Aim Of The Study: In this study, antibacterial and antibiofilm potential of sulphated polysaccharides (SPs) extracted from Chlamydomonas reinhardtii (Cr) was evaluated against Neisseria mucosa, Escherichia coli, Streptococcus sp. and Bacillus subtilis.
Methods And Results: Antibacterial potential of Cr-SPs was evaluated by agar-cup diffusion, time-kill and colony-forming ability (CFU), minimum inhibitory and bactericidal concentration assays. Antibiofilm potential was evaluated by biofilm inhibition, eradication, extracellular-DNA, metabolic activity and microscopy assays. Cr-SPs at 0·5 mg ml showed 34·52, 48·6, 66·1 and 55·6% reduced CFU in B. subtilis, Streptococcus, N. mucosa and E. coli respectively. Minimum inhibitory concentration of Cr-SPs was as low as 480 μg ml for Streptococcus, N. mucosa and 420 μg ml for B. subtilis and E. coli. At 1 mg ml , Cr-SPs showed 50% biofilm inhibition, whereas 4-8 mg ml showed 100% inhibition. Cr-SPs also effectively dissolved preformed biofilms. Dose-dependent reduction in extracellular DNA revealed that Cr-SPs interacts with the extra polymeric substance of the biofilm and destroys them. Light microscopy reconfirmed the above results.
Conclusion: Cr-SPs not only inhibited biofilm formation but also effectively dissolved preformed-biofilms.
Significance And Impact Of The Study: The current study showed the promising potential of Cr-SPs as antibiofilm agents. Further validation will help in developing Cr-SPs as natural antibiotics against biofilm-causing bacteria.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/jam.14364 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The role of biophysical properties in defining the functional applications of alkyl esters of L-ascorbic acid.
Biochem Biophys Res Commun
January 2025
Depto. de Química Biológica Ranwel Caputto. Facultad. Ciencias Químicas. Univ. Nacional de Córdoba, Argentina; Centro de Investigaciones en Química Biológica de Córdoba (CIQUIBIC) CONICET, Córdoba, Argentina. Electronic address:
Lipophilic derivatives of vitamin C, known as ascorbyl-6-O-alkanoates (ASCn), have been mainly developed for use in cosmetics, pharmaceuticals, and the food industry as antioxidant additives. These derivatives are of biotechnological interest due to their antioxidant properties, amphiphilic behavior, capacity to self-organize into nano- and micro-structures, anionic nature, and low cost of synthesis. In this review, we will focus on the commercial amphiphile, 6-O-palmitoyl L-ascorbic acid (ASC16), and the shorter acyl chains derivatives, such as 6-O-myristoyl (ASC14) and 6-O-lauroyl L-ascorbic acid (ASC12).
View Article and Find Full Text PDFCorrigendum to "The anti-biofilm potential of triterpenoids isolated from Sarcochlamys pulcherrima (Roxb.) Gaud" [Microbial. Pathogenes. 139 (2020) 103901].
Microb Pathog
January 2025
Department of Molecular Biology & Bioinformatics, Tripura University, Suryamaninagar, 799022, Tripura, India. Electronic address:
Synthesis of tetra-substituted thiophene derivatives as potential Hits combating antibiotic resistant bacteria ESKAPE.
Bioorg Chem
January 2025
Chemistry Department, Faculty of Science, Ain Shams University, Abbasia, 11566 Cairo, Egypt.
The escalating prevalence of antibiotic-resistant bacteria has led to a serious global public health problem; therefore, there is an urgent need for the development of structurally innovative antibacterial agents. In our study, different series of tetra-substituted thiophene derivatives were designed and synthesized by multi-component reactions (MCRs) in moderate to excellent yields. Some of the designed final compounds were synthesized by both microwave assisted method and traditional synthesis.
View Article and Find Full Text PDFPhoto-curing hyaluronic acid-Janus antibacterial packs as O generator precisely modulate the infectious microenvironment for antibiotic-free periodontal therapy.
Mater Today Bio
February 2025
School of Pharmaceutical Sciences, Sun Yat-Sen University, University Town, Guangzhou, 510006, China.
Periodontal disease stands the leading cause of tooth loss in adults. While scaling and root planning is considered the "gold standard" treatment, it is often insufficient in efficiently eliminating anaerobic bacteria from deep periodontal pockets. In this work, an antibiotic-free and photo-curing hyaluronic acid-Janus (H-Janus) antibacterial pack was developed to inhibit the growth and colonization of residual bacteria within the pockets for reducing the recurrence of periodontitis.
View Article and Find Full Text PDFMicrospheres based on galactomannan and Spondias purpurea L. extract to increase antifungal and antibiofilm efficacy against Candida spp.
Int J Biol Macromol
January 2025
Laboratory of Polymers and Materials Innovation, Department of Organic and Inorganic Chemistry, Sciences Center, Federal University of Ceará, Campus of Pici, Zip Code 60440-900 Fortaleza, CE, Brazil. Electronic address:
The ongoing problem of an increasing resistance of Candida spp. to available antifungals, has made it necessary the search for new therapeutic alternatives. The aim of this work was to develop a microsphere based on Caesalpinia ferrea galactomannan and Spondias purpurea L.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!