Results 51 to 60 of about 16,350,711 (297)

Hybrid Biofabrication of a Hierarchically Organized Periosteum‐Inspired In Vitro Platform

open access: yesAdvanced Healthcare Materials, EarlyView.
A hybrid biofabrication strategy integrates melt electrowriting with extrusion‐based 3D bioprinting to create a hierarchically organized periosteum‐inspired in vitro platform. Spatially defined osteogenic, fibrous, and endothelial cell‐containing compartments support long‐term culture, osteogenic maturation, and CD31+ endothelial cell organization ...
Yakui Liu   +7 more
wiley   +1 more source

Determination of total L-Ascorbic Acid by high performance liquid chromatography in human plasma [PDF]

open access: yesActa Medica Iranica, 2001
The total vitamin C content in human plasma is widely accepted as an indicator of the tissue status of vitamin C. A liquid chromatography method with ultraviolet detector (264 nm) for measuring ascorbic acid in human plasma was developed.
Oveisi MR   +1 more
doaj   +1 more source

The Products of Nitrite Reacted with L-Ascorbic Acid

open access: yes, 2011
The L-ascorbic acid can reduce the nitrite to nitric oxide, but the elevated nitrite-to-L-ascorbic acid ratio predisposes to the formation of potentially carcinogenic N-nitroso compound.
Tao Li, M.J. Yao, G.J. Guo, M. Hu
core   +1 more source

Catalytic Analysis. XXV : Microdetermination of Copper with l-Ascorbic Acid [PDF]

open access: yes, 2010
application/pdfThe microdetermination of copper was carried out by applying the catalytic behaviour of copper to the oxidation of l-ascorbic acid. After copper was reacted with l-ascorbic acid for a definite time by controlling temperature, remaining l ...
GOTO, Hidehiro, IKEDA, Shigero
core   +1 more source

Recent Progress in the Phase‐Controlled Synthesis of Ruthenium Nanocrystals for Catalytic Applications

open access: yesAdvanced Materials, EarlyView.
Template effect and kinetic control enable crystal‐phase engineering of Ru nanocrystals, granting access to either metastable fcc‐Ru or stable hcp‐Ru with distinct surface structures, thermal stabilities, and catalytic behaviors. Moreover, the hcp‐Ru can further serve as an epitaxial template to direct Pd and Rh nanocrystals into the metastable hcp ...
Jianlong He   +3 more
wiley   +1 more source

Photoacoustic Nanotagging for In Vivo Tracking and Optimization of Macrophage Immunotherapy in Solid Tumors

open access: yesAdvanced Materials, EarlyView.
Macrophage‐based immunotherapy for solid tumors is limited by poor tracking of cell localization and persistence. This study introduces nanotagged macrophages enabling near‐infrared photoacoustic imaging for real‐time monitoring. IFNγ‐conjugated tags enhance antitumor polarization without harming viability.
Seoyoon Song   +8 more
wiley   +1 more source

L-ascorbic acid determination in pharmaceutical formulations using a biosensor based on carbon paste modified with crude extract of zucchini (Cucurbita pepo)

open access: yesJournal of the Brazilian Chemical Society, 2000
A biosensor based on carbon paste modified with crude extract of zucchini (Cucurbita pepo) as a source of peroxidase is proposed for determining L-ascorbic acid in pharmaceutical formulations.
Fatibello-Filho Orlando   +1 more
doaj  

Selective Laser Sintering and Graphitization for Mono‐Matrix Unibody Fabrication of Integrated Stereo‐Circuit and Stereo‐Fluidic Wearable Electronics

open access: yesAdvanced Materials, EarlyView.
A novel selective laser sintering and graphitization (SLSG) 3D printing technology enables unibody fabrication of compacted insulating structures and conductive circuits in fluidic‐integrated wearable electronics through adaptive photonic modulation.
Li Zhang, Wing Cheung Mak
wiley   +1 more source

Study of complexes of cadmium with some L-amino acids and vitamin-C by voltammetric technique

open access: yesEclética Química, 2018
Voltammetric technique was used to study the binary and ternary complexes of cadmium with L-amino acids and vitamin-C (L-ascorbic acid) at pH =7.30 ± 0.01, μ = 1.0M KNO3 at 25ºC and 35ºC.
Farid Khan, Afroza Khanam
doaj   +1 more source

Light‐Programmed Localized Supersaturation Enables Ambient Aqueous Synthesis of Highly Crystalline Metal–Organic Frameworks

open access: yesAdvanced Materials, EarlyView.
In the proposed model, a photoinduced nanoreactor uses Cu2O self‐photooxidation to generate localized supersaturation. A metastable supersaturation state first forms a shell, creating a spatially confined environment that restricts reactant exchange; continued Cu release then drives the local environment toward a labile regime that favors predominantly
Yongdeok Ahn   +5 more
wiley   +1 more source

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