Droplet Delivery
Droplet Delivery - Related Videos
10:22
High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices
0 Views •
Cited by 1 •
2009
A novel microfluidic system has been developed using the phenomenon of passive pumping and a user controlled fluid delivery system. This microfluidic system has the potential to be used in a wide variety of biological applications given its low cost, ease of use, volumetric precision, high speed, repeatability and automation.
13:10
Title Cell Encapsulation by Droplets
0 Views •
Cited by 4 •
2007
02:37
Ophthalmic Drug Delivery for Noninvasive Neuromodulation in a Mouse Model
0 Views •
2025
Source: Zhan, J., et al. Non-invasive Strategies for Chronic Manipulation of DREADD-controlled Neuronal Activity. J. Vis. Exp. (2019)This video demonstrates a non-invasive ophthalmic drug delivery method for targeted neuromodulation. The drug is delivered via eye drops, absorbed into the circulation, crosses the blood-brain barrier, and activates specific neuronal receptors.
14:16
Fluorescence detection methods for microfluidic droplet platforms
0 Views •
Cited by 20 •
2011
Droplet-based microfluidic platforms are promising candidates for high throughput experimentation since they are able to generate picoliter, self-compartmentalized vessels inexpensively at kHz rates. Through integration with fast, sensitive and high resolution fluorescence spectroscopic methods, the large amounts of information generated within these systems can be efficiently extracted, harnessed and utilized.
08:14
Measuring Spray Droplet Size from Agricultural Nozzles Using Laser Diffraction
0 Views •
Cited by 30 •
2016
We present protocols to be used in the measurement of spray droplet size from agricultural nozzles used in both aerial and ground based agrochemical applications. These methods presented were developed to provide consistent and repeatable droplet size data both inter- and intra-laboratory, when using laser diffraction systems.
FAQs
Immiscible fluids provide the physical basis for droplet delivery: they remain separate while flow conditions generate discrete liquid compartments. By controlling these fluids, a system can regulate droplet formation and movement, then support transfer, encapsulation, or mixing. This separation helps organize biological reactions without requiring one continuous shared volume.
Encapsulation determines which biological components occupy the same compartment. Cells, nucleic acids, proteins, or reagents can be placed in droplets according to the experimental design, allowing a reaction or delivery event to occur in a spatially separated unit. This organization is useful when researchers need to examine many small-volume events individually rather than only a pooled measurement.
Isolation at the droplet level can limit cross-contamination between parallel biological reactions. Each compartment separates its contents from neighboring droplets, helping preserve the identity of individual samples or reaction conditions. As a result, droplet delivery supports experiments in which independent events must remain distinguishable, including single-cell analysis and digital assays.
Precise handling is important because the method is not limited to forming droplets; it also supports controlled transfer and mixing. These operations let researchers place biological materials together, deliver reagents to selected compartments, or combine contents during an experiment. The resulting control can improve organization and reduce unnecessary reagent consumption across many parallel reactions.
A basic workflow begins by preparing the biological material and reagents, using immiscible fluids to generate discrete droplets, and manipulating those droplets for transfer, encapsulation, or mixing. Researchers can then use the separated compartments as reaction or delivery units and evaluate the resulting biological events. The sequence is adaptable to different assay designs and materials.
Researchers apply droplet delivery when experiments benefit from many isolated, small-volume measurements. In single-cell analysis, droplets can organize observations around individual cells; in digital assays, they can separate reaction events for parallel analysis. The same compartmental strategy supports targeted reagent delivery and drug screening, where controlled delivery and efficient reagent use are valuable.
In biological studies of cellular interactions, compartmentalization creates a practical way to study cells or associated reagents in organized environments. Droplet-based handling can also support high-throughput research by arranging numerous reactions or delivery events in parallel. These capabilities connect microscale liquid control with questions about cell behavior, molecular reactions, and biomedical technology development.