Results 91 to 100 of about 2,097 (212)

Scaffold microstructure evolution via freeze‐casting and hydrothermal phase transformation of calcium phosphate

Journal of the American Ceramic Society, Volume 107, Issue 12, Page 7994-8006, December 2024.
Scaffolds with enhanced porosity and altered surface morphologies were created through freeze‐casting, sintering, and subsequent hydrothermal treatment. The modified scaffolds maintained their overall macrostructure, displaying high porosity (≥60%), diverse hydroxyapatite phase ratios (0–99%), and a compressive strength of 5.7 MPa.
Maliha Siddiqui, David Salamon
wiley   +1 more source

Degradation processes of reinforced concretes by combined sulfate--phosphate attack [PDF]

A novel form of alteration due to the interaction between hydrated cement phases and sulfate and phosphate-based pollutants is described, through the characterization of concrete samples from an industrial reinforced concrete building. Decalcification of
Lampronti, Giulio Isaaco, Maritan, Lara, Schlegel, Moritz-Caspar, Secco, Michele, Zorzi, Federico   +4 more
core   +1 more source

Thermal stability of brushite with chitosan samples [PDF]

, 2017
In this paper, the powders of brushite from an aqueous solution of Ca(NO[3])[2]- (NH[4])[2]HPO[4] with different content of chitosan were synthesized. XRD data revealed that all samples are single-phase and are brushite (CaHPO[4]•centerdot2H[2]O).
Chikanova, E. S., Golovanova, О. А., Kuimova, Marina Valerievna, Malikova, T. V.   +3 more
core   +1 more source

A Probabilistic Approach to Phosphorus Speciation of Soils Using P K-edge XANES Spectroscopy with Linear Combination Fitting

Soil Systems, 2020
A common technique to quantitatively estimate P speciation in soil samples is to apply linear combination fitting (LCF) to normalized P K-edge X-ray absorption near-edge structure (XANES) spectra.
Jon Petter Gustafsson, Sabina Braun, J. R. Marius Tuyishime, Gbotemi A. Adediran, Ruben Warrinnier, Dean Hesterberg   +5 more
doaj   +1 more source

Calcium Phosphates: A Key to Next‐Generation In Vitro Bone Modeling

Advanced Healthcare Materials, Volume 13, Issue 29, November 22, 2024.
The review examines the need for in vitro bone models focusing on the role of calcium phosphates (CaP). It discusses CaP’s contributions to cell types, nutrient supply, and mechanical strength, while addressing challenges like compositional variability and instability.
Ashish Pandit, Abhishek Indurkar, Janis Locs, Håvard Jostein Haugen, Dagnija Loca   +4 more
wiley   +1 more source

Composite brushite-monetite-newberyite cements loaded with vancomycin and their efficiency against infections of: In vitro and in vivo research

Open Ceramics
Composite cements containing brushite, monetite and newberyite as dominating phases were created and used as drug (vancomycin) carriers. Brushite-monetite-newberyite cement with variable composition was obtained by replacing Ca2+ ions with Mg2+ in the ...
Yulia Lukina, Sergey Kotov, Aleksandr Senyagin, Leonid Bionyshev-Abramov, Natalya Serejnikova, Rostislav Chelmodeev, Alexander Tavtorkin, Maria Ryndyk, Dmitriiy Smolentsev, Sergey Sivkov, Tatiana Safronova   +10 more
doaj   +1 more source

The successful use of a bespoke OssDsign cranial plate to reconstruct an occipital defect following excision of a recurrent epithelioid sarcoma

JPRAS Open, 2020
A cranioplasty has a number of known associated complications including infection for non-biological implants and bone flap resorption where autologous grafts are used.
Oliver Bloom, Naveen Goddard, Basil Yannoulias, Simon Eccles   +3 more
doaj   +1 more source

Multimodal, microspectroscopic speciation of legacy phosphorus in two US mid‐Atlantic agricultural soils

Soil Science Society of America Journal, Volume 88, Issue 6, Page 1992-2012, November/December 2024.
Abstract To understand phosphorus (P) mobility in agricultural soils and its potential environmental risk, it is essential to directly measure solid phase P speciation. Often, bulk P K‐edge X‐ray absorption near edge structure (XANES) spectroscopy followed by linear combination fitting (LCF) is utilized to determine the solid P phases in soil. However,
Kathryn D. Szerlag, Matthew G. Siebecker, Fatemeh Izaditame, Paul Northrup, Ryan Tappero, Donald L. Sparks   +5 more
wiley   +1 more source

Acidic Monetite Complex Paste with Bleaching Property for In-depth Occlusion of Dentinal Tubules

International Journal of Nanomedicine, 2021
Bolin Li,1 Chunyan Liu,2,3 Ze-hui Fang,4 Ying Cao,4 Zheng Zhou,3 Haiyan Lu2 1Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School & Hospital of Stomatology, Hebei Medical University, Shijiazhuang 050017 ...
Li B, Liu C, Fang ZH, Cao Y, Zhou Z, Lu H   +5 more
doaj  

Is Struvite a Prebiotic Mineral?

Life, 2013
The prebiotic relevance of mineral struvite, MgNH4PO4·6H2O, was studied experimentally as a phosphorylating reagent and, theoretically, to understand the geochemical requirements for its formation.
Matthew A. Pasek, Maheen Gull
doaj   +1 more source