scholarly journals Hydroxyapatite (HAp) From Tenggiri Fish Bones As Abrasive Material In Toothpaste Formula

2021 ◽  
Vol 7 (1) ◽  
pp. 1-9
Author(s):  
Lia Anggresani ◽  
Yoli Nopita Sari ◽  
Rahmadevi Rahmadevi

Cavities are one of the factors of dental and oral health problems that can be prevented by brushing teeth using toothpaste. Toothpaste can be made from a variety of chemicals, one of which is hydroxyapatite (HAp) which has good biocompatible properties. Hydroxyapatite can be obtained by utilizing tenggiri fish bone waste which has the main element of calcium. Fish bones soaked with NaOH and acetone are then calcined at 800 °C for 3 hours to obtain CaO powder and characterized its elemental content using X-Ray Fluorescence (XRF). CaO obtained was then reacted with (NH4)2HPO4 with a mole ratio of Ca/P 1.67 then heated at 90 °C, added NaOH up to pH 12, then the obtained deposits are filtered and calcined at 900 °C.  The solids obtained from the calcination are then characterized using X-Ray Diffraction (XRD) and Scanning Electron Microscope (SEM). Hydroxyapatite (HAp) was formulated into toothpaste with the concentrations of 0% (F0), 45% (F1), 50% (F2), and 55% (F3). Toothpaste was evaluated using organoleptic tests, homogeneity tests, foam height tests, dispersability tests, pH and hedonic tests. XRD analysis shows that the resulting hydroxyapatite (HAp) has a crystal structure in accordance with ICSD standard No. 96-900-3549. SEM analysis showed that granular particles measuring 0.1 μm–0.3 μm in size. All formulated toothpastes (F0, F1, F2, and F3) meet the requirements of a good toothpaste.  Hydroxyapatite (HAp) can be formulated into a good toothpaste with a concentration of 45%.

2021 ◽  
Vol 1 (1) ◽  
pp. 1-9
Author(s):  
Lia Anggresani ◽  
Yoli Nopita Sari ◽  
Rahmadevi Rahmadevi

Cavities are one of the factors of dental and oral health problems that can be prevented by brushing teeth using toothpaste. Toothpaste can be made from a variety of chemicals, one of which is hydroxyapatite (HAp) which has good biocompatible properties. Hydroxyapatite can be obtained by utilizing tenggiri fish bone waste which has the main element of calcium. Fish bones soaked with NaOH and acetone are then calcined at 800 °C for 3 hours to obtain CaO powder and characterized its elemental content using X-Ray Fluorescence (XRF). CaO obtained was then reacted with (NH4)2HPO4 with a mole ratio of Ca/P 1.67 then heated at 90 °C, added NaOH up to pH 12, then the obtained deposits are filtered and calcined at 900 °C.  The solids obtained from the calcination are then characterized using X-Ray Diffraction (XRD) and Scanning Electron Microscope (SEM). Hydroxyapatite (HAp) was formulated into toothpaste with the concentrations of 0% (F0), 45% (F1), 50% (F2), and 55% (F3). Toothpaste was evaluated using organoleptic tests, homogeneity tests, foam height tests, spreadability tests, pH and hedonic tests. XRD analysis shows that the resulting hydroxyapatite (HAp) has a crystal structure in accordance with ICSD standard No. 96-900-3549. SEM analysis showed that granular particles measuring 0.1 μm–0.3 μm in size. All formulated toothpastes (F0, F1, F2, and F3) meet the requirements of a good toothpaste.  Hydroxyapatite (HAp) can be formulated into a good toothpaste with a concentration of 45%.


2020 ◽  
Vol 840 ◽  
pp. 318-323
Author(s):  
Hestining Ajeng Permatasari ◽  
Rosita Wati ◽  
Rista Mutia Anggraini ◽  
Almukarramah Almukarramah ◽  
Yusril Yusuf

The present work demonstrates a low-cost route to produce hydroxyapatite (HAp) from fish bones (natural source) by a simple heat-treatment process. The produced HAp was characterized by X-ray Diffraction (XRD) and Fourier Transform Infra-Red (FTIR). Energy Dispersive X-ray (EDX) analysis obtained elemental composition that confirmed the presence of Ca and P; then the Ca/P mole ratio was calculated. XRD analysis from Chanos chanos and Calarias batracus bone has produced the diffraction peaks at 31.8°, 32.1°, and 32.9° that corresponded to the HAp phase. The presence of functional groups, PO43‒ and OH‒, has been confirmed by FTIR spectra that arecharacteristics of HAp. EDX analysis has shown that the Ca/P mole ratio was similar to the Ca/P mole ratio of the HAp’s stoichiometry (1.66). But actually, not all fish bones can produce pure HAp after the heat-treatment process, such as Tylosurus crocodilus bone. Based on XRD analysis from the main diffraction peak form is a β-TCP phase


2022 ◽  
Author(s):  
Sunita Kumari ◽  
Dhirendra Singhal ◽  
Rinku Walia ◽  
Ajay Rathee

Abstract The present project proposes to utilize rice husk and maize cob husk ash in the cement to mitigate the adverse impact of cement on environment and to enhance the disposal of waste in a sustainable manner. Ternary concrete / MR concrete was prepared by using rise husk and maize cob ash with cement. For the present project, five concrete mixes MR-0 (Control mix), MR-1 (Rice husk ash 10% and MR-2.5%), MR-2 (Rice husk ash 10% and MR-5%), MR-3 (Rice husk ash 10% and MR-2.5%), MR-4 (Rice husk ash 10% and MR-2.5%) were prepared. M35 concrete mix was designed as per IS 10262:2009 for low slump values 0-25mm. The purpose is to find the optimum replacement level of cement in M35 grade ternary concrete for I – Shaped paver blocks.In order to study the effects of these additions, micro-structural and structural properties test of concretes have been conducted. The crystalline properties of control mix and modified concrete are analyzed by Fourier Transform Infrared Spectroscope (FTIR), Scanning Electron Microscopy (SEM), and X-Ray Diffraction (XRD). The results indicated that 10% Rice husk ash and 5% maize cob ash replaced with cement produce a desirable quality of ternary concrete mix having good compressive strength. The results of SEM analysis indicated that the morphology of both concrete were different, showing porous structure at 7 days age and become unsymmetrical with the addition of ashes. After 28 day age, the control mix contained more quantity of ettringite and became denser than ternary concrete. XRD analysis revealed the presence of portlandite in large quantity in controlled mix concrete while MR concrete had the partially hydrated particle of alite.


2018 ◽  
Vol 64 (4) ◽  
pp. 381
Author(s):  
Muhammad Tufiq Jamil ◽  
Javed Ahmad ◽  
Syed Hamad Bukhari ◽  
Murtaza Saleem

Rare earth nano sized pollycrystalline orthoferrites and orthocromites ReT mO3 (Re = La, Nd, Gd, Dy, Y and T m = Fe, Cr) have been synthesized by sol-gel auto combustion citrate method. The samples have been characterized by means of X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX), and UV-visible spectroscopy. The samples are single phase as confirmed by XRD analysis and correspond to the orthorhombic crystal symmetry with space group pbnm. Debye Scherer formula and Williamson Hall analysis have been used to calculate the average grain size which is consistent with that of determined from SEM analysis and varied between 25-75 nm. The elemental compositions of all samples have been checked by EDX analysis. Different crystallographic parameters are calculated with strong structural correlation among Re and Tm sites. The optical energy band gap has been calculated by using Tauc relation estimated to be in the range of 1.77 - 1.87 eV and 2.77 - 3.14 eV, for ReFeO3 and ReCrO3, respectively.


2015 ◽  
Vol 35 ◽  
pp. 21-26 ◽  
Author(s):  
Susmita Das ◽  
Vimal Chandra Srivastava

Metal oxide nanocomposite (ZnO-CuO) was successfully synthesized by one step homogeneous coprecipitation method and further characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron micrograph (SEM), X-ray diffraction analysis (XRD) and UV-visible diffuse reflectance spectra. XRD analysis exhibited presence of pure copper oxide and zinc oxide within the nanocomposite. SEM analysis indicated that the ZnO-CuO nanocomposite was consisted of flower shaped ZnO along with leaf shaped CuO. Photocatalytic activity of nanocomposite was evaluated in terms of degradation of methylene blue (MB) dye solution under ultra-violet radiation. Results showed that the photocatalytic efficiency of ZnO-CuO nanocomposite was higher than its individual pure oxides (ZnO or CuO).


2020 ◽  
Vol 307 ◽  
pp. 339-344
Author(s):  
Ishak Qayyum Afiqah ◽  
Nik Aziz Nik Ali ◽  
Abd Majid Siti Nurhaziqah ◽  
Hasiah Salleh

Age of monstrous amount of underutilized marine processing byproducts has been perceived as waste and many effort were given to utilize these materials in various application. With an incredible number of study on these byproducts, some compound were identified and apply for human utilization. Hydroxyapatite (HAp) is the main inorganic calcium phosphate mineral with excellent osteoconductivity, good bioactivity and biocompatibility. The production of HAp powder from synthetic process involves many chemicals with complicated procedures. Due to this matter, the raw HAp powder was extracted from natural sources selayang fish bones. Extortion process started with boiling fish bones to eliminate adherent fish meats. After calcination process fish bone were dried in room temperature before crushed by using grinder to obtain the powder. Next, the powder undergo calcination process at 900°C for 5 hours. The characterization of raw HAp was done via X-ray Diffraction, Fourier Transform Infrared Spectometer, Scanning Electron Microscopy, and Thermogravimetric analysis.


2019 ◽  
Vol 969 ◽  
pp. 169-174
Author(s):  
R. Sivanand ◽  
S. Chellammal ◽  
S. Manivannan

In this paper, the effect of size variation of cadmium sulphide nanocrystallites which have been prepared by precipitation method is analyzed. These prepared samples were studied using X-ray diffraction (XRD), Scanning electron microscopy (SEM), and Energy dispersive analysis of spectroscopy (EDAX) techniques. SEM analysis represents the morphological nature of prepared samples and EDAX indicates the confirmation of elements present in the sample. XRD analysis determines the size of the samples and identifies the structure using miller indices (h k l values) of the nanocrystallies matches with JCPDS. From the XRD analysis, the size variation which depends on dopant, capping agent are discussed and corresponding results are reported in this paper.


2016 ◽  
Vol 720 ◽  
pp. 207-209
Author(s):  
Oguzhan Gunduz ◽  
Osman Kilic ◽  
Nazmi Ekren ◽  
Hasan Gokce ◽  
Cevriye Kalkandelen ◽  
...  

Hydroxyapatite (HA) is produced from animal sources like bovine-sheep bones and from human sources with different techniques. Nowadays, it is very crucial utilizing higher valued products from waste materials. Especially, fish bones become major sources for HA production. We have used the waste bone of "Atlantic Bonito" (Sarda sarda), which is a very characteristic fish species. It lives through Atlantic Ocean, the Mediterranean Sea and up to the Black Sea, where it is regarded as a point commercial fish. In this study, the fish bones of "Atlantic Bonito" (Sarda sarda) were collected and cleaned from flesh and greasy parts with distilled boiling water. It was washed again with distilled water, dried and calcinated for 4 hours at 850 °C. Afterwards the material was analysed by X-ray diffraction (XRD) and scanning electron microscope (SEM). XRD analysis revealed the obtained bioceramic material is made of 66.7% HA and 33.3% TCP. The fish bone of “Atlantic Bonito” (Sarda sarda) can be easily trandformed to bioceramic material and it can be used in applications where partly resorbable and economic biomaterials with low carbon footprint needed.


2012 ◽  
Vol 620 ◽  
pp. 12-16 ◽  
Author(s):  
Abdul Rashid Jamaludin ◽  
Shah Rizal Kasim ◽  
Zainal Arifin Ahmad

The effects of calcium carbonate (CaCO3) addition on the physical properties of ZnO-based crystal glaze batches were investigated. Samples were fired at different gloss firing temperatures ranging from 1180-1220°C with 3 hours soaking at 1060°C crystallization temperature. X-ray diffraction (XRD) analysis identifiedthe crystal phase occurred as willemite (Zn2SiO4) and the scanning electron microscope (SEM) analysis indicated that willemite crystals are in the acicular needle like shape that formed spherulite. The intensities of willemite peaks decreased with CaCO3 addition and completely vanished at 5.0 wt% CaCO3. Varied formation of spherulites developed of the surface of crystal glaze as the flows of the glaze stretched further as the amount of CaCO3 increased.


2014 ◽  
Vol 602-603 ◽  
pp. 985-988
Author(s):  
Xi Xin Wang ◽  
Ji Jing Liu ◽  
Zhi Qiang Fu ◽  
Sheng Ying Yang ◽  
Jian Ling Zhao

In this work, sodium tantalate (NaTaO3) microrods were successfully prepared by anodic oxidation of tantalum in 30% NaOH electrolyte. The morphology and structure of microrods were characterized by scanning electronic microscope (SEM), energy dispersive spectrometer (EDS) and X-ray diffraction (XRD), respectively. SEM analysis shows the formation of microrods with an average length of 12.8 μm and a diameter of 2.3 μm. XRD analysis reveals that the as-prepared microrods are amorphous. After annealing in nitrogen at 800 °C, the amorphous NaTaO3 microrods transform into orthorhombic structure. Experimental results indicate that the microrods have a high photoelectrochemical property. The possible formation mechanism of NaTaO3 microrods has also been discussed.


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