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Experimental method to distinguish between a solution and a suspension

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  • Xufeng Xu
  • Quy Ong
  • Ting Mao
  • Paulo J Silva
  • Seishi Shimizu
  • Luca Rebecchi
  • Ilka Kriegel
  • Francesco Stellacci


Publication details

JournalAdvanced materials interfaces
DateSubmitted - 16 Mar 2022
DateAccepted/In press - 9 May 2022
DateE-pub ahead of print (current) - 7 Jun 2022
Number of pages6
Early online date7/06/22
Original languageEnglish


A technique, which is called master curves in sedimentation equilibrium analytical ultracentrifugation, to address a key fundamental question for objects in nanoscale is designed: When a dispersion is formed, how can one determine whether it is a solution (Delta Gmix < 0) or a suspension (Delta Gmix > 0)? This study proves that bovine serum album and lysozyme form solutions while ferritin and apoferritin are present as suspensions.

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© 2022 The Authors.

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