Results 31 to 40 of about 185,877 (187)

Recent advances in chiral organic room‐temperature phosphorescence with circularly polarized luminescence

open access: yesFlexMat, EarlyView.
This review systematically summarizes representative recent advances in organic circularly polarized room‐temperature phosphorescence materials toward optoelectronic and information security applications. Abstract Circularly polarized room‐temperature phosphorescence (CPRTP) materials combine the dual advantages of long‐lived triplet emission and ...
Liang Zhang   +2 more
wiley   +1 more source

Synthesis of Heterocyclic-Substituted Novel Hydroxysteroids with Regioselective and Stereoselective Reactions

open access: yes, 2018
Polyhydroxy steroids bearing the 3,5,6-trihydroxy pattern were synthesized from different heterocyclic-substituted unsaturated steroid by an easy and simple method with high yields.
Emine İpek   +7 more
core   +1 more source

A pd‐Catalyzed Three‐Component Approach for the Synthesis of Monomeric and Dimeric Tetrahydro‐4H‐Furo[2,3‐b]Chromene Steroids

open access: yesJournal of Heterocyclic Chemistry, EarlyView.
The three‐component reaction of a steroid bearing a dihydrofuran ring, with methyl orthoformate and salicylaldehyde produced chromanketals. ABSTRACT The three‐component reaction of a steroid bearing a dihydrofuran ring, with methyl orthoformate and salicylaldehyde produced chromanketals through a [4 + 2] inverse electron demand cycloaddition ...
Juan E. Hernández‐Martínez   +5 more
wiley   +1 more source

Adaptive Hydrogenation of Alkynes Using CO as a Molecular Trigger to Selectively Produce Alkanes or Z‐Alkenes

open access: yesAngewandte Chemie, Volume 138, Issue 44, 26 October 2026.
One catalyst for two products: CO acts as a molecular trigger for adaptive alkyne hydrogenation using supported Pd nanoparticles. The catalyst reversibly switches between the formation of alkanes under H2 and Z‐alkenes under H2/CO for 37 structurally diverse alkynes.
Manisha Durai   +7 more
wiley   +2 more sources

From nature to nanoscale: advances, challenges, and preclinical translation of nanofiber drug delivery systems containing plant‐derived active ingredients

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract Since the early 1960s, nanotechnology has been a critical area of science, allowing for the development of sophisticated nanomaterials. Nanofibers, one of the most widely used nanotechnological drug delivery systems, have emerged as a highly versatile platform within modern pharmaceutical sciences.
Heybet Kerem Polat   +7 more
wiley   +1 more source

Heterocyclic Chemistry

open access: yes, 2014
The functionalisation of fullerene, carbon nanotubes and graphene, to form heterocyclic derivatives is described, demonstrating the fundamental role of heterocyclic chemistry in the fast growing area of materials ...
Fedeli, Stefano   +5 more
core   +1 more source

Silver nanoparticles biogenically synthesised using Maclurodendron porteri extract and their bioactivities

open access: yesHeliyon
Silver nanoparticle is widely used in various field including medical, cosmetic, food and industrial purposes due to their unique properties in electrical conductivity, thermal, and biological activities. In the medical field, silver nanoparticles (AgNPs)
Nadhirah Badrillah   +6 more
doaj   +1 more source

Advancing Therapies for Mycobacterial Diseases: From Small Molecules to Host‐Directed Strategies

open access: yesMedicinal Research Reviews, EarlyView.
ABSTRACT The global burden of multidrug‐resistant tuberculosis (MDR‐TB) and the rising incidence of nontuberculous mycobacterial (NTM) infections highlight the urgent need for innovative therapeutic strategies. Current treatments are prolonged, toxic, and increasingly compromised by resistance and limited diagnostic capacity.
Tânia Silva   +23 more
wiley   +1 more source

Ruta graveolens L. in Evidence‐Based Phytotherapy: Pharmacological Activities, Bioactive Compounds and Safety

open access: yesPhytotherapy Research, EarlyView.
Graphical representation of ethnomedical uses, major bioactive compounds, pharmacological potential and toxicological risks of Ruta graveolens L. ABSTRACT Ruta graveolens L. is widely used in traditional European, Asian, African, and South American medicine for digestive, nervous, cardiovascular, respiratory, and reproductive disorders.
Tetiana Serhiienko   +3 more
wiley   +1 more source

GENERAL AND SELECTIVE ISOLATION PROCEDURES FOR GC/MS ANALYSIS OF STEROIDS IN TISSUES AND BODY FLUIDS

open access: yes, 1979
Methods for isolation of steroids by filtration procedures are reviewed. Biological fluids or extracts are filtered through a series of small columns which retain either the steroids or unwanted material.
AXELSON, M   +3 more
core   +1 more source

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