Results 61 to 70 of about 9,543 (299)

Trace element partitioning controls on cave drip water compositions through prior calcite and aragonite precipitation

Communications Earth & Environment
Speleothem trace element records can provide seasonal resolution climate reconstructions, but the interpretation can be challenging. Aragonite samples are understudied compared to calcite samples, despite that aragonite has 10x higher uranium ...
Jasper A. Wassenburg, Anupam Samanta, Lijuan Sha, Hosun Lee, Denis Scholz, Hai Cheng, Brigitte Stoll, Yassine Ait Brahim, Alexander Budsky, Sebastian F. M. Breitenbach   +9 more
doaj   +1 more source

Ferromanganese nodules and micro-hardgrounds associated with the Cadiz Contourite Channel (NE Atlantic): Palaeoenvironmental records of fluid venting and bottom currents

, 2012
Ferromanganese nodule fields and hardgrounds have recently been discovered in the Cadiz Contourite Channel in the Gulf of Cadiz (850–1000 m). This channel is part of a large contourite depositional system generated by the Mediterranean Outflow Water ...
Medialdea, Teresa, Torres, Trinidad de, González, Francisco Javier, Ortiz, José E., Medialdea Cela, Teresa, Merinero, Raúl, Torres Pérez-Hidalgo, Trinidad José, León, Ricardo, Somoza, Luis, Merinero Palomares, Raúl, Martinez Frias, Jesus, González Sanz, Francisco Javier, Lunar Hernández, María Del Rosario, Ortiz Menéndez, José Eugenio, León Buendía, Ricardo, Lunar, Rosario, Somoza Losada, Luis   +16 more
core   +1 more source

Reduced Graphene Oxide Transparent Electrodes Enabling Compact Soft Tunable Lenses

Advanced Functional Materials, EarlyView.
By spray‐coating an elastomeric membrane with reduced graphene oxide (rGO) at various surface densities, elastomeric actuators are manufactured. Electro‐mechano‐optical characterizations show the suitability of rGO as an effective material for compliant, semi‐transparent electrodes, enabling soft electrically tunable lenses with a compact form factor ...
Giacomo Sasso, Alec Lamoreux, Nicola Pugno, James J. C. Busfield, Federico Carpi   +4 more
wiley   +1 more source

Mechanical and Electrical Phenotype of hiPSC‐Cardiomyocytes on Fibronectin‐Based Hydrogels

Advanced Healthcare Materials, EarlyView.
We introduce fibronectin‐based PEG hydrogels with controlled rigidity to enable the culture of iPSC‐derived cardiomyocytes. These substrates offer an alternative to the current culture of these cells on fibronectin‐coated glass, providing enhanced structural and functional behavior. The system provides a more physiologically relevant platform to assess
Ana Da Silva Costa, Lineta Stonkute, Sara Trujillo, Mariana Azevedo Gonzalez Oliva, Francis Burton, Matthew J. Dalby, Oana Dobre, Godfrey Smith, Manuel Salmeron‐Sanchez   +8 more
wiley   +1 more source

The influence of different radiopacifying agents on hermetical sealing ability of calcium silicate and calcium aluminate dental cements [PDF]

Science of Sintering
This study presents technological process for obtaining strontium enriched calcium silicate based dental ceramics and testing their microstructural and chemical properties. In brief, the influence of different radiopacifiers on microstructural properties
Ćetković Dejan, Zhiyu Cai, Vuković Nemanja, Vuković Zorica, Lei Huaxiang, Biočanin Vladimir, Huang Xiaojing, Jokanović Vukoman, Antonijević Đorđe, Dožić Aleksandra   +9 more
doaj   +1 more source

(Table 1) Carbonate fraction, magnesium and strontium concentrations in the carbonate fraction at DSDP Hole 92-600C

, 1986
(Table 1) Carbonate fraction, magnesium and strontium concentrations in the carbonate fraction at DSDP Hole 92 ...
Hu, Jine-Yu, Kastner, Miriam, Jine-Yu Hu (6969440), Gieskes, Joris M, Miriam Kastner (6963548), Joris M Gieskes (6962768)   +5 more
core   +1 more source

Effect of strontium carbonate and calcium carbonate nanoparticles partially substituted by strontium on remineralization and tubular obliteration of dentin

, 2022
O objetivo deste estudo foi avaliar a capacidade de remineralização e obliteração tubular da dentina submetida a tratamento com agentes dessensibilizantes de carbonato de estrôncio e carbonato de cálcio parcialmente substituído por estrôncio, por meio da
Dotta, Tatiane Cristina
core   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Strontium Carbonate: As an Efficient, Environmentally free catalyst for the synthesis of 2-Aryl Benzoxazole derivatives

, 2021
A Highly Efficient and environmentally benign method has been developed for the synthesis of 2- Aryl benzoxazoles from 2-aminophenol and substituted aldehydes in presence of nanocrystalline strontium carbonate catalyst at room temperature and solvent ...
J. A. Agashe, D, R. Tope
core   +1 more source

Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects

Advanced Materials, EarlyView.
Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley   +1 more source