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Related Concept Videos

Chemical Equations03:10

Chemical Equations

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Chemical equations represent the identities and relative quantities of substances involved in a chemical reaction. The substances undergoing reaction are called reactants, and their formulas are placed on the left side of the equation. The substances generated by the reaction are called products, and their formulas are placed on the right side of the equation. Plus signs (+) separate individual reactant and product formulas, and an arrow (→) separates the reactant and product (left and right)...
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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.
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A balanced chemical equation provides the information of chemical formulas of the reactants and products involved in the chemical change. A reaction’s stoichiometry helps predict how much of the reactant is needed to produce the desired amount of product, or in some cases, how much product will be formed from a specific amount of the reactant.
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Chemical bonding theories were pioneered by American chemist Gilbert N. Lewis. He developed a model called the Lewis model to explain the type and formation of different bonds. Chemical bonding is central to chemistry; it explains how atoms or ions bond together to form molecules. It explains why some bonds are strong and others are weak, or why one carbon bonds with two oxygens and not three; why water is H2O and not H4O. 
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Chemical substances interact in many different ways. Certain chemical reactions exhibit common patterns of reactivity. Due to the vast number of chemical reactions, it becomes necessary to classify them based on the observed patterns of interaction.
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Fragmenting Bulk Hydrogels and Processing into Granular Hydrogels for Biomedical Applications
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Catechol-Based Hydrogel for Chemical Information Processing.

Eunkyoung Kim1,2, Zhengchun Liu3, Yi Liu4,5

  • 1Institute for Biosystems and Biotechnology Research, University of Maryland, 5115 Plant Sciences Building, College Park, MD 20742, USA. ekim@umd.edu.

Biomimetics (Basel, Switzerland)
|May 21, 2019
PubMed
Summary
This summary is machine-generated.

Biomimetic catechol-chitosan films act as redox-capacitors, enabling electronic communication with biological systems. This technology converts chemical information into electrical signals for analysis and potential synthetic biology applications.

Keywords:
catecholchitosanelectrochemistryhydrogelinformation processingredox-capacitor

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Area of Science:

  • Biomaterials Science
  • Molecular Electronics
  • Synthetic Biology

Background:

  • Catechols are vital in biological adhesion and neurotransmission.
  • Mimicking catechols has led to advanced materials like polydopamine.
  • Catechol-modified chitosan films exhibit redox activity and molecular electronic properties.

Purpose of the Study:

  • To explore the redox-capacitor capabilities of catechol-chitosan films.
  • To bridge biological and electronic systems using redox properties.
  • To investigate an interactive redox-probing approach for chemical information analysis.

Main Methods:

  • Modification of chitosan films with biomimetic catechols.
  • Characterization of redox activity and electron transfer properties.
  • Development of an interactive redox-probing technique.

Main Results:

  • Catechol-chitosan films function as effective redox-capacitors, capable of accepting, storing, and donating electrons.
  • The films can convert redox-based chemical information into electrical signals.
  • Demonstrated potential for coupling with synthetic biology for enhanced chemical information processing.

Conclusions:

  • Biomimetic catechol-chitosan films offer a novel platform for interfacing electronics with biological systems.
  • This approach facilitates the analysis of chemical information through signal processing.
  • Potential to elucidate the role of catechols in biological redox signaling.