Simple and rapid synthesis of ultrathin gold nanowires, their self-assembly and application in surface-enhanced Raman scattering.

نویسندگان

  • Huajun Feng
  • Yanmei Yang
  • Yumeng You
  • Gongping Li
  • Jun Guo
  • Ting Yu
  • Zexiang Shen
  • Tom Wu
  • Bengang Xing
چکیده

A simple and one-step method to rapidly synthesize single crystalline ultrathin gold nanowires at room temperature within a few hours has been developed, and the self-assembled ultrathin gold nanowires demonstrated an intriguing application in surface-enhanced Raman scattering (SERS).

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

Surface Enhanced Raman Scattering of Crystal Violet with Low Concentrations Using Self-Assembled Silver and Gold-Silver Core-Shell Nanoparticles

The active substrates in surface enhanced Raman scattering (SERS) spectroscopy were prepared through self-assembly of nanoparticles on functionalized glasses. Colloidal silver nanoparticles (Ag NPs) were prepared chemically in two different sizes by reduction of AgNO3 using trisodium citrate and sodium borohydride. Gold–silver core–shell nanoparticles were also prepared to compare between the o...

متن کامل

Simple and rapid synthesis of ultrathin gold nanowires, their self-assembly and application in surface-enhanced Raman scatteringw

One-dimensional gold nanowires (AuNWs) have attracted considerable interests because of their high aspect ratios, unusual physical properties and potential applications in nanoelectronics, photonics and sensors. The large anisotropy of AuNWs and their subsequent assembly ability make them especially important building blocks for the linkage of nanoscale electronics and molecular devices. Many s...

متن کامل

Gold-silver bimetallic porous nanowires for surface-enhanced Raman scattering.

Highly porous bimetallic nanowires manufactured via a simple galvanic reaction have demonstrated superior activity in surface-enhanced Raman scattering, allowing ultrasensitive chemical detections on isolated porous nanowires in comparison to pristine silver nanowires.

متن کامل

Facile Synthesis and One-Dimensional Assembly of Cyclodextrin-Capped Gold Nanoparticles and Their Applications in Catalysis and Surface-Enhanced Raman Scattering

Controlled synthesis of Au nanoparticles with adjustable sizes (10-50 nm) and narrow size distributions (<10% in standard deviation) was realized by reducing hydrochloroauric acid with R-cyclodextrin (R-CD) in an alkaline aqueous solution, which was very simple and “green”. It was revealed that a proper pH was essential to the formation of stable dispersions of nonaggregated Au nanoparticles an...

متن کامل

Self-assembly of gold nanoparticles to silver microspheres as highly efficient 3D SERS substrates

Herein we report a simple, one-pot, surfactant-free synthesis of 3D Ag microspheres (AgMSs) in aqueous phase at room temperature. The 3D AgMSs act as supports to fix the gold nanoparticles (GNPs) in 3D space via the interaction between the carboxyl groups of GNPs and the Ag atoms of AgMSs. The ensemble of AgMSs@GNPs with high surface-enhanced Raman scattering (SERS) activity and sensitivity can...

متن کامل

ذخیره در منابع من

ذخیره در منابع من قبلا به منابع من ذحیره شده

{@ msg_add @}


  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 15  شماره 

صفحات  -

تاریخ انتشار 2009