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Journal articles on the topic 'Enhancement of antiamebic and antibacterial activities'

Author: Grafiati

Published: 5 June 2025

Last updated: 15 July 2025

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1

CHARANJIT, SINGH ANDOTRA, C. LANGER T., and KUMAR SHARMA SHIV. "Synthesis of some Nitro-substituted 1,3,4-Oxadiazoles, 1,3,4-Thiadiazoles and I ,2,4-Triazoles as Antiamebic Agents." Journal of Indian Chemical Society Vol. 66, Feb 1989 (1989): 122–23. https://doi.org/10.5281/zenodo.5995426.

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Post-Graduate Department of Chemistry, University of Jammu, Jammu-180 004 <em>Manuscript received 20 May 1987, revised 15 November 1988, accepted 14 December 1988</em> <strong>Some 2-(β-arylethyl)-5-phenyiamino-1,3,4-oxadiazoles, 2-(β-arylethyl)-5-phenyiamino-1,3,4-thiadiazoles and 3-(β-arylethyl)-4-phenyl-5-mercapto-1,2,4-triazoles have been synthesised through thiosemicarbazides. All these compounds have been tested in vitro for their amoebicidal activity against <em>E. histolytica</em></strong>

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2

Andiana, Pramudya, Moch Geerhan Miraja Syahdan, Arif Hendra Utama, Kasri Kasri, Khothibul Umam Al Awwaly, and Abdul Manab. "Enhancement of Antibacterial Activity from Chicken Head Protein Hydrolysate Using Dual-Enzyme Hydrolysis." Jurnal Ilmu dan Teknologi Hasil Ternak 19, no. 1 (2024): 15–24. http://dx.doi.org/10.21776/ub.jitek.2024.019.01.2.

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The chicken head is one of the by-products with a high protein content. Therefore, chicken heads can be used as raw materials to produce protein hydrolysates containing bioactive peptides that have biological activities, such as antibacterial, anti-inflammatory, and antioxidant activities. This research aimed to evaluate the use of the combined ratio of papain and bromelain enzymes to produce chicken head protein hydrolysate that has antibacterial activity. The research method used in this study was a laboratory experiment using a completely randomized design (CRD) with four treatments and fiv

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Fang, Weijun, Chaofa Xu Chaofa Xu, Jun Zheng, Guangjun Chen, and Kong Jiang. "Fabrication of Cu–Ag bimetal nanotube-based copper silicates for enhancement of antibacterial activities." RSC Advances 5, no. 49 (2015): 39612–19. http://dx.doi.org/10.1039/c5ra06065f.

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4

Moon, Keumok, and Jaeho Cha. "Enhancement of Antioxidant and Antibacterial Activities of Salvia miltiorrhiza Roots Fermented with Aspergillus oryzae." Foods 9, no. 1 (2020): 34. http://dx.doi.org/10.3390/foods9010034.

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The roots of Salvia miltiorrhiza are known to exhibit antioxidant and antibacterial activities. To improve the antioxidant and antibacterial activities of S. miltiorrhiza roots, the roots were fermented with Aspergillus oryzae at 25 °C for 3 weeks. The non-fermented (SME) and fermented (SMBE) roots of S. miltiorrhiza were extracted with 70% ethanol, respectively, and then fractionated with organic solvents. By fermentation, total phenolic and flavonoid contents, as well as antioxidant activity of SMBE, were increased by about 1.2 to 1.3 times compared with those of SME. The antibacterial activ

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Sayeed, Mohammed Abu, Altaf Hossen, Repon Saha, and Md Jakaria. "Antimicrobial activities of isolated probiotics and their metabolites against some pathogenic microorganisms." IIUC Studies 14, no. 1 (2018): 21–28. http://dx.doi.org/10.3329/iiucs.v14i1.37652.

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The study was aimed to finding the antimicrobial activities among probiotics isolated from different yoghurts and their metabolites against some common bacterial pathogens. The nutrient agar media overlay method (Disc diffusion Method) was used to determine the presence of antibacterial effects among the isolated probiotics. Probiotics produced potential antibacterial activities against several pathogenic bacteria and fungi. The maximum antibacterial property (13.5 mm of zone of inhibition) of bacterial strain found against Salmonella paratyphi. Conversly, bacterial metabolites produced maximu

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Li, Tuo Ping, Su Hong Li, Ru Gang Zhu, et al. "Enhancement of Lactic Acid on Antibacterial Activity of Haw Pectic Oligosaccharides." Advanced Materials Research 396-398 (November 2011): 1329–32. http://dx.doi.org/10.4028/www.scientific.net/amr.396-398.1329.

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The enhancive effects of lactic acid on the antibacterial activities of haw pectic oligosaccharides (HPOS) against the Gram positive bacteria Staphylococcus aureus, Bacillus subtilis and Streptococcus faecalis, were investigated. Both HPOS and lactic acid showed dose and pH dependent antibacterial activity against S. aureus and B. subtilis. S. faecalis was sensitive to the HPOS but was resistant to the lactic acid. The antibacterial activity of HPOS against these three bacteria could be enhanced by co-treatment with lactic acid. The results revealed that HPOS may be useful as a food preservat

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Yao, Aifang, Tianxing Liu, Yuhai Cai, et al. "Progressive Design of a Ranatuerin-2 Peptide from Amolops wuyiensis: Enhancement of Bioactivity and In Vivo Efficacy." Antibiotics 13, no. 1 (2023): 5. http://dx.doi.org/10.3390/antibiotics13010005.

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Antimicrobial peptides (AMPs) that exert multiple functions are considered promising candidates to combat the bacterial drug resistance crisis. Nowadays, targeted peptide modification has been widely recognised to improve biological activity and make up for deficiencies in clinical applications such as toxicity. In this study, a helix-loop peptide was isolated and identified from the skin secretion of the Wuyi torrent frog Amolops wuyiensis, namely, ranatuerin-2-AW (R2AW) (GFMDTAKNVAKNVAATLLDKLKCKITGGC). Target modifications were made to R2AW to study the structure–activity relationships and t

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Ullah, Z., M. T. Qureshi, K. Sultana, et al. "Al-ions effect on structural, optical, antibacterial, and photocatalytic activities of ZnO nanostructures." Digest Journal of Nanomaterials and Biostructures 18, no. 3 (2023): 995–1006. http://dx.doi.org/10.15251/djnb.2023.183.995.

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In this work, Pure and aluminum doped zinc oxide nanostructures were successfully synthesized through a well-established hydrothermal method. The hexagonal wurtzite structure, and nano porous shape for Al dopant in ZnO were confirmed via XRD and SEM analysis. The reduction in energy band gap (3.40 to 3.19 eV) for Al dopant samples and enhancement in inhibition zones (7 mm- 17 mm) for pure and Al-doped ZnO were recorded. The photocatalytic activity of Al doped ZnO was shown to be several times more efficient than in prior studies. The enhancement in these parameters suggest that these materials

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Li, Wan-Di, Jing Gao, and Lu Wang. "Enhancement of durable photocatalytic properties of cotton/polyester fabrics using TiO2/SiO2 via one step sonosynthesis." Journal of Industrial Textiles 46, no. 8 (2016): 1633–55. http://dx.doi.org/10.1177/1528083716629138.

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This study aimed to increase the photocatalytic efficiency and durability of functional fabrics coated with TiO2/SiO2 nanoparticles. Tetrabutyl titanate and tetraethyl orthosilicate were used as precursor and ultrasonic irradiation was utilized as a tool for synthesis of TiO2/SiO2 in low temperature and loading nanoparticles onto the polyester-cotton fabric. The multifunctionality of such nanocomposite material was evaluated by analyzing its hydrophilicity, photocatalytic, and antibacterial activities. The hydrophilicity and photocatalytic activity were analyzed based on water droplet contact

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Kumura, Ko, Yoshinari Wakiyama, Kazutaka Ueda, et al. "Synthesis and antibacterial activity of novel lincomycin derivatives. I. Enhancement of antibacterial activities by introduction of substituted azetidines." Journal of Antibiotics 69, no. 6 (2016): 440–45. http://dx.doi.org/10.1038/ja.2015.134.

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Wu, Chong, Jian Liu, Xichun Pan, et al. "Design, Synthesis and Evaluation of the Antibacterial Enhancement Activities of Amino Dihydroartemisinin Derivatives." Molecules 18, no. 6 (2013): 6866–82. http://dx.doi.org/10.3390/molecules18066866.

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Aldayel, Munirah F. "Enhancement of the Bioactive Compound Content and Antibacterial Activities in Curcuma Longa Using Zinc Oxide Nanoparticles." Molecules 28, no. 13 (2023): 4935. http://dx.doi.org/10.3390/molecules28134935.

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Incorporating nanoparticles into plant cultivation has been shown to improve growth parameters and alter the bioactive component compositions of many plant species, including Curcumin longa. The aim of the current study was to investigate the effects of foliar application of zinc oxide nanoparticles on the content of bioactive compounds and their antibacterial activities against potential bacterial pathogens. To this end, C. longa leaves were treated with different doses of ZnO NPs to see how this affected their bioactive component composition. The effect of different doses of ZnO NPs on the a

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Touliabah, Hussein E., and Dina A. Refaay. "Enhancement of Anticancer, Antibacterial, and Acetylcholinesterase Inhibition Activities from Oscillatoria sancta under Starvation Conditions." Water 15, no. 4 (2023): 664. http://dx.doi.org/10.3390/w15040664.

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The growth response and biological activity of the cyanobacterium Oscillatoria sancta were investigated in starvation conditions. Oscillatoria sancta growth potential was examined on BG11 and Zarrouk’s media. Zarrouk’s medium supported the maximum growth of the test cyanobacterium. Zarrouk’s medium composition was modified by excluding CaCl2·2H2O, NaCl, EDTA (Na), micronutrients, and replacing sodium nitrate with urea. Using Zarrouk’s medium and three different concentrations of modified Zarrouk’s media (Treatments 1–3), the growth response of Oscillatoria sancta (MZ366482) was examined and co

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DOLOROSA LIMBONG, GRACE, LEVY NATHANAEL NABABAN, ADELINA MANURUNG, and MERRY MERYAM MARTGRITA. "Antioxidant and Antibacterial Activities Enhancement of Solid-state Fermented Candlenut Kernels by Aspergillus oryzae." Microbiology Indonesia 13, no. 2 (2019): 50–55. http://dx.doi.org/10.5454/mi.13.2.2.

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Tayel, Ahmed A., Amira G. Bahnasy, Khaled E. Mazrou, et al. "Biopreservation and Quality Enhancement of Fish Surimi Using Colorant Plant Extracts." Journal of Food Quality 2021 (January 28, 2021): 1–8. http://dx.doi.org/10.1155/2021/6624565.

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The biopreservation, flavoring, and coloration of foodstuffs, e.g., seafoods, with natural plant derivatives are major demands for consumers and overseers. Different colored plant parts, i.e., Hibiscus sabdariffa calyces, Curcuma longa rhizomes, and Rhus coriaria fruits, were extracted and evaluated as biopreservatives, antimicrobial and colorant agents for fish surimi from Oreochromis niloticus. All colorant plant extracts (CPEs) exhibited strong antibacterial activities against screened pathogens, Escherichia coli, Salmonella typhimurium, Staphylococcus aureus, and Pseudomonas aeruginosa. H.

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Parihar, Shweta. "A review on pharmacological activities of Andrographis paniculata." Biological Sciences 02, no. 01 (2022): 155–65. http://dx.doi.org/10.55006/biolsciences.2022.2106.

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Andrographis paniculata, is a very famous herbal plant belonging to the family Acanthaceae that has been used since ancient times. Andrographis paniculata, is also called Kalmegh and ‘King of Bitters'. Andrographis paniculata, has been officially mentioned in Indian Pharmacopoeia It is a chief constituent of many Ayurvedic, Siddha, Unani, formulations which are used in the management of liver-related issues. It is a common herbal medicine used to treat snake and bug bites, diabetes, dysentery, fever, and malaria, abortifacient, cancer lytic, depurative, expectorant, hepatoprotective, hypoglyce

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Lu, Yueyang, Wanchen Zou, Lei Wang, et al. "Kassporin-KS1: A Novel Pentadecapeptide from the Skin Secretion of Kassina senegalensis: Studies on the Structure-Activity Relationships of Site-Specific “Glycine-Lysine” Motif Insertions." Antibiotics 11, no. 2 (2022): 243. http://dx.doi.org/10.3390/antibiotics11020243.

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Due to the abuse of traditional antibiotics and the continuous mutation of microbial resistance genes, microbial infections have become serious problems for human health. Therefore, novel antibacterial agents are urgently required, and amphibian antimicrobial peptides (AMP) are among the most interesting potential antibacterial leads. In this research, a novel peptide, named kassporin-KS1 (generically QUB-1641), with moderate antibacterial activity against Gram-positive bacteria, was discovered in the skin secretion of the Senegal running frog, Kassina senegalensis. Using site-specific sequenc

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Shirmohammadzadeh, Leila, Hadi Fallah Moafi, and Abdollah Fallah Shojaei. "Silver-Doped BaSrTiO3 Nanocomposite: Synthesis, Characterization, Antibacterial and Photocatalytic Activities." Journal of Nanoscience and Nanotechnology 21, no. 10 (2021): 5131–42. http://dx.doi.org/10.1166/jnn.2021.19340.

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In this research, strontium titanate (SrTiO3), barium titanate (BaTiO3), barium strontium titanate (BaSrTiO3), and Ag-doped BaSrTiO3 nanocomposites with different Ag contents were fabricated using the sol–gel chemical route. The prepared samples were characterized by several techniques including scanning electron microscopy (SEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS), differential reflectance spectroscopy (DRS), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), inductively coupled plasma spectroscopy (ICP), and Brunauer-Emmet

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Abdelrazik, Tay, and Fouad M. F. Elshaghabee. "Enhancement of Selected Health Benefits in Fermented Cow and Soy Milk Supplemented with Water Soluble Curcumin." Current Research in Nutrition and Food Science Journal 9, no. 3 (2021): 961–69. http://dx.doi.org/10.12944/crnfsj.9.3.23.

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Different formulates of fermented cow and soy milk by Lactobacillus plantarum EMCC 1027 with 50, 100, and 150 mg/100 mL curcumin were investigated for antibacterial, antioxidant, anti-colonic cancer, and anti-inflammation activities. Also, the viability of L. plantarum was monitored during cold storage period. Our results showed that values of antibacterial, antioxidant, anti-colonic cancer, and anti-inflammation activities in crude extracts of fermented soy milk were significantly increased in comparison with crude extracts of fermented cow milk. The addition of different concentrations (100

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Araújo-Neto, José B. de, Maria M. C. da Silva, Cícera D. de M. Oliveira-Tintino, et al. "Enhancement of Antibiotic Activity by 1,8-Naphthyridine Derivatives against Multi-Resistant Bacterial Strains." Molecules 26, no. 23 (2021): 7400. http://dx.doi.org/10.3390/molecules26237400.

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The search for new antibacterial agents has become urgent due to the exponential growth of bacterial resistance to antibiotics. Nitrogen-containing heterocycles such as 1,8-naphthyridine derivatives have been shown to have excellent antimicrobial properties. Therefore, the purpose of this study was to evaluate the antibacterial and antibiotic-modulating activities of 1,8-naphthyridine derivatives against multi-resistant bacterial strains. The broth microdilution method was used to determine the minimum inhibitory concentration (MIC) of the following compounds: 7-acetamido-1,8-naphthyridin-4(1H

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Malathi, S., Kumar T. Anantha, Sherin R. Jeba, and C. V. Mythili. "Facile Synthesis of Polymer Capped NiO Nanoparticles, Characterization, Photocatalytic and their Antibacterial Activities." Research Journal of Chemistry and Environment 27, no. 12 (2023): 44–50. http://dx.doi.org/10.25303/2712rjce044050.

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In the field of nanotechnology, the creation of efficient and efficient procedures for the synthesis of nanoparticles was important. The field of nanotechnology focused on the creation and application of devices and structures with organisational characteristics between the size of a single molecule and around 100 nm, where unique qualities emerge in contrast to bulk materials. The biological applications of nickel oxide include the enhancement of magnetic resonance imaging, the storage of magnetic data and the purification of biological samples using ferrofluids for catalysis, drug delivery,

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Xie, Sheng, Sesha Manuguri, Giampiero Proietti, et al. "Design and synthesis of theranostic antibiotic nanodrugs that display enhanced antibacterial activity and luminescence." Proceedings of the National Academy of Sciences 114, no. 32 (2017): 8464–69. http://dx.doi.org/10.1073/pnas.1708556114.

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We report the modular formulation of ciprofloxacin-based pure theranostic nanodrugs that display enhanced antibacterial activities, as well as aggregation-induced emission (AIE) enhancement that was successfully used to image bacteria. The drug derivatives, consisting of ciprofloxacin, a perfluoroaryl ring, and a phenyl ring linked by an amidine bond, were efficiently synthesized by a straightforward protocol from a perfluoroaryl azide, ciprofloxacin, and an aldehyde in acetone at room temperature. These compounds are propeller-shaped, and upon precipitation into water, readily assembled into

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Jin, Peng, Rui Yao, Dingkui Qin, Qing Chen, and Qizhen Du. "Enhancement in Antibacterial Activities of Eugenol-Entrapped Ethosome Nanoparticles via Strengthening Its Permeability and Sustained Release." Journal of Agricultural and Food Chemistry 67, no. 5 (2019): 1371–80. http://dx.doi.org/10.1021/acs.jafc.8b06278.

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Bouchikhi, Noria, Mehdi Adjdir, Kamel C. Bendeddouche, et al. "Enhancement of adsorption capacity of low cost mesoporous MCM-41 and their antibacterial and antifungal activities." Materials Research Express 6, no. 12 (2020): 1250j7. http://dx.doi.org/10.1088/2053-1591/ab5dda.

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Li, Jie, Bing Xie, Kai Xia, Yingchun Li, Jing Han, and Chunmao Zhao. "Enhanced Antibacterial Activity of Silver Doped Titanium Dioxide-Chitosan Composites under Visible Light." Materials 11, no. 8 (2018): 1403. http://dx.doi.org/10.3390/ma11081403.

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Nano titanium dioxide (TiO2) with photocatalytic activity was firstly modified by diethanolamine, and it was then doped with broad spectrum antibacterial silver (Ag) by in situ method. Further, both Ag doped TiO2-chitosan (STC) and TiO2-chitosan (TC) composites were prepared by the inverse emulsion cross-linking reaction. The antibacterial activities of STC composites were studied and their antibacterial mechanisms under visible light were investigated. The results show that in situ doping and inverse emulsion method led to good dispersion of Ag and TiO2 nanoparticles on the cross-linked chito

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Fagbemi, Kehinde Oluwakemi, Olufunmiso Olusola Olajuyigbe, and Roger Coopoosamy. "Biogenic synthesis, characterization, antibacterial and antioxidant activities of silver nanoparticles mediated from Tamarindus indica Linn fruit pulp extract." Journal of Herbmed Pharmacology 12, no. 4 (2023): 459–68. http://dx.doi.org/10.34172/jhp.2023.43430.

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Introduction: Due to the numerous potentials discovered from biologically synthesized silver nanoparticles (SNPs), the interest of many researchers has been stirred up. Tamarindus indica fruit has many therapeutic potentials attributed to fruit. Hence, the objective of this study was to synthesize, characterize, and evaluate the in vitro antioxidant and antibacterial activities of SNPs mediated from T. indica fruit pulp extract. Methods: The bioreduction of silver nitrate was performed using methanol extract of T. indica fruit pulp. UV–vis spectrophotometry studies at 480 nm confirmed the synt

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Roguska, A., A. Belcarz, P. Suchecki, M. Andrzejczuk, and M. Lewandowska. "Antibacterial Composite Layers on Ti: Role of ZnO Nanoparticles." Archives of Metallurgy and Materials 61, no. 1 (2016): 213–16. http://dx.doi.org/10.1515/amm-2016-0039.

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Problem of Post-operative infections of implant materials caused by bacterial adhesion to their surfaces is very serious. Enhancement of antibacterial properties is potentially beneficial for biomaterials value. Therefore, the metallic and metallic oxide nanoparticles attract particular attention as antimicrobial factors. The aim of this work was to create nanotubular (NT) oxide layers on Ti with the addition of ZnO nanoparticles, designed for antibacterial biomedical coatings. Antimicrobial activities of titanium, TiO2NT and ZnO/TiO2NT surfaces were evaluated against bacterial strain typical

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Roguska, A., A. Belcarz, P. Suchecki, M. Andrzejczuk, and M. Lewandowska. "Antibacterial Composite Layers on Ti: Role of ZnO Nanoparticles." Archives of Metallurgy and Materials 61, no. 2 (2016): 937–40. http://dx.doi.org/10.1515/amm-2016-0159.

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Abstract Problem of post-operative infections of implant materials caused by bacterial adhesion to their surfaces is very serious. Enhancement of antibacterial properties is potentially beneficial for biomaterials value. Therefore, the metallic and metallic oxide nanoparticles attract particular attention as antimicrobial factors. The aim of this work was to create nanotubular (NT) oxide layers on Ti with the addition of ZnO nanoparticles, designed for antibacterial biomedical coatings. Antimicrobial activities of titanium, TiO2 NT and ZnO/TiO2 NT surfaces were evaluated against bacterial stra

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Wang, Lunji, Huijuan Li, Jinhao Chen, Yi Wang, Yuqing Gu, and Min Jiu. "Antibacterial Mechanisms and Antivirulence Activities of Oridonin against Pathogenic Aeromonas hydrophila AS 1.1801." Microorganisms 12, no. 2 (2024): 415. http://dx.doi.org/10.3390/microorganisms12020415.

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Aeromonas hydrophila, a Gram-negative bacterium widely found in freshwater environments, acts as a common conditional pathogen affecting humans, livestock, and aquatic animals. In this study, the impact of oridonin, an ent-kaurane diterpenoid compound derived from Rabdosia rubescens, on the virulence factors of A. hydrophila AS 1.1801 and its antibacterial mechanism was elucidated. The minimum inhibitory concentration (MIC) of oridonin against A. hydrophila AS 1.1801 was 100 μg/mL. Oridonin at inhibitory concentrations could significantly increase the electrical conductivity in the supernatant

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Almeida, Ray S., Priscilla R. Freitas, Ana Carolina J. Araújo, et al. "GC-MS Profile and Enhancement of Antibiotic Activity by the Essential Oil of Ocotea odorífera and Safrole: Inhibition of Staphylococcus aureus Efflux Pumps." Antibiotics 9, no. 5 (2020): 247. http://dx.doi.org/10.3390/antibiotics9050247.

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Considering the evidence that essential oils, as well as safrole, could modulate bacterial growth in different resistant strains, this study aims to characterize the phytochemical profile and evaluate the antibacterial and antibiotic-modulating properties of the essential oil Ocotea odorífera (EOOO) and safrole against efflux pump (EP)-carrying strains. The EOOO was extracted by hydrodistillation, and the phytochemical analysis was performed by gas chromatography coupled to mass spectrometry (GC-MS). The antibacterial and antibiotic-modulating activities of the EOOO and safrole against resista

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Deshmukh, Sunil K., Laurent Dufossé, Hemraj Chhipa, Sanjai Saxena, Girish B. Mahajan, and Manish Kumar Gupta. "Fungal Endophytes: A Potential Source of Antibacterial Compounds." Journal of Fungi 8, no. 2 (2022): 164. http://dx.doi.org/10.3390/jof8020164.

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Antibiotic resistance is becoming a burning issue due to the frequent use of antibiotics for curing common bacterial infections, indicating that we are running out of effective antibiotics. This has been more obvious during recent corona pandemics. Similarly, enhancement of antimicrobial resistance (AMR) is strengthening the pathogenicity and virulence of infectious microbes. Endophytes have shown expression of various new many bioactive compounds with significant biological activities. Specifically, in endophytic fungi, bioactive metabolites with unique skeletons have been identified which co

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Abdalla, Muna Ali, Ibukun Famuyide, Madelien Wooding, Lyndy J. McGaw, and Karl H. Mühling. "Secondary Metabolite Profile and Pharmacological Opportunities of Lettuce Plants following Selenium and Sulfur Enhancement." Pharmaceutics 14, no. 11 (2022): 2267. http://dx.doi.org/10.3390/pharmaceutics14112267.

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Selenium (Se) is an essential trace nutrient for humans and animals owing to its role in redox regulation, thyroid hormone control factors, immunity, inflammatory reactions, brain activities, and carbohydrate regulation. It is also important to support muscle development, as well as for reproductive and cardiovascular well-being. Furthermore, sulfur is known to be a healing element, due to the remarkable function of specialized and secondary S-containing compounds. The scope of the current study was to determine the impact of Se and S enrichment on the secondary metabolite accumulation and ant

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Raza, Saleem, Sikandar Khan, Ata Ur Rahman, Muslim Raza, and Fazal Wahid. "Enhancement of Physico-chemical and Biological Activities of Antibiotic Cephradine by Gamma Irradiation." Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences 65, no. 1 (2022): 1–8. http://dx.doi.org/10.52763/pjsir.phys.sci.65.1.2022.1.8.

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Radiation based sterilization is a common tool for microbial inactivation in different products on a commercial scale. The objective of the current study was to determine the effect of gamma radiation on cephradine antibiotic in the solid-state to enhance its biological response. Cephradine drug in powder form was treated with different doses (25, 50, 75, 100 and 125 kGy) of the cobalt-60 source in a Gamma cell-220 at a current rate of 8.5 gray/h. The effect of radiation doses on antibiotic was assessed with the help of different analytical techniques such as FT-IR, UV, XRD, SEM and HPLC. The

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Yan, Hong, Zengwei Zhu, Yumei Long, and Weifeng Li. "In-situ intercalation of MoO3-x in g-C3N4 for the enhancement of photocatalytic and antibacterial activities." Journal of Photochemistry and Photobiology A: Chemistry 390 (March 2020): 112297. http://dx.doi.org/10.1016/j.jphotochem.2019.112297.

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Lee, You Jeong, Kwangho Song, Song-Hyun Cha, Seonho Cho, Yeong Shik Kim, and Youmie Park. "Sesquiterpenoids from Tussilago farfara Flower Bud Extract for the Eco-Friendly Synthesis of Silver and Gold Nanoparticles Possessing Antibacterial and Anticancer Activities." Nanomaterials 9, no. 6 (2019): 819. http://dx.doi.org/10.3390/nano9060819.

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Sesquiterpenoids from the flower bud extract of Tussilago farfara were effectively utilized as a reducing agent for eco-friendly synthesis of silver and gold nanoparticles. The silver and gold nanoparticles had a characteristic surface plasmon resonance at 416 nm and 538 nm, respectively. Microscopic images revealed that both nanoparticles were spherical, and their size was measured to be 13.57 ± 3.26 nm for the silver nanoparticles and 18.20 ± 4.11 nm for the gold nanoparticles. The crystal structure was determined to be face-centered cubic by X-ray diffraction. Colloidal stability of the nan

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Wang, Chengyu, Long Mao, Bowen Zheng, Yujie Liu, Jin Yao, and Heping Zhu. "Development of Sustainable and Active Food Packaging Materials Composed by Chitosan, Polyvinyl Alcohol and Quercetin Functionalized Layered Clay." Polymers 16, no. 6 (2024): 727. http://dx.doi.org/10.3390/polym16060727.

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In order to solve the problems of insufficient active functions (antibacterial and antioxidant activities) and the poor degradability of traditional plastic packaging materials, biodegradable chitosan (CS)/polyvinyl alcohol (PVA) nanocomposite active films reinforced with natural plant polyphenol-quercetin functionalized layered clay nanosheets (QUE-LDHs) were prepared by a solution casting method. In this study, QUE-LDHs realizes a combination of the active functions of QUE and the enhancement effect of LDHs nanosheets through the deposition and complexation of QUE and copper ions on the LDHs

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Tahya, Candra Yulius, Karnelasatri Karnelasatri, Wahyu Irawati, and Sri Wahyu Ningsih Munthe. "Silver Nanoparticle Biosynthesis using Distimake vitifolius Extract for Enhancement of Antibacterial and Antioxidant Activity." Molekul 19, no. 2 (2024): 281. http://dx.doi.org/10.20884/1.jm.2024.19.2.10295.

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ABSTRACT. The biological method for silver nanoparticle synthesis emphasizes green synthesis, which is faster, environmentally safer, facile, energy-efficient, and cost-effective. It provides good alternatives to physical and chemical methods. In this research, we have synthesized silver nanoparticles using D. vitifolius ethanolic extract. The 38 natural compounds of flavonoid, phenolic or polyphenol compositions have been determined by LC-MS/MS-QTOF which is carried out using UNIFI software equipped with a mass spectrum library of active substances from natural ingredients from the Waters dat

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Hayashi, Kenichiro, Kosuke Nozaki, Zhenquan Tan, et al. "Enhanced Antibacterial Property of Facet-Engineered TiO2 Nanosheet in Presence and Absence of Ultraviolet Irradiation." Materials 13, no. 1 (2019): 78. http://dx.doi.org/10.3390/ma13010078.

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Titania (TiO2) has attracted much attention recently for reducing bacterial diseases by the generation of reactive oxygen species (ROS) under UV irradiation. However, demand for higher photocatalytic activity due to higher recombination of electron and hole remains. The aims of this study were to make titania with higher antibacterial property and show the mechanisms of the bactericidal effect. In this study, we hydrothermally synthesized TiO2 nanosheets (NS) with highly-oriented structures. Samples were divided into five groups, depending on the fluorine/titanium ratio in the raw material, na

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Vuong, Bao Thy, Thanh Beo Vo, Huu Thanh Huy Tran, and The Vinh Bui. "Study on Antibacterial and Antioxidant Activity of Extracts from Hydroponic Pennywort Tubers (Centella Asiatica (L.) Urban)." INTERNATIONAL JOURNAL OF LIFE SCIENCE AND AGRICULTURE RESEARCH 03, no. 06 (2024): 497–502. https://doi.org/10.5281/zenodo.12200975.

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Several plant species have been found to contain bioactive compounds that contribute positively to health and are utilized across food, pharmaceutical, and cosmetic industries. The purpose of this research is to investigate the antibacterial and antioxidant activities of extracts derived from hydroponically grown pennywort tubers (<em>Entella asiatica</em> (L.) Urban). The results show that the antioxidant activity of the extract (IC50) was 6.85 mg/mL. The extract demonstrates antibacterial efficacy against foodborne pathogen <em>Escherichiacoli</em> and the pathogenic bacterium

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Chinnasamy, Gandhimathi, Smitha Chandrasekharan, and Somika Bhatnagar. "Biosynthesis of Silver Nanoparticles from Melia azedarach: Enhancement of Antibacterial, Wound Healing, Antidiabetic and Antioxidant Activities." International Journal of Nanomedicine Volume 14 (December 2019): 9823–36. http://dx.doi.org/10.2147/ijn.s231340.

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Wahab, Md A., Chowdhury M. Hasan, Zeid A. Alothman, and Md Shahriar A. Hossain. "In-situ incorporation of highly dispersed silver nanoparticles in nanoporous carbon nitride for the enhancement of antibacterial activities." Journal of Hazardous Materials 408 (April 2021): 124919. http://dx.doi.org/10.1016/j.jhazmat.2020.124919.

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Lozano Chamizo, Laura, Yurena Luengo Morato, Karina Ovejero Paredes, Rafael Contreras Caceres, Marco Filice, and Marzia Marciello. "Ionotropic Gelation-Based Synthesis of Chitosan-Metal Hybrid Nanoparticles Showing Combined Antimicrobial and Tissue Regenerative Activities." Polymers 13, no. 22 (2021): 3910. http://dx.doi.org/10.3390/polym13223910.

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The treatment of skin wounds poses significant clinical challenges, including the risk of bacterial infection. In particular due to its antimicrobial and tissue regeneration abilities chitosan (a polymeric biomaterial obtained by the deacetylation of chitin) has received extensive attention for its effectiveness in promoting skin wound repair. On the other hand, due to their intrinsic characteristics, metal nanoparticles (e.g., silver (Ag), gold (Au) or iron oxide (Fe3O4)) have demonstrated therapeutic properties potentially useful in the field of skin care. Therefore, the combination of these

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ANDRÄ, Jörg, Karl LOHNER, Sylvie E. BLONDELLE, et al. "Enhancement of endotoxin neutralization by coupling of a C12-alkyl chain to a lactoferricin-derived peptide." Biochemical Journal 385, no. 1 (2004): 135–43. http://dx.doi.org/10.1042/bj20041270.

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Antibacterial peptide acylation, which mimics the structure of the natural lipopeptide polymyxin B, increases antimicrobial and endotoxin-neutralizing activities. The interaction of the lactoferricin-derived peptide LF11 and its N-terminally acylated analogue, lauryl-LF11, with different chemotypes of bacterial lipopolysaccharide (LPS Re, Ra and smooth S form) was investigated by biophysical means and was related to the peptides' biological activities. Both peptides exhibit high antibacterial activity against the three strains of Salmonella enterica differing in the LPS chemotype. Lauryl-LF11

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Malhotra, Jaskaran Singh, Arnav Sharma, Arun Kumar Singh, Sanjeev Kumar, Bhupendra Singh Rana, and Sanjeev Kumar. "Investigations on Photocatalytic, Antimicrobial and Magnetic Properties of Sol–Gel-Synthesized Ga-Doped ZnO Nanoparticles." International Journal of Nanoscience 18, no. 01 (2019): 1850014. http://dx.doi.org/10.1142/s0219581x1850014x.

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Gallium (Ga)-doped zinc oxide (ZnO) nanoparticles were synthesized using simple and cost-effective sol–gel method. X-ray powder diffraction studies illustrated the crystalline nature of Ga-doped ZnO nanoparticles with hexagonal wurtzite structure. Fourier-transform infrared spectroscopy and energy dispersive X-ray fluorescence confirmed the Ga[Formula: see text] incorporation in ZnO. The photocatalytic activities of all the synthesized samples were performed on methylene blue dye solution exposed under UV light. The antibacterial activities of the synthesized nanoparticles were investigated ag

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Kesornbuakao, Kittiya, Suksun Amornraksa, Malinee Sriariyanun, Suvaluk Asavasanti, and Patchanee Yasurin. "The Antibacterial and Antioxidant Activity of Centella Asiatica Chloroform Extract-loaded Gelatin Nanoparticles." MATEC Web of Conferences 187 (2018): 02002. http://dx.doi.org/10.1051/matecconf/201818702002.

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Nanoencapsulation of Centella asaitica (CA) crude chloroform extract seems to be an attractive approach that may improve drug bioavailability and drug delivery system. In the study, CA extract-loaded gelatin nanoparticles (CGNP) were developed by gelatin one-step and two-step desolvation methods, using three different ratios between CA crude chloroform extract and gelatin (1:2, 1:3, and 1:4 w/w). The antibacterial and antioxidants activities of CGNP and CA were compared. The antioxidant activity of CGNP and CA was evaluated by using DPPH radical scavenging assay and ferric reducing antioxidant

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Iftikhar, Muhammad, Muhammad Zahoor, Sumaira Naz, et al. "Green Synthesis of Silver Nanoparticles Using Grewia optiva Leaf Aqueous Extract and Isolated Compounds as Reducing Agent and Their Biological Activities." Journal of Nanomaterials 2020 (October 24, 2020): 1–10. http://dx.doi.org/10.1155/2020/8949674.

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In this study, an attempt was made to synthesize silver nanoparticles (Ag-NPs) using Grewia optiva leaf extract and isolated compounds. The bioreductant capacity of Grewia optiva leaf extract for the synthesis of Ag-NPs was assessed using various confirmatory techniques like thermogravimetric analysis (TGA), particle size analysis (PSA), energy-dispersive X-ray (EDX), X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and UV-Visible spectroscopy. The presence of various bioactive compounds in leaf aqueous extract was confirmed

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Minzanova, Salima, Vladimir Mironov, Daria Arkhipova, et al. "Biological Activity and Pharmacological Application of Pectic Polysaccharides: A Review." Polymers 10, no. 12 (2018): 1407. http://dx.doi.org/10.3390/polym10121407.

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Pectin is a polymer with a core of alternating α-1,4-linked d-galacturonic acid and α-1,2-l-rhamnose units, as well as a variety of neutral sugars such as arabinose, galactose, and lesser amounts of other sugars. Currently, native pectins have been compared to modified ones due to the development of natural medicines and health products. In this review, the results of a study of the bioactivity of pectic polysaccharides, including its various pharmacological applications, such as its immunoregulatory, anti-inflammatory, hypoglycemic, antibacterial, antioxidant and antitumor activities, have be

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Hwang, Young-A., Woo-Do Lee, Juhyeon Kim, et al. "In Vitro Fermentation Characteristics of Pine Needles (Pinus densiflora) as Feed Additive." Fermentation 9, no. 5 (2023): 415. http://dx.doi.org/10.3390/fermentation9050415.

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In this study, the fermentation characteristics of pine needles were investigated for the first time and the possibility of using them as plant-derived feed additives was confirmed. Four types of fermented pine needle were prepared: (1) natural fermentation (CON); (2) Lactobacillus plantarum SK4315 fermentation (LPF); (3) Saccharomyces cerevisiae SK3587 fermentation (SCF); and (4) co-culture fermentation (CCF). Fermentation lasted 48 h, and samples were taken at 4-h intervals until 12 h, then at 24 and 48 h. As analysis items, fermentation characteristics, antibacterial, antioxidant, and enzym

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Maryam, Tosty Maylangi Sitorus, Hartami Dewi, and Rizki Fadhillah Lubis. "The Effect of the Addition of Gambir Catechins on Antioxidants and Antibacterial Hard Candy Products." Journal of Hunan University Natural Sciences 49, no. 4 (2022): 212–19. http://dx.doi.org/10.55463/issn.1674-2974.49.4.21.

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The COVID-19 pandemic has changed consumer demands for food products due to the importance of eating functional foods capable of increasing the body's immune system, such as those containing natural bioactive compounds. Immune system enhancement through food intake is one of the top priorities for consumers globally. Hard candy products are ordinary foods consumed by people of all ages and social classes with numerous negative consumer perceptions due to their ability to cause dental caries. Therefore, it is imperative to develop hard candy as a functional food with antioxidant and antibacteri

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Nithiyadevi, K., and K. Ravichandran. "Enhancement of Photocatalytic and Antibacterial Activities of ZnO:Ag Nanopowders Through the Addition of Bamboo Charcoal: An Efficient Natural Adsorbent." Acta Metallurgica Sinica (English Letters) 30, no. 12 (2017): 1249–56. http://dx.doi.org/10.1007/s40195-017-0618-z.

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