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Castellucci N, Sartor G, Calonghi N, Parolin C, Falini G, Tomasini C. A peptidic hydrogel that may behave as a "Trojan Horse". Beilstein J Org Chem 2013; 9:417-24. [PMID: 23503149 PMCID: PMC3596052 DOI: 10.3762/bjoc.9.44] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Accepted: 01/30/2013] [Indexed: 01/27/2023] Open
Abstract
A physical hydrogel prepared with the low-molecular-weight hydrogelator (LMWHG) CH2(C3H6CO-L-Phe-D-Oxd-OH)2 and water/ethanol mixture was applied as a potential “Trojan Horse” carrier into cells. By SEM and XRD analysis we could demonstrate that a fibrous structure is present in the xerogel, making a complex network. The gelator is derived from α-amino acids (Thr, Phe) and a fatty acid (azelaic acid) and is biocompatible: it was dosed to IGROV-1 cells, which internalized it, without significantly affecting the cell proliferation. To check the internalization process by confocal microscopy, fluorescent hydrogels were prepared, introducing the fluorescent dansyl moiety into the mixture.
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Affiliation(s)
- Nicola Castellucci
- Dipartimento di Chimica "Ciamician", Università di Bologna, Via Selmi 2, I-40126 Bologna, Italy
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102
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Maity I, Rasale DB, Das AK. Exploiting a self-assembly driven dynamic nanostructured library. RSC Adv 2013. [DOI: 10.1039/c3ra22401e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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103
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Rasale DB, Maity I, Konda M, Das AK. Peptide self-assembly driven by oxo-ester mediated native chemical ligation. Chem Commun (Camb) 2013; 49:4815-7. [DOI: 10.1039/c3cc41475b] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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104
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Tomasini C, Castellucci N. Peptides and peptidomimetics that behave as low molecular weight gelators. Chem Soc Rev 2013; 42:156-72. [DOI: 10.1039/c2cs35284b] [Citation(s) in RCA: 235] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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105
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Maiti DK, Banerjee A. A Synthetic Amino Acid Residue Containing A New Oligopeptide-Based Photosensitive Fluorescent Organogel. Chem Asian J 2012; 8:113-20. [DOI: 10.1002/asia.201200617] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 08/09/2012] [Indexed: 12/17/2022]
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106
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Nanda J, Adhikari B, Basak S, Banerjee A. Formation of Hybrid Hydrogels Consisting of Tripeptide and Different Silver Nanoparticle-Capped Ligands: Modulation of the Mechanical Strength of Gel Phase Materials. J Phys Chem B 2012; 116:12235-44. [DOI: 10.1021/jp306262t] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Jayanta Nanda
- Department of Biological Chemistry, Indian Association of Cultivation of Science, Jadavpur, Kolkata-
700032, India
| | - Bimalendu Adhikari
- Department of Biological Chemistry, Indian Association of Cultivation of Science, Jadavpur, Kolkata-
700032, India
| | - Shibaji Basak
- Department of Biological Chemistry, Indian Association of Cultivation of Science, Jadavpur, Kolkata-
700032, India
| | - Arindam Banerjee
- Department of Biological Chemistry, Indian Association of Cultivation of Science, Jadavpur, Kolkata-
700032, India
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107
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Wang H, Yang Z. Short-peptide-based molecular hydrogels: novel gelation strategies and applications for tissue engineering and drug delivery. NANOSCALE 2012; 4:5259-67. [PMID: 22814874 DOI: 10.1039/c2nr31149f] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Molecular hydrogels hold big potential for tissue engineering and controlled drug delivery. Our lab focuses on short-peptide-based molecular hydrogels formed by biocompatible methods and their applications in tissue engineering (especially, 3D cell culture) and controlled drug delivery. This feature article firstly describes our recent progresses of the development of novel methods to form hydrogels, including the strategy of disulfide bond reduction and assistance with specific protein-peptide interactions. We then introduce the applications of our hydrogels in fields of controlled stem cell differentiation, cell culture, surface modifications of polyester materials by molecular self-assembly, and anti-degradation of recombinant complex proteins. A novel molecular hydrogel system of hydrophobic compounds that are only formed by hydrolysis processes was also included in this article. The hydrogels of hydrophobic compounds, especially those of hydrophobic therapeutic agents, may be developed into a carrier-free delivery system for long term delivery of therapeutic agents. With the efforts in this field, we believe that molecular hydrogels formed by short peptides and hydrophobic therapeutic agents can be practically applied for 3D cell culture and long term drug delivery in near future, respectively.
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Affiliation(s)
- Huaimin Wang
- State Key Laboratory of Medicinal Chemical Biology and College of Life Sciences, Nankai University, Tianjin 300071, P. R. China
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108
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Xie M, Li H, Ye M, Zhang Y, Hu J. Peptide Self-Assembly on Mica under Ethanol-Containing Atmospheres: Effects of Ethanol on Epitaxial Growth of Peptide Nanofilaments. J Phys Chem B 2012; 116:2927-33. [DOI: 10.1021/jp2089438] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Muyun Xie
- Shanghai Institute of Applied
Physics, Chinese Academy of Sciences
- Graduate School of the Chinese Academy of Sciences
| | - Hai Li
- Shanghai Institute of Applied
Physics, Chinese Academy of Sciences
| | - Ming Ye
- Shanghai Institute of Applied
Physics, Chinese Academy of Sciences
| | - Yi Zhang
- Shanghai Institute of Applied
Physics, Chinese Academy of Sciences
| | - Jun Hu
- Shanghai Institute of Applied
Physics, Chinese Academy of Sciences
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109
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Li X, Yang C, Zhang Z, Wu Z, Deng Y, Liang G, Yang Z, Chen H. Folic acid as a versatile motif to construct molecular hydrogelators through conjugations with hydrophobic therapeutic agents. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm35329f] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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110
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Roy S, Kumar Maiti D, Panigrahi S, Basak D, Banerjee A. A new hydrogel from an amino acid-based perylene bisimide and its semiconducting, photo-switching behaviour. RSC Adv 2012. [DOI: 10.1039/c2ra21319b] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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111
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Roy S, Banerjee A. Functionalized single walled carbon nanotube containing amino acid based hydrogel: a hybrid nanomaterial. RSC Adv 2012. [DOI: 10.1039/c2ra00763k] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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112
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Muro-Small ML, Chen J, McNeil AJ. Dissolution parameters reveal role of structure and solvent in molecular gelation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:13248-13253. [PMID: 21958411 DOI: 10.1021/la202702r] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The relationship between thermodynamic dissolution parameters (enthalpy and entropy) and gelation ability was examined for two different classes of compounds in three different solvent systems. In total, 11 dipeptides and 19 pyridines were synthesized and screened for gelation in aqueous and organic solvents, respectively. The dissolution parameters were determined from the variable-temperature solubilities using the van't Hoff equation. These studies revealed that the majority of gelators had higher dissolution enthalpies and entropies compared to nongelators, consistent with the notion that gelators have stronger intermolecular interactions and more order in the solid state. The dissolution parameters were also found to be solvent-dependent, suggesting that solvent-solute interactions are also important in gelation. Overall, these results indicate that converting nongelators into gelators is attainable when structural modifications or a change in solvent lead to increases in the dissolution parameters.
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Affiliation(s)
- Maria L Muro-Small
- Department of Chemistry and Macromolecular Science and Engineering Program, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
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113
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Ding L, Wang S, Wu W, Hu Y, Yang C, Tan M, Kong D, Yang Z. A Supramolecular Hydrogel Inspired by Elastin. CHINESE J CHEM 2011. [DOI: 10.1002/cjoc.201180378] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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114
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Zarzhitsky S, Rapaport H. The interactions between doxorubicin and amphiphilic and acidic β-sheet peptides towards drug delivery hydrogels. J Colloid Interface Sci 2011; 360:525-31. [DOI: 10.1016/j.jcis.2011.04.091] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2011] [Revised: 04/20/2011] [Accepted: 04/21/2011] [Indexed: 10/18/2022]
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115
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Chang G, Ci T, Yu L, Ding J. Enhancement of the fraction of the active form of an antitumor drug topotecan via an injectable hydrogel. J Control Release 2011; 156:21-7. [PMID: 21777632 DOI: 10.1016/j.jconrel.2011.07.008] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2011] [Revised: 06/14/2011] [Accepted: 07/05/2011] [Indexed: 11/29/2022]
Abstract
Poly(D,L-lactic acid-co-glycolic acid)-b-poly(ethylene glycol)-b-poly(D,L-lactic acid-co-glycolic acid) (PLGA-PEG-PLGA) hydrogels were tried as implants to encapsulate antitumor drug topotecan (TPT), a derivative of camptothecin (CPT). Despite of water solubility of TPT, the in vitro release of this low-molecular-weight drug from hydrogels sustained for 5 days with only a mild initial burst. The antitumor efficacy of the released TPT was further validated in S180-bearing mice. Surprisingly, the fraction of the active lactone form of TPT was increased to above 50% in the hydrogel matrix, while the fraction was just about 10% in phosphate buffer saline under physiological pH at 37°C. This significant effect was interpreted not by the local acidic pH within the hydrogel, but by the increase of pK(a) of the carboxylate group of the open-ring form due to the hydrophobic interaction between the amphiphilic polymer and TPT. Theoretical analysis via a pK(a)-related mechanism was also performed, which was consistent with our experimental measurements. Hence, this study has revealed that an appropriate biomaterial could, via drug-material interactions, enhance the drug efficacy by increasing the active fraction of some drugs which exhibit a reversible conversion between the active and inactive structures.
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Affiliation(s)
- Guangtao Chang
- Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, Department of Macromolecular Science, Laboratory of Advanced Materials, Fudan University, Shanghai, China
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116
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Tang Y, Heaysman CL, Willis S, Lewis AL. Physical hydrogels with self-assembled nanostructures as drug delivery systems. Expert Opin Drug Deliv 2011; 8:1141-59. [PMID: 21619469 DOI: 10.1517/17425247.2011.588205] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
INTRODUCTION As an essential complement to chemically crosslinked hydrogels, drug delivery systems based on physical hydrogels with self-assembled nanostructures are gaining increasing attention, owing to potential advantages of reduced toxicity, convenience of in situ gel formation, stimuli-responsiveness, reversible sol-gel transition, and improved drug loading and delivery profiles. AREAS COVERED In this review, drug delivery systems based on physical hydrogels are discussed according to their self-assembled nanostructures, such as micelles, layer-by-layer constructs, supramolecular inclusion complexes, polyelectrolyte complexes and crystalline structures. The driving forces of the self-assembly include hydrophobic interaction, hydrogen bonding, electrostatic interaction, π-π stacking and weak van der Waals forces. Stimuli-responsive properties of physical hydrogels, including thermo- and pH-sensitivity, are considered with particular focus on self-assembled nanostructures. EXPERT OPINION Fabricating self-assembled nanostructures in drug delivery hydrogels, via physical interactions between polymer-polymer and polymer-drug, requires accurately controlled macro- or small molecular architecture and a comprehensive knowledge of the physicochemical properties of the therapeutics. A variety of nanostructures within hydrogels, with which payloads may interact, provide useful means to stabilize the drug form and control its release kinetics.
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Affiliation(s)
- Yiqing Tang
- Biocompatibles UK Ltd, Chapman House, Farnham, Surrey, UK.
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117
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Bakota EL, Wang Y, Danesh F, Hartgerink JD. Injectable multidomain peptide nanofiber hydrogel as a delivery agent for stem cell secretome. Biomacromolecules 2011; 12:1651-7. [PMID: 21417437 PMCID: PMC3150749 DOI: 10.1021/bm200035r] [Citation(s) in RCA: 140] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Peptide hydrogels show immense promise as therapeutic materials. Here we present a rationally designed multidomain peptide that self-assembles into nanofibers approximately 8 nm wide, 2 nm high, and micrometers in length in the presence of Mg(2+). At a concentration of 1% by weight, the peptide forms an extensive nanofibers network that results in a physically cross-linked viscoelastic hydrogel. This hydrogel undergoes shear thinning and then quickly recovers nearly 100% of its elastic modulus when the shearing force is released, making it ideal for use as an injectable material. When placed in the presence of human embryonic stem cells (ESCs), the nanofibrous hydrogel acts like a sponge, soaking up the vast array of growth factors and cytokines released by the ESCs. The peptide hydrogel sponge can then be removed from the presence of the ESCs and placed in a therapeutic environment, where it can subsequently release these components. In vitro experiments demonstrate that release of stem cell secretome from these hydrogels in the presence of glomerular epithelial cells treated with high glucose significantly decreased protein permeability in a model of diabetes-induced kidney injury. Tracking experiments were then performed to determine the fate of the hydrogel upon injection in vivo. Hydrogels labeled with a Gd(3+) MRI contrast agent were injected into the abdominal cavity of mice and found to remain localized over 24 h. This implies that the hydrogel possesses sufficient rigidity to remain localized and release stem cell secretome over time rather than immediately dissolving in the abdominal cavity. Together, the shear thinning and recovery as observed by rheometry as well as secretome absorption and release in vivo demonstrate the potential of the nanofibrous multidomain peptide hydrogel as an injectable delivery agent.
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Affiliation(s)
- Erica L. Bakota
- Department of Chemistry, Rice University, 6100 South Main St., Houston, TX 77005
| | - Yin Wang
- Department of Nephrology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX 77030
| | - Farhad Danesh
- Department of Nephrology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX 77030
| | - Jeffrey D. Hartgerink
- Department of Chemistry, Rice University, 6100 South Main St., Houston, TX 77005
- Department of Bioengineering, Rice University, 6100 South Main St., Houston, TX 77005
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118
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Micklitsch CM, Knerr PJ, Branco MC, Nagarkar R, Pochan DJ, Schneider JP. Zinc-triggered hydrogelation of a self-assembling β-hairpin peptide. Angew Chem Int Ed Engl 2011; 50:1577-9. [PMID: 21308908 PMCID: PMC8366679 DOI: 10.1002/anie.201006652] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2010] [Indexed: 01/10/2023]
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119
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Yang Z, Zhao X. A 3D model of ovarian cancer cell lines on peptide nanofiber scaffold to explore the cell-scaffold interaction and chemotherapeutic resistance of anticancer drugs. Int J Nanomedicine 2011; 6:303-10. [PMID: 21383855 PMCID: PMC3044183 DOI: 10.2147/ijn.s15279] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Indexed: 02/05/2023] Open
Abstract
RADA16-I peptide hydrogel, a type of nanofiber scaffold derived from self-assembling peptide RADA16-I, has been extensively applied to regenerative medicine and tissue repair in order to develop novel nanomedicine systems. In this study, using RADA16-I peptide hydrogel, a three-dimensional (3D) cell culture model was fabricated for in vitro culture of three ovarian cancer cell lines. Firstly, the peptide nanofiber scaffold was evaluated by transmission electron microscopy and atom force microscopy. Using phase contrast microscopy, the appearance of the representative ovarian cancer cells encapsulated in RADA16-I peptide hydrogel on days 1, 3, and 7 in 24-well Petri dishes was illustrated. The cancer cell-nanofiber scaffold construct was cultured for 5 days, and the ovarian cancer cells had actively proliferative potential. The precultured ovarian cancer cells exhibited nearly similar adhesion properties and invasion potentials in vitro between RADA16-I peptide nanofiber and type I collagen, which suggested that RADA16-I peptide hydrogel had some similar characteristics to type I collagen. The precultured ovarian cancer cells had two-fold to five-fold higher anticancer drug resistance than the conventional two-dimensional Petri dish culture. So the 3D cell model on peptide nanofiber scaffold is an optimal type of cell pattern for anticancer drug screening and tumor biology.
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Affiliation(s)
- Zehong Yang
- Nanomedicine Laboratory, West China Hospital and Institute for Nanobiomedical Technology and Membrane Biology, Sichuan University, Chengdu, People’s Republic of China
| | - Xiaojun Zhao
- Nanomedicine Laboratory, West China Hospital and Institute for Nanobiomedical Technology and Membrane Biology, Sichuan University, Chengdu, People’s Republic of China
- Center for Biomedical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
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120
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Micklitsch CM, Knerr PJ, Branco MC, Nagarkar R, Pochan DJ, Schneider JP. Zinc-Triggered Hydrogelation of a Self-Assembling β-Hairpin Peptide. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201006652] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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121
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Truong WT, Su Y, Meijer JT, Thordarson P, Braet F. Self-Assembled Gels for Biomedical Applications. Chem Asian J 2010; 6:30-42. [DOI: 10.1002/asia.201000592] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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122
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Wang J, Wang H, Song Z, Kong D, Chen X, Yang Z. A hybrid hydrogel for efficient removal of methyl violet from aqueous solutions. Colloids Surf B Biointerfaces 2010; 80:155-60. [DOI: 10.1016/j.colsurfb.2010.05.042] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Revised: 05/26/2010] [Accepted: 05/28/2010] [Indexed: 11/27/2022]
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123
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Terech P, Aymonier C, Loppinet-Serani A, Bhat S, Banerjee S, Das R, Maitra U, Del Guerzo A, Desvergne JP. Structural Relationships in 2,3-Bis-n-decyloxyanthracene and 12-Hydroxystearic Acid Molecular Gels and Aerogels Processed in Supercritical CO2. J Phys Chem B 2010; 114:11409-19. [DOI: 10.1021/jp104818x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pierre Terech
- INAC/SPrAM, UMR 5819 (CEA-CNRS-UJF) CEA-Grenoble, 38054 Grenoble cedex 9, France, CNRS, Université de Bordeaux, ICMCB, 87 Avenue du Dr. Albert Schweitzer, 33608 Pessac Cedex, France, Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India, and Groupe Nanostructures Organiques, Institut des Sciences Moléculaires UMR 5525, Université Bordeaux 1, CNRS, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Cyril Aymonier
- INAC/SPrAM, UMR 5819 (CEA-CNRS-UJF) CEA-Grenoble, 38054 Grenoble cedex 9, France, CNRS, Université de Bordeaux, ICMCB, 87 Avenue du Dr. Albert Schweitzer, 33608 Pessac Cedex, France, Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India, and Groupe Nanostructures Organiques, Institut des Sciences Moléculaires UMR 5525, Université Bordeaux 1, CNRS, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Anne Loppinet-Serani
- INAC/SPrAM, UMR 5819 (CEA-CNRS-UJF) CEA-Grenoble, 38054 Grenoble cedex 9, France, CNRS, Université de Bordeaux, ICMCB, 87 Avenue du Dr. Albert Schweitzer, 33608 Pessac Cedex, France, Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India, and Groupe Nanostructures Organiques, Institut des Sciences Moléculaires UMR 5525, Université Bordeaux 1, CNRS, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Shreedhar Bhat
- INAC/SPrAM, UMR 5819 (CEA-CNRS-UJF) CEA-Grenoble, 38054 Grenoble cedex 9, France, CNRS, Université de Bordeaux, ICMCB, 87 Avenue du Dr. Albert Schweitzer, 33608 Pessac Cedex, France, Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India, and Groupe Nanostructures Organiques, Institut des Sciences Moléculaires UMR 5525, Université Bordeaux 1, CNRS, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Supratim Banerjee
- INAC/SPrAM, UMR 5819 (CEA-CNRS-UJF) CEA-Grenoble, 38054 Grenoble cedex 9, France, CNRS, Université de Bordeaux, ICMCB, 87 Avenue du Dr. Albert Schweitzer, 33608 Pessac Cedex, France, Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India, and Groupe Nanostructures Organiques, Institut des Sciences Moléculaires UMR 5525, Université Bordeaux 1, CNRS, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Rajat Das
- INAC/SPrAM, UMR 5819 (CEA-CNRS-UJF) CEA-Grenoble, 38054 Grenoble cedex 9, France, CNRS, Université de Bordeaux, ICMCB, 87 Avenue du Dr. Albert Schweitzer, 33608 Pessac Cedex, France, Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India, and Groupe Nanostructures Organiques, Institut des Sciences Moléculaires UMR 5525, Université Bordeaux 1, CNRS, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Uday Maitra
- INAC/SPrAM, UMR 5819 (CEA-CNRS-UJF) CEA-Grenoble, 38054 Grenoble cedex 9, France, CNRS, Université de Bordeaux, ICMCB, 87 Avenue du Dr. Albert Schweitzer, 33608 Pessac Cedex, France, Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India, and Groupe Nanostructures Organiques, Institut des Sciences Moléculaires UMR 5525, Université Bordeaux 1, CNRS, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - André Del Guerzo
- INAC/SPrAM, UMR 5819 (CEA-CNRS-UJF) CEA-Grenoble, 38054 Grenoble cedex 9, France, CNRS, Université de Bordeaux, ICMCB, 87 Avenue du Dr. Albert Schweitzer, 33608 Pessac Cedex, France, Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India, and Groupe Nanostructures Organiques, Institut des Sciences Moléculaires UMR 5525, Université Bordeaux 1, CNRS, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Jean-Pierre Desvergne
- INAC/SPrAM, UMR 5819 (CEA-CNRS-UJF) CEA-Grenoble, 38054 Grenoble cedex 9, France, CNRS, Université de Bordeaux, ICMCB, 87 Avenue du Dr. Albert Schweitzer, 33608 Pessac Cedex, France, Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India, and Groupe Nanostructures Organiques, Institut des Sciences Moléculaires UMR 5525, Université Bordeaux 1, CNRS, 351 Cours de la Libération, 33405 Talence Cedex, France
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124
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Zhao Y, Tanaka M, Kinoshita T, Higuchi M, Tan T. Self-assembling peptide nanofiber scaffolds for controlled release governed by gelator design and guest size. J Control Release 2010; 147:392-9. [PMID: 20709121 DOI: 10.1016/j.jconrel.2010.08.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2010] [Revised: 07/22/2010] [Accepted: 08/06/2010] [Indexed: 11/24/2022]
Abstract
The aim of this study was to develop controlled drug delivery by network scaffolds based on self-assembling peptide RADAFI and RADAFII. These two peptides self-assembled into interconnected nanofibrilar network structures with distinct physical morphologies. The hydrogels were also utilized for entrapment and release of some model guests, promising their future application as a drug delivery vehicle. Fickian diffusion controlled the release kinetics. Furthermore, the obtained release function was dependent on both rational design of the peptides used for hydrogel formation and choice of the entrapped molecules. On the basis of the striking different releases of these two peptide scaffolds, we suggested that guest size and lipophilicity influenced the release competitively. The release of RADAFI system was dominated by guest size, and the guest lipophilicity controlled the release behavior in RADAFII system. In a word, this work would potentially provide a spatially and temporally controlled delivery system for some functional drugs in the future.
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Affiliation(s)
- Ying Zhao
- Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
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125
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Wang H, Ren C, Song Z, Wang L, Chen X, Yang Z. Enzyme-triggered self-assembly of a small molecule: a supramolecular hydrogel with leaf-like structures and an ultra-low minimum gelation concentration. NANOTECHNOLOGY 2010; 21:225606. [PMID: 20453274 DOI: 10.1088/0957-4484/21/22/225606] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We report on the use of a phosphatase to assist the formation of leaf-like structures and a supramolecular hydrogel with an ultra-low minimum gelation concentration. The compound can gel water at a minimum gelation concentration of 0.01 wt%, which is the lowest gelation concentration reported up to now. The images obtained by transmission electron microscopy (TEM) reveal the existence of leaf-like structures serving as the matrix of the hydrogels. The stability of the hydrogels was studied and emission spectra were used to get information about the molecular packing in the leaf-like structures. Since lowering the concentration of the gelator decreases the toxicity of the resulting hydrogels, ultra-low concentration gels have potential uses as biocompatible biomaterials for, e.g., cell cultures, tissue engineering, and drug delivery.
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Affiliation(s)
- Huaimin Wang
- The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, People's Republic of China
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126
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Xu H, Das AK, Horie M, Shaik MS, Smith AM, Luo Y, Lu X, Collins R, Liem SY, Song A, Popelier PLA, Turner ML, Xiao P, Kinloch IA, Ulijn RV. An investigation of the conductivity of peptide nanotube networks prepared by enzyme-triggered self-assembly. NANOSCALE 2010; 2:960-966. [PMID: 20648293 DOI: 10.1039/b9nr00233b] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We demonstrate that nanotubular networks formed by enzyme-triggered self-assembly of Fmoc-L3 (9-fluorenylmethoxycarbonyl-tri-leucine) show significant charge transport. FT-IR, fluorescence spectroscopy and wide angle X-ray scattering (WAXS) data confirm formation of beta-sheets that are locked together viapi-stacking interactions. Molecular dynamics simulations confirmed the pi-pi stacking distance between fluorenyl groups to be 3.6-3.8 A. Impedance spectroscopy demonstrated that the nanotubular xerogel networks possess minimum sheet resistances of 0.1 MOmega/sq in air and 500 MOmega/sq in vacuum (pressure: 1.03 mbar) at room temperature, with the conductivity scaling linearly with the mass of peptide in the network. These materials may provide a platform to interface biological components with electronics.
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Affiliation(s)
- Haixia Xu
- School of Materials, The University of Manchester, Manchester, UK M1 7HS
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127
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Ikeda M, Ochi R, Wada A, Hamachi I. Supramolecular hydrogel capsule showing prostate specific antigen-responsive function for sensing and targeting prostate cancer cells. Chem Sci 2010. [DOI: 10.1039/c0sc00278j] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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