EP4598511A1 - Verfahren zur herstellung einer anthropogenen zielsubstanz - Google Patents
Verfahren zur herstellung einer anthropogenen zielsubstanzInfo
- Publication number
- EP4598511A1 EP4598511A1 EP23776273.7A EP23776273A EP4598511A1 EP 4598511 A1 EP4598511 A1 EP 4598511A1 EP 23776273 A EP23776273 A EP 23776273A EP 4598511 A1 EP4598511 A1 EP 4598511A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- superabsorbent
- liquid
- target substance
- liquid volume
- volume
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/10—Dispersions; Emulsions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/10—Dispersions; Emulsions
- A61K9/107—Emulsions ; Emulsion preconcentrates; Micelles
- A61K9/1075—Microemulsions or submicron emulsions; Preconcentrates or solids thereof; Micelles, e.g. made of phospholipids or block copolymers
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/10—Processes for the isolation, preparation or purification of DNA or RNA
- C12N15/1003—Extracting or separating nucleic acids from biological samples, e.g. pure separation or isolation methods; Conditions, buffers or apparatuses therefor
- C12N15/1006—Extracting or separating nucleic acids from biological samples, e.g. pure separation or isolation methods; Conditions, buffers or apparatuses therefor by means of a solid support carrier, e.g. particles, polymers
Definitions
- the invention relates to a process for producing an anthropogenic target substance.
- Superabsorbent polymers are plastics that are able to absorb many times their own weight in polar liquids. These are mainly water or aqueous solutions. When the liquid is absorbed, the superabsorbent swells and forms a hydrogel. Hydrogels can form all cross-linked polymers that are polar (e.g. polyacrylamide, polyvinylpyrrolidone, amylopectin, gelatin, cellulose).
- acrylamide sodium salt of acrylic acid
- acrylamide acrylamide
- a so-called core cross-linker (CXL) is added to the monomer solution, which connects the long-chain polymer molecules formed to one another in places using chemical bridges, also known as cross-linking. These bridges make the polymer insoluble in water.
- This so-called base polymer may be subjected to a process known as surface cross-linking (SXL). This involves applying another chemical to the surface of the particles, which, when heated, creates a second network only on the outer layer of the grain. This shell supports the swollen gel so that it stays together even under external stress (movement, pressure).
- the product is traditionally used, for example, as white granules with particle sizes of 100 to 1000 pm. It is mainly used in baby diapers, sanitary napkins, incontinence care, in dressing material and, in small quantities, in cable sheathing for deep-sea cables.
- Other areas of application include so-called gel beds, gel-forming extinguishing agents in fire fighting, as a mechanical stabilizer for cut flowers in a vase or as an additive for plant soil to permanently store water.
- acrylic acid neutralized with potassium hydroxide is used because of its better environmental compatibility.
- the use of superabsorbents is known as toys under names such as "water beads", "aqua beads" or "water beads”.
- the nanoparticles are present in a high concentration in the second liquid volume.
- the concentration or the presence of the correct substance can be examined in a subsequent analysis, e.g. by means of a spectroscopic examination.
- the second liquid volume can also be further concentrated in a cascading process in one or more additional stages, e.g. by adding a superabsorbent again or adding it to a superabsorbent again and incubating again, or by using a conventional method for concentrating target substances, e.g. by one of the methods given at the beginning. If only part of the liquid portion is removed as a second liquid volume, the target substance in the liquid portion of the mixture remaining after removal can be further concentrated by incubating again over a second period of time. Both variants of the process can be repeated several times so that a higher concentration of the target substance is obtained at each stage of the cascaded concentration.
- the further concentration of the target substance in the withdrawn second liquid volume can be carried out by means of a filtration, ultrafiltration or precipitation reaction technique.
- the further concentration of the target substance in the second liquid volume taken can also be carried out again - and optionally repeated in cascading fashion once or several times - by carrying out the following process steps:
- Fig. 1 is a schematic representation of the cascading concentration of a target substance in a liquid: a) liquid before adding a superabsorbent; b) liquid after adding a superabsorbent and incubating the mixture; c) Second volume of liquid removed from the mixture after adding another superabsorbent and incubating the mixture; d) Remaining mixture of liquid and superabsorbent, if applicable after removing the second volume of liquid and after incubating again;
- Further processing can, for example, be a quantitative and/or qualitative detection of the target substance in the liquid.
- the detection is carried out using a spectroscopic or microscopic method, for example.
- the degree of concentration and the speed of this process can be controlled very precisely by the type of superabsorbent used, by the amount used, or by the incubation time and/or the incubation temperature.
- the process can therefore easily solve the problem of concentration when producing nanoparticles.
- the process shown in Fig. 1 a and b does not require equipment such as ultracentrifuges, expensive ultrafiltration membranes, complex processes such as PEG precipitation or general precipitation reactions for concentrating nucleic acids, etc.
- the process is flexible in terms of the type of nanoparticles. universally applicable.
- Another advantage is that the superabsorbents are non-toxic and harmless and often biodegradable. The method according to the invention can therefore greatly simplify the investigation of low-concentration nanoparticles.
- a cascading concentration of the target substance is possible.
- the described method with the above-mentioned steps 1-3 can be used to concentrate the target substance.
- the second liquid volume 4 can be reduced in volume to re-concentrate the target substance. This can be done either by means of a conventional filtration or precipitation process or other conventional methods. Alternatively, the re-concentration of the target substance in the second liquid volume 4 can also be carried out, as shown in Fig.
- the liquid portion 6 remaining in the mixture with the superabsorbent 2 after removal of the second liquid volume 4 can be further reduced by incubating the mixture over a third period of time t3, as shown in Fig. 1 d.
- the latex nanoparticles were provided by the Fraunhofer Institute for Applied Polymer Research.
- the concentration of the latex particles in the stock solution was 2.02 M%.
- the particles were added to a 500 ml water sample, thereby producing a 1:10,000-fold dilution.
- the industrial process includes, for example, a sol-gel process, an emulsion polymerization process, or an interfacial polymerization process.
- the nanoparticles or nano-particles have an average size of less than one micrometer.
- the suspension can also be produced by crystallization or complex formation. Adding the emulsion or suspension to the superabsorbent results in the superabsorbent absorbing the liquid of the emulsion or suspension, so that the nanoparticles or nanoparticles are present in a high concentration in the remaining residue.
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Dispersion Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Colloid Chemistry (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022125807.6A DE102022125807A1 (de) | 2022-10-06 | 2022-10-06 | Verfahren zur Herstellung einer anthropogenen Zielsubstanz |
| PCT/EP2023/075134 WO2024074274A1 (de) | 2022-10-06 | 2023-09-13 | Verfahren zur herstellung einer anthropogenen zielsubstanz |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4598511A1 true EP4598511A1 (de) | 2025-08-13 |
Family
ID=88188778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23776273.7A Pending EP4598511A1 (de) | 2022-10-06 | 2023-09-13 | Verfahren zur herstellung einer anthropogenen zielsubstanz |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4598511A1 (de) |
| CN (1) | CN119907660A (de) |
| DE (1) | DE102022125807A1 (de) |
| WO (1) | WO2024074274A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005058453A1 (en) * | 2003-12-15 | 2005-06-30 | Preentec Ag | Method for the concentration and purification of biological compounds |
| DE102008023297B4 (de) | 2008-05-08 | 2014-06-26 | Aj Innuscreen Gmbh | Verfahren zur Anreicherung und Isolierung von Nukleinsäuren oder Viren |
| US20130231460A1 (en) * | 2010-09-08 | 2013-09-05 | Qiagen Gmbh | Method and device for concentrating target compounds |
| DE102017220514A1 (de) * | 2017-11-16 | 2019-05-16 | Unisensor Sensorsysteme Gmbh | Verfahren und Vorrichtung zur Detektion von Fremdstoffen in einem flüssigen Medium |
| CN111771121A (zh) * | 2018-02-26 | 2020-10-13 | 巴斯夫欧洲公司 | 测量超吸收剂渗透性的方法 |
| JP7482911B2 (ja) * | 2019-07-04 | 2024-05-14 | ベーアーエスエフ・エスエー | 超吸収体の特性を決定する方法 |
| EP4437098A1 (de) * | 2021-11-22 | 2024-10-02 | IST Innuscreen GmbH | Verfahren zur aufkonzentrierung mindestens einer zielsubstanz in einem flüssigkeitsvolumen |
| WO2023089078A1 (de) * | 2021-11-22 | 2023-05-25 | Ist Innuscreen Gmbh | Verfahren zur kaskadierbaren aufkonzentrierung mindestens einer zielsubstanz in einer probenflüssigkeit |
| DE102021134613A1 (de) * | 2021-12-23 | 2023-06-29 | Ist Innuscreen Gmbh | Verfahren zum Aufkonzentrieren mindestens einer biologischen Zielsubstanz in einer Probeflüssigkeit und Verfahren zur automatisierten Online-Detektion mindestens einer biologischen Zielsubstanz in einer Probeflüssigkeit |
-
2022
- 2022-10-06 DE DE102022125807.6A patent/DE102022125807A1/de active Pending
-
2023
- 2023-09-13 WO PCT/EP2023/075134 patent/WO2024074274A1/de not_active Ceased
- 2023-09-13 EP EP23776273.7A patent/EP4598511A1/de active Pending
- 2023-09-13 CN CN202380070425.7A patent/CN119907660A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024074274A1 (de) | 2024-04-11 |
| CN119907660A (zh) | 2025-04-29 |
| DE102022125807A1 (de) | 2024-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60104364T2 (de) | Organisch/Anorganisches Hybrid-Hydrogel und Verfahren zu seiner Herstellung | |
| DE69032263T2 (de) | Biomosaische Polymere und Verfahren zu deren Herstellung | |
| DE2238162C3 (de) | ||
| DE69807104T2 (de) | Formulierungen mit gesteuerter freisetzung | |
| DE69426568T2 (de) | Verfahren zur umhüllung von nanopartikeln oder -tröpfchen | |
| WO2020000008A1 (de) | Verfahren zur herstellung von ligninpartikeln | |
| CH653914A5 (de) | Verfahren zum einkapseln eines chemisch aktiven kernmaterials. | |
| EP2164384A2 (de) | Hydrogel-implantat für sensorik von metaboliten in körpergewebe | |
| DE1141263B (de) | Verfahren zur Herstellung einer lichtundurchlaessigen Koazervathuelle | |
| DE3831265C2 (de) | ||
| DE112008001157B4 (de) | Wärmebeständige bioaktive Zusammensetzung | |
| DE3432143A1 (de) | Verfahren zur einkapselung eines einzuhuellenden materials | |
| CH662363A5 (de) | Verfahren zum zuechten von zellen, die normalerweise nur eine mitose erfahren, wenn sie auf einem substrat fixiert sind. | |
| DE102022130567A1 (de) | Verfahren zur kaskadierbaren Aufkonzentrierung mindestens einer Zielsubstanz in einer Probenflüssigkeit | |
| DE10205872A1 (de) | Mikrokapsel insbesondere zur Immobilisierung von organischen oder anorganischen Feststoffen, Flüssigkeiten und/oder Gasen | |
| EP4598511A1 (de) | Verfahren zur herstellung einer anthropogenen zielsubstanz | |
| DE102022130395A1 (de) | Verfahren zur Aufkonzentrierung mindestens einer Zielsubstanz in einem Flüssigkeitsvolumen | |
| EP2875066B1 (de) | Sphärische, magnetisierbare polyvinylalkohol-mikropartikel, verfahren für deren herstellung, sowie deren verwendung | |
| DE102022125783A1 (de) | Verfahren zur Aufkonzentrierung mindestens einer anthropogenen Zielsubstanz in einer Probenflüssigkeit | |
| DE69812129T2 (de) | Gelmaterialien | |
| DE102011055861B4 (de) | Verfahren zur Herstellung monodisperser Pektin-Mikrogele unter Verwendung eines mikrofluidischen Systems | |
| DE68907091T2 (de) | Scleroglucan und Wirkstoff enthaltende pharmazeutische Tabletten und Kapselgranulate. | |
| DE2438436B2 (de) | Formgegenstand mit enzymatisch aktiver Oberfläche und Verfahren zu seiner Herstellung | |
| DE102005035374A1 (de) | Nanohohlkapseln | |
| EP0917492B1 (de) | Immobilisat und verfahren zum immobilisieren eines nutzmaterials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20250319 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20251223 |