Results 241 to 250 of about 706,087 (286)

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

Advanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez, Melanie Guillén‐Soler, Carlos Herreros‐Lucas, Alejandro López‐Moreno, José Manuel Vila‐Fungueiriño, Antonio Luis Llamas‐Saiz, Karol Strutyński, Manuel Melle‐Franco, María del Carmen Giménez‐López   +8 more
wiley   +1 more source

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

Advanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel, Haotian Lu, Jiayan Zhang, Desheng Yao, Ananya Bhardwaj, Ramiro Contreras, Karim Sabra, Xiaoyu (Rayne) Zheng   +7 more
wiley   +1 more source

COFs on MOFs: Layer‐by‐Layer Synthesis of MOF@COF Nanoparticles with Synergistic Adsorption

Advanced Materials, EarlyView.
A layer‐by‐layer strategy enables the growth of crystalline covalent organic framework (COF) shells on metal–organic framework nanoparticles, creating core–shell structures with tunable porosity. Ordered interstitial mesopores are formed during shell growth, which are connected with the COF's intrinsic micropores, thereby enhancing water sorption. This
Ana Guillem‐Navajas, Lucía Torrico‐García‐Viso, Jose Antonio Suárez del Pino, Nekane Aramburu‐Merino, Pilar Segovia, Enrique G. Michel, Josep Puigmartí‐Luis, Enrique Velasco, Pedro Tarazona, Daniel Maspoch, David Rodríguez‐San‐Miguel, Félix Zamora   +11 more
wiley   +1 more source

Cold Atmospheric Plasma‐Activated Decellularized Extracellular Matrix Gel as a Tumor‐Infiltrating Immunoactivation Platform for Post‐Surgical Cancer Immunotherapy

Advanced Materials, EarlyView.
An injectable cold atmospheric plasma‐activated decellularized tumor extracellular matrix hydrogel is introduced as a post‐surgical immunoactivation platform. The engineered gel attracts residual tumor cells and induces immunogenic cell death, reshaping the tumor microenvironment and eliciting systemic antitumor immunity. In combination with checkpoint
Tianxu Fang, Mo Chen, Yueyang Deng, Tianqin Ning, Tianwen Luo, Guojun Chen   +5 more
wiley   +1 more source

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Essential oil composition of smyrnium olusatrum

Phytochemistry, 1998
The essential oils obtained by hydrodistillation of green and ripe fruits, herb, flowers and roots of Smyrnium olusatrum (alexanders), have been analyzed by means of GC, GC-MS, and NMR spectroscopic methods. Roots, herb and flowers are characterized by a high content of oxygenated sesquiterpenoids, most of them furanosesquiterpenoids, while green and ...
Ulrike, Mölleken, Volker, Sinnwell, Karl Heinz, Kubeczka   +2 more
openaire   +2 more sources

Essential Oils, Part III: Chemical Composition

Dermatitis, 2016
Data on the chemistry of essential oils which have caused contact allergy are provided. The largest group of chemicals found in essential oils consists of terpenes. The number of identified components usually ranges from 100 to 250, but in some oils (lavender, geranium, rosemary) 450 to 500 chemicals have been found.
Anton C, de Groot, Erich, Schmidt
openaire   +2 more sources

Essential oil composition ofAristolochia brevipes Benth.

Flavour and Fragrance Journal, 1997
The composition of the essential oil of Aristolochia brevipes Benth. has been investigated by GC and GC–MS. β-Pinene (20.6%), camphor (18.5%), dodecane (14.0%), 1,8-cineole (5.0%), and α-calacorene (5.0%) were the main components. The oil was characterized by the presence of a high percentage of monoterpene compounds. © 1997 John Wiley & Sons, Ltd.
Lorenzo Sagrero‐Nieves, John P. Bartley, Griselda B. Espinosa, Xorge A. Dominguez, Julia S. Verde   +4 more
openaire   +1 more source

Uruguayan essential oils. Part VI. Composition of lemon oil

Flavour and Fragrance Journal, 1997
The composition of 31 genuine Uruguayan lemon oils obtained by industrial processing (FMC on line) during the 1995 season is reported. The samples were representative of all production areas situated in the North and South of Uruguay. The volatile fraction was analysed by HRGC‐FID and GC‐MS; the enantiomeric distribution of b-pinene, sabinene, limonene,
DELLACASSA E, LORENZO P, MOYNA P, VERZERA, Antonella, MONDELLO, Luigi, DUGO, Paola   +5 more
openaire   +2 more sources

Uruguayan Essential Oils. Part V. Composition of Bergamot Oil

Journal of Essential Oil Research, 1997
Abstract The analysis of industrial and laboratory-prepared bergamot oils produced in Uruguay during the 1995 production season was carried out by GC and GC/MS. The composition of the Uruguayan bergamot oils were compared with those of Italian bergamot oils.
DELLACASSA E, LORENZO P, MOYNA P, VERZERA, Antonella, CAVAZZA A.   +4 more
openaire   +3 more sources

Composition of Essential Oil of Ledum palustre

Planta Medica, 1981
The composition of essential oil of Ledum palustre L. was investigated. This oil was obtained by steam distillation of leaf material from plants growing in the Hortus Botanicus at Haren (Groningen). It was separated into seventeen fractions by column chromatography on silicagel and gradient elution with mixtures of petrol (bpt.
Tattje, D. H. E., Bos, R.
openaire   +3 more sources