私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

相關鏈接
聯(lián)系方式
  • 通信地址:廣西桂林市桂林理工大學材料科學與工程學院
  • 郵編:541004
  • 電話:0773-5896438
  • 傳真:
  • Email:gfzzhouli@gmail.com
當前位置:> 首頁 > 論文著作 > 正文
A water-soluble conjugated polymer brush with multihydroxy dendritic side chains
作者:Li Zhou, Junlong Geng, Guan Wang, Jie Liu, Bin Liu
關鍵字:conjugated polymer,hyperbranched polyglycerol ,brush ,multihydroxy dendritic side chains
論文來源:期刊
具體來源:Polym. Chem. 2013, 4, 5243-5251
發(fā)表時間:2013年
A brush-like water-soluble conjugated polymer bearing a poly[9,9''-dihexylfluorene-co-alt-4,7-(2,1,3-benzothiadiazole)] (PFBT) backbone and multihydroxy hyperbranched polyglycerol (HPG) side chains is facilely synthesized by combination of "grafting from" strategy and the ring-opening polymerization (ROP) technique. The PFBT-g-HPG brush shows bright fluorescence in water with an emission maximum at 587 nm and a quantum yield of 15%. Laser light scattering (LLS), transmission electron microscopy (TEM) and atomic force microscopy (AFM) analyses reveal that PFBT-g-HPG adopts a spherical shape in water and a wormlike conformation in N,N-dimethylformamide (DMF). PFBT-g-HPG shows stable fluorescence against the variation of pH and ionic strength as well as interference of biomolecules. MCF-7 cancer cell imaging results show that the PFBT-g-HPG exhibits low cytotoxicity and high photostability, which allows fluorescence imaging in a high contrast manner. On the basis of the numerous hydroxyl groups of the grafted HPG, post-functionalization of PFBT-g-HPG could afford various PFBT-g-HPG-based brushes with adjustable surface functionality (e.g., carboxylic groups) and solubility. This study thus provides a versatile brush approach to water-soluble conjugated polymers for advanced sensing and imaging applications.
主站蜘蛛池模板: 喀什市| 顺义区| 陕西省| 英德市| 拉萨市| 舒城县| 化德县| 越西县| 武乡县| 绍兴市| 宁远县| 鄂伦春自治旗| 读书| 阳春市| 台州市| 屯昌县| 旬阳县| 嘉峪关市| 阿荣旗| 平度市| 正安县| 施甸县| 泽普县| 云安县| 渭南市| 西安市| 正安县| 金门县| 霍林郭勒市| 长垣县| 长顺县| 湄潭县| 靖江市| 安福县| 阿巴嘎旗| 保德县| 区。| 邻水| 新乡县| 苏尼特右旗| 潼关县|