Download Adhesive Interactions of Mussel Foot Proteins by Jing Yu PDF

By Jing Yu

Water and moisture undermine robust adhesion to polar surfaces. Marine mussels, even if, in achieving sturdy underwater adhesion utilizing a set of proteins which are abnormal in having excessive degrees of three, 4-dihydroxyphenylalanine (Dopa). Mussel adhesion has encouraged quite a few stories on constructing the following new release of rainy adhesives. This thesis offers contemporary development in knowing the fundamental floor and intermolecular interactions hired through mussels to accomplish robust and sturdy rainy adhesion. the skin forces equipment (SFA) and diverse different suggestions have been utilized to degree the interactions among mussel foot protein-3 fast (Mfp-3 fast) and the version substrate, mica, in addition to the interactions among numerous mussel adhesive proteins. the consequences during this thesis exhibit that Dopa performs a vital position in mussel adhesion and that mussels delicately regulate the interfacial redox atmosphere to accomplish powerful and sturdy Dopa mediated adhesion. The interaction among Dopa and hydrophobic interactions can be obtrusive in mussel adhesion.

Show description

Read or Download Adhesive Interactions of Mussel Foot Proteins PDF

Similar family & general practice books

Essential Emergency Medicine: For the Healthcare Practitioner

Steven W. Salyer, PhD, PA-C and fellow Emergency drugs health practitioner Assistants current a brief, concise, and sensible advisor to often faced scientific emergencies. crucial Emergency medication is perfect for the busy PA and NP within the health center or on website and for committed EMTs at the entrance strains for fast-access details to emergency motion, analysis, remedy, and follow-up techniques.

Der Erstkontakt mit psychisch kranken Menschen

Das Buch ist eine Kurzinformation für Menschen, die sich beruflich mit psychisch beeinträchtigten Menschen auseinandersetzen müssen. Der Zugang soll dadurch erleichtert werden, daß nicht Krankheitseinheiten oder differential-diagnostische Erwägungen dargestellt werden, sondern die besonderen Verhaltensweisen von psychisch beeinträchtigten Menschen.

Bounding Biomedicine: Evidence and Rhetoric in the New Science of Alternative Medicine

Through the Nineteen Nineties, an exceptional variety of americans became to complementary and replacement medication (CAM), an umbrella time period encompassing chiropractic, strength therapeutic, natural drugs, homeopathy, meditation, naturopathy, and standard chinese language drugs. by way of 1997, approximately part the united states inhabitants was once looking CAM, spending at the very least $27 billion out of pocket.

Contact Force Models for Multibody Dynamics

This ebook analyzes numerous compliant touch strength versions in the context of multibody dynamics, whereas additionally revisiting the most matters linked to basic touch mechanics. particularly, it provides numerous touch strength versions, from linear to nonlinear, from simply elastic to dissipative, and describes their parameters.

Extra resources for Adhesive Interactions of Mussel Foot Proteins

Sample text

The greater repulsion at higher pH could reflect Mfp-3 cross-linking [23] and/or the tautomerization of peptidyl-Dopaquinone to α,β-dehydrodopa, which would have the effect of locking the peptide backbone into a planar double bond at every oxidized Dopa residue [21, 24]. Given its reversibility, tautomerization is the more plausible explanation. Compliant protein chains pulled out normal to the mica surface during separation would be stiffened during the pH-induced oxidation and tautomerization steps, and the stiffened chains would begin resisting compression earlier during the next approach.

Depending on various interactions involved and different natures of different proteins, some values are close to the equilibrium values, while others may be off by quite a bit. 3 Surface Forces Apparatus The main technique I have used in my research is the SFA. The SFA is a powerful instrument to measure forces between surfaces. It was first developed in the 1960s and then modified by Israelachvili et al. in the 1970s to measure the VDW forces in air down to a few nanometers [14]. Since then, the SFA technique has been continuously modified [15, 16].

The moderate adhesion of Mfp-3 to mica is probably due to hydrogen bonding between the bidentate OH groups of the catechol and the O atoms in the mica crystal. 29 nm [5]. As predicted by Bell theory and by analogy to the A-T pairs in DNA, the well-oriented bidentate hydrogen 28 3 Effects of Interfacial Redox in Mussel Adhesive Protein Films on Mica bonding (E = ~ −28kT) of Dopa to mica should have a binding lifetime (τ = τ0e− E/kT) that is 106 times as long as the monodentate form (E = ~ −14kT) [18].

Download PDF sample

Rated 4.39 of 5 – based on 33 votes