1
|
Paul P, Saha S, Biradha K. Differentiating aliphatic and aromatic alcohols using triazine-based supramolecular organogelators: end group-specific selective gelation with chain length of alcohols. SOFT MATTER 2024; 20:2568-2574. [PMID: 38411472 DOI: 10.1039/d4sm00017j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Supramolecular gels have an extensive range of potential applications, out of which stimuli-responsive materials are a topic of contemporary research. Gels being kinetically entrapped materials can be tuned to different forms using external chemical stimuli. In this context, three different triazine gelators, each containing a unique end group, were examined for gelation in various solvent systems. Nevertheless, the gelation was limited to only alcoholic solvents, suggesting that the hydrogen bonds between the gelating solvent and gelator play a crucial role in gelation. Further, it was found that these gelators could gelate only with aliphatic alcohols, which could be degelled easily using aromatic alcohols. The three gelators exhibited distinct gelation of aliphatic alcohols based on their end groups. The gelator with the polar-aromatic end group (C5H4N) was found to gelate with lighter alcohols, whereas that with the nonpolar aromatic end group (C6H5) was found to prefer higher alcohols. The MGC and Tgel values were also found to depend on the alkyl chain length/branching of the alcohols. The crystal structure of one of the gelators provides insights into the model structure of the gels. Cyclohexanol was the only solvent that could produce gels with all three of the as-synthesised gelators. The process of degelation by aromatic alcohols was monitored at different points of the disassembly process by rheological and morphological measurements to understand the extent of controlled degelation. These gels have great potential for use in controlled drug delivery and chemical sensing, among other areas.
Collapse
Affiliation(s)
- Priya Paul
- Department of Chemistry, Indian Institute of Technology Kharagpur, 721302, India.
| | - Subhajit Saha
- Department of Chemistry, Indian Institute of Technology Kharagpur, 721302, India.
| | - Kumar Biradha
- Department of Chemistry, Indian Institute of Technology Kharagpur, 721302, India.
| |
Collapse
|
2
|
Han W, Tian H, Qiang T, Wang H, Wang P. Fluorescence color change of supramolecular polymer networks controlled by crown ether-cation recognition. Chemistry 2024; 30:e202303569. [PMID: 38066712 DOI: 10.1002/chem.202303569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Indexed: 01/12/2024]
Abstract
We report a fluorescent supramolecular polymer networks (SPNs) system based on crown ether-cation recognition. The polymer side chains bear ammonium cations, which can be recognized by host molecules with a B15C5 unit and a quinoline group at each end. The quinoline group makes the host molecule exhibit blue fluorescence. After the formation of SPNs, the recognition of the crown ether-cation transforms the blue fluorescence into yellow fluorescence. The accompanying fluorescence color change during the formation of SPNs makes it with potential applications in the fields of display, printing, information storage, and bioimaging.
Collapse
Affiliation(s)
- Weiwei Han
- College of Chemistry and Chemical Engineering, Shaanxi Engineering Research Center of Green Low-carbon Energy Materials and Processes, Xi'an Shiyou University, No.18, East Dianzi 2nd Road, Xi'an, Shaanxi, 710065, China
| | - Hailan Tian
- College of Chemistry and Chemical Engineering, Shaanxi Engineering Research Center of Green Low-carbon Energy Materials and Processes, Xi'an Shiyou University, No.18, East Dianzi 2nd Road, Xi'an, Shaanxi, 710065, China
| | - Taotao Qiang
- Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Hu Wang
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas, 78712, United States
| | - Pi Wang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, P.R. China
| |
Collapse
|
3
|
Ding S, Chen X, Ouyang B, Yang B, Wang W, Wang Y. Exploring Diacylglycerol Oil-Based Oleogels as Effective Stabilizers in Peanut Butter: Performance, Structural Insights, and Sensory Evaluation. J Oleo Sci 2024; 73:135-145. [PMID: 38311404 DOI: 10.5650/jos.ess23122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024] Open
Abstract
In the pursuit of reducing oil separation in peanut butter, oleogels synthesized from diacylglycerol (DAG)-rich peanut oils, using glycerol monostearate (GMS) as the gelator, were examined as alternative stabilizers. In comparison to triacylglycerol (TAG)-rich peanut oils, the DAG oil-based oleogels exhibited better oil-binding capacities across increasing GMS concentrations. Intriguingly, thermal and rheological assessments pointed to a weaker network structure in DAG oil oleogels, as evidenced by their lower crystallization temperatures and reduced viscoelastic parameters (G' and G''). Insight from infrared spectroscopy revealed that this could stem from heightened intermolecular hydrogen bonding between the DAG oil and the gelator. When applied to peanut butter, DAG oil oleogels demonstrated efficacy in minimizing oil separation. Extended storage trials affirmed the long-term stability of peanut butter formulations incorporating these oleogels. Furthermore, sensory evaluations by panelists underscored favorable impressions, suggesting potential consumer acceptance. Overall, this study illuminates the promising role of DAG oleogels as effective, alternative stabilizers in peanut butter formulations.
Collapse
Affiliation(s)
- Siliang Ding
- College of Bioscience and Bioengineering, South China University of Technology
| | - Xiaohan Chen
- College of Food Science and Technology, South China University of Technology
| | - Bo Ouyang
- State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences
| | - Bo Yang
- College of Bioscience and Bioengineering, South China University of Technology
| | - Weifei Wang
- Institute of Sericulture and Agricultural Products Processing, Guangdong Academy of Agricultural Sciences
| | - Yonghua Wang
- College of Food Science and Technology, South China University of Technology
- Guangdong Yue-shan Special Nutrition Technology Co., Ltd
| |
Collapse
|
4
|
Vujičić NŠ, Sajko JS, Brkljačić L, Radošević P, Jerić I, Kurečić I. Self-Healing Oxalamide Organogelators of Vegetable Oil. Gels 2023; 9:699. [PMID: 37754380 PMCID: PMC10528235 DOI: 10.3390/gels9090699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/26/2023] [Accepted: 08/26/2023] [Indexed: 09/28/2023] Open
Abstract
The aim of this study was to assess the gelling potential of chiral oxalamide derivatives in vegetable oils. Special emphasis was given to the potential applications of the examined oil gels as sustained delivery systems and as fat substitutes in food products. The applicability of oil gelators is envisaged in food, cosmetics, and the pharmaceutical industry. The regulations requiring the elimination of saturated fats and rising concerns among consumers health motivated us to investigate small organic molecules capable of efficiently transforming from liquid oil to a gel state. The oxalamide organogelators showed remarkable gelation efficiency in vegetable oils, thermal and mechanical stability, self-healing properties, and a long period of stability. The physical properties of the gels were analysed by TEM microscopy, DSC calorimetry, and oscillatory rheology. The controlled release properties of acetylsalicylic acid, ibuprofen, and hydrocortisone were analysed by the LC-MS method. The influence of the oil type (sunflower, soybean, and olive oil) on gelation efficiency of diverse oxalamide derivatives was examined by oscillatory rheology. The oxalamide gelators showed thermoreversible and thixotropic properties in vegetable oils with a minimum gelation concentration of just 0.025 wt%. The substitution of palm fats with gelled sunflower oil applied in cocoa and milk spreads at gelator concentrations lower than 0.2 wt% have shown promising viscoelastic properties compared to that of the original food products.
Collapse
Affiliation(s)
- Nataša Šijaković Vujičić
- Division of Organic Chemistry, Ruđer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia;
| | - Josipa Suć Sajko
- Laboratory for Biomimetic Chemistry, Ruđer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia; (J.S.S.); (L.B.); (I.J.); (I.K.)
| | - Lidija Brkljačić
- Laboratory for Biomimetic Chemistry, Ruđer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia; (J.S.S.); (L.B.); (I.J.); (I.K.)
| | - Petra Radošević
- Division of Organic Chemistry, Ruđer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia;
| | - Ivanka Jerić
- Laboratory for Biomimetic Chemistry, Ruđer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia; (J.S.S.); (L.B.); (I.J.); (I.K.)
| | - Ivona Kurečić
- Laboratory for Biomimetic Chemistry, Ruđer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia; (J.S.S.); (L.B.); (I.J.); (I.K.)
| |
Collapse
|
5
|
Ghanbari E, Picken SJ, van Esch JH. Design Rules for Binary Bisamide Gelators: toward Gels with Tailor-Made Structures and Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:12182-12195. [PMID: 37578393 PMCID: PMC10469460 DOI: 10.1021/acs.langmuir.3c01487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/26/2023] [Indexed: 08/15/2023]
Abstract
This study intends to develop design rules for binary mixture of gelators that govern their assembly behavior and subsequently explore the impact of their supramolecular assembly patterns on the gels' rheological properties. To achieve these goals, nBA gelators with odd and even parities [n-methylene spacers between the amide groups (n = 5-10) and 17 carbons at each end] were blended at different ratios. Such bisamides with simple structures were selected to study because their different spacer lengths offer the possibility to have matching or non-matching hydrogen bonds. The results show that the assembly behavior of binary mixtures of bisamide gelators is the same in the solid and gel states. Binary mixtures of gelators, which only differ two methylene moieties in the spacer length, form compounds and co-assemble into fibers and sheets observed for (5BA)1(7BA)1 and (6BA)1(8BA)1 mixtures, respectively. Binary gelator mixtures of the same parity and a larger spacer length difference still lead to mixing for the odd parity couple (5BA)1(9BA)1), but to partial phase separation for the even parity mixture (6BA)1(10BA)1. Binary mixtures of gelators of different parities gave complete phase separation in the solid state, and self-sorted gels consisting of discrete fibers and sheets in the gels of (5BA)3(6BA)1 and (5BA)3(10BA)1. The even-even binary gels (20 wt %) consisting of co-assembled sheets show higher G' than odd-odd binary gels (20 wt %) consisting of co-assembled fibers. In general, the self-sorting of odd and even molecules into the separate primary structures results in a dramatic decrease of G' compared to the co-assembled gels (20 wt %), except for (5BA)1(9BA)1 gel (20 wt %). It might be due to larger woven spheres in (5BA)1(9BA)1 gel (20 wt %), which probably have a less entangled gel network.
Collapse
Affiliation(s)
- Elmira Ghanbari
- Advanced Soft Matter (ASM) Group, Chemical
Engineering Department, Faculty of Applied Science (TNW), Delft University of Technology, 2629 HZ, Delft, The Netherlands
| | - Stephen J. Picken
- Advanced Soft Matter (ASM) Group, Chemical
Engineering Department, Faculty of Applied Science (TNW), Delft University of Technology, 2629 HZ, Delft, The Netherlands
| | - Jan H. van Esch
- Advanced Soft Matter (ASM) Group, Chemical
Engineering Department, Faculty of Applied Science (TNW), Delft University of Technology, 2629 HZ, Delft, The Netherlands
| |
Collapse
|
6
|
Ghanbari E, Chen Z, Padmanabhan P, Picken SJ, van Esch JH. Supramolecular Arrangement and Rheological Properties of Bisamide Gels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:10913-10924. [PMID: 37492983 PMCID: PMC10413945 DOI: 10.1021/acs.langmuir.3c01100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 07/12/2023] [Indexed: 07/27/2023]
Abstract
We report a systematic study of the gelation behavior of nBA gelators in xylene, with odd and even n-methylene spacers between the amide groups (n = 5-10) and 17 carbons at each end. The melting temperatures (Tm0) of nBA gels are obtained from fitting our DSCN(T) model to the experimental DSC data. The found Tm0 of nBA gels is about 35 °C lower than Tm0 of the pure nBA gelators. This is reasonably well explained by a simple model combining theories of Flory-Huggins and Gibbs free energy of melting (FHM model). We attribute this depression to an increase in entropy upon melting of the gel due to mixing with the solvent. The odd-even alternation in Tm0 of nBA gels, which was also found for the nBA gelators, indicates that the solid structures inside the gels are somewhat similar. This was studied using XRD: similar 00l reflections were found in the XRD patterns of all nBA gels and their nBA gelators. For even nBA gels, the same reflections in the 19-25° (2θ) region confirm that the sheetlike supramolecular structure of the gels is analogous to the lamellar structure of the solid gelators. For odd nBA gels, a slight difference in the reflections around 20-25° (2θ) implies a somewhat different side-by-side packing of odd nBA gels compared to the solid state. This variation is found for all the odd gels, and indeed, they show distinctly different morphologies compared to the even nBA gels. The possible effect of this on the rheological properties is discussed using some inspiration from the Halpin-Tsai model for composites where nBA gels are considered to be analogous to composite materials. The change of the storage modulus (G') with the shape factor of woven fibers and sheets in nBA gels (20 wt %) indicates that a rheological odd-even effect might indeed be present.
Collapse
Affiliation(s)
- Elmira Ghanbari
- Advanced Soft Matter (ASM)
Group, Chemical Engineering Department, Faculty of Applied Science
(TNW), Delft University of Technology, 2629 HZ Delft, The Netherlands
| | - Zian Chen
- Advanced Soft Matter (ASM)
Group, Chemical Engineering Department, Faculty of Applied Science
(TNW), Delft University of Technology, 2629 HZ Delft, The Netherlands
| | - Pooja Padmanabhan
- Advanced Soft Matter (ASM)
Group, Chemical Engineering Department, Faculty of Applied Science
(TNW), Delft University of Technology, 2629 HZ Delft, The Netherlands
| | - Stephen J. Picken
- Advanced Soft Matter (ASM)
Group, Chemical Engineering Department, Faculty of Applied Science
(TNW), Delft University of Technology, 2629 HZ Delft, The Netherlands
| | - Jan H. van Esch
- Advanced Soft Matter (ASM)
Group, Chemical Engineering Department, Faculty of Applied Science
(TNW), Delft University of Technology, 2629 HZ Delft, The Netherlands
| |
Collapse
|
7
|
Ghanbari E, Krishnamurthy A, Picken SJ, Klop EA, Bannenberg LJ, van Esch J. Molecular Arrangement and Thermal Properties of Bisamide Organogelators in the Solid State. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:15782-15795. [PMID: 36417899 PMCID: PMC9776524 DOI: 10.1021/acs.langmuir.2c02679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/14/2022] [Indexed: 06/16/2023]
Abstract
The crystal structure and phase behavior of bisamide gelators are investigated using differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy, X-ray diffraction (XRD), and molecular modeling, aiming at a better understanding of bisamide gel systems. A homologous series of bisamide model compounds (nBAs) was prepared with the (CH2)n spacer between the two amide groups, where n varies from 5 to 10, and with two symmetric C17 alkyl tails. With increasing spacer length, the thermal properties show a clear odd-even effect, which was characterized using our newly developed analytical model DSCN(T). Using XRD, all studied nBA compounds turn out to have a layer-like structure. The XRD patterns of the odd BA series are very similar but show marked differences compared to the XRD patterns of the even series, which in turn are very similar. The odd-membered 5BA molecules are nearly perpendicular to the stacked layers, as described by a pseudo-orthorhombic unit cell, whereas the even-membered 6BA molecules are tilted at an angle with respect to the layer normal, as described by a triclinic unit cell. In both the odd and even series, the inter-layer interaction is the van der Waals interaction. The 6BA hydrogen bonding scheme is very similar to that of Nylon 6,10 α, unlike the 5BA H bonding scheme. The packing of the C17 alkyl tails in the 5BA layers is similar to polyethylene, and unlike 6BA. The slightly higher crystalline density of 6BA (1.038 g cm-3) as compared to 5BA (1.018 g cm-3) explains the higher melting point, higher enthalpy of fusion, and the observed shift of N-H stretch bands to higher wave numbers. The structural differences observed between the odd and even BA series reflect the different structure-directing effect of parallel versus antiparallel amide hydrogen bonding motifs. These differences underlie the observed odd-even effect in the thermal properties of nBA compounds.
Collapse
Affiliation(s)
- Elmira Ghanbari
- Delft
University of Technology, Delft2629 HZ, The Netherlands
| | | | | | - Enno A. Klop
- Teijin
Aramid Research and Innovation Centre, P.O. Box 5153, 6802 EDArnhem, The Netherlands
| | | | - Jan van Esch
- Delft
University of Technology, Delft2629 HZ, The Netherlands
| |
Collapse
|
8
|
Probing the supramolecular assembly in solid, solution and gel phase in uriede based thiazole derivatives and its potential application as iodide ion sensor. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
9
|
Kovač V, Kodrin I, Radošević K, Molčanov K, Adhikari B, Kraatz HB, Barišić L. Oxalamide-Bridged Ferrocenes: Conformational and Gelation Properties and In Vitro Antitumor Activity. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00661] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Veronika Kovač
- Department of Chemistry and Biochemistry, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Ivan Kodrin
- Department of Organic Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102A, 10000 Zagreb, Croatia
| | - Kristina Radošević
- Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Krešimir Molčanov
- Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
| | - Bimalendu Adhikari
- Department of Chemistry, National Institute of Technology, Rourkela, Sundargarh 769008, Odisha, India
| | - Heinz-Bernhard Kraatz
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, Ontario M1C 1A4, Canada
- Department of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario M5S 3H6, Canada
| | - Lidija Barišić
- Department of Chemistry and Biochemistry, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia
| |
Collapse
|
10
|
Yang D, Jin C, Kang H. Vertical Alignment of Liquid Crystal on Sustainable 2,4-Di- tert-butylphenoxymethyl-Substituted Polystyrene Films. Polymers (Basel) 2022; 14:1302. [PMID: 35406176 PMCID: PMC9002882 DOI: 10.3390/polym14071302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/11/2022] [Accepted: 03/21/2022] [Indexed: 02/04/2023] Open
Abstract
We synthesized sustainable 2,4-di-tert-butylphenoxymethyl-substituted polystyrenes (PDtBP#, # = 88, 68, 35, and 19, where # is molar percent contents of 2,4-di-tert-butylphenoxymethyl moiety), using post-polymerization modification reactions in order to study their liquid crystal (LC) alignment behaviors. In general, LC cells fabricated using polymer film with higher molar content of 2,4-di-tert-butylphenoxymethyl side groups showed vertical LC alignment behavior. LC alignment behavior in LC cell was related to the surface energy of the polymer alignment layer. For example, when the total surface energy value of the polymer layer was smaller than about 29.4 mJ/m2, vertical alignment behaviors were observed, generated by the nonpolar 2,4-di-tert-butylphenoxymethyl moiety with long and bulky carbon groups. Orientation stability was observed at 200 °C in the LC cells fabricated using PDtBP88 as the LC alignment layer. Therefore, as a natural compound modified polymer, PDtBP# can be used as a candidate LC alignment layer for environmentally friendly applications.
Collapse
Affiliation(s)
| | | | - Hyo Kang
- BK-21 Four Graduate Program, Department of Chemical Engineering, Dong-A University, 37 Nakdong-Daero 550 Beon-gil, Saha-gu, Busan 49315, Korea; (D.Y.); (C.J.)
| |
Collapse
|
11
|
Park JH, Kim MH, Seo ML, Lee JH, Jung JH. In Situ Supramolecular Gel Formed by Cyclohexane Diamine with Aldehyde Derivative. Polymers (Basel) 2022; 14:400. [PMID: 35160389 PMCID: PMC8840383 DOI: 10.3390/polym14030400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/14/2022] [Accepted: 01/18/2022] [Indexed: 02/05/2023] Open
Abstract
Low-molecular-weight gels have great potential for use in a variety of fields, including petrochemicals, healthcare, and tissue engineering. These supramolecular gels are frequently metastable, implying that their properties are kinetically controlled to some extent. Here, we report on the in situ supramolecular gel formation by mixing 1,3-cyclohexane diamine (1) and isocyanate derivative (2) without any catalysis at room temperature in various organic solvents. A mixture of building blocks 1 and 2 in various organic solvents, dichloromethane, tetrahydrofuran, chloroform, toluene, and 1,4-dioxane, resulted in the stable formation of supramolecular gel at room temperature within 60-100 s. This gel formation was caused by the generation of urea moieties, which allows for the formation of intermolecular hydrogen-bonding interactions via reactions 1 and 2. In situ supramolecular gels demonstrated a typical entangled fiber structure with a width of 600 nm and a length of several hundred μm. In addition, the supramolecular gels were thermally reversible by heating and cooling. The viscoelastic properties of supramolecular gels in strain and frequency sweets were enhanced by increasing the concentration of a mixed 1 and 2. Furthermore, the supramolecular gels displayed a thixotropic effect, indicating a thermally reversible gel.
Collapse
Affiliation(s)
- Jae-Hyeon Park
- Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea; (J.-H.P.); (M.-H.K.)
| | - Min-Hye Kim
- Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea; (J.-H.P.); (M.-H.K.)
| | - Moo-Lyong Seo
- Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea; (J.-H.P.); (M.-H.K.)
| | - Ji-Ha Lee
- Chemical Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Jong-Hwa Jung
- Department of Chemistry, Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea; (J.-H.P.); (M.-H.K.)
| |
Collapse
|
12
|
Nicotinamide-based supergelator self-assembling via asymmetric hydrogen bonding NH⋯OC and H⋯Br - pattern for reusable, moldable and self-healable nontoxic fuel gels. J Colloid Interface Sci 2021; 603:182-190. [PMID: 34186397 DOI: 10.1016/j.jcis.2021.06.071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 06/10/2021] [Accepted: 06/11/2021] [Indexed: 11/23/2022]
Abstract
HYPOTHESIS Development of highly efficient low-molecular weight gelators (LMWGs) for safe energy storage materials is of great demand. Energy storage materials as fuel gels are often achieved by construction of hybrid organic frameworks capable of multiple noncovalent interactions in self-assembly, which allow tuning required properties at the molecular level by altering individual building blocks of the LMWG. However, LMWGs have limited rechargeable capability due to their chemical instability. EXPERIMENTS We designed, synthesized and characterized a novel, bio-inspired chiral gemini amphiphile derivative 1 containing N-hexadecyl aliphatic tails from quaternized nicotinamide-based segment and bromide anion showing supergelation ability in water, alcohols, aprotic polar and aromatic solvents, with critical gel concentrations as low as 0.1 and 0.035 wt% in isopropanol and water, respectively. FINDINGS Nanostructural architecture of the network depended on the solvent used and showed variations in size and shape of 1D nanofibers. Supergelation is attributed to a unique asymmetric NH⋯OC, H⋯Br- hydrogen bonding pattern between H-2 hydrogens from nicotinamide-based segment, amide functional groups from chiral trans-cyclohexane-1,2-diamide-based segment and bromide ions, supporting the intermolecular amide-amide interactions appearing across one strand of the self-assembly. Gels formed from 1 exhibit high stiffness, self-healing, moldable and colorable properties. In addition, isopropanol gels of 1 are attractive as reusable, shape-persistent non-toxic fuels maintaining the chemical structure with gelation efficiency for at least five consecutive burning cycles.
Collapse
|
13
|
Ortuño RM. Carbocycle-Based Organogelators: Influence of Chirality and Structural Features on Their Supramolecular Arrangements and Properties. Gels 2021; 7:gels7020054. [PMID: 34062755 PMCID: PMC8162357 DOI: 10.3390/gels7020054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 12/31/2022] Open
Abstract
The rational design and engineer of organogel-based smart materials and stimuli-responsive materials with tuned properties requires the control of the non-covalent forces driving the hierarchical self-assembly. Chirality, as well as cis/trans relative configuration, also plays a crucial role promoting the morphology and characteristics of the aggregates. Cycloalkane derivatives can provide chiral chemical platforms allowing the incorporation of functional groups and hydrophobic structural units able for a convenient molecular stacking leading to gels. Restriction of the conformational freedom imposed by the ring strain is also a contributing issue that can be modulated by the inclusion of flexible segments. In addition, donor/acceptor moieties can also be incorporated favoring the interactions with light or with charged species. This review offers a perspective on the abilities and properties of carbocycle-based organogelators starting from simple cycloalkane derivatives, which were the key to establish the basis for an effective self-assembling, to sophisticated polycyclic compounds with manifold properties and applications.
Collapse
Affiliation(s)
- Rosa M Ortuño
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
| |
Collapse
|
14
|
Yamagishi A, Umemura Y, Tamura K, Yajima T, Sato H. Langmuir-Blodgett Films of Chiral Perfluorinated Gelators: Effects of Chirality and Chain Length on Two-Dimensional Behavior. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200245] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Akihiko Yamagishi
- Faculty of Medicine, Toho University, Tokyo 143-8540, Japan
- National Institute of Materials Science, Tsukuba, Ibaraki 305-0044, Japan
| | - Yasushi Umemura
- Department of Applied Chemistry, National Defense Academy, Kanagawa 239-8686, Japan
| | - Kenji Tamura
- National Institute of Materials Science, Tsukuba, Ibaraki 305-0044, Japan
| | - Tomoko Yajima
- Faculty of Science, Department of Chemistry, Ochanomizu University, Tokyo 112-8610, Japan
| | - Hisako Sato
- Graduate School of Science and Engineering, Ehime University, Matsuyama, Ehime 790-8577, Japan
| |
Collapse
|
15
|
Jo S, Ahn H, Park SY, Lee TS. Synthesis of gelation-induced emissive, o-phenylazonaphthol-based organogel and its responsiveness to fluoride anion. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131895] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
16
|
Tómasson DA, Ghosh D, Kurup MRP, Mulvee MT, Damodaran KK. Evaluating the role of a urea-like motif in enhancing the thermal and mechanical strength of supramolecular gels. CrystEngComm 2021. [DOI: 10.1039/d0ce01194k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Enhanced thermal and mechanical strength in semicarbazone gels with a urea-like motif obtained by modifying the hydrogen bonding motif of the hydrazone compound.
Collapse
Affiliation(s)
| | - Dipankar Ghosh
- Department of Chemistry
- Science Institute
- University of Iceland
- 107 Reykjavík
- Iceland
| | | | | | - Krishna K. Damodaran
- Department of Chemistry
- Science Institute
- University of Iceland
- 107 Reykjavík
- Iceland
| |
Collapse
|
17
|
Vasilyev G, Koifman N, Shuster M, Gishvoliner M, Cohen Y, Zussman E. Synergistic Effect of Two Organogelators for the Creation of Bio-Based, Shape-Stable Phase-Change Materials. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:15572-15582. [PMID: 33320688 DOI: 10.1021/acs.langmuir.0c02960] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Two organogelators of different chemistry (a fatty acid derivative and a bis-urea derivative), as well as their blends, were used to impart shape stability to a bio-based phase-change material (PCM) bearing a near-ambient phase-transition temperature. Characterization of the individual gelators and their blends revealed their ability to immobilize the PCM by forming a continuous fibrillar network. The fibrils formed by the fatty acid derivative were helical, while the bis-urea derivative formed smooth fibrils. Also, the bis-urea derivative formed a continuous network at a lower critical concentration than the fatty acid derivative. At each fixed concentration, the bis-urea derivative yielded gels with higher thermal stability than the fatty acid derivative. The two gelators blended in certain ratios demonstrated a strong synergistic effect, providing gels with a significantly higher modulus (∼20-fold) and yield stress (∼1.5-fold) than each gelator individually. PCM gelation did not significantly affect its thermal behavior, however, affected its crystalline morphology. The gelled PCM displayed stacked structures, consisting of alternating pure PCM layers separated by layers formed by gelator fibrils. The phase diagram of the triple system comprising both gelators and PCM demonstrated either single or double gelation behavior depending on the composition. These findings may provide guidelines for the development of novel, shape-stable PCMs, which could be of potential use in various thermal energy storage applications.
Collapse
Affiliation(s)
- Gleb Vasilyev
- Faculty of Mechanical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Naama Koifman
- Faculty of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Michael Shuster
- Carmel Olefins Ltd.-BAZAN Group, P.O. Box 1468, Haifa 31014, Israel
| | | | - Yachin Cohen
- Faculty of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Eyal Zussman
- Faculty of Mechanical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel
| |
Collapse
|
18
|
Ibrahim MIA, Pickaert G, Stefan L, Jamart-Grégoire B, Bodiguel J, Averlant-Petit MC. Cyclohexamer [-(d-Phe-azaPhe-Ala) 2-]: good candidate to formulate supramolecular organogels. RSC Adv 2020; 10:43859-43869. [PMID: 35519698 PMCID: PMC9058333 DOI: 10.1039/d0ra07775e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 11/16/2020] [Indexed: 11/24/2022] Open
Abstract
Molecular self-assembly is a fascinating process which has become an area of great interest in supramolecular chemistry, as it leads in certain cases to molecular gels. Organogels formulated from low molecular weight compounds (LMWOGs) have attracted much interest in the past decades due to their applications as new soft materials. Herein, we report on the ability of the cyclic pseudopeptide cyclo-[-(d-Phe-azaPhe-Ala)2-] (2) to self-assemble in some aromatic solvents and to form organogels driven by non-covalent forces, mainly hydrogen bonding and π-stacking interactions. Comprehensive FTIR and NMR studies emphasized that this cyclic aza-peptide adopts a β-turn conformation at low concentration in toluene, while an equilibrium between the monomeric states (intramolecular forces) and the supramolecular structures (intra- and intermolecular forces) is established at high concentration (gel state). Rheological investigations of the organogels highlight the dependence of their stiffness (up to ∼4 kPa) and sol/gel transition temperatures (up to 100 °C) as a function of the solvent and concentration of gelator used. The formulation of fibrous structures confirmed the phenomenon of self-assembly. Finally, we found that cyclo-[-(d-Phe-azaPhe-Ala)2-] is an effective organogelator for application in phase selective gelation (PSG) of organic solvents from aqueous/organic mixtures with recovery percents up to 96%.
Collapse
Affiliation(s)
- Mohamed I A Ibrahim
- Laboratoire de Chimie-Physique Macromoléculaire (LCPM), UMR 7375, CNRS, Université de Lorraine Nancy France
- Laboratory of Marine Chemistry, Marine Environment Division, National Institute of Oceanography and Fisheries, NIOF Egypt
| | - Guillaume Pickaert
- Laboratoire de Chimie-Physique Macromoléculaire (LCPM), UMR 7375, CNRS, Université de Lorraine Nancy France
| | - Loïc Stefan
- Laboratoire de Chimie-Physique Macromoléculaire (LCPM), UMR 7375, CNRS, Université de Lorraine Nancy France
| | - Brigitte Jamart-Grégoire
- Laboratoire de Chimie-Physique Macromoléculaire (LCPM), UMR 7375, CNRS, Université de Lorraine Nancy France
| | - Jacques Bodiguel
- Laboratoire de Chimie-Physique Macromoléculaire (LCPM), UMR 7375, CNRS, Université de Lorraine Nancy France
| | | |
Collapse
|
19
|
Park SH, Shin SS, Park CH, Jeon S, Gwon J, Lee SY, Kim SJ, Kim HJ, Lee JH. Poly(acryloyl hydrazide)-grafted cellulose nanocrystal adsorbents with an excellent Cr(VI) adsorption capacity. JOURNAL OF HAZARDOUS MATERIALS 2020; 394:122512. [PMID: 32200239 DOI: 10.1016/j.jhazmat.2020.122512] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/24/2020] [Accepted: 03/09/2020] [Indexed: 06/10/2023]
Abstract
In this study, we prepared poly(acryloyl hydrazide) (PAH)-grafted cellulose nanocrystal (CNC-PAH) particles via the atom transfer radical polymerization method for application to Cr(VI) adsorption. The closely-packed PAH chains grafted on the cellulose nanocrystal (CNC) surface provide a high density of amine groups that can adsorb Cr(VI) through strong electrostatic, hydrogen bonding and chelating interactions. CNC-PAH exhibited the optimum Cr(VI) adsorption capacity at the solution pH = 3, where its electrostatic attraction with Cr(VI) was maximized. Cr(VI) was chemisorbed in CNC-PAH by following the Langmuir isotherm mechanism (homogeneous monolayer adsorption). The Cr(VI) adsorption kinetics of CNC-PAH was controlled predominantly by intra-particle diffusion resistance imparted by the PAH shell layer. Thermodynamic analysis revealed that Cr(VI) adsorption of CNC-PAH is a spontaneous and endothermic process. Importantly, CNC-PAH grafted with the higher Mw (∼50 kg mol-1) PAH exhibited a rapid Cr(VI) adsorption rate and remarkably high Cr(VI) adsorption capacity (∼457.6 mg g-1 at 298.15 K), exceeding those of previously reported adsorbents owing to its numerous Cr(VI)-adsorptive amine groups provided by the closely-packed grafted PAH polymers. Furthermore, CNC-PAH showed excellent reusability to maintain its high adsorption ability during repeated adsorption-desorption cycles owing to the covalently binding nature of the PAH polymers.
Collapse
Affiliation(s)
- Sang-Hee Park
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Seung Su Shin
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Chan Hyung Park
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Sungkwon Jeon
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Jaegyoung Gwon
- Department of Forest Products, National Institute of Forest Science, Seoul, 02455, Republic of Korea
| | - Sun-Young Lee
- Department of Forest Products, National Institute of Forest Science, Seoul, 02455, Republic of Korea
| | - Sung-Jun Kim
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea; Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, Daejeon, 34057, Republic of Korea
| | - Hyung-Ju Kim
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, Daejeon, 34057, Republic of Korea
| | - Jung-Hyun Lee
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea.
| |
Collapse
|
20
|
Van Lommel R, Zhao J, De Borggraeve WM, De Proft F, Alonso M. Molecular dynamics based descriptors for predicting supramolecular gelation. Chem Sci 2020. [DOI: 10.1039/d0sc00129e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Four molecular dynamics-based descriptors were derived able to classify gelator–solvent combinations as a gel, precipitate or clear solution.
Collapse
Affiliation(s)
- Ruben Van Lommel
- Molecular Design and Synthesis
- Department of Chemistry
- KU Leuven
- 3001 Leuven
- Belgium
| | - Jianyu Zhao
- Eenheid Algemene Chemie (ALGC)
- Vrije Universiteit Brussel (VUB)
- 1050 Brussels
- Belgium
| | - Wim M. De Borggraeve
- Molecular Design and Synthesis
- Department of Chemistry
- KU Leuven
- 3001 Leuven
- Belgium
| | - Frank De Proft
- Eenheid Algemene Chemie (ALGC)
- Vrije Universiteit Brussel (VUB)
- 1050 Brussels
- Belgium
| | - Mercedes Alonso
- Eenheid Algemene Chemie (ALGC)
- Vrije Universiteit Brussel (VUB)
- 1050 Brussels
- Belgium
| |
Collapse
|
21
|
Tautz M, Torras J, Grijalvo S, Eritja R, Saldías C, Alemán C, Díaz DD. Expanding the limits of amide-triazole isosteric substitution in bisamide-based physical gels. RSC Adv 2019; 9:20841-20851. [PMID: 35515547 PMCID: PMC9065762 DOI: 10.1039/c9ra03316e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 06/12/2019] [Indexed: 11/21/2022] Open
Abstract
Gelation of organic solvents using N,N'-((1S,2S)-cyclohexane-1,2-diyl)didodecanamide (C12-Cyc) is driven by its self-assembly via antiparallel hydrogen bonds and van der Waals intermolecular interactions. In this work we carried out a dual isosteric substitution of the two amide groups with 1,2,3-triazole rings affording the corresponding isosteric gelator (click-C12-Cyc). A detailed comparative study in terms of the gelation ability and gel properties demonstrated that the 1,2,3-triazoles can take over all of the functions derived from the amide groups offering a versatile strategy for tuning the properties of the corresponding gels. This is not an obvious outcome because the directional amide groups in C12-Cyc constitute the source of the hydrogen bonds to build the 3D self-assembled network. Furthermore, theoretical calculations revealed that click-C12-Cyc can adopt a wide variety of interacting patterns, whose relative stability depends on the polarity of the environment, this is in good agreement with the experimental data obtained regarding its gelation ability. Other important features of click-C12-Cyc for potential practical applications are its non-cytotoxic character and its phase-selective gelation of water-oil mixtures.
Collapse
Affiliation(s)
- Markus Tautz
- Institut für Organische Chemie, Universität Regensburg Universitätsstr. 31 93053 Regensburg Germany
| | - Juan Torras
- Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya C/Eduard Maristany, 10-14, Ed. 12 08019 Barcelona Spain
- Barcelona Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya C/Eduard Maristany, 10-14 08019 Barcelona Spain
| | - Santiago Grijalvo
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN) Jordi Girona 18-26 08034 Barcelona Spain
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC) Jordi Girona 18-26 08034 Barcelona Spain
| | - Ramón Eritja
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN) Jordi Girona 18-26 08034 Barcelona Spain
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC) Jordi Girona 18-26 08034 Barcelona Spain
| | - César Saldías
- Departamento de Química Física, Facultad de Química, Pontificia Universidad Católica de Chile Casilla 302, Correo 22 Santiago Chile
| | - Carlos Alemán
- Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya C/Eduard Maristany, 10-14, Ed. 12 08019 Barcelona Spain
- Barcelona Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya C/Eduard Maristany, 10-14 08019 Barcelona Spain
| | - David Díaz Díaz
- Institut für Organische Chemie, Universität Regensburg Universitätsstr. 31 93053 Regensburg Germany
- Instituto de Productos Naturales y Agrobiología del CSIC Avda. Astrofísico Francisco Sánchez 3 38206 La Laguna Tenerife Spain
| |
Collapse
|
22
|
Theoretical Study of the Adsorption Process of Antimalarial Drugs into Acrylamide-Base Hydrogel Model Using DFT Methods: The First Approach to the Rational Design of a Controlled Drug Delivery System. Processes (Basel) 2019. [DOI: 10.3390/pr7070396] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The interaction between three widely used antimalarial drugs chloroquine, primaquine and amodiaquine with acrylamide dimer and trimer as a hydrogel model, were studied by means of density functional theory calculation in both vacuum and water environments, using the functional wb97xd with 6-31++G(d,p) basis set and polarizable continuum model (C-PCM) of solvent. According to binding energy, around −3.15 to −11.91 kJ/mol, the interaction between antimalarial compounds and hydrogel model are exothermic in nature. The extent of interaction found is primaquine > amodiaquine > chloroquine. The natural bond orbital (NBO) calculation and application of second-order perturbation theory show strong charge transfer between the antimalarial and hydrogel model. In addition, the results suggest these interactions are polar in nature, where hydrogen bonds play a principal role in stabilization of the complex. Comparing with the gas-phase, the complexes in the water environment are also stable, with suitable values of Log P (Partition coefficient), and dipolar momentum. Consequently, these results encourage to test acrylamide hydrogels as antimalarial delivery systems.
Collapse
|
23
|
Kulkarni C, Berrocal JA, Lutz M, Palmans ARA, Meijer EW. Directing the Solid-State Organization of Racemates via Structural Mutation and Solution-State Assembly Processes. J Am Chem Soc 2019; 141:6302-6309. [PMID: 30920829 DOI: 10.1021/jacs.9b00452] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Chirality plays a central role in biomolecular recognition and pharmacological activity of drugs and can even lead to new functions such as spin filters. Although there have been significant advances in understanding and controlling the helical organization of enantiopure synthetic molecular systems, rationally dictating the assembly of mixtures of enantiomer (including racemates) is nontrivial. Here we demonstrate that a subtle change in molecular structure coupled with the understanding of assembly processes of enantiomers and racemates, in both dilute solution and concentrated gels, acts as a stepping stone to rationally control the organization in the solid-state. We have studied trans-1,2-disubstituted cyclohexanes as model systems with carboxamide, thioamide, and their combination as functional groups. On comparing the gelation propensity of individual enantiomers and racemates, we find that racemates of carboxamide, thioamide, and their combination adopt self-sorting, coassembly, and mixed organization, respectively. Remarkably, these modes of assembly of racemates were also retained in solid-state. These results point out that studying the solution-phase assembly is a key link for connecting molecular structure with the assembly in the solid-state, even for racemates.
Collapse
Affiliation(s)
- Chidambar Kulkarni
- Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems (ICMS) , Eindhoven University of Technology , P.O. Box 513, 5600 MB Eindhoven , The Netherlands
| | - José Augusto Berrocal
- Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems (ICMS) , Eindhoven University of Technology , P.O. Box 513, 5600 MB Eindhoven , The Netherlands
| | - Martin Lutz
- Crystal and Structural Chemistry, Bijvoet Center for Biomolecular Research , Utrecht University , 3584 CH Utrecht , The Netherlands
| | - Anja R A Palmans
- Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems (ICMS) , Eindhoven University of Technology , P.O. Box 513, 5600 MB Eindhoven , The Netherlands
| | - E W Meijer
- Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems (ICMS) , Eindhoven University of Technology , P.O. Box 513, 5600 MB Eindhoven , The Netherlands
| |
Collapse
|
24
|
Pi-Boleda B, Campos M, Sans M, Basavilbaso A, Illa O, Branchadell V, Estévez JC, Ortuño RM. Synthesis and Gelling Abilities of Polyfunctional Cyclohexane-1,2-dicarboxylic Acid Bisamides: Influence of the Hydroxyl Groups. Molecules 2019; 24:molecules24020352. [PMID: 30669453 PMCID: PMC6358840 DOI: 10.3390/molecules24020352] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 01/16/2019] [Accepted: 01/18/2019] [Indexed: 11/16/2022] Open
Abstract
New enantiomerically pure C16-alkyl diamides derived from trihydroxy cyclohexane-1,2-dicarboxylic acid have been synthesized from (−)-shikimic acid. The hydroxyl groups in these compounds are free or, alternatively, they present full or partial protection. Their gelling abilities towards several solvents have been tested and rationalized by means of the combined use of Hansen solubility parameters, scanning electron microscopy (SEM), and circular dichroism (CD), as well as computational calculations. All the results allowed us to account for the capability of each type of organogelator to interact with different solvents and for the main mode of aggregation. Thus, compounds with fully protected hydroxyl groups are good organogelators for methanol and ethanol. In contrast, a related compound bearing three free hydroxyl groups is insoluble in water and polar solvents including alcohols but it is able to gelate some low-polarity solvents. This last behavior can be justified by strong hydrogen bonding between molecules of organogelator, which competes advantageously with polar solvent interactions. As an intermediate case, an organogelator with two free hydroxyl groups presents an ambivalent ability to gelate both apolar and polar solvents by means of two aggregation patterns. These involve hydrogen bonding interactions of the unprotected hydroxyl groups in apolar solvents and intermolecular interactions between amide groups in polar ones.
Collapse
Affiliation(s)
- Bernat Pi-Boleda
- Department de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain.
| | - María Campos
- CIQUS (Centro Singular de Investigación en Química Biológica y Materiales Moleculares), Departamento de Química Orgánica Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Marta Sans
- Department de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain.
- The Hamburg Center for Ultrafast Imaging (CUI), Luruper Chaussee 149, 22761 Hamburg, Germany.
| | - Antonio Basavilbaso
- CIQUS (Centro Singular de Investigación en Química Biológica y Materiales Moleculares), Departamento de Química Orgánica Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Ona Illa
- Department de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain.
| | - Vicenç Branchadell
- Department de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain.
| | - Juan Carlos Estévez
- CIQUS (Centro Singular de Investigación en Química Biológica y Materiales Moleculares), Departamento de Química Orgánica Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
| | - Rosa M Ortuño
- Department de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain.
| |
Collapse
|
25
|
Tautz M, Saldías C, Lozano-Gorrín AD, Díaz Díaz D. Use of a bis-1,2,3-triazole gelator for the preparation of supramolecular metallogels and stabilization of gold nanoparticles. NEW J CHEM 2019. [DOI: 10.1039/c9nj03427g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, a series of functional metallogels have been prepared using a bis-1,2,3-triazole gelator prepared using the isosteric substitution method.
Collapse
Affiliation(s)
- Markus Tautz
- Institut für Organische Chemie
- Universität Regensburg
- 93053 Regensburg
- Germany
| | - César Saldías
- Departamento de Química Física, Facultad de Química
- Pontificia Universidad Católica de Chile
- Santiago
- Chile
| | - Antonio Diego Lozano-Gorrín
- Departamento de Química
- Universidad de La Laguna
- 38206 La Laguna
- Spain
- Instituto Universitario de Materiales y Nanotecnología (IMN)
| | - David Díaz Díaz
- Institut für Organische Chemie
- Universität Regensburg
- 93053 Regensburg
- Germany
- Instituto de Productos Naturales y Agrobiología del CSIC
| |
Collapse
|
26
|
Kodama K, Kawamata R, Hirose T. Synthesis and evaluation of chiral β-amino acid-based low-molecular-weight organogelators possessing a methyl/trifluoromethyl side chain. NEW J CHEM 2019. [DOI: 10.1039/c8nj05668d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Impacts of side-chains and chirality of organogelators derived from β-amino acids are described with their supramolecular structures.
Collapse
Affiliation(s)
- Koichi Kodama
- Department of Applied Chemistry
- Graduate School of Science and Engineering
- Saitama University
- Saitama
- Japan
| | - Ryuta Kawamata
- Department of Applied Chemistry
- Graduate School of Science and Engineering
- Saitama University
- Saitama
- Japan
| | - Takuji Hirose
- Department of Applied Chemistry
- Graduate School of Science and Engineering
- Saitama University
- Saitama
- Japan
| |
Collapse
|
27
|
Schoenmakers SMC, Leenders CMA, Lafleur RPM, Lou X, Meijer EW, Pavan GM, Palmans ARA. Impact of the water-compatible periphery on the dynamic and structural properties of benzene-1,3,5-tricarboxamide based amphiphiles. Chem Commun (Camb) 2018; 54:11128-11131. [PMID: 30225478 DOI: 10.1039/c8cc04818e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The consequences of using saccharides versus tetra(ethyleneglycol) chains as water-compatible moieties on the morphology and dynamics of supramolecular polymers in aqueous solutions are investigated. The saccharides form many H-bonds with other saccharides within the polymer and with water, increasing the hydration of the fiber and changing its dynamics.
Collapse
Affiliation(s)
- Sandra M C Schoenmakers
- Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
| | | | | | | | | | | | | |
Collapse
|
28
|
The role of edible oils in low molecular weight organogels rheology and structure. Food Res Int 2018; 111:399-407. [DOI: 10.1016/j.foodres.2018.05.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 04/30/2018] [Accepted: 05/21/2018] [Indexed: 11/19/2022]
|
29
|
Meyer AR, Bender CR, Dos Santos DM, Ziembowicz FI, Frizzo CP, Villetti MA, Reichert JM, Zanatta N, Bonacorso HG, Martins MAP. Effect of slight structural changes on the gelation properties of N-phenylstearamide supramolecular gels. SOFT MATTER 2018; 14:6716-6727. [PMID: 30062361 DOI: 10.1039/c8sm00961a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Supramolecular gels present several applications in which the gelator properties are closely dependent on their structure and solvent. Despite this, there are few studies on the effect of the gelation ability of gelators with slight molecular changes. Therefore, N-arylestearamides (in which aryl = phenyl (1), 4-tolyl (2) and 4-acetylphenyl (3)) were evaluated in different solvents. The critical gelefication concentration (CGC) values indicated that the substituents can significantly affect the concentration at which the supramolecular gels are formed, mainly in non-aromatic solvents (e.g. cyclohexane, acetonitrile and DMSO). From UV-Vis and DSC data, we verified that the gel-sol and sol-gel transitions (Tgel-sol and Tsol-gel) increase in the order of 1 < 2 < 3. Organogel strength was evaluated for 1-3 as a function of concentration and solvent type using rheology data. Gel strength is concentration-dependent and a strength order was found in acetonitrile, cyclohexane and DMSO, in which: 1 ∼ 2 > 3. Dynamic viscoelastic measurements as a function of temperature sweeps indicate a predominantly enthalpic contribution to the elasticity of the organogels formed from 1-3. Temperature-dependent 1H NMR indicates that NHO interactions may be responsible for the molecular association of molecules into 1D fibers, while 3D fibers were formed from van der Waals interactions.
Collapse
Affiliation(s)
- Alexandre R Meyer
- Núcleo de Química de Heterociclos (NUQUIMHE), Department of Chemistry, Federal University of Santa Maria, 97105-900, Santa Maria, RS, Brazil.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Rosa Nunes D, Raynal M, Isare B, Albouy PA, Bouteiller L. Organogel formation rationalized by Hansen solubility parameters: improved methodology. SOFT MATTER 2018; 14:4805-4809. [PMID: 29808203 DOI: 10.1039/c8sm00562a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
An organogel is obtained when a low molar mass compound forms a network of anisotropic fibres in a liquid that is therefore transformed into a macroscopic solid. Various approaches have been proposed to correlate organogel formation and Hansen solubility parameters. These approaches are well adapted to specific experimental datasets but lack universality. A general method to determine the gelation domain from the solubility data of low molecular weight gelators is here reported.
Collapse
Affiliation(s)
- Danilo Rosa Nunes
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), Equipe Chimie des Polymères, F-75005 Paris, France.
| | | | | | | | | |
Collapse
|
31
|
Roy R, Adalder TK, Dastidar P. Supramolecular Gels Derived from the Salts of Variously Substituted Phenylacetic Acid and Dicyclohexylamine: Design, Synthesis, Structures, and Dye Adsorption. Chem Asian J 2018; 13:552-559. [PMID: 29345067 DOI: 10.1002/asia.201701632] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 01/17/2018] [Indexed: 11/07/2022]
Abstract
A well-studied supramolecular synthon, namely, secondary ammonium monocarboxylate (SAM), was exploited to generate a new series of organic salts derived from variously substituted phenylacetic acid and dicyclohexylamine as potential low-molecular-weight gelators. As much as 25 % of the SAM salts under study were gelators. The gels were characterized by rheology, and the morphology of the gel networks was studied by high-resolution electron microscopy. Single-crystal and powder XRD data were employed to study structure-property (gelation) correlations. One of the gels could adsorb a hydrophobic dye (Nile Red) more efficiently than that of a hydrophilic dye (Calcein) from dimethyl sulfoxide; this might provide useful clues towards the development of stain-removing gels.
Collapse
Affiliation(s)
- Rajdip Roy
- Department of Organic Chemistry, Indian Association for the Cultivation of Science (IACS), 2A and 2B, Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, West Bengal, India
| | - Tapas Kumar Adalder
- Department of Chemistry, Jhargram Raj College, Jhargram, 721507, West Bengal, India
| | - Parthasarathi Dastidar
- Department of Organic Chemistry, Indian Association for the Cultivation of Science (IACS), 2A and 2B, Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, West Bengal, India
| |
Collapse
|
32
|
|
33
|
Jones CD, Steed JW. Gels with sense: supramolecular materials that respond to heat, light and sound. Chem Soc Rev 2018; 45:6546-6596. [PMID: 27711667 DOI: 10.1039/c6cs00435k] [Citation(s) in RCA: 307] [Impact Index Per Article: 51.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Advances in the field of supramolecular chemistry have made it possible, in many situations, to reliably engineer soft materials to address a specific technological problem. Particularly exciting are "smart" gels that undergo reversible physical changes on exposure to remote, non-invasive environmental stimuli. This review explores the development of gels which are transformed by heat, light and ultrasound, as well as other mechanical inputs, applied voltages and magnetic fields. Focusing on small-molecule gelators, but with reference to organic polymers and metal-organic systems, we examine how the structures of gelator assemblies influence the physical and chemical mechanisms leading to thermo-, photo- and mechano-switchable behaviour. In addition, we evaluate how the unique and versatile properties of smart materials may be exploited in a wide range of applications, including catalysis, crystal growth, ion sensing, drug delivery, data storage and biomaterial replacement.
Collapse
Affiliation(s)
| | - Jonathan W Steed
- Department of Chemistry, Durham University, South Road, DH1 3LE, UK.
| |
Collapse
|
34
|
Wang H, Ji X, Li Y, Li Z, Tang G, Huang F. An ATP/ATPase responsive supramolecular fluorescent hydrogel constructedviaelectrostatic interactions between poly(sodiump-styrenesulfonate) and a tetraphenylethene derivative. J Mater Chem B 2018; 6:2728-2733. [DOI: 10.1039/c8tb00366a] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We report a supramolecular fluorescent hydrogel based on poly(sodiump-styrenesulfonate) and a tetraphenylethene derivative.
Collapse
Affiliation(s)
- Hu Wang
- State Key Laboratory of Chemical Engineering
- Center for Chemistry of High-Performance & Novel Materials
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
| | - Xiaofan Ji
- State Key Laboratory of Chemical Engineering
- Center for Chemistry of High-Performance & Novel Materials
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
| | - Yang Li
- Department of Chemistry
- Institute of Chemical Biology and Pharmaceutical Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Zhengtao Li
- State Key Laboratory of Chemical Engineering
- Center for Chemistry of High-Performance & Novel Materials
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
| | - Guping Tang
- Department of Chemistry
- Institute of Chemical Biology and Pharmaceutical Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Feihe Huang
- State Key Laboratory of Chemical Engineering
- Center for Chemistry of High-Performance & Novel Materials
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
| |
Collapse
|
35
|
Sato H, Yajima T, Yamagishi A. Stereochemical effects on dynamics in two-component systems of gelators with perfluoroalkyl and alkyl chains as revealed by vibrational circular dichroism. Phys Chem Chem Phys 2018; 20:3210-3215. [DOI: 10.1039/c7cp06264h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The VCD method was applied to the gelation processes of chiral two-component gel systems.
Collapse
Affiliation(s)
- Hisako Sato
- Graduated School of Science and Engineering
- Ehime University
- Matsuyama
- Japan
| | - Tomoko Yajima
- Faculty of Science
- Department of Chemistry
- Ochanomizu University
- Tokyo 112-8610
- Japan
| | | |
Collapse
|
36
|
Yamagishi A, Tamura K, Yajima T, Sato H. Two-dimensional Arrays of Molecular Rods as a Precursor of Gel Fibrils. CHEM LETT 2017. [DOI: 10.1246/cl.170774] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Akihiko Yamagishi
- Faculty of Medicine, Toho University, 5-21-16 Omori-Nishi, Ota-ku, Tokyo 143-8540
| | - Kenji Tamura
- National Institute of Materials Science, Tsukuba, Ibaraki 305-0044
| | - Tomoko Yajima
- Faculty of Science, Department of Chemistry, Ochanomizu University, Tokyo 112-8610
| | - Hisako Sato
- Graduate School of Science and Engineering, Ehime University, 2-5 Bunkyo-cho, Matsuyama, Ehime 790-8577
| |
Collapse
|
37
|
Rajkamal, Pathak NP, Halder T, Dhara S, Yadav S. Partially Acetylated or Benzoylated Arabinose Derivatives as Structurally Simple Organogelators: Effect of the Ester Protecting Group on Gel Properties. Chemistry 2017. [PMID: 28639337 DOI: 10.1002/chem.201701669] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Sugar-based low-molecular-weight gelators (LMWGs) have been used for various applications for a long time. Herein, structurally simple, ester-protected arabinosides are reported as low-molecular-weight organogelators (LMOGs) that are able to gel aromatic solvents, as well as petrol and diesel. Studies on the mechanical strength of the gels, through detailed rheological experiments, indicate that gels from the 1,2-dibenzoylated arabinose gelator possess better mechanical properties than those from the 1,2-diacetylated gelator. These results are interpreted in terms of the tendency of the former to form fibers with comparatively lower diameter than those of the latter, based on detailed field-emission SEM and AFM studies. Investigations of the interactions responsible for the self-assembly of gelators through IR spectroscopy and wide-angle X-ray scattering reveal that the primary interactions responsible are hydrogen bonds between the hydroxyl groups and ester C=O, which is absent in the solid state of the gelators. In addition, π interactions present in the 1,2-dibenzoylated derivative result in a more regular arrangement, which, in turn, leads to better mechanical properties of the gels compared with those of the 1,2-diacetylated gelator.
Collapse
Affiliation(s)
- Rajkamal
- Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India
| | - Navendu P Pathak
- Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India
| | - Tanmoy Halder
- Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India
| | - Shubhajit Dhara
- Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India
| | - Somnath Yadav
- Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India
| |
Collapse
|
38
|
|
39
|
Wang H, Ji X, Li Z, Huang F. Fluorescent Supramolecular Polymeric Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29. [PMID: 28198107 DOI: 10.1002/adma.201606117] [Citation(s) in RCA: 161] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 12/13/2016] [Indexed: 05/07/2023]
Abstract
Fluorescent supramolecular polymeric materials are rising stars in the field of fluorescent materials not only because of the inherent optoelectronic properties originating from their chromophores, but also due to the fascinating stimuli-responsiveness and reversibility coming from their noncovalent connections. Especially, these noncovalent connections influence the fluorescence properties of the chromophores because their state of aggregation and energy transfer can be regulated by the assembly-disassembly process. Considering these unique properties, fluorescent supramolecular polymeric materials have facilitated the evolution of new materials useful for applications in fluorescent sensors, probes, as imaging agents in biological systems, light-emitting diodes, and organic electronic devices. In this Review, fluorescent supramolecular polymeric materials are classified depending on the types of main driving forces for supramolecular polymerization, including multiple hydrogen bonding, electrostatic interactions, π-π stacking interactions, metal-coordination, van der Waals interactions and host-guest interactions. Through the summary of the studies about fluorescent supramolecular polymeric materials, the status quo of this research field is assessed. Based on existing challenges, directions for the future development of this field are furnished.
Collapse
Affiliation(s)
- Hu Wang
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Xiaofan Ji
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Zhengtao Li
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Feihe Huang
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China
| |
Collapse
|
40
|
Pi-Boleda B, Sans M, Campos M, Nolis P, Illa O, Estévez JC, Branchadell V, Ortuño RM. Studies on Cycloalkane-Based Bisamide Organogelators: A New Example of Stochastic Chiral Symmetry-Breaking Induced by Sonication. Chemistry 2017; 23:3357-3365. [PMID: 28005300 DOI: 10.1002/chem.201604818] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Indexed: 11/08/2022]
Abstract
Enantiomerically pure C16 -alkyl amides derived from cis and trans cycloalkane-1,2-dicarboxylic acids, respectively, have been synthesized and their behavior as organogelators has been investigated. These compounds include cis/trans diastereomeric cyclobutane and cyclohexane derivatives with the aim to explore the influence of the ring size as well as the relative configuration in their hierarchical self-assembly to form gels. High resolution 1 H NMR spectroscopy studies allowed the determination of the dynamics of the gelation process in [D8 ]toluene and the sol-gel transition temperature. The morphology and size of the aggregates have been investigated and results have shown that, in the case of cyclobutane derivatives, the cis/trans stereochemistry is not relevant for the gelation behavior and the properties of the soft-materials obtained, but it is remarkable for cyclohexane diamides, which are better organogelators. The four compounds produce chiral aggregates despite that two of them are meso achiral molecules. We show herein that this fact is an example of stochastic symmetry breaking induced by sonication. The self-assembly of these molecules has been modelled providing information and support about the structure and the chirality of the aggregates.
Collapse
Affiliation(s)
- Bernat Pi-Boleda
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Marta Sans
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - María Campos
- CIQUS (Centro Singular de Investigación en Química Biológica y Materiales Moleculares) y Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Pau Nolis
- Servei de Ressonància Magnètica Nuclear, Universitat Autònoma de Barcelona, 08193, Cerdanyola del Vallès, Barcelona, Spain
| | - Ona Illa
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Juan Carlos Estévez
- CIQUS (Centro Singular de Investigación en Química Biológica y Materiales Moleculares) y Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Vicenç Branchadell
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Rosa M Ortuño
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| |
Collapse
|
41
|
Pei Q, Tang Q, Tan ZL, Lu ZL, He L, Gong B. Amphiphilic oligoamides as versatile, acid-responsive gelators. RSC Adv 2017. [DOI: 10.1039/c7ra03074f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Among six oligoamides, G1–G6, G2 stands out as a versatile gelator to form stable hydrogels as well as several organogels. The hydrogel of G2 is able to encapsulate and release medicinally important substances with acid-responsiveness.
Collapse
Affiliation(s)
- Qiang Pei
- College of Chemistry
- Beijing Normal University
- Beijing
- China
- College of Chemistry and Chemical Engineering
| | - Quan Tang
- College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Zheng-Li Tan
- College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Zhong-Lin Lu
- College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Lan He
- College of Chemistry
- Beijing Normal University
- Beijing
- China
- National Institute for Food and Drug Control
| | - Bing Gong
- College of Chemistry
- Beijing Normal University
- Beijing
- China
- Department of Chemistry
| |
Collapse
|
42
|
The effects of intermolecular interactions on the physical properties of organogels in edible oils. J Colloid Interface Sci 2016; 483:154-164. [DOI: 10.1016/j.jcis.2016.08.009] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 08/02/2016] [Accepted: 08/02/2016] [Indexed: 01/29/2023]
|
43
|
Baddi S, Madugula SS, Sarma DS, Soujanya Y, Palanisamy A. Combined Experimental and Computational Study of the Gelation of Cyclohexane-Based Bis(acyl-semicarbazides) and the Multi-Stimuli-Responsive Properties of Their Gels. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:889-99. [PMID: 26727635 DOI: 10.1021/acs.langmuir.5b03987] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The current study reports the one-step synthesis and gelation properties of cyclohexane-based bis(acyl-semicarbazide) gelators with an additional -NH group incorporated into urea moieties and carrying hydrophobic chains of varying length (C8-C18). The gels exhibited thermoreversibility and could be tuned in the presence of anions at different concentrations in addition their the ultrasound-responsive nature, thus making them multi-stimuli-responsive. The combined experimental and computational study on these gels reveals that the balance between two noncovalent interactions, viz., hydrogen bonding between the amide groups in acyl-semicarbazide moieties and van der Waals forces between long hydrocarbon tails, is found to be the determining factor in the process of organogelation. A systematic increase in alkyl chain length leads to equilibrium between these two types of noncovalent forces that is manifested in the spectral and thermal properties of the gels. The H-bonding interactions dominated up to a certain chain length, and further increases in the alkyl chain length led to increased van der Waals interactions as observed by IR, XRD, and thermal studies. Computational calculations were carried out on dimer structures of C8-C18 to understand the variation in noncovalent forces responsible for aggregate formation in the gel state as a function of the alkyl chain length. The results indicate that both intermolecular and intramolecular hydrogen bonding stabilize the aggregate structures. Supramolecular aggregation in the gel state led to the viscoelastic nature of the gels, and the addition of anions led to the disruption of self-assembly, which was studied by rheology.
Collapse
Affiliation(s)
| | | | - D Srinivasa Sarma
- Geochemistry Division, CSIR-National Geophysical Research Institute , Hyderabad-500007, Telangana, India
| | | | | |
Collapse
|
44
|
Karmakar K, Haldar S. Tweaking of the supramolecular gelation properties of a dipeptide based ambidextrous organogelator through the cooperative influence of hydrophobicity, steric bulk and conformational flexibility of the side chain residue of a single hydrophobic α-amino acid encrypted on a designed molecular frame. RSC Adv 2016. [DOI: 10.1039/c6ra16797g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fine tuning of gelation behavior via singular alteration of hydrophobic Cα-amino acid on the backbone of a dipeptide based ambidextrous organogelator.
Collapse
Affiliation(s)
| | - Saubhik Haldar
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
| |
Collapse
|
45
|
Isare B, Pensec S, Raynal M, Bouteiller L. Bisurea-based supramolecular polymers: From structure to properties11Dedicated to Professor Jean-Pierre Vairon on the occasion of his 78th birthday. CR CHIM 2016. [DOI: 10.1016/j.crci.2015.06.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
46
|
Lascialfari L, Pescitelli G, Brandi A, Mannini M, Berti D, Cicchi S. Urea vs. carbamate groups: a comparative study in a chiral C2 symmetric organogelator. SOFT MATTER 2015; 11:8333-8341. [PMID: 26350644 DOI: 10.1039/c5sm01684c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The effect of the replacement of molecular moieties (carbamates vs. urea) that drive self-assembly for two organogelators with an identical C(2) symmetric molecular structure is described. The main properties of the gels obtained from the urea-based organogelators are also discussed. The proposed organogelators are chiral molecules and are able to express chirality also at the supramolecular level, thus allowing the employment of electronic circular dichroism to gain insight into the molecular-scale structure of fibrillar aggregates. With the same technique, the behavior of enantiomeric mixtures of the urea-based organogelators was investigated, revealing the occurrence of different self-sorting phenomena at the molecular and supramolecular scale. The urea-based organogelators demonstrated to be more efficient gelators with respect to the carbamate-based analogues, showing a high gel-to-sol transition temperature (up to 66 °C) and a very low minimum gelling concentration (0.85 mg mL(-1)). This study is a starting point for a deeper investigation of structure/property relationships and, taking into account the peculiar behavior detected for the enantiomeric mixtures, also of self-sorting and molecular recognition phenomena.
Collapse
Affiliation(s)
- Luisa Lascialfari
- "Ugo Schiff" Chemistry Department, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy and INSTM Consortium, UdR Firenze, Via G. Giusti 9, 50121, Firenze, Italy
| | - Gennaro Pescitelli
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Alberto Brandi
- "Ugo Schiff" Chemistry Department, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy and INSTM Consortium, UdR Firenze, Via G. Giusti 9, 50121, Firenze, Italy
| | - Matteo Mannini
- "Ugo Schiff" Chemistry Department, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy and INSTM Consortium, UdR Firenze, Via G. Giusti 9, 50121, Firenze, Italy
| | - Debora Berti
- "Ugo Schiff" Chemistry Department, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy and CSGI Consortium, UdR Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Stefano Cicchi
- "Ugo Schiff" Chemistry Department, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy and INSTM Consortium, UdR Firenze, Via G. Giusti 9, 50121, Firenze, Italy
| |
Collapse
|
47
|
Sato H, Yajima T, Yamagishi A. Chiroptical Studies on Supramolecular Chirality of Molecular Aggregates. Chirality 2015; 27:659-66. [DOI: 10.1002/chir.22482] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 06/04/2015] [Accepted: 06/08/2015] [Indexed: 12/27/2022]
Affiliation(s)
- Hisako Sato
- Graduated of Science and Engineering; Ehime University; Matsuyama Japan
| | - Tomoko Yajima
- Department of Chemistry; Ochanomizu University; Tokyo Japan
| | | |
Collapse
|
48
|
Hiscock JR, Sambrook MR, Wells NJ, Gale PA. Detection and remediation of organophosphorus compounds by oximate containing organogels. Chem Sci 2015; 6:5680-5684. [PMID: 28791084 PMCID: PMC5527500 DOI: 10.1039/c5sc01864a] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Accepted: 07/02/2015] [Indexed: 11/21/2022] Open
Abstract
A series of supramolecular diamide organogels containing a reactive compound for the remediation of organophosphorus (OP) species, in particular OP chemical warfare agents (CWAs), has been prepared in DMSO.
A series of supramolecular diamide organogels containing a reactive compound for the remediation of organophosphorus (OP) species, in particular OP chemical warfare agents (CWAs), has been prepared in DMSO. The organogels have been found to absorb, encapsulate and decontaminate various OP CWA simulants in situ. At high simulant concentrations the gels also undergo a gel–sol transition releasing high local concentrations of remediation agent.
Collapse
Affiliation(s)
- Jennifer R Hiscock
- Chemistry , University of Southampton , Highfield , Southampton , England SO17 1BJ , UK . ; Tel: +44 (0)23 80593332
| | - Mark R Sambrook
- CBR Division , Dstl Porton Down , Salisbury , Wiltshire SP4 0JQ , UK . ; Tel: +44 (0)1980 614301
| | - Neil J Wells
- Chemistry , University of Southampton , Highfield , Southampton , England SO17 1BJ , UK . ; Tel: +44 (0)23 80593332
| | - Philip A Gale
- Chemistry , University of Southampton , Highfield , Southampton , England SO17 1BJ , UK . ; Tel: +44 (0)23 80593332
| |
Collapse
|
49
|
Demir-Ordu Ö, Şimşir H, Alper K. Synthesis of bis[N-(p-aryl)-carbamoyloxy]alkanes as new low-molecular weight organogelators. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.01.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
50
|
Abstract
Small molecule gelators are serendipitously discovered more often than they are designed. As a consequence, it has been challenging to develop applications based on the limited set of known materials. This synopsis highlights recent strategies to streamline the process of gelator discovery, with a focus on the role of unidirectional intermolecular interactions and solvation. We present these strategies as a series of tools that can be employed to help identify gelator scaffolds and solvents for gel formation. Overall, we suggest that this guided approach is more efficient than random derivatization and screening.
Collapse
Affiliation(s)
- Danielle M Zurcher
- Department of Chemistry and Macromolecular Science and Engineering Program, University of Michigan , 930 North University Avenue, Ann Arbor, Michigan 48109-1055, United States
| | | |
Collapse
|