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Polymer 'bristles' could help repel proteins—and germs—from surfaces in medical settings

Phys · · 770 words · By Tyler Irving
Public Health Safety Material Science Medical Innovation

Researchers at the University of Toronto Engineering have developed a non-toxic, 'liquidlike' polymer coating using polydimethylsiloxane (PDMS) that repels proteins. The team aims to apply this technology to medical settings to reduce hospital-acquired infections and provide a safer alternative to harsh chemical disinfectants.

open_in_new Read the original article: https://phys.org/news/2026-05-polymer-bristles-repel-proteins-germs.html

analyticsAnalysis

10%
Propaganda Score
confidence: 95%
Low risk. This article shows minimal use of propaganda techniques.

psychologyDetected Techniques

warning
Loaded Language 70% confidence
Using words with strong emotional connotations to influence an audience.

fact_checkFact-Check Results

10 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

check_circle Corroborated 4
verified Verified By Reference 2
info Single Source 2
verified Verified 1
help Insufficient Evidence 1
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“A non-toxic coating developed by researchers at University of Toronto Engineering prevents proteins from sticking to surfaces”
CORROBORATED
Multiple web search results describe the development of polymer 'bristles' (PDMS) by a team (implied to be Golovin's at UofT) to repel proteins and germs.
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wikipedia NEUTRAL — The University of Toronto (U of T) is a public research university with three campuses in the Greater Toronto Area of Ontario, Canada. Based on the grounds that surround Queen's Park in Toronto, it wa…
https://en.wikipedia.org/wiki/University_of_Toronto
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wikipedia NEUTRAL — The University of Toronto Faculty of Applied Science and Engineering is the engineering school of the University of Toronto, a public research university in Ontario, Canada. It was founded in 1873 and…
https://en.wikipedia.org/wiki/University_of_Toronto_Faculty_…
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wikipedia NEUTRAL — The University of Toronto Faculty of Medicine, officially the Temerty Faculty of Medicine, is the medical school of the University of Toronto in the Greater Toronto Area of Ontario, Canada. Founded in…
https://en.wikipedia.org/wiki/University_of_Toronto_Faculty_…
+ 3 more evidence sources
verified
“Professor Kevin Golovin heads the Durable Repellent Engineered Advanced Materials (DREAM) Laboratory at University of Toronto Engineering”
VERIFIED
Web search results explicitly identify Professor Kevin Golovin as an Assistant Professor at the University of Toronto and the head of the DREAM Laboratory.
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web search NEUTRAL — The DREAM Laboratory tackles challenges in sustainability, energy, and engineering through materials innovation. Key material technologies include: Ice repellent surfaces.April 22, 2025. DSC_1300 copy…
https://golovin.mie.utoronto.ca/
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web search NEUTRAL — Kevin Golovin is an Assistant Professor in the Department of Mechanical & Industrial Engineering at the University of Toronto. Golovin holds a Bachelor’s from Cornell University and a PhD from the Uni…
https://pubs.rsc.org/en/content/articlehtml/2023/mh/d3mh9005…
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web search NEUTRAL — Kevin will present some of his work on Feb 8th, 2026, in Savannah during the Adhesion Society Annual Conference. Congratulations to Professor Golovin for this well-deserved achievement!
https://www.linkedin.com/posts/the-adhesion-society-03681715…
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“Their latest work, published in the Chemical Engineering Journal, focuses on preventing infectious bacteria from gaining a foothold”
CORROBORATED
The DREAM Laboratory publications list mentions the Chemical Engineering Journal, and related articles discuss the use of PDMS to repel proteins/germs.
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wikipedia NEUTRAL — Ice is water that is frozen into a solid state, typically forming at or below temperatures of 0 °C, 32 °F, or 273.15 K. It occurs naturally on Earth, on other planets, in Oort cloud objects, and as in…
https://en.wikipedia.org/wiki/Ice
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wikipedia NEUTRAL — Venus is the second planet from the Sun. Similar in size and mass to Earth, Venus has no liquid water, and its atmosphere is far thicker and denser than that of any other rocky body in the Solar Syste…
https://en.wikipedia.org/wiki/Venus
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wikipedia NEUTRAL — Zinc is a chemical element; it has symbol Zn and atomic number 30. It is a slightly brittle metal at room temperature and has a shiny blue whitish appearance when surface oxidation is removed. It is t…
https://en.wikipedia.org/wiki/Zinc
+ 3 more evidence sources
verified
“polydimethylsiloxane (PDMS), a type of silicone polymer that is flexible, transparent and most importantly, biocompatible”
VERIFIED BY REFERENCE
Wikipedia and multiple scientific sources confirm PDMS is a flexible, transparent, and biocompatible silicone polymer.
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web search NEUTRAL — Polydimethylsiloxane, also known as dimethylpolysiloxane or dimethicone, is a silicone polymer with a wide variety of uses, from cosmetics to industrial lubrication and passive daytime radiative cooli…
https://en.wikipedia.org/wiki/Polydimethylsiloxane
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web search NEUTRAL — One of the molecules the team has worked with extensively is polydimethylsiloxane (PDMS), a type of silicone polymer that is flexible, transparent and most importantly, biocompatible. It's already wid…
https://phys.org/news/2026-05-polymer-bristles-repel-protein…
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web search NEUTRAL — Polydimethylsiloxane (PDMS) is a transparent, biocompatible, flexible, simple processing, chemically and thermally stable polymer that has been attracting attention due to its wide range of applicatio…
https://www.researchgate.net/publication/358833659_Mechanica…
verified
“It's [PDMS] already widely used in medical applications, from contact lenses to breast implants”
VERIFIED BY REFERENCE
Wikipedia and other sources explicitly state PDMS is used in contact lenses and medical implants.
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web search NEUTRAL — The applications of PDMS range from contact lenses and medical devices to elastomers; it is also present in shampoos (as it makes hair shiny and slippery), food (antifoaming agent), caulk, lubricants …
https://en.wikipedia.org/wiki/Polydimethylsiloxane
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web search NEUTRAL — It’s already widely used in medical applications, from contact lenses to breast implants.Given that exposure to high levels of PFAS chemicals has been linked to health effects such as cancer, PDMS bri…
https://news.engineering.utoronto.ca/polymer-bristles-could-…
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web search NEUTRAL — Medical and Biomedical Applications. PDMS is biocompatible, meaning the body generally tolerates it without a strong immune reaction. This property has made it a go-to material for implantable medical…
https://scienceinsights.org/what-is-pdms-properties-uses-and…
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“One way to use PDMS is to cross-link the polymer chains together into a bulk solid, which is the common material known as silicone rubber”
SINGLE SOURCE
The provided evidence for this specific claim consists of irrelevant search results about a TV show called 'Cross'. No scientific evidence was provided in the search results to confirm the cross-linking process described in the claim.
travel_explore
web search NEUTRAL — Cross is an American crime thriller television series created by Ben Watkins, based on the Alex Cross novel series written by James Patterson. It stars Aldis Hodge, Isaiah Mustafa, and Juanita Jenning…
https://en.m.wikipedia.org/wiki/Cross_(American_TV_series)
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web search NEUTRAL — Cross: Created by Ben Watkins. With Aldis Hodge, Isaiah Mustafa, Alona Tal, Juanita Jennings. Series adaptation of James Patterson novels about the complicated and brilliant detective, Alex Cross.
https://m.imdb.com/title/tt11794812
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web search NEUTRAL — The Mt. Davidson Memorial Cross is one of the oldest landmarks in San Francisco and stands as a memorial to the 1.5 million victims of the Armenian Genocide of 1915.
https://www.mountdavidsoncross.org/
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“the team used bovine serum albumin (BSA), a protein derived from cow's blood, to serve as a proxy for bacterial proteins”
CORROBORATED
Wikipedia confirms BSA is a protein derived from cows, and the specific research article mentions the team used BSA as a proxy for bacterial proteins.
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web search NEUTRAL — The Bovine Serum Albumin Standard. The ideal protein standard for protein quantification measurements is a purified sample of the protein you’ll be assaying in your unknown samples. However, that may …
https://info.gbiosciences.com/blog/why-is-bovine-serum-the-p…
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web search NEUTRAL — Bovine serum albumin (BSA or "Fraction V") is a serum albumin protein derived from cows. It is often used as a protein concentration standard in lab experiments.
https://en.wikipedia.org/wiki/Bovine_serum_albumin
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web search NEUTRAL — To test their surface, the team used bovine serum albumen (BSA), a protein derived from cow’s blood, to serve as a proxy for bacterial proteins. They placed droplets of BSA dissolved in salt water on …
https://news.engineering.utoronto.ca/polymer-bristles-could-…
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“In the team's tests, the PDMS bristles resisted protein adhesion even better than polyfluoroalkyl substances (PFAS)”
CORROBORATED
Two separate web search snippets for the same story confirm that the PDMS bristles resisted protein adhesion better than PFAS.
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web search NEUTRAL — You could also wash it off with plain water, rather than harsh chemicals like bleach." In the team's tests, the PDMS bristles resisted protein adhesion even better than polyfluoroalkyl substances (PFA…
https://phys.org/news/2026-05-polymer-bristles-repel-protein…
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web search NEUTRAL — The PDMS chains’ mobility prevents proteins from establishing stable contact, causing them to detach easily. When bovine serum albumen (BSA)—a proxy for bacterial proteins—was tested, protein residues…
https://bioengineer.org/polymer-bristles-offer-new-way-to-re…
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web search NEUTRAL — Germany, the Netherlands, Denmark, Norway and Sweden have proposed a REACH restriction to address the risks to the environment and human health from the manu...
https://www.youtube.com/watch?v=JzZRtmaJeoQ
help
“exposure to high levels of PFAS chemicals has been linked to health effects such as cancer”
INSUFFICIENT EVIDENCE
No evidence was provided in the search results specifically addressing the link between PFAS and cancer, although it is mentioned in the text of one article snippet. However, no independent verification source was provided in the evidence list.
info
“Mehdi Sadeghi et al, Liquidlike polydimethylsiloxane polymer brushes spontaneously delaminate drying protein-laden droplets, Chemical Engineering Journal (2026). DOI: 10.1016/j.cej.2026.173417”
SINGLE SOURCE
While the paper title and DOI are provided in the claim, the provided evidence (Wikipedia lists of Iranian scientists) does not confirm the existence or publication of this specific paper. The claim itself acts as the primary source.
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wikipedia NEUTRAL — The University of Tehran (UT) or Tehran University (Persian: دانشگاه تهران, Dâneshgâh-e Tehrân) is a public collegiate university in Iran, and the oldest and most prominent Iranian university located …
https://en.wikipedia.org/wiki/University_of_Tehran
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wikipedia NEUTRAL — The following is a list of notable Iranian scholars, scientists and engineers around the world from the contemporary period. For pre-modern era, see List of pre-modern Iranian scientists and scholars.…
https://en.wikipedia.org/wiki/List_of_contemporary_Iranian_s…
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wikipedia NEUTRAL — The University of Tabriz (Persian: دانشگاه تبريز, Dāneshgāh-e Tabriz) is a public university located in Tabriz, East Azerbaijan province, Iran. It is one of the top five high-ranked universities in Ir…
https://en.wikipedia.org/wiki/University_of_Tabriz
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.