![]() Engineers at the University of California San Diego have developed tiny ultrasound-powered robots that can swim through blood, removing harmful bacteria along with the toxins they produce. These proof-of-concept nanorobots could one day offer a safe and efficient way to detoxify and decontaminate biological fluids. |
|
Researchers built the nanorobots by coating gold nanowires with a hybrid of platelet and red blood cell membranes. This hybrid cell membrane coating allows the nanorobots to perform the tasks of two different cells at once—platelets, which bind pathogens like MRSA bacteria (an antibiotic-resistant strain of Staphylococcus aureus), and red blood cells, which absorb and neutralize the toxins produced by these bacteria. The gold body of the nanorobots responds to ultrasound, which gives them the ability to swim around rapidly without chemical fuel. This mobility helps the nanorobots efficiently mix with their targets (bacteria and toxins) in blood and speed up detoxification. | |
The work, published in Science Robotics (“Hybrid biomembrane-functionalized nanorobots for concurrent removal of pathogenic bacteria and toxins”), combines technologies pioneered by Joseph Wang and Liangfang Zhang, professors in the Department of NanoEngineering at the UC San Diego Jacobs School of Engineering. Wang’s team developed the ultrasound-powered nanorobots, and Zhang’s team invented the technology to coat nanoparticles in natural cell membranes. |

Image Credit: YouTube/UCSD
News This Week
In lab study, nanoparticle shows promising results for treating severe allergies
For about one in 13 children in the U.S., normally harmless foodstuffs such as milk, eggs and peanuts can send the body's natural defenses into overdrive. Symptoms of food allergies can vary widely, but at [...]
Platelet-Rich Plasma Applications for Achilles Tendon Repair: A Bridge between Biology and Surgery
Frank Boehm (Nanoapps Medical Inc. Founder) has contributed to 'Platelet-Rich Plasma Applications for Achilles Tendon Repair: A Bridge between Biology and Surgery', published by International Journal of Molecular Sciences/ MDP. Abstract: Achilles tendon ruptures [...]
SARS_CoV_2 Can Infect Neurons and Damage Brain Tissue
Using both mouse and human brain tissue, researchers at Yale School of Medicine have discovered that SARS-CoV-2 can directly infect the central nervous system and have begun to unravel some of the virus’s effects on [...]
MIT algorithm discovers antibiotic that can fight drug-resistant diseases
A deep learning algorithm developed at MIT has discovered new antibiotics that can treat drug-resistant diseases by killing 35 powerful bacteria. The pathogens that the halicin antibiotic has targetted include Acinetobacter baumannii, which was nicknamed [...]
Article: ‘Digital Rights in the Age of Super Intelligence’ by Eva Kaili
In our transforming world, digital technology has the critical mass to push our frontiers and release unlimited potential. As the wave of digital transformation soars high, improving our lives, industries and economies, we must not [...]
Scientists Discover a Way to Control the Immune System’s “Natural Killer” Cells With “Invisible” Stem Cells
UC San Francisco scientists have discovered a new way to control the immune system’s “natural killer” (NK) cells, a finding with implications for novel cell therapies and tissue implants that can evade immune rejection. The [...]
Simulations Reveal Nature’s Design For Error Correction During DNA Replication
A team led by scientists at Georgia State University simulates the precise transition between the processes of DNA synthesis and proofreading DNA replication is one of the most important processes in biology, responsible for ensuring [...]
‘Long Covid’ is anything but a mild illness
With the excitement of the Covid vaccine’s arrival, it may be easy to forget and ignore those of us with “long Covid”, who are struggling to reclaim our previous, pre-viral lives and continue to live [...]
Leave A Comment