Evidence map›Paper›PMID 33922136›Full record

ArticlePolymers2021

Copper-Coated Polypropylene Filter Face Mask with SARS-CoV-2 Antiviral Ability.

Sunghoon Jung, Jun-Yeoung Yang, Eun-Yeon Byeon, Do-Geun Kim, Da-Gyum Lee, Sungweon Ryoo, Sanggu Lee, Cheol-Woong Shin, Ho Won Jang, Hyo Jung Kim and 1 more

Open access · goldAbstract read
In one paragraph

Article in Polymers, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
12.3field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

37 citing papers in PubMed, 94 citations in OpenAlex.

  1. Review
  2. Robust, conformal CuNanoscale advances · 2026
    Article
  3. Article
  4. Engineering copper and copper-based materials for a post-antibiotic era.Frontiers in bioengineering and biotechnology · 2025
    Review
  5. Article
  6. Green Synthesized Polymeric Iodophors with Thyme as Antimicrobial Agents.International journal of molecular sciences · 2024
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Passive antifouling and active self-disinfecting antiviral surfaces.Chemical engineering journal (Lausanne, Switzerland : 1996) · 2022
    Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 1 country.

Sunghoon JungDepartment of Nano-Bio Convergence, Korea Institute of Materials Science, 797 Changwondae-ro, Changwon 51508, Korea.
Jun-Yeoung YangDepartment of Nano-Bio Convergence, Korea Institute of Materials Science, 797 Changwondae-ro, Changwon 51508, Korea.ORCID 0000-0001-7751-4534
Eun-Yeon ByeonDepartment of Nano-Bio Convergence, Korea Institute of Materials Science, 797 Changwondae-ro, Changwon 51508, Korea.
Do-Geun KimDepartment of Nano-Bio Convergence, Korea Institute of Materials Science, 797 Changwondae-ro, Changwon 51508, Korea.
Da-Gyum LeeClinical Research Centre, Masan National Tuberculosis Hospital, 215 Gaporo, Masanhappo-gu, Changwon 51755, Korea.
Sungweon RyooClinical Research Centre, Masan National Tuberculosis Hospital, 215 Gaporo, Masanhappo-gu, Changwon 51755, Korea.ORCID 0000-0002-5085-0068
Sanggu LeeBuilding Energy Technology Center and Center for Climatic Environment Real-scale Testing, Korea Conformity Laboratories, 7 Jeongtong-ro Deoksan-myeon, Jincheon-gun, Chungcheongbuk-do 27872, Korea.
Cheol-Woong ShinBuilding Energy Technology Center and Center for Climatic Environment Real-scale Testing, Korea Conformity Laboratories, 7 Jeongtong-ro Deoksan-myeon, Jincheon-gun, Chungcheongbuk-do 27872, Korea.
Ho Won JangDepartment of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul 08826, Korea.ORCID 0000-0002-6952-7359
Hyo Jung KimDepartment of Organic Material Science and Engineering, Pusan National University, Busan 609-755, Korea.
Seunghun LeeDepartment of Nano-Bio Convergence, Korea Institute of Materials Science, 797 Changwondae-ro, Changwon 51508, Korea.ORCID 0000-0002-1356-2331
Korea Institute of Materials Science · KRSeoul National University · KRMasan National Tuberculosis Hospital · KR

Funding

Korea institute of materials science PNK7400national research foundation of korea NRF-2020M2D8A1057902national research foundation of korea NRF-2020M3A9I4038665
6 · The paper itself

Abstract

Face masks will be used to prevent pandemic recurrence and outbreaks of mutant SARS-CoV-2 strains until mass immunity is confirmed. The polypropylene (PP) filter is a representative disposable mask material that traps virus-containing bioaerosols, preventing secondary transmission. In this study, a copper thin film (20 nm) was deposited via vacuum coating on a spunbond PP filter surrounding a KF94 face mask to provide additional protection and lower the risk of secondary transmission. Film adhesion was improved using oxygen ion beam pretreatment, resulting in cuprous oxide formation on the PP fiber without structural deformation. The copper-coated mask exhibited filtration efficiencies of 95.1 ± 1.32% and 91.6 ± 0.83% for NaCl and paraffin oil particles, respectively. SARS-CoV-2 inactivation was evaluated by transferring virus-containing media onto the copper-coated PP filters and subsequently adding Vero cells. Infection was verified using real-time polymerase chain reaction and immunochemical staining. Vero cells added after contact with the copper-coated mask did not express the RNA-dependent RNA polymerase and envelope genes of SARS-CoV-2. The SARS-CoV-2 nucleocapsid immunofluorescence results indicated a reduction in the amount of virus of more than 75%. Therefore, copper-coated antiviral PP filters could be key materials in personal protective equipment, as well as in air-conditioning systems.

Indexed as

antiviral activitycopper filmSARS-CoV-2

Identifiers

PMID33922136
PMCPMC8122733
OpenAlexW3152990935

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.