杏彩体育平台

您当前所在位置:杏彩体育平台 > 宣传资料 > 荧光标记
GNPs–PEG@FITC 的制备及其在荧光成像中的应用
发布时间:2025-07-23     作者:zyl   分享到:
文献资料:Tumor angiogenesis targeting and imaging using gold nanoparticle probe with directly conjugated cyclic NGR†笔者:Minghao Wu‡ ORCID logoa, Yanyan Zhang‡a, Ying Zhanga, Mingjie Wub, Menglin Wua, Hongyi Wua, Lin Caoa, Liang Lia, Xue Li*a and Xuening Zhang*a论文参考文献微信链接://pubs.rsc.org/en/content/articlehtml/2018/ra/c7ra10155d前言:Preparation of FITC coupled GNPs–PEG@cNGR and GNPs–PEG.To prepare FITC coupled GNPs–PEG@cNGR and GNPs–PEG, 1 mg of the GNPs–PEG@cNGR probe, previously synthesized, was dispersed into 1 mL crosslinking reaction solution containing 7.56 mg Na2CO3, 1.06 mg NaHCO3, and 7.36 mg NaCl, sonicated for 2 min, and stored at 4 °C for 10 min. Subsequently, 0.3 mg FITC in 300 μL of DMSO was poured into the above solution under gentle and continuous stirring and incubated in the dark for 8 h at 4 °C. Next, 20 μL NH4Cl solution (5 M) was poured into the above solution under gentle and continuous stirring to terminate the above reaction and then incubated in the dark for 2 h at 4 °C. The final GNPs–PEG@cNGR@FITC was retrieved by ultrafiltration with a Millipore centrifugal filter unit (Amicon Ultra-0.5; MWCO 100[thin space (1/6-em)]000), washed three times, and resuspended in 0.5 mL of PBS (pH 7.4).In addition, FITC-conjugated GNPs–PEG (GNPs–PEG@FITC) was also prepared as a control. Briefly, the preparation was similar to the fabrication of GNPs–PEG@cNGR, but 220 μL SH–cNGR (1 mg mL−1) was replaced by 15 μL 2-aminoethanethiol (20 mM).

GNPs–PEG@FITC

準備FITC解耦的GNP——PEG@cNGR还有GNP-PEG,1毫克GNP-PEGPEG@cNGR将的时候转化成的检测器离心分离到包含有7.56mg Na2CO3、1.06mg NaHCO3和7.36mg NaCl的1mL化学交联反响悬浊液中,高周波处里215分钟的时间,在4°C下保存1015分钟的时间。随着,在清新持续打料下,将0.3mg FITC不能溶解300μL DMSO中倒这些水氢氧化钠稀硫酸中,在4℃下遮光孵育8个钟头。下面来,在清新持续打料下将20μL NH4Cl水氢氧化钠稀硫酸(5M)倒这些水氢氧化钠稀硫酸中以撤消这些作用,然后呢在4°C传到黑暗地里孵育2个钟头。终究的GNPPEG@cNGR@便用Millipore离心法全自动过滤器中器第一单元(Amicon Ultra-0.5;MWCO 100[薄发展空间(1/6-em)]000)采取反渗透装置,回报FITC,干洗俩次,并举新悬停在0.5 mL PBS(pH 7.4)中。与此同时,FITC偶联的GNP-PEG(GNP-PEG)PEG@FITC)也提供做为对应。简如何理解之,制法时候内似于GNP的开发——PEG@cNGR,但220μL SH-cNGR(1 mg mL-1)被15μL 2-氨基乙硫醇(20 mM)所被淘汰。有关个性化推荐:Biotin-PEG-PFPDiethoxylsilane-PEG-BiotinMonoethoxylsilane-PEG-BiotinBiotin-PEG-TretinoinNTA-PEG-BiotinBiotin-PEG-SSBiotin-PEG-SGBiotin-PEG-HZBiotin-PEG-SVABiotin-PEG-ACBiotin-PEG-CHODBCO-PEG-BiotinBiotin-PEG-FA上面的稿件游戏内容种类分类期刊杂志或资料,要是有商标侵权请找话题公司移除!