Unveiling biological activities of biosynthesized starch/silver-selenium nanocomposite using Cladosporium cladosporioides CBS 174.62

© 2024. The Author(s)..

BACKGROUND AND OBJECTIVES: Microbial cells capability to tolerate the effect of various antimicrobial classes represent a major worldwide health concern. The flexible and multi-components nanocomposites have enhanced physicochemical characters with several improved properties. Thus, different biological activities of biosynthesized starch/silver-selenium nanocomposite (St/Ag-Se NC) were assessed.

METHODOLOGY: The St/Ag-Se NC was biosynthesized using Cladosporium cladosporioides CBS 174.62 (C. cladosporioides) strain. The shape and average particle size were investigated using scanning electron microscope (SEM) and high-resolution transmission electron microscope (HR-TEM), respectively. On the other hand, the St/Ag-Se NC effect on two cancer cell lines and red blood cells (RBCs) was evaluated and its hydrogen peroxide (H2O2) scavenging effect was assessed. Moreover, its effects on various microbial species in both planktonic and biofilm growth forms were examined.

RESULTS: The St/Ag-Se NC was successfully biosynthesized with oval and spherical shape and a mean particle diameter of 67.87 nm as confirmed by the HR-TEM analysis. St/Ag-Se NC showed promising anticancer activity toward human colorectal carcinoma (HCT-116) and human breast cancer (MCF-7) cell lines where IC50 were 21.37 and 19.98 µg/ml, respectively. Similarly, little effect on RBCs was observed with low nanocomposite concentration. As well, the highest nanocomposite H2O2 scavenging activity (42.84%) was recorded at a concentration of 2 mg/ml. Additionally, Staphylococcus epidermidis (S. epidermidis) ATCC 12,228 and Candida albicans (C. albicans) ATCC 10,231 were the highly affected bacterial and fungal strains with minimum inhibitory concentrations (MICs) of 18.75 and 50 µg/ml, respectively. Moreover, the noticeable effect of St/Ag-Se NC on microbial biofilm was concentration dependent. A high biofilm suppression percentage, 87.5% and 68.05%, were recorded with S. epidermidis and Staphylococcus aureus (S. aureus) when exposed to 1 mg/ml and 0.5 mg/ml, respectively.

CONCLUSION: The biosynthesized St/Ag-Se NC showed excellent antioxidant activity, haemocompatibility, and anti-proliferative effect at low concentrations. Also, it exhibited promising antimicrobial and antibiofilm activities.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:24

Enthalten in:

BMC microbiology - 24(2024), 1 vom: 08. März, Seite 78

Sprache:

Englisch

Beteiligte Personen:

Elkady, Fathy M [VerfasserIn]
Hashem, Amr H [VerfasserIn]
Salem, Salem S [VerfasserIn]
El-Sayyad, Gharieb S [VerfasserIn]
Tawab, Ahmed Abdel [VerfasserIn]
Alkherkhisy, Mohammad M [VerfasserIn]
Abdulrahman, Mohammed S [VerfasserIn]

Links:

Volltext

Themen:

3M4G523W1G
9005-25-8
And Antibiofilm
Anti-Bacterial Agents
Anti-Infective Agents
BBX060AN9V
Biological synthesis
H6241UJ22B
Hemolytic activity
Hydrogen Peroxide
Journal Article
MBC
MIC
Selenium
Silver
Starch
Starch/silver-selenium nanocomposite

Anmerkungen:

Date Completed 11.03.2024

Date Revised 12.03.2024

published: Electronic

Citation Status MEDLINE

doi:

10.1186/s12866-024-03228-1

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369492358