Results 131 to 140 of about 185,173 (397)

Damage Microenvironment Guided Responsive Smart Hydrogel Design for Self‐Regenerative Repair in Chronic Wound Healing

open access: yesAdvanced Materials Interfaces, EarlyView.
Chronic wounds remain a major therapeutic challenge, with VEGF applications hindered by rapid degradation and systemic side effects. Here, a dual‐responsive chitosan–gelatin hydrogel is reported, functionalized with dopamine, glutathione, and MMP‐sensitive motifs, enabling spatiotemporally controlled VEGF release and enhanced biocompatibility, thereby ...
Zhenghui Xiong   +5 more
wiley   +1 more source

Isolation and characterization of chitin from Millipede (Spirobolida)

open access: yesJournal of Basic and Applied Zoology, 2018
Background Chitin is the second most abundant bio-polysaccharide found in nature after cellulose. It is a polymer of β-1, 4-N-acetylglucosamine that occurs naturally in three polymorphic forms α, β, and γ-chitin. The main commercial sources of chitin are
Raghu H. S   +2 more
doaj   +1 more source

Chitin and chitosan derived from crustacean waste valorization streams can support food systems and the UN Sustainable Development Goals

open access: yesNature Food, 2022
H. Amiri   +8 more
semanticscholar   +1 more source

Magnetic Field Driven Microrobot Based on Hydrogels

open access: yesAdvanced Robotics Research, EarlyView.
Hydrogel‐based magnetic microrobots synergize remote magnetic control with the biocompatibility of flexible hydrogels, emerging as promising tools for minimally invasive biomedicine. This enables remotely controllable, untethered navigation within complex biological microenvironments.
Juncai Song, Yubing Guo
wiley   +1 more source

ChtVis-Tomato, a genetic reporter for in vivo visualization of chitin deposition in Drosophila [PDF]

open access: yes, 2015
Chitin is a polymer of N-acetylglucosamine that is abundant and widely found in the biological world. It is an important constituent of the cuticular exoskeleton that plays a key role in the insect life cycle.
Adler, Paul N   +2 more
core   +1 more source

N‐Containing Carbon Materials in Metal‐Free and Non‐Noble Metal Liquid Phase Heterogenous Catalysis

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
Over 100 examples of non‐noble metal supported on N‐containing and metal‐free N‐containing carbon catalysts are discussed. Particular emphasis is put on how different N‐functionalities influence catalyst performance and stability. Preparation procedures are also examined, with a strong focus on how the heat treatment temperature influences N ...
Fulvio Varamo, Anna Katharina Beine
wiley   +1 more source

Towards a radiocarbon chronology of the Late-Glacial: Sample selection strategies [PDF]

open access: yes, 2001
This paper outlines a dating program designed to test the reproducibility of radiocarbon dates on different materials of Late-Glacial age (plant macrofossils, fossil beetle remains, and the "humic" and "humin" chemical fractions of limnic sediments ...
Bengtsson   +14 more
core   +1 more source

SIP‐SRS Imaging of Cell Wall Synthesis Identifies a Synergy between Micafungin and Amphotericin B

open access: yesAdvanced Science, EarlyView.
We employed glucose‐d7–based stable isotope probe‐assisted SRS microscopy (SIP‐SRS) C–D imaging to visualize fungal cell wall synthesis and remodeling under antifungal treatment. Amphotericin B (AmB) induced notable daughter cell wall thickening, prompting a combinational therapy with AmB and micafungin.
Meng Zhang   +6 more
wiley   +1 more source

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