Results 81 to 90 of about 6,853 (289)

Mimic, target, and adapt: Cell membrane‐coated nanoplatforms for precision and immune‐guided cancer treatment

open access: yesBMEMat, EarlyView.
This Perspective explores the emerging landscape of cell membrane‐coated nanoparticles (CM‐NPs) as intelligent, immune‐compatible platforms for cancer therapy. Highlighting design strategies, translational challenges, and competitive positioning, it outlines how integrating biomimetic targeting with advanced analytical and manufacturing tools could ...
A. K. M. M. Alam   +4 more
wiley   +1 more source

The chemical nature of the melanins from Coprinus spp

open access: yes, 1983
10 pages, 2 figures, 3 tables, 51 references.Among the Basidiomycetes the species of the genus Coprinus have black spores and hymenia that, at maturity, are transformed through autodigestion into a black or inky fluid that drops from the pileus and ...
Sáiz-Jiménez, Cesáreo
core   +1 more source

Harnessing ferroptosis from multilayer defense networks to nanoplatforms for specific cancer therapy

open access: yesBMEMat, EarlyView.
Nanomaterials target metabolically‐regulated ferroptosis for cancer therapy. Iron‐based or alternative nanoplatforms integrate ferroptosis with chemotherapy, immunotherapy, or radiotherapy. They enable stimulus‐responsive therapies (photothermal, photodynamic, sonodynamic) activated by near‐infrared, light, or ultrasound, achieving potent synergistic ...
Xinyue Xu   +5 more
wiley   +1 more source

Controllable engineered probiotic microspheres for treating ulcerative colitis: A cascade enzyme‐catalyzed strategy to restore intestinal redox homeostasis

open access: yesBMEMat, EarlyView.
A dual strategy integrating genetic engineering and physical encapsulation was proposed to enhance the cell viability and antioxidant properties of probiotics. The cascade antioxidant enzymes released from probiotic microspheres restore intestinal redox homeostasis by eliminating intestinal reactive oxygen species for ulcerative colitis treatment ...
Xiaolong Mao   +9 more
wiley   +1 more source

Evidence of Unprecedented High Electronic Conductivity in Mammalian Pigment Based Eumelanin Thin Films After Thermal Annealing in Vacuum

open access: yesFrontiers in Chemistry, 2019
Melanin denotes a variety of mammalian pigments, including the dark electrically conductive eumelanin and the reddish, sulfur-containing, pheomelanin.
Ludovico Migliaccio   +7 more
doaj   +1 more source

Shedding Light on Synthetic Autocatalysis: From Conventional Closed‐Shell Chemistries to Overlooked Open‐Shell Occurrences

open access: yesChemistry – A European Journal, EarlyView.
Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley   +1 more source

A Mononuclear Scenario for the Copper‐Catalyzed Monooxygenation of Phenolic Substrates

open access: yesChemistry – A European Journal, EarlyView.
ABSTRACT Whereas a dinuclear pathway applies to the monooxygenation of phenols by the type 3 copper enzyme tyrosinase, a mononuclear pathway has been identified for the same reaction in corresponding small‐molecule systems. DFT calculations of five copper model complexes reveal that the latter mechanism is energetically feasible, identifying all ...
Alexander Koch   +3 more
wiley   +1 more source

Estudo da afinidade da melanina pelo ion Fe(III) [PDF]

open access: yes, 2009
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Química.Melanina é um pigmento escuro formado pela oligomerização de moléculas, com grupos majoritários catecol e quinone-imina, provenientes da ...
Costa, Thiago Guimarães
core  

Multiphoton FLIM Analyses of Native and UVA-Modified Synthetic Melanins

open access: yes, 2023
To better understand the impact of solar light exposure on human skin, the chemical characterization of native melanins and their structural photo-modifications is of central interest.
Sandra Del Bino   +5 more
core   +1 more source

Cytological Features of Clear Cell Sarcoma in Exfoliative and Effusion Cytology Specimen—A Case Report and Literature Review

open access: yesDiagnostic Cytopathology, EarlyView.
ABSTRACT Clear cell sarcoma of soft tissue (CCSST) with malignant effusion is a rare yet clinically aggressive appearance, which may pose a diagnostic pitfall with its overlapping cytomorphologic features with metastatic melanoma and carcinoma.
William H. Wu   +2 more
wiley   +1 more source

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