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- Author:
- Ling Ling; Chunsheng Xiao; Yao Ma; Liyan Jiang; Sheng Wang; Liming Guo; Shimei Jiang; Xinhua Guo
- Source:
- Analytical chemistry 2019 v.91 no.14 pp. 8801-8807
- ISSN:
- 1520-6882
- Subject:
- 2,5-dihydroxybenzoic acid; aldehydes; analytical specificity; blood serum; desorption; detection limit; glycoproteins; humans; ionization; matrix-assisted laser desorption-ionization mass spectrometry; nitriles; peptides; polysaccharides; tandem mass spectrometry
- Abstract:
- ... Analysis of glycans by matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) is usually limited by the intrinsically low abundance and low ionization efficiency of glycans. Aiming to enhance the ionization efficiency of glycans and simplify the sample preparation procedure during MALDI-MS analysis, we reported herein a novel reactive matrix, 2-phenyl-3-(p-aminophenyl) acrylonitr ...
- DOI:
- 10.1021/acs.analchem.9b01434
- https://doi.org/10.1021/acs.analchem.9b01434
- Author:
- Huixin He; Liang Qin; Yawen Zhang; Manman Han; Jinming Li; Yaqin Liu; Kaidi Qiu; Xiaoyan Dai; Yanyan Li; Maomao Zeng; Huihong Guo; Yijun Zhou; Xiaodong Wang
- Source:
- Analytical chemistry 2019 v.91 no.4 pp. 2634-2643
- ISSN:
- 1520-6882
- Subject:
- 2,5-dihydroxybenzoic acid; absorption; alkaloids; brain; desorption; flavonoids; graphene oxide; image analysis; ionization; lipids; liquid chromatography; liver; metabolites; nanosilver; oligopeptides; plant tissues; rats; seeds; tandem mass spectrometry
- Abstract:
- ... Low-molecular-weight (low-MW) compounds have many essential functions in biological processes, and the molecular imaging of as many low-MW compounds as possible is critical for understanding complex biological processes. Matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) is an emerging molecular-imaging technology that enables determination of the spatial distributio ...
- DOI:
- 10.1021/acs.analchem.8b03522
- https://doi.org/10.1021/acs.analchem.8b03522
- Author:
- Bin Li; Ruiyang Sun; Andrew Gordon; Junyue Ge; Ying Zhang; Ping Li; Hua Yang
- Source:
- Analytical chemistry 2019 v.91 no.13 pp. 8221-8228
- ISSN:
- 1520-6882
- Subject:
- 2,5-dihydroxybenzoic acid; absorption; biochemical pathways; biomarkers; brain; central nervous system diseases; desorption; fatty acids; image analysis; ionization; matrix-assisted laser desorption-ionization mass spectrometry; metabolites; mice; nucleotides; sodium; sphingolipids
- Abstract:
- ... In many aspects of the matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI MSI) technique, the discovery of new MALDI matrixes has been a major task for the improvement of ionization efficiency, signal intensity, and molecular coverage. In this work, five analog compounds, including phthalhydrazide, 3-aminophthalhydrazide (3-APH or luminol) and its sodium salt, 4-aminophth ...
- DOI:
- 10.1021/acs.analchem.9b00803
- https://doi.org/10.1021/acs.analchem.9b00803
- Author:
- Xianming Su; Jian Zhang; Fenghua Li; Changkang Li; Jia Fu; Baoming Li; Ruoyun Chen; Jie Kang
- Source:
- Phytochemistry letters 2019 v.33 pp. 55-60
- ISSN:
- 1874-3900
- Subject:
- 2,5-dihydroxybenzoic acid; Croton; Morinda; aerial parts; anti-inflammatory activity; benzoic acid; ears; edema; ethyl acetate; gene expression; glycosides; herbal medicines; indigestion; inhibitory concentration 50; interleukin-6; mice; oils; spectral analysis; tracheitis
- Abstract:
- ... The plant Morinda parvifolia is traditionally used as an herbal medicine for the treatment of dyspepsia, tracheitis, and coughing. The ethyl acetate extract of the aerial parts of M. parvifolia showed significant inhibition against ear edema in mice induced by croton oil (36.4% inhibition). Four undescribed glycosides, 2-hydroxymethyl anthraquinone-3-O-β-primeveroside, p-hydroxy benzoic acid 4-O-β ...
- DOI:
- 10.1016/j.phytol.2019.07.008
- https://doi.org/10.1016/j.phytol.2019.07.008
- Author:
- Ebru Demirel Sezer; Latife Merve Oktay; Elif Karadadaş; Hikmet Memmedov; Nur Selvi Gunel; Eser Sözmen
- Source:
- Journal of medicinal food 2019 v.22 no.11 pp. 1118-1126
- ISSN:
- 1557-7600
- Subject:
- 2,5-dihydroxybenzoic acid; Vaccinium myrtillus; antineoplastic activity; antineoplastic agents; antioxidant activity; antioxidants; apoptosis; blueberries; cytotoxicity; diet; flow cytometry; fruit extracts; kaempferol; liquid chromatography; neoplasms; oxidants; oxidative stress; polyphenols; protein composition; protein microarrays; proteins; quercetin; tandem mass spectrometry; therapeutics
- Abstract:
- ... In recent years, natural products gained popularity with their anti-inflammatory and antioxidant effects mediated by chemical compounds within their composition. Study results offering them as palliative therapy options in cancer or as anticancer agents with high levels of cytotoxicity brought a new approach to combine cancer treatment protocols with these products. From a different perspective, e ...
- DOI:
- 10.1089/jmf.2019.0098
- https://doi.org/10.1089/jmf.2019.0098
- Author:
- Aleksandra A. Jovanović; Bojana D. Balanč; Verica B. Djordjević; Ajda Ota; Mihaela Skrt; Katarina P. Šavikin; Branko M. Bugarski; Viktor A. Nedović; Nataša Poklar Ulrih
- Source:
- Colloids and surfaces 2019 v.183 pp. 110422
- ISSN:
- 0927-7765
- Subject:
- 2,5-dihydroxybenzoic acid; beta-sitosterol; cholates; encapsulation; enzymes; gastric juice; intestines; lipid peroxidation; membrane fluidity; pH; phosphatidylcholines
- Abstract:
- ... Multifunctional liposomes incorporating β-sitosterol were developed for delivery of gentisic acid (GA). The interactions of both compounds with phospholipid bilayer were interpreted viaeffects of different β-sitosterol content (0, 20 and 50 mol %) and different gentisic acid to lipid ratio (nGA/nₗᵢₚ from 10⁻⁵ to 1) on membrane fluidity and thermotropic properties. Multilamellar vesicles of phospha ...
- DOI:
- 10.1016/j.colsurfb.2019.110422
- https://doi.org/10.1016/j.colsurfb.2019.110422
- Author:
- Renata Żyłła; Rafał Milala; Irena Kamińska; Marcin Kudzin; Marta Gmurek; Stanisław Ledakowicz
- Source:
- Water 2019 v.11 no.3 pp. -
- ISSN:
- 2073-4441
- Subject:
- 2,5-dihydroxybenzoic acid; catechol; contact angle; energy; microfiltration; nanofiltration; oxidation; polymers; salicylic acid; scanning electron microscopy; solubility
- Abstract:
- ... The aim of the work was to determine the influence of salicylic acid (SA) oxidation products on the effectiveness of their further removal in the membrane filtration process. Two commercial polyamide-based polymer membranes, HL (GE Osmonics) and TS80 (TriSepTM), were used and characterized by SEM microscopic analysis, contact angles, and free surface energy. The products of salicylic acid oxidatio ...
- DOI:
- 10.3390/w11030541
- https://doi.org/10.3390/w11030541
- Author:
- María Ángeles Ávila‐Gálvez; Rocío García‐Villalba; Francisco Martínez‐Díaz; Beatriz Ocaña‐Castillo; Tamara Monedero‐Saiz; Adela Torrecillas‐Sánchez; Beatriz Abellán; Antonio González‐Sarrías; Juan Carlos Espín
- Source:
- Molecular nutrition & food research 2019 v.63 no.9 pp. e1801239
- ISSN:
- 1613-4125
- Subject:
- 2,5-dihydroxybenzoic acid; animal tissues; antineoplastic activity; breast neoplasms; breasts; caffeine; chemoprevention; epithelial cells; grape seed extract; lemons; mammary glands; metabolites; metabolomics; methylxanthines; neoplasm cells; olives; patients; polyphenols; pomegranates; resveratrol; surgery; theobromine; urine
- Abstract:
- ... SCOPE: Dietary polyphenols may protect against breast cancer. However, it is unknown whether polyphenols reach human malignant breast tumors in molecular forms and(or) at concentrations likely to act against cancer. METHODS AND RESULTS: Ninteen breast cancer patients consumed three capsules daily from biopsy‐confirmed diagnosis to surgery (6 ± 2 days). The capsules contained pomegranate, orange, l ...
- DOI:
- 10.1002/mnfr.201801239
- https://doi.org/10.1002/mnfr.201801239
- Author:
- Pinderpal Kaur; Sukhvinder Singh Purewal; Kawaljit Singh Sandhu; Maninder Kaur; Raj Kumar Salar
- Source:
- Journal of food measurement & characterization 2019 v.13 no.1 pp. 793-806
- ISSN:
- 2193-4126
- Subject:
- 2,5-dihydroxybenzoic acid; 4-hydroxybenzoic acid; DNA; Eleusine coracana; Panicum sumatrense; Pennisetum glaucum; Setaria italica; antioxidant activity; antioxidants; ascorbic acid; bioactive compounds; caffeic acid; carotenoids; catechin; chlorogenic acid; depolymerization; ellagic acid; epicatechin; ferulic acid; flavor; foods; gallic acid; health promotion; heat treatment; millets; minerals; nutritive value; p-coumaric acid; shelf life; sinapic acid; syringic acid; taste; temperature; texture; thermosensitivity
- Abstract:
- ... Millet grains are small seeded Kharif crop used as food and feed. Due to presence of bioactive compounds and important minerals, millets have their own importance among cereal grains. Finger millet is a mixture of gallic acid; p-hydroxybenzoic acid; gentisic acid; caffeic acid; syringic acid; p-coumaric acid; sinapic acid; salicylic acid; trans-cinnamic acid. Foxtail millet contains gallic acid; p ...
- DOI:
- 10.1007/s11694-018-9992-0
- https://doi.org/10.1007/s11694-018-9992-0
- Author:
- Zhiling Huang; Pengchen Ying; Lihui Huang; Qin Xu; Xiao-Ya Hu
- Source:
- Analytical methods 2019 v.11 no.40 pp. 5126-5133
- ISSN:
- 1759-9679
- Subject:
- 2,5-dihydroxybenzoic acid; active sites; air quality; detection limit; electrochemistry; graphene oxide; hydroxyl radicals; molecular imprinting; polymers; pyrroles; salicylic acid
- Abstract:
- ... The hydroxyl radical (˙OH) is one of the most important oxidizing species in air whose concentration indicates the air quality. In this work, an indirect method was developed to determine ˙OH based on the electrochemical signal of 2,5-dihydroxybenzoic acid (2,5-DHBA), a specific reaction product of salicylic acid and ˙OH. The molecular imprinting technique was introduced into this work to improve ...
- DOI:
- 10.1039/c9ay01414d
- https://doi.org/10.1039/c9ay01414d
11. Osteoporosis risk assessment using multilayered gold-nanoparticle thin film via SALDI-MS measurement
- Author:
- Xi-Yu Pan; Chih-Hwa Chen; Yi-Hsuan Chang; Di-Yan Wang; Yi-Cheng Lee; Chien-Chung Liou; Yu-Xian Wang; Cho-Chun Hu; Tsung-Rong Kuo
- Source:
- Analytical and bioanalytical chemistry 2019 v.411 no.13 pp. 2793-2802
- ISSN:
- 1618-2642
- Subject:
- 2,5-dihydroxybenzoic acid; absorbance; biomarkers; blood serum; desorption; heat; hydroxyproline; mass spectrometry; nanogold; osteoporosis; patients; risk assessment; signal-to-noise ratio; surface plasmon resonance; thermal conductivity; wavelengths
- Abstract:
- ... A powerful technique to detect bone biomarkers has been developed for assessment of osteoporosis at the early stage. Two-dimensional multilayered gold-nanoparticle thin film (MTF-AuNPs) was demonstrated as a promising test platform for detection of bone biomarker, hydroxyproline (HYP), measured by surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS). With strong surface plasmo ...
- DOI:
- 10.1007/s00216-019-01759-5
- https://doi.org/10.1007/s00216-019-01759-5
- Author:
- Jie He; Christopher J. Miller; Richard Collins; Dongsheng Wang; T. David Waite
- Source:
- Environmental science & technology 2019 v.54 no.2 pp. 1167-1176
- ISSN:
- 1520-5851
- Subject:
- 2,5-dihydroxybenzoic acid; activated sludge; adsorption; benzoic acid; corrosion; hydroxyl radicals; iron; littoral zone; oxidants; oxidation; pH; sediments; water treatment
- Abstract:
- ... The oxygenation of mackinawite (FeS) frequently occurs at anoxic–oxic interfaces in both natural and engineered systems such as intertidal sediment, in activated sludge in water treatment processes, and during sulfidized zero-valent iron particle corrosion. During reoxygenation events, FeS may drive a Fenton-like process leading to the production of strong oxidants though the details of this proce ...
- DOI:
- 10.1021/acs.est.9b03975
- https://doi.org/10.1021/acs.est.9b03975
- Author:
- Katherine Márquez; David Contreras; Pablo Salgado; Claudia Mardones
- Source:
- Food chemistry 2019 v.271 pp. 80-86
- ISSN:
- 0308-8146
- Subject:
- 2,5-dihydroxybenzoic acid; air; caffeic acid; electron paramagnetic resonance spectroscopy; free radicals; hydroxyl radicals; iron; oxidation; oxygen; p-coumaric acid; protocatechuic acid; syringic acid; white wines
- Abstract:
- ... Exposure of white wine to oxygen can cause detrimental effects, such as loss of sensorial characteristics. New antecedents, to the oxidation of wine, establish the importance of the formation of metallic complexes with compounds with adjacent hydroxyls. These complexes could reduce iron, promoting the formation of radicals through the Fenton reaction. The formation of hydroxyl radical (OH) induced ...
- DOI:
- 10.1016/j.foodchem.2018.07.165
- https://doi.org/10.1016/j.foodchem.2018.07.165
- Author:
- B. M. Alanis-Sánchez; S. M. Pérez-Tapia; S. Vázquez-Leyva; I. Mejía-Calvo; Z. Macías-Palacios; L. Vallejo-Castillo; C. M. Flores-Ortiz; C. Guerrero-Barajas; J. A. Cruz-Maya; J. Jan-Roblero
- Source:
- World journal of microbiology & biotechnology 2019 v.35 no.12 pp. 186
- ISSN:
- 0959-3993
- Subject:
- 2,5-dihydroxybenzoic acid; Amycolatopsis; bacteria; bacterial growth; biochemical pathways; biodegradation; biotransformation; carbon; catechol; drugs; energy; enzymes; genes; growth curves; high performance liquid chromatography; mass spectrometry; naphthalene; yeast extract
- Abstract:
- ... The pollution of aquatic environments by drugs is a problem for which scarce research has been conducted in regards of their removal. Amycolatopsis sp. Poz 14 presents the ability to biotransformation naphthalene at high efficiency, therefore, in this work this bacterium was proposed as an assimilator of naproxen and carbamazepine. Growth curves at different concentrations of naproxen and carbamaz ...
- DOI:
- 10.1007/s11274-019-2764-0
- https://doi.org/10.1007/s11274-019-2764-0
- Author:
- Zhangpei Zhu; Jiajia Shen; Dawei Wang; Chong Chen; Yangfan Xu; Huimin Guo; Dian Kang; Naoki Hamada; Jing Dong; Guangji Wang; Yan Liang
- Source:
- Analytical and bioanalytical chemistry 2019 v.411 no.5 pp. 1041-1052
- ISSN:
- 1618-2642
- Subject:
- 2,5-dihydroxybenzoic acid; crystallization; droplets; graphene oxide; homogenization; image analysis; lipids; matrix-assisted laser desorption-ionization mass spectrometry; peptides; proteins
- Abstract:
- ... The great hurdles related with matrix-assisted laser desorption/ionization (MALDI) analysis are inhomogeneous crystallization, poor reproducibility, and low sensitivity. To effectively improve the performance of MALDI mass spectrometry (MS), graphene oxide (GO) was first utilized as an auxiliary matrix of the conventional matrices, including 2,5-dihydroxybenzoic acid (DHB), α-cyano-4-hydoxycyanoci ...
- DOI:
- 10.1007/s00216-018-1532-6
- https://doi.org/10.1007/s00216-018-1532-6
- Author:
- Ronnie J.M. Lubbers; Adiphol Dilokpimol; Jaap Visser; Miia R. Mäkelä; Kristiina S. Hildén; Ronald P. de Vries
- Source:
- Biotechnology advances 2019 v.37 no.7 pp. 107396
- ISSN:
- 0734-9750
- Subject:
- 2,5-dihydroxybenzoic acid; antioxidants; bacteria; biofuels; bioplastics; catechol; energy; flavor; food preservatives; fungi; gallic acid; hydroquinone; industry; lignin; metabolic engineering; metabolism; phytomass; polysaccharides; protocatechuic acid; pyrogallol; tannins; toxicity; tricarboxylic acid cycle
- Abstract:
- ... Aromatic compounds derived from lignin are of great interest for renewable biotechnical applications. They can serve in many industries e.g. as biochemical building blocks for bioplastics or biofuels, or as antioxidants, flavor agents or food preservatives. In nature, lignin is degraded by microorganisms, which results in the release of homocyclic aromatic compounds. Homocyclic aromatic compounds ...
- DOI:
- 10.1016/j.biotechadv.2019.05.002
- https://doi.org/10.1016/j.biotechadv.2019.05.002
- Author:
- Zhangpei Zhu; Jiajia Shen; Yangfan Xu; Huimin Guo; Dian Kang; Tengjie Yu; He Wang; Wenshuo Xu; Guangji Wang; Yan Liang
- Source:
- Journal of mass spectrometry 2019 v.54 no.8 pp. 684-692
- ISSN:
- 1076-5174
- Subject:
- 2,5-dihydroxybenzoic acid; chemical species; crystallization; desorption; ginsenosides; graphene oxide; matrix-assisted laser desorption-ionization mass spectrometry; models; pharmacokinetics; rapid methods; rats; risk reduction
- Abstract:
- ... Matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry (MALDI‐TOF MS) is an excellent analytical technique for rapid analysis of a variety of molecules with straightforward sample pretreatment. The performance of MALDI‐TOF MS is largely dependent on matrix type, and the development of novel MALDI matrices has aroused wide interest. Herein, we devoted to seek more robust MALDI ...
- DOI:
- 10.1002/jms.4385
- https://doi.org/10.1002/jms.4385
- Author:
- Nahid Tavakkoli; Nasrin Soltani; Fatemeh Mohammadi
- Source:
- RSC advances 2019 v.9 no.25 pp. 14296-14301
- ISSN:
- 2046-2069
- Subject:
- 2,5-dihydroxybenzoic acid; aptasensors; bioassays; chemical species; cocaine; electrochemistry; electrodes; electron transfer; gold; models; nanogold; nanopores; oligonucleotides
- Abstract:
- ... The increasing application of aptamers in bioassays has triggered a lot of research interest for development of highly sensitive and selective sensing platforms. Herein, we report on the design of a sensitive cocaine biosensor by immobilizing the 5′-disulfide-functionalized end of an aptamer sequence on a nanoporous gold (NPG) electrode followed by the conjugation of its 3′-amino-functionalized en ...
- DOI:
- 10.1039/c9ra01292c
- https://doi.org/10.1039/c9ra01292c
- Author:
- Dorota Górny; Urszula Guzik; Katarzyna Hupert-Kocurek; Danuta Wojcieszyńska
- Source:
- Journal of environmental management 2019 v.239 pp. 1-7
- ISSN:
- 0301-4797
- Subject:
- 2,5-dihydroxybenzoic acid; Bacillus thuringiensis; biodegradation; cadmium; catechol; cobalt; drugs; enzyme activity; enzymes; ethanol; hydroxylation; metabolites; metal ions; methanol; salicylic acid
- Abstract:
- ... Bacillus thuringiensis B1 (2015b) is a bacterial strain that is able to degrade naproxen. However, the potential effect of water co-contaminations on the degradation process and its pathway have not yet been evaluated. The results of our study show that in the presence of aromatic compounds, the B1 (2015b) strain utilised naproxen with an efficiency that was similar to what it was with no aromatic ...
- DOI:
- 10.1016/j.jenvman.2019.03.034
- https://doi.org/10.1016/j.jenvman.2019.03.034
- Author:
- Tobías Schmidt De León; María L. Salum; Rosa Erra‐Balsells
- Source:
- Journal of mass spectrometry 2019 v.54 no.7 pp. 643-654
- ISSN:
- 1076-5174
- Subject:
- 2,5-dihydroxybenzoic acid; absorption; butylamine; cinnamic acid; dissociation; ionic liquids; mass spectrometry; moieties; molecular weight; oligosaccharides; peptides; sodium; sulfates
- Abstract:
- ... Cinnamic acid derivatives, particularly α‐cyano‐4‐hydroxycinnamic acid (E‐α‐cyano‐4‐hydroxycinnamic acid or (E)‐2‐cyano‐3‐(4‐hydroxyphenyl)prop‐2‐enoate; CHCA), have been extensively used especially for protein and peptide analysis. Together with the introduction of ionic liquid MALDI matrix (ILM) started the study of applications of IL prepared with CHCA and a counter organic base (ie, aliphatic ...
- DOI:
- 10.1002/jms.4375
- https://doi.org/10.1002/jms.4375