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Related Concept Videos

Chirality02:25

Chirality

29.3K
Chirality is a term that describes the lack of mirror symmetry in an object. In other words, chiral objects cannot be superposed on their mirror images. For example, our feet are chiral, as the mirror image of the left foot, the right foot, cannot be superposed on the left foot.
Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...
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Chirality in Nature02:30

Chirality in Nature

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Chirality is the most intriguing yet essential facet of nature, governing life’s biochemical processes and precision. It can be observed from a snail shell pattern in a macroscopic world to an amino acid, the minutest building block of life. Most of the snails around the world have right-coiled shells because of the intrinsic chirality in their genes. All the amino acids present in the human body exist in an enantiomerically pure state, except for glycine - the sole achiral amino acid.
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Molecules with Multiple Chiral Centers02:25

Molecules with Multiple Chiral Centers

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Molecules that possess multiple chiral centers can afford a large number of stereoisomers. For instance, while some molecules like 2-butanol have one chiral center, defined as a tetrahedral carbon atom with four different substituents attached, several molecules like butane-2,3-diol have multiple chiral centers. A simple formula to predict the number of stereoisomers possible for a molecule with n chiral centers is 2n. However, there can be a lower number where some of the stereoisomers are...
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Chirality at Nitrogen, Phosphorus, and Sulfur02:30

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Chirality is most prevalent in carbon-based tetrahedral compounds, but this important facet of molecular symmetry extends to sp3-hybridized nitrogen, phosphorus and sulfur centers, including trivalent molecules with lone pairs. Here, the lone pair behaves as a functional group in addition to the other three substituents to form an analogous tetrahedral center that can be chiral.
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
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Inverse Hyperbolic Functions and Their Derivatives01:25

Inverse Hyperbolic Functions and Their Derivatives

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The shape of a suspension bridge cable hanging under its own weight is described by a catenary curve, which is modeled using the hyperbolic cosine function. This mathematical model accurately captures the balance between gravity and tension acting along the cable. When a particular vertical position on the cable is known, the corresponding horizontal position can be determined using the inverse hyperbolic cosine function, allowing for a detailed analysis of the cable's geometry.Inverse...
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Derivatives of Inverse Trigonometric Functions01:30

Derivatives of Inverse Trigonometric Functions

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A ship tracking an approaching aircraft relies on geometric measurements to find out the aircraft’s position relative to the observer. By measuring the slant distance to the aircraft and the angle of elevation, the horizontal and vertical components of the distance can be obtained using trigonometric relationships. This geometric approach provides a basis for analyzing how the observed angle changes as the aircraft moves closer to the ship.To examine the mathematical behavior of the angle...
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Related Experiment Video

Updated: Jan 26, 2026

A Micropatterning Assay for Measuring Cell Chirality
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Stimuli-Directed Helical Chirality Inversion and Bio-Applications.

Ziyu Lv1, Zhonghui Chen2, Kenan Shao3

  • 1State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China. lvziyu@whut.edu.cn.

Polymers
|April 13, 2019
PubMed
Summary
This summary is machine-generated.

Researchers are developing smart helical polymers with tunable chirality for advanced applications. These materials offer potential in drug delivery, sensing, and nanotechnology, paving the way for new chiral functional materials.

Keywords:
helical chiralityhelical polymerstimuli-responsivesupramolecular assembly

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Area of Science:

  • Polymer Chemistry
  • Materials Science
  • Supramolecular Chemistry

Background:

  • Helical structures are prevalent in nature and synthetic materials.
  • Advances in helical polymer synthesis and characterization are ongoing.
  • Controlling helical chirality in polymers is crucial for developing functional materials.

Purpose of the Study:

  • To review recent progress in designing helical polymeric systems with tunable chirality.
  • To discuss the application of these smart materials in various fields.
  • To highlight challenges and future opportunities in helical chirality research.

Main Methods:

  • This review summarizes recent advancements in the field.
  • It discusses the design of systems with tunable helical chirality.
  • Applications are explored based on existing literature.

Main Results:

  • High-performance systems with tunable helical chirality have been developed.
  • These systems respond to external stimuli.
  • Applications include drug delivery vesicles, sensors, molecular switches, and liquid crystals.

Conclusions:

  • Significant progress has been made in developing smart helical polymers.
  • These materials show great promise for applications in biology, medicine, and nanotechnology.
  • Further research is needed to overcome challenges and explore new opportunities.