Development of spray-dried powder hand sanitiser with prolonged effectivity

© 2024. The Author(s)..

Since the outbreak of the COVID-19 pandemic, the use of hand sanitisers has become an inseparable part of our personal hygiene. However, the short-term effect and the need for frequent application are shortcomings that impair the overall protection. Another aspect is that repeated use of some products (typically alcohol-based) may cause skin irritation or eventually more severe health problems. This work proposes spray-drying as a suitable method for the preparation of swellable chitosan carriers, allowing for encapsulation and sustained release of antibacterial chlorhexidine digluconate as a model active substance. After application to hands, micron-sized particles preferentially accommodate space between epidermal ridges, protected against attrition. Thanks to their small size (d < 10 µm), particles are comfortable to carry since they are not recognisable by somatosensory receptors. The performance of formulations with various amounts of chlorhexidine and cross-linker was tested and compared with selected commercial disinfectants available on the Czech market (ethanol gel and alcoholic solution with chlorhexidine) against E. coli and S. epidermidis. The real-life performance was investigated with twelve volunteers performing various activities for up to 2 h. Finally, a replica of the human index finger with accurately captured micro-topology was proposed and compared with volunteers' fingers concerning the total amount of adhered and detached particles.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:14

Enthalten in:

Scientific reports - 14(2024), 1 vom: 28. Feb., Seite 4827

Sprache:

Englisch

Beteiligte Personen:

Večerková, Lucie [VerfasserIn]
Mašková, Lucie [VerfasserIn]
Knejzlík, Zdeněk [VerfasserIn]
Kašpar, Ondřej [VerfasserIn]
Tokárová, Viola [VerfasserIn]

Links:

Volltext

Themen:

3K9958V90M
Chlorhexidine
Ethanol
Hand Sanitizers
Journal Article
Powders
R4KO0DY52L

Anmerkungen:

Date Completed 29.02.2024

Date Revised 01.03.2024

published: Electronic

Citation Status MEDLINE

doi:

10.1038/s41598-024-55503-w

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369036360