Results 71 to 80 of about 34,232 (289)

Multi‐Component Functionalized Bifidobacterium Longum Hydrogel for Multi‐Target Integrated Therapy of Colitis‐Associated Anxiety and Depression

open access: yesAdvanced Science, EarlyView.
A pH/MMP dual‐responsive Bifidobacterium longum (BL) hydrogel (INPs@BL@Gel) functionalized with baicalin, tyrosine, and inulin is constructed. It enables gastric protection, inflammation‐targeted release, and prolonged intestinal colonization. By remodeling gut microbiota, elevating beneficial neuroactive metabolites (homovanillic acid, short‐chain ...
Shuo Zhang   +17 more
wiley   +1 more source

Validação de métodos para determinação de fluoxetina em cápsulas Validation of methods for determination of fluoxetine capsules

open access: yesQuímica Nova, 2008
A UV spectrophotometric method was developed and validated and a chromatographic method was adapted from the American Pharmacopeia for the analysis of Fluoxetine Hydrochloride capsules.
Marlene Maria Fregonezi-Nery   +6 more
doaj   +1 more source

Interfacial Control in Cu–MXene Hybrids Enables Selective NOx‐to‐NH3 Electroconversion: A Critical Review

open access: yesAdvanced Science, EarlyView.
Cu‐MXene interfacial catalysts provide a promising platform for electrochemical NOx upcycling to ammonia. The synergy between Cu active sites and conductive, surface‐tunable MXene supports promotes NOx adsorption, intermediate stabilization, and selective NH3 formation while suppressing competing hydrogen evolution, offering a route toward sustainable ...
Hafiz Muhammad Adeel Sharif   +5 more
wiley   +1 more source

A SENSITIVE ANALYTICAL (RP-HPLC-PDA, UV/VIS) METHOD FOR THE DETERMINATION OF NEWLY SYNTHESIZED N-ISONICOTINOYL-N´-(3-FLUOROBENZAL)HYDRAZONE (SH2) IN AQUEOUS PHASE

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2017
The purpose of the present study was to develop a simple, rapid and reproducible analytical method for the determination of N-isonicotynoyl-N´-(3-fluorobenzal)hydrazone (SH2) - a synthesized by us halogenated isoniazid derivative with high ...
Zvezdelina YANEVA, Nedyalka GEORGIEVA
doaj   +1 more source

UV-VIS spectrophotometric determination of magnesium after complexing with 8-hydroxy quinoline in sodium dodecyl sulphate micellar medium

open access: yesCumhuriyet Science Journal, 2020
In this study, an alternatifive UV-VIS spectrophotometric method for determination of magnesium was proposed. The method is based on complexation with 8-hydoxyquinoline (oxin) in sodium dodecyl sulphate (SDS) micelle medium, the absorbance of the product
Ersin Yulmaz, Cemalettin Uyan
doaj   +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

Identificação de extratos etanólicos de madeiras utilizando seu espectro eletrônico de absorção e análise multivariada

open access: yesQuímica Nova, 2012
The application of multivariate analysis to spectrophotometric (UV) data was explored for distinguishing extracts of cachaça woods commonly used in the manufacture of casks for aging cachaças (oak, cabreúva-parda, jatobá, amendoim and canela-sassafrás ...
Alexandre Ataide da Silva   +3 more
doaj   +1 more source

UV SPECTROPHOTOMETRIC METHODS FOR THE SIMULTANEOUS DETERMINATION OF AMOXICILLIN AND FLUCLOXACILLIN. [PDF]

open access: yesAl-Azhar Journal of Pharmaceutical Sciences, 2018
Spectrophotometric methods were introduced for the simultaneous determination of Amoxicillin (AMX) and flucloxacillin(FLX) in their pure forms and  capsules pharmaceutical formulations. The first method was ratio difference (RD), in which the amplitude difference between 238 and 255 nm for AMX and between 254 and 238 nm for FLX were measured.The second
openaire   +1 more source

Determinação de parâmetros de qualidade do biodiesel utilizando espectrofotometria UV/Vis [PDF]

open access: yes, 2009
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Química.Ao longo do seu desenvolvimento humanidade criou uma dependência dos combustíveis derivados do petróleo como a gasolina e o diesel. Porém
Spudeit, Daniel Alfonso
core  

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