Nanoparticle Biodistribution
Nanoparticle Biodistribution - Related Videos
13:29
Biodistribution of Nano-drug Carriers: Applications of SEM
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2023
Source: Peiman Shahbeigi-Roodposhti and Sina Shahbazmohamadi, Biomedical Engineering Department, University of Connecticut, Storrs, Connecticut Nanoparticles have been increasingly used research towards targeted drug delivery and controlled drug release. While most of these particles have been developed as polymeric or liposomal particles because of their biocompatibility, there is a trend in current research toward the use of metallic and magnetic nanoparticles. These metallic nanoparticles...
14:04
Viral Nanoparticles for In vivo Tumor Imaging
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Cited by 45 •
2012
Plant viral nanoparticles (VNPs) are promising platforms for applications in biomedicine. Here, we describe the procedures for plant VNP propagation, purification, characterization, and bioconjugation. Finally, we show the application of VNPs for tumor homing and imaging using a mouse xenograft model and fluorescence imaging.
06:15
An In Vivo Immunofluorescence Localization Method to Study Antibody Biodistribution
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2025
This video demonstrates an in vivo immunofluorescence localization (IVIL) technique to study the biodistribution of tumor-targeting antibodies in a murine model of breast cancer. Upon the intravenous injection of a tumor-specific antibody in the mouse, the tumor is surgically isolated, and the localization of the antibody within the tumor tissue is confirmed via ex vivo immunostaining.
13:35
Acute and Chronic Models of Hyperglycemia in Zebrafish: A Method to Assess the Impact of Hyperglycemia on Neurogenesis and the Biodistribution of Radiolabeled Molecules
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Cited by 25 •
2017
This work describes methods to establish acute and chronic hyperglycemia models in zebrafish. The aim is to investigate the impact of hyperglycemia on physiological processes, such as constitutive and injury-induced neurogenesis. The work also highlights the use of zebrafish to follow radiolabeled molecules (here, [18F]-FDG) using PET/CT.
10:16
Electroactive Polymer Nanoparticles Exhibiting Photothermal Properties
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Cited by 5 •
2016
A protocol is presented for the synthesis and preparation of nanoparticles consisting of electroactive polymers.
FAQs
Particle size, shape, surface chemistry, dose, and administration route can each alter how nanoparticles circulate, enter cells, and move through tissue barriers. These variables should be evaluated together because changing one material feature may affect several distribution steps at once. Comparing particles under controlled conditions helps bioengineers connect design choices with organ exposure and intended delivery performance.
Interactions with biological fluids can modify nanoparticle behavior before particles reach their target tissues. Those interactions influence circulation, cellular uptake, and transport across tissue barriers, thereby changing where particles accumulate. Studying biodistribution in relation to these fluid interactions helps researchers explain why particles with different surface chemistries or other material properties may produce different exposure patterns after the same administration route.
These material properties help determine how nanoparticles interact with biological environments and cells. Their effects can alter circulation time, cellular uptake, and passage across tissue barriers, which ultimately changes accumulation among organs. In bioengineering, examining these relationships supports rational adjustment of nanoparticle designs when a system shows insufficient delivery, excessive off-target exposure, or unwanted persistence.
Distribution data reveal whether nanoparticles reach relevant tissues, remain there, or accumulate in unintended organs. Such patterns connect material properties with therapeutic or diagnostic performance, while also identifying off-target accumulation, persistence, and potential toxicity. A design that improves delivery is therefore not evaluated only by target exposure; researchers must also consider where particles clear and what tissues experience unintended exposure.
Researchers can follow labeled nanoparticles using imaging or analyze tissues after administration. These approaches provide evidence of particle exposure across organs and allow comparisons between formulations, doses, or administration routes. The resulting measurements help determine whether observed material properties produce the expected circulation, accumulation, and clearance patterns, while also supporting evaluation of off-target exposure and persistence.
A study generally relates the administered nanoparticle formulation and its material properties to exposure patterns among organs. Researchers can compare particles that differ in size, shape, surface chemistry, dose, or administration route, then use labeling, imaging, or tissue analysis to examine their distribution. Such comparisons identify design conditions associated with altered accumulation, clearance, or cellular uptake.
Biodistribution information is especially useful when developing targeted drug-delivery systems, diagnostic agents, or therapeutic nanoparticles. It shows whether a design reaches the desired biological location and whether material accumulates elsewhere. Bioengineers can use these findings to refine particle properties and administration conditions, balancing intended efficacy against off-target accumulation, persistence, and potential toxicity.
Researchers interpret organ exposure, cellular uptake, transport, accumulation, and clearance together rather than treating distribution as a single outcome. Linking these observations to particle properties reveals why a formulation performs well or produces unwanted exposure. The analysis can guide redesign of delivery, diagnostic, or therapeutic nanoparticles so that their biological behavior better matches the intended application.