Article
Biotechnology & Applied Microbiology
Italo Jose Batista Durval, Hugo Morais Meira, Bruno Oliveira de Veras, Raquel Diniz Rufino, Attilio Converti, Leonie Asfora Sarubbo
Summary: This study successfully synthesized silver nanoparticles with antimicrobial potential using biosurfactant produced by Bacillus cereus UCP 1615 as a stabilizer. Characterization of the nanoparticles confirmed their formation, predominantly spherical structure, and an average size of about 20 nm. Antimicrobial tests showed significant inhibitory effects of the silver nanoparticles on the growth of Penicillium fellutanum and Aspergillus niger.
FERMENTATION-BASEL
(2021)
Article
Chemistry, Multidisciplinary
Mohamed S. S. Othman, Sofian T. T. Obeidat, Ghada M. M. Aleid, Amal H. H. Al-Bagawi, Mohamed A. A. Fareid, Reda Abdel Hameed, Kareem M. M. Mohamed, Mohamed S. S. Abdelfattah, Alaa Fehaid, Manal M. M. Hussein, Shimaa M. H. Aboelnaga, Ahmed E. E. Abdel Moneim
Summary: The study aimed to explore the potential anticonvulsant effect of green synthetized selenium nanoparticles (SeNPs) using Syzygium aromaticum extract (SAE) (SAE-SeNPs) on epileptic seizures and cortical damage induced by pentylenetetrazole (PTZ) injection in rats, as well as its mechanism. SAE-SeNPs demonstrated a significant increase in seizure latency time, reduction in seizure duration and death rate, counteracted PTZ-induced changes in oxidants and antioxidants, restored pro-inflammatory cytokine levels, and suppressed glial fibrillary acidic protein activity. Furthermore, SAE-SeNPs reduced PTZ-induced cortical cell apoptosis and modulated neurotransmitter levels. The study concludes that SAE-SeNPs exhibit anticonvulsant activity through antioxidant, anti-inflammatory, and anti-apoptotic effects, and modulation of neurotransmitters.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Environmental
Min Nie, Miaomiao Cai, Chihhung Wu, Shiqian Li, Suhua Chen, Guangyu Shi, Xu Wang, Chengxiao Hu, Jiatao Xie, Yanni Tang, Huan Zhang, Xiaohu Zhao
Summary: This study found that Bacillus cereus SES, with the capability of reducing both Cr(VI) and Se(IV), demonstrated a faster reduction of Cr(VI) in the presence of Se(IV). Proteomics analysis revealed the mechanisms underlying the enhanced resistance and reduction of Cr(VI) by B. cereus SES in the presence of Se(IV). Moreover, the combination of Se and B. cereus SES showed potential for reducing the toxicity of Cr(VI) by affecting the bioavailability of both Cr and Se in soil.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Physical
Hamad Sadiq, Farooq Sher, Saba Sehar, Eder C. Lima, Shengfu Zhang, Hafiz M. N. Iqbal, Fatima Zafar, Mirza Nuhanovic
Summary: The study demonstrated the synthesis of ZnO nanoparticles using leaf extract of Syzygium Cumini for the removal of toxic dyes. The nanoparticles showed effective photocatalytic degradation of methylene blue under sunlight, with a high removal efficiency at pH 7 and 180 minutes of exposure time. This biogenic method holds promise for the removal of harmful dyes in industrial wastewater treatment.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Archana Chakravarty, Iftkhar Ahmad, Preeti Singh, Gulshitab Aalam, Suresh Sagadevan, Saiqa Ikram, Mehraj Ud Din Sheikh
Summary: This study synthesized silver nanoparticles (AgNPs) using Syzygium cumini fruit extracts, evaluating their antioxidant, antibacterial, and anti-inflammatory properties, demonstrating their potential in green drug synthesis with less side effects.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Biology
Sonia Ouadi, Nicolas Sierro, Simon Goepfert, Lucien Bovet, Gaetan Glauser, Armelle Vallat, Manuel C. Peitsch, Felix Kessler, Nikolai V. IVanov
Summary: This study compares the newly assembled clove genome with Eucalyptus grandis to investigate genome evolution in the Myrtaceae family and identifies potential genes involved in the biosynthesis of eugenol. The findings provide important genomic resources for clove research and the Myrtaceae family.
COMMUNICATIONS BIOLOGY
(2022)
Article
Infectious Diseases
Erika Alejandra Jardon-Romero, Edith Lara-Carrillo, Maria G. Gonzalez-Pedroza, Victor Sanchez-Mendieta, Elias Nahum Salmeron-Valdes, Victor Hugo Toral-Rizo, Oscar F. Olea-Mejia, Sarai Lopez-Gonzalez, Raul A. Morales-Luckie
Summary: In this study, silver nanoparticles (AgNPs) were synthesized using clove extract through a green synthesis method, and their antimicrobial effect on oral microorganisms was evaluated. The results showed that AgNPs effectively inhibited the growth of various microorganisms commonly found in the oral cavity.
Article
Integrative & Complementary Medicine
Chen Lu, Chen Xi, Bai Yue, Zhao Zi-Nan, Cao Yun-Feng, Liu Li-Kun, Jiang Tao, Hou Jie
Summary: This study found that clove extract has strong inhibitory activity against EcNfsA, and some constituents in cloves such as ellagic acid showed strong to moderate inhibitory effects, which provides a new potential pathway for reducing the toxicity induced by bacterial nitroreductase.
CHINESE JOURNAL OF NATURAL MEDICINES
(2022)
Article
Biochemistry & Molecular Biology
Eva Maria Kalbhenn, Markus Kranzler, Agnieszka Gacek-Matthews, Gregor Grass, Timo D. Stark, Elrike Frenzel, Monika Ehling-Schulz
Summary: Bacillus cereus causes emetic type foodborne disease through production of the small peptide toxin cereulide. The CesNRPS multienzyme machinery, encoding Ces nonribosomal peptide synthetase, is located on a plasmid designated pCER270. Chromosomal transcriptional factors CodY and AbrB control ces transcription. In addition, a plasmid-encoded transcription factor PagRBc, homologous to PagR in Bacillus anthracis, also plays an important role in the regulation of cereulide synthesis.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Amr M. Shehabeldine, Ahmed S. Doghish, Walaa A. El-Dakroury, Mahmoud M. H. Hassanin, Abdulaziz A. Al-Askar, Hamada AbdElgawad, Amr H. Hashem
Summary: In this study, clove oil nanoemulsion (CL-nanoemulsion) and emulsion (CL-emulsion) were prepared using an ecofriendly method. The CL-nanoemulsion showed antibacterial, antifungal, anti-biofilm, and anticancer properties, with minimal inhibitory concentration (MIC) values between 0.31 and 5 mg/mL against bacteria and significant antifungal activity against various fungal strains. The CL-nanoemulsion also exhibited lower IC50 values in MCF-7 breast cancer cells compared to CL-emulsion, indicating its potential as an anticancer agent.
Article
Materials Science, Multidisciplinary
Mettilda Dhanislas, Shobana Sampath, Mary Shamya, Jerrine Joseph, Madhavan Yasasve, Mohammad Z. Ahmed, Ali S. Alqahtani, Shadab Kazmi, Perumal Asaithambi, Arumugam Suresh
Summary: This study synthesized silver nanoparticles from clove seeds and investigated their potential antimicrobial, anti-tubercular, and cytotoxic properties. The results indicated that these nanoparticles exhibited inhibitory activity against various bacterial cultures, including Mycobacterium tuberculosis.
MATERIALS TECHNOLOGY
(2023)
Review
Microbiology
Pauline Hinnekens, Nancy Fayad, Annika Gillis, Jacques Mahillon
Summary: Horizontal gene transfer (HGT) plays a significant role in shaping bacterial communities through conjugation-like events and transmissible plasmids. Bacillus cereus and related species possess numerous plasmids, including conjugative plasmids, which contribute to species differentiation. Although previous studies have reported conjugative plasmids in B. cereus isolates, in silico analyses suggest that there may be more self-transferable plasmids in B. cereus genomes. Laboratory conditions used for studying conjugation-related mechanisms are limited compared to natural environments. Considering the importance of B. cereus strains in health, economy, and ecology, it is crucial to understand the impact of conjugation within this bacterial group.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Sreekanth Rajagopalachar, Jayadev Pattar, Sikandar Mulla
Summary: In this work, high surface area MgO nanoparticles were successfully synthesized without using any directing agent or capping agent. The experimental conditions required to achieve high surface area MgO nanoparticles were investigated. The optical, structural, and morphological properties of the MgO nanoparticles were characterized using various techniques. The MgO nanoparticles exhibited good antibacterial activity against different bacteria.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Plant Sciences
Aline Figueiredo Cardoso, Ediane Conceicao Alves, Sidney D. Araujo da Costa, Alessandra Jackeline Guedes de Moraes, Dalton Dias da Silva Junior, Paulo Manoel Pontes Lins, Gisele Barata da Silva
Summary: The study found that a rhizobacteria strain Bacillus cereus isolated from coconut seedlings can promote the growth performance of coconut seedlings. By inoculating it onto the seedlings, it increased plant hormone levels and leaf gas exchange, improving growth parameters and nutrient levels of the coconut seedlings.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Polymer Science
Elena Stoleru, Raluca P. Dumitriu, Gabriela-Liliana Ailiesei, Catalina Yilmaz, Mihai Brebu
Summary: Hydrogel conjugates based on chitosan and an essential oil were prepared using an ultrasound-assisted emulsification method. The conjugates exhibited a gel-like structure with a compact and flexible network, as observed by rheology studies and SEM imaging. Swelling studies showed pH-dependent behavior and a significant overshooting effect. The presence of clove essential oil and its components imparted strong antioxidant and antimicrobial properties to the hydrogel conjugates, which remained bioactive for 6 months. The conjugates also demonstrated excellent stability even after being immersed in acidic solutions for two months.