bomb.bio | Ahadi Damar Prasetya | Activity https://bomb.bio/members/damar/activity/ Activity feed for Ahadi Damar Prasetya. Tue, 21 Apr 2026 20:24:12 +1200 https://buddypress.org/?v= en-US 30 hourly 2 468714416349a3aada6f12aad0776042 Ahadi Damar Prasetya started the topic Modified Method of Silica Coating Using Ultrasonic Bath in the forum Silica Magnetic Beads https://bomb.bio/forums/topic/modified-method-of-silica-coating-using-ultrasonic-bath/ Wed, 04 Aug 2021 06:56:49 +1200 I have tried to coat the magnetic core with TEOS using ultrasonic bath. However, it turned that my product was hardly seperated by external magnet because the interaction with the dispersant (water) was to strong. I just assumed that its because the hydrogen bonding of between the Fe3O4-SiO2 and water was to strong.

My question is, is it right…Read more

]]> 86a73e0d83d1701db6760d1a1505f3f6 Ahadi Damar Prasetya started the topic Storage of the silica magnetic beads in the forum Silica Magnetic Beads https://bomb.bio/forums/topic/storage-of-the-silica-magnetic-beads/ Thu, 16 Jul 2020 08:01:00 +1200 I already read the protocol for synthesizing  Silica Magnetic Beads from here, and I found the final particle size is around 400 nm. When we store it in water does it sediment in the bottom? Because I thought with a large particle size, the suspension is not stable right? Or is it okay if like that because it does not make any problem when we use…Read more

]]> 44c491136fc3564ea5b67b2767de14a1 Ahadi Damar Prasetya became a registered member https://bomb.bio/activity/p/4791/ Thu, 16 Jul 2020 07:51:34 +1200 0