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Facile and eco-friendly method of starch nanocrystals esterified with oleic acid using natural clay as a catalyst: Synthesis, Box-Behnken optimization, characterization and analysis of thermal and antioxidant properties.
Int J Biol Macromol
December 2024
INFN-Laboratori Nazionali di Frascati, 00044 Frascati, Italy.
This study investigates the synthesis of corn starch nanocrystals (SNCs) via sulfuric acid hydrolysis. Esterification of oleic acid (OA) with SNCs was carried out using Maghnite-H as a catalyst, a non-polluting, eco-friendly proton-exchanged montmorillonite-based green catalyst suitable for various chemical processes. Optimization of synthesis parameters, including reaction temperature, duration, and catalyst quantity, was conducted using response surface methodology (RSM) with a central composite design incorporating three factors and three levels.
View Article and Find Full Text PDFPredictive value of nutritional status and serological indicators in elderly patients with mild cognitive impairment.
World J Psychiatry
December 2024
Department of Geriatrics, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, Jiangsu Province, China.
Background: Mild cognitive impairment (MCI) in elderly individuals is a transitional stage between normal cognition and dementia. Understanding the risk factors for MCI and identifying those at high risk are extremely important for the elderly population.
Aim: To analyze the risk factors for MCI in the elderly population and construct a clinical prediction model.
Elaboration of newly synthesized tetrahydrobenzo[b]thiophene derivatives and exploring their antioxidant evaluation, molecular docking, and DFT studies.
Sci Rep
November 2024
Department of Chemistry, Faculty of Science, Ain Shams University, Cairo, 11566, Egypt.
Herein, 2-amino-6-(tert-butyl)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile (1) was synthesized in excellent yield through gewald reaction in multi components one pot reaction. Compound 1 was utilized as a building block to synthesize a new group of tetrahydro benzo[b] thiophene congeners. The chemical structure of all the novel tetrahydro benzo[b]thiophene derivatives were elucidated through the melting point, elemental analysis, FT-IR, H-NMR, and mass spectroscopy.
View Article and Find Full Text PDFComparative Evaluation of Antioxidative and Anti-inflammatory Properties of Acerola-Mediated Silver Nanogel and Copper Oxide Nanogel.
Cureus
July 2024
Department of Periodontology, Thai Moogambigai Dental College and Hospital, Chennai, IND.
Background: The tropical plant acerola of the genus includes shrubs and trees with fruit that is high in nutrients and bioactive chemicals. Acerola stands out due to its exceptionally high ascorbic acid content, ranging from 1500 to 4500 mg/100 g. Vitamin C intake greatly influences gingival health.
View Article and Find Full Text PDFRethinking Nanoparticle Synthesis: A Sustainable Approach vs. Traditional Methods.
Chem Asian J
November 2024
Amity Institute of Applied Sciences, Amity University, Noida, 201301, India.
This review portrays a comparison between green protocols and conventional nanoparticle (NP) synthesis strategies, highlighting each method's advantages and limitations. Various top-down and bottom-up methods in NP synthesis are described in detail. The green chemistry principles are emphasized for designing safe processes for nanomaterial synthesis.
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