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On Tue, 4 Mar, 4:01 PM UTC
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AI 'lights up' nanoparticles, revealing hidden atomic dynamics
A team of scientists have developed a method to illuminate the dynamic behavior of nanoparticles, which are foundational components in the creation of pharmaceuticals, electronics, and industrial and energy-conversion materials. The advance, reported in the journal Science, combines artificial intelligence with electron microscopy to render visuals of how these tiny bits of matter respond to stimuli. "Nanoparticle-based catalytic systems have a tremendous impact on society," explains Carlos Fernandez-Granda, director of NYU's Center for Data Science and a professor of mathematics and data science, one of the paper's authors. "It is estimated that 90% of all manufactured products involve catalytic processes somewhere in their production chain. We have developed an artificial-intelligence method that opens a new window for the exploration of atomic-level structural dynamics in materials." The work, which also included researchers from Arizona State University, Cornell University, and the University of Iowa, blends electron microscopy with AI to enable scientists to see the structures and movements of molecules that are one-billionth of a meter in size at an unprecedented time resolution. "Electron microscopy can capture images at a high spatial resolution, but because of the velocity at which the atomic structure of nanoparticles changes during chemical reactions, we need to gather data at a very high speed to understand their functionality," explains Peter A. Crozier, a professor of materials science and engineering at Arizona State University and one of the paper's authors. "This results in extremely noisy measurements. We have developed an artificial-intelligence method that learns how to remove this noise -- automatically -- enabling the visualization of key atomic-level dynamics." Observing the movement of atoms on a nanoparticle is crucial to understand functionality in industrial applications. The problem is that the atoms are barely visible in the data, so scientists cannot be sure how they are behaving -- the equivalent of tracking objects in a video taken at night with an old camera. To address this challenge, the paper's authors trained a deep neural network, AI's computational engine, that is able to "light up" the electron-microscope images, revealing the underlying atoms and their dynamic behavior. "The nature of changes in the particle is exceptionally diverse, including fluxional periods, manifesting as rapid changes in atomic structure, particle shape, and orientation; understanding these dynamics requires new statistical tools," explains David S. Matteson, a professor and associate chair of Cornell University's Department of Statistics and Data Science, director of the National Institute of Statistical Sciences, and one of the paper's authors. "This study introduces a new statistic that utilizes topological data analysis to both quantify fluxionality and to track the stability of particles as they transition between ordered and disordered states."
[2]
Scientists use AI to better understand nanoparticles
A team of scientists has developed a method to illuminate the dynamic behavior of nanoparticles, which are foundational components in the creation of pharmaceuticals, electronics, and industrial and energy-conversion materials. The advance, reported in the journal Science, combines artificial intelligence with electron microscopy to render visuals of how these tiny bits of matter respond to stimuli. "Nanoparticle-based catalytic systems have a tremendous impact on society," explains Carlos Fernandez-Granda, director of NYU's Center for Data Science and a professor of mathematics and data science, one of the paper's authors. "It is estimated that 90 percent of all manufactured products involve catalytic processes somewhere in their production chain. We have developed an artificial-intelligence method that opens a new window for the exploration of atomic-level structural dynamics in materials." The work, which also included researchers from Arizona State University, Cornell University, and the University of Iowa, blends electron microscopy with AI to enable scientists to see the structures and movements of molecules that are one-billionth of a meter in size at an unprecedented time resolution. "Electron microscopy can capture images at a high spatial resolution, but because of the velocity at which the atomic structure of nanoparticles changes during chemical reactions, we need to gather data at a very high speed to understand their functionality," explains Peter A. Crozier, a professor of materials science and engineering at Arizona State University and one of the paper's authors. "This results in extremely noisy measurements. We have developed an artificial-intelligence method that learns how to remove this noise -- automatically -- enabling the visualization of key atomic-level dynamics." Observing the movement of atoms on a nanoparticle is crucial to understand functionality in industrial applications. The problem is that the atoms are barely visible in the data, so scientists cannot be sure how they are behaving -- the equivalent of tracking objects in a video taken at night with an old camera. To address this challenge, the paper's authors trained a deep neural network, AI's computational engine, that is able to "light up" the electron-microscope images, revealing the underlying atoms and their dynamic behavior. "The nature of changes in the particle is exceptionally diverse, including fluxional periods, manifesting as rapid changes in atomic structure, particle shape, and orientation; understanding these dynamics requires new statistical tools," explains David S. Matteson, a professor and associate chair of Cornell University's Department of Statistics and Data Science, director of the National Institute of Statistical Sciences, and one of the paper's authors. "This study introduces a new statistic that utilizes topological data analysis to both quantify fluxionality and to track the stability of particles as they transition between ordered and disordered states." The research was supported by grants from the National Science Foundation (OAC-1940263, OAC-2104105, CBET 1604971, DMR 184084, CHE 2109202, OAC-1940097, OAC-2103936, OAC-1940124, DMS-2114143).
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Scientists combine AI with electron microscopy to visualize atomic-level dynamics of nanoparticles, potentially revolutionizing various industries including pharmaceuticals and electronics.
In a groundbreaking development, a team of scientists has successfully combined artificial intelligence (AI) with electron microscopy to illuminate the dynamic behavior of nanoparticles. This innovative method, detailed in a recent publication in the journal Science, allows researchers to visualize how these minuscule particles, crucial in various industries, respond to stimuli at an atomic level 12.
Nanoparticles play a fundamental role in the creation of pharmaceuticals, electronics, and industrial and energy-conversion materials. Carlos Fernandez-Granda, director of NYU's Center for Data Science and a professor of mathematics and data science, emphasizes the importance of this research, stating, "Nanoparticle-based catalytic systems have a tremendous impact on society. It is estimated that 90% of all manufactured products involve catalytic processes somewhere in their production chain" 1.
While electron microscopy can capture high-resolution images, the rapid changes in nanoparticles' atomic structure during chemical reactions pose a significant challenge. Peter A. Crozier, a professor of materials science and engineering at Arizona State University, explains, "Because of the velocity at which the atomic structure of nanoparticles changes during chemical reactions, we need to gather data at a very high speed to understand their functionality" 2.
To address this challenge, the research team developed an AI method that employs a deep neural network. This computational engine effectively "lights up" the electron-microscope images, revealing the underlying atoms and their dynamic behavior. The AI learns to automatically remove noise from the extremely noisy measurements, enabling the visualization of key atomic-level dynamics 12.
David S. Matteson, a professor and associate chair of Cornell University's Department of Statistics and Data Science, highlights the complexity of nanoparticle behavior: "The nature of changes in the particle is exceptionally diverse, including fluxional periods, manifesting as rapid changes in atomic structure, particle shape, and orientation" 2. To tackle this complexity, the study introduces a new statistic that utilizes topological data analysis to quantify fluxionality and track particle stability as they transition between ordered and disordered states 1.
This research represents a collaborative effort involving scientists from New York University, Arizona State University, Cornell University, and the University of Iowa. The breakthrough opens new avenues for exploring atomic-level structural dynamics in materials, potentially revolutionizing our understanding of nanoparticles and their applications across various industries 12.
The study, supported by grants from the National Science Foundation, marks a significant step forward in materials science and nanotechnology. As researchers continue to refine and apply this AI-driven approach, it could lead to advancements in catalysis, drug development, and the creation of more efficient electronic and energy-conversion materials.
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Researchers develop Deep Nanometry, an AI-enhanced technique for detecting rare nanoparticles, with potential applications in early cancer detection and various medical fields.
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Researchers at SLAC are leveraging artificial intelligence to optimize particle accelerators, process big data, and accelerate drug discovery, pushing the boundaries of scientific exploration.
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Scientists discover luminescent nanocrystals with unique optical bistability, potentially revolutionizing AI and data processing through faster, more energy-efficient optical computing methods.
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MIT researchers have developed an AI model that can accurately predict the structure of crystalline materials, potentially accelerating materials discovery and design. This breakthrough could have significant implications for various industries, from electronics to energy storage.
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