Coordination of Functional Oligonucleotides Yields a Versatile Nanocomposite Microneedle Patch to Facilitate Local Wound Microenvironment Remodeling via Systemic Hyperglycemia Regulation

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 28, 2025

Abstract Hyperglycemia exacerbates bacterial infections, disrupts angiogenesis, and perpetuates chronic inflammation in the wound. Therefore, effective management of diabetic wounds necessitates a synergistic approach that integrates local wound microenvironment remodeling with systemic hyperglycemia regulation. Herein, an unprecedented hierarchical cobalt pyrophosphate/DNA (Co 2 PPi/DNA) nanocomposite is reported for this purpose. Unlike stereotypical assembly either enzymatically polymerized ultralong nucleic acids Mg PPi nanosheets at low ratios or commercial homo‐oligonucleotides devoid biofunctionalities presence metal ions, study represents first demonstration on coordination‐driven high‐efficiency co‐assembly biofunctional hetero‐oligonucleotides non‐Mg nanosheets, specifically glucagon receptor (GCGR) aptamer Co nanosheets. To improve bioavailability nanocomposites, dissolvable microneedle patch applied their delivery. Thereafter, nanocomposites dissociate sustained release 2+ ions GCGR aptamer, from which eliminate colonized bacteria promote angiogenesis through stabilizing HIF‐1α, meanwhile, after circulating to liver reduces blood glucose levels by binding hepatocyte GCGR. Importantly, hypoglycemic effect promotes antibacterial pro‐angiogenic efficacy alleviates inflammatory responses. This work highlights significant advancements coordination into versatile architecture remodel pathological facilitated factor

Язык: Английский

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CeO₂‐Accelerated Surface Reconstruction of CoSe₂ Nanoneedle Forms Active CeO₂@CoOOH Interface to Boost Oxygen Evolution Reaction for Water Splitting

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 10, 2024

Abstract Interface engineering is an efficient strategy to create high‐performance electrocatalysts for water splitting. In the present work, CeO 2 @CoSe nanoneedle on carbon cloth (CeO /CC) demonstrates high efficiency oxygen evolution reaction (OER) and with abundant O vacancies facilitates adsorption of OH − boosts reconstruction CoSe into CoOOH at lower potentials. The in situ generated active @CoOOH heterointerface upshifts d‐band center Co site, thereby decreasing free energy rate‐determining step (RDS) ( * OOH) during OER process. It delivers a low overpotential 245 mV 10 mA cm −2 . /CC also found be hydrogen (HER, 138 ), profiting from ‐facilitated H dissociation overall splitting achieved over bifunctional electrode electrolysis voltage 1.54 V This work offers valuable insights ‐assisted surface as well provides catalysts through interface engineering.

Язык: Английский

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Thiamine Pyrophosphate-Enhanced NiFe Layered Double Hydroxide for Robust and Durable Seawater Oxidation Electrocatalysis

ACS Applied Nano Materials, Год журнала: 2025, Номер 8(3), С. 1332 - 1337

Опубликована: Янв. 15, 2025

Seawater electrolysis has garnered considerable interest as an environmentally sustainable method for hydrogen production. However, the abundance of chloride ions in seawater poses a challenge to electrocatalyst stability, underscoring need catalysts with exceptional durability and efficiency facilitate effective oxidation. In this study, thiamine pyrophosphate (TPP) was intercalated into NiFe layered double hydroxide on nickel foam (NF/NiFe LDH), creating advanced oxidation LDH@TPP) that effectively resists chloride-induced corrosion. Remarkably, TPP-intercalated catalyst demonstrates superior kinetics selectivity oxygen evolution reaction, reaching current density 1 A cm–2 overpotential low 385 mV, while sustaining stable performance over 500 h.

Язык: Английский

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Recent advances in functionalizing ZIFs and their derived carbon materials towards electrocatalytic water splitting

Nano Energy, Год журнала: 2025, Номер unknown, С. 110727 - 110727

Опубликована: Янв. 1, 2025

Язык: Английский

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Hollow Multishelled High Entropy Oxide with Inert Aluminum Stabilizer for Boosted Electrochemical Lithium Storage

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 16, 2025

Abstract High entropy oxides (HEOs) have gained increasing attention as lithium‐ion battery anodes, owing to their multi‐principal synergistic effect and structural stability. However, the conversion type HEOs also suffer from low intrinsic conductivity, volume expansion, slow kinetics traditional metal oxide. Herein, a (FeCoNiCrMn) 2 O 3 HEO with hollow multishelled structure Al‐doping (Al‐HEO‐HoMS) is successfully prepared by thermal diffusion‐assisted template method. The effectively accommodates changes mitigates strains, resulting in excellent electrochemical Most importantly, inserted Al dopant Al‐HEO‐HoMS serves pegging points, securely fastening other metallic elements Al─O bonds maintain stability of anodes during repeated lithiation/delithiation. Additionally, abundant oxygen vacancies optimized electronic brought doping been validated accelerate lithiation kinetics. Consequently, anode exhibits high reversible capacity 1540 mAh g −1 after 500 cycles at 1 A . combination inert regulation expected alleviate expansion problem, offering universal strategy for designing advanced batteries.

Язык: Английский

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Uncovering the Structure Evolution of ZnCo Heptaclusters for Electrochemical Behavior Transformation via the Total Reduction Strategy

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 25, 2025

Abstract In the realm of energy conversion and storage devices, transition metal porous oxide composites have been subject extensive research interest. Supercapacitors electrocatalysis, as two important modalities, exhibit a competitive yet balanced relationship, much like state equilibrium. this work, comprehensive reduction approach is employed during pyrolysis anionic/cationic doped molecular clusters, specifically [Zn 7 L 6 ( μ 3 ‐OCH ) ]·[CoCl 4 ] (where = 2‐methoxy‐6‐((methylimino)‐methyl)phenolate, abbreviated Zn Co 1 ). Notably, within an inert atmosphere, significant quantity diverse range reducing gases are generated throughout entire temperature spectrum , monitored by thermogravimetry‐mass spectrometry (TG‐MS). It observed that production these led to in valence oxides, thereby inducing shift electrochemical behavior from oxygen evolution supercapacitive performance at different temperatures. The ‐350 sample demonstrated reaction (OER) performance, with overpotential 168 mV current density 10 mA·cm −2 . Conversely, ‐700 exhibited excellent capacitance attaining 1406 F·g −1 A·g findings offer novel synthesis clusters electrical capabilities via total strategy.

Язык: Английский

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NiFe LDH Hollow Nanocages Confined Ru Single Atoms for Remarkable Oxygen Evolution Reaction

Small, Год журнала: 2025, Номер unknown

Опубликована: Март 27, 2025

Abstract Electrocatalysts with a hollow nanocage structure and single atoms (SAs) incorporated into layered double hydroxide (LDH) are highly significant for enhancing the efficiency of electrochemical water splitting. In this study, efficient robust electrocatalyst oxygen evolution reaction (OER) is successfully fabricated by confining Ru SAs within made NiFe LDH. An etching co‐precipitation method used making LDH nanocages integrating to produce Ru‐SAC/NiFe The architecture increases surface area available interaction enhances interface between catalyst electrolyte. synergistic electronic contact led exceptional OER performance low overpotential 196 mV at 10 mA cm ‒2 Tafel slope 40 dec⁻ 1 . Additionally, revealed long‐term stability, 120 h Density functional theory (DFT) calculations show that increased activity because they interacted more strongly intermediates caused positive changes in Gibbs free energy. goal research develop novel approach designing fabricating advanced single‐atomic materials intended use renewable energy applications.

Язык: Английский

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Highly selective electrochemical sensing of hydroquinone and catechol using Co nanoparticles anchored on N-doped carbon nanotube hollow sphere

Analytica Chimica Acta, Год журнала: 2025, Номер unknown, С. 344074 - 344074

Опубликована: Апрель 1, 2025

Язык: Английский

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Activating and stabilizing lattice oxygen by synergetic defect engineering and surface reconstruction into CeOx/CoP for electrocatalytic oxygen evolution

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 163282 - 163282

Опубликована: Апрель 1, 2025

Язык: Английский

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MOF‐Based Electrocatalysts for Water Electrolysis, Energy Storage, and Sensing: Progress and Insights

The Chemical Record, Год журнала: 2025, Номер unknown

Опубликована: Апрель 24, 2025

Abstract Metal‐organic frameworks (MOFs) and their derivatives have shown broad application prospects in fields such as water electrolysis, electrochemical energy storage, sensing due to high specific surface area, tunable structures, abundant active sites. This article provides a comprehensive overview of our research group′s recent advancements developing MOF‐based electrocatalysts for Oxygen Evolution Reaction (OER) Urea Oxidation (UOR) at anodes, well Hydrogen (HER) cathodes during electrolysis. Furthermore, we integrated these catalysts into practical applications, including metal‐air batteries, lithium‐sulfur non‐enzymatic glucose sensors. To further demonstrate the innovative contributions work, systematically compare it with advanced work by other groups. Based on findings performance benchmarking analyses, identify critical challenges that must be addressed advance MOFs‐based toward next‐generation conversion sensing.

Язык: Английский

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