Nanochemistry

News and Updates

Researchers Explore Energy-saving Catalysts that Operate at Room Temperature

April 15, 2019

NIST researchers have explored in unprecedented detail a new breed of catalysts that allow some chemical reactions

An electron micrograph showing a globular cluster of silver nanoparticles atop the surface of a cutting board from which it was scratched off.

Do Kitchen Items Shed Antimicrobial Nanoparticles After Use?

November 8, 2018

Because of their antimicrobial and antifungal properties, silver nanoparticles measuring between one and 100 nanometers

Atomic-Scale Movies Reveal That Catalyst Nanoparticles Undergo Internal Changes to Forge Carbon Nanotubes

September 20, 2017

Lights, camera, catalysis! Researchers at the National Institute of Standards and Technology (NIST) have made some of

Even Better than DNA Origami

September 1, 2017

DNA is the stuff of life, but it is also the stuff of nanotechnology. Because molecules of DNA with complementary

Projects and Programs

PTIR combines the spatial resolution of AFM with the specificity of absorption spectroscopy

Nano-Chemical Imaging and -Spectroscopy (IR, nIR, VIS)

Conventional techniques for analyzing chemical composition, such as infrared (IR) microscopy often miss critically important nanoscale details. To overcome this

Schematic showing DNA origami in a laser beam

DNA Origami for Precise Manufacturing of Nanoscale Structures

Over the past decade nanoscale science has produced varied and fascinating nanostructures with an extraordinary range of interesting and useful properties. In

Fundamental Interaction Mechanisms of Engineered Nanomaterials with DNA

We utilized isotope-dilution liquid chromatography/mass spectrometry (LC/MS) to determine the levels of the oxidatively damaged DNA bases, 8

Tracking Nanoparticles as Optical Indicators of Device Dynamics

Nanofabricated and microfabricated devices, ranging from nanomotors propelled by ultrasound to microelectromechanical systems (MEMS), can move in fascinating

Publications

Topology, Landscapes, and Biomolecular Energy Transport

October 11, 2019

Author(s)

Justin E. Elenewski, Kirill Velizhanin, Michael P. Zwolak

While ubiquitous, energy redistribution remains a poorly understood facet of the nonequilibrium thermodynamics of biomolecules. At the molecular level, finite

Parallel multi-parameter study of PEI-functionalized gold nanoparticle synthesis for bio-medical applications: Part 1. A critical assessment of methodology, properties and stability

August 20, 2019

Author(s)

Tae Joon Cho, Justin M. Gorham, John M. Pettibone, Jingyu Liu, Jiaojie Tan, Vincent A. Hackley

Cationic polyethyleneimine (PEI) conjugated gold nanoparticles (AuNPs) that are chemically and physically stable under physiological conditions are an ideal

Direct-write Lithiation of Silicon Using a Focused Ion Beam of Li+

July 8, 2019

Author(s)

William R. McGehee, Evgheni Strelcov, Vladimir P. Oleshko, Christopher L. Soles, Nikolai B. Zhitenev, Jabez J. McClelland

Electrochemical processes that govern the performance of lithium ion batteries involve numerous parallel reactions and interfacial phenomena that complicate the

Discriminated properties of PEI functionalized gold nanoparticles (Au-PEIs) predetermined by synthetic routes of ligand exchange and reduction processes: Paths and Fates

June 17, 2019

Author(s)

Tae Joon Cho, John M. Pettibone, Vincent A. Hackley

Polyethyleneimine (PEI) functionalized AuNPs (Au-PEIs) are have potent as positively charged gold nanoparticles (AuNPs) for nano-medicinal applications, due to

Tools and Instruments

X-ray Photoelectron Spectroscopy

The Material Measurement Science Division at NIST performs surface chemical analysis using X-ray Photoelectron