Implant-tissue Interface
Implant-tissue Interface - Related Videos
07:51
Isolation of Leukocytes from the Murine Tissues at the Maternal-Fetal Interface
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Cited by 44 •
2015
Described herein is a protocol to isolate and analyze the infiltrating leukocytes of tissues at the maternal-fetal interface (uterus, decidua, and placenta) of mice. This protocol maintains the integrity of most cell surface markers and yields enough viable cells for downstream applications including flow cytometry analysis.
07:59
Implantation of Engineered Tissue in the Rat Heart
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Cited by 4 •
2009
Here, we describe a cardiac surgical procedure to implant engineered tissue in the atrioventricular (AV)-groove of an adult Lewis rat.
11:31
Intact Histological Characterization of Brain-implanted Microdevices and Surrounding Tissue
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Cited by 6 •
2013
Here we present a histological method for capturing, labeling, optically clearing, and imaging the intact brain tissue interface around chronically implanted microdevices in rodent brain tissue. Results from the techniques comprising this method are useful for understanding the impact of various penetrating brain-implants on their surrounding tissue.
10:18
Fiber-optic Implantation for Chronic Optogenetic Stimulation of Brain Tissue
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Cited by 50 •
2012
The development of optogenetics now provides the means to precisely stimulate genetically defined neurons and circuits, both in vitro and in vivo. Here we describe the assembly and implantation of a fiber optic for chronic photostimulation of brain tissue.
07:13
Implantation and Control of Wireless, Battery-free Systems for Peripheral Nerve Interfacing
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Cited by 4 •
2021
This is a protocol for the surgical implantation and operation of a wirelessly powered interface for peripheral nerves. We demonstrate the utility of this approach with examples from nerve stimulators placed on either the rat sciatic or phrenic nerve.
FAQs
Surface chemistry influences which proteins adsorb after implantation, and those adsorbed proteins help determine how cells interact with the device. This interaction can support cell adhesion and direct tissue integration, or contribute to inflammation and fibrous encapsulation. In bioengineering, changing the material surface provides a way to tune biological behavior without changing the device’s overall function.
Micro- and nanoscale patterning changes the physical cues presented to nearby cells, while mechanical properties affect how the interface behaves relative to surrounding tissue. Together with surface chemistry, these features regulate cell adhesion and the balance between direct tissue integration and fibrous encapsulation. Their design is central when engineers seek a stable interface for long-term device performance.
Degradation can alter the material boundary over time, changing the conditions experienced by cells, extracellular matrix, fluids, and immune cells. Because interface behavior depends partly on degradation, material choices must account for how the device may evolve after implantation. This consideration is especially relevant to long-term stability, biocompatibility, and consistent function.
Controlled release of bioactive signals provides a way to influence cellular and immune interactions at the device boundary. Rather than relying only on the base material, engineers can combine release strategies with surface coatings or micro- and nanoscale patterning. This integrated approach aims to promote favorable adhesion or tissue integration while limiting inflammation or fibrous encapsulation.
Material selection establishes the underlying chemical and mechanical environment, while coatings modify the surface presented to surrounding tissue. Engineers may then add micro- or nanoscale patterns and incorporate controlled release of bioactive signals. Considering these choices together helps align interface behavior with goals such as biocompatibility, tissue integration, stability, and long-term device function.
Orthopedic fixation, dental implants, vascular devices, and neural interfaces all depend on how implanted materials interact with surrounding biology. In each case, interface engineering can address different performance needs through material selection, coatings, patterning, or bioactive signal release. These design choices aim to improve stability, biocompatibility, tissue integration, and long-term function.
Studying the interface connects material features with outcomes such as protein adsorption, cell adhesion, inflammation, fibrous encapsulation, and direct tissue integration. This information helps bioengineers select or modify devices to improve stability, biocompatibility, and long-term function. The same framework links microscopic interface behavior to patient outcomes, making it useful for evaluating different design strategies.