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Sticky in Biological News

Nonstick and laser-safe gold aids laser trapping of biomolecules

... ideal materialsomething more structured and less sticky than a standard glass surfaceto anchor and ... patterned. Unfortunately, gold also tends to be sticky and can be melted by lasers. Now, biophysicists ... absorbing fragile molecules onto a sticky glass surface, producing random spacing and ...

A revolutionary new model for Alzheimer's disease

... of toxicity stemming from damage caused by sticky plaques that collect in the brain this research ... points where neurons connect. Even though the sticky amyloid plaques which have been viewed as a ... disease their symptoms were reversed, and the sticky amyloid was reduced. These results suggest that ...

Nothing stops an expert in the art of living

... the mirid bugs successfully evade their host's sticky clutches. Curious to find out how, Dagmar Voigt ... the glue's adhesive powers? Touching a sticky hair against a piece of mirid bug cuticle and ... adhesion of Pameridea roridula bugs to the sticky surface of the plant Roridula gorgonias ...

Research exposes new target for malaria drugs

... infect a blood cell, they send out clusters of sticky proteins to the cell surface, enabling them to ... birth-weight, fever and more. Targeting these sticky proteins with drugs is difficult, however, as ... high-resolution 3-D structures of a malarial sticky protein that binds to placenta, PfEMP1, to detail ...

Wet ear wax and unpleasant body odors signal breast cancer risk

... a distinct link between the gene and excessively smelly armpits and wet, sticky earwax. Specifically, the researchers expressed the ABCC11 gene and ... rapidly identify who may have a higher risk for breast cancer. "Wet, sticky earwax might not be easily noticed, but most people can't miss unpleasant ...

Moving in for the winter toxic brown recluse spiders pose danger

... hiding places, according to Houseman. "The best idea is to use sticky traps because the spiders will move onto the sticky traps and be caught," Houseman said. "The traps can be thrown away and ...

How nonstick bugs evade natural fly paper

... on the trapped insects. Yet the mirid bugs successfully evade their host's sticky clutches. Curious to find out how, Dagmar Voigt and Stanislav Gorb from ... coating somehow disrupting the glue's adhesive powers? Touching a sticky hair against a piece of mirid bug cuticle and looking at it with cryo-SEM, ...

How non-stick bugs evade natural fly paper

... on the trapped insects. Yet the mirid bugs successfully evade their host's sticky clutches. Curious to find out how, Dagmar Voigt and Stanislav Gorb from ... coating somehow disrupting the glue's adhesive powers? Touching a sticky hair against a piece of mirid bug cuticle and looking at it with cryo-SEM, ...

New family of gecko discovered by researchers from the U of Minnesota and Villanova University

... Researchers are also interested in the gecko because of the animals sticky toe pads, which allow them to scale rough and smooth surfaces -- a ... family tree that, in turn, will allow scientists to better understand how sticky toe pads have evolved. The researchers have named the new family ...

Scientists find how amber becomes death trap for watery creatures

... the goo and took it back to Dilchers lab on campus. Stuck in the sticky sap were representatives of almost all the small inhabitants of the swamp ... only solved the mystery of how swimming bugs could have been entombed in sticky sap from high up in a tree but could lead to new information about ...

Sticky protein helps reinforce fragile muscle membranes

... dystroglycan as the "glue" that binds muscle membranes to a tough layer of extracellular proteins called the basal lamina. Just as a piece of sticky tape can prevent a pin from bursting a balloon, the sturdy basal lamina reinforces muscle cell membranes and keeps small tears from bursting open -- ...

TRAPping proteins that work together inside living cells

... it. To pin down the collaborators, researchers make physical connections between old and new proteins with chemicals called crosslinkers. The sticky crosslinkers will only connect proteins close enough to work together, the thinking goes. But most crosslinkers are too large to squeeze into living ...

Wildlife Conservation Society supports world's first study of egg-laying mammal

... (known as a cloaca, as in both birds and reptiles). Echidnas (both long- and short-beaked) lay a single egg, which the female holds in a sticky pouch. The hatchling (known as a "puggle") resides in the pouch for between 40-50 days and receives milk from two mammary patches (echidnas have no ...

Researchers create freestanding nanoparticle films without fillers

... lack of cohesion. Nanoparticles typically consist of an inorganic core coated with a thin layer of organic molecules. These particles are not very sticky so they don't form coherent thin films unless they are encapsulated in a polymer coating or mixed with molecules called chemical "cross-linkers" that ...

Magnetic nano-'shepherds' organize cells

... by the American Chemical Society. "The cells have receptors on their surfaces that have an affinity for other cells," Krebs said. "They become sticky and attach to each other. When endothelial cells get together in a linear fashion, as they did in our experiments, it may help them to organize into ...

Controlling cucumber beetles organically

... cucumber beetles. A third group was planted with a different set of companion plants that seem to attract insects that prey on cucumber beetles. sticky traps stationed among the plants collected cucumber beetles, which were counted and removed on a weekly basis. The watermelon yields were not ...

New target for medicine to combat Alzheimer's: VIB scientists confirm protein's key role

... patients typically show the presence of amyloid plaques, which are abnormal accumulations of a protein (β-amyloid) between the neurons. The sticky β-amyloid develops when the precursor protein (amyloid precursor protein or APP) is cut into pieces incorrectly. GPR3: target for new ...

Impaired energy metabolism linked with initiation of plaques in Alzheimer's brain

... AD, the leading cause of dementia in the elderly, is a devastating neurological disorder characterized by accumulation and deposition of sticky clumps of A? protein. A? protein is generated from amyloid precursor protein (APP) by ?-site APP cleaving enzyme (BACE1). Previous research has ...

Unusual microbial ropes grow slowly in cave lake

... with each other and some have tendrils. "We do not know why the have the shape they do," says Macalady. "Microorganisms in them likely secrete some sticky goo, an extra-cellular polymeric substance -- slime that holds them together." What the researchers do know is that the location where these ropes ...

MIT researchers explain mystery of gravity fingers

... Researchers at MIT recently found an elegant solution to a sticky scientific problem in basic fluid mechanics: why water doesn't soak into soil at an even rate, but instead forms what look like fingers of fluid ...

Immune cells reveal fancy footwork

... but how does it do this exactly? Dutch biologist Suzanne van Helden discovered that before dendritic cells move to the lymph nodes they lose their sticky feet. This helps them to move much faster. Immature dendritic cells patrol the tissues in search of antigens. After exposure to such antigens they ...

Making the ultimate family sacrifice

... that cells of their genetic similarity will die." Ostrowski said the results suggest that "cooperative" genes are likely those that produce the sticky adhesives that the amoebae secrete to grab onto one another during colony formation. She said follow-up research is already under way to find ...

Bacterial biofilms as fossil makers

... must then infest the cells of the dying embryo," Raff said. The bacteria form biofilms, crowded assemblies of bacterial cells held together by sticky fibers made of proteins and sugars. As the biofilms fill the embryo cells, the tiny bacteria insinuate themselves between and among the organelles, ...

Scientists identify a molecule that coordinates the movement of cells

... were no longer guided toward the focal adhesions in a directed manner. They also noticed that cellular movement slowed, suggesting that the sticky adhesive sites were no longer assembling and disassembling efficiently. To figure out why, Fuchs and Wu studied how quickly wounds heal in mice. ...

Syracuse University partners with Serum Institute of India to develop vaccines for children

... professor in the chemistry department, will be developing models for both projects. "The simulations allow us to view the process and identify sticky ends of the proteins that could potentially be used as binding sites for transport molecules," Allis says. Unlike the tetanus vaccine molecule, ...

Fujitsu Scanners Selected as 'Editor's Choice' in Better Buys for Business 2008 Scan-to-File Guide

... speeds and advanced features, heavy scanning volumes and paper handling of unconventional materials, such as taped or attached documents including sticky notes and receipts. The text and photo separation, blank page removal and text orientation were also applauded by the editors. "Fujitsu strives to ...

August LabBits: A media tip sheet from the MBL in Woods Hole

... Massachusetts, the warty comb jelly, Mnemiopsis ledyi, lives out its days, bumping against eel grass and collecting small crustaceans with its sticky tentacles. The delicate creature, which resembles a small jellyfish without the stinger, is just another member of the food web here on the Western ...

Aphids are sentinels of climate change

... amounts of sap, weakening the plant, and also spread plant viruses. In addition, because the sap is very high in sugars the aphids excrete very sticky honeydew, which can encourage the growth of sooty moulds that build up and prevent sunlight from reaching the leaves, causing further weakening. ...

Milkweed's evolutionary approach to caterpillars: Counter appetite with fast repair

... toxic latex that pours from the plants' tubes. A caterpillar's bite into a milkweed leaf leads to a flood of latex that is "like getting a gallon of sticky paint thrown into your face," said Agrawal. Some caterpillars, in turn, have adapted by shaving the leaf, cutting a leaf's veins in a circle and ...

Stem cell chicken and egg debate moves to unlikely arena: the testes

... to hub cells," explained Jones. "Both cell types express many of the same proteins." The team experimentally decreased levels of one of those a sticky surface protein called DE-cadherin that likely allows stem cells to latch on to the support hub but only in somatic stem cells. When they did so, ...

Mechanism explains link between apolipoprotein E and Alzheimer's disease

... a previously unknown mechanism by which apolipoprotein E, a molecule whose mutation is linked to Alzheimer's disease (AD), stimulates degradation of sticky amyloid beta (A?) protein within the brain. The research, published by Cell Press in the June 12 issue of the journal Neuron, may lead to a powerful ...

Forum to focus on math and mechanics behind life processes

... present research that suggests there are simple but universal ways that cells exploit forces to control the growth and motion of focal adhesions, sticky feet that cells develop to help them attach and navigate. They are believed to help guide the differentiation of stem cells into various types of ...

American Chemical Society's Weekly PressPac -- April 30, 2008

... for making key marine mussel protein Biotechnology Progress Researchers in Korea report development of a way to double production of a sticky protein from marine mussels destined for use as an antibacterial coating to prevent life-threatening infections in medical implants. The coating, ...

USC School of Dentistry researchers uncover link between osteoporosis drugs and jaw infection

... identified the slimy culprits killing the jawbones of some people taking drugs that treat osteoporosis. Microbial biofilms, a mix of bacteria and sticky extracellular material, are causing jaw tissue infections in patients taking bisphosphonate drugs, said Parish Sedghizadeh, lead researcher and ...

American Chemical Society's Weekly PressPac -- April 16, 2008

... of the small intestine, the site of insulin absorption, the polymer shrinks and releases insulin. The addition of wheat germ agglutinin, a type of sticky plant sugar, allows the polymer to stick to the small intestine for prolonged periods. This improves the duration of insulin absorption, the ...

Fast AFM probes measure multiple properties of biomolecules or materials simultaneously

... instrument gathers precise information about both the tips position and the forces acting on it, sensing the shape of the material and how stiff and sticky it is. An output signal is generated only when there is an interaction force on the probe. In other words, transient interaction forces can be ...

ASU professor helps solve mystery of glassy water

... higher, heat capacity zone and change from a solid to very viscous liquid phase as if a solid brick of cold honey were heated and suddenly became a sticky liquid again. This occurs even in solutions in which water is the chief component. In pure water, however, something quite different happens. As ...

Ants and avalanches: Insects on coffee plants follow widespread natural tendency

... lives on coffee bushes. On some bushes, Azteca ants protect the scale insects from predators and parasites and in return collect honeydew, a sweet, sticky liquid the scale secretes. One of the green coffee scale's mortal enemies is a beetle whose adult and larval forms both feed on it. "When an ...

Sticky questions tackled in gecko research

... biologist who is trying to figure out how geckos can cling to virtually any surface, including glass. Unlike most creatures, geckos dont use sticky secretions to help them hang on, its all due to the structure of their amazing skin, says professor Anthony Russell, one of the worlds leading ...

Study links success of invasive Argentine ants to diet shifts

... digested plant sap excreted by aphids and scales, said Holway. If youve ever parked your car under a tree and found your windshield covered with sticky stuff, thats honeydew from aphids or scales. The change in the ants diet not only allows them to survive as they eliminate their food of native ...
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