KR100633273B1 - 다공성 규소를 사용하여 물질을 세포로 이동시키는 방법 - Google Patents
다공성 규소를 사용하여 물질을 세포로 이동시키는 방법 Download PDFInfo
- Publication number
- KR100633273B1 KR100633273B1 KR1020017001028A KR20017001028A KR100633273B1 KR 100633273 B1 KR100633273 B1 KR 100633273B1 KR 1020017001028 A KR1020017001028 A KR 1020017001028A KR 20017001028 A KR20017001028 A KR 20017001028A KR 100633273 B1 KR100633273 B1 KR 100633273B1
- Authority
- KR
- South Korea
- Prior art keywords
- porous
- microneedle
- polycrystalline silicon
- cell
- silicon
- 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.)
- Expired - Lifetime
Links
- 229910021426 porous silicon Inorganic materials 0.000 title claims abstract description 102
- 239000000463 material Substances 0.000 title claims abstract description 61
- 239000000126 substance Substances 0.000 claims abstract description 55
- 238000000034 method Methods 0.000 claims abstract description 52
- 230000000975 bioactive effect Effects 0.000 claims abstract description 26
- 239000011148 porous material Substances 0.000 claims abstract description 18
- 229910000389 calcium phosphate Inorganic materials 0.000 claims abstract description 16
- 239000001506 calcium phosphate Substances 0.000 claims abstract description 16
- 235000011010 calcium phosphates Nutrition 0.000 claims abstract description 16
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 claims abstract description 16
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 27
- 239000012530 fluid Substances 0.000 claims description 15
- 239000002244 precipitate Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
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- 239000002344 surface layer Substances 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 49
- 229910052710 silicon Inorganic materials 0.000 abstract description 43
- 239000010703 silicon Substances 0.000 abstract description 43
- 230000000149 penetrating effect Effects 0.000 abstract description 16
- 229920001410 Microfiber Polymers 0.000 abstract description 11
- 239000003658 microfiber Substances 0.000 abstract description 11
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- 108020004414 DNA Proteins 0.000 description 39
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- 238000004520 electroporation Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 239000011856 silicon-based particle Substances 0.000 description 7
- 235000012431 wafers Nutrition 0.000 description 7
- 238000001727 in vivo Methods 0.000 description 5
- 238000003491 array Methods 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 210000004940 nucleus Anatomy 0.000 description 4
- 102000004169 proteins and genes Human genes 0.000 description 4
- 108090000623 proteins and genes Proteins 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000012620 biological material Substances 0.000 description 3
- 210000000170 cell membrane Anatomy 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 210000004962 mammalian cell Anatomy 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 239000013598 vector Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 238000002048 anodisation reaction Methods 0.000 description 2
- 230000008512 biological response Effects 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 238000000975 co-precipitation Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 108020004707 nucleic acids Proteins 0.000 description 2
- 102000039446 nucleic acids Human genes 0.000 description 2
- 150000007523 nucleic acids Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000124008 Mammalia Species 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 210000004102 animal cell Anatomy 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000004166 bioassay Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 210000003855 cell nucleus Anatomy 0.000 description 1
- 108091092356 cellular DNA Proteins 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
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- 150000002500 ions Chemical group 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 239000002502 liposome Substances 0.000 description 1
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- 230000001404 mediated effect Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000000520 microinjection Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000002773 nucleotide Substances 0.000 description 1
- 125000003729 nucleotide group Chemical group 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000004962 physiological condition Effects 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
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- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000001890 transfection Methods 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
Images
Classifications
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- 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
- C12N15/87—Introduction of foreign genetic material using processes not otherwise provided for, e.g. co-transformation
-
- 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
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
- A61K9/0021—Intradermal administration, e.g. through microneedle arrays, needleless injectors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
- A61M37/0015—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin by using microneedles
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M35/00—Means for application of stress for stimulating the growth of microorganisms or the generation of fermentation or metabolic products; Means for electroporation or cell fusion
-
- 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
- C12N15/87—Introduction of foreign genetic material using processes not otherwise provided for, e.g. co-transformation
- C12N15/89—Introduction of foreign genetic material using processes not otherwise provided for, e.g. co-transformation using microinjection
-
- 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
- C12N15/87—Introduction of foreign genetic material using processes not otherwise provided for, e.g. co-transformation
- C12N15/89—Introduction of foreign genetic material using processes not otherwise provided for, e.g. co-transformation using microinjection
- C12N15/895—Introduction of foreign genetic material using processes not otherwise provided for, e.g. co-transformation using microinjection using biolistic methods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
- A61M37/0015—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin by using microneedles
- A61M2037/0046—Solid microneedles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
- A61M37/0015—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin by using microneedles
- A61M2037/0053—Methods for producing microneedles
Landscapes
- Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Zoology (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- Biophysics (AREA)
- Plant Pathology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Dermatology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Medical Informatics (AREA)
- Sustainable Development (AREA)
- Cell Biology (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Silicon Compounds (AREA)
- Electrotherapy Devices (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
- Medicinal Preparation (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9815819.9 | 1998-07-22 | ||
| GBGB9815819.9A GB9815819D0 (en) | 1998-07-22 | 1998-07-22 | Transferring materials into cells and a microneedle array |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20010072050A KR20010072050A (ko) | 2001-07-31 |
| KR100633273B1 true KR100633273B1 (ko) | 2006-10-16 |
Family
ID=10835869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020017001028A Expired - Lifetime KR100633273B1 (ko) | 1998-07-22 | 1999-07-22 | 다공성 규소를 사용하여 물질을 세포로 이동시키는 방법 |
Country Status (15)
| Country | Link |
|---|---|
| US (2) | US6770480B1 (enExample) |
| EP (3) | EP1098957B1 (enExample) |
| JP (1) | JP4585119B2 (enExample) |
| KR (1) | KR100633273B1 (enExample) |
| CN (1) | CN1252275C (enExample) |
| AT (1) | ATE223479T1 (enExample) |
| AU (1) | AU753542B2 (enExample) |
| CA (1) | CA2337331C (enExample) |
| DE (1) | DE69902794T2 (enExample) |
| DK (1) | DK1098957T3 (enExample) |
| ES (2) | ES2179666T3 (enExample) |
| GB (1) | GB9815819D0 (enExample) |
| HK (1) | HK1039146B (enExample) |
| NZ (1) | NZ509142A (enExample) |
| WO (1) | WO2000005339A1 (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9937129B2 (en) | 2007-04-16 | 2018-04-10 | The Regents Of The University Of California | Materials and methods for delivering compositions to selected tissues |
Families Citing this family (123)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9808052D0 (en) | 1998-04-17 | 1998-06-17 | Secr Defence | Implants for administering substances and methods of producing implants |
| GB9815819D0 (en) * | 1998-07-22 | 1998-09-16 | Secr Defence | Transferring materials into cells and a microneedle array |
| GB0008494D0 (en) * | 2000-04-07 | 2000-05-24 | Secr Defence | Microprojectile delivery system |
| GB2363115A (en) * | 2000-06-10 | 2001-12-12 | Secr Defence | Porous or polycrystalline silicon orthopaedic implants |
| US6533949B1 (en) * | 2000-08-28 | 2003-03-18 | Nanopass Ltd. | Microneedle structure and production method therefor |
| US7828827B2 (en) | 2002-05-24 | 2010-11-09 | Corium International, Inc. | Method of exfoliation of skin using closely-packed microstructures |
| US7108681B2 (en) * | 2000-10-16 | 2006-09-19 | Corium International, Inc. | Microstructures for delivering a composition cutaneously to skin |
| US7131987B2 (en) | 2000-10-16 | 2006-11-07 | Corium International, Inc. | Microstructures and method for treating and conditioning skin which cause less irritation during exfoliation |
| US6902933B2 (en) | 2000-11-03 | 2005-06-07 | Regents Of The University Of Michigan | Surface transfection and expression procedure |
| KR20030093185A (ko) * | 2000-11-03 | 2003-12-06 | 리젠츠 오브 더 유니버시티 오브 미시간 | 표면 형질감염 및 발현 방법 |
| US6897067B2 (en) | 2000-11-03 | 2005-05-24 | Regents Of The University Of Michigan | Surface transfection and expression procedure |
| WO2002068957A1 (en) * | 2001-02-21 | 2002-09-06 | University Of Rochester | Microcavity biosensor, methods of making, and uses thereof |
| GB0104383D0 (en) | 2001-02-22 | 2001-04-11 | Psimedica Ltd | Cancer Treatment |
| US6663820B2 (en) * | 2001-03-14 | 2003-12-16 | The Procter & Gamble Company | Method of manufacturing microneedle structures using soft lithography and photolithography |
| WO2002088165A1 (en) * | 2001-04-30 | 2002-11-07 | Doranz Benjamin J | Elucidation of gene function |
| US20040087992A1 (en) * | 2002-08-09 | 2004-05-06 | Vladimir Gartstein | Microstructures for delivering a composition cutaneously to skin using rotatable structures |
| US7429258B2 (en) | 2001-10-26 | 2008-09-30 | Massachusetts Institute Of Technology | Microneedle transport device |
| US6908453B2 (en) * | 2002-01-15 | 2005-06-21 | 3M Innovative Properties Company | Microneedle devices and methods of manufacture |
| JP2004121064A (ja) * | 2002-10-01 | 2004-04-22 | Jfe Steel Kk | 遺伝子制御用のセラミック被覆針 |
| WO2003092785A1 (en) * | 2002-04-30 | 2003-11-13 | Morteza Shirkhanzadeh | Arrays of microneedles comprising porous calcium phosphate coating and bioactive agents |
| US6864692B1 (en) * | 2002-06-20 | 2005-03-08 | Xsilogy, Inc. | Sensor having improved selectivity |
| MXPA05000597A (es) | 2002-07-19 | 2005-04-28 | 3M Innovative Properties Co | Dispositivos de microaguja y aparatos de administracion por microaguja. |
| US7244513B2 (en) * | 2003-02-21 | 2007-07-17 | Nano-Proprietary, Inc. | Stain-etched silicon powder |
| US7578954B2 (en) * | 2003-02-24 | 2009-08-25 | Corium International, Inc. | Method for manufacturing microstructures having multiple microelements with through-holes |
| WO2004092369A1 (ja) * | 2003-04-11 | 2004-10-28 | Riken | マイクロインジェクション方法および装置 |
| CA2536249A1 (en) | 2003-08-25 | 2005-03-10 | 3M Innovative Properties Company | Delivery of immune response modifier compounds |
| GB0402131D0 (en) | 2004-01-30 | 2004-03-03 | Isis Innovation | Delivery method |
| US20070191761A1 (en) * | 2004-02-23 | 2007-08-16 | 3M Innovative Properties Company | Method of molding for microneedle arrays |
| US7611481B2 (en) | 2004-03-24 | 2009-11-03 | Corium International, Inc. | Transdermal delivery device |
| US7591806B2 (en) * | 2004-05-18 | 2009-09-22 | Bai Xu | High-aspect-ratio microdevices and methods for transdermal delivery and sampling of active substances |
| EP1817003B1 (en) | 2004-10-29 | 2018-02-21 | The Regents of The University of California | Porous silicon microparticles for drug delivery to the eye |
| CA2589733C (en) * | 2004-12-07 | 2014-02-11 | 3M Innovative Properties Company | Method of molding a microneedle |
| US20060276047A1 (en) * | 2005-03-14 | 2006-12-07 | University Of Rochester | Macroporous silicon microcavity with tunable pore size |
| US7569202B2 (en) * | 2005-05-09 | 2009-08-04 | Vesta Research, Ltd. | Silicon nanosponge particles |
| US8048017B2 (en) * | 2005-05-18 | 2011-11-01 | Bai Xu | High-aspect-ratio microdevices and methods for transdermal delivery and sampling of active substances |
| US8043250B2 (en) * | 2005-05-18 | 2011-10-25 | Nanomed Devices, Inc. | High-aspect-ratio microdevices and methods for transdermal delivery and sampling of active substances |
| WO2006138719A2 (en) * | 2005-06-17 | 2006-12-28 | Georgia Tech Research Corporation | Coated microstructures and method of manufacture thereof |
| ATE477833T1 (de) * | 2005-06-27 | 2010-09-15 | 3M Innovative Properties Co | Mikronadelkartuschenanordnung |
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