Name: fabrication of gradient nanopattern by thermal nanoimprinting technique and screening of the response of human endothelial colony-forming cells
Uploaded: 2018-07-01T14:00:00
Description: Watch this Scientific Journal Video about Fabrication of Gradient Nanopattern by Thermal Nanoimprinting Technique and Screening of the Response of Human Endothelial Colony-forming Cells at JoVE.com

Dit werk werd gesteund door de fundamentele wetenschap Research Program via de nationale onderzoek Stichting van Korea (NRF) gefinancierd door het ministerie van onderwijs, wetenschap en technologie (MEST) [NRF-2015R1D1A1A01060397] en Bio & medische technologie-ontwikkeling Programma van de NRF gefinancierd door het ministerie van wetenschap, ICT & toekomst Planning [NRF-2017M3A9C6029563].

Deze studie werd goedgekeurd door de institutionele Review Board op Korea Anam universiteitsziekenhuis (IRB nr. ED170495). Alle procedures werden verricht overeenkomstig de verklaring van Helsinki en de latere wijzigingen ervan.
1. bereiding van aluminium (Al) substraat door het elektrolytisch polijsten
Let op: Elektrolytisch polijsten oplossing is bijtende en giftige. Draag persoonlijke beschermingsmiddelen zoals nitril handschoenen, bril en laborato...

<ol>
	<li>Dalby, M. J., Gadegaard, N., Oreffo, R. O. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Harnessing+nanotopography+and+integrin-matrix+interactions+to+influence+stem+cell+fate.">Harnessing nanotopography and integrin-matrix interactions to influence stem cell fate.</a> Nature materials. 13 (6), 558-569 (2014).</li><li>Qian, W., Gong, L., Cui, X., Zhang, Z., Bajpai, A., Liu, C., Castillo, A., Teo, J. C., Chen, W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Nanotopographic+Regulation+of+Human+Mesenchymal+Stem+Cell+Osteogenesis.">Nanotopographic Regulation of Human Mesenchymal Stem Cell Osteogenesis.</a> ACS Applied Materials &amp; Interfaces. 9 (48), 41794-41806 (2017).</li><li>Naganuma, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+relationship+between+cell+adhesion+force+activation+on+nano/micro-topographical+surfaces+and+temporal+dependence+of+cell+morphology.">The relationship between cell adhesion force activation on nano/micro-topographical surfaces and temporal dependence of cell morphology.</a> Nanoscale. 9 (35), 13171-13186 (2017).</li><li>Han, J., Lin, K. H., Chew, L. Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Study+on+the+regulation+of+focal+adesions+and+cortical+actin+by+matrix+nanotopography+in+3D+environment.">Study on the regulation of focal adesions and cortical actin by matrix nanotopography in 3D environment.</a> Journal of Physics: Condensed Matter. 29 (45), 455101 (2017).</li><li>Liu, X., Wang, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Three-dimensional+nano-biointerface+as+a+new+platform+for+guiding+cell+fate.">Three-dimensional nano-biointerface as a new platform for guiding cell fate.</a> Chemical Society Reviews. 43 (8), 2385-2401 (2014).</li><li>Turner, L. A., Dalby, M. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Nanotopography-potential+relevance+in+the+stem+cell+niche.">Nanotopography-potential relevance in the stem cell niche.</a> Biomaterials science. 2 (11), 1574-1594 (2014).</li><li>Driscoll, M. K., Sun, X., Guven, C., Fourkas, J. T., Losert, W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cellular+contact+guidance+through+dynamic+sensing+of+nanotopography.">Cellular contact guidance through dynamic sensing of nanotopography.</a> ACS nano. 8 (4), 3546-3555 (2014).</li><li>Yim, E. K., Darling, E. M., Kulangara, K., Guilak, F., Leong, K. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Nanotopography-induced+changes+in+focal+adhesions,+cytoskeletal+organization,+and+mechanical+properties+of+human+mesenchymal+stem+cells.">Nanotopography-induced changes in focal adhesions, cytoskeletal organization, and mechanical properties of human mesenchymal stem cells.</a> Biomaterials. 31 (6), 1299-1306 (2010).</li><li>Davis, G. E., Senger, D. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Endothelial+extracellular+matrix.">Endothelial extracellular matrix.</a> Circulation research. 97 (11), 1093-1107 (2005).</li><li>Nakayama, K. H., Surya, V. N., Gole, M., Walker, T. W., Yang, W., Lai, E. S., Ostrowski, M. A., Fuller, G. G., Dunn, A. R., Huang, N. F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Nanoscale+patterning+of+extracellular+matrix+alters+endothelial+function+under+shear+stress.">Nanoscale patterning of extracellular matrix alters endothelial function under shear stress.</a> Nano letters. 16 (1), 410-419 (2015).</li><li>Bettinger, C. J., Zhang, Z., Gerecht, S., Borenstein, J. T., Langer, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Enhancement+of+in+vitro+capillary+tube+formation+by+substrate+nanotopography.">Enhancement of in vitro capillary tube formation by substrate nanotopography.</a> Advanced materials. 20 (1), 99-103 (2008).</li><li>Katz, B. Z., Zamir, E., Bershadsky, A., Kam, Z., Yamada, K. M., Geiger, B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Physical+state+of+the+extracellular+matrix+regulates+the+structure+and+molecular+composition+of+cell-matrix+adhesions.">Physical state of the extracellular matrix regulates the structure and molecular composition of cell-matrix adhesions.</a> Molecular biology of the cell. 11 (3), 1047-1060 (2000).</li><li>Deanfield, J. E., Halcox, J. P., Rabelink, T. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Endothelial+function+and+dysfunction.">Endothelial function and dysfunction.</a> Circulation. 115 (10), 1285-1295 (2007).</li><li>Tajima, S., Chu, J., Li, S., Komvopoulos, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Differential+regulation+of+endothelial+cell+adhesion,+spreading,+and+cytoskeleton+on+low-density+polyethylene+by+nanotopography+and+surface+chemistry+modification+induced+by+argon+plasma+treatment.">Differential regulation of endothelial cell adhesion, spreading, and cytoskeleton on low-density polyethylene by nanotopography and surface chemistry modification induced by argon plasma treatment.</a> Journal of Biomedical Materials Research Part A. 84 (3), 828-836 (2008).</li><li>Mohiuddin, M., Pan, H. A., Hung, Y. C., Huang, G. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Control+of+growth+and+inflammatory+response+of+macrophages+and+foam+cells+with+nanotopography.">Control of growth and inflammatory response of macrophages and foam cells with nanotopography.</a> Nanoscale research letters. 7 (1), 394 (2012).</li><li>Kyle, D. J., Oikonomou, A., Hill, E., Bayat, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Development+and+functional+evaluation+of+biomimetic+silicone+surfaces+with+hierarchical+micro/nano-topographical+features+demonstrates+favourable+in+vitro+foreign+body+response+of+breast-derived+fibroblasts.">Development and functional evaluation of biomimetic silicone surfaces with hierarchical micro/nano-topographical features demonstrates favourable in vitro foreign body response of breast-derived fibroblasts.</a> Biomaterials. 52, 88-102 (2015).</li><li>Seo, H. R., Joo, H. J., Kim, D. H., Cui, L. H., Choi, S. C., Kim, J. H., Cho, S. W., Lee, K. B., Lim, D. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Nanopillar+Surface+Topology+Promotes+Cardiomyocyte+Differentiation+through+Cofilin-Mediated+Cytoskeleton+Rearrangement.">Nanopillar Surface Topology Promotes Cardiomyocyte Differentiation through Cofilin-Mediated Cytoskeleton Rearrangement.</a> ACS Applied Materials &amp; Interfaces. 9 (20), 16803-16812 (2017).</li><li>Hwang, J. H., Lee, D. H., Byun, M. R., Kim, A. R., Kim, K. M., Park, J. I., Oh, H. T., Hwang, E. S., Lee, K. B., Hong, J. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Nanotopological+plate+stimulates+osteogenic+differentiation+through+TAZ+activation.">Nanotopological plate stimulates osteogenic differentiation through TAZ activation.</a> Scientific Reports. 7 (1), 3632 (2017).</li><li>Bae, D., Moon, S. H., Park, B. G., Park, S. J., Jung, T., Kim, J. S., Lee, K. B., Chung, H. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Nanotopographical+control+for+maintaining+undifferentiated+human+embryonic+stem+cell+colonies+in+feeder+free+conditions.">Nanotopographical control for maintaining undifferentiated human embryonic stem cell colonies in feeder free conditions.</a> Biomaterials. 35 (3), 916-928 (2014).</li><li>Cui, L. H., Joo, H. J., Kim, D. H., Seo, H. R., Kim, J. S., Choi, S. C., Huang, L. H., Na, J. E., Lim, I. R., Kim, J. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Manipulation+of+the+response+of+human+endothelial+colony-forming+cells+by+focal+adhesion+assembly+using+gradient+nanopattern+plates.">Manipulation of the response of human endothelial colony-forming cells by focal adhesion assembly using gradient nanopattern plates.</a> Acta biomaterialia. 65, 272-282 (2017).</li><li>Lee, W., Park, S. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Porous+anodic+aluminum+oxide:+anodization+and+templated+synthesis+of+functional+nanostructures.">Porous anodic aluminum oxide: anodization and templated synthesis of functional nanostructures.</a> Chemical reviews. 114 (15), 7487-7556 (2014).</li><li>Masuda, H., Fukuda, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Ordered+metal+nanohole+arrays+made+by+a+two-step+replication+of+honeycomb+structures+of+anodic+alumina.">Ordered metal nanohole arrays made by a two-step replication of honeycomb structures of anodic alumina.</a> science. 268 (5216), 1466 (1995).</li><li>Masuda, H., Satoh, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Fabrication+of+gold+nanodot+array+using+anodic+porous+alumina+as+an+evaporation+mask.">Fabrication of gold nanodot array using anodic porous alumina as an evaporation mask.</a> Japanese Journal of Applied Physics. 35 (1B), L126 (1996).</li><li>Zaraska, L., Sulka, G. D., Jasku&#322;a, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+effect+of+n-alcohols+on+porous+anodic+alumina+formed+by+self-organized+two-step+anodizing+of+aluminum+in+phosphoric+acid.">The effect of n-alcohols on porous anodic alumina formed by self-organized two-step anodizing of aluminum in phosphoric acid.</a> Surface and Coatings Technology. 204 (11), 1729-1737 (2010).</li><li>Yang, K. Y., Kim, J. W., Byeon, K. J., Lee, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Selective+deposition+of+the+silver+nano-particles+using+patterned+the+hydrophobic+self-assembled+monolayer+patterns+and+zero-residual+nano-imprint+lithography.">Selective deposition of the silver nano-particles using patterned the hydrophobic self-assembled monolayer patterns and zero-residual nano-imprint lithography.</a> Microelectronic engineering. 84 (5), 1552-1555 (2007).</li><li>Park, B. G., Lee, W., Kim, J. S., Lee, K. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Superhydrophobic+fabrication+of+anodic+aluminum+oxide+with+durable+and+pitch-controlled+nanostructure.">Superhydrophobic fabrication of anodic aluminum oxide with durable and pitch-controlled nanostructure.</a> Colloids and Surfaces A: Physicochemical and Engineering Aspects. 370 (1), 15-19 (2010).</li></ol>

Fabricage van een AAO vaak lijdt aan gebreken zoals scheuren, onregelmatige vormen van poriën, en branden. De belangrijkste reden voor deze gebreken heet een elektrolytische verdeling, die sterk wordt beïnvloed door de aard van de metalen substraten worden geanodiseerd en de soortelijke weerstand van de elektrolyt21. Aangezien de soortelijke weerstand van de elektrolyt hangt af van de temperatuur, is elimineren hitte voortdurend van elektroden het kritieke punt de locatiespecifieke om temperatuu...

Onlangs, heeft de reactie van cellen door de fysieke stimulatie van oppervlakte topografie schijnwerpers geweest op het gebied van cel engineering1,2,3,4. Daarom geweest meer aandacht gericht op driedimensionale nanostructuren op de oppervlakte van cel bijlage5. Er werd gemeld dat het integrine, oftewel het oppervlak erkenning apparaat van de cel, de fysieke prikkel gedreven door de structuren van de micro-nano voor ECM t/m mechano-transductie6 verzendt. Deze mechanische stimulatie cel gedrag via contact begeleiding7 reguleert en induceert cytoskeletal reorganisatie om vorm, naast focal verklevingen en stijfheid van cellen8te veranderen.
Menselijke endotheliale voorlopercellen (hEPCs) in het lichaam werken nauw met de communicatie van de omliggende ECM-9. Dit geeft aan dat de fysische toestand van de ECM als een belangrijke parameter voor specifieke cel-matrix hechting complexvorming fungeert zoveel schuifspanning afgeleid van bloed stroom10. Het is gemeld dat de oppervlakte nanotopography de in vitro -vorming van uitgebreide capillair netwerken van hEPCs11 verbetert en dat een ECM/bio-oplosbare factor gecombineerd systeem kunt hEPCs om te herkennen van dysfunctionele substraten en bevordert wond genezing12,13. De relatie tussen ECM en hEPCs is echter duidelijk niet begrepen.
Hoewel veel onderzoekers geprobeerd te verduidelijken van de relatie tussen cel reacties en fysieke signalen van verschillende substraten14,15,16, deze studies gebruikt alleen de vaste grootte van een nanostructuur of nanopatterns met onregelmatige regelingen die een beperking tot verheldering van de relatie tussen de grootte van de cel en nanostructuur gedrag hebben. Het probleem hier is een gebrek aan geschikte instrumenten voor het screenen van cellulaire reacties die bestaande vervelend en iteratieve benaderingen om te zoeken naar de optimale omvang van de nanostructuur kunnen vervangen. Daarom is een eenvoudige techniek is vereist voor het screenen van cel reacties op fysieke stimulaties zonder herhaling.
Hier beschrijven we een methode die wordt gebruikt in onze vorige verslagen17,18,19 te produceren een kleurovergang nanopattern waarin de diameter van de gearrangeerde nanopillars geleidelijk verhoogt. Bovendien, beschreven we ook hoe te cultiveren en analyseren het gedrag van hECFCs op kleurovergang nanopattern platen om te bepalen van het effect van fysieke stimuli op de cellen. Een milde anodisatie, geleidelijke etsen en anti-steken laag coating methode werden gebruikt om het fabriceren van kleurovergang AAO schimmel. Door het aannemen van een thermisch inprenting lithografie techniek, werden identiek polystyreen verlopende nanopatterns geproduceerd op een kosteneffectieve en facile manier. Kleurovergang nanopatterns gebruikt, is het mogelijk om te bepalen welke grootte van nanostructuur heeft een groot effect op het gedrag van de cel in een set van experiment. Wij verwachten dat dit verloop nanopattern zal nuttig zijn bij het begrijpen van de mechanismen van de interactie tussen bloed-afgeleide hECFC of andere cellen en verschillende maten van nanostructuren.

<table border="1" fo:keep-together.within-page="1" fo:keep-with-next.within-page="always">
	<tbody>
		<tr>
			<td>Perchloric acid 60%</td>
			<td>Daejung Chemicals &#38; Metals</td>
			<td>6512-4100</td>
			<td></td>
		</tr>
		<tr>
			<td>Ethyl alcohol, absolute 99.9%</td>
			<td>Daejung Chemicals &#38; Metals</td>
			<td>4118-4100</td>
			<td></td>
		</tr>
		<tr>
			<td>Phosphoric acid 85%</td>
			<td>Daejung Chemicals &#38; Metals</td>
			<td>6532-4400</td>
			<td></td>
		</tr>
		<tr>
			<td>Methyl alcohol 99.5%</td>
			<td>Daejung Chemicals &#38; Metals</td>
			<td>5558-4400</td>
			<td></td>
		</tr>
		<tr>
			<td>Chromium(VI) oxide</td>
			<td>Daejung Chemicals &#38; Metals</td>
			<td>2558-4400</td>
			<td></td>
		</tr>
		<tr>
			<td>Sulfuric acid 95%</td>
			<td>Daejung Chemicals &#38; Metals</td>
			<td>7781-4100</td>
			<td></td>
		</tr>
		<tr>
			<td>Hydrogen peroxide 30%</td>
			<td>Daejung Chemicals &#38; Metals</td>
			<td>4104-4400</td>
			<td></td>
		</tr>
		<tr>
			<td>n-hexane 95%</td>
			<td>Daejung Chemicals &#38; Metals</td>
			<td>4081-4400</td>
			<td></td>
		</tr>
		<tr>
			<td>Toluene 99.5%</td>
			<td>Daejung Chemicals &#38; Metals</td>
			<td>8541-4400</td>
			<td></td>
		</tr>
		<tr>
			<td>(heptadecafluoro-1,1,2,2,-tetrahydrodecyl)dimethylchlorosilane</td>
			<td>Gelest</td>
			<td>SIH5840.4</td>
			<td>Moisture sensitive</td>
		</tr>
		<tr>
			<td>Methoxynonafluorobutane 99%</td>
			<td>Sigma aldrich</td>
			<td>464309</td>
			<td></td>
		</tr>
		<tr>
			<td>Collagen solution</td>
			<td>Stemcell</td>
			<td>#4902</td>
			<td></td>
		</tr>
		<tr>
			<td>Gelatin</td>
			<td>Sigma aldrich</td>
			<td>G1890</td>
			<td>Protein coating solution</td>
		</tr>
		<tr>
			<td>Ficoll-Paque</td>
			<td>GE Heathcare</td>
			<td>17-1440-03</td>
			<td>Hydrophilic polysaccharide solution</td>
		</tr>
		<tr>
			<td>EGM-2MV</td>
			<td>Lonza</td>
			<td>CC-3202</td>
			<td>Endothelial cell expansion medium</td>
		</tr>
		<tr>
			<td>Penicillin-Streptomycin</td>
			<td>Gibco</td>
			<td>15140-122</td>
			<td></td>
		</tr>
		<tr>
			<td>Phosphate buffered saline</td>
			<td>Gibco</td>
			<td>10010031</td>
			<td></td>
		</tr>
		<tr>
			<td>Fetal bovine serum</td>
			<td>Gibco</td>
			<td>12483-020</td>
			<td></td>
		</tr>
		<tr>
			<td>Paraformaldehyde</td>
			<td>Sigma aldrich</td>
			<td>P6148</td>
			<td></td>
		</tr>
		<tr>
			<td>Glutaraldehyde</td>
			<td>Sigma aldrich</td>
			<td>G5882-100ML</td>
			<td></td>
		</tr>
		<tr>
			<td>Osmium tetroxide</td>
			<td>Sigma aldrich</td>
			<td>201030-1G</td>
			<td></td>
		</tr>
		<tr>
			<td>Hexamethyldisilazane</td>
			<td>Sigma aldrich</td>
			<td>440191</td>
			<td></td>
		</tr>
		<tr>
			<td>Triton X-100</td>
			<td>Sigma aldrich</td>
			<td>X100-100ML</td>
			<td>Octylphenol ethoxylate&#160;</td>
		</tr>
		<tr>
			<td>Goat serum</td>
			<td>Gibco</td>
			<td>26050-088</td>
			<td></td>
		</tr>
		<tr>
			<td>anti-human vinculin primary antibody&#160;</td>
			<td>Sigma aldrich</td>
			<td>V9131</td>
			<td></td>
		</tr>
		<tr>
			<td>F-actin probe</td>
			<td>Molecular Probes</td>
			<td>A12379</td>
			<td>Fluorescence-conjugated phalloidin</td>
		</tr>
		<tr>
			<td>Alexa Fluor 488-conjugated anti-mouse&#160;IgG antibody</td>
			<td>Molecular Probes</td>
			<td>A11001</td>
			<td>Fluorescence-conjugated secondary antibody&#160;</td>
		</tr>
		<tr>
			<td>4&#39;,6-diamidino-2-phenylindole&#160;</td>
			<td>Sigma aldrich</td>
			<td>D9542</td>
			<td></td>
		</tr>
		<tr>
			<td>Mounting medium</td>
			<td>DAKO</td>
			<td>S3023</td>
			<td></td>
		</tr>
		<tr>
			<td>Anti-human vWF primary antibody&#160;</td>
			<td>DAKO</td>
			<td>A0082</td>
			<td></td>
		</tr>
		<tr>
			<td>Anti-human&#160;CD144 primary antibody&#160;</td>
			<td>BD Biosciences</td>
			<td>#555661</td>
			<td></td>
		</tr>
		<tr>
			<td>Eponate 12&#8482; Embedding Kit, with BDMA</td>
			<td>Ted Pella</td>
			<td>18012</td>
			<td>Epoxy resin</td>
		</tr>
		<tr>
			<td>Uranyl Acetate, 25g</td>
			<td>Ted Pella</td>
			<td>19481</td>
			<td></td>
		</tr>
		<tr>
			<td>Lead Citrate, Trihydrate, 10g</td>
			<td>Ted Pella</td>
			<td>19312</td>
			<td></td>
		</tr>
		<tr>
			<td>Ultra pure aluminum plate</td>
			<td>Goodfellow</td>
			<td>26050-088</td>
			<td></td>
		</tr>
		<tr>
			<td>Polystyrene sheet</td>
			<td>Goodfellow</td>
			<td>ST313120</td>
			<td></td>
		</tr>
		<tr>
			<td>8.0&#34; silicon wafer</td>
			<td>Siltron</td>
			<td>29-01024-03</td>
			<td>Single side polished, 725 &#181;m thick</td>
		</tr>
		<tr>
			<td>Vacuum desiccator, 4.4 L</td>
			<td>Kartell</td>
			<td>KA.230</td>
			<td></td>
		</tr>
		<tr>
			<td>Vacuum pump</td>
			<td>Vacuumer</td>
			<td>V3.VOP100</td>
			<td></td>
		</tr>
		<tr>
			<td>Power supply</td>
			<td>Unicorntech</td>
			<td>UDP-3003</td>
			<td></td>
		</tr>
		<tr>
			<td>Magnetic stirrer</td>
			<td>Daihan scientific</td>
			<td>SL.SMS03022</td>
			<td></td>
		</tr>
		<tr>
			<td>Overhead stirrer</td>
			<td>Daihan scientific</td>
			<td>HT120DX</td>
			<td></td>
		</tr>
		<tr>
			<td>Circulator</td>
			<td>Daihan scientific</td>
			<td>WCR-P12</td>
			<td></td>
		</tr>
		<tr>
			<td>Linear moving stage</td>
			<td>Zaber</td>
			<td>A-LSQ300A-E01-KT07</td>
			<td></td>
		</tr>
		<tr>
			<td>Angle bracket, 90 degrees</td>
			<td>Zaber</td>
			<td>AB90M</td>
			<td>Accessory of the linear moving stage</td>
		</tr>
		<tr>
			<td>PMP forcep, 145 mm</td>
			<td>Vitlab</td>
			<td>67995</td>
			<td>Nonmetallic tweezer</td>
		</tr>
		<tr>
			<td>PTFE beaker, 250 mL</td>
			<td>Cowie</td>
			<td>CW007.25</td>
			<td></td>
		</tr>
		<tr>
			<td>Ultrasonic cleaner</td>
			<td>Branson</td>
			<td>B2510MTH</td>
			<td></td>
		</tr>
		<tr>
			<td>PCB cutter</td>
			<td>Hozan Tool Industrial</td>
			<td>K-110</td>
			<td></td>
		</tr>
		<tr>
			<td>Nanoimprint device</td>
			<td>Nanonex</td>
			<td>NX-2000</td>
			<td></td>
		</tr>
		<tr>
			<td>Oxygen plasma generator</td>
			<td>Femto Science</td>
			<td>CUTE</td>
			<td></td>
		</tr>
		<tr>
			<td>Low temperature sterilizer</td>
			<td>Lowtem</td>
			<td>Crystal 50</td>
			<td></td>
		</tr>
		<tr>
			<td>CO2 Incubator</td>
			<td>Panasonic</td>
			<td>MCO-18AC</td>
			<td></td>
		</tr>
		<tr>
			<td>Confoal laser scanning microscope</td>
			<td>Carl Zeiss</td>
			<td>LSM700</td>
			<td></td>
		</tr>
		<tr>
			<td>Scanning electron microscope</td>
			<td>JEOL</td>
			<td>JSM6701</td>
			<td></td>
		</tr>
		<tr>
			<td>Transmission electron microscope</td>
			<td>Hitachi</td>
			<td>H-7500</td>
			<td></td>
		</tr>
	</tbody>
</table>

fabrication of gradient nanopattern by thermal nanoimprinting technique and screening of the response of human endothelial colony-forming cells

Nanotopography kan worden gevonden in verschillende extracellulaire matrices (ECMs) rond het lichaam en is bekend dat belangrijke regelgevende acties op cellulaire reacties. Het is echter moeilijk om te bepalen van de relatie tussen de grootte van een nanostructuur en de reacties van de cellen als gevolg van het gebrek aan goede screening tools. Hier, laten we de ontwikkeling van reproduceerbaar zijn en kosteneffectieve verlopende nanopattern platen voor het manipuleren van cellulaire reacties. Met behulp van anodic aluminium oxide (AAO) als een meester mal, verlopende nanopattern platen met nanopillars van toenemende diameter bereiken [120-200 nm (GP 120/200), 200-280 nm (GP 200/280) en 280-360 nm (GP 280/360)] werden vervaardigd door een thermisch inprenting techniek. Deze verlopende nanopattern platen werden ontworpen om na te bootsen de verschillende maten van nanotopography in de ECM en werden gebruikt om het scherm van de antwoorden van menselijke endothelial kolonie-vormende cellen (hECFCs). In dit protocol beschrijven we de stapsgewijze procedure voor het fabriceren van de gradiënt nanopattern platen voor cel engineering, technieken voor het cultiveren van hECFCs uit menselijk perifere bloed en kweken van hECFCs op nanopattern platen.

Figuur 1 toont SEM beelden van de gefabriceerde kleurovergang AAO mallen volgens hun type en positie. Figuur 2 toont SEM beelden van kleurovergang nanopattern platen met regelmatige-afgerond nanopillars en Figuur 3 is kwantificering gegevens met de diameter van de nanopillar. Tabel 1 bevat de kenmerken van het gefabriceerde nanopillars.
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Watch this Scientific Journal Video about Fabrication of Gradient Nanopattern by Thermal Nanoimprinting Technique and Screening of the Response of Human Endothelial Colony-forming Cells at JoVE.com

Fabrication of Gradient Nanopattern by Thermal Nanoimprinting Technique and Screening of the Response of Human Endothelial Colony-forming Cells

Hier presenteren we een protocol voor de fabricage van kleurovergang nanopattern platen via thermische nanoimprinting en de methode van het screenen van reacties van menselijke endotheliale voorlopercellen op de nanostructuren. Met behulp van de beschreven technologie, is het mogelijk om te produceren van een steiger die fysieke stimuli cel gedrag kunt bewerken.

Fabricage van kleurovergang Nanopattern door thermische Nanoimprinting techniek en Screening van de reactie van menselijke Endothelial kolonie-vormende cellen

Nanotopography can be found in various extracellular matrices (ECMs) around the body and is known to have important regulatory actions upon cellular ...

Research

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