Mini-review: the role of redox in Dopa-mediated marine adhesion.

Mini-review: the role of redox in Dopa-mediated marine adhesion.
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DOI:
10.1080/08927014.2012.719023
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发表时间:
2012
期刊:
影响因子:
2.7
通讯作者:
Waite JH
Waite JH
中科院分区:
生物学3区
文献类型:
--
作者:
Nicklisch SC;Waite JH

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含有3,4 -二羟基苯胺(Dopa)的蛋白质是贻贝和其他可能的无根生物湿粘附的关键。然而,多巴介导的粘合粘合是一个很难遵循的行为,至少在贻贝中,粘合依赖于还原和氧化形式的多巴,分别进行粘合和内聚。鉴于多巴对自发氧化的脆弱性,在实际粘附中使用它的最大挑战是在时间和空间定义的方式下控制多巴的氧化还原。贻贝似乎在其基底附着斑块中实现了这种控制,并且可以使用氧化还原探针(如二苯基吡啶酰肼(DPPH)自由基)精确测量涉及氧化还原控制的因素。了解自然氧化还原控制的细节可以为粘合剂聚合物工程和防污策略提供重要的见解。
3, 4-Dihydroxyphenylanine (Dopa)-containing proteins are key to wet adhesion in mussels and possibly other sessile organisms also. However, Dopa-mediated adhesive bonding is a hard act to follow in that, at least in mussels, bonding depends on Dopa in both reduced and oxidized forms, for adhesion and cohesion, respectively. Given the vulnerability of Dopa to spontaneous oxidation, the most significant challenge to using it in practical adhesion is controlling Dopa redox in a temporally- and spatially defined manner. Mussels appear to achieve such control in their byssal attachment plaques, and factors involved in redox control can be measured with precision using redox probes such as the diphenylpicryl hydrazyl (DPPH) free radical. Understanding the specifics of natural redox control may provide fundamentally important insights for adhesive polymer engineering and antifouling strategies.
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