Stiffness‐Dependent In Vitro Uptake and Lysosomal Acidification of Colloidal Particles1. Issue 4 (5th December 2014)

• Record Type: Journal Article
• Authors: Hartmann, Raimo; Weidenbach, Marcel; Neubauer, Martin; Fery, Andreas; Parak, Wolfgang J.
• Is Part Of: Angewandte Chemie international edition. Volume 54:Issue 4(2015)
• Page Start: 1365
• Page End: 1368
• Publication Date: 2014-12-05
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201409693
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The physico‐chemical properties of colloidal particles determine their uptake into cells. For a series of microparticles only one parameter, the mechanical stiffness, was varied, whereas other parameters such as size, shape, and charge were kept constant. The uptake was monitored in situ by analyzing individual particle trajectories including the progress of endocytosis, derived from local pH measurements around each particle. Evidence is presented that soft particles with low stiffness are transported faster to lysosomes than stiffer ones.</p> </abstract>