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All Journal Acta Chimica Asiana Jurnal Ilmiah STOK Bina Guna Medan
Shahnaz
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Chemistry Education

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Aqueous phase synthesis of 2-D copper nanosheets stabilized by organic moieties with enhanced photocatalytic and biological activity. Sohail, Asma; Fatriasari, Widya; Zia, Sobia; Shahnaz; Irshad , Shagufta
Acta Chimica Asiana Vol. 7 No. 2 (2024)
Publisher : The Indonesian Chemical Society, Chapter Nusa Tenggara and The University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/aca.v7i2.211

Abstract

Copper nanosheets supported by organic ligands are significant for biological, electrical, and catalytic applications. The discovery that the coronavirus has a significantly reduced maximum survival period on copper surfaces has elevated the utility of copper nanomaterials. Here, we report a non-hazardous and inexpensive biological technique for forming copper nanosheets (Cu Nsts); synthesis of Cu Nsts has always been a challenge for researchers due to the significant problem of oxidation; in this research, we have successfully synthesized stable Cu Nsts by using Saussurea lappa root extract for the first time, the obtained Cu Nsts has a shiny black color with self-standing ability, the crystal structure of Cu nanosheets was determined using Powder X-ray diffraction (PXRD), Scanning electron microscopy (SEM) revealed that copper nanoparticles grow and aggregates to form Cu Nsts. The surface morphology of Cu Nsts is clear evidence of their synthesis. These nanosheets were very proficient in the deduction of harmful dye (methylene blue); within 105 minutes, the degradation capacity of Cu nanosheets for methylene blue reached 93.493%. This remarkable property of Cu Nsts as a photocatalyst gives potential application for removing dyes from industrial wastewater. Cu Nsts showed excellent antioxidant and antibacterial activity. The Cu Nsts demonstrated potent inhibitory zones against E. coli, with inhibition zones measuring 39 mm. This research lays the foundations for purifying wastewater from harmful dyes and bacteria.
Pengaruh Kekuatan Otot Lengan Dan Koordinasi Mata Tangan Terhadap Hasil Servis Panjang Mahasiswa PJKR Unimed Pada Mata Kuliah Bulutangkis Shahnaz; JuniYanti Nasution; Thohirah Harahap; Irwansyah Ramadhan Prakasa
Jurnal Ilmiah STOK Bina Guna Medan Vol 12 No 3 (2024): JURNAL ILMIAH STOK BINA GUNA MEDAN
Publisher : Sekolah Tinggi Olahraga dan Kesehatan Bina Guna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55081/jsbg.v12i3.3021

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh secara bersama-sama antara kekuatan otot lengan dan koordinasi mata tangan terhadap hasil servis panjang mahasiswa PJKR Unimed pada mata kuliah bulutangkis. Jenis penelitian ini adalah exposfacto dengan rancangan regresional. Subjek penelitian ini adalah seluruh mahasiswa Program Studi PJKR yang mengampu mata kuliah bulutangkis sebanyak 25 orang. Teknik pengambilan data dengan menggunakan tes dan pengukuran kekuatan otot lengan (tes pushup), koordinasi mata-tangan (lempar tangkap bola tenis) dan tes servis panjang. Hasil analisis data menunjukan bahwa terdapat pengaruh yang signifikan secara bersama-sama antara kekuatan otot lengan dan koordinasi mata-tangan terhadap hasil servis panjang mahasiswa PJKR Unimed pada mata kuliah bulutangkis.
Co-Authors Irshad , Shagufta Irwansyah Ramadhan Prakasa JuniYanti Nasution Sohail, Asma Thohirah Harahap Widya FATRIASARI Zia, Sobia