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Microbial fuel cells (MFCs) are of great potential for wastewater remediation and chemical energy recovery. Nevertheless, limited by inefficient electron transfer between microorganisms and electrode, the remediation capacity and output power density of MFCs are still far away from the demand of practical application. Herein, a pore‐matching strategy is reported to develop uniform electroactive biofilms...
Microbial Fuel Cells
In article number 2304754, Jianmeng Chen, Shihan Zhang, Jingkai Zhao, and co‐workers provide a pore‐matched strategy to develop an excellent bioanode to boost electron extraction in microbial fuel cells. Due to the suitable pore size range of the sponge‐like electrode matching with microbial cells, the microbial cells can be attached individually and wired with the abiotic substrate...
Chitin Nanocrystals
Chitin nanomaterials are extracted from crab shells to stabilize bicontinuous emulsions by intra‐phase jamming at ultra‐low concentrations. In article number 2300686, Long Bai, Orlando J. Rojas, and co‐workers show the merits of bio‐based nanoparticles in forming complex multiphase systems, offering a new pathway to achieve advanced hierarchical and multiscale materials.
Non‐equilibrium multiphase systems are formed by mixing two immiscible nanoparticle dispersions, leading to bicontinuous emulsions that template cryogels with interconnected, tortuous channels. Herein, a renewable, rod‐like biocolloid (chitin nanocrystals, ChNC) is used to kinetically arrest bicontinuous morphologies. Specifically, it is found that ChNC stabilizes intra‐phase jammed bicontinuous systems...
Multiscale Design
In article number 2200220, Milad Kamkar, Orlando J. Rojas, and co‐workers devise types of biphasic soft materials featuring unique morphologies, e.g., continuous, multilayer, interpenetrated, and tubular structures. This is achieved by interfacial co‐assembly of nanomaterials and surfactants. These soft materials allow for the fabrication of structurally tunable and stable ultra‐flyweight...
The rapid co‐assembly of graphene oxide (GO) nanosheets and a surfactant at the oil/water (O/W) interface is harnessed to develop a new class of soft materials comprising continuous, multilayer, interpenetrated, and tubular structures. The process uses a microfluidic approach that enables interfacial complexation of two‐phase systems, herein, termed as “liquid streaming” (LS). LS is demonstrated as...
The adoption of neural interfacing into neurological diagnosis is severely hampered by the complex, costly, and error‐prone manufacturing methods, requiring new fabrication processes and materials for flexible neural interfacing. Here a strategy for fabricating highly stretchable neural electrode arrays based on screen printing of liquid metal conductors onto polydimethylsiloxane substrates is presented...
The discovery and elucidation of genetic codes has profoundly changed not only biology but also many fields of science and engineering. The fundamental building blocks of life comprises of four simple deoxyribonucleotides and yet their combinations serve as the carrier of genetic information that encodes for proteins that can carry out many biological functions due to their unique functionalities...
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