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Related Concept Videos

Principles of Disease Surveillance01:26

Principles of Disease Surveillance

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Disease surveillance is the systematic collection, analysis, and interpretation of health data essential to the planning, implementation, and evaluation of public health practice. This process integrates data dissemination to entities responsible for preventing and controlling disease, injury, and disability. Surveillance systems provide crucial information for action, helping public health authorities make informed decisions to manage and prevent outbreaks, ensure public safety, optimize...
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Immune Surveillance by NK Cells and Phagocytes01:25

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Immune surveillance is an integral part of the innate immune system, involving the continuous monitoring of peripheral tissues to detect and respond to pathogens, infected cells, or cancerous cells. This surveillance is conducted primarily by natural killer (NK) cells and phagocytes, which employ distinct but complementary mechanisms to identify and eliminate threats.
Natural Killer Cells: The Fast Responders
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Standard Enthalpy of Formation02:37

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Enthalpy changes are typically tabulated for reactions in which both the reactants and products are at the same conditions. A standard state is a commonly accepted set of conditions used as a reference point for the determination of properties under other different conditions. For chemists, the IUPAC standard state refers to materials under a pressure of 1 bar and solutions at 1 M and does not specify a temperature. Many thermochemical tables list values with a standard state of 1 atm. Because...
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On comparing the reactivity of silver and lead, it is observed that the two ionic species, Ag+ (aq) and Pb2+ (aq), show a difference in their redox reactivity towards copper: the silver ion undergoes spontaneous reduction, while the lead ion does not. This relative redox activity can be easily quantified in electrochemical cells by a property called cell potential. This property is commonly known as cell voltage in electrochemistry, and it is a measure of the energy which accompanies the charge...
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Measurement: Standard Units03:38

Measurement: Standard Units

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Every measurement provides three kinds of information: the size or magnitude of the measurement (a number), a standard of comparison for the measurement (a unit), and an indication of the uncertainty of the measurement. While the number and unit are explicitly represented when a quantity is written, the uncertainty is an aspect of the errors in the measurement results.
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Calculating Standard Free Energy Changes02:49

Calculating Standard Free Energy Changes

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The free energy change for a reaction that occurs under the standard conditions of 1 bar pressure and at 298 K is called the standard free energy change. Since free energy is a state function, its value depends only on the conditions of the initial and final states of the system. A convenient and common approach to the calculation of free energy changes for physical and chemical reactions is by use of widely available compilations of standard state thermodynamic data. One method involves the...
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Related Experiment Video

Updated: Jan 22, 2026

Standard Operating Procedure for Lyssavirus Surveillance of the Bat Population in Taiwan
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Serological Profiling for Malaria Surveillance Using a Standard ELISA Protocol.

Linda M Murungi1, Rinter K Kimathi2, James Tuju2,3

  • 1KEMRI Wellcome Trust Research Programme, Centre for Geographic Medicine Research-Coast, Kilifi, Kenya. LMurungi@kemri-wellcome.org.

Methods in Molecular Biology (Clifton, N.J.)
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PubMed
Summary

This study details a standardized enzyme-linked immunosorbent assay (ELISA) protocol for quantifying malaria antibodies in serum. This reliable method uses antigen-coated surfaces and enzyme-conjugated antibodies for accurate detection.

Keywords:
AntibodiesAntigensELISAOptical densitySerum

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Area of Science:

  • Immunology
  • Biochemistry
  • Parasitology

Background:

  • Enzyme-linked immunosorbent assay (ELISA) is a common technique for quantifying proteins and antibodies.
  • Accurate measurement of antibodies against malaria is crucial for disease diagnosis and vaccine development.

Purpose of the Study:

  • To provide a detailed, standardized protocol for quantifying antibodies against malaria antigens using ELISA.
  • To establish a reliable and cost-effective method for malaria antibody detection in biological samples.

Main Methods:

  • Immobilization of capture antigen onto a polystyrene surface.
  • Detection of captured antibodies using an enzyme-conjugated secondary antibody.
  • Quantification via colorimetric substrate addition and absorbance measurement.

Main Results:

  • The developed protocol enables accurate quantification of antibodies against malaria antigens.
  • The method is shown to be reliable and cost-effective for serum antibody analysis.

Conclusions:

  • The standardized ELISA protocol offers a robust approach for malaria antibody quantification.
  • This method can be widely applied in research and diagnostic settings for malaria surveillance.