Gallic acid nanoflower immobilized membrane with peroxidase-like activity for m-cresol detection.

Sci Rep

Department of Analytical Chemistry, Faculty of Pharmacy, Erciyes University, 38039, Kayseri, Turkey.

Published: October 2020

We report fabrication of new generation nanoflowers (NFs) using gallic acid (GA) and copper (II) ions (Cu) acted as an organic and inorganic component, respectively with effective peroxidase mimic activities in solution and on filter membrane. Unlike the typical protein NFs synthesis mechanism, gallic acid NFs (GA-NFs) was formed via coordination reaction between carboxyl groups of GA and Cu. The different morphologies of the GA-NFs were acquired based upon whether the carboxyl groups in gallic acid are active or not. The peroxidase mimic activity of the GA-NFs relied on the Fenton reaction in the presence of hydrogen peroxide (HO) was tested towards m-cresol as a function of concentration of the GA-NFs, m-cresol, HO and reaction time. Under the optimized conditions, the oxidative coupling of m-cresol with 4-aminoantipyrine (4-AAP) was catalyzed by the GA-NFs dispersed in solution and adsorbed on filter paper to form an antipyrine dye and it was visually and spectrophotometrically recorded. The m-cresol with range of 0.05-0.5 mM was detected in 10 min and 15 min by using the GA-NFs in solution and on filter paper, respectively. We demonstrated that the NFs can be produced from non-protein molecules and GA-NFs can be used as a promising nanocatalyst for a variety of applications.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7542149PMC
http://dx.doi.org/10.1038/s41598-020-73778-7DOI Listing

Publication Analysis

Top Keywords

gallic acid
16
peroxidase mimic
8
solution filter
8
carboxyl groups
8
filter paper
8
ga-nfs
7
gallic
4
acid nanoflower
4
nanoflower immobilized
4
immobilized membrane
4

Similar Publications

This study evaluated the phytochemicals from extracts of Psidium guajava L. leaves (PGE), and its antioxidant and photoprotective effects. PGE showed constant production of total phenolics and maintained high antioxidant capacity across seasons and years.

View Article and Find Full Text PDF

Background Voandzou and cowpea are two legumes commonly used in African dishes as alternative sources of proteins. The present study aimed to evaluate the effects of steaming and frying on the nutritional and functional properties of Cameroonian cowpea () and Bambara groundnut (). Methodology The nutritional values, as well as the antioxidant, alpha-amylase, and alpha-glucosidase inhibitory activities of "koki" and "beignet koki," which are the traditional steamed dish and fritters made from cowpea and Bambara groundnut, respectively, were assessed.

View Article and Find Full Text PDF

In this work, artificial neural network coupled with multi-objective genetic algorithm (ANN-NSGA-II) has been used to develop a model and optimize the conditions for the extracting of the Mentha longifolia (L.) L. plant.

View Article and Find Full Text PDF

The comparison of the antioxidant, antibacterial and antiviral potential of Polish fir honeydew and Manuka honeys.

Sci Rep

December 2024

Department of Chemistry and Food Toxicology, Institute of Food Technology and Nutrition, University of Rzeszow, Ćwiklińskiej 1a St, Rzeszow, 35-601, Poland.

The aim of the present study was to compare the antioxidant, antibacterial and antiviral activities of Podkarpackie coniferous honeydew honey and Manuka honey. The quality of tested honey samples (honeydew-12 and Manuka-4) regarding honey standard was evaluated as well as additional indicators (methylglyoxal, total phenolics and HPTLC phenolic profile, antioxidant potential, glucose oxidase activity, and hydrogen peroxide) were compared. Antibacterial potential was analyzed against Gram-positive (S.

View Article and Find Full Text PDF

This study investigated the antihyperglycemic potential of a hydroalcoholic extract from Syzygium malaccense leaves (E-SM) and isolate phenolic compounds with antioxidant and cytotoxic activities through a bioguided assay. The aim was to explore the therapeutic properties of S. malaccense in managing hyperglycemia and oxidative stress-related conditions.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!