Name: preparation, purification, and characterization of lanthanide complexes for use as contrast agents for magnetic resonance imaging
Uploaded: 2011-07-21T13:00:00
Description: Watch this Scientific Journal Video about Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging at JoVE.com

Biz minnetle Wayne State Üniversitesi (MJA), Amerikan Yaşlanma Araştırma (SMV) Vakfı hibe ve Kariyer Bağımsızlık Geçiş Biyomedikal Görüntüleme National Institute Ödülü (R00EB007129) ve Ulusal Sağlık Enstitüleri Biyomühendislik Pathway başlangıç ​​fonları kabul Sağlık (MJA).

1. LnCl 3 tuzları kullanarak Metalation <ol><li> 30-265 mM bir çözüm üretmek için ligand su içinde eritin. Bu video 73 mM konsantrasyonda ligand 2 - (4-isothiocyanatobenzyl) diethylenetriamine pentaacetic asit (DTPA-p-SCN-Bn) kullanılmıştır. </li><li> 1 M NH 4 OH ekleyerek ligand çözüm pH 5.5 ve 7.0 arasında ayarlayın. Bu video, 0.2 mL 1 M NH 4 OH çözüm kullanılmıştır. </li><li> 5-1000 mM bir konsantrasyon ile bir çözüm üretmek için su LnCl 3</...

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Lantanide bazlı kontrast ajanlar 4-14 yayınların sayısının artması göz önüne alındığında, bakım, hazırlama, arındırıcı ve tekrarlanabilir ve karşılaştırılabilir sonuçlar sağlamak için ürün karakterize alınması çok önemlidir . Bu kompleksler, genellikle arındırmak ve paramanyetik doğa ve bioconjugation için kullanılan olabilir herhangi bir fonksiyonel grupların duyarlılığı nedeniyle organik moleküllerin göreceli karakterize zorlu kabul edilir. Biz lantanide komplek...

<table border="1"><tbody><tr><th> Reaktifler ve Ekipmanları </th><th> Şirket </th><th> Katalog numarası </th></tr><tr><td> EuCl 3 • 6H 2 O </td><td> Sigma-Aldrich </td><td> 203.254-5G </td></tr><tr><td> p-SCN-Bn-DTPA </td><td> Macrocyclics </td><td> B-305 </td></tr><tr><td> amonyum hidroksit </td><td> EMD </td><td> AX1303-3 </td></tr><tr><td> Spectra / Por Biotech Selüloz Ester (CE) Diyaliz Membran - 500 D MWCO </td><td> Fisher Scientific </td><td> 68-671-24 </td></tr><tr><td> Millipore IC Millex-LG Filtre Üniteleri </td><td> Fisher Scientific </td><td> SLLG C13 NL </td></tr><tr><td> xylenol turuncu tetrasodyum tuz </td><td> Alfa Aesar </td><td> 41379 </td></tr><tr><td> asetik asit </td><td> Fluka </td><td> 49199 </td></tr><tr><td> D 2 O </td><td> Cambridge İzotop Laboratories, Inc. </td><td> DLM-4-25 </td></tr><tr><td> su arıtma </td><td> ELGA </td><td> Purelab Ultra </td></tr><tr><td> yüksek performanslı sıvı kromatografisi ve kütle spektrometresi </td><td> Shimadzu </td><td> LCMS-2010EV </td></tr><tr><td> relaksasyon zamanı çözümleyicisi </td><td> Bruker </td><td> mq60 minispec </td></tr><tr><td> UV-vis spektrofotometre </td><td> Fisher Scientific </td><td> 20-624-00092 </td></tr><tr><td> dondurarak kurutma makinası </td><td> Fisher Scientific </td><td> 10-030-133 </td></tr><tr><td> pH metre </td><td> Hanna Instruments </td><td> HI 221 </td></tr><tr><td> spectrofluorometer </td><td> Horiba Jobin Yvon </td><td> Fluoromax-4 </td></tr><tr><td> Molekül Ağırlığı Hesaplama sürümü 6.46 Matthew Monroe, indirilen 17 Ekim 2009 </td><td> <a href="http://ncrr.pnl.gov/software/">http://ncrr.pnl.gov/software/</a> </td><td> Molekül Ağırlığı Hesaplama </td></tr></tbody></table>

preparation, purification, and characterization of lanthanide complexes for use as contrast agents for magnetic resonance imaging

Lantanide iyonları şelat tabanlı Polyaminopolycarboxylate ligandlar yaygın kullanılan ve ortaya çıkan komplekslerinin manyetik rezonans görüntüleme (MRG) kontrast ajanlar olarak yararlıdır. Birçok ticari olarak kullanılabilir ligandlar, fonksiyonel, hızlı, yüksek saflıkta izin grupları ve amin-reaktif aktif esterleri ve izotiyosiyanat grupları veya tiol-reaktif maleimides üzerinden makromoleküllerin ve biyomoleküllerin yüksek getirili konjugasyon içerdiğinden özellikle yararlıdır. Bu ligandların metalation bioconjugation kimya, metalation prosedürleri ince farklar alanında ortak bilgi olarak kabul edilirken, metal başlangıç ​​malzemeleri seçerken dikkate alınmalıdır. Ayrıca, saflaştırılması ve karakterizasyonu var ve en etkili yöntemdir seçimi için birden fazla seçenek kısmen başlangıç ​​materyallerinin seçimine bağlıdır. Bu ince farklar yayınlanan protokoller genellikle ihmal edilir. Burada amacımız, metalation, arıtma, ve MRI (Şekil 1) kontrast ajanlar olarak kullanılabilir lantanide komplekslerin karakterizasyonu için ortak yöntemler göstermektir. Bu yayının, biyomedikal bilim adamları, başlangıç ​​maddeleri ve arıtma yöntemleri seçimi kolaylaştırılması lantanide kompleks reaksiyonlar sık ​​kullanılan tepkimelerin kendi repertuarına dahil olacağını bekliyoruz.

Watch this Scientific Journal Video about Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging at JoVE.com

Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging

Biz metalation, arıtma, ve lantanide komplekslerin karakterizasyonu göstermektedir. Burada açıklanan komplekslerinin manyetik rezonans görüntüleme kullanarak bu moleküllerin izlemeyi etkinleştirmek için makromoleküllerin konjuge olabilir.

Manyetik Rezonans Görüntüleme için hazırlanması, Saflaştırılması ve lantanide Kompleksleri Kontrast Ajanlar Kullanım Karakterizasyonu

Polyaminopolycarboxylate-based ligands are commonly used to chelate lanthanide ions, and the resulting complexes are 
useful as contrast agents for ...

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