Results 111 to 120 of about 10,101 (282)

First Steps towards Parameter Optimization of Bioelectrochemical Systems using a Microsystems Engineering Approach

open access: yes, 2011
There is a growing interest in exploiting bioelectrochemical systems (BESs), such as microbial fuel cells, as an alternative energy source for sustainable living.
Angenent, Largus   +4 more
core  

Studies on Phenazines. XIX. Synthesis of Phenazine-carboxylic Acids.

open access: yesChemical and Pharmaceutical Bulletin, 1959
By oxidation with chromium trioxide in the presence of conc. sulfuric acid at about 5∼15°, 6-hydroxyphenazine-1- and 9-hydroxyphenazine-2-carboxylic acids were obtained from their respective methylphenazine derivatives.
openaire   +2 more sources

Hyperthermia‐induced cytotoxicity and modulation of PD‐L1 and MHC‐I expression in human non‐small cell lung cancer cell lines

open access: yesExperimental Physiology, EarlyView.
Abstract Hyperthermia has recently been applied to treat human non‐small cell lung cancer (NSCLC). However, the mechanisms underlying cytotoxic sensitivity of NSCLC cells to hyperthermia are not fully understood. In this study, five NSCLC cell lines with different epidermal growth factor receptor (EGFR), Kirsten rat sarcoma and tumor protein p53 ...
Yun‐Chieh Tu   +10 more
wiley   +1 more source

Electrochemical Detection of Thrombin Activity Using an Electrogenic Substrate: Toward Rapid Coagulation Monitoring

open access: yesChemElectroChem, Volume 13, Issue 9, 5 May 2026.
Measuring thrombin activity provides critical information about coagulation health. A voltammetry technique was developed to monitor thrombin activity rapidly on a screen‐printed gold electrode. Thrombin selectively cleaves the bond between para‐nitroaniline (pNA) and a tri‐peptide substrate. pNA cleavage is monitored electrochemically by measuring its
Sina Ardalan, Anna Ignaszak
wiley   +1 more source

Synthesis of a π‐Extended Phenazine Diimide Derivative and Characterization of Its Closed‐Shell Reduced States

open access: yesChemistry – A European Journal, Volume 32, Issue 17, 5 May 2026.
In this work, the synthesis and characterization of novel π‐extended phenazine diimides is reported. The derivatives undergo differential reduction to a dihydrophenazine or Meisenheimer form depending on the reaction conditions employed. The outcome of this work highlights the paramount importance of structural design in determining the nature of the ...
Francesco Rigodanza   +7 more
wiley   +1 more source

Synthesis of Benzopyranophenazines via Isocyanide-Based Three-Component Reactions

open access: yesE-Journal of Chemistry, 2012
Benzo[a]pyrano[2,3-c]phenazines were synthesized in good yields by a three-component reaction of benzo[a]phenazin-5-oles, isocyanides and dialkyl acetylendicarboxylates In refluxing ethanol.
Ayoob Bazgir, Ali Mohammad Astaraki
doaj   +1 more source

Mechanisms of Mitochondrial Toxicity and Cytotoxicity Caused by Pseudomonas aeruginosa Pyocyanin in Human Nasal Epithelial Cells

open access: yesInternational Forum of Allergy &Rhinology, Volume 16, Issue 5, Page 451-466, May 2026.
ABSTRACT Background Pseudomonas aeruginosa is an opportunistic pathogen in cystic fibrosis‐related chronic rhinosinusitis (CF‐CRS) that produces phenazine metabolites pyocyanin and 1‐hydroxyphenazine (1‐HP), which may have detrimental effects on mitochondria, reactive oxygen species (ROS), Ca2+ signaling, and apoptosis.
Joel C. Thompson   +8 more
wiley   +1 more source

Durable Organic Anode Material With High Mass‐Loading for Proton Batteries

open access: yesCarbon Neutralization, Volume 5, Issue 3, May 2026.
Indanthrone (IDT) was developed as a high‐mass‐loading anode material for durable proton batteries due to the formation of intramolecular hydrogen bonds that locking the rigid fused‐ring structure, enabling an ultra‐stable cycling performance over 20,000 cycles at a high mass loading of 8 mg cm−2.
Ying Sun   +9 more
wiley   +1 more source

Structure and Mechanism of PhdC, a Prenylated‐Flavin Maturase

open access: yesProteins: Structure, Function, and Bioinformatics, Volume 94, Issue 5, Page 1019-1029, May 2026.
ABSTRACT Prenylated flavin mononucleotide (prFMN) is a modified flavin cofactor required by the UbiD family of (de)carboxylase enzymes. While the reduced prFMNH2 form is produced by the flavin prenyltransferase UbiX, the corresponding two‐electron oxidized prFMNiminium form is required to support UbiD catalysis. Thus, oxidative maturation of prFMNH2 is
Dominic R. Whittall   +4 more
wiley   +1 more source

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