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All Journal Eksergi: Chemical Engineering Journal Jurnal Kimia Riset
Agung Rimayanto Gintu
Magister Biologi UKSW
Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Biokeramik Hidroksiapatit (HAp) Berbahan Dasar Cangkang Tiram Anodonta nuttaliana dari Danau Poso Agung Rimayanto Gintu; Elizabeth Betty Elok Kristiani; Yohanes Martono
Eksergi Vol 17, No 2 (2020)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v17i2.3758

Abstract

Bioceramic Hydroxyapatite (HAp) was a derivated chemical synthetic compound from calcium phosphate commonly used to care the damage of hard tissues. Bioceramic Hydroxyapatite can synthetized from the compounds which rich with calcium contains. In this study threated the synthesis and physicochemical characterization to the HAp made from Anodonta nuttaliana clam shells obtained from Poso lake. From the characterization of the sample A. nuttaliana shells obtained the water contains 0,50±0,00%; ash contains 0,9827±0,0022g/g; potasium 0,00135±0,0002g/g; calcium 0,0165±0,0034g/g; phosphate 0,1920±0,0424g/g and the ratio of Ca/P 1,9389±0,3039%. The synthesis of HAp by base precipitation method showed the yield of synthesis 95,4320±0,7085% with the characteristic of the HAp showed that the potassium contains 0,0005±0,00004g/g; calcium 0,95476±0,0012g/g; phosphate 0,528±0,0075; ratio of Ca/P 1,0307±0,0932%; porosity 73,9598±1,1320%; swelling ability 9,6067±2,5365%; and biodegradability 8,8206±0,2176%. From the overall results concluded that the A. nuttaliana clam shells was very potential to became a source of Bioceramic Hydroxyapatite (HAp).
Karakterisasi Pasta Gigi Berbahan Abrasif Hidroksiapatit (HAp) Agung Rimayanto Gintu; Elizabeth Betty Elok Kristian; Yohanes Martono
Jurnal Kimia Riset Vol. 5 No. 2 (2020): Desember
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v5i2.22503

Abstract

Tootpaste was a product for dental care to clean, beautify and replace the minerals decay from the dent surface. To prevent the damage of the mineral layers on the surface, added the remineralitation compounds in the formula of the toothpaste. The remineralitation agents commonly add was CaCO3 and CaPO4, during the technological development the calcium compounds added was calcium in nano size like Hydroxyapatite (HAp). In this study produced the contains abrasive HAp and CaCO3 with the mix ratio  CaCO3, 50:50 (HAp:CaCO3) and HAp. The characterization to the toothpaste with CaCO3 abrasive showed the Calcium contains 21,10 ± 0,0577%; dispersibility 936,37 ± 39,42gcm/s; pH 8,3 ± 0,00; and viscosity 25 ± 0,00 P.a. The toothpaste with CaCO3:HAp (50:50) abrasive showed the Calcium contains 27,03 ± 0,0333%; dispersibility 931,93 ± 22,62gcm/s; pH 8,8 ± 0,00; and viscosity 27 ± 0,00 P.a. The toothpaste with HAp abrasive showed the Calcium contains 27,67 ± 0,0882%; dispersibility 987,33 ± 39,50gcm/s; pH 8,9 ± 0,00; and viscosity 27,5 ± 0,00 P.a. The contamination of microbiology did not found in all of the toothpastes along the storage. Based on the entire organoleptic test against the toothpastes, the formula of toothpaste with the mix of CaCO3:HAp was les liked.
Sintesis dan Karakterisasi Carbon Nanotube (CNt) dari Arang Kayu Jati serta Pemanfaatannya Sebagai Bahan Aktif Antibakteri Agung Rimayanto Gintu; Dhanang Puspita
Jurnal Kimia Riset Vol. 5 No. 2 (2020): Desember
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v5i2.22505

Abstract

Carbone Nanotube (CNt) was one of antibacterial compound synthesized from carbon pr activated carbon. In this study threated the synthesis of CNt from teak charcoal used strong acid and sonication. The rendement of CNt synthesis showed potential result 37,6555±0,8038%. The characterization to the CNt showed density 1,0145±0,0037g/cc; Absolute Viscosity 1,06±0,0245P.a; Molecule weight 0,0007±0,00002g/mol. Threated the metal ionic doped to the CNt solution used Ag, Cu, Fe(II), Fe(III). Mg and Zn to increase the stabilitation and interaction. The characterization of CNt-Ag showed density 1,0072±0,0055g/cc; Absolute Viscosity 0,66±0,0400P.a; Molecule weight 0,0007±0,00004g/mol. The characterization of CNt-Cu showed density 1,0086±0,0040g/cc; Absolute Viscosity 0,56±0,0400P.a; Molecule weight 0,0007±0,00003g/mol. The characterization of CNt-Fe(II) showed density 1,0060±0,0013g/cc; Absolute Viscosity 0,76±0,0400P.a; Molecule weight 0,0007±0,000001g/mol. The characterization of CNt-Fe(III) showed density 1,0159±0,0042g/cc; Absolyte Viscosity 0,82±0,0200P.a; Molecule weight 0,0007±0,00003g/mol. Characterization of CNt-Mg showed density 0,9970±0,0008g/cc; Absolute Viscosity 0,64±0,0400P.a; Molecule weight 0,0007±0,000005g/mol. Characterization of CNt-Zn showed density 1,0013±0,0013g/cc; Absolute Viscosity 0,60±0,0447P.a; Molecule weight 0,0007±0,000005g/mol. Threated the mix to the CNt by another antibacterial compounds like Hydroxyapatite (HAp), Chitosan and Nano Chitosan. From the characterization of CNt-HAp obtained density 1,0008±0,0010g/cc; Absolute Viscosity 0,60±0,0316P.a; Molecule weight 0,0007±0,000007g/mol. Characterization CNt-Chitosan obtained density 0,9992±0,0019g/cc; Absolute Viscosity 0,42±0,0200P.a; Molecule weight 0,4343±0,0207g/mol. Characterization CNt-Nano Chitosan obtained density 1,0084±0,0002g/cc; Absolute Viscosity 0,50±0,0316P.a; Molecule weight 0,5170±0,3270g/mol. The results of antibacterial activity measurements against E.coli bacteries showed that all of the threatment to the chars produced the antibacterial activity in middle to strong range.
Co-Authors Dhanang Puspita Elizabeth Betty Elok Kristiani Yohanes Martono