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Related Concept Videos

Solvents01:12

Solvents

A solvent is a substance, most often a liquid, that can dissolve other substances. Here, the substance being dissolved is called a solute. When a solvent and a solute combine, they form a solution - a homogenous mixture of both the solvent and the solute. Water is a universal biological solvent. Its polar structure allows it to dissolve many other polar compounds. The ability of water to dissolve is governed by a balance between water molecules binding to each other and binding to the solute.
A...
Solubility03:00

Solubility

Solution, Solubility, and Solubility Equilibrium
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules, atoms, and/or ions)...
Solenoids01:17

Solenoids

A solenoid is a conducting wire coated with an insulating material, wound tightly in the form of a helical coil. The magnetic field for a solenoid is the vector sum of the magnetic field due to its individual turns. For an ideal solenoid, the magnetic field inside is almost uniform and parallel to the solenoid axis, while the magnetic field outside the solenoid is nearly zero.
Each turn in a solenoid can be approximated as a circular current carrying coil that generates a dipole moment. The...
Solubility of Ionic Compounds02:55

Solubility of Ionic Compounds

Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water.
Solubility Equilibria: Overview01:09

Solubility Equilibria: Overview

When a substance such as sodium chloride is added to water, it dissolves, forming an aqueous solution. The extent of dissolution is called solubility. The process of dissolution can exist in equilibrium, just like other chemical processes. Solubility equilibria are also called precipitation equilibria because the process of solubility can be reversible. The reverse of the solubility process is called precipitation.
Solubility is important in biological and environmental processes. A notable...
Solubility Equilibria03:07

Solubility Equilibria

Solubility equilibria are established when the dissolution and precipitation of a solute species occur at equal rates. These equilibria underlie many natural and technological processes, ranging from tooth decay to water purification. An understanding of the factors affecting compound solubility is, therefore, essential to the effective management of these processes. This section applies previously introduced equilibrium concepts and tools to systems involving dissolution and precipitation.
The...

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Microbial Communities in Nature and Laboratory - Interview
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Microbial Communities in Nature and Laboratory - Interview

Published on: May 28, 2007

Interview with Solomon Nwaka.

Solomon Nwaka

    Future Medicinal Chemistry
    |September 2, 2011
    PubMed
    Summary
    This summary is machine-generated.

    Dr. Solomon Nwaka champions neglected disease research, advocating for developing nations to lead efforts against diseases disproportionately affecting them. His work supports global innovation networks for drug and diagnostic development.

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    Interview: Bioreactors and Surfaced-Modified 3D-Scaffolds for Stem Cell Research

    Published on: May 21, 2008

    Area of Science:

    • Global Health
    • Medicinal Chemistry
    • Drug Discovery

    Background:

    • Solomon Nwaka's career is driven by firsthand experience with the impact of neglected diseases in Nigeria.
    • His research spans academia, industry, and international organizations like the Medicines for Malaria Venture.
    • He currently leads initiatives at the World Health Organization (WHO) to foster neglected disease research.

    Discussion:

    • The African Network for Drugs and Diagnostics Innovation (ANRDI) is a key initiative supported by Nwaka, now under the UN Economic Commission for Africa.
    • Nwaka emphasizes the importance of developing countries taking a leading role in addressing diseases that impact them most.
    • His perspective highlights the need for tailored research and development strategies for neglected tropical diseases.

    Key Insights:

    • Personal experience with neglected diseases fuels a passion for targeted research and intervention.
    • International collaboration and dedicated networks are crucial for advancing drug and diagnostics innovation.
    • Empowering developing nations is essential for effective global health strategies against neglected diseases.

    Outlook:

    • Continued focus on initiating schemes to support neglected disease research in developing countries.
    • Strengthening organizations like ANRDI to drive local innovation and solutions.
    • Promoting a paradigm shift where affected regions lead the charge in tackling their most pressing health challenges.