Nanoparticle vaccine for COVID-19 spurs robust immune response in preclinical tests The novel vaccine technology, developed at Scripps Research, uses virus-like protein nanoparticles to elicit high levels of protective antibodies.
September 21, 2020
LA JOLLA, CA In a new study that demonstrates the promise of a novel vaccine approach for COVID-19, Scripps Research scientist Jiang Zhu, PhD, showed that his protein nanoparticle technology successfully triggered a strong immune response in mice. Zhu, who co-founded the spinoff company Ufovax to commercialize the technology and manufacturing platform, says he hopes to advance the vaccine into clinical trials early next year.
The nanoparticle vaccine technology leverages a unique design that's unlike the majority of other COVID-19 vaccine candidates now in clinical testing. Each nanoparticle in the vaccine mimics the natural ball-like shape of a virus, which the immune system is trained to immediately recognize, explains Zhu, associate professor in the Department of Integrative Structural and Computational Biology.
These microscopic spheres are then studded with spike proteins resembling those of the SARS-CoV-2 virus.
Spike proteins are the tools this virus uses to efficiently attach to and infect healthy cells, so we need the immune system to recognize them as the enemy, Zhu says. Our vaccine design enables immune cells to encounter these proteins in a more natural conformation embedded on a spherical particle so they'll know what to do when they face the virus in real life.
By contrast, most experimental COVID-19 vaccines rely on full-length spike proteins that have been modified to remain stable in the body as they interact with the immune system; they are not connected to a virus-like particle. Thus, they may not generate strong enough of an antibody response to prevent COVID-19, Zhu says.
In his pursuit of a safer and more effective path to COVID-19 immunity, Zhu designed spike proteins and attached them to the spherical protein nanoparticles through an elegant self-assembly process he says will ensure the forming a ball-shape particle of a fixed size and enable efficient vaccine production on an industrial scale.
Notably, as part of their work to optimize the spike protein, he and his team identified a problematic element of the spike called the HR2 stalk, which is a flexible hinge connecting the spike to the virus surface, and decided to delete that segment from spike proteins used in the vaccine.
The scientists then tested the nanoparticle vaccine against the altered spike protein known as S2P that's used in most other vaccines, as well as against their own engineered spike protein. To determine efficacy of each approach, they measured antibody responses in mice.
Zhu's nanoparticle vaccine elicited neutralizing antibodies at levels of up to ten times greater than the S2P spike proteins alone and induced critically needed T-cell immunity. The research appears in bioRxiv, an open-access repository of studies not yet published in a peer-reviewed scientific journal.
Our study provides a promising next-generation COVID-19 vaccine candidate that is ready for evaluation in human trials, Zhu says.
Zhu has previously used his nanoparticle technology to develop investigational vaccines for other infectious diseases including SARS, MERS, HIV, RSV, Ebola, malaria and tuberculosis.
The study, Self-assembling nanoparticles presenting receptor binding domain and stabilized spike as next-generation COVID-19 vaccines, was authored by Linling He, Xiaohe Lin, Ying Wang, Ciril Abraham, Cindy Sou, Timothy Ngo, Yi Zhang, Ian Wilson and Jiang Zhu.
The work was funded by the National Institutes of Health [AI129698 and AI140844] and Ufovax. Ufovax holds exclusive intellectual property rights to the technology and several vaccine products, including for COVID-19.
COVID-19 Zhu, Jiang
Most recent headlines
05/01/2027
Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be ...
04/08/2026
Dalet, a leading technology and service provider for media-rich organizations, t...
04/07/2026
April 7 2026, 19:00 (PDT) Detective Conan: Fallen Angel of the Highway Opens in...
01/06/2026
In its sixth year, the broadcaster's coverage has become a global brand and ...
01/06/2026
Designed to solve a common problem in broadcasting, the automated workflow detects, identifies, removes, and documents copyrighted music
AudioShake has introdu...
01/06/2026
The sports-analytics company combines its data with proprietary AI to help leagu...
01/06/2026
Category line-up & sponsors announced
Photo: Paul Clarke
The Production Music Awards (PMA) have announced that submissions are now officially open ahead of...
01/06/2026
New hybrid sample/synthesis instrument revealed
Excite Audio have just released the latest instalment in their Evolve series, which has been developed in co...
01/06/2026
Latest TONEX expansion captures three rare vintage amps
The newest addition to IK Multimedia's ever-growing TONEX line-up introduces a set of three incr...
01/06/2026
Musically intelligent soft synth gets upgraded
Scaler Music will be probably be best known to many for their music theory tools, but their product range al...
01/06/2026
SBS confirms its broadcast sponsors for FIFA World Cup 2026
1 June, 2026
Media releases
SBS has secured Hyundai, Hisense, Macca's, Rexona, bet365, Com...
01/06/2026
Rohde & Schwarz Satellite Industry Days 2026 guided by the motto From Earth to ...
01/06/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/06/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/06/2026
Marshall Electronics is showcasing a comprehensive lineup of next-generation POV cameras, purpose-built to power today's connected AV environments, at InfoC...
01/06/2026
Adobe Announces Concept to Vector
Deepa Subramaniam June 1, 2026
0 Comments
One of the biggest frustrations we hear from designers is how difficult it...
01/06/2026
Vampire Feature Night Patrol Graded with DaVinci Resolve Studio
Brie Clayton June 1, 2026
0 Comments
Colorist shapes dark, gritty tone for horror thri...
01/06/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/06/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/06/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/06/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/06/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/06/2026
Mardi 2 juin 14h00
FilmLight (ARRI), 10 rue Ren Boulanger, 75010 Paris
Rejoignez-nous pour d couvrir comment FLAPI (l'API FilmLight) peut transformer e...
01/06/2026
January 6 2026, 05:30 (PST) Dolby Sets the New Standard for Premium Entertainment at CES 2026
Throughout the week, Dolby brings to life the latest innovatio...
31/05/2026
Olivia P rez-Collellmir to Premiere Original Work at Gaud Centennial in Barcelona The Berklee graduate and faculty member will debut her choral symphony with...
31/05/2026
Back to All News
Netflix Wins 15 Awards at the Canadian Screen Awards - See Pho...
31/05/2026
Taiwan is home to more than 500 NVIDIA ecosystem partners. More than 1 million N...
31/05/2026
As factories move from isolated automation to plant-wide intelligence, manufacturers need AI systems that can connect live machine signals, quality systems, wor...
31/05/2026
The NVIDIA AI Cloud ecosystem is accelerating the global buildout of AI factory infrastructure. Partners are expanding capacity to meet growing demand from ente...
30/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
30/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
30/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
30/05/2026
Zero in on one that says yes (and no)
Andy Marken May 29, 2026
0 Comments
Hero image courtesy of Deposit Photos
For content creators the most difficu...
29/05/2026
With InfoComm 2026 just weeks away, NDI is giving attendees plenty of reasons to...
29/05/2026
Reaffirming a partnership that has defined Canadian sports broadcasting since 19...
29/05/2026
Mobile/tablet is No. 2 device for watching TV, suggesting that the sports-production industry needs to take another look at the format
Ring Digital's Sprin...
29/05/2026
Berliner Ensemble, one of Berlin's five major theater companies, has expande...
29/05/2026
Solid State Logic will showcase its new compact, fly-away TCA Tour audio product...
29/05/2026
Gerald (Jerry) Pierce, a pioneering technologist who helped shape the digital transformation of the motion picture industry, passed away last month on April 12 ...
29/05/2026
Paramount+ will be the English-language U.S. home for Barclays Women's Super...
29/05/2026
Further strengthening its virtualisation strategy to fully support broadcasters ...
29/05/2026
Swiss broadcaster Canal Alpha has deployed Harmonic's award-winning, software-based XOS Advanced Media Processor to modernize playout operations across cant...
29/05/2026
PTZOptics will showcase a new generation of intelligent video workflows at InfoComm 2026, June 17-19, Las Vegas. Visitors to booth N8227 will see how PTZOptics ...
29/05/2026
Arizona's Family has launched the Arizona's Family Sports (AZFS) streaming app, a new direct-to-consumer destination for live, local sports. The app is ...
29/05/2026
Starting in 2027, DAZN will be the exclusive home of The Canadian Football Leagu...
29/05/2026
Comcast Business has detailed the advanced network infrastructure it has deploye...
29/05/2026
In two-day event, leaders from academia and industry explored solutions to chall...
29/05/2026
The Basketball Tournament (TBT), now entering their 13th year of competition, ha...
29/05/2026
Roku has launched FOX One as a Premium Subscription on The Roku Channel in the U.S. Roku customers can now subscribe to FOX One using their Roku account for liv...
Nanoparticle vaccine for COVID-19 spurs robust immune response in preclinical tests The novel vaccine technology, developed at Scripps Research, uses virus-like protein nanoparticles to elicit high levels of protective antibodies.
