Delivery Efficiency
Delivery Efficiency - Related Videos
13:12
Efficient Gene Delivery into Multiple CNS Territories Using In Utero Electroporation
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Cited by 31 •
2011
In utero electroporation allows for rapid gene delivery in a spatially- and temporally-controlled manner in the developing central nervous system (CNS). Here we describe a highly adaptable in utero electroporation protocol that can be used to deliver expression constructs into multiple embryonic CNS domains, including the telencephalon, diencephalon and retina.
05:06
An Efficient Transgenesis Approach for Gene Delivery in the Mouse Embryonic Heart
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2024
This protocol presents a detailed methodological framework for electroporation-based transgenesis of cardiac cells in developing mouse hearts. The video assets provided here will facilitate learning of this versatile technique.
08:29
Generation of Cationic Nanoliposomes for the Efficient Delivery of In Vitro Transcribed Messenger RNA
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Cited by 6 •
2019
Here we describe a protocol for the generation of cationic nanoliposomes, which is based on the dry-film method and can be used for the safe and efficient delivery of in vitro transcribed messenger RNA.
08:02
Cell Squeezing as a Robust, Microfluidic Intracellular Delivery Platform
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Cited by 40 •
2013
Rapid mechanical deformation of cells has emerged as a promising, vector-free method for intracellular delivery of macromolecules and nanomaterials. This protocol provides detailed steps on how to use the system for a broad range of applications.
10:51
Microscale Vortex-assisted Electroporator for Sequential Molecular Delivery
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Cited by 2 •
2014
A microfluidic vortex assisted electroporation platform was developed for sequential delivery of multiple molecules into identical cell populations with precise and independent dosage control. The system’s size based target cell purification step preceding electroporation aided to enhance molecular delivery efficiency and processed cell viability.
FAQs
Biological barriers can limit whether a payload reaches the intended tissue, remains intact, and becomes available to target cells. A system must therefore account for material interactions with barriers before cellular entry occurs. This relationship helps explain why improving transport alone may not improve results if the payload is degraded, mislocalized, or unable to produce biological activity.
Protection helps preserve a payload in a functional form during transport and reduces losses caused by degradation. Without adequate preservation, a system may show transport or uptake but produce limited biological activity. Evaluating payload integrity alongside delivery rate distinguishes successful movement from delivery that actually maintains the payload’s intended function.
Cellular uptake determines whether a payload enters the relevant target cells or tissues, while release conditions determine whether it becomes available at the appropriate location and time. Efficient transport therefore requires more than reaching a tissue. Researchers consider entry, localization, and release together because failure at any stage can reduce the final biological effect.
No single measurement captures every aspect of performance. Delivery rate describes transport, uptake indicates entry into cells or tissues, localization shows where the payload accumulates, and biological activity reveals whether it functions. Considering these measures together helps researchers identify whether losses arise during transport, targeting, payload preservation, or functional release.
Evaluation begins by examining how effectively the system transports its payload and whether the payload remains functional. Researchers then assess uptake, localization, and biological activity to determine where performance is gained or lost. Comparing these outcomes can guide improvements to the delivery system while showing whether increased transport also produces a meaningful biological result.
Improvement depends on the interaction among the delivery material, biological barriers, target cells or tissues, payload, and release conditions. Researchers seek a balance that increases intended uptake and localization while limiting degradation and off-target distribution. This systems-level view is important because optimizing one stage may not improve overall performance if another stage remains limiting.
Delivery efficiency is central to drug delivery, gene therapy, vaccine development, tissue engineering, and regenerative medicine. In these settings, better transport and functional release can increase effectiveness, reduce dose requirements, or limit unwanted effects. The same evaluation principles also help assess engineered biomaterials designed to place therapeutic or biological payloads at intended destinations.