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The use of exhaled nitric oxide and peak expiratory flow to demonstrate improved breathability and antimicrobial properties of novel face mask made with sustainable filter paper and Folium Plectranthii amboinicii oil: additional option for mask shortage during COVID-19 pandemic.
Duong-Quy, Sy; Ngo-Minh, Xuan; Tang-Le-Quynh, Trinh; Tang-Thi-Thao, Tram; Nguyen-Quoc, Bao; Le-Quang, Khiet; Tran-Thanh, Dinh; Doan-Thi-Quynh, Nhu; Canty, Ethan; Do, Toan; Craig, Timothy.
  • Duong-Quy S; Medical-Biological Research Center, Lamdong Medical College, Da Lat city, Vietnam.
  • Ngo-Minh X; Division of Immuno-Allergology, Hershey Medical Center, Penn State Medical College, Hershey, PA, USA.
  • Tang-Le-Quynh T; Pham Ngoc Thach Medical University, Ho Chi Minh city, Vietnam Co-first author.
  • Tang-Thi-Thao T; Pham Ngoc Thach Medical University, Ho Chi Minh city, Vietnam Co-first author.
  • Nguyen-Quoc B; Medical-Biological Research Center, Lamdong Medical College, Da Lat city, Vietnam.
  • Le-Quang K; Medical-Biological Research Center, Lamdong Medical College, Da Lat city, Vietnam.
  • Tran-Thanh D; Medical-Biological Research Center, Lamdong Medical College, Da Lat city, Vietnam.
  • Doan-Thi-Quynh N; Medical-Biological Research Center, Lamdong Medical College, Da Lat city, Vietnam.
  • Canty E; Medical-Biological Research Center, Lamdong Medical College, Da Lat city, Vietnam.
  • Do T; Medical-Biological Research Center, Lamdong Medical College, Da Lat city, Vietnam.
  • Craig T; Division of Immuno-Allergology, Hershey Medical Center, Penn State Medical College, Hershey, PA, USA.
Multidiscip Respir Med ; 15(1): 664, 2020 Jan 28.
Article in English | MEDLINE | ID: covidwho-1088995
Semantic information from SemMedBD (by NLM)
1. peak flow COEXISTS_WITH COVID-19
Subject
peak flow
Predicate
COEXISTS_WITH
Object
COVID-19
2. Breath LOCATION_OF nitric oxide
Subject
Breath
Predicate
LOCATION_OF
Object
nitric oxide
3. Masks USES College
Subject
Masks
Predicate
USES
Object
College
4. Masks compared_with Masks
Subject
Masks
Predicate
compared_with
Object
Masks
5. peak flow COEXISTS_WITH COVID-19
Subject
peak flow
Predicate
COEXISTS_WITH
Object
COVID-19
6. Breath LOCATION_OF nitric oxide
Subject
Breath
Predicate
LOCATION_OF
Object
nitric oxide
7. Masks USES College
Subject
Masks
Predicate
USES
Object
College
8. Masks compared_with Masks
Subject
Masks
Predicate
compared_with
Object
Masks
ABSTRACT

BACKGROUND:

Medical face masks are integral personal protective equipment against infectious airborne disease and become scarce during epidemic outbreaks such as COVID-19. A novel, sustainably manufactured face mask with antimicrobial and anti-inflammatory properties from oil of Folium Plectranthii amboinicii can be an effective alternative to internationally sold masks.

METHODS:

This prospective, randomized study assigned subjects (n=67) to either conventional surgical face mask or Lamdong Medical College (LMC) face mask for three hours. Fractional concentration of nitric oxide in exhaled breath (FENO) and peak expiratory flow (PEF) was measured before and after mask use. Subjective reporting on respiratory symptoms was also analyzed. Masks were then incubated and analyzed for microorganism growth.

RESULTS:

Subjects assigned the LMC mask had a lowered FENO (p<0.05) compared to conventional face masks after mask wearing. Subjects with LMC mask use reported higher comfortability (p<0.05), breathability (p<0.05), and lower allergy symptoms (p<0.05). The LMC mask has visually less microorganism growth in the cultured medium, measured by sterile ring radius.

CONCLUSIONS:

The LMC face mask is a renewably manufactured personal protective tool with antibacterial capacity that can serve as an effective alternative to internationally sold surgical face mask during shortage of mask due to COVID-19.
Keywords

Full text: Available Collection: International databases Database: MEDLINE Type of study: Experimental Studies / Observational study / Prognostic study / Randomized controlled trials Language: English Journal: Multidiscip Respir Med Year: 2020 Document Type: Article Affiliation country: Mrm.2020.664

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Full text: Available Collection: International databases Database: MEDLINE Type of study: Experimental Studies / Observational study / Prognostic study / Randomized controlled trials Language: English Journal: Multidiscip Respir Med Year: 2020 Document Type: Article Affiliation country: Mrm.2020.664