Results 171 to 180 of about 543,044 (334)

Technology and Biological Weapons: Future Threats [PDF]

open access: yes, 2004
Ye
Davison, N., Millett, P., Nixdorff, K.
core  

Emergence of Staphylococcus aureus Resistance to Antimicrobial Peptides Nisin, NZ2114 and Bacitracin Involves Multiple Phenotypic Changes

open access: yesAnimal Research and One Health, EarlyView.
The AMP‐induced mutant Staphylococcus aureus strain nzR showed increased resistance, five gene mutations, and decreased surface anion levels. AMPs affect the NDH‐2 protein encoded by ndh gene inhibiting the growth of S. aureus. The deletion of the ndh gene promotes the development of AMPs resistance.
Lingyu Xiao   +12 more
wiley   +1 more source

Design and Synthesis of Triazole‐Based p‐tert‐Butylcalix[4]Arene Conjugates and Evaluation of Their Antimicrobial, Antibiofilm, and Anti‐Quorum‐Sensing Activities

open access: yesBiotechnology and Applied Biochemistry, EarlyView.
ABSTRACT Macrocyclic calix[n]arenes have many applications, with diverse structures that can easily be functionalized either on upper or lower rims, mostly to impart solubility and improve biological activities. In this study, triazole‐based p‐tert‐butylcalix[4]arene conjugates (AT10a and AT10b) and their p‐tert‐butylphenol analogs (AT10b and AT11b ...
Alfred Ngenge Tamfu   +2 more
wiley   +1 more source

Micro/nanorobots for detecting and eliminating biological and chemical warfare agents

open access: yesBMEMat, EarlyView.
Fuel‐powered and field‐driven micro/nanorobots provide a cutting‐edge platform to safeguard national security and defense. This review reports the latest research progress in micro/nanorobots in sensing and detoxifying biological and chemical warfare agents.
Song Li   +4 more
wiley   +1 more source

Breaking barriers: the cGAS‐STING pathway as a novel frontier in cancer immunotherapy

open access: yesCancer Communications, EarlyView.
Abstract Since its discovery, the cyclic GMP‐AMP synthase (cGAS)‐stimulator of the interferon gene (STING) signaling pathway has been considered a pivotal component of innate immunity and a promising target for cancer immunotherapy. Beyond its canonical role in pathogen defense, accumulating evidence has demonstrated that the cGAS‐STING pathway ...
Yuheng Yan   +5 more
wiley   +1 more source

Exploring Bioactive Metabolites From Fusarium falciforme and Aspergillus terreus Isolated From Protease‐Rich Fruits: Antifungal, Antitrypanosomal, and Enzymatic Inhibitory Activities

open access: yesChemistry &Biodiversity, EarlyView.
Metabolites from fungi isolated from protease rich‐fruits displayed antifungal, antitrypanosomal and enzymatic inhibitory activities. ABSTRACT Fungal secondary metabolites display remarkable chemical diversity and biological potential, with applications in agriculture and pharmaceuticals. This study isolated and characterized bioactive metabolites from
Gabriela de Oliveira Almeida   +8 more
wiley   +1 more source

First Report on some N2O2‐Donor Sets Tetradentate Schiff Base and Its Metal Complexes: Characterization and Antimicrobial Investigation

open access: yesChemistry &Biodiversity, EarlyView.
Mass spectrometry, UV‐Vis. spectra, thermal analysis and antimicrobial evaluation were done for a novel tetradentate Schiff base ligand (H2L) and its metal complexes. ABSTRACT The new Schiff base ligand N,N′‐thiophene‐(bis‐1‐ethyl‐6,8‐difluoro‐7‐(3‐methylpiperazin‐1‐yl)‐4‐oxo‐1,4‐dihydroquinoline‐3‐carboxylic acid) (H2L) was synthesized via ...
Amira A. Mohamed   +3 more
wiley   +1 more source

Co‐cultivation and Medium Optimization: A Strategy for Discovering Fungal‐derived Protease Inhibitors

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT The fungi Fusarium guttiforme and Phytophthora palmivora were cultivated in four different media (Potato Dextrose Agar, Czapek, rice, and ISP2) and co‐cultured to stimulate fungal interactions and enhance secondary metabolite production. Promising extracts were fractionated, yielding compounds such as the iron complex of fusaric acid (1 ...
Vitor de Souza Mazucato   +7 more
wiley   +1 more source

Plinia cauliflora Leaf Extract Promotes Wound Healing Through Anti‐Inflammatory, Antioxidant, and Antibacterial Actions

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT Plinia cauliflora (DC.) Kausel (jabuticaba) is traditionally used by Brazilian indigenous communities for therapeutic purposes, including the treatment of wounds and inflammation. This study investigated the phytochemical composition and biological activities of an ethanolic extract derived from P.
Priscila de Lima Paula   +17 more
wiley   +1 more source

Fungal Biodiversity From the Atlantic Forest With Bioactive Metabolites Against Cutaneous Leishmaniasis

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT Biodiversity offers a rich source of bioactive compounds for drug discovery. We isolated Aspergillus fumigatus from compost in the Atlantic Forest and found its extract active against Leishmania (Leishmania) amazonensis. Two crude extracts, I06 and I75, were selected for further study.
Juliana Cristina Pereira Calado   +11 more
wiley   +1 more source

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