Abstrak -Telah dilakukan sintesis nanopartikel Fe 3 O 4 yang kemudian dienkapsulasi dengan Polyvinyl alcohol (PVA) dengan perbandingan 1:0, 1:3, 1:4, 1:5 dan 1:6 menggunakan metode kopresipitasi. Pengukuran dilakukan menggunakan sistem spektroskopi impedansi terkomputerisasi pada wilayah frekuensi 10 kHz hingga 120 kHz untuk mengetahui sifat dielektrik dari nanopartikel. Hasil pengukuran sifat dielektrik menunjukkan nilai permitivitas dielektrik pada seluruh sampel mengalami penurunan dengan bertambahnya frekuensi. Penambahan PVA mempengaruhi sifat dielektrik dari nanopartikel Fe 3 O 4 . Nilai permitivitas dielektrik riil seluruh sampel secara berturut-turut pada frekuensi 10 kHz yaitu 522, 212, 36, 234 dan 692. Nilai permitivitas dielektrik yang paling baik adalah nanopartikel Fe 3 O 4 +PVA (1:6 ) sehingga dapat digunakan untuk aplikasi biosensor Surface Plasmon Resonance(SPR) sebagai bahan aktif untuk meningkatkan sensitifitas sensor dan mengikat biomolekuler. Abstract -Fe 3 O 4 nanoparticles have been synthesis and then encapsulated withPolyvinyl alcohol (PVA) with ratio of 1:0, 1:3, 1:4, 1:5 and 1:6 using coprecipitation method. Measurements were performed using a computerized system impedance spectroscopy in the frequency range of 10 kHz to 120 kHz to determine the dielectric properties of the nanoparticles. The measurement results show the value of the dielectric properties of the dielectric permittivity of the sample decreasing with increasing frequency. The addition of PVA affected the dielectric properties of Fe 3 O 4 nanoparticles. Value of dielectric pemittivity of all sample at frequency 10 kHz is 522, 212, 36, 234 and 692, respectively. The value of the dielectric permittivity is Fe 3 O4 + PVA nanoparticles (1:6) so that it can be used for Surface Plasmon Resonance (SPR) Biosensors as the active material to increase sensor sensitivity and to bind biomolecular.
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.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.