Nanoparticle Preparation
Nanoparticle Preparation - Related Videos
09:43
Preparation of Silica Nanoparticles Through Microwave-assisted Acid-catalysis
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Cited by 11 •
2013
Silica nanoparticles were prepared using acid-catalysis of a siloxane precursor and microwave-assisted synthetic techniques resulting in the controlled growth of nanomaterials ranging from 30-250 nm in diameter. The growth dynamics can be controlled by varying the initial silicic acid concentration, time of the reaction, and temperature of reaction.
12:00
Preparation and Characterization of SDF-1α-Chitosan-Dextran Sulfate Nanoparticles
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Cited by 9 •
2015
The objective of this protocol is to incorporate SDF-1α, a stem cell homing factor, into dextran sulfate-chitosan nanoparticles. The resultant particles are measured for their size and zeta potential, as well as the content, activity, and in vitro release rate of SDF-1α from the nanoparticles.
08:24
Preparation and Characterization of Novel HDL-mimicking Nanoparticles for Nerve Growth Factor Encapsulation
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Cited by 4 •
2017
Simple homogenization was used to prepare novel, high-density, lipoprotein-mimicking nanoparticles to encapsulate nerve growth factor. Challenges, detailed protocols for nanoparticle preparation, in vitro characterization, and in vivo studies are described in this article.
06:24
Preparation of Nanoparticles for ToF-SIMS and XPS Analysis
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Cited by 14 •
2020
A number of different procedures for preparing nanoparticles for surface analysis are presented (drop casting, spin coating, deposition from powders, and cryofixation). We discuss the challenges, opportunities, and possible applications of each method, particularly regarding the changes in the surface properties caused by the different preparation methods.
09:23
Harmonic Nanoparticles for Regenerative Research
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Cited by 1 •
2014
Protocol details are provided for in vitro labeling human embryonic stem cells with second harmonic generating nanoparticles. Methodologies for hESC investigation by multi-photon microscopy and their differentiation into cardiac clusters are also presented.
FAQs
Top-down preparation starts with a larger material and breaks it into nanoscale structures. Bottom-up preparation assembles atoms, molecules, or polymers through nucleation and growth. These routes differ in how particles form and therefore provide different ways to control particle characteristics during production. Selecting between them depends on the intended particle composition, structure, and biological use.
Concentration, temperature, pH, and mixing all help regulate particle formation. Changes in these conditions can alter how materials assemble or break down during preparation, affecting the resulting particles. Controlling them is therefore important when researchers seek reproducible size, shape, composition, or surface properties for biological studies.
These characteristics strongly influence how nanoparticles behave in biological systems. They can affect interactions relevant to cellular uptake and biodistribution, as well as how particles function in diagnostics, therapeutics, or tissue engineering. Consequently, preparation is not only a production step; it is a way to tune particle behavior for a specific biological investigation.
Researchers can modify nanoparticle surfaces with targeting molecules after or during preparation. This adds a biological recognition feature to the particle and can support investigations involving cellular uptake, biodistribution, diagnostics, or therapeutics. Surface modification is especially useful when the study requires nanoparticles to interact with particular biological targets rather than remain unmodified.
A preparation plan begins by selecting the particle composition and deciding whether a top-down or bottom-up route is appropriate. Researchers then establish conditions such as concentration, temperature, pH, and mixing, while considering any drug, nucleic acid, or imaging agent to be incorporated. Surface modification with targeting molecules can follow when required by the biological application.
Prepared nanoparticles can encapsulate drugs, nucleic acids, or imaging agents. This capability connects the production process with biological delivery and measurement studies, while surface modification can add targeting molecules. The selected cargo and surface design should therefore match the intended investigation, whether it focuses on therapeutic activity, biological tracking, or diagnostic use.
Biological researchers use prepared nanoparticles to study cellular uptake and biodistribution, and to support diagnostics, therapeutics, and tissue engineering. Their value comes from controlling particle properties and, when needed, incorporating biological cargo or targeting molecules. Careful preparation helps relate nanoparticle design to the biological outcome being investigated.