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All Journal Jurnal Kesehatan Olahraga ULUL ALBAB ADDIN PROSIDING SEMINAR KIMIA Jurnal Ibriez : Jurnal Kependidikan Dasar Islam Berbasis Sains SPEKTRA: Jurnal Kajian Pendidikan Sains JURNAL PENDIDIKAN TAMBUSAI Jurnal Ekonomi Manajemen Sistem Informasi Dinasti International Journal of Education Management and Social Science Dinasti International Journal of Digital Business Management Aspirasi : Jurnal Masalah-masalah Sosial ADDIN JTTM: Jurnal Terapan Teknik Mesin INSECTA: Integrative Science Education and Teaching Activity Journal Tadris: Jurnal Pendidikan Islam Tensile : Jurnal Pengabdian Kepada Masyarakat
Syaiful Arif
SMK Negeri 2 Amuntai Hulu Sungai Utara Kal-Sel
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Journal : PROSIDING SEMINAR KIMIA

 1 
SINTESIS NANOPARTIKEL PERAK TERMODIFIKASI KITOSAN SECARA REDUKSI KIMIA: REVIEW ARTIKEL Saputra, Aswin Caesar; Alimuddin, Alimuddin; Arif, Syaiful
PROSIDING SEMINAR KIMIA Vol 2 No 2 (2024): Prosiding SNKT III 2023
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Nanoparticle is a compound particle that is synthesized in sizes ranging from 1-100 nanometers. Some things that need to be considered in the synthesis of silver nanoparticles are from their size, shape and morphology. In chemical methods, nanoparticles are made by reducing Ag+ ions, so that reducing agents and stabilizers play an important role in synthesis. Different reducing agents will affect the size of the resulting nanoparticles. Based on the literature review, a popular method used to synthesize silver nanoparticles is to use sodium borohydride as a silver nitrate reductor which has the advantage of being able to reduce and stabilize silver nitrate well, if modified with chitosan, silver nanoparticles formed will be more stable and can last longer. Based on previous research, chitosan-modified silver nanoparticles were used for antibacterial activity tests conducted against Escherichia coli and Staphylococcus aureus bacteria and for colorimetric detection of Hg2+ metal in water, where there was a color change in silver nanoparticles from yellow to colorless which showed high selectivity of chemical sensors to detect target analytes. Keywords : Silver Nanoparticles, Reducing Agents, Stabilizer, Chemical sensors.
SILVER NANOPARTICLES CAPPED L-Cysteine AS A MERCURY ION DETECTOR BY COLORIMETRY: A JOURNAL REVIEW Arrasyid, Rizky; Arif, Syaiful; Alimuddin, Alimuddin
PROSIDING SEMINAR KIMIA Vol 2 No 1 (2023): Prosiding SNK 2023
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Nanoparticles are a field of research on the atomic scale with a particle size of 1-100 nm. There are many applications of nanoparticles in various fields, such as heavy metal detectors. One type of nanoparticle that can be used as a detector is L-Cysteine modified silver nanoparticles (AgNPs-L-Cys). Thus, the purpose of this review is to determine the ability of L-Cysteine modified silver nanoparticles to detect heavy metals from literature data. Based on the results of the literature, one of the heavy metals that can be detected using AgNPs-L-Cys is Hg. The color of the solution synthesized by AgNPs-L-Cys is a yellow solution. From the results of some literature, there are differences in color changes in the addition of Hg solution to AgNPs-L-Cys solutions such as changes in color from yellow to white, dark yellow to clear, and brown to light yellow. The maximum wavelengths for detecting Hg2+ metal ions from several literatures were found to be 420 nm, 410 nm, 392 nm and 390 nm. The linearity results were obtained in the range of 1-2500 nM with a relation coefficient of 0.994 and 40-1040 nM with a relation coefficient of 0.998. When compared to gold nanoparticles modified L-Cysteine (GNPs-Cys), AgNPs-L-Cys has a wider range where GNPs-Cys has a range of 100-2000 nM with a correlation coefficient of 0.9747. The LOD results obtained from several literatures were 45.39 nM and 8 nM. The % recovery results obtained from several literatures are 98.38% ± 14.1% and 91.5%∼109.1%. From these data, AgNPs-L-Cys can be used for the detection of Hg2+ metal ions with high selectivity, sensitivity, simplicity and detection speed. Keywords: Silver Nanoparticles, L-Cysteine, Mercury, Colorimetry
SINTESIS NANOPARTIKEL PERAK TERMODIFIKASI KITOSAN SEBAGAI METODE ANALISIS: REVIEW ARTIKEL Zaki, Faisal; Yusuf, Bohari; Arif, Syaiful
PROSIDING SEMINAR KIMIA Vol 2 No 2 (2024): Prosiding SNKT III 2023
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Silver nanoparticles themselves have been very much developed both through the method of synthesizing silver nanoparticles both physically, chemically and biologically. In the chemical method we can do by reducing Ag+ ions into silver nanoparticles which have an attachment to the reductant and also have a very strong ability to reduce Ag+ ions to become silver nanoparticles have a small size. Based on the literature review used, the reductor is Sodium Borohydrate (NaBH4). Chitosan acts as a capping agent which functions as a stabilizer in the silver nanoparticles. Silver nanoparticles modified using chitosan from previous research, namely for activity tests as antioxidants, as metal sensors and as antibacterials Where there is a change in color on silver nanoparticles from clear to yellow. Keywords: Silver Nanoparticles, Chitosan, Reducing Agent, Stabilizer, Chemical Sensor
Co-Authors Adin, Adin Ahmad Mujib, Ahmad alayuddin, Faqih Anabilla, Alifah Rahma Putri Andika, Mohamad Bagus Anggi Sofiana, Karisma Arif, Joni Arrasyid, Rizky Bohari Yusuf Budiono, Lukni Arif Evi Muafiah Firmansyah, Heical Halomoan, Yosua Andhika Hanun Asrohah Koswara Mua’limin, Mua’limin Najiyah, Siti Firqo Nurdin, Ade Akhyar Perkasa, Mustasyar Prasetia, Senata Adi Prayitno, Pungkas Purwadi Purwadi QOMARUZ ZAMAN Rustama, Daya Sabiqunassabiqun, Sabiqunassabiqun Santoso Marsoem, Bambang Saputra, Aswin Caesar Syahwati, Fitriana Ubai Dillah Velayati, Jihan Maghfiroh Wibowo, Reson Zaki, Faisal