Results 81 to 90 of about 5,041 (159)

Controlled Synthesis and Microstructure of Metastable Flower-Like Vaterite

, 2018
Developing a simple morphology-controlled synthesis of metastable vaterite is a goal in the field of materials research. In this paper, we successfully synthesized flower-like dendritic vaterite crystals using a microwave method with 2-naphthaleneacetic ...
Weicheng Cao, Yebin Guan, Xiaohong Wang, Gentao Zhou   +3 more
core   +1 more source

Use of Foliar Biostimulants in Durum Wheat: Understanding Its Potential in Improving Agronomic and Quality Responses Under Mediterranean Field Conditions

Plants
Foliar application of biostimulants can be a valid option to reach the goal of sustainable intensification in agriculture, especially in extensive crops such as durum wheat.
Angelo Rossini, Roberto Ruggeri, Francesco Rossini   +2 more
doaj   +1 more source

Growth process and crystallographic properties of ammonia-induced vaterite

, 2010
Metastable vaterite crystals were produced by increasing the pH of Ca2+- and CO32--containing solutions through diffusing ammonia gas. The SEM and TEM studies indicate that this ammonia-induced vaterite is polycrystalline with a 6-fold symmetry of the ...
Qiaona Hu, Jiaming Zhang, Udo Becker
core   +1 more source

Growth evolution in calcium carbonate microparticles involving mixed vaterite-aragonite structures

Physical Review Research
Calcium carbonate (CaCO_{3}) is a widely occurring mineral that is crucial to many natural and synthetic processes. CaCO_{3} crystallizes in three anhydrous polymorphs and often serves as a model system to study nucleation and growth phenomena.
Daniyal Younas, Elizaveta Sidler, Chayene G. Anchieta, Seniz Ucar, Per Erik Vullum, Ragnvald H. Mathiesen, Federico Zontone, Raffaela Cabriolu, Yuriy Chushkin, Dag Werner Breiby, Basab Chattopadhyay   +10 more
doaj   +1 more source

L‐Aspartic Acid with Dual Functions: An Eco‐Friendly and Affordable Choice to Accelerate High Salinity Brine Utilization

Advanced Science
L‐Aspartic acid (L‐Asp) poses a dual function, which can affect the evaporation and crystallization process of the high‐salinity brine by altering the physical or chemical properties of the salts. MSWI (municipal solid waste incineration) fly ash washing
Suning Mao, Zhen Yu, Jie Chen, Yizhe Shen, Minjie Li, Chen Sun, Xiaoqing Lin, Bin Yang, Tong Chen, Qunxing Huang, Xiaodong Li, Jianhua Yan   +11 more
doaj   +1 more source

Examining the impacts of elevated, variable pCO2 on larval Pacific razor clams (Siliqua patula) in Alaska

Frontiers in Marine Science
An increase in anthropogenic carbon dioxide is driving oceanic chemical shifts resulting in a long-term global decrease in ocean pH, colloquially termed ocean acidification (OA).
Marina W. Alcantar, Jeff Hetrick, Jacqueline Ramsay, Amanda L. Kelley   +3 more
doaj   +1 more source

Peculiarities of microcirculatory reactions after subcutaneous implantation of polycaprolactone matrices mineralized by vaterite [PDF]

Саратовский научно-медицинский журнал, 2018
The aim is to assess skin microcirculation changes arising during subcutaneous implantation of polycaprolactone scaffolds mineralized by vaterite. Material and Methods.
Norkin I.A., Ivanov A.N., Kurtukova M.O., Savelyeva M.S., Martyukova A.V., Gorin D.A., Parakhonsky B.V.   +6 more
doaj  

Thermodynamic aspects of the vaterite-calcite phase transition

, 2000
Although vaterite is the least stable anhydrous calcium carbonate polymorph, it is formed as a metastable phase in some normal and pathological biomineralisation processes. In this work, thermodynamic aspects of the vaterite-calcite phase transition were
Schmidt, H. G., Königsberger, L.C., Gamsjäger, H., Königsberger, E., Wolf, G.   +4 more
core  

Comparative Evaluation of Drug Incorporation and Release Profiles in Six Specific Porous Vaterite CaCO₃ Formulations

Pharmaceuticals
Background: Vaterite calcium carbonate (CaCO3) particles are promising pH-sensitive carriers for oral drug delivery, but the influence of drug hydrophilicity on loading and release is still not well defined.
Nawar Mikhael Toma, Lubna Abdalkarim Sabri, Duaa Jaafar Jaber Al-Tamimi, Sajad Moneim Aljubouri, Shahbaa Mohammed Ati   +4 more
doaj   +1 more source

Improving the productivity and purity of vaterite produced via a refined bubbling method

, 2017
The bubbling method has been refined to produce vaterite with both high productivity and purity for its promising applications. This involves: a) adding an adequate amount of ammonia water to achieve maximum precipitation of Ca2+, b) refining CO2 bubble ...
Ying Xu, Zhaowu Shen, Peiyuan Chen, Honghao Ma   +3 more
core   +1 more source