Polycarbonate microchannel network with carpet of gold nanowires as SERS-active device.

نویسندگان

  • Jean Gamby
  • Aurore Rudolf
  • Mohamed Abid
  • Hubert H Girault
  • Claude Deslouis
  • Bernard Tribollet
چکیده

A polycarbonate (PC) microchannel network supporting gold nanowires was developed to be a SERS-active microchip. Observations of large increases in a Raman cross-section, allowed us to collect vibrational signatures which are not easily detectable by Raman techniques due to the high fluorescence level of bare PC. Compared to other SERS experiments, this study relies on the use of dielectric polymer/metal surfaces which are well defined at microscale and nanoscale levels. This device seems a promising tool for sensing the adsorption of biomolecules.

برای دانلود رایگان 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

Nanowires network for biomolecular detection using contactless impedance tomoscopy technique.

Here we present the detection of ultralow concentrations of biomolecules in a device made from a polycarbonate membrane containing a network of gold nanowires and using a "contactless" impedance tomoscopy technique. The sensor comprises a thin dielectric layer with two parallel band electrodes on the one side and a microchannel containing gold nanowires onto which the adsorption of antibodies o...

متن کامل

Coating of a thin layer of gold nanoparticles on an FTO conductive glass substrate by Electrodeposition method, as the active substrate of SERS, to study the molecular vibrations of the amino acid tyrosine

This article has no abstract.

متن کامل

Kinked gold nanowires and their SPR/SERS properties.

We report a facile chemical synthesis of kinked gold nanowires through anisotropic growth along the (111) direction with a high density of twin-plane defects. The resulting kinked gold nanowires exhibited pronounced near-IR absorption and were demonstrated as good SERS substrates.

متن کامل

Gold catalytic Growth of Germanium Nanowires by chemical vapour deposition method

Germanium nanowires (GeNWs) were synthesized using chemical vapor deposition (CVD) based on vapor–liquid–solid (VLS) mechanism with Au nanoparticles as catalyst and germanium tetrachloride (GeCl4) as a precursor of germanium. Au catalysts were deposited on silicon wafer as a thin film, firstly by sputtering technique and secondly by submerging the silicon substrates in Au colloidal s...

متن کامل

Site-Selective Controlled Dealloying Process of Gold-Silver Nanowire Array: a Simple Approach towards Long-Term Stability and Sensitivity Improvement of SERS Substrate

Limitations of achieving highly sensitive and stable surface-enhanced Raman scattering (SERS) substrate greatly concern the suitable method for fabrication of large-area plasmonic nanostructures. Herein we report a simple approach using template-based synthesis to create a highly ordered two-dimensional array of gold-silver alloy nanowires, followed by the controlled dealloying process. This pa...

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

عنوان ژورنال:
  • Lab on a chip

دوره 9 12  شماره 

صفحات  -

تاریخ انتشار 2009