MIT physicists have developed a new method that could someday provide a way to customize multilayered nanoparticles with preferred properties, potentially for use in cloaking systems, displays, or biomedical devices. It may also help physicists handle a range of thorny research issues, in ways that could in certain cases be orders of magnitude faster than present approaches.
The innovation employs computational neural networks, a form of artificial intelligence, to “learn” how a nanoparticle’s structure influences its behavior, in this case, the way it scatters various colors of light, based on numerous training examples. Then, having learned the association, the program can fundamentally be run backward to design a particle with a preferred set of light-scattering properties — a process known as inverse design.
The results are being published in the journal Science Advances, in a paper by MIT senior John Peurifoy, research affiliate Yichen Shen, graduate student Li Jing, professor of physics Marin Soljačić, and five others.
While the method could eventually result in practical applications, Soljačić says, the research is mainly of scientific interest as a way of predicting the physical properties of a range of nano-engineered materials without necessitating the computationally intensive simulation processes that are usually used to handle such issues.
Soljačić says that the objective was to study at neural networks, a field that has witnessed a lot of progress and produced excitement in recent years, to see, “whether we can use some of those techniques in order to help us in our physics research. So basically, are computers ‘intelligent’ enough so that they can do some more intelligent tasks in helping us understand and work with some physical systems?”
Image Credit: Vanderbilt University
News This Week
Nasal Vaccines: Stopping the COVID-19 Virus Before It Reaches the Lungs
The Pfizer-BioNTech and Moderna mRNA vaccines have played a large role in preventing deaths and severe infections from COVID-19. But researchers are still in the process of developing alternative approaches to vaccines to improve [...]
NASA Tracking a Huge, Growing Anomaly in Earth’s Magnetic Field – with video
NASA is actively monitoring a strange anomaly in Earth's magnetic field: a giant region of lower magnetic intensity in the skies above the planet, stretching out between South America and southwest Africa. This vast, developing [...]
New, Better Models Show How Infectious Diseases Like COVID-19 Spread
Infectious diseases such as COVID-19 can spread rapidly across the globe. Models that can predict how such diseases spread will strengthen national surveillance systems and improve public health decision-making. The COVID-19 pandemic has emphasized the [...]
Human Antibodies Discovered That Can Block Multiple Coronaviruses Including COVID-19
Results from a Scripps Research and UNC team pave the way for a vaccine and therapeutic antibodies that could be stockpiled to fight future coronavirus pandemics. A team of scientists from Scripps Research and [...]
Nanotechnology could be used to treat lymphedema
The human body is made up of thousands of tiny lymphatic vessels that ferry white blood cells and proteins around the body, like a superhighway of the immune system. It's remarkably efficient, but if [...]
DNA Nanotechnology Tools – From Design to Applications
Suite of DNA nanotechnology devices engineered to overcome specific bottlenecks in the development of new therapies, diagnostics, and understanding of molecular structures. DNA nanostructures with their potential for cell and tissue permeability, biocompatibility, and [...]
Regenerating bone with deer antler stem cells
Scientists from a collection of Chinese research institutions collaborated on a study of organ regeneration in mammals, finding deer antler blastema progenitor cells are a possible source of conserved regeneration cells in higher vertebrates. [...]
AI Takes On Cancer: Analysis of Mutations Could Lead to Improved Therapy
Cancer is a complex and diverse disease, and its range of associated mutations is vast. The combination of these genomic changes in an individual is referred to as their “mutational landscape.” These landscapes vary [...]
Leave A Comment