Modified White Trap

The Modified White Trap is a laboratory method for recovering entomopathogenic nematodes from infected insect cadavers, supporting the study of these soil-associated biological control agents. In the trap, cadavers are positioned above a water-filled collection area, allowing emerging infective juveniles to leave the host, move across a moist surface, and migrate into the surrounding water without direct soil extraction. Researchers can then collect, observe, and quantify the nematodes for identification, propagation, and bioassays. In environmental research, this method helps assess nematode occurrence in soil samples and evaluate their potential for sustainable management of insect pests.

Modified White Trap - Related Videos

Research

JoVE Journal - Biochemistry

Localization of SUMO-modified Proteins Using Fluorescent Sumo-trapping Proteins

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Cited by 3 •

2019

SUMO is an essential and highly conserved, small ubiquitin-like modifier protein. In this protocol we are describing the use of a stress-tolerant recombinant SUMO-trapping protein (kmUTAG) to visualize native, untagged SUMO conjugates and their localization in a variety of cell types.

Education

JoVE Core - Social Psychology

Social Traps

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2020

Social traps are negative situations where people get caught in a direction or relationship that later proves to be unpleasant, with no easy way to back out of or avoid. The concept was orignally introduced by John Platt who applied psychology to Garrett Hardin's "Tragedy of the Commons", where in New England herd owners could let their cattle graze in the common ground. This situation seems like a good idea, but an individual could have an advantage. If they owned more cows, the larger...

Research

JoVE Journal - Engineering
Free Sample

Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

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Cited by 19 •

2017

This paper presents a microfabrication methodology for surface ion traps, as well as a detailed experimental procedure for trapping ytterbium ions in a room-temperature environment.

Research

JoVE Journal - Immunology and Infection

Quantifying Myeloperoxidase-DNA and Neutrophil Elastase-DNA Complexes from Neutrophil Extracellular Traps by Using a Modified Sandwich ELISA

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Cited by 12 •

2023

We present a protocol for a modified sandwich enzyme-linked immunosorbent assay technique to quantitatively measure two components of neutrophil extracellular trap remnants, myeloperoxidase conjugated-DNA and neutrophil elastase conjugated-DNA complexes,derived from activated neutrophils.

Research

JoVE Journal - Engineering
Free Sample

Optical Trapping of Nanoparticles

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Cited by 7 •

2013

The following setup approach details low power optical trapping of dielectric nanoparticles using a double-nanohole in metal film.

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