Results 81 to 90 of about 5,992 (210)

Synthesis and Characterization of Mn(II), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II) Complexes with Hexa azamacrocyclic Ligands Derived from Thiosemicarbazide [PDF]

open access: yesمجلة التربية والعلم, 1970
: Some transition metal (II) complex are synthesized with thiosemicarbazide Ligands L1= dicyclohexen [1,6,7,9,14,15] hexaaza [2,5,10,3] tetra one [8,13] dithiacyclohexadecane and L2= dicyclohexyl [1,6,7,9,14,15] hexaaza [2,5, 10, 13] tetraone [8,13 ...
Saad Dawood
doaj   +1 more source

Photochemical Isomerizations of Thiosemicarbazide, a Matrix Isolation Study

open access: yes, 2016
Two thione conformers of monomeric thiosemicarbazide were trapped from the gas phase into a low-temperature Ar matrix. A phototransformation converting the less stable form of the compound into the most stable conformer was induced by irradiation with ...
Leszek Lapinski (1539088)   +3 more
core   +1 more source

Occupational Exposure to Factory‐Derived Particulate Matter 2.5 Induces Cutaneous Toxicity in Workers and HaCaT Keratinocytes Through Oxidative Stress and Inflammation

open access: yesJournal of Applied Toxicology, Volume 46, Issue 6, Page 2145-2157, June 2026.
ABSTRACT This study aimed to evaluate the toxicological effects of occupational exposure to factory‐derived particulate matter (PM2.5) on human skin, emphasizing its role as a potential target organ of environmental toxicants. An epidemiological survey comparing factory and nonfactory workers was conducted by assessing their skin elasticity and color ...
Miku Tanaka   +7 more
wiley   +1 more source

Growth and characterization of thiosemicarbazide hydrochloride: A semiorganic NLO material

open access: yes, 2011
Thiosemicarbazide hydrochloride (TSCHCL) was synthesized by mixing thiosemicarbazide and hydrochloride in 1:1 molar ratio in double distilled water. Single crystals of TSCHCL were grown by slow evaporation at room temperature and were characterized by ...
Ramamurthi, K.   +11 more
core   +1 more source

1-(Biphenyl-4-ylmethylidene)thiosemicarbazide monohydrate [PDF]

open access: yes, 2010
In the title compound, C14H13N3S·H2O, the thiosemicarbazide group is nearly planar, with a maximum deviation of 0.072 (2) Å from the ideal least-squares plane, and shows an E conformation. In the crystal packing, the
Laura Menéndez-Taboada   +10 more
core   +1 more source

Urea provides an important nitrogen source for microbial populations in an ultraoligotrophic sea

open access: yesLimnology and Oceanography, Volume 71, Issue 6, June 2026.
Urea is an organic nitrogen (N) compound directly utilized by both heterotrophic prokaryotes and some photoautotrophs. Reports of either ambient urea concentrations or urea uptake rates from the ultraoligotrophic eastern Mediterranean Sea are lacking. We investigated urea distribution and uptake in the upper water column in the Levantine basin during ...
Alon Blachinsky   +7 more
wiley   +1 more source

Synthesis and Antimicrobial Activity of Some Derivatives on the Basis (7-hydroxy-2-oxo-2H-chromen-4-yl)-acetic Acid Hydrazide

open access: yesMolecules, 2006
(7-Hydroxy-2-oxo-2H-chromen-4-yl)-acetic acid hydrazide (2) was prepared from (7-hydroxy-2-oxo-2H-chromen-4-yl)-acetic acid ethyl ester (1) and 100% hydrazine hydrate.
Elizabeth Has-Schon   +3 more
doaj   +1 more source

Platinum(II), palladium(II) and gold(III) complexes containing 1,1,4-trisubstituted thiosemicarbazide dianion ligands [PDF]

open access: yes, 2003
Reactions of cis-[PtCl₂(PPh₃)₂] or [PdCl₂(PPh₃)₂] with Ph₂N---NHC(S)NHPh and excess triethylamine, in refluxing methanol gave the complexes [M{SC(=NPh)NNPh₂}(PPh₃)₂] containing thiosemicarbazide dianion ligands.
Rickard, Clifton E.F.   +1 more
core   +1 more source

Nanoparticle‐Based Strategies to Combat Multidrug‐Resistant Bacteria: Mechanisms, Applications, and Future Perspectives

open access: yesMicrobiologyOpen, Volume 15, Issue 3, June 2026.
Nanobiotics offer a promising strategy to combat antimicrobial resistance (AMR) and multidrug‐resistant (MDR) bacteria. Nanoparticles overcome traditional resistance mechanisms through unique physicochemical properties and multivalent interactions.
Akmal Zubair   +3 more
wiley   +1 more source

Design of a Thiosemicarbazide-Functionalized Calix[4]arene Ligand and Related Transition Metal Complexes: Synthesis, Characterization, and Biological Studies

open access: yesFrontiers in Chemistry, 2019
In this study, we synthesized a new thiosemicarbazide-functionalized calix[4]arene L and its Co2+, Ni2+, Cu2+, and Zn2+ transition metal complexes. For characterization several techniques were employed: Fourier-transform infrared (FT-IR), 1H nuclear ...
Ehsan Bahojb Noruzi   +7 more
doaj   +1 more source

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