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Sensing of Toxic Metals Using Innovative Sorption-Based Technique
Published in Arup K. Sengupta, Ion Exchange and Solvent Extraction, 2017
Chatterjee Prasun K., SenGupta Arup K.
Akermanite is a mineral of sorosilicate (Si2O4)6- groups with major elements calcium, magnesium, silicon, and oxygen and named for Anders Richard Akerman, a Swedish metallurgist.47 The akermanite sample used for synthesizing HIM is originally from Vesuvius, Italy, with the mineralogical data shown in Table 6.4. The chemical composition of the akermanite sample suggests primary components of calcium magnesium silicate with minor contributions from Al2O3 and FeO.47–49Figure 6.10b exhibits a photograph of a akermanite rock that is an off-white translucent crystal.50 The akermanite sample was ground, washed with DI water, and air dried before using for HIM synthesis.
Bioceramic Nanoparticles for Tissue Engineering
Published in Harishkumar Madhyastha, Durgesh Nandini Chauhan, Nanopharmaceuticals in Regenerative Medicine, 2022
A lot of studies have been reported on Ca-, Mg-, and Si-containing a new class of bioactive ceramic particles, which are capable of stimulating cell proliferation and activating osteoblast forming gene expression. Particularly, Mg-containing silicate bioactive ceramics such as magnesium hydroxide, diopside, and bredigite have shown exceptional abilities to promote osteoblast activity in bone tissue reconstruction supporting thermal and electrical requirements for bone implants and porous scaffolds (Xu et al. 2009, Janning et al. 2010, Wu et al. 2010, Kalantari et al. 2017, Sahmani et al. 2018). A novel calcium silicate bioceramic nanocomposite monticellite (CaMgSiO4 with 33.33% of Mg) has been found to have increased in vitro cytocompatibility and osteogenic activity, and anti-biofilm and anti-bacterial activity because of the existence of elements Mg, Si, and Ca in the composition (Kalantari et al. 2017, Kalantari et al. 2018). Similarly, another silicate-based bioactive ceramic akermanite (Ca2MgSi2O7) have been reported to have osteoinduction capability (Dehsheikh and Karamian 2016) when used in either form (powder or bulk). Akermanite is a newly reported bioceramic; a melilite mineral of the sorosilicate class containing magnesium, calcium, silicon, and oxygen elements which distinguished it from other inorganic bioceramics (Dehsheikh and Karamian 2016). In a recent study, akermanite nanoparticles have been used for coating surface-modified electrospun nanofibrous poly-L-lactic acid (PLLA)-based scaffolds, and their effect on the growth and osteogenic divergence of human adipose tissue-derived mesenchymal stem cells (hAMSCs) has been studied (Nafary et al. 2017). In their study, they have reported that surface modification of PLLA nanofibrous scaffolds coated with akermanite nanoparticles divulged elevated capabilities in the support growth and differentiation of hAMSc in osteogenic lineage, showing an increased level of bone-forming markers like ALP activity, Ca deposition, and osteogenic gene expression (Nafary et al. 2017).
Stabilisation of clayey and sandy soils with ladle furnace slag fines for road construction
Published in Road Materials and Pavement Design, 2023
Emerson Cordeiro Lopes, Taciano Oliveira da Silva, Heraldo Nunes Pitanga, Leonardo Gonçalves Pedroti, José Maria Franco de Carvalho, Gustavo Henrique Nalon, Gustavo Emilio Soares de Lima, Eduardo Nery Duarte de Araújo
Another mineralogical phase was akermanite (Ca2MgSi2O7), a calcium and magnesium silicate that is commonly observed in slags. It is known that akermanite and gehlenita [Ca2Mg(Si2O7)] are mineralogical phases that improve hydraulic activities, which suggests the technical viability of using the FLF as binder materials (Junior et al., 2011).