Skip to main content
The Globe and Mail
Support Quality Journalism.
The Globe and Mail
First Access to Latest
Investment News
Collection of curated
e-books and guides
Inform your decisions via
Globe Investor Tools
Just$1.99
per week
for first 24 weeks

Enjoy unlimited digital access
Cancel Anytime
Enjoy Unlimited Digital Access
Get full access to globeandmail.com
Just $1.99per week for the first 24weeks
Just $1.99per week for the first 24weeks
var select={root:".js-sub-pencil",control:".js-sub-pencil-control",open:"o-sub-pencil--open",closed:"o-sub-pencil--closed"},dom={},allowExpand=!0;function pencilInit(o){var e=arguments.length>1&&void 0!==arguments[1]&&arguments[1];select.root=o,dom.root=document.querySelector(select.root),dom.root&&(dom.control=document.querySelector(select.control),dom.control.addEventListener("click",onToggleClicked),setPanelState(e),window.addEventListener("scroll",onWindowScroll),dom.root.removeAttribute("hidden"))}function isPanelOpen(){return dom.root.classList.contains(select.open)}function setPanelState(o){dom.root.classList[o?"add":"remove"](select.open),dom.root.classList[o?"remove":"add"](select.closed),dom.control.setAttribute("aria-expanded",o)}function onToggleClicked(){var l=!isPanelOpen();setPanelState(l)}function onWindowScroll(){window.requestAnimationFrame(function() {var l=isPanelOpen(),n=0===(document.body.scrollTop||document.documentElement.scrollTop);n||l||!allowExpand?n&&l&&(allowExpand=!0,setPanelState(!1)):(allowExpand=!1,setPanelState(!0))});}pencilInit(".js-sub-pencil",!1); // via darwin-bg var slideIndex = 0; carousel(); function carousel() { var i; var x = document.getElementsByClassName("subs_valueprop"); for (i = 0; i < x.length; i++) { x[i].style.display = "none"; } slideIndex++; if (slideIndex> x.length) { slideIndex = 1; } x[slideIndex - 1].style.display = "block"; setTimeout(carousel, 2500); } //

A man demonstrates how to spray MAP-1, an antimicrobial coating that a team of university researchers claimed to be effective in killing viruses, bacteria and spores, at a bedspace apartment in Hong Kong, China, on April 21, 2020.

YOYO CHOW/Reuters

Researchers at a Hong Kong university say they have developed an antiviral coating which could provide 90 days of “significant” protection against bacteria and viruses such as the one causing COVID-19.

The coating, called MAP-1, took 10 years to develop and can be sprayed on surfaces that are frequently used by the public, such as elevator buttons and handrails, researchers at the Hong Kong University of Science and Technology (HKUST) say.

“These places are frequently touched, and, at the same time, serve as a very effective medium for transmission of diseases,” said HKUST Adjunct Professor Joseph Kwan, one of the chief researchers in the team that developed the product.

Story continues below advertisement

The coating that forms after spraying has millions of nano-capsules containing disinfectants, which Kwan says remain effective in killing bacteria, viruses and spores even after the coating has dried.

Unlike common disinfecting methods such as diluted bleach and alcohol, MAP-1 is further boosted by heat-sensitive polymers that encapsulate and release disinfectants upon human contact, Kwan said.

It is non-toxic and safe for skin and the environment, the researchers say.

Following clinical tests this year at a Hong Kong hospital and a home for the elderly, the coating has been made available for commercial purchase by Germagic, a unit of the university’s industrial partner, Chiaphua Industries Ltd.

The coating was approved for official and mass consumer use in February, and will hit Hong Kong stores next month.

With help from a local charity, the non-toxic coating has already been sprayed around the homes of more than a thousand low-income families in the city.

“I feel like it has strengthened our protection against the virus,” said Law Ha-yu, a mother of two who lives in a 110-square-foot subdivided unit that was recently sprayed with the coating.

Story continues below advertisement

The researchers said shopping malls, schools and sport training facilities in the city have adopted the coating.

Applying the coating at schools costs HK$20,000 ($2,600) to HK$50,000, depending on the size of the sprayed area. The company also plans to introduce 50ml and 200ml domestic use versions with prices ranging from HK$70-250.

Hong Kong reported no new coronavirus cases on Sunday, keeping the total at 1,038 infections and four deaths.

Our Morning Update and Evening Update newsletters are written by Globe editors, giving you a concise summary of the day’s most important headlines. Sign up today.

Your Globe

Build your personal news feed

  1. Follow topics and authors relevant to your reading interests.
  2. Check your Following feed daily, and never miss an article. Access your Following feed from your account menu at the top right corner of every page.

Follow topics related to this article:

View more suggestions in Following Read more about following topics and authors
Report an error
Due to technical reasons, we have temporarily removed commenting from our articles. We hope to have this fixed soon. Thank you for your patience. If you are looking to give feedback on our new site, please send it along to feedback@globeandmail.com. If you want to write a letter to the editor, please forward to letters@globeandmail.com.

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff. Non-subscribers can read and sort comments but will not be able to engage with them in any way. Click here to subscribe.

If you would like to write a letter to the editor, please forward it to letters@globeandmail.com. Readers can also interact with The Globe on Facebook and Twitter .

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff. Non-subscribers can read and sort comments but will not be able to engage with them in any way. Click here to subscribe.

If you would like to write a letter to the editor, please forward it to letters@globeandmail.com. Readers can also interact with The Globe on Facebook and Twitter .

Welcome to The Globe and Mail’s comment community. This is a space where subscribers can engage with each other and Globe staff.

We aim to create a safe and valuable space for discussion and debate. That means:

  • Treat others as you wish to be treated
  • Criticize ideas, not people
  • Stay on topic
  • Avoid the use of toxic and offensive language
  • Flag bad behaviour

If you do not see your comment posted immediately, it is being reviewed by the moderation team and may appear shortly, generally within an hour.

We aim to have all comments reviewed in a timely manner.

Comments that violate our community guidelines will not be posted.

UPDATED: Read our community guidelines here

Discussion loading ...

To view this site properly, enable cookies in your browser. Read our privacy policy to learn more.
How to enable cookies