Bioactivity and Biocompatibility Properties of Sustainable Wollastonite Bioceramics from Rice Husk Ash/Rice Straw Ash: A Review

Abstract

Recently, there has been an increase in interest in agricultural waste in scientific, technological, environmental, economic, and social contexts. The processing of rice husk ash/rice straw ash into biocompatible products—also known as biomaterials—used in biomedical implants is a technique that can enhance the value of agricultural waste. This method has effectively converted unprocessed agricultural waste into high-value products. Rice husk and straw are considered to be unwanted agricultural waste and are largely discarded because they pollute the environment. Because of the related components present in bone and teeth, this waste can produce wollastonite. Wollastonite is an excellent material for bone healing and implants, as well as tissue regeneration. The use of rice husk ash or rice straw ash in wollastonite production reduces the impact of agricultural waste on pollution and prompts the ensuing conversion of waste into a highly beneficial invention. The use of this agricultural waste in the fabrication of wollastonite using rice husk ash or rice straw ash was investigated in this paper. Wollastonite made from rice husk ash and rice straw ash has a fair chance of lowering the cost of bone and tooth repair and replacement, while having no environmental effects.

Fabrication and Properties of the Montmorillonite/Nanobioglass Hybrid Reinforcement from Agroindustrial Waste for Bone Regeneration

“…9 Additionally, the use of some residues for biomaterials could stimulate the development of osteoblasts and the delivery of anticancer drugs, reducing the cost of raw materials without causing environmental effects. 10 Regarding hard tissues, their repair processes require bone growth factors such as hormones, substances containing calcium, iron, and silica, and compatible cells. Thus, the bone composition is characterized by about 30% collagen, 5% noncollagenous fibers, and 65% hydroxyapatite crystals.…”

“…In parallel, (agro)­industrial waste constitutes a major socio-environmental problem since most of it is incorrectly disposed of and/or disposed of without due care, leading to environmental liabilities, such as rice husk containing silica and residual sludge containing alumina . Additionally, the use of some residues for biomaterials could stimulate the development of osteoblasts and the delivery of anticancer drugs, reducing the cost of raw materials without causing environmental effects …”

Ceramic Materials for Biomedical Applications: An Overview on Properties and Fabrication Processes

“…In this article, a brief review of the fundamental physical, chemical, and mechanical properties of ceramic biomaterials is given, and the various types are described according to the international literature. The biocompatibility of the materials to a biological environment surrounding a ceramic implant is highlighted [ 10 ]. Several insights concerning primary applications in biomedical fields, such as orthopedics, dentistry, and bone-tissue engineering, are provided.…”

Preparation and structural characteristics of biphasic calcium phosphates from prawn shell bio-waste

“…Among all these, hydroxyapatite (HA, Ca 10 (PO 4 ) 6 (OH) 2 ) is a widely used bioceramic material in bone tissue engineering due to its chemical composition, similar to human bone and physical properties [6]. In addition to that, HA has excellent bioactivity and biocompatibility [7,8]. The mechanical stability of HA is high, and it is osteoconductive.…”