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Ruddlesden–Popper (RP) metal halide perovskites are considered as promising optoelectronic materials due to their good environmental stability and desirable optoelectronic properties. However, the phase composition and ordering in the deposited film, with a fixed ratio of large organic spacer cation in the precursor solution, are hard to be further tailored for specific optoelectronic applications...
Doped 2,2′,7,7′‐tetrakis(N,N‐di‐p‐methoxyphenylamine)‐9,9′‐spirobifluorene (spiro‐MeOTAD), which acts as a hole‐transporting layer (HTL), endows perovskite solar cells (PSCs) with excellent performance. However, the intrinsically hygroscopic nature of lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) dopants also aggravates the moisture instability of PSCs. In this work, the origins of the moisture...
The performance of perovskite nanocrystals (NCs) in optoelectronics and photocatalysis is severely limited by the presence of large amounts of crystal boundaries in NCs film that greatly restricts energy transfer. Creating heterostructures based on perovskite NCs and 2D materials is a common approach to improve the energy transport at the perovskite/2D materials interface. Herein, methylamine lead...
Near‐infrared (NIR) emissive materials are highly attractive for fluorescence bio‐imaging application. In article number 1905050, Songnan Qu and co‐workers develop NIR absorbing/emissive carbon dots via microwave assisted exfoliation. More importantly, a unique thermally activated up‐conversion NIR emission is observed under 808 nm continuous‐wave laser excitation.
Upconversion near‐infrared (NIR) fluorescent carbon dots (CDs) are important for imaging applications. Herein, thermally activated upconversion photoluminescence (UCPL) in the NIR region, with an emission peak at 784 nm, which appears under 808 nm continuous‐wave laser excitation, are realized in the NIR absorbing/emissive CDs (NIR‐CDs). The NIR‐CDs are synthesized by microwave‐assisted exfoliation...
It is hard for current radionuclide therapy to render solid tumors desirable therapeutic efficacy owing to insufficient tumor‐targeted delivery of radionuclides and severe tumor hypoxia. In this study, a biocompatible hybrid protein nanoreactor composed of human serum albumin (HSA) and catalase (CAT) molecules is constructed via glutaraldehyde‐mediated crosslinking. The obtained HSA‐CAT nanoreactors...
Development of nanoagents with strong near‐infrared (NIR) absorbance and high photothermal conversion capacity is highly desired for efficient photoacoustic (PA) imaging and photothermal therapy of cancers. Herein, surfactant‐stripped micelles with photostable near‐infrared dye, β‐thiophene‐fused BF2‐azadipyrromethene (aza‐BDTP), are prepared in the presence of paclitaxel (PTX) with Pluronic F127...
Recently, the development of multifunctional theranostic nanoplatforms to realize tumor‐specific imaging and enhanced cancer therapy via responding or modulating the tumor microenvironment (TME) has attracted tremendous interests in the field of nanomedicine. Herein, tungsten disulfide (WS2) nanoflakes with their surface adsorbed with iron oxide nanoparticles (IONPs) via self‐assembly are coated with...
Although nanoparticle‐based drug delivery systems have been widely explored for tumor‐targeted delivery of radioisotope therapy (RIT), the hypoxia zones of tumors on one hand can hardly be reached by nanoparticles with relatively large sizes due to their limited intratumoral diffusion ability, on the other hand often exhibit hypoxia‐associated resistance to radiation‐induced cell damage. To improve...
Combining chemotherapy and radiotherapy (chemoradiotherapy) has been widely applied in many clinical practices, showing promises in enhancing therapeutic outcomes. Nontoxic nanocarriers that not only are able to deliver chemotherapeutics into tumors, but could also act as radiosensitizers to enhance radiotherapy would thus be of great interest in the development of chemoradiotherapies. To achieve...
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