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| Autores principales: | , , , , , , , , , , , |
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| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
RSC advances
2026
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| Acceso en línea: | https://pubmed.ncbi.nlm.nih.gov/41641235/ |
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| _version_ | 1868266090043277315 |
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| author | Al-Sharqi, Anes A Eissa, Mohamed E Alyousfi, Dareen Alharbi, Ahmed Eid Ibrahim, Ibrahim M Abdelkhalig, Sozan M Albaqami, Faisal Miqad K Eldesoky, Ahmed M Sherbini, Ahmad A Yousef, Tarek A Goda, Mohamed N Ghareeb, Ahmed |
| author_facet | Al-Sharqi, Anes A Eissa, Mohamed E Alyousfi, Dareen Alharbi, Ahmed Eid Ibrahim, Ibrahim M Abdelkhalig, Sozan M Albaqami, Faisal Miqad K Eldesoky, Ahmed M Sherbini, Ahmad A Yousef, Tarek A Goda, Mohamed N Ghareeb, Ahmed Al-Sharqi, Anes A Eissa, Mohamed E Alyousfi, Dareen Alharbi, Ahmed Eid Ibrahim, Ibrahim M Abdelkhalig, Sozan M Albaqami, Faisal Miqad K Eldesoky, Ahmed M Sherbini, Ahmad A Yousef, Tarek A Goda, Mohamed N Ghareeb, Ahmed |
| collection | PubMed - marine biology |
| contents | Multifunctional Se-Cu bimetallic nanoparticles from marine : targeting oxidative stress, inflammation, and microbial biofilms. Al-Sharqi, Anes A Eissa, Mohamed E Alyousfi, Dareen Alharbi, Ahmed Eid Ibrahim, Ibrahim M Abdelkhalig, Sozan M Albaqami, Faisal Miqad K Eldesoky, Ahmed M Sherbini, Ahmad A Yousef, Tarek A Goda, Mohamed N Ghareeb, Ahmed Selenium-copper bimetallic nanoparticles (Se-Cu BMNPs) were synthesized using metabolic extracts from the marine bacterium LHG166 isolated from the Red Sea. UV-Vis spectroscopy showed maximum absorption at 208 nm. FT-IR analysis revealed bacterial proteins and polysaccharides from the bacterial extract as reducing and capping agents, showing an Amide I shift to 1646.28 cm and new Cu-O/Se-O stretching at 470.34 cm. XRD patterns confirmed the presence of both orthorhombic and cubic phases of CuSe, with an average crystallite size of 27.2 nm. TEM showed spherical morphologies of 20-120 nm diameter. EDX confirmed Cu : Se atomic ratio near 1 : 1 (7.1 at% Cu, 7.5 at% Se). DLS measured the hydrodynamic diameter of 84 nm (PDI 0.26) with a zeta potential of -24.11 mV. Antioxidant testing showed DPPH scavenging up to 96.1% at maximum concentration with an IC of 4.1 µg mL ascorbic acid's 3.1 µg mL, and ABTS scavenging reached 94.6% with an IC of 10.73 µg mL compared to 2.55 µg mL for ascorbic acid. Anti-inflammatory assessment demonstrated COX-1 inhibition up to 97.3% (IC = 7.05 µg mL) and COX-2 inhibition reaching 95.3% (IC = 12.11 µg mL) celecoxib's IC values of 5.93 and 4.51 µg mL, respectively. Antimicrobial screening agar well diffusion showed inhibition zones of 28 mm for , 24 mm for , and 27 mm for . Broth microdilution revealed MIC values ranging from 15.62 µg mL (, , ) to 125 µg mL (), with MBC/MFC values between 15.62-250 µg mL, yielding ratios of 1.0-4.0, indicating bactericidal activity. Gram-negative bacteria required 31.25-62.5 µg mL for inhibition and 62.5-125 µg mL for complete killing, while showed complete resistance. Biofilm inhibition through microtitre plate assays demonstrated concentration-dependent effects, with 75% MBC achieving over 90% inhibition for most organisms ( 96.09%, 93.76%, 91.59%), though required higher concentrations (84.33% at 75% MBC). These results demonstrated that marine bacterial metabolites produce biocompatible Se-Cu BMNPs with potent antioxidant, anti-inflammatory, antimicrobial, and antibiofilm properties suitable for biomedical applications. |
| format | Artículo científico |
| id | pubmed_41641235 |
| institution | PubMed |
| language | en |
| publishDate | 2026 |
| publisher | RSC advances |
| record_format | pubmed |
| spellingShingle | Multifunctional Se-Cu bimetallic nanoparticles from marine : targeting oxidative stress, inflammation, and microbial biofilms. Al-Sharqi, Anes A Eissa, Mohamed E Alyousfi, Dareen Alharbi, Ahmed Eid Ibrahim, Ibrahim M Abdelkhalig, Sozan M Albaqami, Faisal Miqad K Eldesoky, Ahmed M Sherbini, Ahmad A Yousef, Tarek A Goda, Mohamed N Ghareeb, Ahmed Multifunctional Se-Cu bimetallic nanoparticles from marine : targeting oxidative stress, inflammation, and microbial biofilms. Al-Sharqi, Anes A Eissa, Mohamed E Alyousfi, Dareen Alharbi, Ahmed Eid Ibrahim, Ibrahim M Abdelkhalig, Sozan M Albaqami, Faisal Miqad K Eldesoky, Ahmed M Sherbini, Ahmad A Yousef, Tarek A Goda, Mohamed N Ghareeb, Ahmed Selenium-copper bimetallic nanoparticles (Se-Cu BMNPs) were synthesized using metabolic extracts from the marine bacterium LHG166 isolated from the Red Sea. UV-Vis spectroscopy showed maximum absorption at 208 nm. FT-IR analysis revealed bacterial proteins and polysaccharides from the bacterial extract as reducing and capping agents, showing an Amide I shift to 1646.28 cm and new Cu-O/Se-O stretching at 470.34 cm. XRD patterns confirmed the presence of both orthorhombic and cubic phases of CuSe, with an average crystallite size of 27.2 nm. TEM showed spherical morphologies of 20-120 nm diameter. EDX confirmed Cu : Se atomic ratio near 1 : 1 (7.1 at% Cu, 7.5 at% Se). DLS measured the hydrodynamic diameter of 84 nm (PDI 0.26) with a zeta potential of -24.11 mV. Antioxidant testing showed DPPH scavenging up to 96.1% at maximum concentration with an IC of 4.1 µg mL ascorbic acid's 3.1 µg mL, and ABTS scavenging reached 94.6% with an IC of 10.73 µg mL compared to 2.55 µg mL for ascorbic acid. Anti-inflammatory assessment demonstrated COX-1 inhibition up to 97.3% (IC = 7.05 µg mL) and COX-2 inhibition reaching 95.3% (IC = 12.11 µg mL) celecoxib's IC values of 5.93 and 4.51 µg mL, respectively. Antimicrobial screening agar well diffusion showed inhibition zones of 28 mm for , 24 mm for , and 27 mm for . Broth microdilution revealed MIC values ranging from 15.62 µg mL (, , ) to 125 µg mL (), with MBC/MFC values between 15.62-250 µg mL, yielding ratios of 1.0-4.0, indicating bactericidal activity. Gram-negative bacteria required 31.25-62.5 µg mL for inhibition and 62.5-125 µg mL for complete killing, while showed complete resistance. Biofilm inhibition through microtitre plate assays demonstrated concentration-dependent effects, with 75% MBC achieving over 90% inhibition for most organisms ( 96.09%, 93.76%, 91.59%), though required higher concentrations (84.33% at 75% MBC). These results demonstrated that marine bacterial metabolites produce biocompatible Se-Cu BMNPs with potent antioxidant, anti-inflammatory, antimicrobial, and antibiofilm properties suitable for biomedical applications. |
| title | Multifunctional Se-Cu bimetallic nanoparticles from marine : targeting oxidative stress, inflammation, and microbial biofilms. |
| url | https://pubmed.ncbi.nlm.nih.gov/41641235/ |