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A comparative X-ray diffraction analysis of Srsubstituted hydroxyapatite from sand lobster shell waste using various methods.
Heliyon
January 2025
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia.
This study aims to investigate the crystallographic properties of hydroxyapatite (HAp) and strontium-substituted hydroxyapatite (SrHAp) obtained from sand lobster shells (SLS) using various analytical methods. HAp and SrHAp were synthesized by the hydrothermal method using sand lobster () shell waste as a calcium precursor. SLS were calcined at 0 °C, 600 °C, 800 °C, and 1000 °C and characterized by X-ray diffraction (XRD).
View Article and Find Full Text PDFGeochemical signatures and nanomechanical properties of echinoid tests from nearshore habitats of Florida: environmental and physiological controls on echinoid biomineralization.
PeerJ
January 2025
Florida Museum of Natural History, University of Florida, Gainesville, FL, United States of America.
The mechanisms that regulate minor and trace element biomineralization in the echinoid skeleton can be primarily controlled biologically (, by the organism and its vital effects) or by extrinsic environmental factors. Assessing the relative role of those controls is essential for understanding echinoid biomineralization, taphonomy, diagenesis, and their potential as geochemical archives. In this study, we (1) contrast geochemical signatures of specimens collected across multiple taxa and environmental settings to assess the effects of environmental and physiological factors on skeletal biomineralogy; and (2) analyze the nanomechanical properties of the echinoid skeleton to assess potential linkages between magnesium/calcium (Mg/Ca) ratios and skeletal nanohardness.
View Article and Find Full Text PDFAltitude-Driven Variations in Nutritional, Bioactive, and Mineral Profiles of Hawthorn ( spp.).
Foods
January 2025
Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing 100081, China.
Hawthorn ( spp.), a plant widely distributed in temperate and subtropical regions, is valued for its bioactive compounds and diverse health benefits. Known for its remarkable adaptability to various environmental conditions, hawthorn thrives across different altitudes, but these environmental factors, particularly altitude, significantly influence the accumulation of its bioactive substances.
View Article and Find Full Text PDFDose-dependent enhancement of in vitro osteogenic activity on strontium-decorated polyetheretherketone.
Sci Rep
January 2025
School of Pharmacy, Medical Imaging Key Laboratory of Sichuan Province, North Sichuan Medical College, Nanchong, China.
Polyetheretherketone (PEEK) is widely used in orthopedic and dental implants due to its excellent mechanical properties, chemical stability, and biocompatibility. However, its inherently bioinert nature makes it present weak osteogenic activity, which greatly restricts its clinical adoption. Herein, strontium (Sr) is incorporated onto the surface of PEEK using mussel-inspired polydopamine coating to improve its osteogenic activity.
View Article and Find Full Text PDFOsseointegration Process Improving via Functionalization of Titanium Dioxide Nanotubes: A Bibliometric Analysis and Systematic Review.
Curr Top Med Chem
January 2025
Laboratório de Patogenicidade Microbiana, Universidade CEUMA, São Luís 65075-120, MA, Brasil.
Introduction/objectives: Failures of osseointegrated implants pose a significant challenge in the medical field, often attributed to prolonged osseointegration periods and bacterial infections. Functionalization of Titanium Dioxide Nanotubes (TNTs) has emerged as a promising strategy to improve osseointegration and mitigate infections. This study aims to conduct a bibliometric analysis and systematic review to identify trends, gaps, and advancements in research on the functionalization of TNTs for osseointegration improvement.
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