Results 81 to 90 of about 5,409,859 (340)

Self‐Cascade Catalytic Reaction–Assisted Apoptosis/Calcicoptosis/Ferroptosis Induction with Microsphere‐Aggregated Hydrogels in Triple‐Negative Breast Cancer Therapy

open access: yesAdvanced Functional Materials, EarlyView.
Hyaluronic acid‐dopamine‐based intra‐crosslinked microsphere including cisplatin (HPC MS) is fabricated by spray‐drying and calcium/iron ions are introduced for interparticle crosslinking. Designed microsphere‐aggregated hydrogel (MAH) system including cisplatin/CaO2/FeSO4 can provide apoptosis/calcicoptosis/ferroptosis‐mediated chemo/cascade ...
ChaeRim Hwang   +6 more
wiley   +1 more source

Synthesis of Benzylpenicillin esters and evaluate the change in the anti-bacterial effects by Docking and bacteriological study

open access: yesDiyala Journal of Medicine
Background: Benzylpenicillin is an antibiotic that possesses effectiveness mainly against gram-positive and some gram-negative bacteria. The carboxylic acid of beta-lactam is essential for its antibacterial activity.
Omar Abdulrahman alsheikhly ,   +3 more
doaj   +1 more source

2-Bromopyridine-3-carboxylic acid

open access: yesActa Crystallographica Section E, 2010
The carboxylic acid residue in the title compound, C6H4BrNO2, is twisted out of the plane of the other atoms, as indicated by the (Br)C—C—C—Ocarbonyl torsion angle of −20.1 (9)°.
R. Alan Howie   +4 more
doaj   +1 more source

Catalytic formation of C(sp(3))-F bonds via heterogeneous photocatalysis [PDF]

open access: yes, 2018
Due to their chemical, physical, and biological properties, fluorinated compounds are widely employed throughout society. Yet, despite their critical importance, current methods of introducing fluorine into compounds suffer from severe drawbacks.
Hammond, C, Tarantino, G
core   +3 more sources

Making Photoresponsive Metal–Organic Frameworks an Effective Class of Heterogeneous Photocatalyst

open access: yesAdvanced Functional Materials, EarlyView.
This review summarizes photoresponsive MOFs for photocatalytic applications, focusing on their capacity to enhance light harvesting, charge transfer, and surface reactions. While existing studies provide foundational insights, emerging characterization techniques enable a deeper understanding of photoresponsive MOFs.
Rui Liu   +3 more
wiley   +1 more source

2-Chloroquinoline-3-carboxylic acid

open access: yesActa Crystallographica Section E, 2010
The crystal structure of the title compound, C10H6ClNO2, can be described by two types of crossed layers which are parallel to (110) and (overline{1}10). The crystal packing is stabilized by intermolecular C—H...O and O—H...N hydrogen
Ali Belfaitah   +4 more
doaj   +1 more source

Vitamin K catabolite inhibition of ovariectomy-induced bone loss: Structure–activity relationship considerations [PDF]

open access: yes, 2014
The potential benefit of vitamin K as a therapeutic in osteoporosis is controversial and the vitamin K regimen being used clinically (45 mg/day) employs doses that are many times higher than required to ensure maximal gamma‐carboxylation of the vitamin K‐
Emery, R   +5 more
core   +1 more source

Indoor acids and bases. [PDF]

open access: yes, 2020
Numerous acids and bases influence indoor air quality. The most abundant of these species are CO2 (acidic) and NH3 (basic), both emitted by building occupants. Other prominent inorganic acids are HNO3 , HONO, SO2 , H2 SO4 , HCl, and HOCl.
Nazaroff, William W, Weschler, Charles J
core   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

open access: yesAdvanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer   +12 more
wiley   +1 more source

Synthesis of multifunctional nanoparticles for imaging and enhancement in therapy [PDF]

open access: yes, 2020
The purpose of this work was to synthesize nanoparticles composed of high atomic number elements and semiconductor material in a core/shell structure for the potential to be used as enhancers for radiotherapy as well as luminescence imaging platforms ...
Seymore, Gabrielle
core   +1 more source

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