Researchers at Penn State have developed a granular hydrogel that contains both hydrogel microparticles and self-assembling nanoparticles, and which could be highly suited for bioprinting purposes. The concept involves the nanoparticles becoming adsorbed onto the hydrogel microparticles and reversibly adhering the microparticles together, providing (Read more...)
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Magnetic Microrobots Assist with Root Canal Treatment
Researchers at the University of Pennsylvania have developed a microrobot system that can help with biofilm disruption, drug delivery, and sample retrieval, all within the restrictive space of the root canal. It can be difficult for dentists to know if they have removed all the infectious material when performing a root canal, and failure to [&hell (Read more...)
Magnetic Microrobots to Brush and Floss Teeth
Researchers at the University of Pennsylvania have developed a technique to manipulate magnetic microrobots into bristle and string shaped-structures that can brush and floss teeth. The iron oxide nanoparticle-based microrobots also activate hydrogen peroxide to release bacteria-killing free radicals to further target bacterial populations in the m (Read more...)
Protein Coating Protects Nanoparticles from Immune Attack
Researchers at the University of Pennsylvania School of Medicine have created a new coating for nanoparticles that can help to protect them from attacks by the immune system. The approach, which uses naturally occurring proteins that can inhibit the complement system, can significantly reduce immune destruction of nanoparticles, meaning that more m (Read more...)
Iron Oxide Nanoparticles Suppress Oral Biofilms
Collaborators from University of Pennsylvania and Indiana University have tested a ‘”nanozyme” system designed to reduce dental plaque. The technology consists of iron oxide nanoparticles that are applied to tooth enamel before a follow-up rinse of hydrogen peroxide. The nanoparticles act as an “enzyme” to activate the (Read more...)