The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Intervertebral disc degeneration (IVDD) is a significant contributor to low back pain, characterized by excessive reactive oxygen species generation and inflammation‐induced pyroptosis. Unfortunately, there are currently no specific molecules or materials available to effectively delay IVDD. This study develops a multifunctional full name of PG@Cu nanoparticle network (PG@Cu). A designed pentapeptide,...
Intervertebral Disc Degeneration
In article number 2308167, Pooyan Makvandi, Yunlong Zhou, Aimin Wu, and co‐workers prepared a multifunctional metal polyphenol nanoparticle that exhibited the ability to escape lysosomal capture and effectively targeted mitochondria to scavenge excess reactive oxygen species. The results of in vitro and in vivo experiments showed that the nanoparticles retarded disc...
The Sabatier principle defines the essential criteria for an ideal catalyst in heterogeneous catalysis, while reaching the Sabatier optimum is still challenging in catalyst design. Herein, an elegant strategy is described to reach the Sabatier optimum of Ni electrocatalyst in CO2 reduction reaction (CO2RR) by atomically Zn doping. The incorporation of 3% Zn single atom into Ni lattice leads to the...
Peptide assemblies are promising nanomaterials, with their properties and technological applications being highly hinged on their supramolecular architectures. Here, how changing the chirality of the terminal charged residues of an amphiphilic hexapeptide sequence Ac‐I4K2‐NH2 gives rise to distinct nanostructures and supramolecular handedness is reported. Microscopic imaging and neutron scattering...
Peptide Supramolecular Handedness
In article number 2304424, Hai Xu, Jun Yang, Jiqian Wang, and co‐workers report how changing the chirality of the terminal charged residues of an amphiphilic hexapeptide sequence Ac‐I4K2‐NH2 gives rise to distinct nanostructures and supramolecular handedness. The formation of wide nanotubes arises from the co‐assembly of right‐ and left‐handed β‐strands while thin,...
The use of poly(1,3‐dioxolane) (PDOL) electrolyte for lithium batteries has gained attention due to its high ionic conductivity, low cost, and potential for large‐scale applications. However, its compatibility with Li metal needs improvement to build a stable solid electrolyte interface (SEI) toward metallic Li anode for practical lithium batteries. To address this concern, this study utilized a simple...
Bimetallic layered double hydroxides (LDHs) are promising catalysts for anodic oxygen evolution reaction (OER) in alkaline media. Despite good stability, NiCo LDH displays an unsatisfactory OER activity relative to the most robust NiFe LDH and CoFe LDH. Herein, a novel NiCo LDH electrocatalyst modified with single‐atom silver grown on carbon cloth (AgSA‐NiCo LDH/CC) that exhibits exceptional OER activity...
Solid‐state lithium–sulfur batteries (SSLSBs) have attracted tremendous research interest due to their large theoretical energy density and high safety, which are highly important indicators for the development of next‐generation energy storage devices. Particularly, safety and “shuttle effect” issues originating from volatile and flammable liquid organic electrolytes can be fully mitigated by switching...
Lithium‐rich layered oxide (LRLO) materials have attracted significant attention due to their high specific capacity, low cost, and environmental friendliness. However, owing to its unique capacity activation mechanism, the release of lattice oxygen during the first charge process leads to a series of problems, such as severe voltage decay, poor cycle stability, and poor rate performance. Herein,...
Ammonia (NH3) is a promising hydrogen (H2) carrier for future carbon‐free energy systems, due to its high hydrogen content and easiness to be liquefied. Inexpensive and efficient catalysts for ammonia electro‐oxidation reaction (AOR) are desired in whole ammonia‐based energy systems. In this work, ultrasmall delafossite (CuFeO2) polyhedrons with exposed high‐index facets are prepared by a one‐step...
Atomically dispersed nitrogen‐coordinated 3d transition‐metal site on carbon support (M‐NC) are promising alternatives to Pt group metal‐based catalysts toward oxygen reduction reaction (ORR). However, despite the excellent activities of most of M‐NC catalysts, such as Fe‐NC, Co‐NC et al., their durability is far from satisfactory due to Fenton reaction. Herein, this work reports a novel Si‐doped...
The pursuit of single‐assembled molecular cage reactors for complex tandem reactions is a long‐standing target in biomimetic catalysis but still a grand challenge. Herein, nanozyme‐like organic cages are reported by engineering air‐stable radicals into the skeleton upon photoinduced electron transfer. The generation of radicals is accompanied by single‐crystal structural transformation and exhibits...
Exploiting active and stable non‐precious metal electrocatalysts for alkaline hydrogen evolution reaction (HER) at large current density plays a key role in realizing large‐scale industrial hydrogen generation. Herein, a self‐supported microporous Ni(OH)x/Ni3S2 heterostructure electrocatalyst on nickel foam (Ni(OH)x/Ni3S2/NF) that possesses super‐hydrophilic property through an electrochemical process...
Chemical communication via neurotransmitters is central to brain functions. Nevertheless, in vivo real‐time monitoring of neurotransmitters released in the brain, especially the electrochemically inactive molecules, remains a great challenge. In this work, a novel needle field‐effect transistor (FET) microsensor based on an acupuncture needle is proposed, which is demonstrated to be capable of real‐time...
Transition‐metal dyshomeostasis has been identified as a critical pathogenic factor for the aggregates of amyloid‐beta (Aβ) peptide, which is associated with the onset and progression of Alzheimer's disease (AD). Excessive transition‐metal ions, especially copper ion (Cu2+), catalyze the formation of reactive oxygen species (ROS), triggering neuroinflammation and neuronal cell apoptosis. Therefore,...
Hydrogels have gained intensive interest in biomedical and flexible electronics, and adhesion of hydrogels to substrates or devices is indispensable in these application scenarios. Although numerous hydrogel adhesion strategies have been developed, it is still challenging to achieve a hydrogel with robust adhesion interface through a universal yet simple method. Here, a strategy for establishing strong...
Electrochemical nitrogen reduction powered by renewable electricity is a promising strategy to produce ammonia. However, the lack of efficient yet cheap electrocatalysts remains the biggest challenge. Herein, hybrid Cu2O‐CeO2‐C nanorods are prepared on copper mesh through a metal‐organic framework template route. The Cu‐loaded Ce‐MOF is thermally converted to Cu2O‐CeO2 heterojunctions with interfacial...
The reduction of the overall electrolysis potential to produce hydrogen is a critical target for fabricating applicable hydrogen evolution cells. Sandwich‐structured Fe3O4/Au/CoFe‐LDH is synthesized via a spontaneous galvanic displacement reaction. A series of structural characterizations indicate the successful synthesis of sandwich‐structured Fe3O4/Au/CoFe‐LDH electrocatalyst. The trace amount of...
Stimuli‐responsive crystals capable of energy conversion have emerged as promising materials for smart sensors, actuators, wearable devices, and robotics. Here, a novel ferrocene‐based organic molecule crystal (Fc‐Cz) that possesses anisotropic piezoelectric, optical, and mechanical properties is reported. It is demonstrated that the new crystal Fc‐Cz can be used as an ultrasensitive piezoelectric...
Molybdenum phosphide (MoP) is regarded as one of the most promising alternatives to noble‐metal based electrocatalysts for efficient hydrogen evolution reaction (HER) due to its similar d‐band electronic structure to noble metals and tunable features associated with phase and composition. However, it still remains a great challenge to construct MoP electrocatalysts with abundant active sites that...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.