Results 81 to 90 of about 8,605 (221)

Dependence of sub-micron vaterite container release properties on pH and ionic strength of the surrounding solution [PDF]

, 2013
We report on the synthesis and characterization of porous monodisperse vaterite containers with controllable average sizes from 400 nm to 10 mu m. Possible release strategies of enclosed substances via recrystallization or by pH-change are presented.
Antolini, Renzo, Haase, Albrecht, Parakhonskiy, Bogdan, Tessarolo, Francesco   +3 more
core   +2 more sources

Enhanced Vaterite And Aragonite Crystallization At Controlled Ethylene Glycol Concentrations

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2019
Calciumcarbonate (CaCO3) has three distinct anhydrous polymorphs, namelyvaterite, aragonite and calcite. Although there is a high demand for aragoniteand vaterite polymorphs for biomedical use, their unstable nature makes itchallenging to synthesize them
Derya Kapusuz, Batur Ercan, Çağatay Mert Oral   +2 more
doaj   +1 more source

Distal urethral obstruction in an eight‐week‐old colt with struvite urolithiasis

Equine Veterinary Education, Volume 38, Issue 3, Page e130-e136, March 2026.
Summary An 8‐week‐old Thoroughbred colt presented with acute colic signs. Physical examination and transcutaneous ultrasound of the abdomen and penis revealed a urinary tract obstruction in the distal urethra due to urolithiasis. A distal urethrotomy over the site of obstruction was performed to remove the urolith and relieve the obstruction.
M. T. Connaughton, A. Wilson, C. M. Baldwin   +2 more
wiley   +1 more source

Sports Hall - Warranty Defect of Floor [PDF]

, 2019
The paper examines the issue of managing complaints after buildings have been put into operation. The problem is documented through the case study example “Sports Hall Reconstruction”, in which a fault appearing in part of a large concrete slab is ...
Kubečková, Darja, Smugala, Stanislav
core   +1 more source

Effects of temperature, pH and calcium-to-carbonate ratio on the calcium carbonate polymorphs

Discover Civil Engineering
The precipitation of calcium carbonate (CaCO3) polymorphs (calcite, vaterite, and aragonite) plays a crucial role in tailoring the physicochemical properties of construction materials during mineral carbonation.
Mohd Hanifa, Usha Sharma, P. C. Thapliyal, L. P. Singh   +3 more
doaj   +1 more source

Cold Sintering of Calcite: A Low‐Temperature Method for the Fabrication of Artificial Marble

Journal of the American Ceramic Society, Volume 109, Issue 3, March 2026.
Comparison of the hardness of cold and conventionally sintered calcite with artificial marble. ABSTRACT This study presents a novel approach for the low‐temperature fabrication of dense calcite (CaCO3) without the use of a carbon dioxide (CO2) atmosphere.
Eleni Georgiou, Christopher Grimes, Ian M. Reaney   +2 more
wiley   +1 more source

New calcium carbonate-based cements for bone reconstruction [PDF]

, 2005
The feasibility of calcium carbonate-based cements involving the re-crystallization of metastable calcium carbonate varieties has been demonstrated. Two cement compositions were obtained by mixing either calcium carbonate phases (cement A) or a calcium ...
Combes, Christèle, Dechambre, Gérard, Fontaine, Marie-Laure, Rey, Christian, Sillam, Thierry   +4 more
core   +1 more source

Facile synthesis of vaterite fine powder CaCO3 from padalarang natural limestone with pH modifying via fine-bubble carbonation

Materials Research Express
Natural limestone, known for its high calcium carbonate (CaCO _3 ) content (∼95%) and safety in health applications, is widely used in science and industry. It exists in three forms: calcite, vaterite, and aragonite.
Renny Febrida, Sekar Diva Setyanagari, Revani Widjaya, Yanwar Faza, Ferry Faizal, I Made Joni   +5 more
doaj   +1 more source

Sculpting the Future of Bone: The Evolution of Absorbable Materials in Orthopedics

Advanced Materials, Volume 38, Issue 9, 12 February 2026.
This review summarizes the current status of polymeric, ceramic, and metallic absorbable materials in orthopedic applications, and highlights several innovative strategies designed to enhance mechanical performance, control degradation, and promote bioactivity. We also discuss the progress and translational potential of absorbable materials in treating
Zhao Wang, Zehui Lv, Xuejie Cai, Yingjie Wang, Bo Peng, Haojing Xu, Hualuo Pang, Xingdong Yang, Jiawei Xu, Yixin Bian, Bin Feng, Peng Wen, Yufeng Zheng, Xisheng Weng   +13 more
wiley   +1 more source

Influence of relative humidity on the carbonation of calcium hydroxide nanoparticles and the formation of calcium carbonate polymorphs [PDF]

, 2013
A consolidating product based on nanoparticles of slaked lime (Ca(OH)2) dispersed in isopropyl alcohol was exposed under different relative humidities (RH), 33%, 54%, 75% and 90% during 7, 14, 21 and 28days.
Fort González, Rafael, Gómez, L. S., López-Arce, Paula, Martínez-Ramírez, S., Álvarez de Buergo, Mónica   +4 more
core   +1 more source