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Eksplorasi Limbah Tulang Sapi Sebagai Sumber Biomaterial Hidroksiapatit Alimuddin Alimuddin; Susi Rahayu
Kappa Journal Vol 6 No 2 (2022): Desember
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v6i2.6885

Abstract

The abundance of cow bone waste in West Nusa Tenggara has not been in line with proper treatment. Cow bones contain a lot of apatites that can be modified into raw materials for the fabrication of hydroxyapatite. The need for hydroxyapatite as bone graft biomaterials increase in Indonesia continuously. The study aims to identify the appropriate preparation method for extracting hydroxyapatite from cow bone. Mechanical and thermal techniques are used to extract the cow bone. The method utilizes heat energy and mechanical energy to achieve hydroxyapatite. The extracted powder from cow bone was identified the ratio of Ca/P using EDX, calculated the yield of the fabricated product, measured its bulk density, and placed its functional group by FTIR. The results reveal that the best preparation method to acquire hydroxyapatite is by extracting the compact bone of bovine. The compact bone is macerated with alcohol for 12 hours and calcined at a temperature of 9500C for three hours. The apatite has a Ca/P ratio of 2.25, yielding 66.53%, and a bulk density of 1.18 g/cm3. Typical hydroxyapatite groups that emerge from apatite powder are the presence of functional groups OH, PO43-, and CO32-. This preparation method also has powders with unidentified C-H functional groups. The fact of this variety indicates the powder does not contain organic elements that can be at risk of rejection by the human body. Therefore, the apatite extracted from cow bone can be used as a safe biomaterial for the human body.
DISEMINASI TEKNIK PEMBUATAN PUPUK ORGANIK DARI LIMBAH PERTANIAN DAN PETERNAKAN DI DESA MENCEH, KAB. LOMBOK TIMUR Liza Umitasari; Susi Rahayu; Afiatul Hafifah; Ahmad Risandi F.; Alda Berlian; Anggie Dwi P.; Arzyl Akbar; Enggar Juwanda K.; Huan Ahmad T.; Legi Aprila; Mammi Dwi R.
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 7, No 1 (2023): March
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v7i1.13787

Abstract

ABSTRAKPenduduk desa Menceh mayoritas bermata pencaharian sebagai petani. Saat ini ketersediaan pupuk pertanian cukup langka. Kelangkaan ini berdampak pada mahal nya harga pupuk kimia. Oleh karena itu, perlu dilakukan suatu inovasi penggantian pupuk kimia dengan pupuk organik. Sehingga perlu dilakukan suatu kegiatan untuk menambah wawasan masyarakat terkait manfaat dari pupuk organic. Adapun tujuan lain pelaksanaan kegiatan ini yakni untuk meningkatkan keterampilan masyarakat dalam pembuatan pupuk organic. Untuk mencapai tujuan tersebut maka kegiatan dilakukan dalam tiga tahapan utama. Tahap pertama melalui kegiatan sosialisasi peranan penting penggunaan pupuk organic terhadap kesuburan tanah. Tahap kedua dengan kegiatan pelatihan pembuatan pupuk organic. Dan tahapan terakhir yakni pendampingan secara berkala pembuatan pupuk, pengaplikasian pupuk, dan pengemasan pupuk. Adapun dalam pelaksanaan kegiatan digunakan beberapa metode pendekatan yaitu Model Participatory Rural Appraisal (MPRA), Model Community Development (MCD) dan edukatif. Melalui serangkaian tahapan dan metode pendekatan tersebut, hasil evaluasi menunjukkan bahwa masyarakat telah mamapu secara mandiri membuat, menggunakan, dan mengemas pupuk sesuai dengan arahan tim KKN. Dengan kemandirian tersebut diharapkan dapat mengurangi ketergantungan masyarakat terhadap penggunaan pupuk kimia. Kata kunci: sekam padi; kohe kambing; pelatihan ABSTRACTThe majority of Menceh villagers work as farmers. Currently, the availability of agricultural fertilizers is quite scarce. This scarcity has a direct impact on the high price of chemical fertilizers. Therefore, innovation is necessary to replace chemical fertilizers with organic fertilizers. Consequently, it is essential to elevate public knowledge regarding the benefits of natural fertilizer. In addition, the community needs to train on how to make organic fertilizer. Three main stages are conducted to achieve this goal. Firstly, the critical role of using organic fertilizers on soil fertility is introduced to the farmers. Also, peasants are taught how to create non-chemical fertilizers appropriately. Ultimately, the land workers are supervised regularly in making fertilizer, applying fertilizer, and packaging fertilizer. Several approaches are leveraged in the implementation processes: the Participatory Rural Appraisal Model (MPRA), the Community Development Model (MCD), and the educative. Through a series of stages and the approach method, the evaluation results reveal that the local community is able to fabricate, utilize, and wrap fertilizer independently according to the KKN team's directions. This independence is hoped to reduce the community's dependence on chemical fertilizers. Keywords: rice husks; goat kohe; training
Inisiasi Kemandirian Siswa MTs Nurul Islam Sekarbela Melalui Praktikum Kelistrikan dan Kemagnetan Untuk Mendukung Program Merdeka Belajar Dian W. Kurniawidi; Rohani Sayuti; Muh. Alfaris; Agus Wahid H; Susi Rahayu
Jurnal Pengabdian Magister Pendidikan IPA Vol 6 No 2 (2023): April-Juni
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v6i2.4462

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The learning process requires media to attract students' attention and curiosity about the lesson. The era of digitalization of technology and information has caused students to start leaving books behind, creating an egocentric attitude focused on themselves. Experiment activities in the laboratory are indicated to be able to initiate collaboration and communication skills, in addition to fostering student independence in learning. This program aims to improve students' competency in literacy and numeracy so that they are better prepared and more relevant to the times. The activity lasts for 3 days, the first and second days are for experiments, while the third day is discussion and evaluation. Experiment materials are electricity and magnetism as much as 5 topics. Based on the completed questionnaire, students understood the Seeback Effect and Magnetic Field Identification up to 96%, while the most difficult topics to understand was Generators and Transformers with an understanding percentage of 76% and Parallel Series Circuits by 88%.
Workshop Analisis Kristalografi Dengan Metode Rietveld Menggunakan Aplikasi X’Pert Highscore Ramadian Ridho Illahi; Arif Budianto; Zahrah Ramadlan Mubarokah; Dian W. Kurniawidi; Siti Alaa; Teguh Ardianto; Susi Rahayu
Jurnal Pengabdian Magister Pendidikan IPA Vol 6 No 2 (2023): April-Juni
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v6i2.4463

Abstract

Final year students are required to have the ability to innovate, be creative, have personality, and develop independence in seeking and finding knowledge through realities and field dynamics such as ability requirements, real problems, social interaction, collaboration, self-management, as well as performance demands and achievement targets. In order for students' hard skills and soft skills to be formed strongly, it is felt necessary to provide additional skills, especially those that support the completion of the Final Project. Workshops on the use of the Originlab are quite urgent in research so as to speed up the completion of the Final Project (Thesis) for students interested in Materials. This software is commonly used to prepare XRD, FT-IR, UV-Vis and other spectra that are quite important in materials. In this explanation, a brief description of the XRD data preparation steps is described, starting from data input to quantitative and qualitative data analysis. Data analysis was carried out including determining the value of particle size, FWHM, crystal structure and lattice strain. Workshop participants totaled 20 students and were held for 7 days, from 7 to 15 May 2023 with details of 2 days offline, 1 day online via G-Meet and 4 days of mentoring.
PENGEMBANGAN SISTEM PENGUKURAN EMISI UDARA JENIS FINE PARTICLE SKALA PORTABLE UNTUK LABORATORIUM Arif Budianto; Susi Rahayu; Ramadian Ridho Illahi; Lalu Sahrul Hudha; Intan Utami
Jukung (Jurnal Teknik Lingkungan) Vol 9, No 2 (2023)
Publisher : Program Studi Teknik Lingkungan Fakultas Teknik Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jukung.v9i2.17574

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Emisi udara jenis fine particle tergolong partikel submikron yang berukuran sangat kecil dan sangat mudah untuk terhirup. Sistem pengukuran ataupun mitigasi emisi ini tergolong relatif mahal dan kurang portable. Oleh sebab itu, penelitian ini bertujuan untuk mengembangkan sebuah sistem portable yang relatif murah untuk pengukuran emisi udara jenis fine particle dalam ruang laboratorium. Sistem dirancang dengan sebuah sensor partikulat yang relatif murah namun memiliki performa yang baik. Sensor tersebut dihubungkan dengan sebuah mikrokontroler yang berfungsi memproses sinyal sensor. Sistem diuji di dalam area soldering laboratorium selama satu jam. Hasil penelitian menunjukkan bahwa ruang laboratorium, pada area soldering, memiliki konsentrasi fine particle antara 23 sampai dengan 463 µg/m3. Sistem ini memiliki performa yang baik, ditunjukkan dengan linearitas 99% dan akurasi lebih dari 90%. Hasil penelitian menyimpulkan bahwa sistem dapat mendeteksi sekaligus mengukur besar konsentrasi emisi udara jenis fine particle skala ruangan dengan rentang 0 – 999 µg/m3. Kata kunci: emisi, partikulat, polusi udara, sistem pengukuran
Pengolahan Limbah Cangkang Kerang Mutiara (Pinctada Maxima) Sebagai Adsorben Logam Berat Fe Susi Rahayu; Siti Alaa; Dewi Handayani; Dian W Kurniawidi
JURNAL PERTAMBANGAN DAN LINGKUNGAN Vol 3, No 2 (2022): Desember 2022
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpl.v3i2.11464

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Fe is a type of heavy metal that can cause damage to the environment and health. If the concentrations of Fe are more than 1 mg/L, it can lead to toxic effects to the human body. The level of Fe contamination in the environment needs to be controlled to diminish hazardous effects. This can be conducted by modifying a smart material to adsorb the Fe metal. The material modification was carried out by isolating pearl oyster shells (Pinctada maxima) into chitosan as Fe metal adsorbent. The main aim of this research is to identify the ability of chitosan to soak Fe up. To obtain chitosan material, the pearl shells were isolated through 3 stages, namely deproteination, demineralization, and deacetylation. The isolated chitosan powder was identified the typical group forming chitosan using FTIR and the yield of each isolation process was calculated. Meanwhile, the ability of chitosan to adsorb Fe metal was identified through testing using AAS. The results of the calculation of the yield of the chitosan isolation process showed a decrease in mass at each stage. Until the final stage, the powder yield decreases to 32.17% from the initial mass used. In addition, the FTIR results also figure out that chitosan was successfully synthesized in the presence of the OH functional group at a wave number of 3434.660 cm-1 and the NH2 functional group at a wave number of 1626.110 cm-1 with a degree of chitosan deacetylation of 80.534%. It is clear from the results of AAS where the highest adsorption capacity is 33,262 mg/g with an adsorption efficiency of 99,788%. Therefore, the pearl shells have been successfully adjusted into chitosan. Where chitosan is one of the excellent biomaterials to absorb the heavy metal.
Lombok Pumice for Adsorption of Fe2+ Metal Ions Using Activation Temperature Variations Sinta Devi Hariyanti; Susi Rahayu; Siti Alaa’; Dian Wijaya Kurniawidi
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i3.5306

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Fe is a heavy metal that is often found in water. If the level exceeds the maximum limit and is continuously consumed, it will cause various kinds of diseases so that a method is needed that can reduce the level of heavy metal Fe2+. In this study, Fe2+ metal ion adsorption was carried out using pumice which aims to determine the characteristics of pumice which include surface area, density and porosity, adsorption ability, and determine the contact time required to absorb Fe2+ metal ions. The adsorption method used is the batch method, with activation treatment for each adsorbent. Activation is done by heating at a temperature variation of 250o, 400o, and 550oC. The results showed that the highest adsorption capacity of pumice was activated pumice powder at a temperature of 550oC with a characteristic surface area of ​​8.196 m2/g, porosity 12.722% and density 2.374 gr/cm3 and the best contact time was at 60 minutes with absorption efficiency 86.4%
Characteristics of Dyeing Cotton Thread Using Fine Particle Powder from Tectona Grandis Leaf Dian W. Kurniawidi; Diah L. Dewi; Susi Rahayu; Arif Budianto; Siti Alaa
Jurnal Penelitian Pendidikan IPA Vol. 9 No. 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.3753

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In Lombok, the traditional process of dyeing woven fabrics primarily involves the use of synthetic dyes, which can contribute to environmental pollution. This study aimed to identify the characteristics of woven yarn and assess the effect of dye solution pH on yarn properties when using teak leaves (Tectona grandis) to produce dye powder through a mechanical thermal method. The thread coloring process comprised mordanting, coloring, and fixation stages, with the assistance of Android applications for color analysis and a Universal Tensile Machine Type RTG-1310 to assess mechanical properties. The results revealed that dyeing yarn with anthocyanin powder from teak leaves yielded a range of colors, including shades of gray, brown, and red. The highest tensile strength observed was 2,664 cN/dtex, and the solution's pH significantly influenced the dominant color, with red being prominent. Notably, optimal tensile strength (1,649 cN/dtex) was achieved at pH six. These findings highlight the potential for producing high-quality cotton threads using different dyeing processes and techniques. The study's insights contribute to both environmental protection and thread quality enhancement in the textile industry
PENGUATAN MATERI FISIKA DASAR MENGGUNAKAN ALAT PERAGA KIT SEDERHANA BERBASIS MIKROKONTROLER ARDUINO UNO DI MAN 1 SELONG, KABUPATEN LOMBOK TIMUR Suhayat Minardi; Rahadi Wirawan; Dian Wijaya Kurniawidi; Susi Rahayu; Arif Budianto; Laili Mardiana; Intan Utami; Dodi Mariadi
Jurnal Abdi Insani Vol 10 No 4 (2023): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v10i4.1191

Abstract

Community service is part of the Tri Dharma of Higher Education which must be implemented. As an aspect of their mandatory duties, all campus academics have an obligation to carry out community service. Community service can be carried out using various methods, models, strategies and service topics. One of these topics is strengthening or deepening basic physics material using teaching aids and based on the application of technology that is widely used. This activity was carried out with the aim of providing reinforcement of basic physics material for students at MAN 1 Selong, East Lombok Regency. This service is also aimed at introducing the use of microcontrollers as learning tools. The service is divided into three sub-stages, namely an introduction to material on quantities in physics, providing examples of cases of analysis of physical quantities, and simple training on operational methods for microcontrollers as data processing elements and temperature sensors. This stage is carried out using the Arduino IDE application. This activity provides benefits for students in increasing direct understanding regarding the temperature quantity which is a basic quantity, the unit conversion process, and the application of digital technology in measurement activities. Students are trained to apply Arduino IDE devices, Arduino UNO microcontrollers, and create basic programming with Arduino IDE. Students can also more easily measure temperature and other quantities using tools designed independently and display the results on the screen. Students are able to carry out temperature unit conversions manually and also through programming. The application of a microcontroller can make it easier for students to carry out data analysis. The results of this service can improve students' understanding of basic physics material. Students are able to use microcontrollers and design teaching aids.
Synthesis and Characterization of Nano Chitosan from Vannamei Shrimp Shell (Litopenaeus vannamei) Dian Wijaya Kurniawidi; Siti Alaa; Eva Nurhaliza; Desti Olga Safitri; Susi Rahayu; Muhamad Ali; Muhamad Amin
Jurnal Ilmiah Perikanan dan Kelautan Vol. 14 No. 2 (2022): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v14i2.32864

Abstract

Highlight Research New method to synthesis nano chitosan from Vannamei shrimp with high Deacetylation Degree Nano chitosan from Vannamei shrimp can adsorb heavy metal Fe up to 81.35% Shrimp shells as an alternative adsorbents for Fe   Abstract Shrimp cultivation produces shrimp wastes in several forms, including shells from the molting process. Shrimp shell waste can be used as a source of nano chitosan. Many researches have used nano chitosan for various applications, one of which is to adsorb heavy metal pollution. This present study aimed to extract chitosan from shrimp shells and investigate the ability of nano chitosan to adsorb Fe metal. The research began by isolating chitin and chitosan from shrimp shells through deproteinization, demineralization, and deacetylation. The obtained chitosan was afterward characterized using Fourier Transform Infrared (FTIR). Furthermore, the glassy ionic method was used to synthesize nano chitosan. Nano chitosan was characterized using a scanning electron microscope (SEM), and the Fe metal adsorption ability was measured using Atomic Absorption Spectroscopy (AAS). The FTIR results showed that the synthesized shrimp shells had successfully formed chitin compounds with the appearance of the C-O-C functional group, while the chitosan compounds with the appearance of O-H and N-H groups. The SEM characterization showed that nano chitosan with a size of 173.71 nm was successfully formed with identical morphology in the form of a flat (spherical), elongated, and irregular position. The nano chitosan was able to absorb Fe solution up to 81.35%. Therefore, nano chitosan from the shrimp shells is suitable as an adsorbent of heavy metal Fe.
Co-Authors ABDUL GANI abdurrouf Abdurrouf Afiatul Hafifah Agista, Wida Puteri Agus Saputra Agus Wahid H Ahmad Risandi F. Ahmad Taufik Ahmad Taufik S Akhyar, Halil Alaa', Siti Alaa, Siti Alaa, Siti Alaa`, Siti Alawiyah, Geby Alaydrus, Alfina T. Alaydrus, M. Mukaddam Alaydrus, Mukaddam Alda Berlian Alfina Alaydrus Alfina Taurida Alaydrus Alhadi, Kasnawi Alhaqiqi, Candra Alimuddin Alimuddin Amirrah, Reffa Amrul Ikhsan Amrulloh, Ashfia Andini, Mira Anggie Dwi P. Anggriani, Ni Ketut Ansyori, Maz Isa Arif Budianto Arif Budianto Arif Budianto Arum, Maysaroh Arzyl Akbar Baiq Niswatul Khair Baiq R. S. Yusuf Bakti Sukrisna Bambang Sumardjoko Cahyawati, Triyana Dyah Deasy Mariyani Desti Olga Safitri Destrianingtyas, Aulia Safitri Dewi Handayani Dewi, Diah L. Diah L. Dewi Dian W Kurniawidi Dian W. Kurniawidi Dian W. Kurniawidi Dian Wijaya Kurniawidi Dian Wijaya Kurniawidi Djoko H Santjojo Djoko H. Santjojo Dodi Mariadi Dona, Dona Dwiyansaputra, Ramaditia Eka Rahmawati Eka Rahmawati Enggar Juwanda K. Ervina Sandra Dewi Eva Nurhaliza Eva Nurhaliza Fadila, Naila Fadli Robiandi Fajarica, Shinta Desiyana Fajriah, Baiq Nurul Fajriyah, Putri Arifatul Fidya, Karina Alma Fitri Bimantoro Hadi, Kasnawi Al Halil Akhyar Hamidi, Mohammad Zaenuddin Handayana, I G N Yudi Handayana, I Gusti Ngurah Yudi Handayana, I Gusti Ngurah Yudi Hasanah, Khofizzatul Hendri Maradona, Hendri Hidayatullah, Kholik Hiden - Hiden Huan Ahmad T. Hurnah Hurnah, Hurnah Huwaida, Maitsa I Wayan Sudiarta Inatsa, Najma Intan Utami Intan Utami Isa A.A, Maz Iwan Sumarlan Jannah, Sahlli Jazuly, Zaky Juniarti, Rosita Kasnawi Al Hadi Khusnul Khotimah Kiki Yasdomi Kormil Saputra Kurniawidi, Dian W Kurniawidi, Dian W. Kurniawidi, Dian Wijaya Laeli, Ida Lahir, Sri Laili Mardiana Lalu A Didik Lalu A Didik Lalu A. Didik Lalu Sahrul Hudha Legi Aprila Lestari, Sintya Dewi Lily Maysari Angraini Liza Umitasari Mammi Dwi R. Mardiana, Laili Marlina, Resti Marzuki Marzuki Marzuki Marzuki Masruroh Masruroh Maulana, Sutan Fajri Meilani, Dini Moh. Bahtiar Muh. Alfaris Muhamad Ali Muhamad Ali Muhamad Ali Muhamad Amin Muhamad Amin Muhammad Fajrin Muhammad Maulana Nadila Rahmawati Nafsiatil Afro', Maulina Nurfadilah Nurfadilah Nurfadilah Nurhidayati Nurhidayati Nurlaili Nurlaili Nurmaulida, Siti Ema NURUL QOMARIYAH Oktri P, Awanda Pertiwi, Shavira Pranahita, Dewa Dwi Purnaning, Dyah Putraji, L.M. Guguh Ramadian Ridho Illahi Reza Alfian Ridwansyah, Habib Rohani Sayuti Rubi'ah, Siti S., RR. Delima Sabrina, Sovia sasabila, sasabila Septiani, Nonik Setyawan P Sakti Setyawan P. Sakti Shomad, Moh Abdul Sinta Devi Hariyanti Siti Alaa Siti Alaa Siti Alaa’ Sri Mulyani Suhayat Minardi Suhayat Minardi Sunita, Asfa Syamsuddin Syamsuddin Syamsuddin Syamsuddin Syamsuddin Teguh Ardianto, Teguh Thathit Suprayogi Utami, Urfi Wahana, Lidia Wahyudi, Sopian Ari Wardi, Palaivia Harman Wijaya Kurniawidi, Dian Wirawan, Rahadi Wirawan, Rahadi Zahrah Ramadlan Mubarokah