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Effect of Charge Re...
Effect of Charge Regulation and Ion-Dipole Interactions on the Selectivity of Protein-Nanoparticle Binding
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Barroso da Silva, Fernando Luis (author)
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- Boström, Mathias (author)
- KTH,Flerskalig materialmodellering
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- Persson, Clas (author)
- KTH,Flerskalig materialmodellering
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(creator_code:org_t)
- 2014-03-31
- 2014
- English.
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In: Langmuir. - : American Chemical Society (ACS). - 0743-7463 .- 1520-5827. ; 30:14, s. 4078-4083
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- We investigate the role of different mesoscopic interactions (Coulomb, charge regulation, and ion-dipole "surface patch" effects) on the binding of bovine serum albumin (BSA) and beta-lactoglobulin (BLG) to a cationic gold nanoparticle (TTMA+). The results demonstrate that the charge-regulation mechanism plays a vital role for selectivity of protein-nanoparticle complexation at low salt concentration. At slightly higher ionic strengths, charge-dipole effects are the dominating driving force. Thus, very small variations in salt concentration strongly influence the origin of complexation.
Keyword
- Bovine Beta-Lactoglobulin
- Complexation
- Salt
- Macromolecules
- Science
Publication and Content Type
- ref (subject category)
- art (subject category)
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