Photoreductive synthesis of water-soluble fluorescent metal nanoclusters.

نویسندگان

  • Hui Zhang
  • Xin Huang
  • Luo Li
  • Gaowen Zhang
  • Irshad Hussain
  • Zhen Li
  • Bien Tan
چکیده

Water-soluble fluorescent copper, silver and gold nanoclusters with quantum yields of 2.2, 6.8 and 5.3%, respectively, are prepared by a robust photoreduction of their inorganic precursors in the presence of poly (methacrylic acid) functionalized with pentaerythritol tetrakis 3-mercaptopropionate.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Green Synthesis of Fluorescent Palladium Nanoclusters

Metal nanoclusters, with dimensions between atomic and nanoparticles, have attracted a great deal of attention due to their significantly unusual properties. Water-soluble palladium nanoclusters (Pd NCs) with blue-green fluorescence were synthesized by a water bath heating method, with methionine as a stabilizer and ascorbic acid as a reducing agent. We investigated the optimal synthesis condit...

متن کامل

Facile preparation of water-soluble fluorescent silver nanoclusters using a polyelectrolyte template.

We report a new approach for the synthesis of fluorescent and water-soluble Ag nanoclusters, using the common polyelectrolyte poly(methacrylic acid) as the template.

متن کامل

Water-soluble fluorescent silver nanoclusters.

Ag nanoclusters consist of several to roughly a hundred atoms and possess sizes comparable to the Fermi wavelength of electrons; they exhibit molecule-like properties, including discrete electronic transitions and strong fluorescence. These nanoclusters are of significant interest because they provide the bridge between atomic and nanoparticle behavior in noble metals. Since the first observati...

متن کامل

Synthesis and Applications of Water-Soluble Fluorescent Silver Nanoclusters

Ag nanoclusters consisting of several AQ:1 to a hundred atoms with diameters less than 2 nm show molecule-like properties, including discrete electronic AQ:2 transitions and strong fluorescence. They have received considerable research interest due to their unique optical, electrical and chemical properties and potential applications in chemicaland biosensing. Ag nanoclusters exhibit excellent ...

متن کامل

Synthesis of highly stable fluorescent Ag nanocluster @ polymer nanoparticles in aqueous solution.

Water-soluble, highly stable fluorescent Ag nanoclusters have been synthesized using a novel core/shell solid polymer (PMMA/PMMA-PMAA) nanoparticles as a novel template. The photoluminescence, ultraviolet-visible absorption, X-ray photoelectron (XPS), laser desorption time of flight mass spectroscopies (LDI-ToF-MS) and transmission electron microscopy (TEM) were carried out to characterize the ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Chemical communications

دوره 48 4  شماره 

صفحات  -

تاریخ انتشار 2012