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Rizal Irfandi
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rizalirfandi043@gmail.com
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+6285215254648
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rizalirfandi043@gmail.com
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Jl. Bumi 18 Blok A 15 No. 1 Bumi Permata Hijau, Makassar, Sulawesi Selatan, Indonesia
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INDONESIA
Hayyan Journal
Published by Education and Talent Development Center Indonesia
ISSN : -     EISSN : 30466679     DOI : https://doi.org/10.51574/hayyan.v1i1.1130
Core Subject : Health, Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering Medicine & Pharmacology
Focus and Scope This journal publishes articles related to chemistry. The scope of this journal includes: Inorganic Chemistry Organic Chemistry Physical Chemistries Chemical Instruments Analytical Chemistries Materials Chemicals Industrial chemistry Biochemistry Applied Science Applied Chemistry
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 16 Documents
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Search results for , issue "Vol. 2 No. 3 (2025): October" : 16 Documents clear
Antifouling Membrane Modification for Water Desalination: Study of Synthesis and Modification Alam, Muhammad Nur
Hayyan Journal Vol. 2 No. 3 (2025): October
Publisher : Education and Talent Development Center of Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/hayyan.v2i3.4370

Abstract

One of the most important ingredients on earth that everyone needs is water. Consumption of large amounts of water is needed in various human activities such as agriculture, power generation, sanitation, drinking water needs and others. Membrane technology has developed into an indispensable platform technology for water purification, including seawater and brackish water desalination, due to its energy-saving and cost-effective qualities. However, membrane fouling, which results from the non-specific interaction between the membrane surface and foulants, severely impedes the effective deployment of membrane technology. Therefore, this review aims to provide a complete overview of the fabrication and modification of polymer or biopolymer based membranes as an antifouling membrane that focused on the method and performance of antifouling membrane, including water flux, salt rejection, and fouling properties. This review will first outline the main foulants and the primary mechanisms of membrane fouling, followed by a discussion of the development of antifouling membranes, including antifouling tactics and preparation methods. In the final site, the author will be show about the application, challenges and potential future of the antifouling membrane for water desalination.
A Systematic Literature Review: Chitosan-Based Membrane for Pollutant Removal from Wastewater Alam, Muhammad Nur
Hayyan Journal Vol. 2 No. 3 (2025): October
Publisher : Education and Talent Development Center of Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/hayyan.v2i3.4371

Abstract

This review synthesizes research on development of synthesis techniques and modification methods for chitosan- based membranes, all application areas for pollutant separation to address inconsistencies in membrane performance and limited comparative analyses across pollutant classes. The review aimed to evaluate synthesis and chemical modification strategies, benchmark fabrication methods for mechanical strength and selectivity, identify nanomaterial integration approaches, compare pollutant removal efficiencies, and analyze challenges in membrane applications. A systematic analysis of studies from diverse synthesis methods—including phase inversion, electrospinning, and 3D printing—and modification approaches such as chemical crosslinking and nanomaterial incorporation was conducted. Findings reveal that nanocomposite and crosslinked membranes exhibit enhanced mechanical stability, permeability, and selective removal of heavy metals, dyes, and organic pollutants, with adsorption capacities reaching up to 1500 mg/g and oil-water separation efficiencies exceeding 98%. However, variability in synthesis protocols, limited regeneration data, and insufficient real wastewater evaluations constrain practical scalability. Integration of photocatalytic and antifouling modifications improves fouling resistance and operational longevity, though long-term durability remains underexplored. These results underscore the potential of tailored chitosan-based membranes for multifunctional pollutant separation while highlighting the need for standardized methodologies and comprehensive regeneration studies. The synthesis informs future research directions to optimize membrane design and facilitate broader implementation in sustainable water treatment technologies.
Transition Metal Layered Double Hydroxide Nanosheets for Breast Cancer Drug Delivery Irfandi, Rizal
Hayyan Journal Vol. 2 No. 3 (2025): October
Publisher : Education and Talent Development Center of Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/hayyan.v2i3.4375

Abstract

This review synthesizes research on transition metal layered double hydroxide nanosheets in breast cancerdrug encapsulation to address challenges in targeted delivery, drug resistance, and controlled release. Thereview aimed to evaluate synthesis and functionalization strategies, benchmark drug loading and releaseprofiles, elucidate metal doping effects on targeting and uptake, compare therapeutic outcomes, and identifyclinical translation barriers. Literature selection focused on experimental in vitro and in vivo studies publishedup to mid-2024, emphasizing physicochemical characterization, cellular internalization, and therapeuticefficacy. Findings reveal that transition metal doping and surface modifications enable ultrahigh drug loadingcapacities with pH-responsive, tumor-specific release, enhancing intracellular delivery via receptor-mediatedand endocytic pathways. Multifunctional nanosheets demonstrate synergistic anticancer effects throughcombined chemo-, photothermal, and immunotherapies, with favorable biocompatibility and low systemictoxicity in preclinical models. However, variability in synthesis reproducibility, incomplete mechanisticunderstanding of metal ion interactions, and limited long-term safety data impede clinical translation.Integrating these findings underscores the potential of transition metal-doped LDH nanosheets as versatileplatforms for breast cancer nanotherapy while highlighting the need for standardized evaluation andcomprehensive in vivo assessments. These insights inform future research directions toward optimizingnanosheet design and advancing clinical applications in precision oncology.
Utilization of Yam Extract as an Alternative to Crystal Violet for Staining Streptococcus mutans Bacteria Ridwan, Asriyani; Fatimah; Mutmainnah, Nurul; Faisal
Hayyan Journal Vol. 2 No. 3 (2025): October
Publisher : Education and Talent Development Center of Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/hayyan.v2i3.4328

Abstract

Gram staining is a fundamental technique in microbiology, vital for the initial identification of bacteria based on differences in cell wall structure, classifying them as Gram-positive and Gram-negative. This method is crucial for rapid clinical diagnosis. Currently, its primary stain, Crystal Violet, raises serious concerns due to its mutagenic, toxic, and environmentally unfriendly properties, necessitating the search for safer and more sustainable alternatives. This study focuses on the potential of yam tubers (Dioscorea sp.), an abundant local resource, as a substitute for Crystal Violet. Yam tubers are rich in anthocyanins, natural pigments with cationic properties and antibacterial activity, making them a promising dye candidate. The selected test bacterium was Streptococcus mutans, a Gram-positive, coccus-shaped bacterium and a major cause of dental caries, ideal for validating the staining ability of thick cell walls. The aim of this study was to evaluate the effectiveness of yam tuber extract in staining S. mutans and to compare its staining quality with standard Crystal Violet. The expected outcome is the creation of an economical, environmentally friendly, and sustainable staining method.
Visual Detection of Lead Ions (Pb²⁺) Using a Colorimetric Sensor for Fishery Products Fudhail, Ahmad; Irfandi, Rizal
Hayyan Journal Vol. 2 No. 3 (2025): October
Publisher : Education and Talent Development Center of Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/hayyan.v2i3.4498

Abstract

The presence of lead ions (Pb²⁺) in fishery products poses potential risks to human health. Therefore, simple, rapid, and easily applicable detection methods are highly required. This study aimed to develop a simple colorimetric sensor for the visual detection of Pb²⁺ based on color change as an analytical signal. The sensor was prepared through the interaction of a complexing indicator with the target metal ion, resulting in a distinct and visually observable color response. The novelty of this work lies in the application of a simple colorimetric sensor with a low visual detection limit and high selectivity toward Pb²⁺, as well as its direct applicability to simulated fishery product samples without the need for complex analytical instruments. The results demonstrate that the developed sensor is capable of selectively detecting Pb²⁺ with a clear visual response, indicating its potential use as a low-cost and practical method for preliminary screening of lead contamination.
Comprehensive Midwifery Care for Ny "E" with a Normal Pregnancy at the Caile Community Health Center, Ujungbulu District, Bulukumba Regency for the Period May-July Year 2025 Asmirati
Hayyan Journal Vol. 2 No. 3 (2025): October
Publisher : Education and Talent Development Center of Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/hayyan.v2i3.4551

Abstract

Pregnancy, childbirth, newborns, the postpartum period, neonates and family planning are normal conditions, but require supervision so that they do not turn into abnormal conditions so that the government and health workers must make various efforts to treat and reduce complications that can cause morbidity and mortality. to the mother and baby by providing continuous care or comprehensive care to improve the health status of the mother and child through monitoring, development from pregnancy to family planning (KB). The care methods in this LTA are interviews, patient observations at the Community Health Center and home visits. The subject in this care is Mrs "E" GIPIA0 with a normal third trimester pregnancy at the Caile Community Health Center. Based on the results of comprehensive midwifery care for Mrs "E" by carrying out midwifery care independently and collaboratively during the third trimester of pregnancy with normal physiological complaints, in labor with spontaneous delivery, the baby was born normally, postpartum visits 4 times and neonate visits 3 times were normal as well as the use of contraception using injections, by documenting SOAP in the Varney management approach for pregnant women, giving birth, newborns, postpartum, neonates and services. Family planning. Conclusion Comprehensive Midwifery Care carried out on Mrs "E" starting from the gestational age of 34 weeks 3 days, delivery, newborns, postpartum, neonates and family planning (KB) with injections, normally without any accompanying complications or complications, it is hoped that the results of this writing can be a source of information and increase knowledge and skills in accordance with comprehensive midwifery care service standards in health services, especially at the Caile Community Health Center, UjungBulu District, Bulukumba Regency.

Page 2 of 2 | Total Record : 16

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