Results 91 to 100 of about 66,759 (345)

Use of mixed Li/K metal TMP amide (LiNK chemistry) for the synthesis of [2.2]metacyclophanes

open access: yesBeilstein Journal of Organic Chemistry, 2011
A new two-step general approach to [2.2]metacyclophane synthesis from substituted m-xylenes is described. The strategy employs a selective benzylic metalation and oxidative C–C bond formation for both synthetic operations.
Marco Blangetti   +2 more
doaj   +1 more source

Characterization of an Injectable Poly(vinyl alcohol)‐gelatin Hydrogel for Growth Factor Delivery in an Orthopedic Application

open access: yesAdvanced Healthcare Materials, EarlyView.
This work introduces photo‐crosslinkable tyraminated poly(vinyl alcohol)‐gelatin (PVA‐GT) hydrogels as tunable injectable platforms for tissue engineering and growth factor delivery applications. This schematic illustrates the two developed hydrogel formulations and the experimental workflow used to evaluate their physico‐chemical properties in vitro ...
Alessia Longoni   +15 more
wiley   +1 more source

Investigating BTEX Emissions in Greece: Spatiotemporal Distribution, Health Risk Assessment and Ozone Formation Potential

open access: yesAtmosphere
This study investigates the atmospheric concentrations, spatiotemporal distribution, the associated health risks and the ozone formation potential of benzene, toluene, ethylbenzene and xylenes (BTEX) across 33 monitoring sites of Greece over a one-year ...
Panagiotis Georgios Kanellopoulos   +2 more
doaj   +1 more source

The study of partial and excess molar volumes for binary mixtures of nitrobenzene and benzaldehyde with xylene isomers from T = (298.15 to 318.15) K and P = 0.087 MPa

open access: yesJournal of Advanced Research, 2016
Based on density measurements, partial and excess molar volumes for binary mixtures of nitrobenzene and benzaldehyde with three isomers of xylene have been measured. The whole range of composition and temperatures from T = (298.15 to 318.15) K at ambient
Hamid R. Rafiee, Farshid Frouzesh
doaj   +1 more source

Acetone in the Atmosphere of Hong Kong, Abundance, Sources and Photochemical Precursors [PDF]

open access: yes, 2013
Intensive field measurements were carried out at a mountain site and an urban site at the foot of the mountain from September to November 2010 in Hong Kong.
Blake, DR   +6 more
core   +2 more sources

Flash Assembloids: A Rapid Biofabrication of a Platform for Modeling Early Glioblastoma Invasion at the Glioblastoma–Brain Organoid Interfaces

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents a bioengineered assembloid (ASM) system combining glioblastoma (GBM) cells in oxidized alginate (OA) microgels with dorsal organoids (DOs). This model simulates brain tumor‐host interactions, revealing enhanced GBM invasion, altered gene expression, and aggressive infiltration patterns, demonstrating ASM as a valuable platform for ...
Chao Liang   +17 more
wiley   +1 more source

Differential Disease Susceptibilities in Experimentally Reptarenavirus-Infected Boa Constrictors and Ball Pythons. [PDF]

open access: yes, 2017
Inclusion body disease (IBD) is an infectious disease originally described in captive snakes. It has traditionally been diagnosed by the presence of large eosinophilic cytoplasmic inclusions and is associated with neurological, gastrointestinal, and ...
Boback, Scott M   +9 more
core   +1 more source

Diels‐Alder Click Chemistry as a Dynamic‐Covalent Crosslinking Method in Spheroid‐Encapsulating Hydrogels for Cartilage Engineering

open access: yesAdvanced Healthcare Materials, EarlyView.
This research shows the development of hydrogels with Diels‐Alder click chemistry for engineering cartilage‐like tissue. The hydrogels support cartilage spheroids which could be cultured for at least 28 days. Furthermore, the spheroids showed a tendency to fuse together into a more consistent construct, and produced important components needed for ...
Sanne M. van de Looij   +8 more
wiley   +1 more source

Analysis of benzene, toluene, ethylbenzene and xylenes in soils by headspace and gas chromatography/flame ionization detector

open access: yesSemina: Ciências Exatas e Tecnológicas, 2006
The constituents of gasoline: benzene, toluene, ethylbenzene and xylenes (BTEX) are frequently found in soils due to leaks in fuel storage tanks and they present chronic toxicity. In this work it was developed and validated a methodology of BTEX analysis
Jurandir Pereira Pinto   +3 more
doaj  

Economic evaluation of aromatics production, a case study for financial model application in petrochemical projects

open access: yesEgyptian Journal of Petroleum, 2017
Economics is the engine that drives industry. For complete understanding of project economics four major items must be discussed; capital requirements, operating expenses, cash flow and profitability measures.
H.R. Omran   +3 more
doaj   +1 more source

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