Results 61 to 70 of about 10,603 (209)

The effect of the environment on the evolution of galaxy colours [PDF]

open access: yes, 2006
In chapter 1 of this thesis, I give a brief overview of the birth of modern cosmology and the growth of the current paradigm. I then go on to describe the different types of galaxies, the star formation rates within them and give some notes about galaxy ...
Davies, Gregory Tudor
core  

Fourier-Transform Infrared (FTIR) Spectrophotometry: An Ecofriendly Method for the Analysis of Injectable Daptomycin

open access: yes, 2017
Daptomycin (DPT) is an important antimicrobial agent used in clinical practice because it is very active against several types of medicinally challengingGram-positive bacteria, such as methicillin-resistant Staphylococcus aureus and vancomycin-resistant ...
Salgado, Hérida Regina Nunes [UNESP]   +3 more
core   +1 more source

Self‐Sustaining Lactate Depletion Nanoplatform Remodels Tumor Microenvironment and Augments Synergistic Photodynamic/Photothermal/Chemodynamic/Starvation Therapy for Eradication of Colon Cancer

open access: yesAdvanced Science, EarlyView.
The HILA nanoplatform integrates HMnO2, LOX, and ICG to orchestrate multimodal therapy (starvation, chemodynamic, photodynamic, and photothermal) for achieving efficient colon cancer eradication. The established HMnO2‐LOX catalytic cycle continuously consumes lactate, acidifys microenvironment, relieves hypoxia, and generats reactive oxygen species ...
Yu‐E. Wang   +11 more
wiley   +1 more source

Laser Irradiation of Carbonaceous Chondrite Simulants: Space-weathering Implications for C-complex Asteroids

open access: yesThe Planetary Science Journal
Surfaces of carbonaceous asteroids (C-complex) have shown diverse, contrasting spectral variations, which may be related to space weathering. We performed laser irradiation experiments on CI and CM simulant material under vacuum to mimic the spectral ...
Andy J. López-Oquendo   +2 more
doaj   +1 more source

Functionalized Plasmonic Nanoparticles: Synthesis, Surface Engineering and Emerging Biomedical Applications

open access: yesThe Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science
Functionalized plasmonic nanoparticles have attracted significant attention in biomedical research due to their unique optical properties, high surface reactivity, and versatile surface chemistry.
Mariana BUȘILĂ
doaj   +1 more source

Natural Aging of Biomaterials in Ambient and Physiological Environments

open access: yesAdvanced NanoBiomed Research, EarlyView.
Biomaterials used in biomedical applications can change their physical properties over time, even under ambient and physiological conditions. This review highlights key studies on the natural aging of materials ranging from soft hydrogels to metals and ceramics, emphasizing how time‐dependent changes influence function and performance.
Shuyu Zhang, Anne E. Staples
wiley   +1 more source

Degradation Mechanisms, Encapsulation‐Based Stabilization, and Analytical Detection of Vitamin A

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
ABSTRACT Vitamin A is an important lipid‐soluble micronutrient essential for vision, immune function, and overall growth and development. However, vitamin A is unstable and susceptible to environmental factors because of its conjugated structure and inherent chemical reactivity.
Latheesha Abeywardana   +5 more
wiley   +1 more source

Optical constants of exoplanet haze analogs from 0.3 to 30 µm: Comparative sensitivity between spectrophotometry and ellipsometry [PDF]

open access: yes
International audienceWe report new optical constants (refractive index, n, and extinction coefficient, k) for exoplanet haze analogs from 0.3 to 30 µm. The samples were produced in a simulated N 2-dominated atmosphere with two different abundance ratios
Carrasco, N.   +32 more
core   +1 more source

Magnetic lipase B from Candida antarctica (CALB) biocatalyst for integrated valorization of tilapia by‐products and biodiesel biorefining

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract The immobilization of lipase B from Candida antarctica (CALB) on an amino‐epoxy functionalized magnetic support (Fe3O4‐PEI‐DGEBA) resulted in a highly stable and efficient biocatalyst for biofuel production from tilapia oil. The synthesized support was characterized using scanning electron microscopy, transmission electron microscopy, X‐ray ...
Rafael Leandro Fernandes Melo   +12 more
wiley   +1 more source

Intrinsic And Extrinsic Absorption Of Chemical Vapor Deposition Single-Crystal Diamond From The Middle Ultraviolet To The Far Infrared

open access: yes, 2015
Optical absorption is reported in high-quality single-crystal Type IIa diamonds grown by microwave-assisted chemical vapor deposition. Laser calorimetry and spectrophotometry were used at wavelengths from the ultraviolet to the infrared. There is minimal
Webster, Scott   +4 more
core   +2 more sources

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