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
聯系方式
  • 通信地址:江蘇省常州市科教城實驗測試樓B403
  • 郵編:213164
  • 電話:0519-86330668
  • 傳真:0519-86330668
  • Email:luokun@cczu.edu.cn
當前位置:> 首頁 > 論文著作 > 正文
Multiple-Sized Amphiphilic Janus Gold Nanoparticles by Ligand Exchange at Toluene/Water Interface
作者:Kun Luo *, Yongdong Xiang, Haiming Wang, Li Xiang, Zhihong Luo
關鍵字:Janus gold nanoparticles, amphiphilic, ligand exchange, self-assembly
論文來源:期刊
具體來源:Journal of Materials Science & Technology
發表時間:2016年

Amphiphilic Janus gold nanoparticles (GNPs) are prospected to encapsulate drug molecules in cancer therapy and to serve as heterogeneous catalysts at oil/water interfaces, where Janus GNPs with different sizes are required. In this work, multiple-sized precursor GNPs were synthesized by seeded growth method protected with tris(hydroxymethyl)phosphine oxide (THPO) ligand molecule, and a ligand exchange reaction with triphenylphosphine (PPh3) at the toluene/water interface was employed to prepare amphiphilic Janus GNPs. UV-vis and transmission electron microscopy (TEM) analyses indicate that the as-prepared GNPs are nanocrystals with average diameters of 2.3 nm, 9.5 nm, 16.1 nm and 18.8 nm, respectively. Contact angle, Raman and X-ray photonic spectroscopy (XPS) analyses reveal that the selfassembled GNP films exhibit hydrophilic on one side and hydrophobic on another, owing to the adsorption of hydrophilic ligands (THPO and THP) and a similar amount of hydrophobic ligands (PPh3 and PPh3O). Angle-resolved XPS analysis further demonstrates that the individual GNPs actually possess hydrophilic and hydrophobic compartments on the surface, which regularly packed by supramolecular interactions

at toluene/water interface to form the self-assembled GNP films.


主站蜘蛛池模板: 集贤县| 鲜城| 东阳市| 长沙市| 汶川县| 石阡县| 长顺县| 苗栗市| 海兴县| 方城县| 桐梓县| 怀宁县| 焦作市| 雷波县| 来宾市| 湖北省| 南漳县| 桂林市| 城步| 乌拉特前旗| 陕西省| 错那县| 县级市| 乌鲁木齐市| 新绛县| 保定市| 叙永县| 福鼎市| 贵定县| 吉木乃县| 随州市| 慈溪市| 奈曼旗| 武川县| 宁津县| 巨野县| 肥城市| 日照市| 沂水县| 乌苏市| 大同市|