Zobrazeno 1 - 10
of 2 817
pro vyhledávání: '"Supramolecular structure"'
Autor:
A. A. Nikolaev, A. P. Kondratov
Publikováno v:
Тонкие химические технологии, Vol 19, Iss 4, Pp 350-359 (2024)
Objectives. To develop technologies for producing multilayer films of transparent thermoplastic polymers; to study methods of modifying their supramolecular structure; and to determine their optical properties by means of optical-polarization methods
Externí odkaz:
https://doaj.org/article/6cb284f2b12b4c60a8792c7de9068224
Publikováno v:
Учёные записки Казанского университета: Серия Естественные науки, Vol 166, Iss 3, Pp 414-429 (2024)
The reducing capacity of humic acids (HA) was evaluated by the spectrophotometric method using Fe(III) complexes with organic and inorganic ligands as oxidizing agents, depending on the medium pH and reagent concentration. The maximum sensitivity of
Externí odkaz:
https://doaj.org/article/87850a684bf64f8786ad9579117baec7
Publikováno v:
East European Journal of Physics, Iss 3, Pp 474-478 (2024)
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). Based on the results obtained, it is shown that the dendrite resistance of LDPE, as e
Externí odkaz:
https://doaj.org/article/4b5fbcecded24ec08b683b904f637d30
Autor:
Antonella Vitti, Leonardo Coviello, Maria Nuzzaci, Giovanni Vinci, Yiannis Deligiannakis, Evangelos Giannakopoulos, Domenico Ronga, Alessandro Piccolo, Antonio Scopa, Marios Drosos
Publikováno v:
Chemical and Biological Technologies in Agriculture, Vol 11, Iss 1, Pp 1-10 (2024)
Abstract Background Humic acid affects plant growth. Its source and structure may play a central role to its functionality. The relationship between humic acid and plant bioactivity is still unclear. This study investigated the biostimulation effects
Externí odkaz:
https://doaj.org/article/10e2f5ef85c742fdbb1e146e5f705802
Publikováno v:
East European Journal of Physics, Iss 2, Pp 422-430 (2024)
Cellulose-based materials are not in short supply and are characterized by relatively low cost. On the other hand, cellulose fibers have a wide range of valuable physical, chemical and mechanical properties that make them indispensable in a number of
Externí odkaz:
https://doaj.org/article/1bd3c66074be4381875f4a6a46868650
Publikováno v:
Chimica Techno Acta, Vol 11, Iss 2 (2024)
In the present work, the dispersive surface free energy was calculated by Dorris-Gray method for 30 samples of adsorbents modified with chiral supramolecular structures of uracil, 6-methyluracil, 5-hydroxy-6-methyluracil, 5-fluorouracil, thymine, mel
Externí odkaz:
https://doaj.org/article/7bbdd4dae6424fe88fa2c0d48f91f11b
Autor:
Ismael Angel-Nieto, Rosa Elena Arroyo-Carmona, Aarón Pérez-Benítez, Gerardo Aguirre-Hernández, Sylvain Bernès
Publikováno v:
IUCrData, Vol 9, Iss 5, p x240376 (2024)
The use of acetic acid (HOAc) in a reaction between CuCl2·2H2O and secnidazole, an active pharmaceutical ingredient useful in the treatment against a variety of anaerobic Gram-positive and Gram-negative bacteria, affords the title complex, [CuCl2(C7
Externí odkaz:
https://doaj.org/article/d0ac92d4d78f43e9816690460a571674
Chlorido(2-{(2-hydroxyethyl)[tris(hydroxymethyl)methyl]amino}ethanolato-κ5N,O,O′,O′′,O′′′)copper(II)
Publikováno v:
IUCrData, Vol 9, Iss 5, p x240439 (2024)
The title complex, [Cu(C8H18NO5)Cl] or [Cu(H4bis-tris)Cl], was obtained starting from the previously reported [Cu(H5bis-tris)Cl]Cl compound. The deprotonation of the aminopolyol ligand H5bis-tris {[bis(2-hydroxyethyl)amino]tris(hydroxymethyl)methane,
Externí odkaz:
https://doaj.org/article/d32d286731e0436d814349cd3ad0356f
Publikováno v:
Shipin Kexue, Vol 44, Iss 20, Pp 8-19 (2023)
Objective: This study aimed to investigate the influence of degree of polymerization of amylose on the digestibility characteristics of its ternary complexes. Methods: Ternary complexes of seedless breadfruit starch, prepared by separately mixing amy
Externí odkaz:
https://doaj.org/article/221ff12d0418490f9d8a385ee6948220
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 79, Iss 6, Pp 562-566 (2023)
The chemical formula of the title compound, 2C17H17N4+·2C7H5O5−·C17H16N4·2.94C4H8O2, was established by X-ray diffraction of a single-crystal obtained by reacting 1,3-bis(benzimidazol-2-yl)propane (L) and gallic acid (HGal) in ethyl acetate. The
Externí odkaz:
https://doaj.org/article/1791be95bfe849438efa49a0539e720c