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Journal articles on the topic 'Ftir spectrum of salicylic acid'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Zelenska, Kateryna, Hiroko Kimura, Tetsuo Sasaki, Toru Aoki, and Volodymyr Gnatyuk. "Terahertz Spectroscopy Studies of Solid-State Salicylic Acid." Advanced Materials Research 1117 (July 2015): 65–68. http://dx.doi.org/10.4028/www.scientific.net/amr.1117.65.

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Molecular and lattice vibration frequencies of solid-state salicylic acid were studied in the Terahertz (THz) and Mid-Infrared (Mid-IR) ranges. The calculation of the THz and Mid-IR spectra of salicylic acid which was based on the solid-state density functional theory (DFT) was carried out. Experimental studies were conducted by THz absorbance spectroscopy and Fourier transform infrared spectroscopy (FTIR) methods. Vibrations revealed in “finger-print” spectrum of salicylic acid were compared with the typical vibrations of groups of atoms that make up organic molecules.

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2

Yau Xin, Y., and B. V. S. Lokesh. "QUANTITATIVE ANALYSIS OF ASPIRIN IN TABLETS USING ATTENUATED TOTAL REFLECTANCE FTIR WITH FULL SPECTRUM PLS ALGORITHM." INDIAN DRUGS 56, no. 10 (2019): 50–56. http://dx.doi.org/10.53879/id.56.10.11932.

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Acetyl salicylic acid (ASA) is widely used globally to treat pain, rheumatic fever and inflammation since more than a century. It is also a prototypical molecule categorized as a platelet aggregation inhibitor, that could be widely used to reduce the risk of arterial and venous thrombosis in long term therapy. Various ASA formulations are available in the market and estimation of their quantity and efficacy is of utmost importance since it is largely being produced by many pharmaceutical companies all over the world. Literature is supported with many analytical methods using UV-visible spectro

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3

Abdul Hussein, Jasim M., Saadon A. Owda, and Samaá M. Hassan. "Preparation, Characterization of A New Cis – Iodoplatin and Cis - Carboplatin Complexes and Study There Spectral, Physical and Pharmaceutical Properties." JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences 27, no. 1 (2019): 146–63. http://dx.doi.org/10.29196/jubpas.v27i1.2086.

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This search includes preparation of new cis–platin, in the form of iodin, and new two cis - carboplatin complexes {cis [Pt(4-aminoantipyrine) (NH3)2]I2 and cis[Pt (aminosalicylicacid) (NH3)2]I}, which used as anti - cancer drugs, they are prepared by using the organic ligands 4-amino salicylic acid and 4-amino anti pyrine. These complexes were characterized by using UV–Vis., FTIR, XRD and 1HNMR spectroscopic techniques . The effect of the concentration and the temperature on the molar electrical conductivity of its solutions were studied. The expiry date (half-life) for the solutions of the co

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4

Obi, Juliana Chineze, and Paul Chukwudi Osunwa. "UV and IR Characterization of Monoazo Disperse Dyes Synthesized from Aminobenzene and its Derivatives." Scholars International Journal of Chemistry and Material Sciences 5, no. 7 (2022): 122–27. http://dx.doi.org/10.36348/sijcms.2022.v05i07.001.

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The potential of amino benzene and its derivatives in the synthesis of monoazo disperse dyes was studied. The dyes were synthesized by the diazotization of amino benzene and its derivatives and subsequent coupling with salicylic acid. The synthesized dyes were subjected to UV and IR characterization and the UV-VIS absorption spectra of the dyes in methanol, ethanol and ethyl acetate revealed that the dyes have absorption bands within the visible region of the electromagnetic spectrum and that the λmax of the dyes increases with increase in polarity of the solvents. The FTIR characterization of

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5

Evangelisti, Luca, Shouyuan Tang, Biagio Velino, and Walther Caminati. "Microwave spectrum of salicylic acid." Journal of Molecular Structure 921, no. 1-3 (2009): 285–88. http://dx.doi.org/10.1016/j.molstruc.2009.01.007.

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6

Chrisyanti, Desriana, Gunawan Gunawan, and Abdul Haris. "Blue Methylene Retrieval using Silica-Salicylic Acid Modified Filtering." Jurnal Kimia Sains dan Aplikasi 21, no. 1 (2018): 19–23. http://dx.doi.org/10.14710/jksa.21.1.19-23.

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The retrieval of methylene blue using a silica-modified sulfide-salicylic acid has been carried out. Salicylate-silica-acid alloys have been prepared by comparing the four media ie filter paper, silica-filter paper, salicylic acid-filter paper and salicylic acid-silica-filter paper. This study aims to study the recovery of methylene blue using salicylic acid-modified silica filtering with various parameters on the adsorption and desorption process. The results showed that the salicylic acid-silica alloy could improve the capability of methylene blue removal. The result of pH variation on the a

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7

McDonagh, Birgitte Hjelmeland, and Gary Chinga-Carrasco. "Characterization of Porous Structures of Cellulose Nanofibrils Loaded with Salicylic Acid." Polymers 12, no. 11 (2020): 2538. http://dx.doi.org/10.3390/polym12112538.

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Bleached and unbleached pulp fibers were treated with 2,2,6,6-tetramethylpyperidine-1-oxyl (TEMPO) mediated oxidation to obtain cellulose nanofibrils (CNFs). The resulting bleached and unbleached CNFs were mixed with salicylic acid (0, 5, 10, 20 wt%) before casting and freeze-drying or 3D-printing. A series of methods were tested and implemented to characterize the CNF materials and the porous structures loaded with salicylic acid. The CNFs were characterized with atomic force microscopy and laser profilometry, and release of salicylic acid was quantified with UV-visible absorbance spectroscop

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8

Naik, S. B. Thirumalesh, M. Purushothaman, and K. B. Chandrasekhar. "Fabrication and Evaluation of Mini Tablet Filled Capsules to Treat Transient Ischemic Attack." Asian Journal of Chemistry 33, no. 1 (2020): 89–96. http://dx.doi.org/10.14233/ajchem.2021.22929.

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In this work, mini tablets filled hard gelatin capsules were fabricated for a fixed-dose therapy for transient ischemic attack (TIA). Clopidogrel besylate (CB)-75 mg and acetyl salicylic acid (ASA)-75 mg were utilized in this work. Among the mini-tablets (MTs) clopidogrel besylate, was uncoated conventional mini-tablets, whereas acetyl salicylic acid was enteric-coated. Acetyl salicylic acid gastric irritation was overcome by using Plantago ovata seed mucilage as a binder in all mini-tablets. Both types of mini-tablets were filled in hard gelatin capsules. Clopidogrel besylate and acetyl salic

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9

E., Vishala, Vadlapudi Kumar, Ruksana F., et al. "Hemolytic saponins product enhancement in Gnidia glauca (Fresen.) Gilg cell suspension cultures." Biomedicine 43, no. 01 (2023): 291–98. http://dx.doi.org/10.51248/.v43i01.2298.

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Introduction and Aim: Gnidia glauca (Fresen.) Gilg of thymelaeaceae is enlisted as an endangered plant. Hemolytic triterpenoid saponins of oleanane and ursane classes are present in G. glauca. The purpose of the present study is to increase the production of hemolytic triterpenoids in vitro using salicylic acid as an elicitor in G. glauca cell suspensions. Materials and Methods: Explants were collected and surface sterilized, then inoculated onto Murashige and Skoog medium for callus culture, further establishing suspension cultures that were treated with salicylic acid. Saponins produced in t

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10

Cecone, Claudio, Mario Iudici, Marco Ginepro, Marco Zanetti, Francesco Trotta, and Pierangiola Bracco. "Dextrin-Based Adsorbents Synthesized via a Sustainable Approach for the Removal of Salicylic Acid from Water." Nanomaterials 13, no. 20 (2023): 2805. http://dx.doi.org/10.3390/nano13202805.

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Pharmaceuticals such as salicylic acid are commonly detected in wastewater and surface waters, increasing concern for possible harmful effects on humans and the environment. Their difficult removal via conventional treatments raised the need for improved strategies, among which the development of bioderived adsorbents gained interest because of their sustainability and circularity. In this work, biobased cross-linked adsorbents, synthesized via a sustainable approach from starch derivatives, namely beta-cyclodextrins and maltodextrins, were at first characterized via FTIR-ATR, TGA, SEM, and el

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11

Nugrahani, Ilma, Billgerd Tjengal, Tutus Gusdinar, Ayano Horikawa, and Hidehiro Uekusa. "A Comprehensive Study of a New 1.75 Hydrate of Ciprofloxacin Salicylate: SCXRD Structure Determination, Solid Characterization, Water Stability, Solubility, and Dissolution Study." Crystals 10, no. 5 (2020): 349. http://dx.doi.org/10.3390/cryst10050349.

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One problem that often arises during the formulation of a dosage form is the solubility and dissolution of the active ingredients. This problem arises in ciprofloxacin, which is a BCS class IV fluoroquinolone antibiotic. A pseudopolymorph is a kind of polymorph in which the number of hydrates is different. In this study, a new pseudopolymorph comprised of ciprofloxacin and salicylic acid was found, namely the salt ciprofloxacin salicylate 1.75 hydrate form. This new solid phase was analyzed by Fourier-transform infrared spectroscope (FTIR), Raman spectroscopy, and thermal analysis and proven b

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12

Younis, Sara, and Nozad Hussein. "Formulation and evaluation of salicylic acid hydrogel based on hydrotropic solubility enhancement technique." Zanco Journal of Medical Sciences 28, no. 2 (2024): 164–77. http://dx.doi.org/10.15218/zjms.2024.17.

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Background and objective: Salicylic acid (SA) has keratolytic activities and it is used topically to treat dandruff and seborrheic dermatitis. The hydrotropic phenomenon in pharmaceutical preparations is utilized to enhance the solubility of water-insoluble drug molecules that promoted to prepare the salicylic acid as a hair gel for local effect and it can extend its keratolytic action for a longer period compared to the salicylic acid solution. Methods: Preformulation study was performed to exclude any unwanted chemical interaction between SA and excipients using Fourier-transform infrared sp

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13

Wang, Jingjing, Junjie Ren, Qinglin Tang, et al. "An Efficient Cyan Emission from Copper (II) Complexes with Mixed Organic Conjugate Ligands." Materials 15, no. 5 (2022): 1719. http://dx.doi.org/10.3390/ma15051719.

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Copper (II) complexes containing mixed ligands were synthesized in dimethyl formamide (DMF). The intense cyan emission at an ambient temperature is observed for solid copper (II) complexes with salicylic acid and a 12% quantum yield with a fluorescent lifetime of approximately 10 ms. Hence, copper (II) complexes with salicylic acid are excellent candidates for photoactive materials. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) reveal that the divalent copper metal centers coordinate with the nitrogen and oxygen lone pairs of conjugate ligands. XPS b

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14

Deng, Kui Lin, Chun Yuan Huang, Xiao Bo Ren, et al. "A pH-Sensitive Poly (2-(Acryloyloxy) Propanoic Acid) Hydrogel and its Drug Release Behaviors." Advanced Materials Research 455-456 (January 2012): 901–6. http://dx.doi.org/10.4028/www.scientific.net/amr.455-456.901.

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A novel pH-sensitive poly (2-(acryloyloxy) propanoic acid) hydrogel (PAPA) synthesized from lactic acid by radical polymerization has been investigated in this work. The structure of prepared monomer2-(acryloyloxy) propanoic acid) (APA) has been characterized by FTIR and1H-NMR measurements. PAPA hydrogel demonstrated an obvious pH sensitivity in its swelling in the range of 4-7 pH of phosphate buffer solution (PBS). The rapid response of the hydrogel makes it suitable for drug delivery application. Here, salicylic acid (SA) selected as a model drug, thein-vitrodrug release as a function of pH

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15

Li, Wen Xian, Jing Zhang, Bo Yang Ao, Shu Yan Feng, and Xiao Dong Xin. "Fluorescence Enhancement of Europium(III) Perchlorate by Salicylic Acid on Phenyl-Naphthoylmethyl Sulfoxide Complex and Luminescence Mechanism." Advanced Materials Research 634-638 (January 2013): 2466–69. http://dx.doi.org/10.4028/www.scientific.net/amr.634-638.2466.

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A novel ligand, phenyl-naphthoylmethyl sulfoxide, was synthesized. Its novel ternary complex and a novel binary complex had been synthesized (salicylic acid as the second ligand), and characterized by elemental analysis, molar conductivity, coordination titration analysis, FTIR and TG-DSC. The fluorescence spectra, fluorescence lifetime and phosphorescence spectra were also discussed.

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16

Arasaretnam, S., and U. P. Dilshani Jayarathna. "Synthesis, Characterization, and Metal Adsorption Properties of Formaldehyde-Based Terpolymeric Resins Derived from Anthranilic Acid, Salicylic Acid, and Catechol." Journal of Chemistry 2020 (December 7, 2020): 1–7. http://dx.doi.org/10.1155/2020/8843162.

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Two formaldehyde-based terpolymeric resins (anthranilic acid-catechol-formaldehyde (ACF) and salicylic acid-catechol-formaldehyde (SCF)) have been synthesized by condensing anthranilic acid with catechol and salicylic acid with catechol at 80 ± 5°C using dimethylformamide as a solvent. The resins were characterized by spectral analysis using Fourier-transform infrared (FTIR) spectroscopy. The physical-chemical properties of the resins have been studied. The exchange behavior of various metal ions, namely, Cd2+, Cr3+, Ca2+, and Mg2+, towards the synthesized resins has been studied depending on

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17

Covelli, Verdiana, Antonietta Cozzolino, Paola Rizzo, et al. "Salicylic Acid Release from Syndiotactic Polystyrene Staple Fibers." Molecules 28, no. 13 (2023): 5095. http://dx.doi.org/10.3390/molecules28135095.

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Films and fibers of syndiotactic polystyrene (sPS), being amorphous or exhibiting nanoporous crystalline (NC) or dense crystalline phases, were loaded with salicylic acid (SA), a relevant non-volatile antimicrobial molecule. In the first section of the paper, sPS/SA co-crystalline (CC) δ form is characterized, mainly by wide angle X-ray diffraction (WAXD) patterns and polarized Fourier transform infrared (FTIR) spectra. The formation of sPS/SA δ CC forms allows the preparation of sPS fibers even with a high content of the antibacterial guest, which is also retained after repeated washing proce

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18

Liang, Bingbing, Han Wang, Ce Yang, et al. "Salicylic Acid Is Required for Broad-Spectrum Disease Resistance in Rice." International Journal of Molecular Sciences 23, no. 3 (2022): 1354. http://dx.doi.org/10.3390/ijms23031354.

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Rice plants contain high basal levels of salicylic acid (SA), but some of their functions remain elusive. To elucidate the importance of SA homeostasis in rice immunity, we characterized four rice SA hydroxylase genes (OsSAHs) and verified their roles in SA metabolism and disease resistance. Recombinant OsSAH proteins catalyzed SA in vitro, while OsSAH3 protein showed only SA 5-hydroxylase (SA5H) activity, which was remarkably higher than that of other OsSAHs that presented both SA3H and SA5H activities. Amino acid substitutions revealed that three amino acids in the binding pocket affected SA

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19

N.R, Welekar, Wasnik T.S, and Lamdhade G. T. "Preparation and Characterization of 4:1 (EC-PVC) Ethyl Cellulose - Polyvinyl Chloride Polyblends Thin Films." International Journal of Research in Science and Technology 13, no. 01 (2023): 87–96. http://dx.doi.org/10.37648/ijrst.v13i01.010.

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The present study is focused on preparation and characterization of 4:1 (EC-PVC) Ethyl Cellulose - Polyvinyl Chloride polyblends thin films of pure and doping with different weight ratio of Salicylic Acid (SA) and the isothermal evaporation technique used for its preparation. In order to investigate properties of the prepared samples were characterized by Fourier Transform Infrared Spectroscopy (FTIR) techniques.

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20

Ouafy, Hayat EL, Mouna Aamor, Mustapha Oubenali, Mohamed Mbarki, Aziz EL Haimouti, and Tarik EL Ouafy. "Theoretical study of the stability and reactivity of salicylic acid isomers by the DFT method." Current Chemistry Letters 11, no. 2 (2022): 183–90. http://dx.doi.org/10.5267/j.ccl.2022.2.002.

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The FT-IR spectrum of salicylic acid (SA) was studied in the region 10-4000 cm-1. The optimized molecular geometry and fundamental vibration frequencies are interpreted using structural optimizations based on the Functional Density Theory (DFT) method. Additionally, we used B3LYP / 6-311G (d, p) to determine the chemical descriptor, the ionization potential (I), the electron affinity (A), the chemical potential (μ), the chemical hardness (η). Nonlinear optical descriptors (NLO) such as dipole moment (μ), polarizability (α), first hyperpolarizability (β) and second hyperpolarizability (γ), 3D m

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21

Saengchan, Chanon, Piyaporn Phansak, Kanjana Thumanu, et al. "Resistance Induction by Salicylic Acid Formulation in Cassava Plant against Fusarium solani." Plant Pathology Journal 38, no. 3 (2022): 212–19. http://dx.doi.org/10.5423/ppj.oa.02.2022.0019.

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Fusarium root rot caused by the soil-borne fungus Fusarium solani is one of the most important fungal diseases of cassava in Thailand, resulting in high yield losses of more than 80%. This study aimed to investigate if the exogenous application of salicylic acid formulations (Zacha) can induce resistance in cassava against Fusarium root rot and observe the biochemical changes in induced cassava leaf tissues through synchrotron radiation based on Fourier-transform infrared (SR-FTIR) microspectroscopy. We demonstrated that the application of Zacha11 prototype formulations could induce resistance

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22

Isa, M. I. N., and A. K. Arof. "Salicylic Acid and Dibuthyl Phatalate (DBP) Interaction in PMMA-Based Gel Electrolytes." Materials Science Forum 517 (June 2006): 294–0. http://dx.doi.org/10.4028/www.scientific.net/msf.517.294.

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A gel electrolyte system was prepared by dissolving poly(methyl methacrylate) (PMMA) in ethylene carbonate (EC) and propylene carbonate (PC) doped with salicylic acid (SA) and plasticized with dibutyl phthalate (DBP). The composition of the electrolyte was 35 wt% EC-30 wt% PC-5 wt% SA-5wt% DBP-25 wt% PMMA. The presence of a hump at ~760 cm-1 and a shoulder at 1155 cm-1 in the spectrum of SA-DBP indicate the protonation of DBP. The effect of these bands can also be observed in the spectrum of the gel. Hence, SA has dissociated producing H+ which then interacts datively at the oxygen sites of DB

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Bian, Chuanhong, Yabing Duan, Jueyu Wang, et al. "Validamycin A Induces Broad-Spectrum Resistance Involving Salicylic Acid and Jasmonic Acid/Ethylene Signaling Pathways." Molecular Plant-Microbe Interactions® 33, no. 12 (2020): 1424–37. http://dx.doi.org/10.1094/mpmi-08-20-0211-r.

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Validamycin A (VMA) is an aminoglycoside antibiotic used to control rice sheath blight. Although it has been reported that VMA can induce the plant defense responses, the mechanism remains poorly understood. Here, we found that reactive oxygen species (ROS) bursts and callose deposition in Arabidopsis thaliana, rice (Oryza sativa L.), and wheat (Triticum aestivum L.) were induced by VMA and were most intense with 10 μg of VMA per milliliter at 24 h. Moreover, we showed that VMA induced resistance against Pseudomonas syringae, Botrytis cinerea, and Fusarium graminearum in Arabidopsis leaves, in

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24

Bamigboye, Mercy, Osunniran Wahab, Shosanya Deborah, Ejidike Ikechukwu, and Ayuba Mustapha. "Synthesis and Characterization of Mixed Schiff Base- Salicylic Acid Metal Complexes." EDUCATUM Journal of Science, Mathematics and Technology 11, no. 2 (2024): 1–7. http://dx.doi.org/10.37134/ejsmt.vol11.2.1.2024.

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Four-metal (II) complexes of a new Schiff base [M(NaNp)(Sal)Cl2] where M=Mn (II), Ni (II), Cu (II), and Fe (II) were synthesized. The Schiff base and its complexes have been synthesized. They have been characterized by Fourier-transform infrared spectroscopy, Ultraviolet spectroscopy, Powder X-ray diffraction, and Scanning electron microscopy. The Fourier-transform infrared spectra of the Schiff base and its metal complexes were compared to determine the functional groups involved in the bonding. Results from FTIR spectra indicated that the Schiff bases are tetrahedral in geometry except for t

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Wang, Wenming, Alessandra Devoto, John G. Turner, and Shunyuan Xiao. "Expression of the Membrane-Associated Resistance Protein RPW8 Enhances Basal Defense Against Biotrophic Pathogens." Molecular Plant-Microbe Interactions® 20, no. 8 (2007): 966–76. http://dx.doi.org/10.1094/mpmi-20-8-0966.

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The powdery mildew resistance genes RPW8.1 and RPW8.2 from Arabidopsis differ from the other isolated plant resistance (R) genes in their predicted protein domains and their resistance spectrum. The two homologous RPW8 genes encode small proteins featuring a predicted amino-terminal transmembrane anchor domain and a coiled-coil domain and confer resistance to a broad spectrum of powdery mildews. Here, we show that Arabidopsis plants expressing the RPW8 genes have enhanced resistance to another biotrophic pathogen, Hyaloperonospora parasitica, raising the possibility that the RPW8 genes may fun

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26

Yaschenko, N. N., S. V. Zhitar, and E. G. Zinovjeva. "Determination of phenolic compounds in medicinal preparations by galvanostatic coulometry." Chimica Techno Acta 8, no. 1 (2021): 20218110. http://dx.doi.org/10.15826/chimtech.2021.8.1.10.

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In this work, the possibility of using reactions of electrogenerated titrants with phenolic compounds was studied and a method for their coulometric determination in medicaments by galvanostatic coulometry was developed. The research objects were: rutin, salicylic acid and drugs containing phenolic compounds such as «Ascorutin», «Salicylic Paste» and «Salicylic Ointment» of Russian manufacture. Electrogenerated halogens (Cl2, Br2 and I2) and hexacyanoferrate(III)-ions were used as titrants. It was found that for the quantitative determination of phenolic acids, the optimal reagent is electroge

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Bamigboye, Mercy O., Ikechukwu P. Ejidike, Racheal O. Awolope, Joshua A. Obaleye, and Favour K. Ejimofor. "Preparation, Characterization, and Antimicrobial Activities of Mixed Ibuprofen-Salicylic Acid Metal-Drug Complexes." Tanzania Journal of Science 47, no. 5 (2021): 1835–43. http://dx.doi.org/10.4314/tjs.v47i5.28.

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Most variants of bacteria are resistant to traditional antibiotics which are organic. To overcome the growing infections, bacteria resistant infections, and multiple drug resistance (MDR) rates, transition metals with biological importance were coordinated to organic ligands (Ibuprofen and Salicylic acid) with anti-inflammatory properties. In this study, metal complexes of mixed Ibuprofen and Salicylic acid were prepared using a standard method to give of the type [M(Ibu)(Sal)X] (where M = Fe2+, Ni2+, Cu2+, and X = Cl2, Ibu = Ibuprofen, Sal = Salicylic acid). The complexes were characterized b

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Bélanger, P. M., and A. Atitsé-Gbeassor. "Effect of nonsteroidal anti-inflammatory drugs on the microsomal monooxygenase system of rat liver." Canadian Journal of Physiology and Pharmacology 63, no. 7 (1985): 798–803. http://dx.doi.org/10.1139/y85-132.

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The effect of acetylsalicylic acid, ibuprofen, indomethacin, ketoprofen, naproxen, phenylbutazone, and salicylic acid on the microsomal oxidative drug metabolism of rat liver was studied. Pretreatment of the rats with pharmacologic doses of acetylsalicylic acid, indomethacin, and ketoprofen decreased both the demethylase and hydroxylase activities of rat liver microsomes. These effects were paralleled by decreases in microsomal cytochrome P-450 content. The rate of the microsomal reactions was increased after pretreatment with ibuprofen and naproxen but only the former increased the concentrat

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Uzun, Gamze, та Asgar Kayan. "Zirconium Complexes Bearing Methyl/tButyl Salicylate and Their Catalytic Activity on ε-Caprolactone". Reactions 5, № 3 (2024): 594–606. http://dx.doi.org/10.3390/reactions5030029.

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In this study, methyl/tbutyl salicylate-bearing zirconium complexes (C1–C8) were prepared by the reaction of zirconium (IV) propoxide/butoxide with salicylic acid, 3-methylsalicylic acid, 4-methylsalicylic acid, and 3,5-di-tert-butylsalicylic acid in alcohols, respectively. All these complexes (C1–C8) were characterized by 1H NMR, 13C NMR, FTIR, mass spectroscopy (MS), elemental, and thermogravimetric analyses (TGA). These complexes were utilized as catalysts in the ring-opening polymerization (ROP) of Ɛ-caprolactone and were very effective. Polycaprolactone (PCL) was characterized by 1H-NMR,

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Rekker, R. F., and W. Th Nauta. "The U.V. absorption spectra of p-amino-salicylic acid and some related compounds: II. Discussion of the U.V. absorption spectrum of p.amino-salicylic acid)." Recueil des Travaux Chimiques des Pays-Bas 75, no. 3 (2010): 279–89. http://dx.doi.org/10.1002/recl.19560750307.

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Rao, T. V. R. K., Chanchal Kumari, and Arjun Kumar. "Microbiocidal Studies of Some Azo Dyes." Research Journal of Chemistry and Environment 28, no. 4 (2024): 25–29. http://dx.doi.org/10.25303/284rjce025029.

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Microbiocidal potential of some azo dyes has been studied. Polydentate azo dyes viz. 1-(2’-carbo xyphenylazo)-2-naphthol, 5-(2’-carboxyphenylazo)-8-hydroxyquinoline, 5-(2’-carboxyphenylazo)salicylic acid and 4-(2’-carboxyphenylazo)resorcinol were synthesized and characterized by elemental analysis, infrared (FTIR) and 1H NMR spectral studies. The dyes were screened for antibacterial sensitivities against the Gram positive bacteria Staphylococcus aureus and Gram negative bacteria Enterobacter aerogenes and Escherichia coli at four concentrations of the dyes viz. 0.5, 1.0, 1.5 and 2.0 mg/ml, in

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Zyburtowicz-Ćwiartka, Karolina, Anna Nowak, Anna Muzykiewicz-Szymańska, et al. "Impact of Electromagnetic Field on the Physicochemical Properties, Permeability, and Accumulation of Salicylic Acid." Applied Sciences 15, no. 13 (2025): 7606. https://doi.org/10.3390/app15137606.

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Transdermal drug delivery offers a non-invasive route for the systemic and localized administration of therapeutics; however, the skin’s barrier function limits its efficiency. This study investigates the application of various electromagnetic field (EMF) configurations to enhance the transdermal delivery of salicylic acid, a model compound with moderate lipophilicity and ionizability. Samples were exposed to pulsed, oscillating, static, and rotating magnetic fields, and their effects on physicochemical properties, thermal stability, skin permeation, and accumulation were evaluated. Structural

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Zhang, Liping, Shengnian Wu, Nan Zhang, Ruihan Yao, and Eryong Wu. "Study on Chromaticity Removal from Mineral Processing Wastewater with Salicylic Hydroxamic Acid by Granular Activated Carbon Catalyzed Ozonation." Minerals 11, no. 4 (2021): 359. http://dx.doi.org/10.3390/min11040359.

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Salicylic hydroxamic acid is a novel flotation reagent used in mineral processing. However, it impacts the flotation wastewater leaving behind high chromaticity which limits its reuse and affects discharge for mining enterprises. This study researched ozonation catalyzed by the granular activated carbon (GAC) method to treat the chromaticity of the simulated mineral processing wastewater with salicylic hydroxamic acid. The effects of pH value, ozone (O3) concentration, GAC dosage, and reaction time on chromaticity and chemical oxygen demand (CODCr) removal were discussed. The results of indivi

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Sedghiniya, Sima, Janet Soleimannejad, and Jan Janczak. "The salt–cocrystal spectrum in salicylic acid–adenine: the influence of crystal structure on proton-transfer balance." Acta Crystallographica Section C Structural Chemistry 75, no. 4 (2019): 412–21. http://dx.doi.org/10.1107/s2053229619003127.

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At one extreme of the proton-transfer spectrum in cocrystals, proton transfer is absent, whilst at the opposite extreme, in salts, the proton-transfer process is complete. However, for acid–base pairs with a small ΔpK a (pK a of base − pK a of acid), prediction of the extent of proton transfer is not possible as there is a continuum between the salt and cocrystal ends. In this context, we attempt to illustrate that in these systems, in addition to ΔpK a, the crystalline environment could change the extent of proton transfer. To this end, two compounds of salicylic acid (SaH) and adenine (Ad) h

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Tan, T. L., E. C. Looi, K. T. Lua, A. G. Maki, J. W. C. Johns та M. Noel. "FTIR Spectrum of the ν2 Band of Deuterated Nitric-Acid (DNO3)". Journal of Molecular Spectroscopy 166, № 1 (1994): 97–106. http://dx.doi.org/10.1006/jmsp.1994.1175.

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Kubicki, James D., Mika J. Itoh, Lynette M. Schroeter, and Sabine E. Apitz. "Bonding Mechanisms of Salicylic Acid Adsorbed onto Illite Clay: An ATR−FTIR and Molecular Orbital Study." Environmental Science & Technology 31, no. 4 (1997): 1151–56. http://dx.doi.org/10.1021/es960663+.

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Georgescu, Mona, Viorica Meltzer, Ioana Stănculescu, and Elena Pincu. "Thermal Behavior of the Nimesulide-Salicylic Acid Eutectic Mixtures Prepared by Mechanosynthesis and Recrystallization." Materials 14, no. 24 (2021): 7715. http://dx.doi.org/10.3390/ma14247715.

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Nimesulide, salicylic acid and their binary mixtures were studied by differential scanning calorimetry (DSC) and Fourier Transform Infrared spectroscopy (FTIR). The study of such systems is a promising and viable approach for solving the problem of poor solubility of materials in general and drug systems in particular. All areas of human activity are inextricably linked to materials, and thus, the study presented in the paper and not reported in the literature is very important and provides useful data for those working in various fields. The eutectic mixtures were obtained by mechanosynthesis

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Bencivenni, Luigi, Andrea Margonelli, Alessandro Mariani, Andrea Pieretti, and Stella Nunziante Cesaro. "Combined FTIR Matrix Isolation and Density Functional Studies of Indole-3-Pyruvic Acid Molecule. Spectroscopic Evidence of Gas-Phase Tautomerism." ISRN Physical Chemistry 2012 (May 9, 2012): 1–11. http://dx.doi.org/10.5402/2012/243741.

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The vibrational spectrum of matrix-isolated indole-3-pyruvic acid has been studied aiming to obtain information about the structures of the stable vapour-phase forms of the molecule. Together with results from theoretical density functional calculations, the spectroscopic data enable to undertake an attribution for most of the observed bands. The FTIR spectrum of crystalline indole-3-pyruvic acid has been compared with that of matrix isolation study.

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Gao, Yuye, Xie-an Yu, Bing Wang, et al. "Screening and identification of antioxidant active ingredients from red wine via spectrum-effect relationship analysis." Quality Assurance and Safety of Crops & Foods 15, no. 1 (2023): 52–62. http://dx.doi.org/10.15586/qas.v15i1.1071.

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Red wine was a prominent constituent of diets across the globe and modern pharmacological studies showed that red wine had the main function of antioxidant. However, the reported screening methods for active ingredients were inefficient and insensitive. In this research, 35 batches of red wine were used to establish the chromatography fingerprint, which were further utilized to screen and identify the antioxidant active ingredients through spectrum-effect relationship analysis. Indeed, the antioxidant capacity of red wine was evaluated by total antioxidant capacity assay kit (ABTS method). Aft

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Wawro, Dariusz, Andrzej Bodek, and Kazimiera Henryka Bodek. "Starch Film as a Carrier of a Model Drug Substance from the Group of Non-Steroidal Anti-Inflammatory Drugs." Fibres and Textiles in Eastern Europe 26, no. 6(132) (2018): 102–13. http://dx.doi.org/10.5604/01.3001.0012.5166.

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The article describes the production of starch film as a carrier of a model drug substance from the group of non-steroidal anti-inflammatory drugs (NSAIDs). An analgesic/anti- inflammatory drug was put into aqueous starch solution, and next a film was formed. The following solid drug substances were included in the tests: acetylsalicylic acid, salicylic acid, ibuprofen lysine salt, naproxen in the form of acid, and sodium salt. Solutions were obtained from ibuprofen lysine salt and naproxen sodium, whereas the other drugs enabled to obtain aqueous suspensions. Such a drug substance was mixed w

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Pan, Hongwei, Zonglin Li, Jia Yang, et al. "The effect of MDI on the structure and mechanical properties of poly(lactic acid) and poly(butylene adipate-co-butylene terephthalate) blends." RSC Advances 8, no. 9 (2018): 4610–23. http://dx.doi.org/10.1039/c7ra10745e.

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Krzaczek, Tadeusz, and Lech Urbaniak. "Studies on phenolic acids variation in Central European Pinus species 1. Five Polish populations of Pinus mugo Turra and some related forms." Acta Societatis Botanicorum Poloniae 54, no. 4 (2014): 429–41. http://dx.doi.org/10.5586/asbp.1985.037.

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Phenolic acids were investigated in the needles of eight different pine populations, five of which were <em>Pinus mugo</em>, two -- <em>P. silvestris</em> and one a critical form described by Neumann as <em>P. uliginosa</em>. Twenty different phenolic acids were detected. Six were discovered in pine needles for the first time (salicylic acid, gentisic acid, γ-resorcylic acid, o-hydroxyphenylacetic acid, β-resorcylic acid, p-hydroxyphenylacetic acid). Each of the investigated taxons was shown to exhibit a characteristic spectrum of phenolic acids. The critica

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Tiwow, Vistarani Arini, Meytij Jeanne Rampe, Henny Lieke Rampe, and Anastasya Apita. "POLA INFRAMERAH ARANG TEMPURUNG KELAPA HASIL PEMURNIAN MENGGUNAKAN ASAM." CHEMISTRY PROGRESS 14, no. 2 (2021): 116. http://dx.doi.org/10.35799/cp.14.2.2021.37191.

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Kelapa merupakan salah satu tanaman industri yang memegang peranan penting dalam perekonomian Indonesia. Bagian kelapa yang memiliki nilai ekonomis yang tinggi adalah tempurung kelapa. Penelitian ini bertujuan untuk mengkaji pola spektrum inframerah arang hasil pemurnian menggunakan asam klorida, asam asetat, dan asam nitrat. Tempurung kelapa dipirolisis pada suhu ± 300oC selama 2 jam selanjutnya dilakukan pemurnian dengan tiga jenis pelarut yaitu HCl, CH3COOH, dan HNO3. Karakter masing-masing arang hasil pemurnian tersebut dianalisis menggunakan Fourier Transform Infrared (FTIR). Spektrum FTI

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Thepbandit, Wannaporn, Narendra Kumar Papathoti, Jayasimha Rayalu Daddam, et al. "Identification of Salicylic Acid Mechanism against Leaf Blight Disease in Oryza sativa by SR-FTIR Microspectroscopic and Docking Studies." Pathogens 10, no. 6 (2021): 652. http://dx.doi.org/10.3390/pathogens10060652.

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The present study was to investigate the application and mechanism of salicylic acid (SA) as SA-Ricemate for the control of leaf blight disease using a Synchrotron Radiation-based Fourier-Transform Infra-Red (SR-FTIR) microspectroscopy and docking studies. After treating rice plants cv. KDML 105 with SA-Ricemate, the leaves were inoculated with Xanthomonas oryzae pv. oryzae, the causal agent of leaf blight, and disease severity were assessed. The leaves were also used to detect changes in endogenous SA content. The results indicated that SA-Ricemate, as an activated compound, reduced disease s

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KRISHNA, C. JOSHI, JAIN RENUKA, and NISHITH SAROJ. "Reactions of 3-Arylimino-2H-indol-2-ones with o-Mercaptobenzoic Acid and Salicylic Acid : Synthesis of Novel Spiro[2H-1,3-benzothiazine-2,3'-[3H]indole]-2,4( 1' H,3H)-diones." Journal of Indian Chemical Society Vol. 68, Nov 1991 (1991): 625–27. https://doi.org/10.5281/zenodo.6154499.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004 <em>Manuscript received 6 March 1991, accepted 7 November 1991</em> Reactions of 3-Arylimino-2<em>H</em>-indol-2-ones with o-Mercaptobenzoic Acid and Salicylic Acid : Synthesis of Novel Spiro[2<em>H</em>-1,3-benzothiazine-2,3'-[3<em>H</em>]indole]-2,4( 1' H, 3<em>H</em>)-diones.

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Aytar, Erdi Can, and Yasemin Özdener Kömpe. "PHENOLIC AND ANTIOXIDANT PROFILE: FTIR AND LC-MS ANALYSES OF SERAPIAS ORIENTALIS." Ankara Universitesi Eczacilik Fakultesi Dergisi 48, no. 3 (2024): 8. http://dx.doi.org/10.33483/jfpau.1448197.

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Objective: The objective of this study is to characterize the aerial parts of S. orientalis using Fourier Transform Infrared (FTIR) spectroscopy, evaluate the phenolic content and antioxidant activity of seeds, stems, and flowers, and conduct quantitative analysis of phenolic compounds using LC-MS/MS. Material and Method: Fourier Transform Infrared (FTIR) spectroscopy was employed to characterize the aerial parts of S. orientalis. The analysis focused on identifying various functional groups such as -OH vibrations associated with polysaccharides, C-H vibrations from lipids and lignin compounds

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Manish, Bhatt, Ujaskumar Ashvinbhai Patel, Abbas Shakir Hussain Sabunwala Ali, and Saini Rishabh. "Spectrum of Renal Calculi Composition in Southern Rajasthan Using Infrared Spectroscopy." International Journal of Toxicological and Pharmacological Research 13, no. 9 (2023): 63–66. https://doi.org/10.5281/zenodo.11079963.

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<strong>Introduction:</strong> The aim of this study was to evaluate the chemical composition of urinary stones and pattern of changes according to the patient’s age in Southern Rajasthan using infrared spectroscopy (IRS). <strong>Materials and Methods:</strong> A prospective study of 500 urolithiasis patients was carried out in a tertiary care center from August 2021 to August 2023. Chemical composition of urinary stones was analyzed using IR spectroscopy, and a subgroup study based on the patient’s age was done (8–12 years – Group A, 13–18 years &

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Sobiesiak, Magdalena, Marta Grochowicz, and Joanna Osypiuk Tomasik. "Sorption Properties of Polydivinylbenzene Polymers towards Phenolic Compounds and Pharmaceuticals." Colloids and Interfaces 3, no. 1 (2019): 19. http://dx.doi.org/10.3390/colloids3010019.

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Highly cross-linked polymers are commonly used in purification and separation techniques because of their many useful features. In order to better adjust their porosity to adsorption of specific compounds, methods like surface functionalization or imprinting are used. In this work, a series of highly cross-linked polydivinylbenzenes (pDVB) were prepared using a suspension method. Toluene was applied as a pore-forming diluent. Some part of toluene (1 mL) was replaced with phenol (F), 2,4,6-trichlorophenol (T) or their mixture (M) to prepare polymers with porosity more suitable for phenols sorpt

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Chindaprasirt, Prinya, and Kiatsuda Somna. "Effect of Addition of Microsilica and Nanoalumina on Compressive Strength and Products of High Calcium Fly Ash Geopolymer with Low Concentration NaOH." Advanced Materials Research 1103 (May 2015): 29–36. http://dx.doi.org/10.4028/www.scientific.net/amr.1103.29.

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This research aims to study the effect of addition of microsilica and nanoalumina on compressive strength and products of high calcium fly ash geopolymer with low NaOH concentration. Microsilica and nanoalumina were added in the mixture in order to adjust the Si/Al ratios which resulted in the change of product form of geopolymer pastes. Geopolymer was synthesized using high calcium fly ash and 2 molar sodium hydroxide (NaOH). Microsilica and/or nanoalumina were added as additional sources of silica and alumina in the mixtures. Compressive strengths of pastes were investigated at the age of 7,

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Dias, M., S. L. Raghavan, and J. Hadgraft. "ATR-FTIR spectroscopic investigations on the effect of solvents on the permeation of benzoic acid and salicylic acid through silicone membranes." International Journal of Pharmaceutics 216, no. 1-2 (2001): 51–59. http://dx.doi.org/10.1016/s0378-5173(01)00577-4.

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