| 单词 | hydrophobic |
| 例句 | “Funny. It’s hydrophobic. The electric charges in the molecules won’t let water stick.” Sir Fig Newton and the Science of Persistence 2022-03-22T00:00:00Z Other are more water-hating or "hydrophobic" and they stick to things like silicone ice cube trays, making them go smelly. Here’s why your freezer smells bad — and what you can do about it 2023-05-02T04:00:00Z Written by Neil Simon and directed by Elaine May, this film is to the commitment-phobic what Jaws is to the hydrophobic. Is “shiksa” an insult? 2013-03-06T17:20:00Z To be fair, it is possible that CBD's hydrophobic properties - dissolves in oils, not water - may allow it to be at least ADsorbed onto skin cell surfaces, or even ABsorbed into some. Beauty’s New High: CBD Oil 2018-01-30T05:00:00Z To solve this, research groups, including Harvard University’s cSNAP team, have designed AC devices that use a hydrophobic barrier to perform evaporative cooling while holding back humidity. New Air-Conditioning Technology Could Be the Future of Cool 2023-08-29T04:00:00Z Lipids are a class of macromolecules that are nonpolar and hydrophobic in nature. Concepts of Biology 2013-04-25T00:00:00Z But some researchers are working on hydrophobic nets, where a treatment using a botanical pesticide essentially makes the nets water repellent. Fruit producers turn to nets for better crops 2023-04-24T04:00:00Z For example, our structure reveals that the interface between the two main parts of the protein is stabilized by sugars and hydrophobic patches, or areas that push out water molecules. Scientists uncovered the structure of the key protein for a future hepatitis C vaccine — here’s how 2022-12-13T05:00:00Z When they added these molecules in a mix of oil and water, they spontaneously assembled into tiny bubbles, or vesicles, with the hydrophobic portion facing inward. New tech could provide cheaper, less-polluting way to refine crude oil 2022-09-29T04:00:00Z “The fire makes the soil hydrophobic. It doesn’t absorb water like it usually does,” Shane Reichardt, a spokesman for Riverside County’s Emergency Management Department, said in a phone interview. A California County Braces for Fire, Floods and Mudslides, All at Once 2022-09-09T04:00:00Z A phospholipid has both hydrophobic and hydrophilic regions. Concepts of Biology 2013-04-25T00:00:00Z Many past attempts to concoct cannabis beverages were often unsuccessful or unsatisfying because THC is hydrophobic — drop it into water and it will just form a sludgy goop on the sides of a glass. Weed drinks are a buzzy alcohol substitute. But are they safe? 2022-08-22T04:00:00Z Functional groups are usually classified as hydrophobic or hydrophilic depending on their charge or polarity characteristics. Biology for AP Courses 2022-06-09T00:00:00Z The fatty acid portions of the lipid are hydrophobic, or “water hating,” while the other end is hydrophilic, or “water loving.” Miller & Levine Biology 2018-01-01T00:00:00Z Water is less able to infiltrate because the flow compacts the surface, plants are less common to slow flows, and soils in deserts can become more hydrophobic. An Introduction to Geology 2017-01-01T00:00:00Z Although they do not resemble other lipids, they are grouped with them because they are also hydrophobic. Concepts of Biology 2013-04-25T00:00:00Z The phospholipids are tightly packed together, and the membrane has a hydrophobic interior. Anatomy and Physiology 2013-06-19T00:00:00Z An example of a hydrophobic group is the non-polar methyl molecule. Biology for AP Courses 2022-06-09T00:00:00Z When the lipids are in water, their hydrophobic “tails” cluster together while the hydrophilic “heads” are attracted to water. Miller & Levine Biology 2018-01-01T00:00:00Z The Elephant Hill fire seared the soil, turning it hydrophobic, or water-repellent, a phenomenon that has triggered flooding and destructive landslides long after the blaze. A megafire raged for 3 months. No one’s on the hook for its emissions. When protein folding takes place, the hydrophobic R groups of nonpolar amino acids lay in the interior of the protein, whereas the hydrophilic R groups lay on the outside. Concepts of Biology 2013-04-25T00:00:00Z However, water-soluble materials—like glucose, amino acids, and electrolytes—need some assistance to cross the membrane because they are repelled by the hydrophobic tails of the phospholipid bilayer. Anatomy and Physiology 2013-06-19T00:00:00Z The head is the hydrophilic part, and the tail contains the hydrophobic fatty acids. Biology for AP Courses 2022-06-09T00:00:00Z Water molecules cannot diffuse through the cell membrane because the interior of the membrane is hydrophobic. Miller & Levine Biology 2018-01-01T00:00:00Z They did not do anything at all, in fact: The samples were extremely hydrophobic, and repelled water as if it were the most disgusting thing ever invented. Plants grow in lunar soil brought to Earth by Apollo astronauts 2022-05-12T04:00:00Z In contrast, the interior of the membrane, between its two surfaces, is a hydrophobic or nonpolar region because of the fatty acid tails. Concepts of Biology 2013-04-25T00:00:00Z It is composed of a phospholipid bilayer, with hydrophobic internal lipid “tails” and hydrophilic external phosphate “heads.” Anatomy and Physiology 2013-06-19T00:00:00Z In the tertiary structure, various interactions, e.g., hydrogen bonds, ionic bonds, disulfide linkages, and hydrophobic interactions between R groups, contribute to the folding of the polypeptide into different three-dimensional configurations. Biology for AP Courses 2022-06-09T00:00:00Z In addition, because there have been such large fires, there's a problem with soils that are "hydrophobic," she said. California Braces for Another Cataclysmic Wildfire Season 2022-03-31T04:00:00Z In the abnormally hot conditions of last summer’s fires, soil can become hydrophobic, such that rain water runs off rather than being absorbed by the soil. Methow Trails make winter comeback after wildfires, but long road to recovery lies ahead 2022-01-29T05:00:00Z Recall that plasma membranes have hydrophilic and hydrophobic regions. Concepts of Biology 2013-04-25T00:00:00Z The cell membrane is a phospholipid bilayer, so only substances that can pass directly through the hydrophobic core can diffuse through unaided. Anatomy and Physiology 2013-06-19T00:00:00Z The membrane protein will be polar and hydrophobic. Biology for AP Courses 2022-06-09T00:00:00Z Soils often become “hydrophobic” after they’ve been burned—they repel water. Devastating Pacific Northwest Floods Could Carry a Climate Warning 2021-11-22T05:00:00Z The new technique could eventually help engineer microbes to produce hydrophobic antibiotics, says Duke University biochemist Meta Kuehn, who was not involved in the research. Engineered Bacteria Produce a Rainbow of Colors 2021-09-20T04:00:00Z Lipid-soluble material can easily slip through the hydrophobic lipid core of the membrane. Concepts of Biology 2013-04-25T00:00:00Z Nonpolar molecules, which do not readily dissolve in water, are called hydrophobic, or “water-fearing.” Anatomy and Physiology 2013-06-19T00:00:00Z Ions are charged particles and cannot diffuse through the hydrophobic interior of the membrane. Biology for AP Courses 2022-06-09T00:00:00Z He told students that oil molecules are hydrophobic and repel water. From Crownpoint to Harvard: Navajo graduate leads by serving 2021-02-27T05:00:00Z The latest insulation trend is wool: Insects don’t like it, it’s hydrophobic, it cleans the air and it’s completely renewable. Green homes now: Pandemic-inspired projects mix with modern eco solutions | Produced by Seattle Times Marketing 2021-01-28T05:00:00Z The fatty acid chains are hydrophobic and exclude themselves from water, whereas the phosphate is hydrophilic and interacts with water. Concepts of Biology 2013-04-25T00:00:00Z Lipoproteins are compounds in which the hydrophobic triglycerides are packaged in protein envelopes for transport in body fluids. Anatomy and Physiology 2013-06-19T00:00:00Z Internal receptors bind to ligands that are hydrophobic and initiate the signaling cascade that indirectly influences the making of a functional protein. Biology for AP Courses 2022-06-09T00:00:00Z However, Streptomyces spores are also covered in hydrophobic sheaths, which means at least theoretically that they would not be repelled by springtail body armor. Dirt Doesn’t Smell like Dirt 2020-04-19T04:00:00Z Coronaviruses are encased by what she calls a “hydrophobic” lipid, or fatty, membrane. Coronavirus at California beaches? One scientist says surfers, swimmers must stay away 2020-04-02T04:00:00Z They can be large or small, weakly acidic or basic, hydrophilic or hydrophobic, positively or negatively charged, or neutral. Concepts of Biology 2013-04-25T00:00:00Z Therefore, phospholipids are said to have hydrophobic tails, containing the neutral fatty acids, and hydrophilic heads, containing the charged phosphate groups and nitrogen atom. Anatomy and Physiology 2013-06-19T00:00:00Z Internal receptors are integral membrane proteins that bind to hydrophobic ligands, initiating a signaling cascade, which indirectly influences the making of a functional protein. Biology for AP Courses 2022-06-09T00:00:00Z This allowed them to identify a hydrophobic pocket in the transporter that probably facilitates the binding of inhibitory drug molecules, and that might help to guide the design of new antimalarial compounds. Protein structure reveals how a malaria parasite imports a wide range of sugars 2020-01-28T05:00:00Z They are small, soluble proteins that typically transmit chemical signals by transporting small hydrophobic molecules between cells. Malaria-carrying mosquitoes get a leg up on insecticides 2019-12-24T05:00:00Z The drug powders will not dissolve in the hydrophobic, or water-fearing, solution; instead, they hang suspended in layers of varying density. Levitating Drugs, Star Wars Tech and a Simulated Universe: Science GIFs to Start Your Week 2019-11-18T05:00:00Z Like other lipids, cholesterol’s hydrocarbons make it hydrophobic; however, it has a polar hydroxyl head that is hydrophilic. Anatomy and Physiology 2013-06-19T00:00:00Z Sudan Red dye stains primarily waxy, hydrophobic material. Biology for AP Courses 2022-06-09T00:00:00Z The researchers say it is more effective than existing hydrophobic, or water-repellent, coatings for toilets, which shed liquid waste well but are less effective for solids. Superslippery Toilets Squash Water Wastage 2019-11-18T05:00:00Z A hydrophobic clerk invents an unsinkable bathing suit and finds himself entered in a swimming marathon. Movies on TV this week: Sunday, Oct. 20, 2019 2019-10-18T04:00:00Z The researchers say it is more effective than existing hydrophobic coatings for toilets. Levitating Drugs, Star Wars Tech and a Simulated Universe: Science GIFs to Start Your Week 2019-11-18T05:00:00Z Finally, like phospholipids, cholesterol molecules are found in the cell membrane, where their hydrophobic and hydrophilic regions help regulate the flow of substances into and out of the cell. Anatomy and Physiology 2013-06-19T00:00:00Z Lipids are hydrophobic substances: in the presence of water, they will aggregate to form globules to minimize exposure to water. Biology for AP Courses 2022-06-09T00:00:00Z Many plants and insects control their interactions with raindrops and other forms of ambient humidity using surface patterns of hydrophobic and hydrophilic regions1. Droplet motion electrically controlled 2019-08-20T04:00:00Z Although most soils lose their repellency within a year, some may stay hydrophobic for up to six years, depending on the fire’s intensity and the size of a soil’s particles. 6 things you can do to protect wildfire-scorched yards from the rains 2018-11-20T05:00:00Z These include mirrors intended to shame offenders, and hydrophobic paint that bounces urine back onto their shoes. With Tampons and Concrete, Vandals Hit Paris Urinals Seen as Sexist 2018-08-30T04:00:00Z These elongated proteins, called fibrous proteins, are strong and durable and typically hydrophobic. Anatomy and Physiology 2013-06-19T00:00:00Z Thus, the bile salts hydrophilic side can interface with water on one side and the hydrophobic side interfaces with lipids on the other. Biology for AP Courses 2022-06-09T00:00:00Z These regions are rendered hydrophobic, which causes the contact angle to increase. Droplet motion electrically controlled 2019-08-20T04:00:00Z In 2015, officials experimented with hydrophobic paint on walls along the street that would send urine back onto the offender’s shoes. Where to Go in Paris? The Red-Topped Trash Can 2018-08-15T04:00:00Z A synergistic system for lithium–oxygen batteries in humid atmosphere integrating a composite cathode and a hydrophobic ionic liquid-based electrolyte. A lithium–oxygen battery with a long cycle life in an air-like atmosphere 2018-03-20T04:00:00Z Lipids are hydrophobic compounds that provide body fuel and are important components of many biological compounds. Anatomy and Physiology 2013-06-19T00:00:00Z As a result, phospholipids are considered amphipathic because they have both hydrophobic and hydrophilic components. Biology for AP Courses 2022-06-09T00:00:00Z In EWOD, this is achieved by applying a voltage between a droplet on a thick, hydrophobic dielectric layer and an electrode that is positioned underneath the layer. Droplet motion electrically controlled 2019-08-20T04:00:00Z The last TM encloses a hydrophobic pore, followed by three intracellular fenestration sites and side portals comprising pore-property-determining residues. Structure and mechanogating mechanism of the Piezo1 channel 2018-01-21T05:00:00Z With his model, he generated one set of permutations of hydrophobic and polar monomers: the complete assortment of all possible red-and-blue necklaces up to 25 beads in length. Life's First Molecule Was Protein, Not RNA, New Model Suggests 2017-11-12T05:00:00Z The lipid tails, on the other hand, are uncharged, or nonpolar, and are hydrophobic—or “water fearing.” Anatomy and Physiology 2013-06-19T00:00:00Z Although the molecular structures of steroids differ from that of triglycerides and phospholipids, steroids are classified as lipids based on their hydrophobic properties. Biology for AP Courses 2022-06-09T00:00:00Z Studies of water and ice in hydrophilic and hydrophobic mesoporous silicas: pore characterisation and phase transformations. Role of stacking disorder in ice nucleation 2017-11-07T05:00:00Z The mix of hydrophobic yarns that repel moisture and hydrophilic yarns that retain some act to keep bodies cool without saturating the shirt. 9 ways to give your running gear a spring makeover 2017-03-15T04:00:00Z And just 12.7 percent of those — a mere 0.3 percent of the original set — fold into conformations that expose a hydrophobic patch of red beads on their surface. Life's First Molecule Was Protein, Not RNA, New Model Suggests 2017-11-12T05:00:00Z An amphipathic molecule is one that contains both a hydrophilic and a hydrophobic region. Anatomy and Physiology 2013-06-19T00:00:00Z A phospholipid is an amphipathic molecule, meaning it has a hydrophobic and a hydrophilic part. Biology for AP Courses 2022-06-09T00:00:00Z Lebot said all sorts of other possible solutions had been tried, from hydrophobic paints to metal sheeting, but nothing really worked. Mais wee, monsieur: Paris finds eco solution to public peeing 2017-02-01T05:00:00Z Such regions might bind to other proteins tightly and without specificity through hydrophobic interactions or perturb or integrate, in part, with membranes. The activities of amyloids from a structural perspective : Nature : Nature Research 2016-11-08T05:00:00Z And all that’s needed to spark this process are particular sequences of hydrophobic and polar components, which his model can predict. Life's First Molecule Was Protein, Not RNA, New Model Suggests 2017-11-12T05:00:00Z The hydrophilic portion can dissolve in water while the hydrophobic portion can trap grease in micelles that then can be washed away. Anatomy and Physiology 2013-06-19T00:00:00Z The hydrophobic tails are sequestered in the middle of the bilayer. Biology for AP Courses 2022-06-09T00:00:00Z Kelly used two paddles with hydrophobic, or water repellant, features to pass a sphere of water back and forth. The Daily 202: Nebraska freshman Ben Sasse emerges as a leader of the Stop Trump movement 2016-01-27T05:00:00Z "Neat stuff," Kelly says, dryly, while bouncing the liquid between to hydrophobic paddles. Astronaut celebrates his 300th straight day in space with some water ping pong 2016-01-21T05:00:00Z Skeptics of Dill’s hypothesis worry that it would be far easier for the hydrophobic patches to interact with one another instead of with other polymer chains. Life's First Molecule Was Protein, Not RNA, New Model Suggests 2017-11-12T05:00:00Z Figure 3.2 Phospholipid Structure A phospholipid molecule consists of a polar phosphate “head,” which is hydrophilic and a non-polar lipid “tail,” which is hydrophobic. Anatomy and Physiology 2013-06-19T00:00:00Z Although they do not resemble the other lipids, they are grouped with them because they are also hydrophobic and insoluble in water. Biology for AP Courses 2022-06-09T00:00:00Z Mountain Khaki, a brand that focuses on highly functional everyday clothes, is using the “hydrophobic” Alpha insulation in outdoor workwear. What Makes the Warmest Winter Coat? 2015-12-09T05:00:00Z The authors used small peptides containing both a hydrophobic group that associates with the membrane and a cationic group that electrostatically interacts with the negatively charged phosphate groups of RNA. Origin of Life: First Cells May Have Been Glued Together 2015-08-13T04:00:00Z But according to Pohorille, the potential for aggregation doesn’t automatically mean Dill is wrong about needing those hydrophobic patches to get autocatalysis started. Life's First Molecule Was Protein, Not RNA, New Model Suggests 2017-11-12T05:00:00Z Unsaturated fatty acids result in kinks in the hydrophobic tails. Anatomy and Physiology 2013-06-19T00:00:00Z When protein folding takes place, the hydrophobic R groups of nonpolar amino acids lie in the interior of the protein, whereas the hydrophilic R groups lie on the outside. Biology for AP Courses 2022-06-09T00:00:00Z A self-described “ingredient brand,” the six-month-old company hopes to integrate its hydrophobic textiles — which allow spilled liquids to roll right off the fabric — into the production cycles of popular retailers and up-and-coming designers. This Fashion Tech Startup Wants to Eliminate Stains Forever 2015-06-12T04:00:00Z Electrostatic interactions induced by short, positively charged, hydrophobic peptides are all it takes to attach RNA to vesicle membranes. Origin of Life: First Cells May Have Been Glued Together 2015-08-13T04:00:00Z This patch can serve as an attractive, sticky landing pad for hydrophobic sections of sequences floating by. Life's First Molecule Was Protein, Not RNA, New Model Suggests 2017-11-12T05:00:00Z Because the lipid tails are hydrophobic, they meet in the inner region of the membrane, excluding watery intracellular and extracellular fluid from this space. Anatomy and Physiology 2013-06-19T00:00:00Z These include hydrophobic interactions, ionic bonding, hydrogen bonding and disulfide linkages. Biology for AP Courses 2022-06-09T00:00:00Z The interior portions of proteins – and enzymes – tend to be hydrophobic in nature as to avoid the aqueous environment of the body. Tackle Chemistry on the MCAT With a Sample Question 2015-03-17T04:00:00Z Because the water–food coloring mixture avoids the Sharpie’s hydrophobic ink, the droplets would follow the contours of the tracks. 2 Common Liquids Spontaneously Form Dancing Droplets [Video] 2015-03-11T04:00:00Z But a few end up folding, and some even have a hydrophobic patch of their own, just like the original catalyst. Life's First Molecule Was Protein, Not RNA, New Model Suggests 2017-11-12T05:00:00Z The hydrophobic tails associate with one another, forming the interior of the membrane. Anatomy and Physiology 2013-06-19T00:00:00Z Lipid-soluble material with a low molecular weight can easily slip through the hydrophobic lipid core of the membrane. Biology for AP Courses 2022-06-09T00:00:00Z In addition, the inside of a cell membrane is very hydrophobic, consisting primarily of the tails of the phospholipid bilayer. Tackle Chemistry on the MCAT With a Sample Question 2015-03-17T04:00:00Z The researchers had figured out how to turn graphene into a liquid—no easy task, since the material is severely hydrophobic, which means that it clumps up and clogs the print heads. Graphene: Fast, Strong, Cheap, and Impossible to Use | The New Yorker 2014-12-15T05:00:00Z Which square a given bead ends up occupying depends on the tendency for the red, hydrophobic beads to clump together so that they can better avoid water. Life's First Molecule Was Protein, Not RNA, New Model Suggests 2017-11-12T05:00:00Z Charged atoms or molecules of any size cannot cross the cell membrane via simple diffusion as the charges are repelled by the hydrophobic tails in the interior of the phospholipid bilayer. Anatomy and Physiology 2013-06-19T00:00:00Z Residues can be large or small, weakly acidic or basic, hydrophilic or hydrophobic, positively or negatively charged, or neutral. Biology for AP Courses 2022-06-09T00:00:00Z Still, on a list of “luxury” features, the K900 checks virtually every other box, from yards of buttery leather upholstery to “hydrophobic” windows and blind-spot sensors. Kia's $60,000 Shot at Luxury Can't Find Its Way 2014-09-26T04:00:00Z The triglycerides in milk fat, however, provide the ideal hydrophobic environment for Milk Orange aggregations to disassociate and fluoresce. Quick, Inexpensive Milk Quality Test Could Help Developing Countries 2014-09-01T04:00:00Z If a single red bead and a red-tailed chain land on the hydrophobic patch at the same time, thermodynamics favors the two sequences linking together. Life's First Molecule Was Protein, Not RNA, New Model Suggests 2017-11-12T05:00:00Z The hydrophobic region interacts with the large lipid molecules, whereas the hydrophilic region interacts with the watery chyme in the intestine. Anatomy and Physiology 2013-06-19T00:00:00Z Each cell-surface receptor has three main components: an external ligand-binding domain, a hydrophobic membrane- spanning region, and an intracellular domain inside the cell. Biology for AP Courses 2022-06-09T00:00:00Z Density functional theory simulations with a model hydrophobic peptide interacting with xenon shows that this is feasible. Electron Theft, Not Drug Effects, May Be How Anesthesia Knocks People Out 2014-08-13T04:00:00Z This class of compound is termed a cavitand, and is capable of acting as a host to a variety of guest molecules, which bind non-covalently, such as through hydrogen bonding and hydrophobic interactions. Molecular Detector Could Find Meth And Other Illegal Drugs 2014-06-19T04:00:00Z Molecular chaperones are thought to recognize and bind to exposed hydrophobic regions of the unfolded proteins, thereby shielding these regions from the solvent. [Research Article] Structural Basis for Protein Antiaggregation Activity of the Trigger Factor Chaperone 2014-05-08T18:26:19.514Z The large and hydrophobic long-chain fatty acids and monoacylglycerides are not so easily suspended in the watery intestinal chyme. Anatomy and Physiology 2013-06-19T00:00:00Z In order to interact with the phospholipid fatty acid tails that form the center of the plasma membrane, many of the amino acids in the membrane-spanning region are hydrophobic in nature. Biology for AP Courses 2022-06-09T00:00:00Z This region acts probably in a similar fashion to the Φ-clamp in anthrax toxin and protects hydrophobic patches in the translocated protein. Mechanism of Tc toxin action revealed in molecular detail 2014-04-04T18:24:45.845Z There are several concepts in chemistry – aromaticity, hydrophobic effects, polarizability, chemical diversity – which succumb to multiple definitions and are not strictly quantifiable. Is psychology a "real" science? Does it really matter? 2013-08-13T23:15:11.203Z If unprotected, the proteins would likely aggregate or misfold to bury the hydrophobic residues. [Research Article] Structural Basis for Protein Antiaggregation Activity of the Trigger Factor Chaperone 2014-05-08T18:26:19.514Z Large particles cannot fit in between the individual phospholipids that are packed together, and polar molecules are repelled by the hydrophobic/nonpolar lipids that line the inside of the bilayer. Anatomy and Physiology 2013-06-19T00:00:00Z Other hydrophobic hormones include thyroid hormones and vitamin D. In order to be soluble in blood, hydrophobic ligands must bind to carrier proteins while they are being transported through the bloodstream. Biology for AP Courses 2022-06-09T00:00:00Z The GST expansion suggests that tapeworms would be able to water-solubilize and excrete a large range of hydrophobic compounds, which may add complexity to the pharmacokinetics of drugs. The genomes of four tapeworm species reveal adaptations to parasitism 2013-04-03T17:20:55.120Z Logitech’s latest mouse options sport a hydrophobic coating that prevents “sticky hands” and the buildup of gunk and goo, which eventually lower the mouse performance and functionality. The Logitech Gaming Lineup At PAX East 2013 2013-03-27T00:27:39Z Our data show that TF uses multiple sites to bind to several regions of the PhoA substrate protein primarily through hydrophobic contacts. [Research Article] Structural Basis for Protein Antiaggregation Activity of the Trigger Factor Chaperone 2014-05-08T18:26:19.514Z Substances that can pass between cells include metabolic products, such as glucose, water, and small hydrophobic molecules like gases and hormones, as well as various leukocytes. Anatomy and Physiology 2013-06-19T00:00:00Z Because these molecules are small and hydrophobic, they can diffuse directly across the plasma membrane into the cell, where they interact with internal receptors. Biology for AP Courses 2022-06-09T00:00:00Z It also features a durable hydrophobic coating to help keep your palm from sticking and dry grip for a steady hand. Logitech Leans On Science For Updated Line Of PC Gaming Accessories 2013-03-20T18:39:43Z In recent research, he and colleagues, including Rotello, found that modifying the gold surface with hydrophobic residues dictates the immune system's response. Biomedicine: The new gold standard 2013-03-13T18:21:23.433Z Instead of forming hydrogen bonds — a property normally associated with hydrophilic, or water-loving, molecules — F and other shape-mimicking bases developed by Kool's team were hydrophobic. Chemical biology: DNA's new alphabet 2012-11-21T18:21:07.117Z Recall that lipids are hydrophobic; however, their binding to albumin enables their transport in the watery plasma. Anatomy and Physiology 2013-06-19T00:00:00Z One reason that hydrophobic hormones like estrogen and testosterone trigger long- lasting events is because they bind carrier proteins. Biology for AP Courses 2022-06-09T00:00:00Z The enzyme bonds to the substrate with a weaker chemical bond, a hydrogen bond or hydrophobic bond, for example. Enzymes: the little molecules that bake bread 2012-09-28T13:45:00.217Z This slowdown is mainly due to record catch up after the unbridled use of hydrophobic polyurethane swim suits up until their ban in 2010. When Record Breaking Looks Wrong 2012-08-02T21:20:00Z A crucial position in the base had to be hydrophobic for enzymes to insert the base into DNA, yet it also had to accept hydrogen bonds if enzymes were to continue with copying the strand. Chemical biology: DNA's new alphabet 2012-11-21T18:21:07.117Z These proteins are found in all cells in varying amounts and help regulate water movement across membranes and through cells by creating a passageway across the hydrophobic lipid bilayer membrane. Anatomy and Physiology 2013-06-19T00:00:00Z For example, their water-repellant hydrophobic nature can help keep aquatic birds and mammals dry by forming a protective layer over fur or feathers. Biology for AP Courses 2022-06-09T00:00:00Z The structure of the protein is then determined by an energy-minimization algorithm that uses ionic bonds, hydrogen bonds, and the hydrophobic effect to fold the protein on a two-dimensional hexagonal lattice. [Essay] IBI* Series Winner: Aipotu: Simulation from Nucleotides to Populations and Back Again 2012-07-26T17:55:45.303Z One end of these surfactant molecules is "hydrophilic", or water-loving, and the other "hydrophobic", or water-fearing. 'Magnetic emulsions' clean up oil 2012-06-21T14:22:17Z The two that won, MMO2 and SICS, “walk a thin line” between being hydrophobic and hydrophilic at the key position, Romesberg says. Chemical biology: DNA's new alphabet 2012-11-21T18:21:07.117Z A hydrophobic hormone diffuses through the cell membrane and binds to the intracellular hormone receptor, which may be in the cytosol or in the cell nucleus. Anatomy and Physiology 2013-06-19T00:00:00Z Amino acids such as valine, methionine, and alanine are nonpolar or hydrophobic in nature, while amino acids such as serine, threonine, and cysteine are polar and have hydrophilic side chains. Biology for AP Courses 2022-06-09T00:00:00Z Nike's pants are stretch woven, made of a material that Van Horne characterized as possessing "hydrophobic" qualities. Nike's uniform focus is on performance, not fashion 2012-04-21T03:07:09Z It is also hydrophobic and oleophillic – meaning that it “hates the water… and loves the oil.” Nanosponge can absorb 100 times its weight in oil 2012-04-17T00:45:00.233Z But Romesberg says that developing an organism with only hydrophobic bases will be close to impossible, because cells contain too many components that have adapted to work with natural bases. Chemical biology: DNA's new alphabet 2012-11-21T18:21:07.117Z With little new eye candy to unveil, Nike focused on its hydrophobic hypermaterials and the company’s long relationship with the N.F.L. The Fifth Down: In Nike's Rollout, Flash Everywhere but in Uniforms 2012-04-04T01:08:22Z Integral proteins often span the membrane and can transport materials into or out of the cells; these embedded proteins can be hydrophilic or hydrophobic, depending on their placement within the membrane. Biology for AP Courses 2022-06-09T00:00:00Z Sarcotius, in his history of the epidemic diseases of Naples, informs us that the fever was invariably attended with hydrophobic symptoms. Curiosities of Medical Experience 2012-03-09T03:00:20.410Z Oil molecules, in contrast, are nonpolar and hydrophobic. Making Liquids Go Bipolar 2012-02-10T14:45:02.257Z For comparison, the video starts with two other surfaces—one hydrophilic and the other merely hydrophobic. New Water-Repelling Surfaces Avoid the Deadly Perils of Icing [Video] 2012-01-26T14:15:02.263Z The result is a surface covered in frost that is no longer hydrophobic, but incredibly hydrophilic, or water-attracting, he said. Observatory: Imagining a New Skin That?s Able to Repel Ice 2011-01-04T00:02:28Z When placed in water, hydrophobic molecules tend to form a ball or cluster. Biology for AP Courses 2022-06-09T00:00:00Z "The alienation is unusual—what do you think, Lightnut?"—he looked grave—"it doesn't seem the ordinary hiatus—the passing alcoholic dementia, you know—there seems in it something hydrophobic—eh?" The Haunted Pajamas He detached himself from the tilting control panel and sailed wildly about like a hydrophobic goldfish in a bowl of water. Master of the Moondog Mr. Kraus was excused in a state of hydrophobic rage and Teed withdrew in all meekness. In a Little Town This makes me feel positively hydrophobic toward Caspian; but all the same I'll remember what you say, and not be "precipitate"—one of your favourite words: follows you about like a dog! The Lightning Conductor Discovers America Figure 5.3 This phospholipid molecule is composed of a hydrophilic head and two hydrophobic tails. Biology for AP Courses 2022-06-09T00:00:00Z He was extremely fond of his glass of wine, and had, beside, that hydrophobic distaste, which has been imagined essential to the true poet. The American Quarterly Review, No. 17, March 1831 Wing thee hence, Or thou dost stand to-morrow on a cobweb Spun o'er the well of clotted Acheron, Whose hydrophobic entrails stream with fire! Books and Characters French and English It fortunately occurred to me, that the guaco, so celebrated for curing the bite or sting of all venomous snakes, might prove equally efficacious in hydrophobic cases. The Mirror of Literature, Amusement, and Instruction Volume 13, No. 372, May 30, 1829 They walk through rivers fully clothed, and shake their vesture as a dog his coat; or are hydrophobic for their skins, fearing to wash lest they disturb essential oils. Essays in Rebellion The hydrophobic tails, each containing either a saturated or an unsaturated fatty acid, are long hydrocarbon chains. Biology for AP Courses 2022-06-09T00:00:00Z So when the cleanly infidels were driven out of Granada, the pious and hydrophobic Cardinal Ximenez persuaded the Catholic sovereigns to destroy the abomination of baths they left behind. Castilian Days Solute molecules can dissolve in water because water molecules can bind to them via hydrogen bonds; a hydrophobic molecule like oil, which cannot bind to water, cannot go into solution. Biology for AP Courses 2022-06-09T00:00:00Z Bile contains bile salts, which are amphipathic, meaning they contain hydrophobic and hydrophilic parts. Biology for AP Courses 2022-06-09T00:00:00Z Recall that plasma membranes are amphiphilic: They have hydrophilic and hydrophobic regions. Biology for AP Courses 2022-06-09T00:00:00Z This characteristic is vital to the structure of a plasma membrane because, in water, phospholipids tend to become arranged with their hydrophobic tails facing each other and their hydrophilic heads facing out. Biology for AP Courses 2022-06-09T00:00:00Z However, these materials are polar molecules that are repelled by the hydrophobic parts of the cell membrane. Biology for AP Courses 2022-06-09T00:00:00Z The Q molecule is lipid soluble and freely moves through the hydrophobic core of the membrane. Biology for AP Courses 2022-06-09T00:00:00Z The molecules are hydrophilic and cannot penetrate the hydrophobic interior of the plasma membrane. Biology for AP Courses 2022-06-09T00:00:00Z Ions bind to hydrophobic molecules within the ion channels. Biology for AP Courses 2022-06-09T00:00:00Z The plasma membrane is composed of a bilayer of phospholipids, with their hydrophobic, fatty acid tails in contact with each other. Biology for AP Courses 2022-06-09T00:00:00Z The former types of interactions are also known as hydrophobic interactions. Biology for AP Courses 2022-06-09T00:00:00Z The hydrophobic chains of carbon atoms extend into the space between these two surfaces. Biology for AP Courses 2022-06-09T00:00:00Z In contrast, the interior of the cell membrane is hydrophobic and will not interact with water. Biology for AP Courses 2022-06-09T00:00:00Z This type of protein has a hydrophilic region or regions, and one or several mildly hydrophobic regions. Biology for AP Courses 2022-06-09T00:00:00Z |
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