Results 71 to 80 of about 303,276 (212)

Synthesis and Cyclizations of N-(2,3-, 3,4- and 3,5-Dimethylphenyl)-β-alanines

Molecules, 2005
A series of 1-aryl substituted dihydro-, 5-methyldihydro- and 6-methyl-dihydro-2,4(1H,3H)pyrimidinediones and their 2-thio analogues were obtained byreaction of the corresponding β-alanines or α-methyl- and β-methyl-β-alanines with ureaor ...
Gema Mikulskiene, Vytautas Mickevicius, Rita Vaickelioniene   +2 more
doaj   +1 more source

Iron(III) ion reinforced P(NiPAAm‐co‐AA) beads as tunable smart organogels

Polymer International, EarlyView.
Macroporous beads of PNiPAAm‐co‐AA copolymers were further crosslinked by iron(III) ions. The resulting beads are mechanically robust and reversibly responsive to a change of solvent from ethanol to ethyl acetate with half‐lives in the range of minutes.
Johannes Gmeiner, Jonah Hasse, Gerrit A Luinstra   +2 more
wiley   +1 more source

Study on acoustic behaviour of potassium thiocyanate in aqueous and various non-aqueous solvents at 298 - 313K [PDF]

, 1998
252-256The results obtained in the acoustic behaviour study, such as ultrasonic velocity (U), adiabatic compressibility (βad), intermolecular free-length(Lf), acoustic impedence (Z), relative association (RA), solvation number (Sn), of potassium ...
Bhat, J Ishwara, Shivakumar, H.R.
core  

Chemical agents to control biofilm formation in step 1 of care—Toothpastes and mouthwashes/concepts and challenges

Periodontology 2000, EarlyView.
Abstract Maintaining optimal oral hygiene is important for overall oral care, ensuring the well‐being of teeth and their surrounding tissues. In addition, it promotes fresh breath and a pleasing smile. A key element of oral self‐care is the daily use of toothpaste during regular brushing.
Maud Joosstens, Cees Valkenburg, Fridus Van der Weijden   +2 more
wiley   +1 more source

The structure of a voltage gated potassium channel

, 2010
Voltage gated potassium channels (Kv channels) are tetrameric ion channels, responsible for regulating the potassium component of the membrane potential in a large range of cell types ranging from mammalian excitable cells to bacteria. Attempts have been
Rogers, Nik
core   +1 more source

New high-selective and sensitive extraction-photometric method for determination of cobalt

Журнал Белорусского государственного университета: Химия, 2017
Anion-exchange extraction of thiocyanate complexes of zinc, cobalt(II), copper(II), cadmium, mercury(II), nickel with N,N-didecyl-N-[2-(didecylamino)ethyl]-decan-1-aminium picrate in different solvents has been investigated.
Iryna V. Kachanovich, Uladzimir V. Yagorau, Yauheni M. Rakhmanko   +2 more
doaj  

Loss of zinc from zinc‐biofortified rice and conventional rice varieties due to various cooking techniques practiced in rural Bangladesh

Journal of the Science of Food and Agriculture, Volume 106, Issue 13, Page 8202-8209, October 2026.
Abstract BACKGROUND Zinc‐biofortified rice has the potential to provide a sustainable solution for zinc deficiency, particularly in Asian countries where rice is the primary staple food. However, cooking of raw rice is associated with some loss of micronutrients, including zinc.
Prasenjit Mondal, Melaku Engidaw, Habibul Bari Shozib, Md. Mariful Islam, Abdullah Al Mahim, Hai N Phung, Sabuktagin Rahman, Malay Kanti Mridha, Faruk Ahmed   +8 more
wiley   +1 more source

The Employment of Hydrogen Peroxide in Water Disinfection Poses a Threat to Aquatic Ecosystems Because of Its Toxicity to Nontarget Organisms

Environmental Toxicology, Volume 41, Issue 10, Page 1060-1068, October 2026.
ABSTRACT Hydrogen peroxide is widely used in water and wastewater treatment, particularly in advanced oxidation processes that aid in the degradation of compounds and microbial disinfection. Despite concerns about potential environmental contamination, its impact on freshwater ecosystems remains inadequately studied.
Letícia Queiroz Almeida, Thayrine Dias Carlos, Leydiane Barbosa Bezerra, Rone S. Barbosa, Nelson Luís Gonçalves Dias Souza, Douglas Henrique Pereira, Renato Almeida Sarmento, Grasiele Soares Cavallini   +7 more
wiley   +1 more source

Water and ionic liquid synergy: A novel approach for the synthesis of benzothiazole-2(3H)-one

Journal of Saudi Chemical Society, 2015
Synergy between water, a green reaction medium and ionic liquid, a green catalyst has opened new vistas in the field of organic transformation. The developed methodology has emerged as an interesting combination for an environmentally benign, facile and ...
Malik A. Waseem, Shireen, Arjita Srivastava, Anjali Srivastava, Rahila, I.R. Siddiqui   +5 more
doaj   +1 more source

Overview of Photochemical Reactions for the Synthesis of Aza and Oxa‐Spirocyclic Compounds Under Visible Light Irradiation

Chemistry &Biodiversity, Volume 23, Issue 9, September 2026.
This review presents the visible‐light‐mediated photochemical reaction for the synthesis of aza, oxa, and aza–oxa spirocyclic compounds via photoinduced electron transfer (PET), hydrogen atom transfer (HAT), single‐electron transfer (SET), or energy transfer (EnT) pathways.
Annu Bhardwaj, Shivangi Jaiswal, Khushboo Bhardwaj, Swapnil Sharma, Jaya Dwivedi   +4 more
wiley   +1 more source