keyword
https://read.qxmd.com/read/38537174/preparation-of-antibacterial-biobased-fibers-by-triaxial-microfluidic-spinning-technology-using-ionic-liquids-as-the-solvents
#1
JOURNAL ARTICLE
Zhimin Zhao, Junlei Wang, Hanmeng Yuan, Jie Xu, Hongshuai Gao, Yi Nie
Bacterial infections have become a serious threat to public health. The utilization of antibacterial textiles offers an effective way to combat bacterial infections at the source, instead of relying solely on antibiotic consumption. Herein, efficient and durable antibacterial fibers based on quercetin and cellulose were prepared by a triaxial microfluidic spinning technology using ionic liquids (ILs) as the solvents. It was indicated that the structure and properties of the antibacterial fibers were affected by the type of IL and the flow rates during the triaxial microfluidic spinning process...
March 27, 2024: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38536823/does-the-incorporation-of-graphene-oxide-into-pmma-influence-its-antimicrobial-activity
#2
JOURNAL ARTICLE
I Ferreira, B D Sahm, O L Alves, J A M Agnelli, A C Dos Reis
INTRODUCTION: The increase in infectious diseases mediated by oral bacteria has been one of the most potent threats to human health, specifically to the elderly. Researchers seek to incorporate antimicrobial nanomaterials into PMMA to control the colonization of microorganisms and reduce deadly diseases. OBJECTIVE: To conduct a systematic review to answer the question: "Does graphene oxide incorporated into polymethylmethacrylate influence its antimicrobial activity?" METHODS: The electronic search was performed in PubMed, Embase, Web of Science, Scopus, and Google Scholar databases, and articles published until October 2021 were selected...
March 12, 2024: European Journal of Prosthodontics and Restorative Dentistry
https://read.qxmd.com/read/38536768/wettability-and-bactericidal-properties-of-bioinspired-zno-nanopillar-surfaces
#3
JOURNAL ARTICLE
Jitao Zhang, Georgia Williams, Thanaphun Jitniyom, Navdeep Sangeet Singh, Alexander Saal, Lily Riordan, Madeline Berrow, James Churm, Manuel Banzhaf, Felicity de Cogan, Nan Gao
Nanomaterials of zinc oxide (ZnO) exhibit antibacterial activities under ambient illumination that result in cell membrane permeability and disorganization, representing an important opportunity for health-related applications. However, the development of antibiofouling surfaces incorporating ZnO nanomaterials has remained limited. In this work, we fabricate superhydrophobic surfaces based on ZnO nanopillars. Water droplets on these superhydrophobic surfaces exhibit small contact angle hysteresis (within 2-3°) and a minimal tilting angle of 1°...
March 27, 2024: Langmuir: the ACS Journal of Surfaces and Colloids
https://read.qxmd.com/read/38536669/extraction-purification-structural-modification-activities-and-application-of-polysaccharides-from-different-parts-of-mulberry
#4
REVIEW
Huilin Wang, Gangliang Huang
The mulberry plant is a member of the Moraceae family and belongs to the Morus genus. Its entire body is a treasure, with mulberries, mulberry leaves, and mulberry branches all suitable for medicinal use. The main active ingredient in mulberries is mulberry polysaccharide. Studies have shown that polysaccharides from different parts of mulberry exhibit antioxidant, antidiabetic, antibacterial, anti-inflammatory, and blood pressure-lowering properties. There are more studies on the biological activities, extraction methods, and structural characterization of polysaccharides from different parts of mulberry...
March 27, 2024: Food & Function
https://read.qxmd.com/read/38536485/green-synthesis-of-copper-nanoparticles-by-using-pineapple-peel-waste-in-vitro-characterizations-and-antibacterial-potential
#5
JOURNAL ARTICLE
Sanchita Mitra, Tarun Kumar Dua, Serina Easmin, Sucheta Sarkar, Arijit Prosad Roy, Ranabir Sahu, Gouranga Nandi, Md Salman Haydar, Swarnendu Roy, Paramita Paul
A considerable amount of fruit waste is being produced every day worldwide. The green synthesis of metal nanoparticles from fruit peel waste can be an innovative, cost-effective, and eco-friendly alternative to traditional methods. Copper nanoparticles (CuNPs) were synthesized by a green method using the pineapple peels extract (PLX) and copper sulfate pentahydrate. The formation of CuNPs was visually identified and detected by UV-Visible spectroscopy. The CuNPs were characterized by Fourier-transform infrared (FTIR) spectroscopy, particle size analyzer, scanning electron microscopy (SEM), and X-ray diffraction (XRD)...
March 27, 2024: Bioprocess and Biosystems Engineering
https://read.qxmd.com/read/38535983/nutritional-profiling-fiber-content-and-in-vitro-bioactivities-of-wheat-based-biscuits-formulated-with-novel-ingredients
#6
JOURNAL ARTICLE
Marta Mesias, Francisco J Morales, Cristina Caleja, Tânia C S P Pires, Ricardo C Calhelha, Lillian Barros, Eliana Pereira
This study evaluated the nutritional profile and fiber content of innovative formulations of wheat-based biscuits enriched with chia seeds, carob flour and coconut sugar. The in vitro antioxidant, cytotoxic, anti-inflammatory and antimicrobial activities were also investigated to understand the potential health advantages of the incorporation of these new ingredients. The novel biscuits demonstrated significant improvements in protein and mineral content, with increases of 50% and 100% in chia biscuits, and up to 20% and 40% in carob biscuits, respectively...
March 27, 2024: Food & Function
https://read.qxmd.com/read/38535835/use-of-monoglycerides-and-diglycerides-to-mitigate-poultry-production-losses-a-review
#7
REVIEW
Stacie R Appleton, Anne Ballou, Kevin L Watkins
Consumer preference dictates not only what food is consumed but also how that food is produced. Ingredients in livestock feed that are not antibiotics, not genetically modified, and not of animal origin but that are nutrient-like tend to be more acceptable to consumers, retailers, and producers. Mono- and diglycerides (MDG) fit these criteria, are commonly used in food, and are generally recognized as safe. But beyond being emulsifiers and a source of energy, MDG are also known to have antimicrobial, immune, and microbiome modulation and angiogenic activity...
February 27, 2024: Veterinary Sciences
https://read.qxmd.com/read/38535476/study-on-the-anti-mycobacterium-marinum-activity-of-a-series-of-marine-derived-14-membered-resorcylic-acid-lactone-derivatives
#8
JOURNAL ARTICLE
Qian-Qian Jing, Jun-Na Yin, Ya-Jie Cheng, Qun Zhang, Xi-Zhen Cao, Wei-Feng Xu, Chang-Lun Shao, Mei-Yan Wei
With the emergence of drug-resistant strains, the treatment of tuberculosis (TB) is becoming more difficult and there is an urgent need to find new anti-TB drugs. Mycobacterium marinum , as a model organism of Mycobacterium tuberculosis , can be used for the rapid and efficient screening of bioactive compounds. The 14-membered resorcylic acid lactones (RALs) have a wide range of bioactivities such as antibacterial, antifouling and antimalarial activity. In order to further study their bioactivities, we initially constructed a 14-membered RALs library, which contains 16 new derivatives...
March 16, 2024: Marine Drugs
https://read.qxmd.com/read/38535459/new-phenol-derivatives-from-the-haima-cold-seep-derived-fungus-aspergillus-subversicolor-cyh-17
#9
JOURNAL ARTICLE
Yi-Hao Che, Wen-Ping Ding, Zhi-Hui Xiao, Jia-Min Wu, Hao Yin, Fa-Zuo Wang, Si Zhang
Seven new phenol derivatives, subversins A-E ( 1 - 5 ), subversic acid A ( 6 ) and epi -wortmannine G ( 7 ); one new natural product, 4-hydroxy-7-methoxyphthalide ( 8 ); and five known compounds ( 9 - 13 ) were isolated from the fungus Aspergillus subversicolor CYH-17 collected from the Haima cold seep. The structures and absolute configurations of these compounds were determined via NMR, MS, optical rotation, electronic circular dichroism (ECD) calculation, X-ray diffraction analysis and comparison with the literature...
February 29, 2024: Marine Drugs
https://read.qxmd.com/read/38535266/antibacterial-and-antibiofouling-activities-of-carbon-polymerized-dots-polyurethane-and-c-60-polyurethane-composite-films
#10
JOURNAL ARTICLE
Zoran M Marković, Milica D Budimir Filimonović, Dušan D Milivojević, Janez Kovač, Biljana M Todorović Marković
The cost of treatment of antibiotic-resistant pathogens is on the level of tens of billions of dollars at the moment. It is of special interest to reduce or solve this problem using antimicrobial coatings, especially in hospitals or other healthcare facilities. The bacteria can transfer from medical staff or contaminated surfaces to patients. In this paper, we focused our attention on the antibacterial and antibiofouling activities of two types of photodynamic polyurethane composite films doped with carbon polymerized dots (CPDs) and fullerene C60 ...
March 17, 2024: Journal of Functional Biomaterials
https://read.qxmd.com/read/38535257/the-potential-teeth-bleaching-and-halitosis-prevention-effects-of-pediococcus-inopinatus-thk-30-a-kimchi-derived-lactic-acid-bacterium-in-vitro-study
#11
JOURNAL ARTICLE
Trang Thi Minh Nguyen, Qiwen Zheng, Eun-Ji Yi, Arce Defeo Bellere, Xiangji Jin, Hong-Yong Kim, Tae-Hoo Yi
BACKGROUND: Recent developments in addressing dental aesthetic concerns, encompassing issues like teeth discoloration and halitosis, underscore the demand for safer alternative solutions. PURPOSE: This study aims to confirm the effects of lactic acid bacteria (LAB) from kimchi on artificial teeth bleaching and their potential impact in terms of preventing halitosis-related bacteria. MATERIALS AND METHODS: To evaluate the antimicrobial effects against oral pathogens, disc diffusion tests and broth microdilution methods were used...
March 7, 2024: Journal of Functional Biomaterials
https://read.qxmd.com/read/38535256/water-soluble-quaternary-and-protonable-basic-chitotriazolans-synthesis-by-click-chemistry-conversion-of-chitosan-azides-and-investigation-of-antibacterial-activity
#12
JOURNAL ARTICLE
Sankar Rathinam, Romano Magdadaro, Martha Á Hjálmarsdóttir, Már Másson
The azide transfer reaction and copper(I)-catalyzed alkyne-azide cycloaddition (CuAAC) can be used to convert the amino groups in chitosan to triazole 1,2,3-moieties. The resulting polymer has been named chitotriazolan. This synthesis was performed with six different quaternary ammonium alkynes and three amine alkynes to obtain a series of nine water-soluble chitotriazolan derivatives. The structure and complete conversion of the azide were confirmed by FT-IR and proton NMR spectroscopy. The derivatives were investigated for antibacterial activity against S...
March 5, 2024: Journal of Functional Biomaterials
https://read.qxmd.com/read/38535245/influence-of-hybrid-surface-modification-on-biocompatibility-and-physicochemical-properties-of-ti-6al-4v-eli-titanium
#13
JOURNAL ARTICLE
Anna Woźniak, Weronika Smok, Janusz Szewczenko, Marcin Staszuk, Grzegorz Chladek
Titanium-based materials are the most widely used materials in biomedical applications. However, according to literature findings, the degradation products of titanium have been associated with potential allergic reactions, inflammation, and bone resorption. The corrosion process of Ti-6Al-4V in the human body environment may be exacerbated by factors such as reduced pH levels and elevated concentrations of chloride compounds. Coatings made of biopolymers are gaining attention as they offer numerous advantages for enhancing implant functionality, including improved biocompatibility, bioactivity, wettability, drug release, and antibacterial activity...
February 20, 2024: Journal of Functional Biomaterials
https://read.qxmd.com/read/38534916/optimization-of-aqueous-extraction-of-polyphenols-from-cuminum-cyminum-seeds-using-response-surface-methodology-and-assessment-of-biological-activity
#14
JOURNAL ARTICLE
Hana El Tannir, Diana Houhou, Espérance Debs, Mohamed Koubaa, Adla Jammoul, Bilal Azakir, Mahmoud I Khalil, Nada El Darra, Nicolas Louka
(1) Background: Cumin seeds, extracted from the plant Cuminum cyminum , are abundant in phenolic compounds and have been extensively researched for their chemical makeup and biological effects. The objective of this research is to enhance the water extraction of polyphenols through the water bath (WB) technique and to evaluate the antiradical, antibacterial, and anticancer effects of the extract. (2) Methods: Response Surface Methodology was used to find the best parameters to extract polyphenols. Three experimental parameters, time, temperature, and solid-liquid ratio, were tested...
March 21, 2024: BioTech (Basel)
https://read.qxmd.com/read/38534915/effect-of-chitosan-degradation-products-glucosamine-and-chitosan-oligosaccharide-on-osteoclastic-differentiation
#15
JOURNAL ARTICLE
Tomoharu Takeuchi, Midori Oyama, Tomomi Hatanaka
Chitosan, a natural cationic polysaccharide derived from crustaceans and shellfish shells, is known for its advantageous biological properties, including biodegradability, biocompatibility, and antibacterial activity. Chitosan and its composite materials are studied for their potential for bone tissue repair. However, the effects of chitosan degradation products, glucosamine (GlcN) and chitosan oligosaccharide (COS), on osteoclasts remain unclear. If these chitosan degradation products promote osteoclastic differentiation, careful consideration is required for the use of chitosan and related materials in bone repair applications...
March 6, 2024: BioTech (Basel)
https://read.qxmd.com/read/38534753/study-on-chemical-composition-and-biological-activity-of-psidium-guajava-leaf-extracts
#16
JOURNAL ARTICLE
Hyonam Park, Bohee Kim, Yuri Kang, Woonjung Kim
Guava ( Psidium guajava ) is a plant widely distributed in tropical and subtropical regions. Its leaves contain a large amount of physiological molecules such as flavonoid, sesquiterpene, triterpenoid, coumarin, alkaloid, and tannin molecules with antioxidative and anti-inflammatory effects. In this study, the use of concentrated P . guajava leaf extract molecules as a functional natural material was evaluated by confirming the extract's antioxidative, antibacterial, tyrosinase activity inhibition, and collagenase activity inhibition effects and its trans-2-nonenal removal ability...
March 6, 2024: Current Issues in Molecular Biology
https://read.qxmd.com/read/38534706/antimicrobial-action-mechanisms-of-natural-compounds-isolated-from-endophytic-microorganisms
#17
REVIEW
Farkhod Eshboev, Nilufar Mamadalieva, Pavel A Nazarov, Hidayat Hussain, Vladimir Katanaev, Dilfuza Egamberdieva, Shakhnoz Azimova
Infectious diseases are a significant challenge to global healthcare, especially in the face of increasing antibiotic resistance. This urgent issue requires the continuous exploration and development of new antimicrobial drugs. In this regard, the secondary metabolites derived from endophytic microorganisms stand out as promising sources for finding antimicrobials. Endophytic microorganisms, residing within the internal tissues of plants, have demonstrated the capacity to produce diverse bioactive compounds with substantial pharmacological potential...
March 18, 2024: Antibiotics
https://read.qxmd.com/read/38534690/chestnut-honey-is-effective-against-mixed-biofilms-at-different-stages-of-maturity
#18
JOURNAL ARTICLE
Regina Koloh, Viktória L Balázs, Lilla Nagy-Radványi, Béla Kocsis, Erika Beáta Kerekes, Marianna Kocsis, Ágnes Farkas
The irresponsible overuse of antibiotics has increased the occurrence of resistant bacterial strains, which represents one of the biggest patient safety risks today. Due to antibiotic resistance and biofilm formation in bacteria, it is becoming increasingly difficult to suppress the bacterial strains responsible for various chronic infections. Honey was proven to inhibit bacterial growth and biofilm development, offering an alternative solution in the treatment of resistant infections and chronic wounds. Our studies included chestnut honey, valued for its high antibacterial activity, and the bacteria Pseudomonas aeruginosa , methicillin-resistant Staphylococcus aureus , and S...
March 13, 2024: Antibiotics
https://read.qxmd.com/read/38534687/navigating-the-chemical-space-of-enr-inhibitors-a-comprehensive-analysis
#19
JOURNAL ARTICLE
Vid Kuralt, Rok Frlan
Antimicrobial resistance is a global health threat that requires innovative strategies against drug-resistant bacteria. Our study focuses on enoyl-acyl carrier protein reductases (ENRs), in particular FabI, FabK, FabV, and InhA, as potential antimicrobial agents. Despite their promising potential, the lack of clinical approvals for inhibitors such as triclosan and isoniazid underscores the challenges in achieving preclinical success. In our study, we curated and analyzed a dataset of 1412 small molecules recognized as ENR inhibitors, investigating different structural variants...
March 11, 2024: Antibiotics
https://read.qxmd.com/read/38534686/antimicrobial-properties-of-colostrum-and-milk
#20
REVIEW
Furkan Eker, Emir Akdaşçi, Hatice Duman, Yalçın Mert Yalçıntaş, Ahmet Alperen Canbolat, Arda Erkan Kalkan, Sercan Karav, Dunja Šamec
The growing number of antibiotic resistance genes is putting a strain on the ecosystem and harming human health. In addition, consumers have developed a cautious attitude towards chemical preservatives. Colostrum and milk are excellent sources of antibacterial components that help to strengthen the immunity of the offspring and accelerate the maturation of the immune system. It is possible to study these important defenses of milk and colostrum, such as lactoferrin, lysozyme, immunoglobulins, oligosaccharides, etc...
March 11, 2024: Antibiotics
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