Related Experiment Video
Updated: Jan 21, 2026

07:01
Zebrafish Animal Model for the Study of Allergic Reactions in Response to Tick Saliva Biomolecules
Published on: September 16, 2022
2.2K
Superficial allergic lymphangitis with a cutaneous recall reaction to a mosquito bite
1Children's Hospital Los Angeles, Division of Clinical Immunology and Allergy, Department of Pediatrics Keck School of Medicine, University of Southern California, Los Angeles, California.
Abstract
No abstract available in PubMed .
Related Concept Videos
Allergic Reactions
32.1K
Overview
32.1K
Allergic Drug Reactions
1.4K
Allergic reactions related to drugs are hypersensitivity responses driven by the immune system and bear no connection to the drug's therapeutic action. While drugs in isolation do not trigger an immune response, they can interact with endogenous proteins to form antigens. These antigens stimulate lymphocytes to produce antibodies. IgE-type antibodies attach themselves to mast cells. Upon subsequent exposure to the same stimulus, the antigen-antibody interaction is initiated, unleashing...
1.4K
Enthalpies of Reaction
40.4K
Hess’s law can be used to determine the enthalpy change of any reaction if the corresponding enthalpies of formation of the reactants and products are available. The main reaction may be divided into stepwise reactions : (i) decompositions of the reactants into their component elements, for which the enthalpy changes are proportional to the negative of the enthalpies of formation of the reactants, −ΔHf°(reactants), followed by (ii) re-combinations of the elements (obtained in step 1) to...
40.4K
Standard Entropy Change for a Reaction
24.0K
Entropy is a state function, so the standard entropy change for a chemical reaction (ΔS°rxn) can be calculated from the difference in standard entropy between the products and the reactants.
24.0K
Reaction Mechanisms
30.5K
Chemical reactions often occur in a stepwise fashion, involving two or more distinct reactions taking place in a sequence. A balanced equation indicates the reacting species and the product species, but it reveals no details about how the reaction occurs at the molecular level. The reaction mechanism (or reaction path) provides details regarding the precise, step-by-step process by which a reaction occurs.
For instance, the decomposition of ozone appears to follow a mechanism with two steps:
For instance, the decomposition of ozone appears to follow a mechanism with two steps:
30.5K
Determining Order of Reaction
61.8K
Rate laws describe the relationship between the rate of a chemical reaction and the concentration of its reactants. In a rate law, the rate constant k and the reaction orders are determined experimentally by observing how the rate of reaction changes as the concentrations of the reactants are changed. A common experimental approach to the determination of rate laws is the method of initial rates. This method involves measuring reaction rates for multiple experimental trials carried out using...
61.8K

