Biomass-derived porous crystalline calcium-silicates synthesized from chicken eggshell waste using organic amine templates
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European Journal of Inorganic Chemistry
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Uncontrollable hemorrhage is a major cause of mortality in accidents,
trauma, and medical procedures, highlighting the need
for effective hemostatic agents. Zeolites and similar materials
are promising due to their adsorption properties and ability to concentrate
coagulation factors. This study reports the synthesis of calcium-
silicates from chicken eggshell waste using TEA.OH, TPA.OH,
and TBA.OH as templates. TPA.OH and TBA.OH direct the formation
of rhodesite, a fibrous calcium-silicate, while TEA.OH results in
quartz. Materials synthesized with TPA.OH and TBA.OH have surface
areas of 53.3–100.3m2 g 1 and mesopores ranging from 5.7 to
27.7 nm with pore volumes of 0.018–0.11 cm3 g 1. In vitro coagulation
assays (PT, aPTT) revealed that CaZ-3 and CaZ-4 activate
factors within the contact system. The recalcification assay shows
a significant reduction in clotting time, indicating action via the
intrinsic pathway. Thromboelastographic analysis confirms high
hemostatic performance: the material prepared with TBA.OH
shows a shorter clot formation time (R=1.8 0.5min) and higher
maximumclot strength (MA=52.1 1.3mm) than QuikClot, demonstrating
its potential as an effective, waste-derived hemostatic
agent.
Como referenciar
GUARNIERI, GUILHERME de P.; SANTISTEBAN, OSCAR A.N.; CANCELLA, ERICK P.; AZEVEDO, EDUARDO R. de; COSENTINO, IVANA C.; MERCURI, LUCILDES P.; SANTORO, MARCELO L.; GODOY, MOACIR F. de; NERY, JOSE G. Biomass-derived porous crystalline calcium-silicates synthesized from chicken eggshell waste using organic amine templates: a case study for potential hemostatic application. European Journal of Inorganic Chemistry, v. 28, n. 26, p. 1-13, 2025. DOI: 10.1002/ejic.202500227. Disponível em: https://repositorio.ipen.br/handle/123456789/49518. Acesso em: 24 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.