U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 1 - 25 of 1922

Survey of agricultural plastic waste in the American Midwest: usage and disposal

January 1, 2026
Author(s)
Julie Rieland, Christina Gore, Kalman Migler, Kathryn Beers
An estimated 4 % of global plastics are used for agricultural applications in forms such as films, jugs, fence posts, and hoses. However, there is limited data on actual use, and more importantly on its fate at end of life. We first present a comprehensive

Charge-state dependent ion condensation near conjugated polymer backbones

November 15, 2025
Author(s)
Dilara Meli, Quentin Thomas, Guillaume Freychet, Lucas Flagg, Iain McCulloch, David Beljonne, Lee Richter, Jonathan Rivnay
Despite the technological appeal of organic mixed ionic/electronic conductors (OMIECs) for a range of applications, a deep understanding of the fundamentals of mixed charge transport in these materials, especially regarding the ionic component, is lacking

The structure and morphology of single-component oligomeric RNA delivery vectors derived from amphiphilic Charge-Altering Releasable Transporters

November 6, 2025
Author(s)
Paul Hurst, Yuan Jia, Summer Ramsay-Burrough, Rebecca McClellan, Joshua Arens, Samuel Khasnavis, Trevor del Castillo, Mahmoud AbdElwakil, Michael Lueckheide, Vivek Prabhu, Robert Waymouth
Recent advances in nucleic acid delivery have been inspired by efforts to mimic the function of natural viruses through the development of self-assemblies capable of transporting oligonucleotides across the cell and endosomal membranes. Lipid nanoparticles

PMSE Centennial: Celebration of Success and New Frontiers in Polymer Materials Science and Engineering

September 18, 2025
Author(s)
Mellissa Grunlan, LaShanda Korely, Qinghuang Lin, Christopher Soles, Rigorberto Advincula, Arthi Jayaraman, Elizabeth Cosgriff-Hernandez, Elsa Reichmanis, Jodie Lutkenhaus, Rodney Priestly, Bridgitte Voit, Thomas Epps
In 2024, the American Chemical Society (ACS) Division of Polymeric Materials: Science and Engineering (PMSE) marked celebrated its centennial. This historic occasion was marked at the 2024 Spring ACS Meeting in New Orleans with a Centennial Symposium

Evaluating Contaminant Effects and Blend Ratios on the Alkaline Hydrolysis of PET Textile Streams

September 5, 2025
Author(s)
McKenzie Coughlin, Thomas Forbes, Zois Tsinas, Amanda Forster, Charlotte Wentz, Maxwell Mevorah, allison carranza, Amy Engelbrecht-Wiggans
The increasing amounts of discarded textiles represent a potentially valuable resource that could be reclaimed, for example, by chemical techniques. This work underscores the significance of advancing chemical recycling techniques for multi-component

Material Needs and Measurement Challenges for Advanced Semiconductor Packaging: Understanding the Soft Side of Science

August 27, 2025
Author(s)
Ran Tao, Polette Centellas, Stian Romberg, Anthony Kotula, Gale Holmes, Amanda Forster, Christopher Soles, Bob Allen, Edvin Cetegen, William Chen, Jeff Gotro, Mark Poliks
This perspective builds upon insights from the National Institute of Standards and Technology (NIST)-organized workshop, "Materials and Metrology Needs for Advanced Semiconductor Packaging Strategies," held at the 35th annual Electronics Packaging

Effect of Ionic Liquids on the Structure of Ionomer Inks

July 28, 2025
Author(s)
Tyler Martin, Kimber Stamm Masias
This study investigates the impact of ionic liquids (ILs) on the structure and performance of catalyst inks used in proton exchange membrane fuel cells (PEMFCs). Using contrast variation small-angle neutron scattering (CV-SANS), we elucidate the structural

Advanced Metrology Suite for Linking Residual Stress to Fundamental Properties of Thermoset Packaging Materials

June 26, 2025
Author(s)
Polette Centellas, Stian Romberg, Ran Tao, Alexander Landauer, Karl Schoch, Huong Giang Nguyen, Gale Holmes, Gery Stafford, Christopher Soles
Residual stresses inevitably develop in thermosetting materials used for semiconductor packaging during the curing process and in service. Understanding the development of these deleterious stresses is necessary for improving predictive models and

Enabling data-driven design of block copolymer self-assembly

June 21, 2025
Author(s)
Chiara Magosso, Irdi Murataj, Michele Perego, Gabriele Seguini, Debra Audus, Gianluca Milano, Federico Ferrarese Lupi
Abstract Here we present a database composed of scanning electron microscope images of self-assembled block copolymers. The fabrication process parameters, structural properties and microscope information are all contained in the image metadata, making a

An Autonomous Agent for Soft Material Structural Optimization and Discovery

June 6, 2025
Author(s)
Tyler Martin, Austin McDannald, Aaron Kusne, Peter Beaucage
The pace of formulation (re)development and design is rapidly increasing as both consumers and new legislation demand products that do less harm to the environment while maintaining high standards of performance. To meet this need, we have developed an

Controlling Impact Mitigation via Stimuli-Responsive Bouligand Nanostructures

May 16, 2025
Author(s)
Sujin Lee, Katherine Evans, Jeremiah Woodcock, Jan Obrzut, Liping Huang, Christopher Soles, Edwin Chan
Critical to their survival, natural organisms have developed exoskeletons that can withstand and inflict damage over their lifetime. The Bouligand structure of the exoskeleton plays a key role in toughness and damage resistance under external impacts

Sterilizable Vertical n-Type Organic Electrochemical Transistors for Skin-conformal ECG Monitoring

May 6, 2025
Author(s)
Ji Hwan Kim, Inho Lee, Won-June Lee, Dongjoon Shin, Hyeongbeom Lee, Lucas Flagg, Jagrity Chaudhary, Liyan You, Keehoon Kang, Jianguo Mei, Sungjun Park
The development of stable, high-performance epidermal biosignal monitoring devices is critical for advancing wearable healthcare technologies. Here, we present a novel electrochemical transistor-based biosignal sensor utilizing a 4-terminal vertical

Multistage Networks for Glassy Holographic Photopolymers

April 29, 2025
Author(s)
Alexander Osterbaan, Andrew Sias, Marianela Trujillo-Lemon, Kieran Fung, Jason Killgore, ROBERT MCLEOD, Christopher Bowman
In the writing of holographic photopolymers, the addition of a third stage cure to the typical polyurethane matrix and acrylate writing monomer steps is used here to modify the ultimate thermomechanical properties of the final holographic photopolymer

Bridging the Impact Response of Polymers from the Nanoscale to the Macroscale

April 18, 2025
Author(s)
Kyle Callahan, Katherine Evans, Santanu Kundu, Edwin Chan
Impact from a fast-moving object is a common event, but it can vary greatly in terms of scale, speed, and energy depending on the specific case. Recent research has suggested that scaling analysis can be used to relate the impact performance of materials

Controlling Doping Levels of n-PBDF Through Chemical Dedoping and Doping

April 15, 2025
Author(s)
Zhifan Ke, Lucas Flagg, Dean DeLongchamp, jianguo mei
Doping levels of conjugated polymers determine their conductivity, energetics, and optical properties. The recent discovery of highly conductive n-doped Poly (3,7-dihydrobenzo[1,2-b:4,5-b′]difuran-2,6-dione) (n-PBDF) has opened new possibilities for n-type
Displaying 1 - 25 of 1922
Was this page helpful?