Results 111 to 120 of about 251,789 (396)

Camouflaged Nanozymes with Oxidation‐Promoting Activities Triggering Ferroptosis for Radio‐Immunotherapy

open access: yesAdvanced Science, EarlyView.
This study develops a cancer cell membrane‐coated nanozyme that enhances radiotherapy and reshapes the immunosuppressive microenvironment by generating oxygen in situ and disrupting tumor antioxidant defenses, offering a new strategy for breast cancer radioimmunotherapy.
Kun Qiao   +11 more
wiley   +1 more source

Nitrogen Insertion via Asymmetric Condensation and Chirality Transfer: A Stereodivergent Entry to Cyanocyclopropanes

open access: yesAngewandte Chemie, EarlyView.
The synthesis of cyanocyclopropanes is achieved via asymmetric nitrogen insertion into prochiral cyclobutanones. Key mechanistic steps involve an organocatalyzed asymmetric condensation followed by chirality transfer via an intercepted Neber rearrangement.
Marlene Arnold   +4 more
wiley   +2 more sources

Synergistic Modulating of Mitochondrial Transfer and Immune Microenvironment to Attenuate Discogenic Pain

open access: yesAdvanced Science, EarlyView.
Gallic acid (GA) and copper ions self‐assemble to form nanoparticles, which are then modified with mitochondrial targeting peptides and gap junction modulator. These nanoparticles scavenge mitochondrial reactive oxygen species to induce M2 polarization and enhance intercellular mitochondrial transfer.
Xinzhou Wang   +13 more
wiley   +1 more source

Biomimetic Microstructured Scaffold with Release of Re‐Modified Teriparatide for Osteoporotic Tendon‐to‐Bone Regeneration via Balancing Bone Homeostasis

open access: yesAdvanced Science, EarlyView.
This study develops RPTH by re‐modifying teriparatide and designs a biomimetic microstructured scaffold (BMRP) loaded with RPTH to address osteoporotic tendon‐to‐bone interface repair. The BMRP restores tissue architecture by balancing bone homeostasis and remodeling the microstructure, achieving functional recovery in an osteoporotic rotator cuff tear
Chengzhong Xu   +11 more
wiley   +1 more source

Hydrogel‐Transformable Probiotic Powder for Targeted Eradication of Helicobacter pylori with Enhanced Gastric Mucosal Repair and Microbiota Preservation

open access: yesAdvanced Science, EarlyView.
A multifunctional, edible, and hydrogel‐transformable probiotic powder is developed based on the “bacteria‐mediated bacterial eradication” strategy. By leveraging the targeted binding capability of L. reuteri to H. pylori, this approach achieves an integrated therapeutic effect, including bactericidality, anti‐inflammation, gastric mucosal repair, and ...
Yongkang Lai   +9 more
wiley   +1 more source

YBCO microwave resonators for strong collective coupling with spin ensembles [PDF]

open access: yes, 2015
Coplanar microwave resonators made of 330 nm-thick superconducting YBCO have been realized and characterized in a wide temperature ($T$, 2-100 K) and magnetic field ($B$, 0-7 T) range. The quality factor $Q_L$ exceeds 10$^4$ below 55 K and it slightly decreases for increasing fields, remaining 90$\%$ of $Q_L(B=0)$ for $B=7$ T and $T=2$ K.
arxiv   +1 more source

Robust Controlled Degradation of Enzyme Loaded PCL‐Based Fibrous Scaffolds Toward Scarless Skin Tissue Regeneration

open access: yesAdvanced Science, EarlyView.
A novel biodegradable wound dressing (E‐PCLs) based on polycaprolactone (PCL) and an enzyme complex (RHP‐BCL) is developed using a fiber microfluidic electrospinning technique. The dressing achieves complete degradation within 14 days, eliminates microplastic residues, and promotes scar‐free healing (99% in 21 days).
Lingling Fan   +7 more
wiley   +1 more source

In vitro propagated Mentha rotundifolia (L.) Huds and antioxidant activity of its essential oil

open access: yesCurrent Issues in Pharmacy and Medical Sciences, 2018
Mentha rotundifolia (L.) Huds is an aromatic plant used for its medicinal values. This study aims to select appropriate conditions for in vitro propagation of M. rotundifolia (L.) Huds and to evaluate yield and antioxidants activity of its essential oils
Benahmed Amira   +5 more
doaj   +1 more source

In Vitro Antioxidant Activity of Methanolic Extract of Piper retrofractum Vahl. [PDF]

open access: yes, 2015
Cabai jamu (Piper retrofractum Vahl.), which is originally from Indonesia and is extensively cultivated and traditionally used in Sumenep, Madura possess high potential medicinal properties.
Abdulgani, Nurlita   +4 more
core  

The investigation of EPR paramagnetic probe line width and shape temperature dependence in high-temperature superconductors of Bi–Pb–Sr–Ca–Cu–O system [PDF]

open access: yes, 2008
The work is related with the finding out of magnetic phases in strongly anisotropic high-temperature superconductor Bi1,7Pb0,3Sr2Ca2Cu3O10-δ in the temperature region where the superconductor is in the normal state.
Acrivos, Juana Vivó   +5 more
core   +3 more sources

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