Nanotechnology is the manipulation of matter with at least one dimension sized from 1 to 100 nanometers (nm). At this scale, commonly known as the nanoscale, surface area and quantum mechanical effects become important in describing properties of matter. This definition of nanotechnology includes all types of research and technologies that deal with these special properties. It is common to see the plural form "nanotechnologies" as well as "nanoscale technologies" to refer to research and applications whose common trait is scale. An earlier understanding of nanotechnology referred to the particular technological goal of precisely manipulating atoms and molecules for fabricating macroscale products, now referred to as molecular nanotechnology.
A molecular assembler, as defined by K. Eric Drexler, is a "proposed device able to guide chemical reactions by positioning reactive molecules with atomic precision". A molecular assembler is a kind of molecular machine. Some biological molecules such as ribosomes fit this definition. This is because they receive instructions from messenger RNA and then assemble specific sequences of amino acids to construct protein molecules. However, the term "molecular assembler" usually refers to theoretical human-made devices.
Markus J. Buehler is an American materials scientist and engineer at the Massachusetts Institute of Technology (MIT), where he holds the endowed McAfee Professorship of Engineering chair. He is a member of the faculty at MIT's Department of Civil and Environmental Engineering, where he directs the Laboratory for Atomistic and Molecular Mechanics (LAMM), and also a member of MIT's Center for Computational Science and Engineering (CCSE) in the Schwarzman College of Computing. His scholarship spans science to art, and he is also a composer of experimental, classical and electronic music, with an interest in sonification. He has given several TED talks about his work.
In the context of chemistry, molecular physics, physical chemistry, and molecular modelling, a force field is a computational model that is used to describe the forces between atoms within molecules or between molecules as well as in crystals. Force fields are a variety of interatomic potentials. More precisely, the force field refers to the functional form and parameter sets used to calculate the potential energy of a system on the atomistic level. Force fields are usually used in molecular dynamics or Monte Carlo simulations. The parameters for a chosen energy function may be derived from classical laboratory experiment data, calculations in quantum mechanics, or both. Force fields utilize the same concept as force fields in classical physics, with the main difference being that the force field parameters in chemistry describe the energy landscape on the atomistic level. From a force field, the acting forces on every particle are derived as a gradient of the potential energy with respect to the particle coordinates.
Multiscale modeling or multiscale mathematics is the field of solving problems that have important features at multiple scales of time and/or space. Important problems include multiscale modeling of fluids, solids, polymers, proteins, nucleic acids as well as various physical and chemical phenomena.
nanoHUB.org is a science and engineering gateway comprising community-contributed resources and geared toward education, professional networking, and interactive simulation tools for nanotechnology. Funded by the United States National Science Foundation (NSF), it is a product of the Network for Computational Nanotechnology (NCN). NCN supports research efforts in nanoelectronics; nanomaterials; nanoelectromechanical systems (NEMS); nanofluidics; nanomedicine, nanobiology; and nanophotonics.
Supriyo Datta is an Indian–American researcher and author. A leading figure in the modeling and understanding of nano-scale electronic conduction, he has been called "one of the most original thinkers in the field of nanoscale electronics."
Gerhard Klimeck is a German-American scientist and author in the field of nanotechnology. He is a professor of Electrical and Computer Engineering at Purdue University School of Electrical and Computer Engineering.
Sharon C. Glotzer is an American scientist and "digital alchemist", the Anthony C. Lembke Department Chair of Chemical Engineering, the John Werner Cahn Distinguished University Professor of Engineering and the Stuart W. Churchill Collegiate Professor of Chemical Engineering at the University of Michigan, where she is also professor of materials science and engineering, professor of physics, professor of macromolecular science and engineering, and professor of applied physics. She is recognized for her contributions to the fields of soft matter and computational science, most notably on problems in assembly science and engineering, nanoscience, and the glass transition, for which the elucidation of the nature of dynamical heterogeneity in glassy liquids is of particular significance. She is a member of the National Academy of Sciences, the National Academy of Engineering, and the American Academy of Arts and Sciences.
Mark S. Lundstrom is an American electrical engineering researcher, educator, and author. He is known for contributions to the theory, modeling, and understanding of semiconductor devices, especially nanoscale transistors, and as the creator of the nanoHUB, a major online resource for nanotechnology. Lundstrom is Don and Carol Scifres Distinguished Professor of Electrical and Computer Engineering and in 2020 served as Acting Dean of the College of Engineering at Purdue University, in West Lafayette, Indiana.
Oleg V. Prezhdo is a Ukrainian–American physical chemist whose research focuses on non-adiabatic molecular dynamics and time-dependent density functional theory (TDDFT). His research interests range from fundamental aspects of semi-classical and quantum-classical physics to excitation dynamics in condensed matter and biological systems. His research group focuses on the development of new theoretical models and computational tools aimed at understanding chemical reactivity and energy transfer at a molecular level in complex condensed phase environment. Since 2014, he is a professor of chemistry and of physics & astronomy at the University of Southern California.
Computational materials science and engineering uses modeling, simulation, theory, and informatics to understand materials. The main goals include discovering new materials, determining material behavior and mechanisms, explaining experiments, and exploring materials theories. It is analogous to computational chemistry and computational biology as an increasingly important subfield of materials science.
This glossary of nanotechnology is a list of definitions of terms and concepts relevant to nanotechnology, its sub-disciplines, and related fields.
In the context of chemistry and molecular modelling, the Interface force field (IFF) is a force field for classical molecular simulations of atoms, molecules, and assemblies up to the large nanometer scale, covering compounds from across the periodic table. It employs a consistent classical Hamiltonian energy function for metals, oxides, and organic compounds, linking biomolecular and materials simulation platforms into a single platform. The reliability is often higher than that of density functional theory calculations at more than a million times lower computational cost. IFF includes a physical-chemical interpretation for all parameters as well as a surface model database that covers different cleavage planes and surface chemistry of included compounds. The Interface Force Field is compatible with force fields for the simulation of primarily organic compounds and can be used with common molecular dynamics and Monte Carlo codes. Structures and energies of included chemical elements and compounds are rigorously validated and property predictions are up to a factor of 100 more accurate relative to earlier models.
Rodney Dewayne Priestley is an American chemical engineer and professor at Princeton University. His research considers the phase transitions of polymers and their application in electronic devices and healthcare. In 2020 he was made the Princeton University Vice Dean of Innovation. He was named dean of The Graduate School effective June 1, 2022.
Arthi Jayaraman is an Indian-American scientist who is the Centennial Term Professor for Excellence in Research and Education at the University of Delaware. Her research considers the development of computational models to better understand polymer nanocomposites and biomaterials. Jayaraman was elected Fellow of the American Physical Society in 2020.
Clare McCabe is an American chemical engineer who is Cornelius Vanderbilt Chair of Engineering and professor of engineering at Vanderbilt University. She was elected Fellow of the American Association for the Advancement of Science in 2019. Her research makes use of molecular modelling to understand the properties of biological systems, fluids and nanomaterials.
Prineha Narang is an American physicist and computational material scientist. She is a Professor of Physical Sciences and Howard Reiss Chair at the University of California, Los Angeles (UCLA). Narang currently serves as a U.S. Science Envoy approved by the Secretary of State to identify opportunities for science and technology cooperation. Before moving to UCLA, she was first an Environmental Fellow at Harvard University Center for the Environment and then an Assistant Professor in the John A. Paulson School of Engineering and Applied Sciences at Harvard University. Narang’s work has been recognized internationally by many awards and a variety of special designations, including the Mildred Dresselhaus Prize, the 2021 IUPAP Young Scientist Prize in Computational Physics, a Friedrich Wilhelm Bessel Research Award from the Alexander von Humboldt Foundation, and a Max Planck Sabbatical Award from the Max Planck Society. Narang also received a National Science Foundation CAREER Award in 2020, was named a Moore Inventor Fellow by the Gordon and Betty Moore Foundation for the development for a fundamentally new strategy for single molecule sensing and environmental toxin metrology using picoscale quantum sensors, CIFAR Azrieli Global Scholar by the Canadian Institute for Advanced Research, and a Top Innovator by MIT Tech Review. Narang was awarded a Guggenheim Fellowship in 2023.
Gregory M. Odegard is a materials researcher and academic. He is the John O. Hallquist Endowed Chair in Computational Mechanics in the Department of Mechanical Engineering – Engineering Mechanics at Michigan Technological University and the director of the NASA Institute for Ultra-Strong Composites by Computational Design.
