
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They can make fabric resistant to stains, improve the taste of food and help drug research, but nanoparticles could also pose a danger to human health, experts warned Wednesday.
Electrostatic surface cleaning
Oct 07, 2009 |
not rated yet |
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It's often the little things that count in industrial manufacturing processes. Particles less than half the diameter of a hair in size can significantly impair quality in production. For example, there should ...
Safer nanoparticles spotlight tumors, deliver drugs
Nanotechnology / Bio & Medicine
Feb 22, 2009 |
4.8 / 5 (6) |
1
(PhysOrg.com) -- Small is promising when it comes to illuminating tiny tumors or precisely delivering drugs, but many worry about the safety of nano-scale materials. Now a team of scientists has created miniscule ...
Better Way to Measure Particle Shape Proves Popular
Sep 08, 2009 |
5 / 5 (2) |
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Tiny particles are pivotal to climate change, public health, and nanotechnology. A significant fraction of these particles are aspherical, yet scientists must routinely assume the particles are spherical to ...
Breakthrough with light could help viral research
Oct 20, 2009 |
5 / 5 (3) |
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(PhysOrg.com) -- Researchers have developed a method using the force of light to gently trap, manipulate and study tiny, active objects as miniscule as viruses -- opening doors to expanded viral research.
Janus particles: particles with two faces
Sep 18, 2009 |
4.4 / 5 (5) |
1
(PhysOrg.com) -- Researchers at the MESA+ Institute for Nanotechnology at the University of Twente, The Netherlands, have devised a method for fabricating Janus particles, so called because, like the Roman ...
Tiny capsules deliver drugs
Nanotechnology / Bio & Medicine
Jan 12, 2009 |
5 / 5 (2) |
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A tiny particle syringe composed of polymer layers and nanoparticles may provide drug delivery that targets diseased cells without harming the rest of the body, according to a team of chemical engineers. This ...
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