Results 71 to 80 of about 13,512 (226)

Influence of Phthalic Acid on the Process of Dendrite Development in Low-Density Polyethylene During Electrical Breakdown

open access: yesEast European Journal of Physics
The presented work presents the results of a study on the effect of small amounts of phthalic acid additives on dendrite formation in low-density polyethene (LDPE).
Sh.A. Zeynalov   +5 more
doaj   +1 more source

o‐Terphenyl‐Based Family of Conjugated Macrocycles: Selective Recognition of Phenylalanine in Water and Interaction With Insulin

open access: yesAngewandte Chemie International Edition, Volume 65, Issue 24, 8 June 2026.
This study presents the synthesis and binding properties of a new family of o‐terphenyl‐based macrocycles, TP[n] (n = 2‐8). The trimer variant efficiently binds phenylalanine in water with a 10‐fold selectivity compared to other amino acids and aromatic neurotransmitters.
Swapnil Ghule   +5 more
wiley   +1 more source

The co-crystal structure of etoricoxib–phthalic acid (1/1), C18H15ClN2O2S·C8H6O4

open access: yesZeitschrift für Kristallographie - New Crystal Structures, 2023
C18H15ClN2O2S·C8H6O4, triclinic, P 1‾ $\overline{1}$ (no. 2), a = 8.4340(17) Å, b = 12.172(2) Å, c = 12.816(3) Å, α = 89.98(3)° $89.98(3){}^{\circ}$ , β = 77.41(3)° $77.41(3){}^{\circ}$ , γ = 72.52(3)° $72.52(3){}^{\circ}$ , V = 1221.7(5) Å3, Z = 2, R ...
Ma Yu-Heng   +5 more
doaj   +1 more source

Hofmann Degradation of Asparagine and Glutamine as an Efficient Approach for the Synthesis of Derivatized Lysine Homologs

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 21, 4 June 2026.
A practical and scalable route to C1 and C2 lysine homologs has been developed using Hofmann degradation of N‐protected L‐asparagine and L‐glutamine as the key step. These short‐tether scaffolds enable efficient synthesis of diverse Fmoc‐protected noncanonical amino acids (ncAAs) bearing donor, acceptor, redox‐active, and fluorescent residues.
Adelaide R. Mashweu   +7 more
wiley   +1 more source

A method based on precolumn derivatization and ultra high performance liquid chromatography with high-resolution mass spectrometry for the simultaneous determination of phthalimide and phthalic acid in tea.

open access: yesJournal of Separation Science, 2019
Phthalimide can be formed from either the degradation of folpet and phosmet, or reaction of phthalic anhydride with primary amino groups. Consequently, the sum of phthalimide and folpet, expressed as folpet-residue definition, is highly prone to false ...
Guanwei Gao   +5 more
semanticscholar   +1 more source

Effect of MEHP on testosterone synthesis via Sirt1/Foxo1/Rab7 signaling pathway inhibition of lipophagy in TM3 cells

open access: yesEcotoxicology and Environmental Safety
Mono-2-ethylhexyl phthalic acid (MEHP) is the most toxic metabolite of the plasticizer di-2-ethylhexyl phthalic acid (DEHP), and studies have shown that MEHP causes serious reproductive effects. However, its exact mechanisms of action remain elusive.
Yu Hao   +5 more
doaj   +1 more source

Erasable FAP Targeted Spray‐On Probe for Fluorescence‐Guided Surgery

open access: yesAdvanced Science, Volume 13, Issue 32, 9 June 2026.
We present the first erasable spray‐on probe for fluorescence‐guided surgery. Following topical delivery, FAP‐FLASH550 targets fibroblast activation protein–expressing stromal cells, delineating tumor margins with high tumor‐to‐background ratios. A 365 nm UV light pulse rapidly erases fluorescent signals through triazene photodegradation and subsequent
Zachary Rabinowitz   +2 more
wiley   +1 more source

Recovery of phthalic acid

open access: yes, 1957
Crude phthalic acid from the fusion processing of alkyd resins was found to be recoverable by solvent extraction, neutralization-acidification, sublimation, distillation, esterificatton with monohydric alcohols, ion exchange or alkyd resin preparation ...
Roberts, George Thomas
core  

Isolation of chemical constituents from Nonomuraea species: In vitro and in silico evaluation of its antibacterial properties

open access: yesBeni-Suef University Journal of Basic and Applied Sciences, 2017
An actinomycetes strain VAS16 was isolated from the soil collected from the agricultural field of Vengodu. The strain was identified as Nonomuraea species based on morphological, physiological and biochemical characteristics along with 16S rRNA gene ...
P. Saravana Kumar   +7 more
doaj   +1 more source

Electronic Smoking Devices Among University Students: Usage Patterns and Chemical Composition of Inhaled Substances

open access: yesAnalytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT This study investigated the prevalence of electronic smoking device (ESD) use and its associated behavioural and chemical risks among university students in Bahia, Brazil. A cross‐sectional survey was conducted with 355 students from public and private institutions through an online questionnaire between April and May 2023. Among participants,
Eduard F. Valenzuela   +7 more
wiley   +1 more source

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