Results 191 to 200 of about 70,343 (220)

Sea Urchin‐Inspired Immuno‐Instructive Ionic Flow Drives MSCs‐Macrophage Communication to Promote Bone Regeneration

open access: yesAdvanced Materials, EarlyView.
ABSTRACT Bone tissue regeneration is a complex physiological process dependent on the spatiotemporal coordination of immune cells and stem cells. Conventional research primarily elucidates the mechanism through which materials facilitate bone formation by initially modulating macrophages and subsequently encouraging the osteogenic differentiation of ...
Yang Lu   +11 more
wiley   +1 more source

Exploring the Potential of Zero‐Dimensional Carbon Nanomaterials in Photoluminescent, Electrochemiluminescent and Electrochemical Sensors

open access: yesAdvanced Materials Interfaces, EarlyView.
Zero‐dimensional carbon nanomaterials are presented as multifunctional platforms linking structure, property, and sensing performance. Surface engineering and heteroatom doping modulate electron‐transfer and luminescent behavior, enabling electrochemical, photoluminescent, and electrochemiluminescent detection. Fundamental design principles, analytical
Gustavo Martins   +8 more
wiley   +1 more source

Understanding Operando Water Management in Hydroxide‐Exchange‐Membrane Fuel Cells

open access: yesAdvanced Materials Interfaces, EarlyView.
Effective water management is vital for high‐performance hydroxide‐exchange‐membrane fuel cells. Using a custom water‐flux station, this study quantifies how membrane thickness, microporous layers, and operating conditions dictate internal water transport.
Catherine M. Weiss   +4 more
wiley   +1 more source

Electrochemically Engineered PEDOT:PSS/MXene Composite Electrode for the Label‐Free Procalcitonin Detection

open access: yesAdvanced Materials Interfaces, EarlyView.
Procalcitonin is a key biomarker for bacterial infections, but conventional detection methods are often time‐consuming. Here, we present an electrochemical sensor based on highly conductive Ti3C2Tx MXene combined with PEDOT:PSS, enabling direct antibody immobilization, while a bovine serum albumin coating provides antifouling protection.
Angelika Banaś   +6 more
wiley   +1 more source

Bioresorbable Mo–W Electrodes: Toward an Extended Operational Lifetime Through Controlled Alloying and Oxide Coating Engineering

open access: yesAdvanced Materials Interfaces, EarlyView.
Bioresorbable electrochemical sensors face instability in biofluids. Although alloys can mitigate rapid in vivo dissolution, Mo–W remains underexplored for sensing. This work engineers Mo–W films with a nanocrystalline oxide coating, improving stability and enabling reliable oxygen and pH sensing for up to 10 days, highlighting their potential for ...
C. Fernandes   +4 more
wiley   +1 more source

Nanozymes at the Bio‐Nano Interface: From Synthesis, Defect Engineering, Catalytic Behavior in Biological Microenvironments, and Biosafety Implications

open access: yesAdvanced Materials Interfaces, EarlyView.
Nanozymes (NZs) have emerged as versatile artificial enzymes with tunable catalytic properties driven by atomic coordination, defect engineering, and surface chemistry. This review presents a bio–nano interface framework linking synthesis strategies, structural design, and catalytic behavior within complex biological microenvironments.
Karen Guadalupe Quintero‐Garrido   +6 more
wiley   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

open access: yesAdvanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz   +5 more
wiley   +1 more source

On duality invariance in simple gauge theories including electromagnetic-type fields with sources

Il Nuovo Cimento A, 1979
Duality transformations of the type defined in electromagnetic theory are discussed and classified in terms of those having a direct relationship to an internal-symmetry structure of a given gauge theory and those that do not. It is argued that to build a satisfactory generalized electromagnetic theory with local duality invariance into a gauge theory,
W. M. Baker, W. R. Davis
openaire   +1 more source

Duality and integrability in superstring and gauge field theory

2023
Στην παρούσα διατριβή, εξερευνούμε ορισμένες πτυχές της θεωρίας υπερχορδών και της υπερσυμμετρικής θεωρίας πεδίου βαθμίδας, ανεξάρτητα καθώς και στο πλαίσιο της ολογραφικής δυϊκότητας. Το πρώτο μέρος της διατριβής είναι αφιερωμένο στην κλασική ολοκλήρωσιμότητα και, ειδικότερα, σε ορισμένες μεθόδους αναλυτικής μη-ολοκλήρωσιμότητας, οι οποίες ...
openaire   +1 more source

Chronogroup via Quantum Field Theory F: Algebraic-Topological Unification in Gauge Theory and Holographic Duality

 Abstract This paper proposes an algebra-topology unified framework based on Chronogroup to address non-perturbative challenges in gauge theory and quantum gravity. By constructing the time-varying group law (∗t) and spectral temporal cohomology (Hk t(G,E)), we prove: 1.
ZHOU, ziqing, zhou, Changzheng
openaire   +1 more source

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