Dongling Jia

Live cell imaging is essential for obtaining spatial and temporal insights into dynamic molecular events within heterogeneous individual cells, in situ intracellular networks, and in vivo organisms. Molecular tracking in live cells is also a critical and general requirement for studying dynamic physiological processes in cell biology, cancer, developmental biology, and neuroscience. Alongside this context, this review provides a comprehensive overview of recent research progress in live‐cell imaging of RNAs, DNAs, proteins, and small‐molecule metabolites, as well as their applications in molecular diagnosis, immunodiagnosis, and biochemical diagnosis. A series of advanced live‐cell imaging techniques have been introduced and summarized, including high‐precision live‐cell imaging, high‐resolution imaging, low‐abundance imaging, multidimensional imaging, multipath imaging, rapid imaging, and computationally driven live‐cell imaging methods, all of which offer valuable insights for disease prevention, diagnosis, and treatment. This review article also addresses the current challenges, potential solutions, and future development prospects in this field.

A metallic BiNPs/g-C₃N₄nanosheet photocatalyst is fabricated by a facile ultrasound-assisted electrostatic self-assembly method, and presents high-efficiency tetracycline degradation performance.

The nanoporous microspheres of Co-Zn-S were synthesized by a solvothermal method. The as-obtained Co-Zn-S microspheres, as a non-noble metal catalyst, exhibited highly electrocatalytic activity for oxygen evolution reaction (OER) in alkaline electrolyte. It showed a low overpotential of only 320 mV to afford a current density of 10 mA cm⁻² and a Tafel slope of 80.43 mV dec⁻¹. Furthermore, the nanoporous microspheres of Co-Zn-S retained excellent electrocatalytic stability within a period of 36000 s. The catalyst also showed good catalytic performance toward the hydrolysis of ammonia borane to produce around 70 mL of H₂ within the time of 30 minutes at room temperature. The nanoporous microspheres of Co-Zn-S exhibits the potential applications for hydrogen/oxygen production by water splitting or ammonia borane hydrolysis.

A hierarchical nanofibrous tin‐oxide/silicon composite with tin oxide nanoparticles anchored on the silicon nanofiber surface is fabricated employing natural cellulose substance (ordinary filter paper) as structural template. Tin oxide gel is deposited uniformly onto the surface of the silicon nanofibers that prepared by magnesiothermic reduction of the silica replica of the filter paper, and thereafter, the as‐prepared tin‐oxide−gel/silicon nanocomposite is calcined in argon atmosphere to yield the tin‐oxide/silicon nanocomposite. The resulted tin‐oxide/silicon nanocomposite possesses a hierarchical network structure that inherited from the initial cellulose substance. When the nanocomposite is evaluated as an anode material in lithium‐ion batteries, it exhibits superior lithium storage properties compared with the pure silicon nanofiber and tin oxide powder matters. For such a nanocomposite with 58.8 wt% tin oxide content delivers a specific reversible capacity of 547.8 mAh g ⁻¹ after 150 discharge/charge cycles at 100 mA g ⁻¹ . The improved lithium storage performances are attributed to the unique three‐dimensional hierarchical porous network structure of the nanocomposite, high dispersed fine tin oxide nanoparticles on the silicon nanofiber surface, as well as the synergistic effects between the silicon nanofibers and the tin oxide nanoparticles on the lithium storage.