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Related Concept Videos

Classifying Matter by Composition03:35

Classifying Matter by Composition

Matter: Pure Substances and Mixtures
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures. 
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated. 
A mixture is composed of two or more types of...
Sample Preparation for Analysis: Advanced Techniques01:08

Sample Preparation for Analysis: Advanced Techniques

Accurate analysis of complex samples often requires advanced preparation techniques to achieve reliable and reproducible results. Samples containing inorganic or organic materials can be challenging to dissolve or decompose effectively. Standard sample preparation methods include acid digestion, fusion, dry ashing, and wet digestion.
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
Chemical Reactions01:19

Chemical Reactions

A chemical reaction is a process by which the bonds in the atoms of substances are rearranged to generate new substances. Matter cannot be created or destroyed in a chemical reaction—the same type and number of atoms that make up the reactants are still present in the products. Merely, the rearrangement of chemical bonds produces new compounds.
Chemical Reactions Rearrange Atoms into New Substances
A chemical reaction takes starting materials—the reactants—and changes them into different...
Extraction: Advanced Methods00:56

Extraction: Advanced Methods

Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is formed in...
Precipitation and Co-precipitation01:17

Precipitation and Co-precipitation

Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...
Overview Of Cell Separation And Isolation01:20

Overview Of Cell Separation And Isolation

Cell separation was first achieved in 1964 by S. H. Seal, who separated large tumor cells from the smaller blood cells using filtration. Two years later, Pohl and Hawk performed experiments on how cells respond differently to a nonuniform electric field based on the cell type. Such observations were the inception of cell separation methods, which allow isolating a single cell type from a heterogeneous sample.

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Related Experiment Video

Updated: May 11, 2026

Combined Size and Density Fractionation of Soils for Investigations of Organo-Mineral Interactions
08:38

Combined Size and Density Fractionation of Soils for Investigations of Organo-Mineral Interactions

Published on: February 15, 2019

Natural product and material chemistries--separated forever?

Horst Kunz1, Klaus Müllen

  • 1Institut für Organische Chemie, Johannes Gutenberg-Universitaet, Duesbergweg 10-14, 55128 Mainz, Germany. hokunz@uni-mainz.de

Journal of the American Chemical Society
|May 31, 2013
PubMed
Summary

Natural product and material chemistry research are increasingly isolated due to specialization. Understanding molecular design

Area of Science:

  • Chemistry, encompassing natural product and material science.

Background:

  • Chemistry is a complex discipline with diverse sub-disciplines.
  • Specialization leads to isolation, limiting cross-talk between fields.
  • Natural product and material chemistry exemplify this growing separation.

Purpose of the Study:

  • To highlight the fundamental relationship between molecular design and properties.
  • To encourage chemists to bridge the gap between natural product and material chemistry.
  • To promote intradisciplinary collaboration for addressing complex chemical challenges.

Main Methods:

  • Analysis of the fundamental principles linking molecular structure to material properties.
  • Review of existing research to identify areas of separation and potential synergy.
  • Conceptual framework development for fostering interdisciplinary connections.

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Transient Expression in Nicotiana Benthamiana Leaves for Triterpene Production at a Preparative Scale
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Transient Expression in Nicotiana Benthamiana Leaves for Triterpene Production at a Preparative Scale

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Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
09:38

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures

Published on: January 7, 2019

Related Experiment Videos

Last Updated: May 11, 2026

Combined Size and Density Fractionation of Soils for Investigations of Organo-Mineral Interactions
08:38

Combined Size and Density Fractionation of Soils for Investigations of Organo-Mineral Interactions

Published on: February 15, 2019

Transient Expression in Nicotiana Benthamiana Leaves for Triterpene Production at a Preparative Scale
08:56

Transient Expression in Nicotiana Benthamiana Leaves for Triterpene Production at a Preparative Scale

Published on: August 16, 2018

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
09:38

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures

Published on: January 7, 2019

Main Results:

  • The core principles of molecular design and property relationships are common to both fields.
  • Identifying these shared fundamentals can overcome disciplinary isolation.
  • Collaboration is key to leveraging combined expertise.

Conclusions:

  • Bridging natural product and material chemistry is achievable by focusing on molecular design principles.
  • Intradisciplinary collaboration offers a powerful strategy for advancing chemical research.
  • Collective efforts are essential for tackling multifaceted challenges in chemistry.