1
|
Yang Y, Feng G, Wang J, Zhang R, Zhong S, Wang J, Cui X. Injectable chitosan-based self-healing supramolecular hydrogels with temperature and pH dual-responsivenesses. Int J Biol Macromol 2023; 227:1038-1047. [PMID: 36460241 DOI: 10.1016/j.ijbiomac.2022.11.279] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 11/22/2022] [Accepted: 11/27/2022] [Indexed: 12/02/2022]
Abstract
In this study, a supramolecular hydrogel was fabricated with orotic acid (OA) modified chitosan (OACS) and 2,6-diaminopurine (DAP). The obtained OACS-DAP supramolecular hydrogels have dual responsiveness to temperature and pH. Phase transition experiments indicate this is a temperature-dependent thermoreversible supramolecular hydrogel. Rheological experiments proved the formation of the supramolecular hydrogel and its thixotropic properties. FTIR spectra confirmed that hydrogen bonds and π-π interactions are the main driving forces for OACS and DAP to form hydrogels through intermolecular self-assembly. XRD pattern confirmed the amorphous morphology of OACS-DAP hydrogels. The hydrogel has excellent electrical conductivity with a conductivity of 9.48 μ S·cm-1. And can achieve the precise release of gastrointestinal drugs. OACS-DAP hydrogel is expected to have better applications in the field of gastrointestinal drug release.
Collapse
Affiliation(s)
- Yongyan Yang
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Gangying Feng
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Jingfei Wang
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Ruiting Zhang
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Shuangling Zhong
- College of Resources and Environment, Jilin Agricultural University, Changchun 130118, PR China
| | - Jia Wang
- College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Xuejun Cui
- College of Chemistry, Jilin University, Changchun 130012, PR China; Weihai Institute for Bionics-Jilin University, Weihai 264400, PR China.
| |
Collapse
|
2
|
Jin X, Cui S, Sun S, Tian Y, Lv F, Gu X, Li H, Sun J, Zhang S, Bourbigot S. A new approach on improving the fire resistance of polyamide 11 by incorporating sulfur‐based flame retardant. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4591] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiaodong Jin
- Collage of Materials Science and EngineeringBeijing University of Technology Beijing China
- Beijing Key Laboratory of Advanced Functional Polymer CompositesBeijing University of Chemical Technology Beijing China
| | - Suping Cui
- Collage of Materials Science and EngineeringBeijing University of Technology Beijing China
| | - Shibing Sun
- Collage of Materials Science and EngineeringBeijing University of Technology Beijing China
| | - Yingliang Tian
- Collage of Materials Science and EngineeringBeijing University of Technology Beijing China
| | - Feng Lv
- Collage of Materials Science and EngineeringBeijing University of Technology Beijing China
| | - Xiaoyu Gu
- Beijing Key Laboratory of Advanced Functional Polymer CompositesBeijing University of Chemical Technology Beijing China
| | - Hongfei Li
- Beijing Key Laboratory of Advanced Functional Polymer CompositesBeijing University of Chemical Technology Beijing China
| | - Jun Sun
- Beijing Key Laboratory of Advanced Functional Polymer CompositesBeijing University of Chemical Technology Beijing China
| | - Sheng Zhang
- Beijing Key Laboratory of Advanced Functional Polymer CompositesBeijing University of Chemical Technology Beijing China
| | | |
Collapse
|
3
|
Chen LC, Chen KX, Huang XY, Lou J, Li JY, Deng SP. Vesicles from the self-assembly of the ultra-small fatty acids with amino acids under aqueous conditions. Colloids Surf B Biointerfaces 2019; 173:69-76. [PMID: 30267956 DOI: 10.1016/j.colsurfb.2018.07.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 06/15/2018] [Accepted: 07/03/2018] [Indexed: 11/19/2022]
Abstract
The properties of vesicles formed from the self-assembly of amphiphilic molecules can mimic the functionality of the natural lipid membranes. In this study, the self-assembly process of the amphiphilic structures formed by the interaction between ultra-small fatty acids [FAs, Cn (n = 4-8)] and amino acids (AAs) to generate vesicles under aqueous conditions were investigated in detail, along with the corresponding dynamic vesiculation mechanisms. Our results showed that the molar ratio of FAs/AAs and the chain length of FAs largely affected the structural characteristics and dispersion of vesicles. The detailed information about the entire size distributions and morphology of obtained vesicles were explored by the cryogenic transmission electron microscopy (Cryo-EM). Fourier transform infrared (FT-IR) spectra and quantum calculations suggested that the intermolecular hydrogen bond and electrostatic interactions between ultra-small molecules (FAs and AAs) during the aggregation processes were responsible for the formation of vesicles, where the hydrogen-bonding effect was dominant. Our findings shed new light on the effective and simple preparation of biological vesicles via ultra-small molecules self-assembly in aqueous solutions, which may have potential applications in vesicle physiology and drug delivery systems, and also get a mature understanding of the fundamental intermolecular interactions in life process.
Collapse
Affiliation(s)
- Li-Chun Chen
- College of Food & Biology Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang 310035, China; Zhejiang Provincial Key Lab for Chem &Bio Processing Technology of Agricultural Products, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310023, China
| | - Ke-Xian Chen
- College of Food & Biology Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang 310035, China
| | - Xi-Ying Huang
- Zhejiang Provincial Key Lab for Chem &Bio Processing Technology of Agricultural Products, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310023, China
| | - Jian Lou
- Zhejiang Provincial Key Lab for Chem &Bio Processing Technology of Agricultural Products, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310023, China
| | - Jing-Yuan Li
- Department of Physics, Zhejiang University, Hangzhou, 310027, China.
| | - Shao-Ping Deng
- College of Food & Biology Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang 310035, China.
| |
Collapse
|
4
|
A Fast and Cost-Effective Detection of Melamine by Surface Enhanced Raman Spectroscopy Using a Novel Hydrogen Bonding-Assisted Supramolecular Matrix and Gold-Coated Magnetic Nanoparticles. APPLIED SCIENCES-BASEL 2017. [DOI: 10.3390/app7050475] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
5
|
Chen LC, Wang HP, Deng YH, Deng SP. Vesicle formation by proton transfer driven short-tailed fatty acids of C4-C8 chain length in water. SOFT MATTER 2017; 13:1291-1298. [PMID: 28106900 DOI: 10.1039/c6sm02307j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ultrashort single-chain fatty acids self-assemble to form vesicles under certain proton-driven conditions. The protonation provides a larger charge area around the hydrophilic carbonyl headgroups, and proton shift as the key driving parameter was studied. The ultrashort fatty acids (C4-C8) formed stable unilamellar vesicles predominantly through out the whole range of tested pH levels (6.5-9.5). A proton-driven self-assembly process and effects on the phase transition were characterized by dynamic light scattering, transmission electron microscopy and cryo-transmission electron microscopy. In particular, we studied in greater detail the molecular packing characteristics of FA vesicles for geometric reasons and the protonation effect changes the molecular surface charge and further carboxylic acid headgroup motion. This study enhances the understanding of the physicochemical specificity of these membrane vesicles, and may facilitate the alteration of membrane function caused by FAs.
Collapse
Affiliation(s)
- Li-Chun Chen
- College of Food & Biology Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang 310035, China. and Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Agricultural Products, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310023, China
| | - Hong-Peng Wang
- Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Agricultural Products, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310023, China
| | - Yu-Hao Deng
- Zhejiang Provincial Key Lab for Chem & Bio Processing Technology of Agricultural Products, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310023, China
| | - Shao-Ping Deng
- College of Food & Biology Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang 310035, China.
| |
Collapse
|
6
|
Li J, Liu K, Han Y, Tang BZ, Huang J, Yan Y. Fabrication of Propeller-Shaped Supra-amphiphile for Construction of Enzyme-Responsive Fluorescent Vesicles. ACS APPLIED MATERIALS & INTERFACES 2016; 8:27987-27995. [PMID: 27668305 DOI: 10.1021/acsami.6b08620] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Propeller-shaped molecules have been recognized to display fantastic AIE (aggregation induced emission), but they can hardly self-assemble into nanostructures. Herein, we for the first time report that ionic complexation between a water-soluble tetrapheneyl derivative and an enzyme substrate in aqueous media produces a propeller-shaped supra-amphiphile that self-assembles into enzyme responsive fluorescent vesicles. The supra-amphiphile was fabricated upon complexation between a water-soluble propeller-shaped AIE luminogen TPE-BPA and myristoylcholine chloride (MChCl) in aqueous media. MChCl filled in the intramolecular voids of propeller-shaped TPE-BPA upon supra-amphiphile formation, which endows the supra-amphiphile superior self-assembling ability to the component molecules thus leading to the formation of fluorescent vesicles. Because MChCl is the substrate of cholinesterases, the vesicles dissemble in the presence of cholinesterases, and the fluorescent intensity can be correlated to the level of enzymes. The resulting fluorescent vesicles may be used to recognize the site of Alzheimer's disease, to encapsulate the enzyme inhibitor, and to release the inhibitor at the disease site.
Collapse
Affiliation(s)
- Jie Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
| | - Kaerdun Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
| | - Yuchun Han
- Institute of Chemistry, Chinese Academy of Sciences , Beijing, China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration & Reconstruction, The Hong Kong University of Science & Technology , Clear Water Bay, Kowloon, Hong Kong, China
| | - Jianbin Huang
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
| | - Yun Yan
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, China
| |
Collapse
|
7
|
Tian JN, Ge BQ, Shen YF, He YX, Chen ZX. Thermodynamics and Structural Evolution during a Reversible Vesicle-Micelle Transition of a Vitamin-Derived Bolaamphiphile Induced by Sodium Cholate. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:1977-1988. [PMID: 26860930 DOI: 10.1021/acs.jafc.5b05547] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Interaction of endogenous sodium cholate (SC) with dietary amphiphiles would induce structural evolution of the self-assembled aggregates, which inevitably affects the hydrolysis of fat in the gut. Current work mainly focused on the interaction of bile salts with classical double-layered phospholipid vesicles. In this paper, the thermodynamics and structural evolution during the interaction of SC with novel unilamellar vesicles formed from vitamin-derived zwitterionic bolaamphiphile (DDO) were characterized. It was revealed that an increased temperature and the presence of NaCl resulted in narrowed micelle-vesicle coexistence and enlarged the vesicle region. The coexistence of micelles and vesicles mainly came from the interaction of monomeric SC with DDO vesicles, whereas micellar SC contributed to the total solubilization of DDO vesicles. This research may enrich the thermodynamic mechanism behind the structure transition of the microaggregates formed by amphiphiles in the gut. It will also contribute to the design of food formulation and drug delivery system.
Collapse
Affiliation(s)
- Jun-Nan Tian
- College of Food and Biology Engineering, Zhejiang Gongshang University , Hangzhou, Zhejiang 310018, People's Republic of China
| | - Bing-Qiang Ge
- College of Food and Biology Engineering, Zhejiang Gongshang University , Hangzhou, Zhejiang 310018, People's Republic of China
| | - Yun-Feng Shen
- College of Food and Biology Engineering, Zhejiang Gongshang University , Hangzhou, Zhejiang 310018, People's Republic of China
| | - Yu-Xuan He
- College of Food and Biology Engineering, Zhejiang Gongshang University , Hangzhou, Zhejiang 310018, People's Republic of China
| | - Zhong-Xiu Chen
- College of Food and Biology Engineering, Zhejiang Gongshang University , Hangzhou, Zhejiang 310018, People's Republic of China
| |
Collapse
|
8
|
Jin Y, Xia Y, Wang S, Yan L, Zhou Y, Fan J, Song B. Concentration-dependent and light-responsive self-assembly of bolaamphiphiles bearing α-cyanostilbene based photochromophore. SOFT MATTER 2015; 11:798-805. [PMID: 25503396 DOI: 10.1039/c4sm02392g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this paper, a new bolaamphiphile bearing 1-cyano-1,2-bis(phenyl)ethene (CNBE) has been synthesized. The self-assembly of this molecule in aqueous solution is concentration-dependent. Two distinct morphologies, monomolecular layered lamellas and helical nanofibres have been obtained with the as-prepared molecular configuration. Note worthily, the helical nanofibres provide an experimental evidence for the pure twisted structure in the liquid crystals, which is theoretically proposed by De Gennes. Due to the photoisomerization of CNBE, the self-assembled nanostructures undergo morphological changes upon irradiation. Although various nanostructures were observed in the solution-state, only nanofibres were obtained after the solution was cast on a substrate, which was attributed to a strong dewetting effect. This work illustrates concentration-dependent and light-responsive self-assembly and provides a novel avenue for fabricating smart soft materials.
Collapse
Affiliation(s)
- Yingzhi Jin
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | | | | | | | | | | | | |
Collapse
|
9
|
Bhattacharjee S, Bhattacharya S. Orotic acid as a useful supramolecular synthon for the fabrication of an OPV based hydrogel: stoichiometry dependent injectable behavior. Chem Commun (Camb) 2015; 51:6765-8. [DOI: 10.1039/c5cc01002k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A multi-stimuli responsive, vesicular, two-component, injectable hydrogel has been reported.
Collapse
Affiliation(s)
| | - Santanu Bhattacharya
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore
- India
- Jawaharlal Nehru Centre for Advanced Scientific Research
| |
Collapse
|
10
|
Francisco V, Garcia-Rio L. Interaction of bolaform surfactants with p-sulfonatocalix[4]arene: the role of two positive charges in the binding. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:6748-6755. [PMID: 24845955 DOI: 10.1021/la501337c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The inclusion binding manners of bolaform surfactants of type C(n)R6(2+) 2Br(-) with different spacer lengths (n = 6, 12) and terminal headgroup volumes (R = methyl, ethyl) by p-sulfonatocalix[4]arene were studied. The combination of ITC parameters (binding constants and complexation enthalpy and entropy) and NMR chemical shifts and NOE cross-peaks obtained upon complexation allows us to propose different binding modes. The results point out that the spacer length has an influence on the binding stoichiometry. The bolaforms with larger spacer lengths between polar head groups enable the formation of 2:1 complexes in addition to 1:1, while with the shorter spacer they form only 1:1 complexes. On the other hand, the formation of 1:1 complexes is not affected by the headgroup volume or the spacer length of the bolaform. Unexpectedly, a complex binding mode was observed where both positive charged terminal groups of the bolaform are accommodated in the cavity of the calixarene. The inclusion of both terminal groups of the guests can be related to its own structure but also evidence the high flexibility of the calixarene.
Collapse
Affiliation(s)
- Vitor Francisco
- Departamento de Química Física, Centro de Investigación en Química Biológica y Materiales Moleculares (CIQUS), Universidad de Santiago de Compostela , 15782 Santiago de Compostela, Spain
| | | |
Collapse
|
11
|
Cao C, Wang QB, Tang LJ, Ge BQ, Chen ZX, Deng SP. Chain-Length-Dependent Autocatalytic Hydrolysis of Fatty Acid Anhydrides in Polyethylene Glycol. J Phys Chem B 2014; 118:3461-8. [DOI: 10.1021/jp4125233] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cao Cao
- College of Food & Biology Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang 310035, China
| | - Qing-Biao Wang
- College of Food & Biology Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang 310035, China
| | - Lin-Jun Tang
- College of Food & Biology Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang 310035, China
| | - Bing-Qiang Ge
- College of Food & Biology Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang 310035, China
| | - Zhong-Xiu Chen
- College of Food & Biology Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang 310035, China
| | - Shao-Ping Deng
- College of Food & Biology Engineering, Zhejiang Gongshang University, Hangzhou, Zhejiang 310035, China
| |
Collapse
|
12
|
Stern A, Guidotti M, Shaubi E, Popov M, Linder C, Heldman E, Grinberg S. Steric environment around acetylcholine head groups of bolaamphiphilic nanovesicles influences the release rate of encapsulated compounds. Int J Nanomedicine 2014; 9:561-74. [PMID: 24531296 PMCID: PMC3901739 DOI: 10.2147/ijn.s53563] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Two bolaamphiphilic compounds with identical acetylcholine (ACh) head groups, but with different lengths of an alkyl chain pendant adjacent to the head group, as well as differences between their hydrophobic skeleton, were investigated for their ability to self-assemble into vesicles that release their encapsulated content upon hydrolysis of their head groups by acetylcholinesterase (AChE). One of these bolaamphiphiles, synthesized from vernolic acid, has an alkyl chain pendant of five methylene groups, while the other, synthesized from oleic acid, has an alkyl chain pendant of eight methylene groups. Both bolaamphiphiles formed stable spherical vesicles with a diameter of about 130 nm. The ACh head groups of both bolaamphiphiles were hydrolyzed by AChE, but the hydrolysis rate was significantly faster for the bolaamphiphile with the shorter aliphatic chain pendant. Likewise, upon exposure to AChE, vesicles made from the bolaamphiphile with the shorter alkyl chain pendant released their encapsulated content faster than vesicles made from the bolaamphiphile with the longer alkyl chain pendant. Our results suggest that the steric environment around the ACh head group of bolaamphiphiles is a major factor affecting the hydrolysis rate of the head groups by AChE. Attaching an alkyl chain to the bolaamphiphile near the ACh head group allows self-assembled vesicles to form with a controlled release rate of the encapsulated materials, whereas shorter alkyl chains enable a faster head group hydrolysis, and consequently faster release, than longer alkyl chains. This principle may be implemented in the design of bolaamphiphiles for the formation of vesicles for drug delivery with desired controlled release rates.
Collapse
Affiliation(s)
- Avital Stern
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Matteo Guidotti
- Istituto di Scienze e Tecnologie Molecolari-CNR, Milano, Italy
| | - Eleonora Shaubi
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Mary Popov
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Charles Linder
- Zuckerberg Water Institute and Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Eliahu Heldman
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Sarina Grinberg
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| |
Collapse
|
13
|
Imura T, Morita T, Fukuoka T, Ryu M, Igarashi K, Hirata Y, Kitamoto D. Spontaneous vesicle formation from sodium salt of acidic sophorolipid and its application as a skin penetration enhancer. J Oleo Sci 2014; 63:141-7. [PMID: 24420066 DOI: 10.5650/jos.ess13117] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In this study, spontaneous vesicle formation from the sodium salt of acidic sophorolipid (SLNa) was observed, and its potential application as a skin penetration enhancer for triterpene glycosides extracted from the fruits of Siraitia grosvenorii Swingle was then investigated. Dynamic light scattering (DLS) measurements of the SLNa assemblies prepared by the gentle mixing of SLNa with water (1%) showed their hydrodynamic radius (Rh) to be 96.2 nm, and their structure was assigned to be vesicles by freeze-fracture electron microscopy (FF-TEM). DLS and FF-TEM also revealed that the size of the vesicles increased with an increase in the concentration of the triterpene glycosides, indicating that the triterpene glycosides were incorporated into the SLNa vesicles. The results of an in vitro skin permeation assay, after loading the SLNa vesicles on a 3D cultured skin model, showed that the amount of SLNa that penetrated though the skin model increased with time. It was also found that the amount of permeated mogroside, which is the main active component of triterpene glycosides, was significantly enhanced by the SLNa vesicle formulation. These results clearly demonstrated that spontaneously formed vesicles composed of the bolaamphiphile SLNa are useful for application as penetration enhancers for active ingredients such as mogroside V.
Collapse
Affiliation(s)
- Tomohiro Imura
- Research Institute for Innovation in Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST)
| | | | | | | | | | | | | |
Collapse
|
14
|
Sun LH, Sun YL, Yang LJ, Zhang J, Chen ZX. Controllable self-assembly of sodium caseinate with a zwitterionic vitamin-derived bolaamphiphile. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:10582-10589. [PMID: 24107219 DOI: 10.1021/jf403538y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The control of self-assembly of sodium caseinate (SC) including the formation of mixed layers, microspheres, or nanoparticles is highly relevant to the microstructure of food and the design of promising drug delivery systems. In this paper, we designed a structure-switchable zwitterionic bolaamphiphile, 1,12-diaminododecanediorotate (DDO), from orotic acid, which has special binding sites and can guide the self-assembly of SC. Complexation between SC and DDO was investigated using dynamic light scattering, transmission electron microscopy, differential scanning calorimetry, and fluorescence spectra measurements. Monomeric DDO was bound to the negatively charged sites on the SC micelle and made the structure of SC more compact with decreased electrostatic repulsion between the head groups. Vesicular DDO led to reassociation of vesicles with enlarged size via preferable hydrophobic interactions. Moreover, the aggregation between SC and DDO was found to be temperature-dependent and reversible. This research provides an effective way to control the reversible self-assembly of SC by the zwitterionic vitamin-derived bolaamphiphile.
Collapse
Affiliation(s)
- Li-Hui Sun
- Department of Food Quality and Safety and ‡Department of Applied Chemistry, College of Food & Biology Engineering, Zhejiang Gongshang University , Hangzhou, Zhejiang 310035, People's Republic of China
| | | | | | | | | |
Collapse
|
15
|
Affiliation(s)
- Yang Fan
- a College of Chemistry and Chemical Engineering, Xinyang Normal University , Xinyang , 464000 , P.R. China
| | - Zijuan Yang
- a College of Chemistry and Chemical Engineering, Xinyang Normal University , Xinyang , 464000 , P.R. China
| | - Xu Zhang
- b Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou , 350002 , P.R. China
| | - Xinhua Cao
- a College of Chemistry and Chemical Engineering, Xinyang Normal University , Xinyang , 464000 , P.R. China
| |
Collapse
|
16
|
Sun YL, Wang SS, Han X, Chen ZX. Realization of the reversible vesicle-micelle transition of vitamin-derived bolaamphiphiles by heat change monitoring. J Phys Chem B 2012; 116:12372-80. [PMID: 22994976 DOI: 10.1021/jp3071184] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The real-time energetics involved in the structural change of a zwitterionic vitamin-derived bolaamphiphiles (DDO) vesicles, which were induced by conventional surfactants, such as hexadecyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS), and Triton X-100 (TX100), was characterized by isothermal titration calorimetry (ITC). Interactions of both CTAB and SDS with DDO were accompanied with considerable heat release whereas the interaction energetics between TX-100 and the vesicles were small. However, the transition of DDO vesicles to micelles did occur upon the addition of all of the three surfactants. Fine inflection points were observed in heat flow enthalpograms, which indicated systematically the change of vesicle structure. By monitoring the interaction of CTAB with DDO, we found that heat release kept constant over a certain concentration range at higher temperatures. The repairing effect of heating was revealed and a reversible transition from micelles to vesicles of DDO was thus realized. Further encapsulation of fluorescein in DDO vesicles proved that the reversible vesicle-micelle transition was controllable. This research demonstrates that ITC combined with complementary analytical methods such as dynamic light scattering (DLS) and transmission electron microscopy (TEM) helps to get the real-time information of the structural changes of vesicles. It also shows that these synthetic novel bolaamphiphiles offer great promise for designing controllable release system.
Collapse
Affiliation(s)
- Yu-Long Sun
- Department of Food Quality and Safety, Zhejiang Gongshang University, Hangzhou, Zhejiang 310035, P. R. China
| | | | | | | |
Collapse
|
17
|
Kashyap S, Jayakannan M. Amphiphilic Diblocks Sorting into Multivesicular Bodies and Their Fluorophore Encapsulation Capabilities. J Phys Chem B 2012; 116:9820-31. [DOI: 10.1021/jp304121d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Smita Kashyap
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Dr. Homi Bhabha Road, Pune 411008, Maharashtra, India
| | - M. Jayakannan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Dr. Homi Bhabha Road, Pune 411008, Maharashtra, India
| |
Collapse
|
18
|
Ghai R, Falconer RJ, Collins BM. Applications of isothermal titration calorimetry in pure and applied research--survey of the literature from 2010. J Mol Recognit 2012; 25:32-52. [PMID: 22213449 DOI: 10.1002/jmr.1167] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Isothermal titration calorimetry (ITC) is a biophysical technique for measuring the formation and dissociation of molecular complexes and has become an invaluable tool in many branches of science from cell biology to food chemistry. By measuring the heat absorbed or released during bond formation, ITC provides accurate, rapid, and label-free measurement of the thermodynamics of molecular interactions. In this review, we survey the recent literature reporting the use of ITC and have highlighted a number of interesting studies that provide a flavour of the diverse systems to which ITC can be applied. These include measurements of protein-protein and protein-membrane interactions required for macromolecular assembly, analysis of enzyme kinetics, experimental validation of molecular dynamics simulations, and even in manufacturing applications such as food science. Some highlights include studies of the biological complex formed by Staphylococcus aureus enterotoxin C3 and the murine T-cell receptor, the mechanism of membrane association of the Parkinson's disease-associated protein α-synuclein, and the role of non-specific tannin-protein interactions in the quality of different beverages. Recent developments in automation are overcoming limitations on throughput imposed by previous manual procedures and promise to greatly extend usefulness of ITC in the future. We also attempt to impart some practical advice for getting the most out of ITC data for those researchers less familiar with the method.
Collapse
Affiliation(s)
- Rajesh Ghai
- Institute for Molecular Bioscience (IMB), University of Queensland, St. Lucia, Queensland, 4072, Australia
| | | | | |
Collapse
|
19
|
Meister A, Blume A. Single-Chain Bolaphospholipids. ADVANCES IN PLANAR LIPID BILAYERS AND LIPOSOMES VOLUME 16 2012. [DOI: 10.1016/b978-0-12-396534-9.00004-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
20
|
Ośmiałowski B, Kolehmainen E, Kauppinen R, Kowalska M. Tuning the hydrogen-bonding strength in 2,6-bis(cycloalkylcarbonylamino)pyridine assemblies by variable flexibility. Association constants measured by hydrogen-bonded vs. non-hydrogen-bonded protons. Supramol Chem 2011. [DOI: 10.1080/10610278.2011.575470] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|