Green Synthesis and Antibacterial Activity of Silver Nanoparticles: A Review

The purpose of this study was to determine the effect of silver nanoparticles (AgNPs) from different green synthesis medium and their various particle sizes on antibacterial activity. The article review method compares the results of 11 studies obtained from the PubMed database, Web of Science, and ScienceDirect indexed by Scopus in the last five years. The search was conducted based on the phrases nanoparticles, antibacterial, Green synthesis, and AgNPs. Green synthesis of AgNPs with various plant extracts produces different sizes of nanoparticles. The smallest size AgNPs were obtained in the range of 5-15 nm and an average of 13 nm extracted using the leaves of the Pacific Yew tree (Taxus brevifolia). Meanwhile, AgNPs with the best antibacterial effectiveness were obtained from the Blume flower extract (Wedelia urticifolia) measuring less than 30 nm providing a zone of inhibition for S. aureus, K. pneumoniae, E. coli, and P. aeruginosa bacteria

PEMBERDAYAAN MASYARAKAT MELALUI PENGIMPLEMENTASIAN SMART FARMING GUNA MENINGKATKAN EFISIENSI BUDIDAYA PADI KONVERSI ORGANIK DI DESA GLAGAHWANGI, KABUPATEN KLATEN

Pertanian merupakan sektor yang memiliki pengaruh besar di Indonesia. Kestabilan sektor ini perlu diperhatikan untuk menjaga keadaan perekonomian. Telah terjadi banyak perubahan akibat kemajuan teknologi, salah satunya pada sektor pertanian yaitu penggunaan alat modern dan berbasis internet. Desa Glagahwangi, Kabupaten Klaten merupakan desa dengan potensi pertanian yang sangat besar namun belum ditunjang dengan penerapan teknologi modern. Tim PPK Ormawa BEM FP UNS melaksanakan kegiatan pengenalan dan pengimplementasian smart farming di Desa Glagahwangi untuk meningkatkan efektivitas dan efisiensi budidaya pertanian. Kegiatan tersebut dilakukan dengan metode ceramah, diskusi, dan pelatihan. Teknologi pertanian yang dikenalkan meliputi soil sensor NPK tanah, kelembaban dan pH tanah, mini AWS untuk mengetahui suhu dan kelembaban udara serta intensitas cahaya, drone penyemprot pupuk cair, serta Aplikasi Tandhur untuk memantau budidaya pertanian konversi organik dalam segi tenaga dan biaya. Rangkaian kegiatan ini bertujuan untuk meningkatkan penerapan teknologi pertanian bagi petani sehingga dapat efektif dan efisien serta menarik minat terhadap generasi muda untuk terjun langsung ke sektor pertanian melalui penerapan teknologi modern

PENGARUH EKSPETASI PENDAPATAN, MOTIVASI DAN LINGKUNGAN KELUARGA TERHADAP MINAT BERWIRAUSAHA DIGITAL MAHASISWA FAKULTAS EKONOMI DAN BISNIS ISLAM UIN PROF. K.H. SAIFUDDIN ZUHRI PURWOKERTO

Saat ini perkembangan teknologi sudah semakin canggih, mahasiswa sebagai sumber daya manusia yang mempunyai ide kreatif serta inovatif dapat memulai sebuah usaha yang dikehendakinya atau yang diminatinya. Minat atau sebuah rasa tertarik pada wirausaha dapat dipengaruhi oleh berbagai macam faktor. Penelitian ini bertujuan untuk mengetahui pengaruh ekspetasi pendapatan, motivasi dan lingkungan keluarga terhadap minat berwirausaha digital. Penelitian ini menggunakan metode penelitian kuantitatif. Populasi dalam penelitian ini adalah mahasiswa Fakultas Ekonomi dan Bisnis Islam UIN Prof. K. H. Saifuddin Zuhri Purwokerto dengan jumlah sampel yang digunakan sebanyak 94 responden. Metode pengambilan sampel yang digunakan adalah probability sampling dengan teknik sampel yang digunakan random sampling. Analisis data dilakukan melalui korelasi rank spearman, koefisien konkordansi kendall w dan analisis regresi ordinal dengan alat bantu aplikasi IBM SPSS versi 24. Pada penelitian menunjukan hasil bahwa secara parsial Ekspetasi pendapatan berpengaruh secara signifikan terhadap minat berwirausaha digital, Motivasi berpengaruh secara signifikan terhadap minat berwirausaha digital dan Lingkungan keluarga berpengaruh secara signifikan terhadap minat berwirausaha digital. Secara simultan Ekspetasi pendapatan, motivasi dan lingkungan keluarga berpengaruh signifikan terhadap minat berwirausaha digital

Isolation and activity test of antioxidant, antibacterial, and cytotoxic compounds from the stem bark of Aglaia foveolata Pannell

Aglaia foveolata Pannell (A. foveolata) is a type of plant that has many benefits, including the skin, leaves, roots, and seeds as medicinal ingredients. The potential of this plant is inseparable from the content of various bioactive compounds. This study aims to isolate, characterize the active compound from the stem bark of A. foveolata and test its activity as an antioxidant with the ABTS method, cytotoxic (MCF-7 cancer cells) with the MTT method, and antibacterial (bacterial strains ATCC and MDR) with the MIC. There are four isolated compounds obtained, namely (1) 17,24-epoxy-25-hydroxybaccharan-3-one, (2) β-stigmasterol glucoside, (3) Eichlerianic acid, and (4) 17,24-epoxy-25 -hydroxy-3- oxobaccharan-21-oic acid, which is a class of triterpenoid and steroid compounds. The best activity as an antioxidant was compound 3 (25.68 µg/mL); cytotoxic activity against MCF-7 cells namely compound 4 (94.59 µg/mL); antibacterial activity against ATCC strains: (1) P. aeruginosa namely compound 3 (29.4 µg/mL), (2) E. coli, (3) S. aureus, (4) B. subtilis for compounds 1, 2, and 4 have the same activity (62.5 µg/mL) while compound 3 was not active; MDR bacterial strains: (1) P. aeruginosa namely compound 4 (62.5 µg/mL), (2) E. coli namely compound 3 (62.5 µg/mL), (3) S. aureus namely compound 4 (62 .5 µg/mL), (4) B. subtilis namely compound 4 (62.5 µg/mL) and (5) K. pneumoniae namely compound 1 (125 µg/mL)

Analysis of the Survival of Children Under Five in Indonesia and Associated Factors

The under-five mortality rate (U5MR) remains a challenge for developing nations, including Indonesia. This study aims to assess the key factors associated with mortality of Indonesian infants using survival analysis. Data taken from 14,727 live-born infants (2007-2012) was examined from the nationally representative Indonesian Demographic Health Survey. The Weibull hazard model was performed to analyse the socioeconomic status and related determinants of infant mortality. The findings indicated that mother factors (education, working status, autonomy, economic status, maternal age at birth, birth interval, type of births, complications, history of previous mortality, breastfeeding, antenatal care and place of delivery); infant factors (birth size); residence; and environmental conditions were associated with the childhood mortality. Rural or urban residence was an important determining factor of infant mortality. For example, considering the factor of a mother's education, rural educated mothers had a significant association with the survival of their infants. In contrast, there was no significant association between urban educated mothers and their infants' mortality. The results showed obvious contextual differences which determine the childhood mortality. Socio-demographic and economic factors remain critical in determining the death of infants. This study provides evidence for designing targeted interventions, as well as suggesting specific needs based on the population's place of residence, in the issue of U5MR. Further interventions should also consider other identified variables while developing programmes to address infant's needs. © Published under licence by IOP Publishing Ltd