{"id":12907,"date":"2021-06-30T15:20:05","date_gmt":"2021-06-30T14:20:05","guid":{"rendered":"https:\/\/www.innovationnewsnetwork.com\/?p=12907"},"modified":"2021-08-06T13:39:10","modified_gmt":"2021-08-06T12:39:10","slug":"us-researchers-make-a-breakthrough-in-future-nanorobot-technology","status":"publish","type":"post","link":"https:\/\/www.innovationnewsnetwork.com\/us-researchers-make-a-breakthrough-in-future-nanorobot-technology\/12907\/","title":{"rendered":"US researchers make a breakthrough in future nanorobot technology"},"content":{"rendered":"
The discovery, accomplished by a team of researchers at the University of Colorado Boulder<\/a>, has potentially distinguished the perfect base in which to manufacture the next generation of nanorobot technology, with these novel particles \u2013 named nanoswimmers \u2013 comprised of characteristics<\/a> that make them highly versatile and ideal for a range of applications.<\/p>\n The nanoswimmers have been demonstrated to escape from mazes up to 20 times quicker than comparable passive particles, possibly making them ideal in fields such as industrial clean-up operations and medication delivery. Nanorobot technology containing nanoswimmers could, theoretically, be employed to deliver drugs to specific areas of the body, enhance water filtration, or even remediate contaminated soil, as they display proficiency in escaping cavities within maze-like structures.<\/p>\n The research is published in the Proceedings of the National Academy of Sciences.<\/em><\/p>\n Daniel Schwartz, the senior author of the research and a Glenn L. Murphy Endowed Professor of chemical and biological engineering, said: “This is the discovery of an entirely new phenomenon that points to a broad potential range of applications.”<\/p>\n Theoretical physicists discovered nanoswimmers around two decades ago, and although they captivated scientists\u2019 imaginations with their potential purposes, due to being difficult to observe, they have not been realised yet as researchers have been unable to model their movement.<\/p>\n Nanoswimmers \u2013 also known as Janus particles \u2013 are minuscule spherical particles comprised of silica or polymer, containing different chemical properties on each side of the sphere. One of the hemispheres of the particle instigates chemical reactions, while the other does not, generating a chemical field that enables the particle to consume energy from the environment, converting it into self-propulsion.<\/p>\n “In biology and living organisms, cell propulsion is the dominant mechanism that causes motion to occur, and yet, in engineered applications, it’s rarely used. Our work suggests that there is a lot we can do with self-propulsion,” said Schwartz.<\/p>\n Passive particles \u2013 known as Brownian particles \u2013 display random movement, with the team converting these passive Brownian particles into Janus particles to conduct their research, subsequently making the resulting nanoswimmers navigate a maze made of a porous medium, comparing the efficiency and effectiveness between the two particles.<\/p>\n The Janus nanoswimmer particles were 20 times more effective at escaping cavities than the Brownian particles, strategically searching for holes along the cavity wall, which allowed them to escape much quicker, with their self-propulsion providing them with an energy boost to exit the holes.<\/p>\n “We know we have a lot of applications for nanorobot technology, especially in very confined environments, but we didn’t really know how they move and what the advantages are compared to traditional Brownian particles. That’s why we started a comparison between these two and we found that nanoswimmers are able to use a totally different way to search around these maze environments,” said Haichao Wu, lead author of the paper and graduate student in chemical and biological engineering.<\/p>\n Although extremely diminutive \u2013 around 250 nanometres (much smaller than the head of a pin), they are scalable, meaning they could be fashioned into nanorobot technology that could navigate labyrinths of human tissue to deliver medication or permeate the earth to eradicate environmentally hazardous pollutants.<\/p>\nA discovery 20 years in the making<\/h3>\n
The framework for nanorobot technology<\/h3>\n