Results 51 to 60 of about 6,977 (282)

Engineering Strategies for Stable and Long‐Life Alkaline Zinc‐Based Flow Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Alkaline zinc‐based flow batteries face persistent challenges from unstable zinc deposition, including dendrite growth, passivation, corrosion, and hydrogen evolution, which severely limit cycling stability. Current research addresses these issues through coordinated electrode structuring, electrolyte regulation, and membrane design to control zinc ...
Yuran Bai   +6 more
wiley   +1 more source

Evaluation of chemical constituents of E-cigarette liquid refills marketed through online in India using NMR analysis

open access: yesTobacco Induced Diseases, 2018
Background Electronic cigarette (e-cigarette) is an emerging class of electronic nicotine-delivery system claimed by the industries as a quitting aid.
C V Divyambika, E Vidhubala, G Vani
doaj   +1 more source

Hydrogen Bond Induced Nonmonotonic Composition Behavior of the Glass Transition in Aqueous Binary Mixtures [PDF]

open access: yes, 2011
The glass transition temperature, T(g), of a binary mixture commonly varies monotonically between the T(g)s of its two components. However, mixtures of strongly associating liquids can instead exhibit a nonmonotonic T(g) variation.
Bergman, Rikard   +3 more
core   +1 more source

A Modular Bioinstructive Platform Reveals Mechanistic Insights into Additive‐Free, Topography‐Driven Osteogenesis

open access: yesAdvanced Healthcare Materials, EarlyView.
Engineered microparticle topographies direct human mesenchymal stem cell osteogenesis without biochemical additives. This osteogenic commitment is driven by canonical Hedgehog signaling and followed by temporal IGF‐II engagement. Two‐photon polymerization demonstrates spatial control, enabling the engineering of topographical gradients that pattern ...
Fatmah I. Ghuloum   +5 more
wiley   +1 more source

Efficacy of Two Caries Detector Dyes in the Diagnosis of Dental Caries

open access: yesFrontiers in Dentistry, 2010
Objective: The aim of the present study was to evaluate the efficacy of two caries detector dyes in the diagnosis of dental caries. Materials and Methods: Twenty extracted human posterior teeth without pulpal exposure were sectioned mesiodistally ...
M. Javaheri   +2 more
doaj  

Mechanism analysis and chemical equilibrium modelling for liquid phase glycerol hydrogenolysis

open access: yesChemical Thermodynamics and Thermal Analysis
In this work, the chemical equilibrium of the glycerol (GLY) hydrogenolysis in the liquid phase was studied from the mechanism of the CO and CC bond cleavage and hydrogenation reactions using the commercial simulator UniSim Design ® in the range T ...
Martín N. Gatti   +3 more
doaj   +1 more source

Dynamic evolution of the oscillatory Belousov-Zhabotinsky reaction upon addition of a non-ionic polymer [PDF]

open access: yes, 2006
The dynamic evolution of the oscillatory Belousov-Zhabotinsky reaction upon addition of increasing amount of the non-ionic polymer polypropylene glycol with molecular weight 425 g mol(-1) (PPG-425) was investigated in a stirred-batch reactor by ...
LOMBARDO, Renato   +2 more
core   +1 more source

3D Soft Hydrogels Induce Human Mesenchymal Stem Cells “Deep” Quiescence

open access: yesAdvanced Healthcare Materials, EarlyView.
Three‐dimensional soft hydrogels mimicking the bone marrow niche induce deep quiescence in human mesenchymal stem cells. Unlike 2D culture, 3D matrices halt proliferation, regulate cell‐cycle and quiescence markers, and downregulate mTORC1 signaling, preserving stem cell phenotype and therapeutic potential ex vivo.
David Boaventura Gomes   +11 more
wiley   +1 more source

Physicochemical studies of propylene and hexylene glycols in methanol solutions of hexachlorophene at different temperatures

open access: yesSouth African Journal of Chemical Engineering
The current study investigates the molecular interactions of glycol molecules (propylene (PG) and hexylene (HG) glycols) in hexachlorophene solutions at different temperatures and experimental pressure 0.1 MPa by merging acoustic and thermodynamic ...
Parminder Kaur   +4 more
doaj   +1 more source

Pioneering the Future: Principles, Advances, and Challenges in Organic Electrodes for Aqueous Ammonium‐Ion Batteries

open access: yesAdvanced Materials, Volume 37, Issue 13, April 2, 2025.
Leveraging the numerous advantages of ammonium‐ion (NH₄⁺)—including cost‐effectiveness, low corrosiveness, preferential orientation, and rapid diffusion kinetics—aqueous NH₄⁺ batteries (AAIBs) have gained significant attention. This review highlights and evaluates the progress of AAIBs utilizing organic electrode materials such as small molecules ...
Mangmang Shi, Xiaoyan Zhang
wiley   +1 more source

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