Bio Particles

Bio particles are microscopic biological entities or biomolecule-containing structures, including viruses, bacterial components, extracellular vesicles, and engineered particles, that influence biological systems and are important in immunology and infection research. Their effects depend on physical properties and surface molecules that determine how they interact with host receptors, cross biological barriers, trigger innate immune recognition, or alter antigen presentation. Studying these interactions helps researchers characterize pathogen transmission, inflammatory responses, and immune evasion, while engineered bio particles support vaccine development, diagnostic assays, and targeted delivery of immunomodulatory molecules. Their analysis also informs strategies for controlling infection and designing more precise therapies.

Bio Particles - Related Videos

Research

JoVE Journal - Bioengineering
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Bridging the Bio-Electronic Interface with Biofabrication

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Cited by 3 •

2012

This article describes a biofabrication approach: deposition of stimuli-responsive polysaccharides in the presence of biased electrodes to create biocompatible films which can be functionalized with cells or proteins. We demonstrate a bench-top strategy for the generation of the films as well as their basic uses for creating interactive biofunctionalized surfaces for lab-on-a-chip applications.

Research

JoVE Journal - Biology

Patterning of Embryonic Stem Cells Using the Bio Flip Chip

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Cited by 2 •

2007

We demonstrate a simple method for placing cells at desired locations on a substrate. This method patterns cells by flipping a silicone chip containing microwells filled with cells onto the substrate. This method provides a new way to modulate diffusible and juxtacrine signaling between cells.

Determination of Carbonyl Functional Groups in Bio-oils by Potentiometric Titration: The Faix Method

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Cited by 5 •

2017

Here we present a potentiometric titration technique for accurately quantifying carbonyl compounds in pyrolysis bio-oils.

Research

JoVE Journal - Biology
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Concentration Determination of Nucleic Acids and Proteins Using the Micro-volume Bio-spec Nano Spectrophotometer

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Cited by 19 •

2011

This communication presents data on the accuracy and reproducibility of the BioSpec-nano UV-VIS spectrophotometer for dsDNA and protein quantitation. Even with ultra-small volumes (1 to 2 L), reproducibility is excellent, while the automated wiping function improves throughput and results in minimal carryover for more precise results.

Education

JoVE Core - Chemistry

Subatomic Particles

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2020

Dalton was only partially correct about the particles that make up matter. All matter is composed of atoms, and atoms are composed of three smaller subatomic particles: protons, neutrons, and electrons. These three particles account for the mass and the charge of an atom. The Discovery of the Electron The first clue about the subatomic structure came at the end of the 19th century when J.J. Thomson discovered the electron using a cathode ray tube. This apparatus consisted of a sealed glass...

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