Nanoscale Kinetics
Nanoscale Kinetics - Related Videos
07:15
A Novel Method for In Situ Electromechanical Characterization of Nanoscale Specimens
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Cited by 2 •
2017
Isolating electrical and thermal effects on electrically assisted deformation (EAD) is very difficult using macroscopic samples. Metallic sample micro- and nanostructures together with a custom test procedure have been developed to evaluate the impact of applied current on the formation without joule heating and evolution of dislocations on these samples.
05:41
Rapid Mix Preparation of Bioinspired Nanoscale Hydroxyapatite for Biomedical Applications
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Cited by 19 •
2017
This paper describes a novel method for the rapid manufacture of high quality bioinspired nanoscale hydroxyapatite. This biomaterial is of great significance in the manufacture of a wide range of innovative medical devices for clinical applications in orthopedics, craniofacial surgery and dentistry.
03:07
Kinetic Molecular Theory: Molecular Velocities, Temperature, and Kinetic Energy
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2020
The kinetic molecular theory qualitatively explains the behaviors described by the various gas laws. The postulates of this theory may be applied in a more quantitative fashion to derive these individual laws. Collectively, the molecules in a sample of gas have average kinetic energy and average speed; but individually, they move at different speeds. Molecules frequently undergo elastic collisions in which the momentum is conserved. Since the colliding molecules are deflected off at different...
08:07
Enzyme Assays and Kinetics
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2023
Enzyme kinetics describes the catalytic effects of enzymes, which are biomolecules that facilitate chemical reactions necessary for living organisms. Enzymes act on molecules, referred to as substrates, to form products. Enzyme kinetic parameters are determined via assays that directly or indirectly measure changes in substrate or product concentration over time. This video will cover the basic principles of enzyme kinetics (including rate equations) and kinetic models. The concepts governing...
11:00
High-throughput Detection of Respiratory Pathogens in Animal Specimens by Nanoscale PCR
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Cited by 10 •
2016
High-throughput testing of DNA and RNA based pathogens by nanoscale PCR is described using a syndromic canine and equine respiratory PCR panel.
FAQs
At nanometer dimensions, a larger fraction of atoms or molecules lies at an interface rather than in the interior. Surface chemistry can therefore exert a stronger influence on reaction rates, transport, and stability than it does in bulk material. Engineering researchers use this relationship to connect particle or device dimensions with catalytic, sensing, and energy-related performance.
Short diffusion lengths can reduce the distance that species must travel before reaching an interface or reaction site, while confinement can change how matter and energy behave in restricted spaces. Together, these effects may produce rate constants and transport behavior that differ from bulk systems. Comparing dimensions and environments helps engineers identify when nanoscale designs offer a performance advantage.
At small dimensions, individual collisions and molecular fluctuations can contribute more visibly to observed behavior than averaged bulk descriptions suggest. Reaction pathways and measured rates may therefore reflect probabilistic events rather than a single smooth trajectory. Reaction-diffusion models help represent these coupled changes in movement and reaction, supporting interpretation of nanoscale kinetics experiments.
Researchers commonly combine time-resolved spectroscopy, microscopy, and reaction-diffusion modeling. Time-resolved measurements follow changes as they occur, microscopy supplies spatially resolved observations, and models connect reaction and transport processes. Using these approaches together can reveal both the timing and pathway of nanoscale changes, rather than reporting only a final state or averaged bulk response.
It links processing conditions and surface chemistry to practical outcomes such as performance and stability. This connection is important when engineers design catalysts, semiconductor devices, sensors, energy-storage materials, or nanomedicines, because nanoscale rates and pathways can influence how each system functions. The resulting measurements provide a basis for adjusting material features and operating conditions.
They can show how processing conditions and surface chemistry affect behavior before a material or device is considered at larger scale. By identifying rate changes, transport effects, and stability-relevant pathways at small dimensions, researchers can relate nanoscale observations to engineering performance. This helps frame scale-up as a connection between controlled nanoscale properties and the behavior required in practical systems.