Name: rapid, scalable assembly and loading of bioactive proteins and immunostimulants into diverse synthetic nanocarriers via flash nanoprecipitation
Uploaded: 2018-08-11T14:00:00
Description: Watch this Scientific Journal Video about Rapid, Scalable Assembly and Loading of Bioactive Proteins and Immunostimulants into Diverse Synthetic Nanocarriers Via Flash Nanoprecipitation at JoVE.com

Vi anerkender personale og instrumentation støtte fra strukturel biologi anlægget ved Northwestern University. Støtte fra R.H. Lurie omfattende Cancer Center i det nordvestlige Universitet og Northwestern University strukturel biologi faciliteter er anerkendt. Gatan K2 direkte elektron detektor blev købt med midler fra Chicago biomedicinsk konsortiet med støtte fra Searle midler på The Chicago Fællesskabet Trust. Vi takker også følgende faciliteter på Northwestern University: Keck tværfaglige overflade videnskab facilitet, strukturel biologi faciliteten, den biologiske Imaging facilitet, Center for avanceret Molekylær Imaging og analytisk Bionanotechnology udstyr kerne. Denne forskning blev støttet af National Science Foundation grant 1453576, nationale institutter for Health direktør ny Innovator pris 1DP2HL132390-01, Center for regenerativ Nanomedicin katalysator Award og 2014 McCormick katalysator Award. SDA var delvist understøttet af NIH predoctoral bioteknologi uddannelse Grant T32GM008449.

1. Sammenfatning af Poly(ethylene glycol) -blok-poly (propylen sulfid)-Thiol
<ol><li>Syntetisere methoxy-poly(ethylene glycol) mesylat (Mn: 750) (MeO-PIND17-Ms, jeg).<ol>
<li>10 g MeO-PIND17-OH i 200 mL 100% toluen inden for en 3-hals rund bund kolbe (RBF) opløses under magnetiske omrøring på 600 rpm.</li>
		<li>Tilsluttes en Dean-Stark apparater, selv knyttet til en kondensator 3-hals RBF, holde hele systemet under anvendelse af inaktiv gas, enten nitrogen eller argon...

<ol>
	<li>Stano, A., Scott, E. A., Dane, K. Y., Swartz, M. A., Hubbell, J. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Tunable+T+cell+immunity+towards+a+protein+antigen+using+polymersomes+vs.+solid-core+nanoparticles.">Tunable T cell immunity towards a protein antigen using polymersomes vs. solid-core nanoparticles.</a> Biomaterials. 34 (17), 4339-4346 (2013).</li><li>Discher, B. M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Polymersomes:+tough+vesicles+made+from+diblock+copolymers.">Polymersomes: tough vesicles made from diblock copolymers.</a> Science. 284 (5417), 1143-1146 (1999).</li><li>Vasdekis, A. E., Scott, E. A., O'Neil, C. P., Psaltis, D., Hubbell, J. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Precision+intracellular+delivery+based+on+optofluidic+polymersome+rupture.">Precision intracellular delivery based on optofluidic polymersome rupture.</a> ACS Nano. 6 (9), 7850-7857 (2012).</li><li>Yi, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Tailoring+Nanostructure+Morphology+for+Enhanced+Targeting+of+Dendritic+Cells+in+Atherosclerosis.">Tailoring Nanostructure Morphology for Enhanced Targeting of Dendritic Cells in Atherosclerosis.</a> ACS Nano. 10 (12), 11290-11303 (2016).</li><li>Shum, H. C., Kim, J. W., Weitz, D. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Microfluidic+fabrication+of+monodisperse+biocompatible+and+biodegradable+polymersomes+with+controlled+permeability.">Microfluidic fabrication of monodisperse biocompatible and biodegradable polymersomes with controlled permeability.</a> Journal of the American Chemical Society. 130 (29), 9543-9549 (2008).</li><li>Pessi, J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Microfluidics-assisted+engineering+of+polymeric+microcapsules+with+high+encapsulation+efficiency+for+protein+drug+delivery.">Microfluidics-assisted engineering of polymeric microcapsules with high encapsulation efficiency for protein drug delivery.</a> International Journal of Pharmaceutics. 472 (1-2), 82-87 (2014).</li><li>O'Neil, C. P., Suzuki, T., Demurtas, D., Finka, A., Hubbell, J. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+novel+method+for+the+encapsulation+of+biomolecules+into+polymersomes+via+direct+hydration.">A novel method for the encapsulation of biomolecules into polymersomes via direct hydration.</a> Langmuir. 25 (16), 9025-9029 (2009).</li><li>Saad, W. S., Prud'homme, R. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Principles+of+nanoparticle+formation+by+flash+nanoprecipitation.">Principles of nanoparticle formation by flash nanoprecipitation.</a> Nano Today. 11 (2), 212-227 (2016).</li><li>Johnson, B. K., Prud'homme, R. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mechanism+for+rapid+self-assembly+of+block+copolymer+nanoparticles.">Mechanism for rapid self-assembly of block copolymer nanoparticles.</a> Physical Review Letters. 91 (11), 118302 (2003).</li><li>Han, J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+simple+confined+impingement+jets+mixer+for+flash+nanoprecipitation.">A simple confined impingement jets mixer for flash nanoprecipitation.</a> Journal of Pharmaceutical Sciences. 101 (10), 4018-4023 (2012).</li><li>Allen, S., Osorio, O., Liu, Y. G., Scott, E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Facile+assembly+and+loading+of+theranostic+polymersomes+via+multi-impingement+flash+nanoprecipitation.">Facile assembly and loading of theranostic polymersomes via multi-impingement flash nanoprecipitation.</a> Journal of Controlled Release. 262, 91-103 (2017).</li><li>Bobbala, S., Allen, S. D., Scott, E. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Flash+nanoprecipitation+permits+versatile+assembly+and+loading+of+polymeric+bicontinuous+cubic+nanospheres.">Flash nanoprecipitation permits versatile assembly and loading of polymeric bicontinuous cubic nanospheres.</a> Nanoscale. 10 (11), 5078-5088 (2018).</li><li>Allen, S. D., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Polymersomes+scalably+fabricated+via+flash+nanoprecipitation+are+non-toxic+in+non-human+primates+and+associate+with+leukocytes+in+the+spleen+and+kidney+following+intravenous+administration.">Polymersomes scalably fabricated via flash nanoprecipitation are non-toxic in non-human primates and associate with leukocytes in the spleen and kidney following intravenous administration.</a> Nano Research. , (2018).</li><li>Karabin, N. B., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Sustained+micellar+delivery+via+inducible+transitions+in+nanostructure+morphology.">Sustained micellar delivery via inducible transitions in nanostructure morphology.</a> Nature Communications. 9 (1), 624 (2018).</li><li>Mascoli, C. C., Weary, M. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Limulus+amebocyte+lysate+(LAL)+test+for+detecting+pyrogens+in+parenteral+injectable+products+and+medical+devices:+advantages+to+manufacturers+and+regulatory+officials.">Limulus amebocyte lysate (LAL) test for detecting pyrogens in parenteral injectable products and medical devices: advantages to manufacturers and regulatory officials.</a> Journal of the Parenteral Drug Association. 33 (2), 81-95 (1979).</li><li>Pustulka, K. M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Flash+nanoprecipitation:+particle+structure+and+stability.">Flash nanoprecipitation: particle structure and stability.</a> Molecular Pharmaceutics. 10 (11), 4367-4377 (2013).</li><li>Tang, C., Amin, D., Messersmith, P. B., Anthony, J. E., Prud'homme, R. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Polymer+directed+self-assembly+of+pH-responsive+antioxidant+nanoparticles.">Polymer directed self-assembly of pH-responsive antioxidant nanoparticles.</a> Langmuir. 31 (12), 3612-3620 (2015).</li><li>Gindy, M. E., Panagiotopoulos, A. Z., Prud'homme, R. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Composite+block+copolymer+stabilized+nanoparticles:+simultaneous+encapsulation+of+organic+actives+and+inorganic+nanostructures.">Composite block copolymer stabilized nanoparticles: simultaneous encapsulation of organic actives and inorganic nanostructures.</a> Langmuir. 24 (1), 83-90 (2008).</li></ol>

Vi har givet detaljerede instruktioner til den hurtige fabrikation af polymersomes ved hjælp af PIND17-bl- PPS35-SH som diblock copolymer. Vesikulær polymersomes er den primære samlede morfologi samlet på dette forhold på hydrofile PIND og hydrofobe PPS blok molekylvægt. Når berørt flere gange, de har en diameter og polydispersity, der matcher polymersomes ekstruderet gennem en 200 nm membran efter at være blevet dannet via tyndfilm hydrering. Denne protokol eliminerer der...

Nanocarriers giver mulighed for kontrolleret levering af små og makromolekylære last, herunder aktive enheder, hvis ikke indkapslet, ville være enten meget nedbrydeligt og/eller for hydrofobe for administration i vivo. Af nanocarrier morfologier regelmæssigt fabrikeret, tilbyde polymere vesikler svarer til Liposomer (også kaldet polymersomes) evnen til at samtidig indlæse hydrofile og hydrofobe cargo1,2. Trods deres lovende fordele er polymersomes stadig sjældne i kliniske applikationer skyldes, dels at flere centrale udfordringer i deres fremstilling. Til klinisk brug skal polymersome formuleringer foretages i store, sterile og konsekvent partier.
En række teknikker kan bruges til form polymersomes fra diblock copolymer, såsom poly(ethylene glycol) -blok-poly (propylen sulfid) (PIND -bl- PPS), som indeholder opløsningsmiddel dispersion3, tynd film rehydrering1 , 4, mikrofluidik 5,6, og direkte hydrering7. Opløsningsmiddel spredning involverer lang inkubationstid gange i nærværelse af organiske opløsningsmidler, som kan denaturere nogle bioaktive nyttelast, ligesom proteiner. Tyndfilm rehydrering tilbyder ikke kontrol over polydispersity af den dannede polymersomes, ofte kræver dyre og tidskrævende ekstrudering teknikker til at opnå acceptable monodispersity. Både microfluids og direkte hydrering er desuden vanskeligt at skala til større produktionsmængder. Af de forskellige nanocarrier fabrikation metoder giver flash nanoprecipitation (FNP) mulighed for at foretage omfattende og reproducerbare formuleringer8,9,10. Mens FNP var tidligere forbeholdt formuleringen af solid core nanopartikler, vores lab har for nylig udvidet brug af FNP medtage konsekvent dannelsen af forskelligartede PIND -bl- PPS nanostrukturer morfologier11, 12, herunder polymersomes11 og bicontinuous nanospheres12. Vi fandt at FNP var i stand til at danne monodisperse formuleringer af polymersomes uden behov for ekstrudering, hvilket resulterer i overlegen polydispersity indeksværdier sammenlignet med ikke-ekstruderet polymersomes dannet af tynde film rehydrering og opløsningsmiddel dispersion 11. Bicontinuous nanospheres, med deres store hydrofobe domæner, ikke var i stand til at være dannet af tynde film rehydrering, trods danner under en række opløsningsmidler betingelser med FNP12.
Her, vi giver en detaljeret beskrivelse til syntese af PEG -bl- PPS diblock copolymer anvendes i polymersome dannelse, begrænset impingement jetfly (CIJ) mixer brugt til FNP, FNP protokol sig selv, og gennemførelsen af et automatiseret system til at reducere bruger variabilitet. Inkluderet er oplysninger om, hvordan til at sterilisere systemet tilstrækkeligt til at producere endotoxin-fri formuleringer til brug i vivoog repræsentative data vedrørende karakterisering af polymersomes dannet af FNP. Med disse oplysninger, vil læsere med interesse i at udnytte polymersomes for in vitro- og i vivo arbejde kunne fremstille deres egen sterile, monodisperse formuleringer. Læsere med erfaring i nanocarrier formuleringer og med polymer syntese ekspertise vil være i stand til hurtigt teste deres egen polymer systemer bruger FNP som en potentiel alternativ til deres nuværende formulering teknikker. Derudover kan de protokoller er beskrevet heri bruges som pædagogiske redskaber til formulering af nanocarriers i nanoteknologi laboratorium kurser.

<table>
	<tbody>
		<tr>
			<td>CanaKit Raspberry Pi 3 Ultimate Starter Kit - 32 GB Edition</td>
			<td>CanaKit</td>
			<td>UPC 682710991511</td>
			<td></td>
		</tr>
		<tr>
			<td>Linear Bearing Platform (Small) - 8mm Diameter</td>
			<td>Adafruit</td>
			<td>1179</td>
			<td></td>
		</tr>
		<tr>
			<td>Linear Motion 8 mm Shaft, 330 mm Length, Chrome Plated, Case Hardened, Metric</td>
			<td>VXB</td>
			<td>kit11868</td>
			<td></td>
		</tr>
		<tr>
			<td>Linear Rail Shaft Guide/Support - 8 mm Diameter</td>
			<td>Adafruit</td>
			<td>1182</td>
			<td></td>
		</tr>
		<tr>
			<td>Manual-Position Precision Slide 4.5&#34; Stroke, 15 lb load capacity</td>
			<td>McMaster-Carr</td>
			<td>5236A16</td>
			<td></td>
		</tr>
		<tr>
			<td>MTPM-P10-1JK43 Iron Horse DC motor</td>
			<td>Iron Horse</td>
			<td>MTPM-P10-1JK43</td>
			<td></td>
		</tr>
		<tr>
			<td>Official Raspberry Pi Foundation 7&#34; Touchscreen LCD Display</td>
			<td>Raspberry Pi</td>
			<td>B0153R2A9I (ASIN)</td>
			<td></td>
		</tr>
		<tr>
			<td>PicoBorg Reverse - Advanced motor control for Raspberry Pi</td>
			<td>PiBorg</td>
			<td>BURN-0011</td>
			<td></td>
		</tr>
		<tr>
			<td>Pololu Carrier with Sharp GP2Y0D810Z0F Digital Distance Sensor 10cm</td>
			<td>Pololu</td>
			<td>1134</td>
			<td></td>
		</tr>
		<tr>
			<td>Ruland PSR16-5-4-A Set Screw Beam Coupling, Polished Aluminum, Inch, 5/16&#34; Bore A Diameter, 1/4&#34; Bore B Diameter, 1&#34; OD, 1-1/4&#34; Length, 44 lb-in Nominal Torque</td>
			<td>Ruland</td>
			<td>PSR16-5-4-A</td>
			<td></td>
		</tr>
		<tr>
			<td>Polyethylene glycol monomethyl ether</td>
			<td>Sigma Aldrich</td>
			<td>202495</td>
			<td></td>
		</tr>
		<tr>
			<td>Methanesulfonyl chloride</td>
			<td>Sigma Aldrich</td>
			<td>471259</td>
			<td></td>
		</tr>
		<tr>
			<td>Toluene</td>
			<td>Sigma Aldrich</td>
			<td>179418</td>
			<td></td>
		</tr>
		<tr>
			<td>Toluene, Anhydrous</td>
			<td>Sigma Aldrich</td>
			<td>244511</td>
			<td></td>
		</tr>
		<tr>
			<td>Triethylamine</td>
			<td>Sigma Aldrich</td>
			<td>T0886</td>
			<td></td>
		</tr>
		<tr>
			<td>Celite 545 (Diatomaceous Earth)</td>
			<td>Sigma Aldrich</td>
			<td>419931</td>
			<td></td>
		</tr>
		<tr>
			<td>Dichloromethane</td>
			<td>Sigma Aldrich</td>
			<td>320269</td>
			<td></td>
		</tr>
		<tr>
			<td>Diethyl ether</td>
			<td>Sigma Aldrich</td>
			<td>296082</td>
			<td></td>
		</tr>
		<tr>
			<td>N,N-Dimethylformamide, anhydrous</td>
			<td>Sigma Aldrich</td>
			<td>227056</td>
			<td></td>
		</tr>
		<tr>
			<td>Potassium carbonate</td>
			<td>Sigma Aldrich</td>
			<td>791776</td>
			<td></td>
		</tr>
		<tr>
			<td>Thioacetic acid</td>
			<td>Sigma Aldrich</td>
			<td>T30805</td>
			<td></td>
		</tr>
		<tr>
			<td>Tetrahydrofuran</td>
			<td>Sigma Aldrich</td>
			<td>360589</td>
			<td></td>
		</tr>
		<tr>
			<td>Aluminum oxide, neutral, activated, Brockmann I</td>
			<td>Sigma Aldrich</td>
			<td>199974</td>
			<td></td>
		</tr>
		<tr>
			<td>Sodium methoxide solution, 0.5 M in methanol</td>
			<td>Sigma Aldrich</td>
			<td>403067</td>
			<td></td>
		</tr>
		<tr>
			<td>Propylene sulfide</td>
			<td>Sigma Aldrich</td>
			<td>P53209</td>
			<td></td>
		</tr>
		<tr>
			<td>Acetic acid</td>
			<td>Sigma Aldrich</td>
			<td>A6283</td>
			<td></td>
		</tr>
		<tr>
			<td>Methanol</td>
			<td>Sigma Aldrich</td>
			<td>320390</td>
			<td></td>
		</tr>
		<tr>
			<td>Sodium hydroxide solution 1.0 N</td>
			<td>Sigma Aldrich</td>
			<td>S2770</td>
			<td></td>
		</tr>
		<tr>
			<td>Endotoxin-free water</td>
			<td>GE Healthcare Life Sciences</td>
			<td>SH30529.01</td>
			<td></td>
		</tr>
		<tr>
			<td>Paper pH strips</td>
			<td>Fisher Scientific</td>
			<td>13-640-508</td>
			<td></td>
		</tr>
		<tr>
			<td>Endotoxin-free Dulbecco&#39;s PBS</td>
			<td>Sigma Aldrich</td>
			<td>TMS-012</td>
			<td></td>
		</tr>
		<tr>
			<td>Borosilicate glass scintillation vials</td>
			<td>Fisher Scientific</td>
			<td>03-337-4</td>
			<td></td>
		</tr>
		<tr>
			<td>1 mL all-plastic syringe</td>
			<td>Thermo Scientific</td>
			<td>S75101</td>
			<td></td>
		</tr>
		<tr>
			<td>Sepharose CL-6B</td>
			<td>Sigma Aldrich</td>
			<td>CL6B200</td>
			<td></td>
		</tr>
		<tr>
			<td>Liquid chromatography column</td>
			<td>Sigma Aldrich</td>
			<td>C4169</td>
			<td></td>
		</tr>
		<tr>
			<td>CIJ mixer, HDPE</td>
			<td>Custom</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Triton X-100</td>
			<td>Sigma Aldrich</td>
			<td>X100</td>
			<td></td>
		</tr>
		<tr>
			<td>Hydrogen peroxide solution</td>
			<td>Sigma Aldrich</td>
			<td>216763</td>
			<td></td>
		</tr>
		<tr>
			<td>HEK-Blue hTLR4</td>
			<td>InvivoGen</td>
			<td>hkb-htlr4</td>
			<td></td>
		</tr>
		<tr>
			<td>RAW-Blue Cells</td>
			<td>InvivoGen</td>
			<td>raw-sp</td>
			<td></td>
		</tr>
		<tr>
			<td>QUANTI-Blue</td>
			<td>InvivoGen</td>
			<td>rep-qb1</td>
			<td></td>
		</tr>
		<tr>
			<td>PYROGENT Gel Clot LAL Assays</td>
			<td>Lonza</td>
			<td>N183-125</td>
			<td></td>
		</tr>
	</tbody>
</table>

rapid, scalable assembly and loading of bioactive proteins and immunostimulants into diverse synthetic nanocarriers via flash nanoprecipitation

Nanomaterialer præsentere en bred vifte af muligheder for at tilpasse kontrolleret levering af enkelt og kombinerede molekylære nyttelast for terapeutiske og tænkelig andragender. Denne øget specificitet kan have stor klinisk betydning, herunder nedsat bivirkninger og lavere doser med højere potens. Derudover kan i situ målretning og kontrolleret graduering af specifikke celle subsets styrke in vitro og i vivo undersøgelser af grundlæggende biologiske fænomener og sonde cellefunktion. Desværre, den nødvendige ekspertise i nanoskala naturvidenskab, kemi og teknik ofte forbyde laboratorier uden erfaring i disse felter fra opdigte og tilpasning af nanomaterialer som værktøjer til deres undersøgelser eller køretøjer til deres terapeutiske strategier. Her give vi protokoller til syntese og skalerbar forsamling af en alsidig giftfri blok copolymer system imødekommenhed over for facile dannelsen og lastning af nanoskala køretøjer for biomedicinske programmer. Flash nanoprecipitation er præsenteret som en metode til hurtig fremstilling af forskellige nanocarriers fra poly(ethylene glycol) -bl-poly (propylen sulfid) copolymere. Disse protokoller vil tillade laboratorier med en bred vifte af ekspertise og ressourcer til let og reproducerbar Fremstil avanceret nanocarrier leveringssystemer til deres programmer. Design og konstruktion af et automatiseret instrument, der beskæftiger en højhastigheds sprøjten pumpe til at lette den flash nanoprecipitation behandle og for at give øget kontrol over homogenitet, størrelse, morfologi og belastning af polymersome nanocarriers er beskrevet.

Her har vi præsenteret en enkel protokol for formuleringen af nanocarriers i stand til lastning hydrofile og hydrofobe fragt, der er sikre for i vivo mus og primat administration11,13. Vi har også inkluderet en detaljeret protokol for syntesen af polymeren bruges i vores repræsentative resultater, samt en beskrivelse af fabrikation af en brugerdefineret instrument for den mekanisk styrede impingement løsninger i CIJ m...

Watch this Scientific Journal Video about Rapid, Scalable Assembly and Loading of Bioactive Proteins and Immunostimulants into Diverse Synthetic Nanocarriers Via Flash Nanoprecipitation at JoVE.com

Rapid, Scalable Assembly and Loading of Bioactive Proteins and Immunostimulants into Diverse Synthetic Nanocarriers Via Flash Nanoprecipitation

Nanomaterialer giver alsidig ordninger for kontrolleret terapeutisk levering til både grundforskning og translationel applikationer, men deres fabrikation ofte kræver ekspertise, som ikke er tilgængelig i de fleste biomedicinske laboratorier. Vi præsenterer her, protokoller for skalerbar fabrikation og terapeutiske belastning af forskelligartede selvsamlede nanocarriers ved hjælp af flash nanoprecipitation.

Hurtig og skalerbar forsamling og læsning af bioaktive proteiner og immunostimulanter i forskellige syntetiske Nanocarriers Via Flash Nanoprecipitation

Nanomaterials present a wide range of options to customize the controlled delivery of single and combined molecular payloads for therapeutic and imaging ...

Research

JoVE Journal

Bioengineering

Solid-phase Submonomer Synthesis of Peptoid Polymers and their Self-Assembly into Highly-Ordered Nanosheets

Fast-fase Submonomer Syntese af Peptoid polymerer og deres saml-selv i Meget-Bestilt Nanosheets

Peptoids are a novel class of biomimetic, non-natural, sequence-specific heteropolymers that resist proteolysis, exhibit potent biological activity, and ...

Formulation of Diblock Polymeric Nanoparticles through Nanoprecipitation Technique

Nanotechnology is a relatively new branch of science that involves harnessing the unique properties of particles that are nanometers in scale ...

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold

Fremstilling af et bioaktivt, PCL-baserede &quot;Self-montering&quot; formhukommelse polymerskelet

Tissue engineering has been explored as an alternative strategy for the treatment of critical-sized cranio-maxillofacial (CMF) bone defects. Essential to ...

Fabrication of Mechanically Tunable and Bioactive Metal Scaffolds for Biomedical Applications

Fabrikation af mekanisk Tunable og bioaktive Metal Stilladser til biomedicinske anvendelser

Biometal systems have been widely used for biomedical applications, in particular, as load-bearing materials. However, major challenges are high stiffness ...

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities

A Novel bioreaktor for High Density Dyrkning af Diverse mikrobielle samfund

A novel reactor design, coined a high density bioreactor (HDBR), is presented for the cultivation and study of high density microbial communities. Past ...

Micropatterning and Assembly of 3D Microvessels

Micropatterning og Samling af 3D mikrokar

In vitro platforms to study endothelial cells and vascular biology are largely limited to 2D endothelial cell culture, flow chambers with polymer or glass ...

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning

Opdigte nedbrydelige Thermoresponsive Hydrogels på flere længdeskalaer via reaktive ekstrudering, mikrofluidik, samlesæt, og Electrospinning

While various smart materials have been explored for a variety of biomedical applications (e.g., drug delivery, tissue engineering, bioimaging, etc.), ...

A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles

En simpel og skalerbar Fabrication Metode til Økologisk Elektroniske enheder om tekstiler

Today, wearable electronics devices combine a large variety of functional, stretchable, and flexible technologies. However, in many cases, these devices ...

Predicting Gene Silencing Through the Spatiotemporal Control of siRNA Release from Photo-responsive Polymeric Nanocarriers

Forudsigelse af gensvulmning gennem spatiotemporal kontrol af siRNA-frigivelse fra fotoresvarende polymere nanocarriers

New materials and methods are needed to better control the binding vs. release of nucleic acids for a wide range of applications that require the precise ...

Patterning Bioactive Proteins or Peptides on Hydrogel Using Photochemistry for Biological Applications

Mønster bioaktive proteiner eller peptider på Hydrogel ved hjælp af fotokemi for biologiske applikationer

There are many biological stimuli that can influence cell behavior and stem cell differentiation. General cell culture approaches rely on soluble factors ...