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Osmosis

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generation, where the osmotic pressure difference between saltwater and freshwater is harnessed for energy, presents a sustainable and renewable energy source with significant potential. Furthermore, the field of medical research is looking at innovative drug delivery systems that utilize osmotic principles, offering precise and controlled administration of medications within the body. As technology and understanding in this field continue to evolve, the applications of osmosis are expected to expand, addressing various global challenges in water sustainability, energy generation, and healthcare.
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ficelĂ©e au col du vaisseau, je l'avois plongĂ©e dans un grand vase plein d'eau, afin d'ĂȘtre sĂ»r qu'il ne rentrĂąt aucun air dans l'esprit de vin. Au bout de cinq ou six heures, je fus tout surpris de voir que la fiole Ă©toit plus pleine qu'au moment de son immersion, quoiqu'elle le fĂ»t alors autant que ses bords pouvoient le permettre; la vessie qui lui servoit de bouchon, Ă©toit devenue convexe & si tendue, qu’en la piquant avec une Ă©pingle, il en sortit un jet de liqueur qui s'Ă©leva Ă  plus d'un pied de hauteur.
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in a large bowl full of water, in order to be sure that no air re-entered the alcohol. At the end of 5 or 6 hours, I was very surprised to see that the vial was fuller than at the moment of its immersion, although it as far as its sides would allow; the bladder that served as its cap, bulged and had become so stretched that on pricking it with a needle, there came from it a jet of alcohol that rose more than a foot high.
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draw solution becomes dilute. The diluted draw solution may then be used directly (as with an ingestible solute like glucose), or sent to a secondary separation process for the removal of the draw solute. This secondary separation can be more efficient than a reverse osmosis process would be alone, depending on the draw solute used and the feedwater treated.
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hypertonic side of the semipermeable membrane will equal the force of diffusion on the hypotonic (the side with a lesser concentration) side, creating equilibrium. When equilibrium is reached, water continues to flow, but it flows both ways in equal amounts as well as force, therefore stabilizing the solution.
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Before finishing this memoir, I think I should report an event that I owe to chance and which at first seemed to me 
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 I filled a cylindrical vial, five inches long and about one inch in diameter; and having covered it with piece of damp bladder tied to the neck of the vial, I immersed it
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Osmosis may be used directly to achieve separation of water from a solution containing unwanted solutes. A "draw" solution of higher osmotic pressure than the feed solution is used to induce a net flow of water through a semi-permeable membrane, such that the feed solution becomes concentrated as the
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Panagopoulos, Argyris; Haralambous, Katherine-Joanne; Loizidou, Maria (25 November 2019). "Desalination brine disposal methods and treatment technologies – A review". Science of the Total Environment. 693: 133545. Bibcode:2019ScTEn.693m3545P. doi:10.1016/j.scitotenv.2019.07.351. ISSN 0048-9697. PMID
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Avant que de finir ce Mémoire, je crois devoir rendre compte d'un fait que je dois au hasard, & qui me parut d'abord 
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 j'en avois rempli une fiole cylindrique, longue de cinq pouces, & d'un pouce de diamÚtre ou environ; & l'ayant couverte d'un morceau de vessie mouillée &
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Osmosis can be demonstrated when potato slices are added to a high salt solution. The water from inside the potato moves out to the solution, causing the potato to shrink and to lose its 'turgor pressure'. The more concentrated the salt solution, the bigger the loss in size and weight of the potato
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It is difficult to describe osmosis without a mechanical or thermodynamic explanation, but essentially there is an interaction between the solute and water that counteracts the pressure that otherwise free solute molecules would exert. One fact to take note of is that heat from the surroundings is
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Osmosis also plays a vital role in human cells by facilitating the movement of water across cell membranes. This process is crucial for maintaining proper cell hydration, as cells can be sensitive to dehydration or overhydration. In human cells, osmosis is essential for maintaining the balance of
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as well as to small molecules like oxygen, carbon dioxide, nitrogen, and nitric oxide. Permeability depends on solubility, charge, or chemistry, as well as solute size. Water molecules travel through the plasma membrane, tonoplast membrane (vacuole) or organelle membranes by diffusing across the
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Future developments in osmosis and osmosis research hold promise for a range of applications. Researchers are exploring advanced materials for more efficient osmotic processes, leading to improved water desalination and purification technologies. Additionally, the integration of osmotic power
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The diffusion model of osmosis is rendered untenable by the fact that osmosis can drive water across a membrane toward a higher concentration of water. The "bound water" model is refuted by the fact that osmosis is independent of the size of the solute molecules—a colligative property—or how
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Usually the osmotic gradient is used while comparing solutions that have a semipermeable membrane between them allowing water to diffuse between the two solutions, toward the hypertonic solution (the solution with the higher concentration). Eventually, the force of the column of water on the
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concentration) to a region of low water potential (region of higher solute concentration), in the direction that tends to equalize the solute concentrations on the two sides. It may also be used to describe a physical process in which any solvent moves across a selectively permeable membrane
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demonstrates that attraction between the molecules (water and solute) reduces the pressure, and thus the pressure exerted by water molecules on each other in solution is less than in pure water, allowing pure water to "force" the solution until the pressure reaches equilibrium.
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of water along a concentration gradient) or by a solute's attraction to water (resulting in less free water on the higher solute concentration side of the membrane and therefore net movement of water toward the solute). Both of these notions have been conclusively refuted.
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The mechanism responsible for driving osmosis has commonly been represented in biology and chemistry texts as either the dilution of water by solute (resulting in lower concentration of water on the higher solute concentration side of the membrane and therefore a
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that retains the solute on one side and allows the pure solvent to pass to the other side, forcing it from a region of high solute concentration through a membrane to a region of low solute concentration by applying a pressure in excess of the
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This means that if a cell is put in a solution which has a solute concentration higher than its own, it will shrivel, and if it is put in a solution with a lower solute concentration than its own, the cell will swell and may even burst.
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and how the function of the water on the solution side differs from that of pure water due to the higher pressure and the presence of the solute counteracting such that the chemical potential remains unchanged. The
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water and solutes, ensuring optimal cellular function. Imbalances in osmotic pressure can lead to cellular dysfunction, highlighting the importance of osmosis in sustaining the health and integrity of human cells.
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When the membrane has a volume of pure water on both sides, water molecules pass in and out in each direction at exactly the same rate. There is no net flow of water through the membrane.
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toward a higher concentration of solute. In biological systems, the solvent is typically water, but osmosis can occur in other liquids, supercritical liquids, and even gases.
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When a plant cell is placed in a solution that is hypertonic relative to the cytoplasm, water moves out of the cell and the cell shrinks. In doing so, the cell becomes
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Osmosis may be opposed by increasing the pressure in the region of high solute concentration with respect to that in the low solute concentration region. The
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first documented observation of osmosis in 1748. The word "osmosis" descends from the words "endosmose" and "exosmose", which were coined by French physician
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When a plant cell is placed in a solution that is hypotonic relative to the cytoplasm, water moves into the cell and the cell swells to become
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solution) through a selectively permeable membrane and into a solution of greater concentration is equivalent to the osmotic pressure of the
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of a cell is largely maintained by osmosis across the cell membrane between the cell interior and its relatively hypotonic environment.
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L'Agent Immédiat du Movement Vital Dévoilé dans sa Nature et dans son Mode d'Action chez les Végétaux et chez les Animaux
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is the main agent of support in many plants. The osmotic entry of water raises the turgor pressure exerted against the
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7 Exchange Between Cells and Their Environment | Laboratory Manual For SCI103 Biology I at Roxbury Community College
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invented highly selective precipitation membranes, advancing the art and technique of measurement of osmotic flow.
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Some kinds of osmotic flow have been observed since ancient times, e.g., on the construction of Egyptian pyramids.
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Hammel, H.T.; Scholander, P.F. (1976). Perspectives on the Mechanism of Osmosis and Imbibition In:
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Borg, Frank (2003). "What is osmosis? Explanation and understanding of a physical phenomenon".
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Reverse osmosis is a separation process that uses pressure to force a solvent through a
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required to prevent net movement of solvent across the membrane. Osmotic pressure is a
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The intermediate word "osmose" and the word "osmotic" were coined by Scottish chemist
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Suppose an animal or plant cell is placed in a solution of sugar or salt in water.
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Kosinski, R. J.; C. K. Morlok (2008). "Challenging misconceptions about osmosis".
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Kramer, Eric; David Myers (2013). "Osmosis is not driven by water dilution".
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Elements of Chemistry: Including the Applications of the Sciences in the Arts
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are semipermeable. In general, these membranes are impermeable to large and
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Qin, Jian-Jun; Lay, Winson Chee Loong; Kekre, Kiran Arun (February 2012).
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relative to the cell cytoplasm, the cell will gain water through osmosis.
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The osmotic gradient is the difference in concentration between two
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relative to the cell cytoplasm, the cell will lose water by osmosis.
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disengages with the cell wall due to lack of water pressure on it.
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is another example of a way osmosis can cause harm to organisms.
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Migration of molecules to a region of lower solute concentration
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per unit area, or pressure, required to prevent the passage of
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and ion channels). Osmosis provides the primary means by which
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In certain environments, osmosis can be harmful to organisms.
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The Microscope: Its History, Construction, and Application...
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is an area of ongoing research, focusing on applications in
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able to be converted into mechanical energy (water rising).
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demonstrate the effect of osmosis in inorganic chemistry.
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Philosophical Transactions of the Royal Society (London)
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Micrographs of osmotic pressure on red blood cells (RBC)
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Many thermodynamic explanations go into the concept of
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The etymology of the word "osmosis" is discussed in:
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Histoire de l'Académie Royale des Sciences Année 1748
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Unsourced material may be challenged and 1125:MĂ©moires de l'AcadĂ©mie Royale des Sciences 1257: 1214: 1182: 1139: 1092: 861: 530:Learn how and when to remove this message 1223: 1191:"Five popular misconceptions of osmosis" 916:Cambridge English Pronouncing Dictionary 331: 274: 237:(1776–1847) from the Greek words áŒ”ÎœÎŽÎżÎœ ( 216: 180:, while being permeable to non-polar or 38: 1247: 1245: 1037:. Edinburgh: Elsevier. pp. 25–26. 153:of the solute but not on its identity. 14: 1400: 999: 827:The word "osmosis" first appeared in: 1300: 1298: 1271: 1269: 897: 400:. In extreme cases, the cell becomes 375:Plant cell in different environments. 112:) is the spontaneous net movement or 1251: 1242: 975:participating institution membership 508:adding citations to reliable sources 475: 584: 542: 24: 1304: 1295: 1266: 1189:Kramer, Eric; David Myers (2012). 632: 609: 25: 1429: 1376: 990:, EncyclopĂŠdia Britannica on-line 1338:Desalination and Water Treatment 1084:. 3 October 2007. Archived from 480: 368: 354: 340: 97: 56: 1325: 1315: 1112: 777: 737: 245:"outer, external"), and ᜠσΌός ( 201:is transported into and out of 1070: 1051: 1026: 993: 981: 947: 941:"Osmosis | A Level Notes" 933: 891: 790:(Paris, France: Dentu, 1826), 783:Etymology of "osmosis" : 668:Future developments in osmosis 256: 156:Osmosis is a vital process in 122:selectively-permeable membrane 43:The process of osmosis over a 13: 1: 1168:10.1016/j.tplants.2012.12.001 1033:Waugh, A.; Grant, A. (2007). 884: 249:"push, impulsion"). In 1867, 1358:10.1080/19443994.2012.669167 801:. See: Thomas Graham (1854) 664:, and other areas of study. 604: 296: 268:When a cell is submerged in 235:RenĂ© Joachim Henri Dutrochet 7: 1195:American Journal of Physics 1103:Osmosis and tensile solvent 676: 141:is defined as the external 10: 1434: 1383:Osmosis simulation in Java 1322:31374511. S2CID 199387639. 1000:Haynie, Donald T. (2001). 636: 613: 546: 471: 212: 29: 1127:: 57–104 (see p. 101–103) 1119:AbbĂ© Nollet (June 1748). 1004:Biological Thermodynamics 962:Oxford English Dictionary 189:phospholipid bilayer via 1063:22 February 2008 at the 730: 32:Osmosis (disambiguation) 1148:Trends in Plant Science 967:Oxford University Press 863:10.1161/01.CIR.21.5.808 844:Homer W. Smith (1960). 719:Salinity gradient power 622:semi-permeable membrane 428:saltwater aquarium fish 225:" invented by Dutrochet 768: 757: 595:semipermeable membrane 311:hydrophilic they are. 280: 263:semipermeable membrane 226: 124:from a region of high 48: 45:semipermeable membrane 1393:An Osmosis Experiment 758: 747: 714:Reverse osmosis plant 332:Role in living things 278: 220: 42: 1088:on 27 February 2009. 856:(5): 808–817 (810). 593:on either side of a 579:colligative property 504:improve this section 162:biological membranes 147:colligative property 120:molecules through a 30:For other uses, see 1418:Membrane technology 1350:2012DWatT..39..123Q 1283:. 19 September 2016 1207:2012AmJPh..80..694K 1160:2013TPS....18..195K 965:(Online ed.). 561:(or any other high- 231:Jean-Antoine Nollet 168:molecules, such as 151:molar concentration 1305:Sucher, Nikolaus. 1281:Biology LibreTexts 654:water purification 320:chemical potential 281: 227: 158:biological systems 49: 1216:10.1119/1.4722325 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Index

Osmotic
Osmosis (disambiguation)

semipermeable membrane
/ɒzˈmoʊsÉȘs/
US
/ɒs-/
diffusion
solvent
selectively-permeable membrane
water potential
solute
work
Osmotic pressure
pressure
colligative property
molar concentration
biological systems
biological membranes
polar
ions
proteins
polysaccharides
hydrophobic
lipids
aquaporins
diffusion
water
cells
turgor pressure

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