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Electrospun nylon-6 nanofibers and their characteristics Sriyanti, Ida; Agustini, Meily P; Jauhari, Jaidan; Sukemi, Sukemi; Nawawi, Zainuddin
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 9 No 1 (2020): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v9i1.5747

Abstract

The purposes of this research were to investigate the synthesized Nylon-6 nanofibers using electrospinning technique and their characteristics. The method used in this study was an experimental method with a quantitative approach. Nylon-6 nanofibers have been produced using the electrospinning method. This fiber was made with different concentrations, i.e. 20% w/w (FN1), 25% w/w (FN2), and 30% w/w (FN3). The SEM results show that the morphology of all nylon-6 nanofibers) forms perfect fibers without bead fiber. Increasing fiber concentration from 20% w/w to 30% w/w results in bigger morphology and fiber diameter. The dimensions of the FN1, FN2, and FN3 fibers are 1890 nm, 2350 nm, and 2420 nm, respectively. The results of FTIR analysis showed that the increase in the concentration of nylon-6 (b) and the electrospinning process caused a peak shift in the amide II group (CH2 bond), the carbonyl group and the CH2 stretching of the amide III group from small wave numbers to larger ones. The results of XRD characterization showed that the electrospinning process affected the changes in the XRD pattern of nylon-6 nanofiber (FN1, FN2, and FN3) in the state of semi crystal. Nylon-6 nanofibers can be used for applications in medicine, air filters, and electrode for capacitors
The morphology of polyvinylpyrrolidone nanofibers containing Anredera cordifolia leaves Sriyanti, Ida; Almafie, Muhammad Rama; Nugraha, Yuda Prasetya; Idjan, Meutia Kamilatun Nuha Ap; Jauhari, Jaidan
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 10 No 2 (2021): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v10i2.8820

Abstract

The electrospinning method has been used successfully to make polyvinylpyrrolidone nanofiber containing Anredera cordifolia leaves (BLE). The research methods used were qualitative and pure experiment method. Polyvinilpirolidone nanofibers containing BLE were prepared with three mass variations of the polyvinylpyrrolidone (% w/w), namely 12%, 10%, and 8% w/w, respectively. The results of the macroscopic photo show that the fiber structure looks white for PVP nanofibers and yellow for PVP/BLE nanofibers. The fiber morphology was analyzed using SEM and the results showed that PVP and all PVP/BLE nanofibers were like a continuous strand of crossbars with a diameter of 590 – 1190 nm. The decrease in the concentration of the PVP polymer led to a reduction in the diameter of the resulting nanofibers. The coefficients of variance (ε), of the PVP, BLE1, BLE2, and BLE3 nanofibers were 0.06, 0.09, 0.11, and 1.22, respectively. The physicochemical structure of the nanofibers was evaluated using XRD and FTIR. The chemical analysis (FTIR) showed that there was a molecular interaction between Anredera cordifolia leaves extract and polyvinylpyrrolidone in the form of hydrogen bonds. The physics analysis (XRD) shows the effect of the electrospinning process, which is to change the structure of BLE crystals to semi crystals. The application of PVP/BLE nanofiber for wounds dressing
Physicochemical Properties of Characterization of PVP/CA/AE Nanofiber Pulungan, Meuretta Alawiyah; Sriyanti, Ida; Marlina, Leni
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 12 No 1 (2023): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v12i1.14904

Abstract

Nanofibers are nanotechnologies with cross-sectional diameters ranging from tens to hundreds of nanometers. We explained the definition of nanofibers and their unique physicochemical characteristics. This study aimed to see the characterization of Polyvinyl pyrrolidone/Cellulose acetate/Aloe vera extract fiber. The fiber was made with a concentration of PVP/CA in 13% (w/w) and an Aloe vera extract in 10% (w/w) using the electrospinning method. The electrospinning technique involves an electrohydrodynamic process in which liquid polymer droplets are electrified to produce jets that elongate to produce fibers. Electrospinning is an easy, fast, and simple technique for producing fibers with sizes ranging from micrometers to nanometers. Process parameters used in this research, such as flow rate of 0,20 ml/hour, high voltage of 12 kV, and drum speed is 200 rpm with the distance to the needle tip of the collector is 75 cm. The result showed that fiber PVP/CA/AE morphology is bead free and homogeneous. The average diameter of PVP/CA/AE fibers was 1115 nm.These results indicate that the resulting fiber is in the form of nanofibers. A small fiber diameter will result in a broader surface area. The XRD result shows that the PVP/CA/AE fibers have a semi-crystal phase.
Flipped Classroom: Its Implementation and Impact in Science Learning (A Case Study During the Covid-19 Pandemic) Supriasih, Eka; Fathurohman, Apit; Sriyanti, Ida
Jurnal Pendidikan Fisika Vol. 11 No. 1 (2023): PENDIDIKAN FISIKA
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/jpf.v11i1.8105

Abstract

Flipped classroom is a sort of blended learning in which students learn both synchronously and asynchronously. Synchronous learning has taken place in the classroom in real time. Learners gather feedback while communicating with teachers and classmates at the same time. This review expects to figure out how is the execution and effect of Flipped Classroom in Science Learning (Contextual analysis During the Covid-19 Pandemic) of Class VIII at SMPN 3 Rantau Bayur. This study used a case study as an approach in exploring qualitative data. This examination is a distinct subjective exploration as a contextual analysis with information assortment methods as polls and meetings. The results of this review demonstrate that the execution and effect of flipped classroom in science learning during the Covid-19 pandemic is positive, particularly for class VIII students in science subjects at SMPN 3 Rantau Bayur with a typical rate gain of 76.7% or the category of ‘very good’. Through the flipped classroom, students have the opportunity to concentrate on the topic at home as they are free to set their learning time. Students become familiar with the topic in an enjoyable situation. Students can repeat the learning videos and they are able to access them from anywhere. Besides, parents can participate in learning activities outside the classroom and make time to help their children learn. However, one of the drawbacks is the lack of devices to watch videos given by the teacher as not all students have computers, laptops, or smartphones. Also, the teachers still find difficulties in preparing good quality videos as learning media for students.
The underlying physics concept of a soccer game as a catalyst for enhancing creative thinking skills Sriyanti, Ida; Afifa, Mardiah; Meilinda, Meilinda; Puteri, Anisya Sefina; Aisyah, Nyimas; Bayu, Wahyu Indra; Zulkardi, Zulkardi; Putri, Ratu Ilma Indra; Hapizah, Hapizah
International Journal of Evaluation and Research in Education (IJERE) Vol 14, No 5: October 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v14i5.32682

Abstract

Teachers need to improve students’ creative thinking skills by incorporating relevant everyday contexts. Soccer, as a familiar part of daily life, has not been widely used in education, and its impact on creative thinking requires further study. This research aimed to develop a contextual physics e-module centered on soccer to enhance creative thinking in physics learning. The study followed Rowntree's development model, including planning, development, and evaluation, with Tessmer’s formative evaluation through expert reviews, one-on-one assessments, small-group evaluations, and field tests. The creative thinking indicators used in the research are fluency, flexibility, originality, and elaboration. Data were collected from 346 high school students in Palembang via walkthroughs, questionnaires, and written tests, then analyzed using SPSS version 16. The results showed that the soccer-based physics e-module is valid (Sig. 0.00), practical (one-to-one: 82.75%; small group: 91.00%), and in the moderate category for improving creative thinking (N-gain: 0.59). These findings highlight the need to explore other everyday contexts and assess the long-term impact of the e-module across different educational settings.
STEM Integration in Karate Sport as Physics Learning Media: Development, Validation, and Analysis of Student Learning Outcomes on Impulse and Momentum Materials Noviana, RA Sania; Sriyanti, Ida; Bayu, Wahyu Indra; Rahman, Nor Farahwahidah binti Abdul
Jurnal Penelitian Pendidikan IPA Vol 11 No 9 (2025): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i9.11972

Abstract

Creative thinking skills are essential competencies in the 21st century, involving cognitive processes and divergent thinking to generate innovative solutions from various perspectives. This study aims to develop and implement a STEM-based learning approach integrated with physics, focusing on impulse and momentum, to improve students' creative thinking skills. Karate is utilized as a contextual medium to facilitate real-life application of physics concepts. The research applies the Research and Development (R&D) method using the 4D model: Define, Design, Develop, and Disseminate. Validation involved nine experts, consisting of lecturers and teachers, who provided feedback to refine the developed e-module. Content validity was assessed using the Content Validity Ratio (CVR) and Content Validity Index (CVI), both reaching 1.00 (100%) across all aspects such as content relevance, Problem-Based Learning (PBL) suitability, ability to assess creative thinking, and design feasibility. Product trials with 101 senior high school students demonstrated significant improvement in creative thinking skills, as shown by an N-Gain score of 0.72. These findings indicate that the developed STEM-based e-module is effective in enhancing students' understanding of physics through contextual and engaging learning.
Kemplang Panggang and Salted Fish as Potential Issues in Physics e-Module: An Effort to Enhance Students’ Creative Thinking Skills Fitonia, Allika; Wiyono, Ketang; Sriyanti, Ida
Jurnal Pendidikan MIPA Vol 25, No 1 (2024): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstract: This study aims to produce a physics e-module based on the local wisdom of kemplang panggang and salted fish to help improve the creative thinking skills of senior high school students. Three stages of Rowntree's development model, namely planning, development, and evaluation with Tessmer's formative evaluation technique were applied in this study. A total of twenty-eight of eleventh grade students from SMAN 1 Tanjung Batu were selected purposively as research participants. Students' creative thinking skills were measured using the creative thinking skills test and analyzed using the normalized gain formula. The results showed that the average pretest and posttest scores of students were 28.20 and 71.65 with an average n-gain value of 0.6. The results of the study concluded that the use of e-modules based on the local wisdom of kemplang panggang and salted fish was quite effective in improving students' creative thinking skills.        Keywords: physics e-module, local wisdom, creative thinking skill. DOI: http://dx.doi.org/10.23960/jpmipa/v25i1.pp453-467
Attempts to Train Literacy and Numeracy through STEM-based Learning Media Making Training for Science Teachers in Muaraenim Regency Wiyono, Ketang; Sriyanti, Ida; Patriot, Evelina Astra; Ritonga, Ahmad Fitra; Amri, Iful; Anjani, Rahma Putria; Maylen, Venny; Aulia, Dwi Marwa; Maharani, Senandung Citra; Ramadhona, Tyse; Putri, Apriliski Amanda; Maknun, Lu’luil; Juliansyah, Dendi
Unram Journal of Community Service Vol. 5 No. 4 (2024): December
Publisher : Pascasarjana Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ujcs.v5i4.757

Abstract

This training aims to train literacy and numeracy through making STEM-based learning media on renewable energy material. In addition, teachers are expected to be able to provide innovation in media making, which can be implemented in science learning. The method used in this activity is Participatory Action Research (PAR). Several steps are taken to achieve the set goals, namely 1) giving a pretest or initial test, 2) implementing the service, and 3) giving a final test and evaluation and reflection. This activity was attended by 30 participants who were science teachers and members of the Science MGMP. The results showed that the percentage for the pretest score with 30 participants obtained an average of 47.6%, and the posttest score obtained an average of 93.20%, for a Gain score of 87%. This value represents the interpretation of the practical improvement category. Based on the results of the questionnaire on the level of satisfaction with the implementation of the service, it can be indicated that all teachers feel delighted with the training assistance service activities. This training activity has provided practical solutions to facing the challenges of 21st-century learning, especially in areas with limited facilities.
Pengaruh Parameter Proses Electrospinning pada Komposit Polyvinylidene Fluoride/Polyacrylonitrile Nanofiber Sriyanti, Ida; Almafie, Muhammad Rama; Dani, Rahma; Idjan, Meutia Kamilatun Nuha Ap; Partan, Radiyati Umi; Sanjaya, M Rudi; Jauhari, Jaidan
Jurnal Penelitian Pendidikan IPA Vol 9 No 9 (2023): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i9.4840

Abstract

PAN cannot be used as a stand-alone nanofiber, so it needs to be modified through copolymerization with other polymers, such as PVDF. It is composite mutually beneficial for both PVDF/PAN polymers. Study aims to see the effect of process parameters, such as voltage, flow rate and needle tip distance of PVDF/PAN composite nanofiber as well as molecular interaction and crystal structure, to confirm the presence of polymer in the nanofiber composite. The nanofibers with solution parameters PN1: PVDF 6% and PAN 8%, PN2: PVDF 6% and PAN 10%, and PN3: PVDF 6% and PAN 12% were prepared using electrospinning. Morphology of the process parameters of voltage (12kV, 16kV, 18kV), flow rate (30 μl/min, 60 μl/min, 90 μl/min) and needle tip distance (75 mm, 100 mm, 125 mm) were observed. The results showed straight and continuous fibre morphology, with a smooth surface and no beaded structure, with homogeneous fibre distribution with an increase in diameter from 394 ± 79 nm (NF1) to 851 ± 89 nm (NF3). The optimal state was in the solution of PN2: PAN 10% (w/w) and PVDF 6% (w/w), High Voltage 12 kV, Flow Rate PN3: 60 μl/min, and Needle to Collector Distance 75 mm.
Pengembangan E-Modul Berbasis Learning Cycle 5E untuk Meningkatkan Kemampuan Berpikir Kreatif Siswa SMP Kartikasari, Meri; Ismet, Ismet; Sriyanti, Ida
Jurnal Penelitian Pendidikan IPA Vol 9 No SpecialIssue (2023): UNRAM journals and research based on science education, science applic
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9iSpecialIssue.6528

Abstract

A valid, practical, and effective learning cycle 5e-based e-module has been successfully developed. The method used is Development Research with the Rowntree development model which consists of three stages, namely the planning stage, the development stage, and the evaluation stage. The instruments used in this research are validity, practicality and effectiveness test instruments.  The development process through content validity test, language, suitability of learning cycle 5E and creative thinking ability, practicality test, and field test. The results showed that the e-module developed had an average validity percentage of 4.03 with a good category. In the practically test, the e-module averaged 4.6 with a very practical category. The test of the effectiveness of the use of e-modules has an average n-gain of 0.7 with a high category of improving students' creative thinking skills.
Co-Authors Afifa, Mardiah Agung Mataram Agustini, Meily P Aldi, Muhamad Abel Kirana Alfikro, Ihsan Alisya, Rona Almafie, Muhammad Rama Anida Chairatunnisa Anissa Arianti Anjani, Rahma Putria Anjarwati, Nova Apit Fathurohman Ardi Aulia, Dwi Marwa Azhari, M. Aswa Cecil Hiltrimartin Chairunnisa Chairunnisa Dani, Rahma Effendi Effendi Eka Supriasih Feri Iskandar Feri Iskandar Fiber Monado Fitonia, Allika Fitria, Silfiyana Gelby Pradina Paramitha Gelby Pradina Paramitha Hapizah Idha Royani Idjan, Meutia Kamilatun Nuha Ap Iful Amri Innas Amalia Utami Ismet Ismet Ismet Ismet Ismet, Ismet Jaidan Jauhari Juliansyah, Dendi Kartikasari, Meri Ketang Wiyono Khairurijal . Khairurijal Khairurijal Khotimah, Masayu Husnul Kurdiati, Lintang Auliya Leni - Marlina Leni Marlina Leni Marlina Leni Marlina Lia Apriliana Ludiansyah, Anggi M Rama Almafie M Rudi Sanjaya Maharani, Senandung Citra Maknun, Lu’luil Maylen, Venny Meilinda Meilinda Meilinda Meilinda Meily P Agustini Meily Putri Agustini Meitaza, Dariah Melly Ariska MEURETTA ALAWIYAH PULUNGAN Meutia Kamilatun Nuha Ap Idjan Mikrajuddin Abdullah Muhamad Yusup Mutiara Meiwandari Nadia, Hartisyah Noviana, RA Sania Nugraha, Yuda Prasetya Nuriz Dariyani Nyimas Aisyah Nyimas Aisyah Patriot, Evelina Astra Pratiwi, Mia Marsela Pratiwi, Nadirra Pulungan, Meuretta Alawiyah Puteri, Anisya Sefina Putri, Apriliski Amanda Radiyati Umi Partan Radiyati Umi Partan, Radiyati Umi RAFLI PANDU RAMADHANI Rahayu, Anita Yuza Rahman, Nor Farahwahidah binti Abdul Rahman, Nor Farawahidah Abdul Rahmanita Ramadhona, Tyse Ratu Ilma Indra Putri Rayhanu, Ashfi Rina Aprilia Ritonga, Ahmad Fitra Riyanto Rosdiana Rosdiana Ryatanti, Nyimas Edwilliyah Sanjaya, M Rudi Sanjaya, Muhammad Rudi Sari, Nur Azizah Purnama Sary Silvhiany Sela, Melinia Sudirman, Sudirman Sukemi Sukemi Supriasih, Eka Syahputri, Selvia Mariska Syamsiar, Syamsiar Syntia, Miranda Putri Syuhendri, Syuhendri Ujang Supriyadi Wahyu Indra Bayu Wiyono*, Ketang Yuda Prasetya Nugraha Zainuddin Nawawi Zulkardi Zulkardi Zulkarnain, Nur Najihah Binti