Covalent organic frameworks

Covalent organic frameworks

Covalent organic frameworks are porous crystalline polymers that can integrate organic units into highly ordered structures.


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  • Molecular quantitative trait locus (molQTL) mapping associates genetic variation with molecular traits that can be measured as gene expression, splicing and chromatin accessibility. In this Primer, Aguet et al. discuss the study design and implementation of molQTL mapping in various applications, with a focus on technical developments for functional characterization.

    • François Aguet
    • Kaur Alasoo
    • Tuuli Lappalainen
  • Covalent organic frameworks (COFs) are a class of crystalline porous polymers consisting of highly ordered organic structures formed by polymerization. In this Primer, Tan et al. discuss the design principle, experimental methods, characterization and applications of COFs.

    • Ke Tian Tan
    • Samrat Ghosh
    • Donglin Jiang
  • Principal component analysis is a multivariate statistical method that reduces a large number of variables into fewer variables, called principal components. This Primer describes how the method can be used for data analysis, explaining the mathematical background, analytical workflows, how to interpret a biplot and variants of the method.

    • Michael Greenacre
    • Patrick J. F. Groenen
    • Elena Tuzhilina
  • Hydrogels are used to mimic cells’ local environment, enabling the study of cellular responses to biochemical and mechanical cues. Here, Blache et al. discuss the challenges of creating hydrogels for mechanobiology studies and how they can be used to analyse cell behaviour in the context of mechanobiological processes and harnessed to create regenerative therapies.

    • Ulrich Blache
    • Eden M. Ford
    • Eileen Gentleman
  • Tandem mass spectrometry is increasingly utilized for clinical applications in laboratory medicine. In this Primer, Thomas et al. discuss experimental considerations and quality management for implementing clinical tandem mass spectrometry in the clinic with an overview of some key applications.

    • Stefani N. Thomas
    • Deborah French
    • William A. Clarke