Results 21 to 30 of about 49,786 (249)

Effect of the heating rate on crystallization and densification of TiO2 films prepared from alkoxide solutions containing various organic additives

open access: yesJournal of Asian Ceramic Societies, 2023
The effect of the heating rate on crystallization and densification of sol–gel-derived TiO2 films has been investigated. The TiO2 gel films were prepared from Ti(OC3H7i)4 solutions containing alcohols (2-butanol and 2-methoxyethanol), glycols (propylene ...
Hiroaki Uchiyama   +2 more
doaj   +1 more source

Iron chelating agents for iron overload diseases

open access: yesThalassemia Reports, 2014
Although iron is an essential element for life, an excessive amount may become extremely toxic both for its ability to generate reactive oxygen species, and for the lack in humans of regulatory mechanisms for iron excretion.
Guido Crisponi   +2 more
doaj   +1 more source

The effect of using deinked mixed office waste pulp on the properties of Alkaline Proxide Mechanical Pulp from cotton stalk [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2016
The present study was carried out aiming to investigate the effect of using Deinked Mixed Office Waste Pulp (MOW) on the properties of Alkaline Peroxide Mechanical Pulp (APMP) from cotton stalk.
Mehrnoosh Tavakoli   +3 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Application of Agrobacterium sp. I30 and vermicompost to suppress lead (Pb) uptake by rice in Pb polluted soil

open access: yesJournal of Degraded and Mining Lands Management, 2018
Irrigation with textile wastewater and fertilization with an inorganic fertilizer containing lead (Pb) have negative impacts for agricultural sectors, especially lead contamination in a rice field and its uptake by rice plant.
Karisma Ana Yasinta   +2 more
doaj   +1 more source

The therapeutic opportunities and pitfalls of using iron ion chelators to treat neurodegenerative diseases

open access: yesFEBS Letters, EarlyView.
Although too much iron in the brain promotes neurodegeneration, iron ion chelators have had mixed effects in clinical trials. This review explains why; some chelators do not render the iron redox‐inactive (e.g., L1) whereas others do (e.g., desferrioxamine).
Barry Halliwell
wiley   +1 more source

DFT Exploration of Metal Ion–Ligand Binding: Toward Rational Design of Chelating Agent in Semiconductor Manufacturing

open access: yesMolecules
Chelating agents are commonly employed in microelectronic processes to prevent metal ion contamination. The ligand fragments of a chelating agent largely determine its binding strength to metal ions.
Wenyuan Wang   +6 more
doaj   +1 more source

Copolímeros de estireno-divinilbenzeno impregnados com agentes complexantes organofosforados para separação de terras raras Styrene-divinylbenzene copolymers loaded with organophosphorus chelating agents for rare earths separation

open access: yesPolímeros, 1998
RESUMO: Copolímeros de estireno-divinilbenzeno para aplicação em cromatografia de extração foram sintetizados em presença de agentes complexantes seletivos para terras raras, o fosfato monoácido de bis(2-etil-hexila), DEHPA e o 2-etil-hexil fosfonato ...
Celina C. R. Barbosa   +3 more
doaj   +1 more source

Role of Flavonoids in the Treatment of Iron Overload

open access: yesFrontiers in Cell and Developmental Biology, 2021
Iron overload, a high risk factor for many diseases, is seen in almost all human chronic and common diseases. Iron chelating agents are often used for treatment but, at present, most of these have a narrow scope of application, obvious side effects, and ...
Xiaomin Wang   +6 more
doaj   +1 more source

Somatostatin receptor 4 (SSTR4) is a tumor suppressor in cutaneous and head & neck squamous cell carcinomas

open access: yesMolecular Oncology, EarlyView.
This study identifies somatostatin receptor 4 (Sstr4) as a critical tumor suppressor against skin and head/neck cancers (HNSCC, cSCC, and BCC). The loss of Sstr4 removes a check on cell growth, causing hyperactivation of the MAPK‐ERK signaling pathway (↑).
Ali Taqvi   +6 more
wiley   +1 more source

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