Entrapment Efficiency
Entrapment Efficiency - Related Videos
11:38
CN-GELFrEE - Clear Native Gel-eluted Liquid Fraction Entrapment Electrophoresis
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Cited by 11 •
2016
This protocol describes how to prepare and perform clear native gel-eluted liquid fraction entrapment electrophoresis (CN-GELFrEE), a native separation technique for non-covalent biomolecular assemblies and proteins from heterogeneous samples that is compatible with various downstream protein analysis techniques.
07:32
Preparation and Characterization of Individual and Multi-drug Loaded Physically Entrapped Polymeric Micelles
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Cited by 11 •
2015
The goal of this protocol is to describe the preparation and characterization of physically entrapped, poorly water soluble drugs in micellar drug delivery systems composed of amphiphilic block copolymers.
00:11
Preparation and Characterization of Nanoliposomes for the Entrapment of Bioactive Hydrophilic Globular Proteins
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Cited by 15 •
2019
This study describes classical hydration using the thin lipid film method for nanoliposome preparation followed by nanoparticle characterization. A 47 kDa-hydrophilic and globular protein, tarin, is successfully encapsulated as a strategy to improve stability, avoid fast clearance, and promote controlled release. The method can be adapted to hydrophobic molecules encapsulation.
09:21
Efficiency of Liquid-liquid Extraction
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2023
Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA Liquid-liquid extraction (LLE) is a separation technique used instead of distillation when either: (a) the relative volatilities of the compounds to be separated are very similar; (b) one or more of the mixture components are temperature sensitive even near ambient conditions; (c) the distillation would require a very low pressure or a very high distillate/feed...
01:26
Output Efficiency: Achieving Output Efficiency
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2025
Output efficiency happens when resources are used in a way that balances what people want with how goods are produced. This means the marginal rate of substitution (MRS) matches the marginal rate of transformation (MRT). When this balance is reached, the economy makes the most of its resources without waste.Take the example of bread and milk. If consumers are happy to trade 2 loaves of bread for 1 liter of milk, the MRS is 2. But if producers only need to give up 1 loaf of bread to produce 1...
FAQs
Entrapment efficiency is strongly shaped by how the carrier and active compound interact during formulation. Carrier composition can determine how much cargo is retained, while drug properties affect compatibility with the carrier. Solvent selection, mixing conditions, and particle-formation conditions further influence retention. Comparing formulations under controlled preparation conditions helps identify which design variables improve cargo incorporation.
Solvent selection and mixing are not merely processing details: they can alter how the active compound becomes associated with the forming carrier. Particle formation then influences whether that material remains within the resulting particles or vesicles. Changes at these stages may increase or decrease the retained fraction, so optimization should evaluate the complete preparation sequence rather than changing carrier composition alone.
Entrapment efficiency should not be interpreted in isolation. Loading capacity, release behavior, and stability provide complementary information about formulation performance. Considering these measures together gives a more complete assessment than relying on a single percentage, because a carrier may retain cargo while still requiring evaluation of how much it contains, how it releases that cargo, and whether its performance remains consistent.
Measurement begins by separating unencapsulated active material from the loaded particles or vesicles. The amount retained in the carrier is then compared with the total amount used during formulation, and the result is expressed as a percentage. This separation step is central because incomplete removal of free compound can make the formulation appear to retain more cargo than it actually does.
Researchers can use the measurement to compare alternative carrier compositions, drug properties, solvents, mixing conditions, or particle-formation conditions. A formulation that retains a larger fraction of the starting cargo may offer greater transport potential, but the value should be reviewed alongside loading capacity, release behavior, and stability. This combined assessment helps avoid optimizing one metric at the expense of overall platform performance.
In bioengineered carriers, the measurement links preparation conditions with the amount of active cargo available for transport. It supports evaluation of particles or vesicles designed to carry therapeutic compounds and helps researchers judge formulation consistency across candidate systems. Because delivery platforms must also be assessed for release and stability, entrapment efficiency contributes to, rather than replaces, broader performance evaluation.