Article Per Year (5 Year)
p-Index From 2020 - 2025
1.789
P-Index
This Author published in this journals
All Journal HAYATI Journal of Biosciences Reaktor Journal of Medical Physics and Biophysics Science and Technology Indonesia Indonesian Journal of Pure and Applied Chemistry Jurnal Jamu Indonesia Indonesian Physical Review JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Jurnal Sains Materi Indonesia Indonesian Journal of Jamu
Yessie Widya Sari
Department Of Physic, Faculty Of Mathematics And Natural Sciences, IPB University, Bogor, Indonesia; Tropical Biopharmaca Research Center, IPB University, Bogor, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health Other

Published : 13 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 13 Documents
Search

 1   2 
The Effect of Casein Addition in Carbonate Apatite Mineral Crystallization Nur Aisyah Nuzulia; Savitri Damayanti; Serin Imsa Arizuni; Yessie Widya Sari
Journal of Medical Physics and Biophysics Vol 6, No 1 (2019)
Publisher : Indonesian Association of Physicists in Medicine (AIPM/AFISMI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (514.824 KB)

Abstract

Milk protein has been considered as one of the influenced factors in bone mineral crystallization. Bone mineral is mainly formed by carbonate apatite in which the crystallization process depends on the two main processes, nucleation and crystal growth. This study showed the formation of carbonate apatite by using precipitation method and observed the influence of casein, milk protein, in carbonate apatite nucleation through synthesis and crystal growth through immersion in SBF.  The result showed that carbonate apatite type B was formed by using precipitation method with chicken eggshells as calcium precursor. The addition of casein concentration could promote the apatite nucleation and crystal growth with low casein concentration ( ≤ 7.5 g.l-1) while high casein concentration addition plays role as an inhibitor.
Composition of Human Bone Mineral by FTIR and Its Relationship to the Age Djarwani S. Soejoko; Yessie Widya Sari; Setia Utami Dewi; Nurizati Nurizati; Kiagus Dahlan; Djaja Surya Atmadja
Journal of Medical Physics and Biophysics Vol 1, No 1 (2014): Inaugural Issue
Publisher : Indonesian Association of Physicists in Medicine (AIPM/AFISMI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1041.577 KB)

Abstract

Deproteinated human bone with hydrazine indicated that percentage of bone mass mineral increased with individual age in the range of child to adult, and then slowly decreased with ageing. Type of bone and sex also influenced the proportional of mineral in bone. Several information was obtained from infrared spectroscopy measurements. Calcium phosphate in bone mineral was a mixture of amorphous calcium phosphates and apatite crystals that rich of carbonates. Most crystals were carbonate apatite type B, with additional small amount of type A and AB. The splitting factor of υ4 phosphate bands indicated that crystalline degree was regulated by age, increases in the range of child to adult, then decrease up to a certain value (0.16) and finally almost constant. It is predicted that apatite crystals that was formed with less calcium phosphate will accompanied by the insertion of crystallization water in order to maintain the constancy of bone volume.
Injectable Bone Substitute Synthesized from Mangrove Snail Shell Yessie Widya Sari; Reza Pahlevi Rudianto; Nur Aisyah Nuzulia; Sulistioso Giat Sukaryo
Journal of Medical Physics and Biophysics Vol 4, No 1 (2017)
Publisher : Indonesian Association of Physicists in Medicine (AIPM/AFISMI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (503.247 KB)

Abstract

The need for biomaterials tends to increase especially in the field of medicine caused by cases of increasing bone damage. The biomaterial that is being developed for bone implants is hydroxyapatite (HAp). The high value of imports of bone-replacement biomaterials in Indonesia is conidered as a thoughtful problem because of the high price, therefore the development of biomaterials used as a substitute for bone derived from natural materials. In this study, HAp in the form of an injectable bone substitute (IBS) was syntehsized. IBS is a bone-substitute material in the form of a suspension. IBS can be applied by injection to reach deeper areas of bone defects and be able to adjust the shape of bone or tooth defects properly. HAp was synthesized in this study with assistance of microwave irradiation. Mangrove snail shell was used as calcium sources. Furthermore, this study indicated that HAp synthesized from mangrove snail shell had a high potency to be developed as IBS.
The Effect of Variation of Raw Material Ratio on Hydrogel Based on K-Carrageean - Acrylamide as a Carrier of Ammonium Nitrate Fertilizer Hendrawan Laksono; Mersi Kurniati; Yessie Widya Sari; Christina Winarti
Reaktor Volume 21 No. 3 September 2021
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (403.328 KB) | DOI: 10.14710/reaktor.21.3.103-108

Abstract

Hydrogels based on natural polymers such as carrageenan are currently being developed to improve efficiency in agriculture. By enriching hydrogels with fertilizers, they will be released slowly into the soil. Enrichment of fertilizers on carrageenan-based hydrogels was carried out and analyzed with the response of swelling ability, gel fraction value of grafting degree, to the hydrogel's ability to release the fertilizer trapped in it. Carrageenan is used because its use as a natural polymer has not been widely explored, especially in the non-food sector. The results showed that the average swelling value of carrageenan-based hydrogel to ammonium nitrate solution ranged from 750.00% - 1,633.33%. The gel fraction values obtained ranged from 74.06% to 87.51%, and the degree of grafting ranged from 85.33% to 93.59%. These values indicate a relatively high degree of tissue density and grafting of acrylamide monomer on carrageenan, which means that the carrageenan:AAm based hydrogel has strong mechanical properties. The ability to release ammonium nitrate samples from the hydrogel carrageenan-based has a value ranging from 8.86% to 44.92% in five days of observation. Interpretation of the test results, the best ratio of carrageenan:AAm is 1:1, due to its relatively low release value but still has good swelling and mechanical properties.Keywords: Hydrogel; Carrageenan; Acrilamyde; Fertilizer release
VARIATION OF SINTERING TEMPERATURE IN THE SYNTHESIS OF FLUORAPATITE FROM SNAIL SHELLS (Achatina fulica) USING THE SOL-GEL METHOD Charlena Charlena; Yessie Widya Sari; Wulan Islamia
Indonesian Journal of Pure and Applied Chemistry Vol 6, No 3 (2023)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v6i3.67697

Abstract

Dental caries can cause porous cavities and even broken teeth, necessitating natural teeth extraction and replacement with implants. Fluorapatite, a dental implant material, can be synthesized from snail shells containing 98% calcium carbonate. This study aims to identify the characteristics of fluorapatite and determine the effect of variations in sintering temperature on the synthesis of fluorapatite made from snail shells using the sol-gel method. Variations of sintering temperature used are 700, 900, and 1100 °C. The results showed that fluorapatite synthesized with the sintering temperature of 900 °C demonstrates the highest crystallinity, according to the diffractogram results, there is an 83% presence of the apatite phase at an angle of 31.8126°, with a crystal size of 79 nm and a particle size of 0.5 µm. Fourier-transform infrared spectroscopy analysis on the sample showed the presence of OH, OH−F, and PO43− functional groups. The sample showed a spongy surface morphology with hexagonal-shaped flowers—a Ca/P molarity ratio 1.67
Effect of Precursor Solvent on the Carbon Micro-Structures Derived from Spray Pyrolysis of Pine Resin (Gondorukem): Preliminary Study Jayadi; Wahyu Bambang Widayatno; Agus Sukarto Wismogroho; Cherly Firdharini; Akhiruddin Maddu; Husin Alatas; Yessie Widya Sari
Jurnal Sains Materi Indonesia Vol. 25 No. 2 (2024): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2024.893

Abstract

Carbon materials have been widely used in various fields. This study aimed to produce carbon using spray pyrolysis with pine resin (gondorukem) as the precursor and different solvents, namely gondorukem-acetone (GAC), gondorukem-ethyl acetate (GEA), and gondorukem-dichloromethane (GDC). The precursor was prepared in a 1:8 (m/v) ratio, and the spray pyrolysis method was employed by heating the atomized precursor solution in the heating zone of a tube furnace. The atomization precursor was infused with nitrogen gas at a rate of 1 l/min with furnace temperature set at 1000°C with heating times of 5, 10, and 20 mins. The carbonaceous materials produced from the pyrolysis were collected on the wire mesh 1000 that was put on a stainless pipe. Carbon that has been coated on the wire mesh 1000 was analyzed using the optical microscope (OM). The physical properties and morphology of the synthesized carbonaceous material were analyzed using field emission scanning electron microscopy (FE-SEM), Fourier-transform infrared spectroscopy (FTIR), Raman, and Brunaur-Emmett-Teller (BET). Based on FE-SEM analysis, the particle size of the GAC sample has an average of 283.58 nm and the highest carbon content, which reached an average of 97.312 At%. GAC samples had the lowest disorder properties in the Raman spectroscopy test, with the value of ID/IG reaching 0.795764. The functional groups observed were C–H stretching at 2920.49 cm-1, N–H bending at 1629.07 cm-1, and C–O stretching at 1159.70 cm-1. Based on carbon content, disorder properties, and functional group stabilization, carbon from the GAC precursor provides the ideal characteristics to be used as a filter material in medical masks. Meanwhile, based on BET testing, the carbon materials from GEA have the ideal material morphological properties to be used as a filter in medical masks. Spray pyrolysis is an efficient method for producing carbon materials, and the use of gondorukem as the precursor shows great potential for various applications.
EGGSHELL CALCIUM NANOPARTICLES: A SUSTAINABLE APPROACH TO BOOST BIOGAS PRODUCTION FROM TOFU LIQUID WASTE Yessie Widya Sari; Zia Rausyanfikr Attar; Widyarani Widyarani
Indonesian Physical Review Vol. 7 No. 3 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i3.350

Abstract

This study explored enhancing biogas and methane production from tofu liquid wastewater (TLW) by adding calcium nanoparticles. Eggshell calcium nanoparticles (ECN) in the form of nano Ca (OH)2 were introduced to improve the degradation process. Chicken eggshells were calcined at 1000 °C to create Ca (OH)2 particles, followed by milling to yield ECN. Characterization using X-ray diffraction (XRD) confirmed the presence of Ca (OH)2 in the ECN while scanning electron microscopy (SEM) revealed the irregular morphology of the particles. Energy-dispersive X-ray spectroscopy (EDS) analysis showed calcium and oxygen as the primary elements. To investigate the effect of ECN in enhancing biogas and methane production, we evaluated 3 levels of ECN concentrations during anaerobic fermentation of TLW: 2.5 g/L, 5 g/L. and 7.5 g/L. We observed that adding ECN of 5 g/L during anaerobic digestion improved biogas production. Further, at this concentration, the methane concentration on the biogas was 64%, while on the control samples (without ECN) was only 0.09%. These findings suggested the benefit of ECN supplementation during anaerobic digestion of TLW for biogas production.    
Synthesis of a 3D Porous Multicomponent Bioceramic Scaffold Sari, Yessie Widya; Munir, Ryaas Mishbachul; Saputra, Angga; Sari, Mona; Aminatun; Suciati, Tri; Mohamad, Che Wan Sharifah Robiah; Gunawarman; Yusuf, Yusril
Science and Technology Indonesia Vol. 9 No. 2 (2024): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2024.9.2.235-243

Abstract

In this study, 3D porous multicomponent bioceramic scaffolds were fabricated. Hydroxyapatite (HA) and carbonate-substituted hydroxyapatite (CHA) synthesized from Asian moon scallop shell (Amusium pleuronectes) served as the bioceramics, whereas alginate and chitosan served as the polymeric components. The study was focused on determining whether the presence of polyvinyl alcohol (PVA) in the scaffold exerted an impact. When PVA was not included, the morphological examination revealed that the samples exhibited porous structures characterized by effective pore interconnectivity and a substantial pore size. X-ray diffraction and scanning electron microscopic analyses indicated that the inclusion of PVA led to a decrease in the crystallinity, pore size, and porosity of the scaffolds. Those containing PVA exhibited porosity levels in the range of 56%–60%, and pore sizes ranged from 42 to 90 µm. These properties may provide advantages for the scaffold with respect to the ability for cell migration and cell attachment, thus enhancing new bone formation. Moreover, the compositions of HA and chemically modified HA (CHA) within the scaffold influenced the crystallinity and uniformity of the scaffold morphology. This finding suggests the potential for crafting a customized porous bioceramic scaffold based on specific compositions.
Physical Properties of Bioplastic Composite Synthesized from Sago Waste and Betung Bamboo Activated Carbon Aprilianda, Aprilianda; Budiman, Ismail; Kurniati, Mersi; Sari, Yessie Widya
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 8, No 3 (2023): September 2023
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v8i3.1885

Abstract

Bioplastics are expected to reduce the use of commercial plastics. Several efforts have been made to improve the properties of bioplastics, including the addition of antioxidants or antimicrobial agents. One of the antimicrobial agents is activated charcoal or activated carbon. This study was aimed to investigate the effect of activated carbon addition to the bioplastic composite. Sago waste was utilized as the matrix in the composite, while activated carbon was as filler. Sago waste is the leftover biomass resulted from the sago extraction. The proximate analysis showed that the composition of sago waste was mostly dominated by the fibrous materials followed by protein and fat. The activated carbon was obtained from the treatment of Betung bamboo. The Fourier Transform Infrared (FTIR) spectroscopy indicated that the thermal treatment of Betung bamboo at 175 °C for 5 h resulted The treated sago waste  was immersed in 5% KOH  for 24 h and further dried and then pyrolyzed at 750 °C for 90 min to yield activated carbon. The activated carbon was dominated by the carbonaceous materials. This was also supported by the proximate data indicating the presence of 91% carbonaceous materials in activated carbon.  The Brunauer Emmett Teller (BET) analysis showed that the activated carbon has surface area of 460 m2/g. This activated carbon was then used as filler at bioplastic composites. Two levels of activated carbon percentage on composite were tested, which were 3-5% (% m/v). The mechanical analysis using universal testing machine indicated that the addition of activated carbon reduces the tensile strength and modulus of elasticity. The scanning electron microscopy (SEM) images clearly indicated the presence of activated carbon on the surface of bioplastics.  The data obtained in this study showed the potential of composite sago waste and activated carbon as bioplastics. Further, the activated carbon obtained in this study can serve as an adsorbent, providing possible applications as antibacterial agent. Keywords – Activated Carbon, Biomass, Bioplastic, Composite, Pyrolysis, Sago Waste.
Karakterisasi Sifat Listrik Dan Sifat Termal Hidroksiapatit, Fluorhidroksiapatit Dan Fluorapatit Riano, Riza; Sukaryo, Sulistioso Giat; Sugeng, Bambang; Sari, Yessie Widya; Maddu, Akhiruddin
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 7, No 3 (2022): September 2022
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v7i3.1128

Abstract

The apatite compound that is often used in medicine and dentistry is hydroxyapatite with the chemical formula Ca10(PO4)6(OH)2. Fluor ions can substitute hydroxyl ions from hydroxyapatite to form crystals with the formula Ca (PO4)6(OH)2-xF2x, with the value of x indicating the index number of hydroxyl groups (OH-) replaced by fluor ions (F-). This study aims to determine the effect of fluor ion substitution on hydroxyapatite on electrical properties and thermal stability. In this study, the hydrothermal method was characterized by X-Ray diffractometer (XRD), Fourier Transform Infra-Red Spectroscopy (FTIR), LCR meter, Thermogravimetry Analysis (DTA), and Differential Thermal Analysis (TGA). The XRD and FTIR analysis results showed that the samples obtained were in the form of hydroxyapatite, fluorhydroxyapatite, and fluorapatite, which was also indicated by the presence of functional groups PO43-, CO32-, and OH- group libration mode at a wavenumber of 740 cm-1. There was a decrease in the lattice parameter a and an increase in the crystal size as the substitution of fluor ions increased. Based on the results of the electrical and thermal properties characterization, fluorapatite has the highest conductivity and better thermal stability when compared to hydroxyapatite and fluohydroxyapatite.Keywords – Fluor, Hydroxyapatite, Hydrothermal, eggshell, Biomaterial
Co-Authors Agus Sukarto Wismogroho Ahmed, Ifty Akhiruddin Maddu Aminatun Angga Saputra Aprilianda, Aprilianda Arief Boediono Bambang Sugeng Berry Juliandi Budiman, Ismail Cahayadi, Sigit Daru Charlena Cherly Firdharini Christina Winarti Djaja Surya Atmadja Djarwani S. Soejoko Fauziyatul Munawaroh Gunawarman Hendrawan Laksono Husin Alatas Irma Herawati Suparto Irmanida Batubara Jayadi Kiagus Dahlan Luthfiana, Widya Mersi Kurniati Mohamad, Che Wan Sharifah Robiah Munawaroh, Fauziyatul Munir, Ryaas Mishbachul Nurhayati, Retno Wahyu Nurizati Nurizati Nuzulia, Nur Aisyah Nuzulia, Nur Aisyah Reza Pahlevi Rudianto Riano, Riza Sari, Mona Savitri Damayanti Serin Imsa Arizuni Setia Utami Dewi Sulistioso Giat Sukaryo Sulistioso Giat Sukaryo, Sulistioso Giat Tri Suciati Wahyu Bambang Widayatno Widya Luthfiana Widyarani Widyarani Wulan Islamia Wulan Tri Wahyuni Yusril Yusuf Zia Rausyanfikr Attar