1
|
Mani R, Peltonen L, Strachan CJ, Karppinen M, Louhi-Kultanen M. Nonclassical Crystallization and Core-Shell Structure Formation of Ibuprofen from Binary Solvent Solutions. CRYSTAL GROWTH & DESIGN 2023; 23:236-245. [PMID: 36624777 PMCID: PMC9817074 DOI: 10.1021/acs.cgd.2c00971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 12/09/2022] [Indexed: 06/17/2023]
Abstract
Liquid-liquidphase separation (LLPS) or dense liquid intermediates during the crystallization of pharmaceutical molecules is common; however, their role in alternative nucleation mechanisms is less understood. Herein, we report the formation of a dense liquid intermediate followed by a core-shell structure of ibuprofen crystals via nonclassical crystallization. The Raman and SAXS results of the dense phase uncover the molecular structural ordering and its role in nucleation. In addition to the dimer formation of ibuprofen, which is commonly observed in the solution phase, methyl group vibrations in the Raman spectra show intermolecular interactions similar to those in the solid phase. The SAXS data validate the cluster size differences in the supersaturated solution and dense phase. The focused-ion beam cut image shows the attachment of nanoparticles, and we proposed a possible mechanism for the transformation from the dense phase into a core-shell structure. The unstable phase or polycrystalline core and its subsequent dissolution from inside to outside or recrystallization by reversed crystal growth produces the core-shell structure. The LLPS intermediate followed by the core-shell structure and its dissolution enhancement unfold a new perspective of ibuprofen crystallization.
Collapse
Affiliation(s)
- Rajaboopathi Mani
- Department
of Chemical and Metallurgical Engineering, Aalto University, FI-00076 Aalto (Espoo), Finland
- Department
of Physics & Nanotechnology, SRM Institute
of Science & Technology, Kattankulathur 603203, Tamilnadu, India
| | - Leena Peltonen
- Drug
Research Program, Division of Pharmaceutical Chemistry and Technology, University of Helsinki, 00014 Helsinki, Finland
| | - Clare J. Strachan
- Drug
Research Program, Division of Pharmaceutical Chemistry and Technology, University of Helsinki, 00014 Helsinki, Finland
| | - Maarit Karppinen
- Department
of Chemistry and Materials Science, Aalto
University, FI-00076 Aalto (Espoo), Finland
| | - Marjatta Louhi-Kultanen
- Department
of Chemical and Metallurgical Engineering, Aalto University, FI-00076 Aalto (Espoo), Finland
| |
Collapse
|
2
|
Joshi HC, Antonov L. Excited-State Intramolecular Proton Transfer: A Short Introductory Review. Molecules 2021; 26:molecules26051475. [PMID: 33803102 PMCID: PMC7963178 DOI: 10.3390/molecules26051475] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 12/03/2022] Open
Abstract
In this short review, we attempt to unfold various aspects of excited-state intramolecular proton transfer (ESIPT) from the studies that are available up to date. Since Weller’s discovery of ESIPT in salicylic acid (SA) and its derivative methyl salicylate (MS), numerous studies have emerged on the topic and it has become an attractive field of research because of its manifold applications. Here, we discuss some critical aspects of ESIPT and tautomerization from the mechanistic viewpoint. We address excitation wavelength dependence, anti-Kasha ESIPT, fast and slow ESIPT, reversibility and irreversibility of ESIPT, hydrogen bonding and geometrical factors, excited-state double proton transfer (ESDPT), concerted and stepwise ESDPT.
Collapse
Affiliation(s)
- Hem C. Joshi
- Institute for Plasma Research, Bhat, Gandhinagar 382428, India;
| | - Liudmil Antonov
- Institute of Electronics, Bulgarian Academy of Sciences, 1784 Sofia, Bulgaria
- Correspondence:
| |
Collapse
|
3
|
Azaldegui C, Aguilar G, Enriquez S, Madonna C, Parish Fisher C, Burks R. Benzoic acid derivatives as luminescent sublimation dyes in cyanoacrylate fuming of latent fingerprints. J Forensic Sci 2021; 66:1085-1093. [PMID: 33547641 DOI: 10.1111/1556-4029.14678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/21/2020] [Accepted: 01/11/2021] [Indexed: 12/01/2022]
Abstract
Development of latent prints employing cyanoacrylate ester (CA) can be a multistep process including CA fuming and subsequent fluorescent staining to produce fingerprints of sufficient contrast for comparison work. To enable a single-step CA fuming-staining process, a selection of fluorophores have been developed as sublimation dyes in CA fuming. A greater array of such luminescent sublimation dyes would allow users greater flexibility in selecting a particular dye-CA combination to best suit their processing needs. Toward this end, six benzoic acid derivatives were evaluated for use as luminescent sublimation dyes under elementary CA fuming conditions using a single non-porous surface type and an inexpensive handheld UV lamp for excitation. Two benzoic acid derivatives, 2-hydroxybenzoic acid (salicylic acid) and 2-aminobenzoic acid (anthranilic acid), were identified as new potential luminescent sublimation dyes with stained fingerprints excited at 254 nm. The fluorescence intensity and stability of prints produced via the sublimation of CA with 2-hydroxybenzoic acid and 2-aminobenzoic acid were evaluated over approximately six weeks using image and statistical analysis.
Collapse
Affiliation(s)
- Christopher Azaldegui
- Department of Chemistry, School of Natural Sciences, St. Edward's University, Austin, TX, USA.,Program in Chemical Biology, Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Guadalupe Aguilar
- Department of Forensic Science, School of Natural Sciences, St. Edward's University, Austin, TX, USA.,Travis County Medical Examiner's Office, Austin, TX, USA
| | - Sarahi Enriquez
- Department of Chemistry, School of Natural Sciences, St. Edward's University, Austin, TX, USA.,Endeavor DNA, El Paso, TX, USA
| | - Chris Madonna
- Department of Chemistry, School of Natural Sciences, St. Edward's University, Austin, TX, USA.,North Texas Fire Academy, Rockwall, TX, USA
| | - Casie Parish Fisher
- Department of Forensic Science, School of Natural Sciences, St. Edward's University, Austin, TX, USA
| | - Raychelle Burks
- Department of Chemistry, School of Natural Sciences, St. Edward's University, Austin, TX, USA.,Department of Chemistry, College of Arts and Science, American University, Washington, DC, USA
| |
Collapse
|
4
|
Lavrik NL, Mulloev NU. Efficiency of the intermolecular interaction of salicylic acid neutral form and monoanion with Cd 2+ ion studied by methods of absorption and fluorescence. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 190:336-341. [PMID: 28941888 DOI: 10.1016/j.saa.2017.07.050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 02/11/2017] [Accepted: 07/27/2017] [Indexed: 06/07/2023]
Abstract
The methods of absorption and fluorescence were used to study the efficiency of the interaction between salicylic acid derivatives SAD (neutral SA form and SA monoanion) and Cd2+ ions (in CdBr2 salt) within the range рН=1.5÷8. The efficiency was determined from the change in both the absorption band contour and the fluorescence intensity of various SAD forms. It has been established that depending on the SAD form, the addition of CdBr2 to a starting solution leads to the formation of additional absorption for both the shorter wave lengths in the absorption spectrum of the neutral form (at рН<3) and the longer wave lengths in the absorption spectrum for the НSal- monoanion (at рН>4). In the fluorescence spectra, the intensity was observed to increase for the neutral SAD form (at рН<3) and to decrease for the НSal- monoanion (at рН>4) after addition of CdBr2. The spectral changes were interpreted in the framework of common notions about the effect of three physicochemical factors that determine the interaction between the SAD and the Cd2+ ion and affect the parameters of absorption and fluorescence spectra. These factors are: (1) the decrease in рН after addition of CdBr2 to the SAD solution, (2) the decrease in the efficiency of the Н-bonding of SAD molecules to the water ones, and (3) the existence of electrostatic ion-ion interaction between the НSal- monoanion and the Cd2+ ion. The bimolecular fluorescence quenching constants Kq of НSal- monoanion fluorescence quenching by the Cd2+ ion appeared to be substantially less than those of the quenching which would follow either the dynamic (diffusion) or the concentration (static) mechanisms.
Collapse
Affiliation(s)
- N L Lavrik
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of Russian Academy of Science, Novosibirsk, Russian Federation.
| | - N U Mulloev
- V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of Russian Academy of Science, Novosibirsk, Russian Federation
| |
Collapse
|
5
|
Tierney TB, Rasmuson ÅC, Hudson SP. Size and Shape Control of Micron-Sized Salicylic Acid Crystals during Antisolvent Crystallization. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.7b00181] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Teresa B. Tierney
- Synthesis and Solid State
Pharmaceutical Centre, Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, Ireland
| | - Åke C. Rasmuson
- Synthesis and Solid State
Pharmaceutical Centre, Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, Ireland
| | - Sarah P. Hudson
- Synthesis and Solid State
Pharmaceutical Centre, Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, Ireland
| |
Collapse
|
6
|
Gu Q, Su P, Xia Y, Yang Z, Trindle CO, Knee JL. Quantitative probing of subtle interactions among H-bonds in alpha hydroxy carboxylic acid complexes. Phys Chem Chem Phys 2017; 19:24399-24411. [DOI: 10.1039/c7cp03917d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The alpha OH stretching frequency may be affected upon complexing with water and formic acid.
Collapse
Affiliation(s)
- Quanli Gu
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
- Chemistry Department
| | - Peifeng Su
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, and College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen
- China
| | - Yong Xia
- State Key Laboratory of Precision Spectroscopy
- School of Physics and Materials Science
- East China Normal University
- Shanghai 200062
- China
| | - Zhijun Yang
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Carl O. Trindle
- Chemistry Department
- University of Virginia
- Charlottesville
- USA
| | | |
Collapse
|
7
|
Li X, Jiang Z, Wu Y, Zhang H, Cheng Y, Guo R, Wu H. High-performance composite membranes incorporated with carboxylic acid nanogels for CO2 separation. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2015.07.065] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
8
|
Gu Q, Knee JL. Communication: Spectroscopic measurement of the binding energy of a carboxylic acid-water dimer. J Chem Phys 2012; 136:171101. [DOI: 10.1063/1.4711862] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Quanli Gu
- Chemistry Department, University of Virginia, Charlottesville, Virginia 22904, USA
- Chemistry Department, Wesleyan University, Middletown, Connecticut 06459, USA
| | - J. L. Knee
- Chemistry Department, Wesleyan University, Middletown, Connecticut 06459, USA
| |
Collapse
|
9
|
Güneş E, Parlak C. DFT, FT-Raman and FT-IR investigations of 5-methoxysalicylic acid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 82:504-512. [PMID: 21840249 DOI: 10.1016/j.saa.2011.07.089] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Revised: 07/25/2011] [Accepted: 07/26/2011] [Indexed: 05/31/2023]
Abstract
FT-IR and FT-Raman spectra of 5-methoxysalicylic acid (5MeOSA) have been experimentally reported in the region of 4000-10 cm(-1) and 4000-50 cm(-1), respectively. The optimized geometric parameters, conformational equilibria, normal mode frequencies and corresponding vibrational assignments of 5MeOSA (C(8)H(8)O(4)) are theoretically examined by means of B3LYP hybrid density functional theory (DFT) method together with 6-31++G(d,p) basis set. Furthermore, reliable vibrational assignments have made on the basis of potential energy distribution (PED) calculated and the thermodynamics functions, highest occupied and lowest unoccupied molecular orbitals (HOMO and LUMO) of 5MeOSA have been predicted. Calculations are employed for different conformations of 5MeOSA, both in gas phase and in solution. Solvent effects are investigated using chloroform and dimethylsulfoxide. All results indicate that B3LYP method is able to provide satisfactory results for predicting vibrational frequencies and the structural parameters, vibrational frequencies and assignments, IR and Raman intensities of 5MeOSA are solvent dependent.
Collapse
Affiliation(s)
- Esma Güneş
- Department of Physics, Dumlupınar University, 43100 Kütahya, Turkey
| | | |
Collapse
|
10
|
Wang J, Jiang S, Zhang H, Lv W, Yang X, Jiang Z. Enhancing proton conduction and methanol barrier performance of sulfonated poly(ether ether ketone) membrane by incorporated polymer carboxylic acid spheres. J Memb Sci 2010. [DOI: 10.1016/j.memsci.2010.08.026] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
11
|
Tian M, Adams B, Wen J, Matthew Asmussen R, Chen A. Photoelectrochemical oxidation of salicylic acid and salicylaldehyde on titanium dioxide nanotube arrays. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2009.01.077] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
12
|
Ko YG, Ma PX. Surface-grafting of phosphates onto a polymer for potential biomimetic functionalization of biomaterials. J Colloid Interface Sci 2009; 330:77-83. [PMID: 18977490 PMCID: PMC2645349 DOI: 10.1016/j.jcis.2008.10.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2008] [Revised: 10/07/2008] [Accepted: 10/09/2008] [Indexed: 11/30/2022]
Abstract
In the human body, phosphate groups play important roles in signaling and the biological functions of proteins and peptides. Despite the importance of phosphate groups, polymer surfaces have not been directly grafted with phosphate groups by chemical reactions because the usual organic solvents used to graft phosphate groups can dissolve or swell polymers. We focused this study on grafting phosphate groups onto a poly(ethylene-co-acrylic acid) (PEAA) surface in an aqueous solution. O-phospho L-serine and O-phosphoethanolamine were grafted on PEAA surfaces to introduce phosphate groups by activating carboxylic acid groups of PEAA using N-hydroxysuccinimide (NHS) and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) in an aqueous environment. X-ray photoelectron spectroscopy (XPS) was used to elucidate the process by which surface grafting occurs and the process that the phosphate group is cleaved into a phosphate ion and a hydrolyzed molecule at high pH. It was found that under appropriate reaction conditions the phosphate groups could be successfully grafted on the polymer surfaces. The phosphate-grafted polymer surfaces showed lower water contact angles than the initial polymer surfaces likely due to their highly mobile and hydrophilic phosphate side groups. This work demonstrates a technique to successfully graft phosphate groups onto organic polymer surfaces in a biocompatible aqueous environment, which may open new avenues to functionalizing synthetic polymeric and natural macromolecule derived biomaterials.
Collapse
Affiliation(s)
- Young Gun Ko
- Department of Biologic and Materials Sciences, University of Michigan, 1011 North University Ave., Ann Arbor, MI 48109-1078
| | - Peter X. Ma
- Department of Biologic and Materials Sciences, University of Michigan, 1011 North University Ave., Ann Arbor, MI 48109-1078
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109
- Macromolecular Science and Engineering Center, University of Michigan, Ann Arbor, MI 48109
| |
Collapse
|
13
|
Misra V, Mishra H. Photoinduced proton transfer coupled with energy transfer: Mechanism of sensitized luminescence of terbium ion by salicylic acid doped in polymer. J Chem Phys 2008; 128:244701. [PMID: 18601359 DOI: 10.1063/1.2918284] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In the present work, excited state intramolecular proton transfer (ESIPT) in salicylic acid (SA) monoanion and subsequent sensitization of Tb(3+) ion in polyvinyl alcohol (PVA) have been studied. The study has been carried out both by steady state and time domain fluorescence measurement techniques at room temperature. It is found that the SA completely ionizes and exists as monoanion in PVA. It exhibits a large Stokes shifted blue emission (10 000 cm(-1)) due to ESIPT and shows a decay time of 6.85 ns. On the other hand, Tb(3+) ion shows a very weak green emission and a decay time of approximately 641 mus in PVA film. Upon incorporating Tb(3+) ion in SA doped PVA film, both intensity and decay time of SA decrease and sensitized emission from Tb(+3) ion along with 3.8 mus rise time is observed. Energy transfer is found to take place both from excited singlet as well as triplet states. A brief description of the properties of the present system from the viewpoint of luminescent solar collector material is addressed.
Collapse
Affiliation(s)
- Vinita Misra
- Photophysics Laboratory, Department of Physics, Kumaon University, Nainital 263001, India
| | | |
Collapse
|