Telah dilakukan penandaan DNA dengan 32P untuk deteksi resistensi M.tuberculosis terhadap isoniazid dengan teknik biologi molekuler berbasis nuklir. Tuberkulosis (TB) menempati urutan pertama penyebab kematian akibat penyakit infeksi di Indonesia. Salah satu penyebab sulitnya pengendalian TB adalah merebaknya M.tuberculosisyang resisten terhadap isoniazid. Dalam penelitian ini resistensi isoniazid dideteksi dengan menganalisis gen inhA yang merupakan salah satu penyandi resistensi isoniazid. Analisis dilakukan dengan teknik polymerase chain reaction (PCR) untuk mengamplifikasi deoxyribonucleic acid (DNA) dari gen inhA sekaligus dilabel dengan alfa 32P deoxy cytosin triphosphat ([α-32P]dCTP). DNA hasil amplifikasi dianalisis dengan teknik single strand conformation polymerism (SSCP) yang didasarkan pada perubahan mobilitas pita DNA dalam gel poliakrilamid setelah divisualisasi dengan autoradiografi. Hasil analisis terhadap 100 sampel yang diuji, diketahui bahwa 13,0% sampel diduga resisten terhadap isoniazid. Teknik biologimolekuler dapat digunakan untuk mendeteksi resistensi secara lebih cepat dan sensitif, serta dapat digunakan sebagai data pendukung pengobatan pasien TB. Perubahan mobilitas pita DNA gen inhA dapat digunakan untuk analisis resistensi M.tuberculosis terhadap isoniazid.
Electroactive materials with excellent performance are developed to be applied in different fields. In this study, Graphene Oxide (GO) was synthesized using the Hummer method then reduced and modified with Cu trough gamma irradiation (radiolytic reduction) for dose variations. The optimum dose that produces the highest electroactive is 35 kGy which was tested with cyclic voltammetry. The results of FTIR analysis show the characteristics of functional groups found in GO and rGO are different. The modification of rGO with Cu was successfully shown from the results of XRD and SEM-EDX analysis. The results of the XRD analysis showed that there are two peaks at position 2 theta 10.58° which showed the presence of GO and at position 2 theta 42.55° which indicates the presence of Cu. The results of the SEM-EDX analysis showed that there is 2.25% wt of Cu on the surface of the rGO.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.