Nanopartz Gold Nanowires
Nanopartz™ has developed the industry standard in Gold Nanowires. These nanowires are 75 to 100nm in diameter, and range from 1 µm to 10 microns in length. In the bare form, these nanowires are immersed in DI water with excess CTAB capping agent to minimize aggregation. As with all of Nanopartz products, they are highly monodisperse.
|Part #||Diameter (nm)||Length (nm)||Aspect Ratio||OD SPR (AU)||Peak LSPR Wave (nm)||Nanowire Vol (nm3)||Nanorods /mL||Wt. conc (ug/ml)||Wt. %||PPM||Molarity (pM)|
|In batch size variation||
< 10% CV
|Surface charge (zeta)||
Hexadecyltrimethylammonium bromide (CTAB) (C16H33)N(CH3)3Br, cetyltrimethylammonium bromide. As any surfactant, it forms micelles in aqueous solutions. At 303 K (30 °C) it forms micelles with aggregation number 75-120 (depending on method of determination, usually average ~95) and degree of ionization α (fractional charge) 0.2–0.1 (from low to high concentration). The standard constant of Br- counterion binding to the micelle at 303 K (30 °C) is K° ≈ 400.
These Gold Nanowires are shipped in DI water with excess CTAB capping agent to reduce knotting.
Sizes 75nm x 1 micron through 10 microns. Other sizes are special order. Please contact us.
This product is sold in volumes from 5mL and 2000mL, 0.05mg/mL.
Standard sizes are in stock. Special order sizes are shipped in two weeks or less. All domestic shipments are sent Fed Ex Standard Overnight delivery, international Fed Ex Priority 2 day. No shipments on Fridays except for dried particles. Saturday shipping available for extra charge.
Shelf Life/Storage Temperature
This product is guaranteed for one year and should be stored at room temperature. Care must be taken to only use sterile glassware when working with this product.
This product is known to be cytotoxic. This product has been sterilized and is biological free.
This product is manufactured using our audited ISO 9000 quality control system. Every order comes with a Certificate of Analysis. We use NIST traceable:
UV-VIS (Agilent 8453) for extinction and concentration measurements
NIR (Cary 500) for NIR extinction and concentration measurements
DLS (Malvern Nano ZS) for zeta potential measurement
ICP-MS (Varian 820-MS) for gold mass measurements
TEM (Phillips CM-100 100KV) for sizing
The manufacturing method for these microparticles are based on our proprietary methods. This invention allows for the manufacturing of highly monodisperse gold microparticles.Gold Nanowires are highly advantageous in nanoelectronics, transparent electrodes, and as nanosensors.
All of these "bare" particles are capped with ligands that are easily replaced with thiol and charge chemistries.
- Highly stable, minimal to no aggregation
- Available in aspect ratios up to 100
- Long shelf life times
- High conductivity, readily transparent
- Easily conjugated
- High corrosion resistance
- Long wire lengths for nanoelectronics, nanoantennas
- Applications in tribological additives
- Light conduction for digital computers
- Thermally conductive
- Electronically conductive
- Photonically conductive
I want to use these nanowires in my sensor application - how do I go about doing that?
You are going to want to conjugate this nanowires to a ligand. We highly recommend our conjugating services for this.
What is the SPR for this product?
There is no Surface Plasmon Resonance for this particle as the diameter and length are too large, so these are not recommended for dark field microscopy. However, they are large enough to reflect light and are very advantageous for bright field microscopy.
I want to use this product in polymers for transparent electrodes. Can I use them as is?
"We explored several nanoparticle manufacturers because we were unable to reproduce literature results for our application. One manufacturer recommended Nanopartz because of our desire for a narrow distribution of particle sizes. Nanopartz technical support helped us work through our application problems and suggested custom polymers that readily worked where others had failed. This really impressed us. They always provide quick delivery and helpful advice. We would highly recommend Nanopartz."
Tony Mega, Revalesio Corporation
or more. Commercially available chemically grown NWs from Nanopartz have ARs from 150
to 200. ... Controllable Growth of Gold Nanowires for Photonics Applications Ganta et al. ...
(Nanopartz). ... to the PMMA layer, and the silicon detached from the gold nanowires/PMMA film
by ... The gold nanowire/PMMA film was then transferred to a glass coverslip containing ...
Spatially localized enhancement of evanescent coupling to whispering-gallery modes at 1550 nm due to surface plasmon resonances of Au nanowires
(a) Simple schematic of the setup in which diode-laser light is evanes- cently coupled from a
tapered fiber to the WGMs of a microsphere on which Au nanowires have been ...
a fundamental understanding of the optical response of Au nanowires for future ... polarization- and
wavelength- sensitive DIC images and intensities of 2 μm-long gold nano- wires. ...
to a ... Chiu, HM Chen, RS Liu, and DP Tsai, “Plasmonic optical properties of a single gold
nano-rod ... XAJ Wang and Q. Li, “Size-dependent electronic structures of ZnO nanowires,” Appl. ...
also used the isolated gold nanowires in the SERS experiments. They are chemically
grown commercial nanowires purchased from Nanopartz. ...
Modeling the Behavior of Gold Nanoparticles and Semiconductor Nanowires for Utilization in Nanodevice Applications
SEMICONDUCTOR ... Polarization index for various round nanowires………….55 45.
Local electric field of a round InP nanowire under 800nm excitation ...
Nanopartz (Bare Gold Nanorodz, item nrs. ... the nanorods are still of the same order, which agrees
with the findings of Wu et al, who found that the Youngʼs modulus of gold nanowires of 40 ...