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WO2000058415A1 - Dispositif et procede de transport de liquides sans pertes - Google Patents

Dispositif et procede de transport de liquides sans pertes Download PDF

Info

Publication number
WO2000058415A1
WO2000058415A1 PCT/EP2000/002426 EP0002426W WO0058415A1 WO 2000058415 A1 WO2000058415 A1 WO 2000058415A1 EP 0002426 W EP0002426 W EP 0002426W WO 0058415 A1 WO0058415 A1 WO 0058415A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
liquids
elevations
hydrophilic
transport
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2000/002426
Other languages
German (de)
English (en)
Inventor
Wilhelm Barthlott
Christoph Neinhuis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU38132/00A priority Critical patent/AU3813200A/en
Publication of WO2000058415A1 publication Critical patent/WO2000058415A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/20—Details of walls made of plastics material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02—Burettes; Pipettes
    • B01L3/0275—Interchangeable or disposable dispensing tips
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/02—Influencing flow of fluids in pipes or conduits
    • F15D1/06—Influencing flow of fluids in pipes or conduits by influencing the boundary layer
    • F15D1/065—Whereby an element is dispersed in a pipe over the whole length or whereby several elements are regularly distributed in a pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2245/00—Coatings; Surface treatments
    • F28F2245/02—Coatings; Surface treatments hydrophilic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2245/00—Coatings; Surface treatments
    • F28F2245/04—Coatings; Surface treatments hydrophobic

Definitions

  • the present invention relates to an apparatus and a method for the lossless transport or emptying of hydrophilic liquids.
  • Examples of this are surfaces made of the extremely hydrophobic Teflon or the extremely hydrophilic "no-drop coatings" on which water can run off without dripping.
  • the CH-PS-26 82 58 describes water-repellent surfaces that have a contact angle with water over 120 °. You will be won by applying powders such as kaolin, talc, clay or silica gel on a base, the powder being previously hydrophobicized by organic silicon compounds. It is applied together with curable resins or from solutions with organic solvents.
  • powders such as kaolin, talc, clay or silica gel
  • US Pat. No. 3,354,022 describes a water-repellent surface with elevations and depressions and an air content of at least 60%, in which a surface contact angle of more than 90 ° is established.
  • JP-A-62-191447 describes a method to increase the water repellency of a surface. For this purpose, a plasma polymer film is applied, this is roughened by etching and a second plasma polymer film is applied.
  • JP-A-3-174279 (abstract) describes a method for producing matt, decorative surfaces on sheets or foils. They are produced by lacquers which are hardened by means of ionizing radiation and in which patterns are embossed in an unspecified manner. They are then fully cured by further radiation.
  • WO-A-96/04123 describes self-cleaning surfaces of objects which have an artificial surface structure of elevations and depressions, the distance between the elevations being in the range from 5 to 200 ⁇ m and the height of the elevations being in the range from 5 to 100 ⁇ m .
  • the object of the present invention is to provide a device with which hydrophilic liquids can be transported, stored and emptied without loss.
  • the task is solved by a Device with the features of claim 1.
  • the devices according to the invention for lossless transport or emptying of hydrophilic liquids are characterized in that the device has elevations and depressions on the side facing the liquid, the distance between the elevations being in the range from 0.1 to 200 ⁇ m and the height of the elevations is in the range from 0.1 to 100 ⁇ m and at least the elevations are hydrophobic.
  • the devices according to the invention are typically curved on the side facing the liquid, so that this curved surface delimits an internal volume.
  • the devices are preferably curved concavely.
  • the devices according to the invention can be pipes or troughs through which the hydrophilic liquid is transported in order to get from a point A to a point B. It can also be a spoon or a trowel with which a hydrophilic liquid can be removed from a supply and transported to another location. In this case it is particularly advantageous if all sides of the device that come into contact with the liquid have the elevations and depressions according to the invention.
  • the invention also relates to a bowl, a tank or a canister in which liquids can be stored. These can be emptied by pouring out, with no residues of the liquid adhering to the devices due to the special surface structure.
  • the device according to the invention can also be a funnel which is used during the transfer of a liquid. All these devices have the advantage that the liquids do not adhere. ben, so that on the one hand losses are avoided and on the other hand cleaning steps are omitted, so that the devices according to the invention can be better used for the changing transport of various liquids.
  • Suitable hydrophilic liquids are, for example, water, aqueous solutions, aqueous suspensions or dispersions. Viscous liquids that are difficult to transport in conventional devices due to their adherence are particularly suitable.
  • the devices according to the invention can be used for the transport, storage, application and metering of liquids, in particular of small amounts of liquid.
  • the devices according to the invention preferably have a contact angle of over 150 ° with the liquid.
  • Devices of this type can be produced either by creating the surface structures already during manufacture, for example from hydrophobic polymers, or by creating them subsequently, either by subsequent embossing or etching or by gluing on a powder from the hydrophobic polymers. Finally, it is possible to create such surfaces of devices by subsequently making water-repellent to previously manufactured devices with the desired structures.
  • One possibility for subsequent, durable waterproofing is the subsequent silanization of previously produced surfaces with the desired structures. Silanization can take place on all materials that are naturally hydrophilic but are able to react with the reactive groups of the silanes, so that the surface ultimately consists of the hydrophobic residues of the silanes.
  • the objects can be made from the outset in forms that have the negative of the desired surface structure. It is also possible to apply the hydrophobic polymers in the form of solutions and / or dispersions which, when they dry and set, lead to the desired surface structures. Structures of this type arise, for example, from self-organizing polymers or under conditions which are known in principle from the production of matt lacquer surfaces.
  • embossing can be done, for example, by heated or heatable stamps.
  • the etching can be carried out using the known chemical etching means or by physical methods such as ion etching with oxygen or other irradiations, which lead to a roughening of the surface and a surface structure that can be used according to the invention.
  • the devices according to the invention can be used in many areas.
  • the devices can be used as pipette tips for dosing small amounts of liquid in biotechnology. be set so that small amounts of liquid of different composition can be pipetted without changing the pipette tip.
  • the devices according to the invention could also be used to measure amounts of precipitation. Due to the special surface structure of the device, liquids from the air do not adhere, for example in the case of fog, so that a more precise measurement of corresponding amounts of precipitation is possible.
  • the device according to the invention is also suitable for transporting highly viscous, hydrophilic adhesive preparations or precursors thereof through pipes as part of the manufacturing process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Dispositif de transport sans pertes ou de vidage de liquides hydrophiles, caractérisé en ce qu'il comporte sur la face en contact avec le liquide des parties saillantes et des creux. L'écart entre les creux est de l'ordre de 0,1 à 200 mu m et la hauteur des parties saillantes est de l'ordre de 0,1 à 100 mu m, les parties saillantes au moins étant hydrophobes.
PCT/EP2000/002426 1999-03-25 2000-03-18 Dispositif et procede de transport de liquides sans pertes Ceased WO2000058415A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU38132/00A AU3813200A (en) 1999-03-25 2000-03-18 Method and device for the loss-free transport of liquids

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19913601.7 1999-03-25
DE19913601A DE19913601C1 (de) 1999-03-25 1999-03-25 Vorrichtung und Verfahren zum verlustfreien Transport von Flüssigkeiten

Publications (1)

Publication Number Publication Date
WO2000058415A1 true WO2000058415A1 (fr) 2000-10-05

Family

ID=7902401

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/002426 Ceased WO2000058415A1 (fr) 1999-03-25 2000-03-18 Dispositif et procede de transport de liquides sans pertes

Country Status (3)

Country Link
AU (1) AU3813200A (fr)
DE (1) DE19913601C1 (fr)
WO (1) WO2000058415A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2829406A1 (fr) * 2001-09-12 2003-03-14 Commissariat Energie Atomique Surface autonettoyante et/ou antisalissure et/ou anticondensation
JP2010515312A (ja) * 2007-01-03 2010-05-06 ヴェーデクス・アクティーセルスカプ 補聴器の構成要素および補聴器の構成要素を作製する方法
US8129195B2 (en) 2007-07-03 2012-03-06 Roche Diagnostics Operations, Inc. Method for the production of an analytical element
US8163560B2 (en) 2003-12-04 2012-04-24 Roche Diagnostics Operations, Inc. Coated test elements
US8295522B2 (en) 2006-08-31 2012-10-23 Widex A/S Filter for a hearing aid and a hearing aid
US8629070B2 (en) * 2001-04-12 2014-01-14 Evonik Degussa Gmbh Flat textile structures with self-cleaning and water-repellent surface
US8828333B2 (en) 2007-07-03 2014-09-09 Roche Diagnotics Operations, Inc. Method for the production of a microfluidic system on a polymer surface

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19926888A1 (de) * 1999-06-12 2000-12-14 Bayer Ag Vorrichtung und Verfahren zum Dosieren kleiner Flüssigkeitenmengen
DE20006010U1 (de) * 2000-03-31 2000-07-13 CREAVIS Gesellschaft für Technologie und Innovation mbH, 45772 Marl Behälter mit strukturierten flüssigkeitsabweisenden und flüssigkeitsbenetzenden Teilbereichen der inneren Oberfläche
US20050036918A1 (en) * 2000-12-18 2005-02-17 Lange Frederick F. Microchannels for efficient fluid transport
DE10138037A1 (de) * 2001-08-03 2003-02-20 Creavis Tech & Innovation Gmbh Pipettenspitzen mit teilweise strukturierten Oberflächen mit verbesserten Pipettiereigenschaften
DE10336513A1 (de) * 2003-08-08 2005-03-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Mikroinjektionseinrichtung und zugehöriges Herstellungsverfahren
DE102007048460B4 (de) 2007-10-10 2009-08-27 Deutsches Zentrum für Luft- und Raumfahrt e.V. Vorrichtung zur Gewinnung von Solarenergie
CN115945234A (zh) * 2022-12-30 2023-04-11 广东润鹏生物技术有限公司 移液方法和核酸提取卡盒

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354022A (en) * 1964-03-31 1967-11-21 Du Pont Water-repellant surface
JPH02115292A (ja) * 1988-10-24 1990-04-27 Fujitsu Ltd 水溶液容器の疎水化方法
JPH06116430A (ja) * 1992-10-05 1994-04-26 Matsushita Electric Ind Co Ltd 撥水撥油性フィルムとその製造方法
JPH07166123A (ja) * 1993-12-17 1995-06-27 Hitachi Ltd 撥水性被膜、その製法及び熱交換器
JPH07197017A (ja) * 1993-12-28 1995-08-01 Kao Corp 撥水表面を有する固体およびその生成方法
WO1996004123A1 (fr) * 1994-07-29 1996-02-15 Wilhelm Barthlott Surfaces autonettoyantes d'objets et leur procede de production

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH268258A (fr) * 1946-07-30 1950-08-16 Rhone Poulenc Chemicals Revêtement hydrofuge.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354022A (en) * 1964-03-31 1967-11-21 Du Pont Water-repellant surface
JPH02115292A (ja) * 1988-10-24 1990-04-27 Fujitsu Ltd 水溶液容器の疎水化方法
JPH06116430A (ja) * 1992-10-05 1994-04-26 Matsushita Electric Ind Co Ltd 撥水撥油性フィルムとその製造方法
JPH07166123A (ja) * 1993-12-17 1995-06-27 Hitachi Ltd 撥水性被膜、その製法及び熱交換器
JPH07197017A (ja) * 1993-12-28 1995-08-01 Kao Corp 撥水表面を有する固体およびその生成方法
WO1996004123A1 (fr) * 1994-07-29 1996-02-15 Wilhelm Barthlott Surfaces autonettoyantes d'objets et leur procede de production

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* Cited by examiner, † Cited by third party
Title
BARTHLOTT W NEINHUIS C: "Purity of the sacred lotus, or escape from contamination in biological surfaces", PLANTA, vol. 202, 1997, pages 1 - 8, XP002142787 *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 322 (C - 0739) 10 July 1990 (1990-07-10) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 401 (C - 1231) 27 July 1994 (1994-07-27) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 09 31 October 1995 (1995-10-31) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 11 26 December 1995 (1995-12-26) *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8629070B2 (en) * 2001-04-12 2014-01-14 Evonik Degussa Gmbh Flat textile structures with self-cleaning and water-repellent surface
FR2829406A1 (fr) * 2001-09-12 2003-03-14 Commissariat Energie Atomique Surface autonettoyante et/ou antisalissure et/ou anticondensation
WO2003022463A1 (fr) * 2001-09-12 2003-03-20 Commissariat A L'energie Atomique Surface autonettoyante et/ou antisalissure et/ou anticondensation
US8163560B2 (en) 2003-12-04 2012-04-24 Roche Diagnostics Operations, Inc. Coated test elements
US8295522B2 (en) 2006-08-31 2012-10-23 Widex A/S Filter for a hearing aid and a hearing aid
JP2010515312A (ja) * 2007-01-03 2010-05-06 ヴェーデクス・アクティーセルスカプ 補聴器の構成要素および補聴器の構成要素を作製する方法
US8763238B2 (en) 2007-01-03 2014-07-01 Widex A/S Method of manufacturing a component for a hearing aid
US8129195B2 (en) 2007-07-03 2012-03-06 Roche Diagnostics Operations, Inc. Method for the production of an analytical element
US8828333B2 (en) 2007-07-03 2014-09-09 Roche Diagnotics Operations, Inc. Method for the production of a microfluidic system on a polymer surface

Also Published As

Publication number Publication date
DE19913601C1 (de) 2000-08-10
AU3813200A (en) 2000-10-16

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