Bionic evaporators inspired by natural plants like bamboo and mushrooms have emerged as efficient generators through water capillary evaporation. However, primitive natural evaporators cannot currently meet growing demand, and their performance limitations remain largely unexplored, presenting a substantial challenge. Through extensive experimentation and detailed simulation analysis, this study presents a precisely engineered H-type bamboo steam generator.
View Article and Find Full Text PDFDrug-resistant bacterial infections pose a significant challenge in the field of bacterial disease treatment. Finding new antibacterial pathways and targets to combat drug-resistant bacteria is crucial. The bacterial quorum sensing (QS) system regulates the expression of bacterial virulence factors.
View Article and Find Full Text PDFIntegrating single atoms and clusters into one system represents a novel strategy for achieving the desired catalytic performance. In comparison to single-atom catalysts, catalysts combining single atoms and clusters harness the advantages of both, thus displaying greater potential. Nevertheless, constructing single-atom-cluster systems remains challenging, and the fundamental mechanism for enhancing catalytic activity remains elusive.
View Article and Find Full Text PDFBecause of their special features, NiFe-LDHs (nickel iron layered double hydroxides) are prospective OER (oxygen evolution reaction) catalysts that might be utilized to catalyse the electrolysis of water and produce hydrogen to address the energy crisis. In this work, the electronic structure and electrocatalytic performance of the NiFe-LDH were accurately regulated by optimizing the Ni sites, which was enabled by adjacent metal sites coordinated with the "polyoxometalate electron sponge". With extension of the modification time, the Ni 2p binding energy, the Ni/Ni ratio and the OER properties were gradually tuned, which indicated accurate regulation of active Ni sites by the "polyoxometalate electron sponge" on a temporal scale.
View Article and Find Full Text PDFJ Chromatogr B Analyt Technol Biomed Life Sci
August 2023
Antibody purification is an important aspect of quality and cost control in the production process of antibody drugs. In this study, modified E. coli was embedded into polymer microspheres (polyvinyl alcohol/alginate) for antibody separation and the IgG binding domain was displayed on the surface of E.
View Article and Find Full Text PDFJ Chromatogr B Analyt Technol Biomed Life Sci
March 2023
Natural products containing complex mixtures of potentially bioactive compounds are a major source of new drugs, however, conventional screening for active compounds is a time-consuming and inefficient process. Here, we reported that a facile and efficient protein affinity-ligand oriented-immobilization strategy based on the SpyTag/SpyCatcher(ST/SC) chemistry, was used for bioactive compound screening. Two ST-fused model proteins, that is, GFP (green fluorescent protein) and PqsA (a critical enzyme in the quorum sensing pathway of Pseudomonas aeruginosa), were used to verify the feasibility of this screening method.
View Article and Find Full Text PDFA novel PbO electrode was fabricated by adding graphene nanoplatelets (GNP) inter-layer into β-PbO active layer (called GNP-PbO) and utilized to degradation of antibiotic enoxacin (ENO). The GNP-PbO electrode had a much rougher surface than the typical PbO electrode, with smaller crystal size and lower charge-transfer resistance at the electrode/electrolyte interface. Notably, the GNP inter-layer increased the oxygen evolution potential of PbO electrode (2.
View Article and Find Full Text PDFThe development of high-performance, low-cost, and long-lasting electrocatalysts for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is urgently needed for effective electrochemical water splitting. In the present study, an engineering process was employed to prepare "Lewis base-hungry" amorphous-crystalline nickel borate-nickel sulfide (Ni(BO)-NiS) heterostructures, which exhibited unprecedentedly high electrocatalytic activity toward both OER and HER in alkaline media. The optimal Ni(BO)-NiS/nickel foam (Ni(BO)-NiS/NF) electrode displayed an ultralow overpotential of only -92 and +217 mV to reach the current density of 10 mA cm for HER and OER, respectively.
View Article and Find Full Text PDFNiFe layered double hydroxides (LDHs) have been denoted as benchmark non-noble-metal electrocatalysts for the oxygen evolution reaction (OER). However, for laminates of NiFe LDHs, the edge sites are active, but the basal plane is inert, leading to underutilization as catalysts for the OER. Herein, for the first time, light and electron-deficient Li ions are intercalated into the basal plane of NiFe LDHs.
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