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Other Reactions from Gloves
Published in Robert N. Phalen, Howard I. Maibach, Protective Gloves for Occupational Use, 2023
T. Bullock, A. Sood, J.S. Taylor
Ortho-phthalaldehyde (OPA) is a disinfectant for heat-sensitive medical equipment that has recently been introduced to the hospital setting and is gaining popularity. It is often used as an alternative to glutaraldehyde sterilization due to its superior anti-mycobactericidal activity. Though OPA is more effective than glutaraldehyde at disinfecting, it appears to be more irritating, even when compared in lower concentrations of OPA.128 Ortho-phthalaldehyde is an aromatic dialdehyde that has a barely perceptible odor and might be a dermal and respiratory sensitizer. Many allergic reactions including anaphylaxis, urticaria, angioedema, and severe pruritus have been reported.129 Many protective gloves are permeable to OPA, and individuals working with OPA-sterilized equipment should take proper precautions. Nitrile gloves appear to be much more resistant to OPA than vinyl gloves.130
Isolation and identification of naphthalene degrading bacteria and their degradation characteristics under rainwater environment in heavily polluted areas
Published in Journal of Environmental Science and Health, Part A, 2021
Jiaying Zhou, Xiaodan Fan, Jinjia Li, Xueqi Wang, Zhengtong Yuan
The results of GC–MS indicated that WJ-1 degraded naphthalene to produce four intermediate compounds as shown in Figures 8 and 9. Under the influence of the complex composition of rainwater, distractors were introduced in the process of oxidation, and atypical naphthalene degradation products were produced. Naphthalene underwent oxidation followed by ring fission to produce 3,4-dihydronaphthalene-1-carboxylic acid; then, oxidation continued by ring fission to produce o-phthalaldehyde and 3-(2-oxo-cyclohex-3-enyl)-propionic acid. Although GC–MS did not detect phthalic acid, o-phthalaldehyde might undergo oxidation and produce phthalic acid with a short time. Then, phthalic acid may undergo ring fission followed by hydroxylation to produce levulinic acid. 3-(2-Oxo-cyclohex-3-enyl)-propionic acid underwent ring fission followed by demethylation to also produce phthalic acid. Levulinic acid can be further metabolized into water and carbon dioxide through the tricarboxylic acid cycle (TCR).
Viburnum opulus fruit extract-capped gold nanoparticles attenuated oxidative stress and acute inflammation in carrageenan-induced paw edema model
Published in Green Chemistry Letters and Reviews, 2022
Cristina Bidian, Gabriela Adriana Filip, Luminița David, Bianca Moldovan, Ioana Baldea, Diana Olteanu, Mara Filip, Pompei Bolfa, Monica Potara, Alina Mihaela Toader, Simona Clichici
Type IV lambda-carrageenan, indomethacin, carboxymethylcellulose, o-phthalaldehyde, 2-thiobarbituric acid, Bradford reagent, t-butyl hydroperoxide, and glutathione reductase were obtained from Sigma-Aldrich Chemicals GmbH (Germany). EDTA-Na2 was purchased from Merck KGaA Darmstadt (Germany) and absolute ethanol and EDTA-Na2 were purchased from Chimopar (Bucharest). ELISA tests for cytokines (TNF-α, IL-1β, IL-1α, IL-6, and IL-10) were purchased from Luminex Corporation (Austin, TX, USA). Antibodies against COX-2, iNOS, and glyceraldehyde 3-phosphate dehydrogenase (GAPDH) were procured from Santa Cruz Biotechnology (Santa Cruz, CA, USA). All reagents were of high-grade purity.
Comparative evaluation of drying methods on kinetics, biocompounds and antioxidant activity of Bacillus subtilis-fermented dehulled adlay
Published in Drying Technology, 2020
Anyan Wen, Chunzhi Xie, Muhammad Mazhar, Yong Zhu, Haiying Zeng, Likang Qin, Yi Zhu
Free amino acids content was measured according to the method described by Liang with minor modifications.[18] Amino acids was extracted from 0.5 g dried flower tissue with 50 mL of 0.01 mol/L hydrochloric acid solution in an ultrasonic bath for 30 min, and filtered through Whatman No.4 filter paper. The filtrate was filtered using a 0.45 µm CA nonsterile filter, mixed with o-phthalaldehyde reagent in an Eppendorf tube, and immediately injected onto HPLC.