Low-pressure synthesis and characterisation of hydroxyapatite derived from mineralise red algae

Pamela Walsh, Fraser Buchanan, Matthew Dring, Christine Maggs, Steven Bell, Gavin Walker

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

There is a great need to design functional bioactive substitute materials capable of surviving harsh and diverse conditions within the human body. Calcium-phosphate ceramics, in particular hydroxyapatite are well established substitute materials for orthopaedic and dental applications. The aim of this study was to develop a bioceramic from alga origins suitable for bone tissue application. This was achieved by a novel synthesis technique using ambient pressure at a low temperature of 100 degrees C in a highly alkaline environment. The algae was characterised using SEM, BET, XRD and Raman Spectroscopy to determine its physiochemical properties at each stage. The results confirmed the successful conversion of mineralised red alga to hydroxyapatite, by way of this low-pressure hydrothermal process. Furthermore, the synthesised hydroxyapatite maintained the unique micro-porous structure of the original algae, which is considered beneficial in bone repair applications. (C) 2007 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)173-179
Number of pages7
JournalChemical Engineering Journal
Volume137
Issue number1
DOIs
Publication statusPublished - 15 Mar 2008

Fingerprint

red alga
Durapatite
Algae
Hydroxyapatite
low pressure
alga
bone
alkaline environment
Bone
Raman spectroscopy
Bioceramics
Dental Materials
ceramics
repair
Orthopedics
Calcium phosphate
calcium
scanning electron microscopy
X-ray diffraction
phosphate

Cite this

@article{82b3200fc12041efa9bb0efff9ad961c,
title = "Low-pressure synthesis and characterisation of hydroxyapatite derived from mineralise red algae",
abstract = "There is a great need to design functional bioactive substitute materials capable of surviving harsh and diverse conditions within the human body. Calcium-phosphate ceramics, in particular hydroxyapatite are well established substitute materials for orthopaedic and dental applications. The aim of this study was to develop a bioceramic from alga origins suitable for bone tissue application. This was achieved by a novel synthesis technique using ambient pressure at a low temperature of 100 degrees C in a highly alkaline environment. The algae was characterised using SEM, BET, XRD and Raman Spectroscopy to determine its physiochemical properties at each stage. The results confirmed the successful conversion of mineralised red alga to hydroxyapatite, by way of this low-pressure hydrothermal process. Furthermore, the synthesised hydroxyapatite maintained the unique micro-porous structure of the original algae, which is considered beneficial in bone repair applications. (C) 2007 Elsevier B.V. All rights reserved.",
author = "Pamela Walsh and Fraser Buchanan and Matthew Dring and Christine Maggs and Steven Bell and Gavin Walker",
year = "2008",
month = "3",
day = "15",
doi = "10.1016/j.cej.2007.10.016",
language = "English",
volume = "137",
pages = "173--179",
journal = "Chemical Engineering Journal on granulation processing, Special Issue",
issn = "1385-8947",
publisher = "Elsevier",
number = "1",

}

Low-pressure synthesis and characterisation of hydroxyapatite derived from mineralise red algae. / Walsh, Pamela; Buchanan, Fraser; Dring, Matthew; Maggs, Christine; Bell, Steven; Walker, Gavin.

In: Chemical Engineering Journal, Vol. 137, No. 1, 15.03.2008, p. 173-179.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Low-pressure synthesis and characterisation of hydroxyapatite derived from mineralise red algae

AU - Walsh, Pamela

AU - Buchanan, Fraser

AU - Dring, Matthew

AU - Maggs, Christine

AU - Bell, Steven

AU - Walker, Gavin

PY - 2008/3/15

Y1 - 2008/3/15

N2 - There is a great need to design functional bioactive substitute materials capable of surviving harsh and diverse conditions within the human body. Calcium-phosphate ceramics, in particular hydroxyapatite are well established substitute materials for orthopaedic and dental applications. The aim of this study was to develop a bioceramic from alga origins suitable for bone tissue application. This was achieved by a novel synthesis technique using ambient pressure at a low temperature of 100 degrees C in a highly alkaline environment. The algae was characterised using SEM, BET, XRD and Raman Spectroscopy to determine its physiochemical properties at each stage. The results confirmed the successful conversion of mineralised red alga to hydroxyapatite, by way of this low-pressure hydrothermal process. Furthermore, the synthesised hydroxyapatite maintained the unique micro-porous structure of the original algae, which is considered beneficial in bone repair applications. (C) 2007 Elsevier B.V. All rights reserved.

AB - There is a great need to design functional bioactive substitute materials capable of surviving harsh and diverse conditions within the human body. Calcium-phosphate ceramics, in particular hydroxyapatite are well established substitute materials for orthopaedic and dental applications. The aim of this study was to develop a bioceramic from alga origins suitable for bone tissue application. This was achieved by a novel synthesis technique using ambient pressure at a low temperature of 100 degrees C in a highly alkaline environment. The algae was characterised using SEM, BET, XRD and Raman Spectroscopy to determine its physiochemical properties at each stage. The results confirmed the successful conversion of mineralised red alga to hydroxyapatite, by way of this low-pressure hydrothermal process. Furthermore, the synthesised hydroxyapatite maintained the unique micro-porous structure of the original algae, which is considered beneficial in bone repair applications. (C) 2007 Elsevier B.V. All rights reserved.

UR - http://www.scopus.com/inward/record.url?scp=38949143971&partnerID=8YFLogxK

U2 - 10.1016/j.cej.2007.10.016

DO - 10.1016/j.cej.2007.10.016

M3 - Article

VL - 137

SP - 173

EP - 179

JO - Chemical Engineering Journal on granulation processing, Special Issue

JF - Chemical Engineering Journal on granulation processing, Special Issue

SN - 1385-8947

IS - 1

ER -