Results 111 to 120 of about 804,249 (288)

Unveiling Aggregation‐Induced Singlet Fission in Push–Pull Diketopyrrolopyrrole Water Dispersed Nanoaggregates and Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Aggregates of diketopyrrolopyrrole dipolar and quadrupolar systems exhibit panchromatic absorption spectra extending in the entire visible range. Upon aggregation in water and in the solid state, their fluorescence is almost completely quenched and their singlet excited state lifetime is significantly shortened.
Roberto Cantoni   +10 more
wiley   +1 more source

Reconfigurable Magnetic Soft Microrobot for Acoustically Triggered Targeted Bacterial Sterilization

open access: yesAdvanced Functional Materials, EarlyView.
Reconfigurable magnetic soft microrobots integrate in situ‐grown piezoelectric zinc oxide nanorods that produce reactive oxygen species upon acoustic excitation. Combining magnetically guided transport with thermally induced planar reconfiguration, the microrobots achieve targeted delivery and enhanced bacterial sterilization through efficient on ...
Quan Gao   +12 more
wiley   +1 more source

Bimetallic Nanoreactor Activates cGAS‐STING Pathway via mtDNA Release for Cancer Metalloimmunotherapy

open access: yesAdvanced Functional Materials, EarlyView.
A bimetallic Mn–Ca nanoreactor (MCC) is developed as a non‐nucleotide STING nanoagonist for cancer metalloimmunotherapy. MCC induces Ca2+ overload and hydroxyl radical generation, resulting in mitochondrial damage and mtDNA release. The released mtDNA cooperates with Mn2+ to robustly activate cGAS–STING signaling.
Xin Wang Mo   +7 more
wiley   +1 more source

Isolation of Gram Positive and Gram Negative Organisms from Pus Samples: One Center Study

open access: yesRADS Journal of Biological Research & Applied Science, 2013
The contamination of pus organisms in infected wounds, ears, brain abscesses and post surgical infection is a common problem for many patients which causes great distress in terms of discomfort, delayed healing and significantly increased healthcare cost
Naheed Afshan, Madiha Shahid
doaj  

Comparative study of the physicochemical, antimicrobial and stability properties of silver, copper and zinc nanoparticle soaps

open access: yesDiscover Chemistry
This study presents a comparative evaluation of green-synthesized silver (AgNP), copper (CuNP), and zinc (ZnNP) nanoparticle-based soaps, using a commercial formulation (Soap A) as a benchmark.
Aliyu Shehu   +2 more
doaj   +1 more source

Gram-positive pathogens

open access: yesJournal of Clinical Pathology, 2007
Vincent Fischetti, Richard Novick, Joseph Ferretti, Daniel Portnoy, Julian Rood, Metals Park: ASM Press, 2006, pp 888, $179–95 (hardcover). ISBN 1 55581 343 7, 2nd edition When the journal solicits a book review from you, the e-mail contains the phrase, “as a result of your familiarity with the subject your name has been proposed as a potential author
openaire   +2 more sources

Cefepime monotherapy for the empirical treatment of fever in granulocytopenic cancer patients [PDF]

open access: yes, 2017
In a pilot study, we evaluated the efficacy and the safety of cefepime, a new cephalosporin with extended-spectrum activity against both Gram-positive and Gram-negative bacteria, as empirical monotherapy for 108 febrile episodes in 84 granulocytopenic ...
Aoun, M.   +4 more
core  

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou   +8 more
wiley   +1 more source

Antimicrobial Efficacy of Zinc Oxide Nanoparticles Suspension Against Gram Negative and Gram Positive Bacteria

open access: yesسلامت و محیط, 2012
Background and Objectives: Along with the rapid development of human life, controlling   harmful effects of microorganisms would be unavoidable. The objective of this study was to evaluate antibacterial efficacy of zinc oxide nanoparticles on different ...
Edris Hoseinzadeh   +4 more
doaj  

Mesoporous Carbon Thin Films with Large Mesopores as Model Material for Electrochemical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Mesoporous carbon thin films possessing 70 nm mesopores are prepared on titanium substrates by soft templating of resol resins with a self‐synthesized poly(ethylene oxide)‐block‐poly(hexyl acrylate) block copolymer. A strategy to avoid corrosion of the metal substrate is presented, and the films are extensively characterized in terms of morphology ...
Lysander Q. Wagner   +9 more
wiley   +1 more source

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