Results 91 to 100 of about 75,606 (303)

Synthesis and Characterization of New 1,3,4-Oxadiazole Derivatives from Sulfathiazole [PDF]

open access: yesالمجلة العراقية للصيدلة
Background: Oxadiazole are important heterocyclic compounds in organic chemistry. Methods: In this work, a series of new 1,3,4-oxadiazole moiety started from diazonium salt was synthesized.
Jassim Jassim   +4 more
doaj   +1 more source

Health Hazard Evaluation Report: HETA-81-071-1015: Yellow Springs Instrument Co.; Yellow Springs, Ohio [PDF]

open access: yes
Environmental and personal air samples were analyzed for sodium- azide (26628228) and cyclohexanone (108941) at the Yellow Springs Instrument Company (SIC-3811) in Yellow Springs, Ohio, on June 24, 1981.

core   +1 more source

Light‐Emitting Diodes Based on Metal Halide Perovskite and Perovskite Related Nanocrystals

open access: yesAdvanced Materials, EarlyView.
The review covers the past and current developments in light‐emitting diodes (LEDs) exploiting nanocrystals of halide perovskites and perovskite‐related materials. The review examines the aspects of material optimizations, device engineering, and applications.
Ying Liu   +7 more
wiley   +1 more source

Highly Active and Reusable Cu/C Catalyst for Synthesis of 5-Substituted 1H-Tetrazoles Starting from Aromatic Aldehydes

open access: yesActa Chimica Slovenica, 2020
A new, efficient and convenient method for the synthesis of 5-substituted 1H-tetrazole derivatives with a wide range of substituents in good to excellent yields has been developed.
Reza Khalifeh   +2 more
doaj   +1 more source

An improved novel process for the synthesis of antihypertensive drug, Irbesartan [PDF]

open access: yes, 2014
In general 5-substituted tetrazoles were prepared through the reactions of sodium azide with nitriles in an aromatic solvent in the presence of an amine salt. The present work describes process for the preparation of the 2-butyl-3-[[2’-(1H-tetrazol-5-yl)
Joshi, Narendra   +2 more
core  

Simultaneous production of nitric oxide and peroxynitrite by plant nitrate reductase: in vitro evidence for the NR-dependent formation of active nitrogen species [PDF]

open access: yes, 2000
We examined the ability of plant nitrate reductase (NR) to produce nitric oxide (NO) using in vitro assays. Electrochemical and fluorometric measurements both showed that NO is produced by corn NR in the presence of nitrite and NADH at pH 7.
Sakihama, Yasuko, Yamasaki, Hideo
core   +1 more source

Cardiac Organoid Model Inspired Micro‐Robot Smart Patch to Treat Myocardial Infarction

open access: yesAdvanced Materials, EarlyView.
The heart organoid model exhibits the acidic microenvironment characteristic of myocardial infarction, which emerges as a pivotal force propelling the movement of micro‐robots. These micro‐robots, administered through microneedles, can penetrate deep into the tissue, effectively delivering therapeutic payloads to facilitate heart repair.
Fangfang Wang   +12 more
wiley   +1 more source

Nitrene Transfer Catalyzed by a Non-Heme Iron Enzyme and Enhanced by Non-Native Small-Molecule Cofactors [PDF]

open access: yes, 2019
Transition-metal catalysis is a powerful tool for the construction of chemical bonds. Here we show that a non-heme iron enzyme can catalyze olefin aziridination and nitrene C–H insertion, and that these activities can be improved by directed evolution ...
Arnold, Frances H.   +3 more
core  

On the mechanism of Candida tropicalis biofilm reduction by the combined action of naturally-occurring anthraquinones and blue light [PDF]

open access: yes, 2017
The photoprocesses involved in the photo-induced Candida tropicalis biofilm reduction by two natural anthraquinones (AQs), rubiadin (1) and rubiadin-1-methyl ether (2), were examined.Production of singlet oxygen (1O2) and of superoxide radical anion (O2·−
Agut, Montserrat   +7 more
core   +2 more sources

Off‐The‐Shelf Multivalent Nanoconjugate Cancer Vaccine Rescues Host Immune Response against Melanoma

open access: yesAdvanced Materials, Volume 37, Issue 16, April 23, 2025.
A star‐shaped cross‐linked polyglutamate (StCl) nanocarrier delivers melanoma‐associated peptide antigens via redox‐responsive linkers, inducing lymph node‐targeted antigen presentation. The nanoconjugate activates dendritic cells, promotes effector T‐cell responses, and enables tumor regression even in humanized patient‐derived preclinical models ...
Liane IF Moura   +19 more
wiley   +1 more source

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