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Direct printing of functional inks onto flexible substrates allows for scalable fabrication of wearable electronics. However, existing ink formulations for inkjet printing require toxic solvents and additives, which make device fabrication more complex, limit substrate compatibility, and hinder device performance. Even water‐based carbon or metal nanoparticle inks require supplemental surfactants,...
Iron oxide nanoparticles are developed for various biomedical applications, however, there is limited understanding regarding their effects and toxicity on blood components. The particles traveling in circulation inevitably interact with blood cells and plasma proteins and may interfere with hemostasis. Specifically, this study focuses on the influence of superparamagnetic iron oxide nanoparticles...
Tubulin is an electrostatically negative protein that forms cylindrical polymers termed microtubules, which are crucial for a variety of intracellular roles. Exploiting the electrostatic behavior of tubulin and microtubules within functional microfluidic and optoelectronic devices is limited due to the lack of understanding of tubulin behavior as a function of solvent composition. This work displays...
Bacterial infections have become a major danger to public health because of the appearance of the antibiotic resistance. The synergistic combination of multiple therapies should be more effective compared with the respective one alone, but has been rarely demonstrated in combating bacterial infections till now. Herein, oxygen‐vacancy molybdenum trioxide nanodots (MoO3−x NDs) are proposed as an efficient...
Diamond‐like carbon (DLC) films are capable of achieving superlubricity at sliding interfaces by a rapid running‐in process. However, fundamental mechanisms governing the friction evolution during this running‐in processes remain elusive especially at the nanoscale, which hinders strategic tailoring of tribosystems for minimizing friction and wear. Here, it is revealed that the running‐in governing...
Semiconducting molecules have been employed to passivate traps extant in the perovskite film for enhancement of perovskite solar cells (PSCs) efficiency and stability. A molecular design strategy to passivate the defects both on the surface and interior of the CH3NH3PbI3 perovskite layer, using two phthalocyanine (Pc) molecules (NP‐SC6‐ZnPc and NP‐SC6‐TiOPc) is demonstrated. The presence of lone electron...
Due to the merits of high activity and rapid reaction kinetics, ultrafine nanoparticles loaded on conductive scaffolds are of great potential in energy‐related fields. Usually, the nucleation and uniform growth of these active nanoparticles in high density on scaffolds is governed by the local ion concentration gradient and nucleation sites at the interfaces. On account of this, a novel interface‐inverting...
The epigenetic dysregulation and hypoxia are two important factors that drive tumor malignancy, and N6‐methyladenosine (m6A) in mRNA is involved in the regulation of gene expression. Herein, a nanocatalyst OsSx‐PEG (PEG = poly(ethylene glycol)) nanoparticles (NPs) as O2 modulator is developed to improve tumor hypoxia. OsSx‐PEG NPs can significantly downregulate genes involved in hypoxia pathway. Interestingly,...
Light‐weight and flexible supercapacitors with outstanding electrochemical performances are strongly desired in portable and wearable electronics. Here, ultralight nitrogen‐doped carbon macrotube (N‐CMT) sponges with 3D interconnected macroporous structures are fabricated and used as substrate to grow nickel ferrite (NiFe2O4) nanoparticles by vapor diffusion–precipitation and in situ growth. This...
In article number 2004945, Regina K. Kottana and co‐workers study the influence of superparamagnetic iron oxide nanoparticles (SPIONs) coated with a biocompatible polymer, polyvinyl alcohol (PVA), on platelet function. The image presents a colored scanning electron microscograph featuring human platelets following their interaction with PVA‐SPIONs.
Ag nanoparticles (NPs) modified graphene nanoribbons (GNRs) are proposed to function as the high‐performance shared substrates for surface‐enhanced Raman and infrared absorption spectroscopy (SERS and SEIRAS). This is realized by modulating the localized plasmonic resonances of Ag NPs in visible region and GNRs in mid‐infrared region simultaneously, so as to selectively employ each resonance to acquire...
Despite the existence of numerous photocatalyst heterostructures, their separation efficiency and charge flow precision remain low due to the poor study on interfacial properties. The photocatalysts with confined defects can effectively control the photogenerated carrier migration, but the metastability of such defects considerably decreases the photocatalyst stability. Meanwhile, the introduction...
Polymeric graphitic carbon nitride (g‐C3N4) and various carbon materials have experienced a renaissance as viable alternates in photocatalysis due to their captivating metal‐free features, favorable photoelectric properties, and economic adaptabilities. Although numerous efforts have focused on the integration of both materials with optimized photocatalytic performance in recent years, the direct...
Engineering electrode materials for optoelectronic and energy storage applications requires a fundamental understanding of intercalation using spatially‐resolved techniques. However, spectroscopic methods can have limited spatial resolution and low intensity since the signal passes through electrolyte. Here, a device geometry is presented in which the electrolyte is laterally separated from the area...
The performances of catalysts are highly dependent on their crystallinities. It is a significant challenge to successively manipulate the crystallinities of noble metal nanocatalysts due to the strong metallic bonds, especially under ambient conditions. Herein, a post‐crystallization approach is developed for successive control of the crystallinity of Pd nanosheets via selective oxidation etching...
In article number 2004827, Min Fu, Ruitao Lv, Yu Lei, and Mauricio Terrones build ultra‐light, flexible and three‐dimensional freestanding electrodes for supercapacitors. Homogenous deposition of NiFe2O4 nanoparticles from vapor diffusion‐precipitation on N‐doped carbon sponges result in a composite material which enables rapid charge and ionic transport.
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