Mechanically and Chemically Robust Lanmodulin-Functionalized Silk Sponges for Rare Earth Element Sequestration.

IF 5.4 2区 医学 Q2 MATERIALS SCIENCE, BIOMATERIALS
Logan D Morton, Ryan A Scheel, Jugal Kishore Sahoo, Julian B Gilbert, Joseph A Cotruvo, Yongqin Jiao, Dan M Park, David L Kaplan
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Abstract

The extraction of rare-earth elements (REEs) from low-grade sources like electronic waste (E-waste) could supplement current unsustainable mining practices. REEs are crucial for various industries, but supply struggles to meet growing demand. Herein, we present an environmentally friendly method for REE extraction using silk protein sponges functionalized with lanmodulin (LanM), a protein that selectively binds REEs. These sponges are relatively facile to fabricate and scale, while offering highly selective REE binding. The REEs can then be recovered via simple acid leaching, allowing sponge reuse for multiple cycles as well as specific desorption of different REEs by changing the pH of the desorption buffer. This method avoids harmful solvents used in traditional extraction and enables recycling of REEs from industrial and E-waste.

用于稀土元素隔离的具有机械和化学稳定性的lanmodul素功能化丝绸海绵。
从电子垃圾等低品位资源中提取稀土元素(ree)可以补充目前不可持续的采矿实践。稀土元素对各个行业都至关重要,但供应难以满足不断增长的需求。在此,我们提出了一种环保的提取稀土元素的方法,使用具有选择性结合稀土元素的蛋白lanmodulin (LanM)功能化的丝蛋白海绵。这些海绵相对容易制造和缩放,同时提供高选择性的稀土结合。然后,稀土元素可以通过简单的酸浸回收,允许海绵重复使用多次循环,以及通过改变解吸缓冲液的pH值来特定解吸不同的稀土元素。该方法避免了传统提取中使用的有害溶剂,并使从工业和电子废物中回收稀土成为可能。
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来源期刊
ACS Biomaterials Science & Engineering
ACS Biomaterials Science & Engineering Materials Science-Biomaterials
CiteScore
10.30
自引率
3.40%
发文量
413
期刊介绍: ACS Biomaterials Science & Engineering is the leading journal in the field of biomaterials, serving as an international forum for publishing cutting-edge research and innovative ideas on a broad range of topics: Applications and Health – implantable tissues and devices, prosthesis, health risks, toxicology Bio-interactions and Bio-compatibility – material-biology interactions, chemical/morphological/structural communication, mechanobiology, signaling and biological responses, immuno-engineering, calcification, coatings, corrosion and degradation of biomaterials and devices, biophysical regulation of cell functions Characterization, Synthesis, and Modification – new biomaterials, bioinspired and biomimetic approaches to biomaterials, exploiting structural hierarchy and architectural control, combinatorial strategies for biomaterials discovery, genetic biomaterials design, synthetic biology, new composite systems, bionics, polymer synthesis Controlled Release and Delivery Systems – biomaterial-based drug and gene delivery, bio-responsive delivery of regulatory molecules, pharmaceutical engineering Healthcare Advances – clinical translation, regulatory issues, patient safety, emerging trends Imaging and Diagnostics – imaging agents and probes, theranostics, biosensors, monitoring Manufacturing and Technology – 3D printing, inks, organ-on-a-chip, bioreactor/perfusion systems, microdevices, BioMEMS, optics and electronics interfaces with biomaterials, systems integration Modeling and Informatics Tools – scaling methods to guide biomaterial design, predictive algorithms for structure-function, biomechanics, integrating bioinformatics with biomaterials discovery, metabolomics in the context of biomaterials Tissue Engineering and Regenerative Medicine – basic and applied studies, cell therapies, scaffolds, vascularization, bioartificial organs, transplantation and functionality, cellular agriculture
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