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Intercalation of organic molecules into the van der Waals gaps of layered materials allows for the preparation of organic/inorganic superlattices for varying promising applications. Herein, the preparation of a series of dye molecule/MoO3 organic/inorganic superlattice nanoparticles by aqueous intercalation of several dye molecules into layered MoO3 for fluorescence imaging‐guided catalytic therapy...
Multinary layered 2D nanomaterials can exhibit distinct physicochemical properties and innovative applications as compared to binary 2D nanomaterials due to their unique crystal structures. However, it still remains a challenge for the high‐yield preparation of high‐quality multinary 2D nanosheets. Here, the high‐yield and large‐scale production of two quaternary metal thiophosphate nanosheets are...
In article number 2007486, Liang Cheng, Chaoliang Tan, and co‐workers report the activation of the near infrared absorption of layered metal oxide nanomaterials via a simple lithium treatment‐induced structural engineering, making them promising as robust biodegradable nanoagents for photothermal cancer therapy in the second near infrared window.
Layered metal oxides including MoO3 and WO3 have been widely explored for biological applications owing to their excellent biocompatibility, low toxicity, and easy preparation. However, they normally exhibit weak or negligible near‐infrared (NIR) absorption and thus are inefficient for photo‐induced biomedical applications. Herein, the structural engineering of layered MoO3 and WO3 nanostructures...
Transition metal dichalcogenide (TMD) nanomaterials, specially MoS2, are proven to be appealing nanoagents for photothermal cancer therapies. However, the impact of the crystal phase of TMDs on their performance in photoacoustic imaging (PAI) and photothermal therapy (PTT) remains unclear. Herein, the preparation of ultrasmall single‐layer MoS2 nanodots with different phases (1T and 2H phase) is reported...
2D materials (TDMs) have been explored for photonic theranostics. To achieve deep‐tissue penetration, near‐infrared (NIR) light is essential for photoacoustic (PA) theranostics. However, because the absorption profiles of existing TDMs are generally featureless with no obvious NIR absorption peaks, their PA signals and therapeutic efficacies are limited. This paper herein reports the synthesis and...
The novel application of two‐dimensional (2D) single‐layer ternary chalcogenide nanosheets as “capture‐release” fluorescence‐based biomolecular nanosensors is demonstrated. Fluorescently labeled biomolecular probe is first captured by the ultrathin Ta2NiS5 nanosheets and then released upon adding analyte containing a target biomolecule due to the higher probe‐target affinity. Here, the authors use...
A novel 3D cobalt sulfide (CoS) nanoparticle‐decorated nitrogen and sulfur co‐doped reduced graphene oxide aerogel (NSGA), referred to as CoS/NSGA, is prepared via three sequential processes, i.e., freeze‐drying, annealing, and sulfidization. The obtained CoS/NSGA exhibits excellent electrocatalytic performance in the alkaline solution.
A facile in situ synthetic method is developed to synthesize metal sulfide nanoparticles based on 2D M‐TCPP (M = Cu, Cd, or Co, TCPP = tetrakis(4‐carboxyphenyl)porphyrin)) metal‐organic framework nanosheets. The obtained CuS/Cu‐TCPP composite nanosheet is used as the active material in photoelectrochemical cells, showing notably increased photocurrent due to the improved exciton separation and charge...
The high‐yield and scalable production of single‐layer ternary transition metal dichalcogenide nanosheets with ≈66% of metallic 1T phase, including MoS2xSe2(1–x) and MoxW1–xS2 is achieved via electrochemical Li‐intercalation and the exfoliation method. Thin film MoS2xSe2(1‐x) nanosheets drop‐cast on a fluorine‐doped tin oxide substrate are used as an efficient electrocatalyst on the counter electrode...
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