Development and In-Vitro Evaluation of pH Responsive Polymeric Nano Hydrogel Carrier System for Gastro-Protective Delivery of Naproxen Sodium by Rai Muhammad Sarfraz, Muhammad Rouf Akram, Muhammad Rizwan Ali, Asif Mahmood, Muhammad Usman Khan, Husnain Ahmad, Muhammad Naeem Qaisar

“…Polyethylene glycol-g-poly (methacrylic acid) nanogels was developed through free radical polymerization technique. Formulation was characterized for swelling behaviour, entrapment efficiency, Fourier transform infrared (FTIR) spectroscopy, Differential scanning calorimetry (DSC), and Thermal Gravimetric Analysis (TGA), Powder X-ray diffraction (PXRD), Zeta size distribution, and Zeta potential measurements, and in-vitro drug release. pH dependent swelling was observed with maximum drug release at higher pH. …”
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Acute Toxicity and Antioxidant and Antibacterial Activities of Kyllinga polyphylla Willd. ex Kunth, Cyperaceae Family by Van-Ay Nguyen, Thi-Hang Phung, Thi-Diem-Trang Kieu, Trong-Hong-Phuc Nguyen

“…All parts of KP had the free radical scavenging capacity of DPPH, in which the root methanol extract had the best antioxidant capacity (EC50 = 9.54 ± 0.37 μg/mL). …”
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Exposure of cerebellar granule cells to nanosilver: Oxidative stress parameters and the protective effect of exogenous glutathione by Lidia Struzynska, Beata Toczylowska, Beata Dabrowska-Bouta, Elzbieta Zieminska

“…The results indicate that exposure of CGCs to AgNPs decreases cell viability and mitochondrial potential and increases intracellular calcium concentration and free radical production. The level of intracellular GSH significantly decreases in cells after short-term exposure, but overexpression of SOD1 is observed. …”
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Phytochemical Screening, Polyphenols Content, Antioxidant Power, and Antibacterial Activity of Herniaria hirsuta from Morocco by Kenza Ammor, Dalila Bousta, Sanae Jennan, Bahia Bennani, Abdellah Chaqroune, Fatima Mahjoubi

“…Extracts were screened for their possible antioxidant activities by three tests: DPPH free radical-scavenging, reducing power, and molybdenum systems. …”
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Phytochemical, Antioxidant, Anti-Inflammatory, and Thrombolytic Properties of Cleisomeria lanatum (Lindl.) Lindl. ex G. Don by Minhajur Rahman, Abu Taleb Surag, Roxy Begum, Md. Shakhuat Hossain Tusher, Mohammed Kamrul Huda

“…Antioxidant, anti-inflammatory, and thrombolytic properties were investigated using a free-radical scavenging assay, heat-induced albumin denaturation assay, and blood clotting inhibition assay. …”
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A Photochromic Copolymer Hydrogel Contact Lens: From Synthesis to Application by Xiaoli Yang, Limin Huang, Lihua Zhou, Hao Xu, Zihan Yi

“…A photochromic poly(2-hydroxyl-ethyl methacrylate-N-vinylpyrrolidone-spironaphthoxazine) hydrogel (p(HEMA-NVP-SPO)) has been designed and synthesized by free radical polymerization in this work. The chemical and structural information of hydrogels was investigated by IR spectra, equilibrium water content (EWC), and SEM. …”
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Advances in Research on the Interaction of Food-derived Polysaccharide and Polyphenol by Jun HE, Mengdie WANG, Xiaoqiang CHEN, Miaomiao YING

“…This paper describes the means of characterizing food-derived polysaccharide and polyphenol interactions, including Fourier transform infrared (FT-IR) spectroscopy and nuclear magnetic resonance (NMR) spectroscopy, and interaction mechanisms such as enzyme-catalyzed reactions and free radical-induced reactions was also summarized. In addition, this paper focuses on the effects of concentration, pH, temperature and ionic strength on the interaction between polysaccharides and polyphenols, and further generalizes the alteration of physicochemical properties such as solubility and crystallinity, as well as bioactivities such as antioxidant and antimicrobial activities of polysaccharides and polyphenols under the interaction. …”
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Enhanced antioxidant performance of phlorotannin compounds from brown seaweed Sargassum tenerrimum via nanoliposomal encapsulation by Esmat Mohammadi, Bahareh Shabanpour, Parastoo Pourashouri, Vahide Payamnoor, Salim Sharifian

“…Additionally, total antioxidant activity, free radical scavenging, and iron reduction improved significantly (p < 0.05) due to the large surface area and high antioxidant load capacity of NLs. …”
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Untargeted metabolomics of Aloe volatiles: Implications in pathway enrichments for improved bioactivities by Nehal Batra, Priyankar Dey

“…The leaves of five highly utilized Aloe sp. were subjected to untargeted gas chromatography-mass spectrometry analysis followed by testing of free-radical scavenging effects against components of the Fenton and Haber-Weiss reaction. …”
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Advancements in electron paramagnetic resonance (EPR) spectroscopy: A comprehensive tool for pharmaceutical research by Bešić Erim, Rajić Zrinka, Šakić Davor

“…We detail how EPR spectroscopy can be employed to assess free radical scavenging properties in pharmaceutical compounds, elucidate drug mechanisms of action, and explore pharmacokinetics. …”
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Management of Ocular Diseases Using Lutein and Zeaxanthin: What Have We Learned from Experimental Animal Studies? by Chunyan Xue, Richard Rosen, Adrienne Jordan, Dan-Ning Hu

“…The mechanisms responsible for these effects of lutein and zeaxanthin include prevention of phototoxic damage by absorption of blue light, reduction of oxidative stress through antioxidant activity and free radical scavenging, and their anti-inflammatory and antiangiogenic properties. …”
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Involvement of Coenzyme Q10 in Various Neurodegenerative and Psychiatric Diseases by Alireza Ebrahimi, Amirhossein Kamyab, Sahar Hosseini, Sedigheh Ebrahimi, Soheil Ashkani-Esfahani

“…Second, this molecule has an antioxidant and free-radical scavenger nature. Since then, several investigations have indicated that the drug may benefit patients with cardiovascular, neuromuscular, and neurodegenerative illnesses. …”
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Chemical Composition, Total Phenolic Content, and Antioxidant Activity of the Essential Oils Extracted from the Needle of Ten Pinus Taxa by Zhihong Liu, Weixin Fan, Qing Xie

“…Furthermore, we determined the total phenolic content (TPC) of the EOs, with the values from 26.50 to 60.01 mg eq GAE/mL EO. DPPH free radical scavenging activity (DPPH), ferric reducing antioxidant power (FRAP), and ABTS radical cation scavenging activity (ABTS) were used to evaluate the antioxidant capacity of the EOs, and the obtained values were ranged from 499.15 to 1,272.75 mmol eq Trolox/mL EO, 1,255.67 to 3,857.93 mmol eq Trolox/mL EO, and 370.81 to 1,677.19 mmol eq Trolox/mL EO, respectively. …”
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Anticholinesterase Toxicity and Oxidative Stress by Dejan Milatovic, Ramesh C. Gupta, Michael Aschner

“…However, the mechanism(s) involved in brain/muscle damage appear to be linked with alteration in antioxidant and the scavenging system leading to free radical-mediated injury. OPs and CMs cause excessive formation of F2-isoprostanes and F4-neuroprostanes, in vivo biomarkers of lipid peroxidation and generation of reactive oxygen species (ROS), and of citrulline, a marker of NO/NOS and reactive nitrogen species (RNS) generation. …”
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In Vitro Antioxidant Capacity and Neuronal Cell Toxicity of Roots of Ostericum koreanum Maximowicz by Ramalingam Mahesh, Hyo Won Jung, Jun Hong Park, Yong-Ki Park

“…These results suggest that O. koreanum shows good antioxidant activities in vitro by inhibiting free radicals. These findings provide a rationale for the in vivo testing. …”
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Microwave-Assisted Synthesis of Cross-Linked Co-poly(itaconic anhydride-methyl methacrylate): The Effects of the Molar Ratio and Cross-Linking Agent on the Thermal Stability by Ali Aldalbahi, Mostafizur Rahaman, Ayman El-Faham

“…In the present work, a new series of cross-linked copolymers based on itaconic anhydride and methyl methacrylate were prepared employing free radical copolymerization in the presence of azobisisobutyronitrile as an initiator and 2-butanone as a solvent under microwave irradiation. …”
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New Insights into Aspirin’s Anticancer Activity: The Predominant Role of Its Iron-Chelating Antioxidant Metabolites by George J. Kontoghiorghes

“…The mechanisms of cancer risk reduction in LTLDA users is likely due to the ACM’s targeting of iron involved in free radical damage, iron-containing toxins, iron proteins, and associated metabolic pathways such as ferroptosis. …”
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INTENSITY OF NITRIC OXIDE SYNTHESIS IN THE BLOOD OF RATS UNDER THE INFLUENCE OF SODIUM FLUORIDE by I.L. Kolisnyk

“…It is known that when the rate of free radical reactions in the body increases, NO can react with a superoxide anion radical to form peroxynitrite, a highly reactive compound with destructive properties against proteins and lipids. …”
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Synthesis and Characterization of Oxidovanadium(IV) Complexes of 2-((E)-(6-Fluorobenzo[d]thiazol-2-ylimino)methyl)-6-methoxyphenol and Their Antimicrobial, Antioxidant, and DNA-Bin... by K. Savithri, H. D. Revanasiddappa

“…The in vitro antioxidant activity of all the compounds was determined by DPPH free radical-scavenging assay. Intercalative mode of DNA-binding properties of the oxidovanadium(IV) complexes with calf-thymus DNA (CT-DNA) was investigated using UV, fluorescence spectra, and viscosity measurements.…”
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Study on Properties of Branched Hydrophobically Modified Polyacrylamide for Polymer Flooding by Lei-Ting Shi, Cheng Li, Shan-Shan Zhu, Jie Xu, Bao-Zong Sun, Zhong-Bin Ye

“…A new branched hydrophobically modified polyacrylamide (BHMPAM) was synthesized by the free radical copolymerization of functionalized branched macromolecular skeleton monomer, acrylamide (AM), acrylic acid (AA), and hydrophobic monomer hexadecyl-allyl-dimethyl ammonium chloride (C16DMAAC). …”
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