Results 1 to 10 of about 2,286 (170)

Flavonoids in Nasal Therapeutics: Biological Activities, Delivery Challenges, and Formulation Strategies–A Systematic Review

Phytotherapy Research, EarlyView.
Overview of the therapeutic potential of flavonoids in nasal delivery systems, highlighting their benefits to the human nasal cavity, and applications in the treatment of respiratory and brain‐related diseases. ABSTRACT Flavonoids represent a significant group of secondary metabolites.
Jeniffer Viviana Ramirez Hernández, Sara Elis Bianchi, Flávia Nathiely Silveira Fachel, Elizandra Braganhol, Sheila Porto de Matos, Valquíria Linck Bassani   +5 more
wiley   +1 more source

Patch Testing in Individuals With Diabetes Using Medical Devices. Part 2—Contact Allergy to Medical Device Allergens and New Patch Test Recommendations

Contact Dermatitis, EarlyView.
This study aimed to describe the prevalence of contact allergy to allergens found in diabetes medical devices (MDs) among diabetes MD users and suggest an updated MD patch test series. Of the 204 diabetes MD users (114 with skin rash to diabetes MDs and 90 without), 16.2% were positive to allergens found in diabetes MDs, which underlines the urgent ...
Josefin Ulriksdotter, Martin Mowitz, Thanisorn Sukakul, Magnus Bruze, Nils Hamnerius, Cecilia Svedman   +5 more
wiley   +1 more source

Hydrophobic Cellulose Acetate Aerogels for Thermal Insulation

Gels, 2022
As naturally derived material, cellulose aerogels have excellent thermal insulation properties due to their unique high porosity and three-dimensional mesoporous structure.
Sizhao Zhang, Zhouyuan Yang, Xing Huang, Jing Wang, Yunyun Xiao, Junpeng He, Jian Feng, Shixian Xiong, Zhengquan Li   +8 more
doaj   +1 more source

Polyurethane Depolymerization With Alkyl, Aryl, and Mixed Carbonates

ChemSusChem, Volume 19, Issue 11, 15 June 2026.
The depolymerization of polyurethane foams strongly depends on carbonate structure. Aryl carbonates improve hard‐segment solubility but generate side products. Alkyl carbonates give cleaner products yet suffer from limited hard‐block solubility and require anisole as a cosolvent. Mixed carbonate systems balance these effects, improving solubility while
Ege Hosgor, Ricardo P. Martinho, Willem Verboom, Jean‐Paul Lange, Jurriaan Huskens   +4 more
wiley   +1 more source

Calix[4]arene Design for Enhanced Carbon Capture via Topological Learning

Chemistry – A European Journal, Volume 32, Issue 18, 14 May 2026.
ABSTRACT Solid direct air capture (S‐DAC) technologies have the potential to remove pre‐existing CO2 from the atmosphere by taking advantage of hydrophobic materials that will retain CO2 through physisorption and separating it from the abundant water molecules. Calix[n]arenes are highly tunable and versatile complexes with inherent hydrophobic cavities,
Jeffrey A. Laub, Konstantinos D. Vogiatzis   +1 more
wiley   +1 more source

Occupational exposure to selected isocyanates in Polish industry

Medycyna Pracy, 2015
Background: Isocyanates constitute a group of highly reactive, low molecular weight chemicals used worldwide for polyurethane manufacturing. The occupational exposure to these compounds is a major cause of occupational asthma, thus it is very important ...
Sławomir Brzeźnicki, Marzena Bonczarowska   +1 more
doaj   +1 more source

Cyclodextrin‐Based Hollow Nanocapsules Synthesized Using Catalytic Templates

Polymers for Advanced Technologies, Volume 37, Issue 4, April 2026.
ABSTRACT Cyclodextrin‐based hollow nanocapsules were synthesized by a core‐shell method using catalytic silica nanoparticle cores and a β‐cyclodextrin‐based polyurethane shell. Silica nanoparticles prepared by the “Stober” method were first functionalized with a molecular spherical monolayer of the tertiary amine‐terminated silane, N,N‐dimethyl‐3 ...
Alexander D. Q. Li
wiley   +1 more source

Progress in Allergy Signal Research on Mast Cells: Up-Regulation of Histamine Signal-Related Gene Expression in Allergy Model Rats

Journal of Pharmacological Sciences, 2008
Brown Norway allergy model rats sensitized to toluene 2,4-diisocyanate (TDI) were developed. Histamine H1receptor mRNA level was elevated in nasal mucosa of allergy model rats after the provocation with TDI, which was followed by H1-receptor up ...
Hiroyuki Fukui
doaj   +1 more source

Synthesis and toxicity assessment of Fe3O4 NPs grafted by ∼ NH2-Schiff base as anticancer drug: modeling and proposed molecular mechanism through docking and molecular dynamic simulation

Drug Delivery, 2020
Superparamagnetic iron oxide nanoparticles have been synthesized using chain length of (3-aminopropyl) triethoxysilane for cancer therapy. First, we have developed a layer by layer functionalized with grafting 2,4‐toluene diisocyanate as a bi‐functional ...
Rahime Eshaghi Malekshah, Bahareh Fahimirad, Mohammadreza Aallaei, Ali Khaleghian   +3 more
doaj   +1 more source

Polyurethane Cascade Depolymerization by a Combination of Thermal Pretreatment and Enzymatic Hydrolysis

ChemSusChem, Volume 19, Issue 5, 13 March 2026.
This study explored the cascade depolymerization of a polyether‐polyester polyurethane based on a combination of low‐temperature thermal treatment and enzymatic hydrolysis. Heat pretreatment changed the physicochemical properties of polyurethane, followed by cutinase‐catalyzed hydrolysis, leading to an increase in weight loss and the production of two ...
Shengwei Sun, Sathiyaraj Subramaniyan, Ganapathy Ranjani, Leandro Cid Gomes, Diana Bernin, Thomas Bayer, Uwe T. Bornscheuer, Minna Hakkarainen, Per‐Olof Syrén   +8 more
wiley   +1 more source