Please use this identifier to cite or link to this item: doi:10.22028/D291-34457
Title: How Do Polymer Coatings Affect the Growth and Bacterial Population of a Biofilm Formed by Total Human Salivary Bacteria?—A Study by 16S-RNA Sequencing
Author(s): Al-Ahmad, Ali
Wollensak, Kira
Rau, Sibylle
Guevara Solarte, Diana Lorena
Paschke, Stefan
Lienkamp, Karen
Staszewski, Ori
Language: English
Title: Microorganisms
Volume: 9
Issue: 7
Publisher/Platform: MDPI
Year of Publication: 2021
Free key words: implant-associated infections
polymer coating
16S RNA sequencing
antimicrobial surface modification
DDC notations: 500 Science
Publikation type: Journal Article
Abstract: Antimicrobial surface modifications are required to prevent biomaterial-associated biofilm infections, which are also a major concern for oral implants. The aim of this study was to evaluate the influence of three different coatings on the biofilm formed by human saliva. Biofilms grown from human saliva on three different bioactive poly(oxanorbornene)-based polymer coatings (the proteinrepellent PSB: poly(oxanorbornene)-based poly(sulfobetaine), the protein-repellent and antimicrobial PZI: poly(carboxyzwitterion), and the mildly antimicrobial and protein-adhesive SMAMP: synthetic mimics of antimicrobial peptides) were analyzed and compared with the microbial composition of saliva, biofilms grown on uncoated substrates, and biofilms grown in the presence of chlorhexidine digluconate. It was found that the polymer coatings significantly reduced the amount of adherent bacteria and strongly altered the microbial composition, as analyzed by 16S RNA sequencing. This may hold relevance for maintaining oral health and the outcome of oral implants due to the existing synergism between the host and the oral microbiome. Especially the reduction of some bacterial species that are associated with poor oral health such as Tannerella forsythia and Fusobacterium nucleatum (observed for PSB and SMAMP), and Prevotella denticola (observed for all coatings) may positively modulate the oral biofilm, including in situ.
DOI of the first publication: 10.3390/microorganisms9071427
Link to this record: urn:nbn:de:bsz:291--ds-344576
ISSN: 2076-2607
Date of registration: 3-Aug-2021
Description of the related object: Supplementary Material
Related object:
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Materialwissenschaft und Werkstofftechnik
Professorship: NT - Keiner Professur zugeordnet
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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