Chimica Didactica Acta, Journal of Chemistry and Chemistry Education
Chimica Didactica Acta (CDA) is an open access journal that provides an international platform for the publication of high-quality research in chemistry and chemistry education. The journal welcomes contributions from all sub-disciplines of chemistry, with a strong emphasis on teaching, learning, laboratory practice, and educational innovation in chemistry across secondary, vocational, and higher education contexts. Chimica Didactica Acta publishes manuscripts that are scientifically sound, methodologically rigorous, and pedagogically meaningful, offering new insights that advance both chemical knowledge and the teaching and learning of chemistry. The journal values studies that bridge theory and practice, particularly those demonstrating clear implications for classroom instruction, laboratory work, curriculum development, or educational policy. Subject coverage includes, but is not limited to, the following areas: General Chemistry Organic Chemistry Inorganic Chemistry Physical Chemistry Analytical Chemistry Biochemistry Environmental and Green Chemistry Industrial and Applied Chemistry Materials and Polymer Chemistry Computational and Theoretical Chemistry (with educational relevance) Chemistry Education and Didactics: Chemistry teaching and learning strategies Curriculum design and development in chemistry Assessment and evaluation in chemistry education Misconceptions and conceptual understanding in chemistry Teacher education and professional development in chemistry Laboratory and Practical Work: Design and implementation of chemistry laboratory activities Inquiry-based and problem-based laboratory learning Safety, sustainability, and green practices in chemistry laboratories Virtual laboratories, simulations, and remote lab experiences Assessment of laboratory skills and competencies Learning Media and Educational Innovation: Development and evaluation of learning media for chemistry instruction Digital tools, simulations, animations, and multimedia resources Integration of ICT, AI-supported tools, and educational technologies in chemistry classrooms Blended, online, and technology-enhanced chemistry learning environments Submissions focusing on educational technology or digital tools must demonstrate clear pedagogical value and originality, beyond the simple reuse of existing platforms or methods. Studies related to laboratory innovation should include a clear educational application and evidence of learning impact. Article Types Chimica Didactica Acta welcomes the following types of submissions: Full Research Articles presenting comprehensive empirical, theoretical, or design-based studies Practice Reports, which may include: Innovative teaching practices or laboratory activities Development or evaluation of learning media Preliminary findings, pilot studies, or well-documented negative results Conceptual frameworks or instructional design studies These formats allow authors to share valuable educational insights that may not yet constitute large-scale studies but offer meaningful contributions to chemistry education practice and research. Review articles are considered upon invitation by the Editor or Editorial Board. Reviews should go beyond descriptive literature summaries and provide critical analysis, synthesis of evidence, identification of research gaps, and forward-looking perspectives for chemistry education and practice. Reviews lacking a strong analytical and reflective component will not be considered for publication.
Articles
12 Documents
FTIR SPECTROSCOPIC CHARACTERIZATION OF BLOOD PLASMA IN GEMBRONG GOATS FOLLOWING PROSTAGLANDIN F2α ADMINISTRATION
Husnurrizal Husnurrizal;
Desi Andriani;
Cut Nila Thasmi;
Tongku Nizwan Siregar;
Hafizuddin Hafizuddin;
Nabilah Putroe Agung;
Layli Adhayani
Chimica Didactica Acta Vol. 14 No. 1: June 2026
Publisher : Universitas Syiah Kuala
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DOI: 10.24815/jcd.v14i1.2032
The Gembrong goat is an indigenous Indonesian germplasm currently in a critical status, highlighting the importance of effective reproductive management. This study aimed to characterize biomolecular changes in Gembrong goat blood plasma following PGF2α administration using FTIR spectroscopy and explore their potential relationship with reproductive physiology. This study involved six male Gembrong goats divided into two treatment groups: P1 (n=3), which received an injection of 75 μg PGF2α, and K0 (n=3), which received an injection of 1.5 ml physiological NaCl. Semen samples were collected 30 minutes after treatment, and blood samples were drawn from the jugular vein and processed to obtain plasma through centrifugation at 3500 rpm for 10 minutes. Plasma biomolecule analysis was conducted using Fourier Transform Infrared (FTIR) spectroscopy within a range of 4000–400 cm⁻¹ to identify biomolecular functional groups. Absorbance data from the FTIR spectra were then analyzed quantitatively using a t-test. The results showed that FTIR analysis identified major biomolecular constituents in blood plasma, including proteins, lipids, carbohydrates, nucleic acids, and calcium-associated compounds. Significant increases were observed in protein-related bands, particularly Amide A (p = 0.004) and O-H/N-H stretching regions (p = 0.005), as well as in specific DNA-associated (p = 0.023) and calcium phosphate-associated bands (p = 0.001 and p = 0.008) following PGF2α administration. In contrast, lipid- and carbohydrate-associated spectral regions showed no significant differences (p > 0.05) between treatment groups. PGF2α administration altered FTIR spectral characteristics of Gembrong goat plasma, particularly biomolecular regions associated with proteins, lipids, carbohydrates, and nucleic acids. These molecular changes provide preliminary evidence of physiological responses related to reproductive processes. Further studies integrating FTIR analysis with direct sperm quality assessment are required.
ENHANCING STUDENTS’ CHEMICAL REPRESENTATION SKILLS THROUGH MOLECULAR DYNAMICS SIMULATION-BASED DISCOVERY LEARNING
Lisa Tania;
Andrian Saputra;
Annisa Meristin;
Mohammad Ahdiat;
Athifah Azzahra
Chimica Didactica Acta Vol. 14 No. 1: June 2026
Publisher : Universitas Syiah Kuala
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DOI: 10.24815/jcd.v14i1.2174
Enhancing Students’ Chemical Representation Skills Through Molecular Dynamics Simulation-Based Discovery Learning. Objectives: This study aimed to investigate the effectiveness of a discovery learning model integrated with molecular dynamics (MD) simulations in enhancing high school students' chemical representation skills. It specifically sought to determine the difference in skill improvement between students engaged in the simulation-based discovery learning environment and those receiving conventional instruction. This research addopted a quasi-experimental study using a non-equivalent control group pretest-posttest design was conducted with 72 eleventh-grade students from a public high school. The experimental group (n = 36) participated in a discovery learning module featuring interactive MD simulations, while the control group (n = 36) followed the standard curriculum using conventional teaching methods. The primary instrument was the Chemical Representation Skills Test (CRST), which was content-validated and demonstrated high reliability (Cronbach’s α = 0.88). Data were analyzed using descriptive statistics, independent samples t-test, and normalized gain (N-gain) scores. The results revealed a statistically significant difference in the posttest scores between the two groups (p < 0.05). The experimental group demonstrated substantially greater improvement in chemical representation skills, achieving a high average N-gain score of 0.72, compared to the control group's medium N-gain score of 0.45. Analysis of sub-skills revealed that the most significant gains for the experimental group were observed at the sub-microscopic and symbolic representation levels. The integration of molecular dynamics simulations within a discovery learning framework is highly effective for improving students' chemical representation skills. This approach provides a powerful pedagogical tool to bridge the gap between abstract chemical concepts and concrete, dynamic visualizations, thereby fostering a deeper and more integrated understanding of chemistry