201
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Liu Y, Lei W, Chen T, Jin L, Sun G, Yin B. Poly(aryl ether) Dendrons with Monopyrrolotetrathiafulvalene Unit-Based Organogels exhibiting Gel-Induced Enhanced Emission (GIEE). Chemistry 2015; 21:15235-45. [DOI: 10.1002/chem.201502044] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Indexed: 01/06/2023]
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202
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Parveen R, Dastidar P. Easy Access to Supramolecular Gels of the Nonsteroidal Anti-inflammatory Drug Diflunisal: Synthesis, Characterization, and Plausible Biomedical Applications. Chem Asian J 2015; 10:2427-36. [DOI: 10.1002/asia.201500732] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Indexed: 01/16/2023]
Affiliation(s)
- Rumana Parveen
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S.C. Mullick Road Kolkata- 700032 West Bengal India
| | - Parthasarathi Dastidar
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S.C. Mullick Road Kolkata- 700032 West Bengal India
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203
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Guo Z, Gong R, Jiang Y, Wan X. Tetrapeptide-coumarin conjugate 3D networks based on hydrogen-bonded charge transfer complexes: gel formation and dye release. SOFT MATTER 2015; 11:6118-6124. [PMID: 26138931 DOI: 10.1039/c5sm00995b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Oligopeptide-based derivatives are important synthons for bio-based functional materials. In this article, a Gly-(L-Val)-Gly-(L-Val)-coumarin (GVGV-Cou) conjugate was synthesized, which forms 3D networks in ethanol. The gel nanostructures were characterized by UV-vis spectroscopy, FT-IR spectroscopy, X-ray diffraction (XRD), SEM and TEM. It is suggested that the formation of charge transfer (CT) complexes between the coumarin moieties is the main driving force for the gel formation. The capability of the gel to encapsulate and release dyes was explored. Both Congo Red (CR) and Methylene Blue (MB) can be trapped in the CT gel matrix and released over time. The present gel might be used as a functional soft material for guest encapsulation and release.
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Affiliation(s)
- Zongxia Guo
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P. R. China.
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204
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Li R, Shu C, Wang W, Wang X, Li H, Xu D, Zhong W. Encapsulation of 10-Hydroxy Camptothecin in Supramolecular Hydrogel as an Injectable Drug Delivery System. J Pharm Sci 2015; 104:2266-75. [DOI: 10.1002/jps.24481] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Revised: 03/26/2015] [Accepted: 04/13/2015] [Indexed: 01/01/2023]
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205
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Wu D, Du X, Shi J, Zhou J, Zhou N, Xu B. The first CD73-instructed supramolecular hydrogel. J Colloid Interface Sci 2015; 447:269-72. [PMID: 25524006 PMCID: PMC4369398 DOI: 10.1016/j.jcis.2014.11.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 11/19/2014] [Accepted: 11/20/2014] [Indexed: 10/24/2022]
Abstract
Enzymatic supramolecular hydrogelation is a simple, controllable, and novel strategy for preparation of soft colloidal materials, which allows the integration of self-assembly with enzyme associated biological processes. The development of more enzymes involve in hydrogelation is a subject of developing useful soft colloids. In this work, an ectoenzyme, CD73, was found to trigger the formation of nanofibers as matrices of hydrogels. CD73 is an important cell surface enzyme which converts extracellular adenosine monophosphate (AMP) to adenosine. It is broadly expressed in many cancer cells and participates in tumor growth. The successful application of CD73 in self-assembly and hydrogelation may provide new strategies for CD73-guided materials and therapies.
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Affiliation(s)
- Dongdong Wu
- Department of Chemistry, Brandeis University, 415 South St., Waltham, MA 02454, USA
| | - Xuewen Du
- Department of Chemistry, Brandeis University, 415 South St., Waltham, MA 02454, USA
| | - Junfeng Shi
- Department of Chemistry, Brandeis University, 415 South St., Waltham, MA 02454, USA
| | - Jie Zhou
- Department of Chemistry, Brandeis University, 415 South St., Waltham, MA 02454, USA
| | - Ning Zhou
- Department of Chemistry, Brandeis University, 415 South St., Waltham, MA 02454, USA
| | - Bing Xu
- Department of Chemistry, Brandeis University, 415 South St., Waltham, MA 02454, USA.
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206
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Tian R, Wang H, Niu R, Ding D. Drug delivery with nanospherical supramolecular cell penetrating peptide-taxol conjugates containing a high drug loading. J Colloid Interface Sci 2015; 453:15-20. [PMID: 25956129 DOI: 10.1016/j.jcis.2015.04.028] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 04/04/2015] [Accepted: 04/06/2015] [Indexed: 12/11/2022]
Abstract
HYPOTHESIS Supramolecular nanostructures via small molecule self-assembly hold great promise for controlled delivery of hydrophobic anticancer drugs. Particularly, taxol has recently been discovered to possess excellent self-assembly property, which may provide new opportunities to develop a new class of functional supramolecular nanomaterials for drug delivery application. EXPERIMENTS A cell penetrating peptide (CPP)-taxol conjugate (Taxol-CPP) was designed and synthesized. The self-assembling property of Taxol-CPP was investigated and the resultant nanomaterials were well characterized. Subsequently, the cytotoxicity of the Taxol-CPP after self-assembly against HepG2 cancer cells was evaluated. FINDINGS It is found that the Taxol-CPP possesses a high drug loading of 26.4% in each molecule, which is able to self-assemble into supramolecular nanospheres. By taking advantages of the self-assembly ability of taxol, Taxol-CPP supramolecular nanospheres with a mean size of around 130 nm can be obtained, composed of only the functional peptide (CPP) and the drug (taxol). Furthermore, we have demonstrated that the Taxol-CPP nanospheres do not compromise the taxol's potency, which can also be utilized as the carriers for co-delivery of another anticancer drug (doxorubicin).
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Affiliation(s)
- Ran Tian
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Huan-Hu-Xi Road, Tianjin 300060, PR China
| | - Huaimin Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, PR China
| | - Ruifang Niu
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Huan-Hu-Xi Road, Tianjin 300060, PR China.
| | - Dan Ding
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, PR China.
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207
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Tsai JLL, Zou T, Liu J, Chen T, Chan AOY, Yang C, Lok CN, Che CM. Luminescent platinum(ii) complexes with self-assembly and anti-cancer properties: hydrogel, pH dependent emission color and sustained-release properties under physiological conditions. Chem Sci 2015; 6:3823-3830. [PMID: 29218152 PMCID: PMC5707448 DOI: 10.1039/c4sc03635b] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 04/13/2015] [Indexed: 12/28/2022] Open
Abstract
Luminescent platinum(ii) complexes show anti-cancer and pH-dependent self-assembly and sustained-release properties under physiological conditions.
Supramolecular interactions are of paramount importance in biology and chemistry, and can be used to develop new vehicles for drug delivery. Recently, there is a surge of interest on self-assembled functional supramolecular structures driven by intermolecular metal–metal interactions in cellular conditions. Herein we report a series of luminescent Pt(ii) complexes [Pt(C^N^Npyr)(C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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NR)]+ [HC^N^Npyr = 2-phenyl-6-(1H-pyrazol-3-yl)-pyridine)] containing pincer type ligands having pyrazole moieties. These Pt(ii) complexes exert potent cytotoxicity to a panel of cancer cell lines including primary bladder cancer cells and display strong phosphorescence that is highly sensitive to the local environment. The self-assembly of these complexes is significantly affected by pH of the solution medium. Based on TEM, SEM, ESI-MS, absorption and emission spectroscopy, and fluorescence microscopy together with cell based assays, [Pt(C^N^Npyr)(C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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NR)]+ complexes were observed to self-assemble into orange phosphorescent polymeric aggregates driven by intermolecular Pt(ii)–Pt(ii) and ligand–ligand interactions in a low-pH physiological medium. Importantly, the intracellular assembly and dis-assembly of [Pt(C^N^Npyr)(C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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NR)]+ are accompanied by change of emission color from orange to green. These [Pt(C^N^Npyr)(C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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NR)]+ complexes accumulated in the lysosomes of cancer cells, increased the lysosomal membrane permeability and induced cell death. One of these platinum(ii) complexes formed hydrogels which displayed pH-responsive and sustained release properties, leading to low-pH-stimulated and time-dependent cytotoxicity towards cancer cells. These hydrogels can function as vehicles to deliver anti-cancer agent cargo, such as the bioactive natural products studied in this work.
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Affiliation(s)
- Johnson Lui-Lui Tsai
- State Key Laboratory of Synthetic Chemistry , Institute of Molecular Functional Materials , Chemical Biology Centre and Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China .
| | - Taotao Zou
- State Key Laboratory of Synthetic Chemistry , Institute of Molecular Functional Materials , Chemical Biology Centre and Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China . .,HKU Shenzhen Institute of Research and Innovation , Shenzhen 518053 , China
| | - Jia Liu
- State Key Laboratory of Synthetic Chemistry , Institute of Molecular Functional Materials , Chemical Biology Centre and Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China .
| | - Tianfeng Chen
- Department of Chemistry , Jinan University , Guangzhou 510632 , China
| | - Anna On-Yee Chan
- State Key Laboratory of Synthetic Chemistry , Institute of Molecular Functional Materials , Chemical Biology Centre and Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China .
| | - Chen Yang
- State Key Laboratory of Synthetic Chemistry , Institute of Molecular Functional Materials , Chemical Biology Centre and Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China . .,HKU Shenzhen Institute of Research and Innovation , Shenzhen 518053 , China
| | - Chun-Nam Lok
- State Key Laboratory of Synthetic Chemistry , Institute of Molecular Functional Materials , Chemical Biology Centre and Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China .
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry , Institute of Molecular Functional Materials , Chemical Biology Centre and Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China . .,HKU Shenzhen Institute of Research and Innovation , Shenzhen 518053 , China
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208
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Yu-Chun L, Shu-Min H, Jui-Wen C, Yu-Hao L, Hsin-Chieh L. Self-Assembled Nanomaterials Based on Perfluorophenyl-Capped Dipeptides. ACTA ACUST UNITED AC 2015. [DOI: 10.7763/ijcea.2015.v6.456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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209
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Saha A, Adamcik J, Bolisetty S, Handschin S, Mezzenga R. Fibrillar networks of glycyrrhizic acid for hybrid nanomaterials with catalytic features. Angew Chem Int Ed Engl 2015; 54:5408-12. [PMID: 25759108 DOI: 10.1002/anie.201411875] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Revised: 02/13/2015] [Indexed: 11/05/2022]
Abstract
Self-assembly of the naturally occurring sweetening agent, glycyrrhizic acid (GA) in water is studied by small-angle X-ray scattering and microscopic techniques. Statistical analysis on atomic force microscopy images reveals the formation of ultralong GA fibrils with uniform thickness of 2.5 nm and right-handed twist with a pitch of 9 nm, independently of GA concentration. Transparent nematic GA hydrogels are exploited to create functional hybrid materials. Two-fold and three-fold hybrids are developed by introducing graphene oxide (GO) and in situ-synthesized gold nanoparticles (Au NPs) in the hydrogel matrix for catalysis applications. In the presence of GO, the catalytic efficiency of Au NPs in the reduction of p-nitrophenol to p-aminophenol is enhanced by 2.5 times. Gold microplate single crystals are further synthesized in the GA hydrogel, expanding the scope of these hybrids and demonstrating their versatility in materials design.
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Affiliation(s)
- Abhijit Saha
- Laboratory of Food & Soft Materials Science, Institute of Food, Nutrition & Health, Department of Health Sciences & Technology, ETH Zürich, Schmelzbergstrasse 9, LFO E23, 8092 Zürich (Switzerland)
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210
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Saha A, Adamcik J, Bolisetty S, Handschin S, Mezzenga R. Fibrillar Networks of Glycyrrhizic Acid for Hybrid Nanomaterials with Catalytic Features. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411875] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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211
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Xue Q, Ren H, Xu C, Wang G, Ren C, Hao J, Ding D. Nanospheres of doxorubicin as cross-linkers for a supramolecular hydrogelation. Sci Rep 2015; 5:8764. [PMID: 25739554 PMCID: PMC4350081 DOI: 10.1038/srep08764] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 01/22/2015] [Indexed: 01/03/2023] Open
Abstract
In this study, we synthesized a peptide of Nap-GFFYGRGD, which could self-assemble into supramolecular nanofibers. The peptide itself could only form nanofibers but not hydrogels due to the relative weak inter-fiber interactions. The resulting nanofibers were then utilized as the vehicles for anticancer drug doxorubicin. It was found that the nanofibers of Nap-GFFYGRGD could not encapsulate doxorubicin, whereas the drug formed nanospheres, which were located at the surface of the nanofibers. Due to the electrostatic interactions between the negatively charged nanofibers and the positively charged doxorubicin nanospheres, the doxorubicin nanospheres were able to serve as a cross-linker to increase the inter-fiber interactions, leading to the formation of stable three-dimentional fiber networks and hydrogels. The resulting doxorubicin-peptide hydrogels were capable of releasing the drug in a sustained manner, which also showed comparable cytotoxicity as compared to free doxorubicin against a variety of cancer cell lines including HeLa and MCF-7 cancer cells. Therefore, this successful example using drug as the peptide nanofiber cross-linkers provided a new strategy for fabricating supramolecular hydrogelation for controlled delivery of anticancer drugs.
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Affiliation(s)
- Qiang Xue
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, P. R. China
| | - He Ren
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, P. R. China
| | - Chao Xu
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, P. R. China
| | - Gang Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin. 300071, P. R. China
| | - Chunhua Ren
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin. 300071, P. R. China
| | - Jihui Hao
- National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, P. R. China
| | - Dan Ding
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin. 300071, P. R. China
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212
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Dong R, Pang Y, Su Y, Zhu X. Supramolecular hydrogels: synthesis, properties and their biomedical applications. Biomater Sci 2015. [PMID: 26221932 DOI: 10.1039/c4bm00448e] [Citation(s) in RCA: 170] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
As a novel class of three-dimensional (3D) hydrophilic cross-linked polymers, supramolecular hydrogels not only display unique physicochemical properties (e.g., water-retention ability, drug loading capacity, biodegradability and biocompatibility, biostability) as well as specific functionalities (e.g., optoelectronic properties, bioactivity, self-healing ability, shape memory ability), but also have the capability to undergo reversible gel-sol transition in response to various environmental stimuli inherent to the noncovalent cross-linkages, thereby showing great potential as promising biomaterial scaffolds for diagnosis and therapy. In this Review, we summarized the recent progress in the design and synthesis of supramolecular hydrogels through specific, directional noncovalent interactions, with particular emphasis on the structure-property relationship, as well as their wide-ranging applications in disease diagnosis and therapy including bioimaging, biodetection, therapeutic delivery, and tissue engineering. We believe that these current achievements in supramolecular hydrogels will greatly stimulate new ideas and inspire persistent efforts in this hot topic area in future.
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Affiliation(s)
- Ruijiao Dong
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China.
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213
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Yang C, Chu L, Zhang Y, Shi Y, Liu J, Liu Q, Fan S, Yang Z, Ding D, Kong D, Liu J. Dynamic biostability, biodistribution, and toxicity of L/D-peptide-based supramolecular nanofibers. ACS APPLIED MATERIALS & INTERFACES 2015; 7:2735-2744. [PMID: 25555064 DOI: 10.1021/am507800e] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Self-assembling peptide nanofibers (including naturally L-amino acid-based and unnaturally D-amino acid-based ones) have been widely utilized in biomedical research. However, there has been no systematic study on their in vivo stability, distribution, and toxicity. Herein we systematically study the in vivo dynamic biostability, biodistribution, and toxicity of supramolecular nanofibers formed by Nap-GFFYGRGD (L-amino acid-based, L-fibers) and Nap-G(D)F(D)F(D)YGRGD (D-amino acid-based, D-fibers), respectively. The D-fibers have better in vitro and in vivo biostabilities than L-fibers. It is found that D-fibers keep a good integrity in plasma during 24 h, while half of l-fibers are digested upon incubation in plasma for 6 h. The biodistributions of L- and D-fibers are also studied using the iodine-125 radiolabeling technique. The results reveal that L-fibers mainly accumulate in stomach, whereas d-fibers preferentially distribute in liver. Successive administrations of both L- and D-fibers with the dose of 30 mg/kg/dose cause no significant inflammation, liver and kidney function damages, immune reaction, and dysfunction of hematopoietic system. This study will provide fundamental guidelines for utilization of self-assembling peptide-based supramolecular nanomaterials in biomedical applications, such as drug delivery, bioimaging, and regenerative medicine.
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Affiliation(s)
- Cuihong Yang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science & Peking Union Medical College , Tianjin 300192, P. R. China
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214
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215
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Martínez-Calvo M, Kotova O, Möbius ME, Bell AP, McCabe T, Boland JJ, Gunnlaugsson T. Healable luminescent self-assembly supramolecular metallogels possessing lanthanide (Eu/Tb) dependent rheological and morphological properties. J Am Chem Soc 2015; 137:1983-92. [PMID: 25590898 DOI: 10.1021/ja511799n] [Citation(s) in RCA: 156] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Herein we present the use of lanthanide directed self-assembly formation (Ln(III) = Eu(III), Tb(III)) in the generation of luminescent supramolecular polymers, that when swelled with methanol give rise to self-healing supramolecular gels. These were analyzed by using luminescent and (1)H NMR titrations studies, allowing for the identification of the various species involved in the subsequent Ln(III)-gel formation. These highly luminescent gels could be mixed to give a variety of luminescent colors depending on their Eu(III):Tb(III) stoichiometric ratios. Imaging and rheological studies showed that these gels prepared using only Eu(III) or only Tb(III) have different morphological and rheological properties, that are also different from those determined upon forming gels by mixing of Eu(III) and Tb(III) gels. Hence, our results demonstrate for the first time the crucial role the lanthanide ions play in the supramolecular polymerization process, which is in principle a host-guest interaction, and consequently in the self-healing properties of the corresponding gels, which are dictated by the same host-guest interactions.
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Affiliation(s)
- Miguel Martínez-Calvo
- School of Chemistry and Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, University of Dublin , 152-160 Pearse Street, Dublin 2, Ireland
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216
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Wang G, Goyal N, Mangunuru HPR, Yang H, Cheuk S, Reddy PVN. Preparation and Self-Assembly Study of Amphiphilic and Bispolar Diacetylene-Containing Glycolipids. J Org Chem 2015; 80:733-43. [DOI: 10.1021/jo501568u] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Guijun Wang
- Department of Chemistry
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Biochemistry, Old Dominion University, Norfolk, Virginia 23529, United States
| | - Navneet Goyal
- Department of Chemistry
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Biochemistry, Old Dominion University, Norfolk, Virginia 23529, United States
| | - Hari P. R. Mangunuru
- Department of Chemistry
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Biochemistry, Old Dominion University, Norfolk, Virginia 23529, United States
| | - Hao Yang
- Department of Chemistry
and
Biochemistry, Old Dominion University, Norfolk, Virginia 23529, United States
| | - Sherwin Cheuk
- Department of Chemistry
and
Biochemistry, Old Dominion University, Norfolk, Virginia 23529, United States
| | - Puram V. Narasimha Reddy
- Department of Chemistry
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Biochemistry, Old Dominion University, Norfolk, Virginia 23529, United States
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217
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Hua Y, Ou C, Chen G, Zhang X, Cai Y, Yang Z, Wang L, Chen M. Visualized detection of vancomycin by supramolecular hydrogelations. RSC Adv 2015. [DOI: 10.1039/c5ra14045e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Here we report on a visualized detection system for vancomycin based on supramolecular hydrogelations.
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Affiliation(s)
- Yongquan Hua
- Department of Cardiology
- Zhujiang Hospital of Southern Medical University
- Guangzhou 510280
- P. R. China
| | - Caiwen Ou
- Department of Cardiology
- Zhujiang Hospital of Southern Medical University
- Guangzhou 510280
- P. R. China
| | - Guoqin Chen
- Cardiovascular Medicine Department of Guangzhou Panyu Central Hospital
- Guangzhou
- P. R. China
| | - Xiaoli Zhang
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin 300071
| | - Yanbin Cai
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin 300071
| | - Zhimou Yang
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin 300071
| | - Ling Wang
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin 300071
| | - Minsheng Chen
- Department of Cardiology
- Zhujiang Hospital of Southern Medical University
- Guangzhou 510280
- P. R. China
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218
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Lalitha K, Prasad YS, Maheswari CU, Sridharan V, John G, Nagarajan S. Stimuli responsive hydrogels derived from a renewable resource: synthesis, self-assembly in water and application in drug delivery. J Mater Chem B 2015; 3:5560-5568. [DOI: 10.1039/c5tb00864f] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report coumarin-tris based hydrogel and curcumin encapsulated composite gel for stimuli responsive drug delivery applications.
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Affiliation(s)
- Krishnamoorthy Lalitha
- Organic Synthesis Group
- Department of Chemistry & The Centre for Nanotechnology and Advanced Biomaterials
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur – 613401
| | - Y. Siva Prasad
- Organic Synthesis Group
- Department of Chemistry & The Centre for Nanotechnology and Advanced Biomaterials
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur – 613401
| | - C. Uma Maheswari
- Organic Synthesis Group
- Department of Chemistry & The Centre for Nanotechnology and Advanced Biomaterials
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur – 613401
| | - Vellaisamy Sridharan
- Organic Synthesis Group
- Department of Chemistry & The Centre for Nanotechnology and Advanced Biomaterials
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur – 613401
| | - George John
- Department of Chemistry
- the City College of New York
- New York
- USA
| | - Subbiah Nagarajan
- Organic Synthesis Group
- Department of Chemistry & The Centre for Nanotechnology and Advanced Biomaterials
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur – 613401
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219
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Hsu SM, Wu FY, Lai TS, Lin YC, Lin HC. Self-assembly and hydrogelation from multicomponent coassembly of pentafluorobenzyl-phenylalanine and pentafluorobenzyl-diphenylalanine. RSC Adv 2015. [DOI: 10.1039/c5ra01020a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
To screen the possibility of forming self-assembled hydrogels under physiological pH, various molar ratios of the hydrogelators based on pentafluorobenzyl-phenylalanine (PFB-F) and pentafluorobenzyl-diphenylalanine (PFB-FF) were studied.
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Affiliation(s)
- Shu-Min Hsu
- Department of Materials Science and Engineering
- National Chiao Tung University
- Hsinchu
- Republic of China
| | - Fang-Yi Wu
- Department of Materials Science and Engineering
- National Chiao Tung University
- Hsinchu
- Republic of China
| | - Tsung-Sheng Lai
- Department of Materials Science and Engineering
- National Chiao Tung University
- Hsinchu
- Republic of China
| | - Yu-Chun Lin
- Department of Materials Science and Engineering
- National Chiao Tung University
- Hsinchu
- Republic of China
| | - Hsin-Chieh Lin
- Department of Materials Science and Engineering
- National Chiao Tung University
- Hsinchu
- Republic of China
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220
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Ohsedo Y, Oono M, Saruhashi K, Watanabe H. A new water-soluble aromatic polyamide hydrogelator with thixotropic properties. RSC Adv 2015. [DOI: 10.1039/c5ra16824d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The water-soluble aromatic polyamide poly(3-sodium sulfo-p-phenylene terephthalamide) forms a hydrogel with anisotropy, which exhibits good thixotropic behaviour, even at the critical gel concentration of the gelator (1.0 wt%).
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Affiliation(s)
- Yutaka Ohsedo
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
| | - Masashi Oono
- Nissan Chemical Industries, Ltd
- 2-10-1 Tsuboinishi, Funabashi
- Japan
| | | | - Hisayuki Watanabe
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
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221
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Wang H, Wang Y, Zhang X, Hu Y, Yi X, Ma L, Zhou H, Long J, Liu Q, Yang Z. Supramolecular nanofibers of self-assembling peptides and proteins for protein delivery. Chem Commun (Camb) 2015; 51:14239-42. [DOI: 10.1039/c5cc03835a] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Supramolecular nanofibers of proteins and peptides could be used for intracellular protein delivery.
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222
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Ling Y, Gao Y, Shu C, Zhou Y, Zhong W, Xu B. Using a peptide segment to covalently conjugate doxorubicin and taxol for the study of drug combination effect. RSC Adv 2015. [DOI: 10.1039/c5ra14156g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Doxorubicin (Dox) and Taxol can be covalently bonded to the same peptide segment via proper structural modification.
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Affiliation(s)
- Ya Ling
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing
- China
| | - Yuan Gao
- CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety
- National Center for NanoScience and Technology
- Beijing 100190
- China
| | - Chang Shu
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing
- China
| | - Ying Zhou
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing
- China
| | - Wenying Zhong
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing
- China
- Key Laboratory of Biomedical Functional Materials
| | - Bing Xu
- Department of Chemistry
- Brandeis University
- Waltham
- USA
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223
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Ohsedo Y, Taniguchi M, Saruhashi K, Watanabe H. Improved mechanical properties of polyacrylamide hydrogels created in the presence of low-molecular-weight hydrogelators. RSC Adv 2015. [DOI: 10.1039/c5ra16823f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
It was found that the crushing stress of the obtained polyacrylamide hydrogels was enhanced by using the molecular gel as removable templates.
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Affiliation(s)
- Yutaka Ohsedo
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
| | - Makiko Taniguchi
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
| | | | - Hisayuki Watanabe
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
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224
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Wang W, Hu J, Zheng M, Zheng L, Wang H, Zhang Y. Multi-responsive supramolecular hydrogels based on merocyanine–peptide conjugates. Org Biomol Chem 2015; 13:11492-8. [DOI: 10.1039/c5ob01912e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stimuli-responsive hydrogels are “smart” materials with diverse applications.
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Affiliation(s)
- Wei Wang
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- P. R. China
| | - Jing Hu
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- P. R. China
| | - Mengmeng Zheng
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- P. R. China
| | - Li Zheng
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- P. R. China
| | - Huan Wang
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- P. R. China
| | - Yan Zhang
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- P. R. China
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225
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Wu FY, Hsu SM, Cheng H, Hsu LH, Lin HC. The effect of fluorine on supramolecular hydrogelation of 4-fluorobenzyl-capped diphenylalanine. NEW J CHEM 2015. [DOI: 10.1039/c5nj00786k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Due to the replacement of only one hydrogen atom by fluorine, 4-fluorobenzyl-diphenylalanine molecules self-assemble to form a transparent hydrogel.
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Affiliation(s)
- Fang-Yi Wu
- Department of Materials Science and Engineering
- National Chiao Tung University
- Hsinchu
- Republic of China
| | - Shu-Min Hsu
- Department of Materials Science and Engineering
- National Chiao Tung University
- Hsinchu
- Republic of China
| | - Hsun Cheng
- Department of Materials Science and Engineering
- National Chiao Tung University
- Hsinchu
- Republic of China
| | - Ling-Huang Hsu
- Department of Materials Science and Engineering
- National Chiao Tung University
- Hsinchu
- Republic of China
| | - Hsin-Chieh Lin
- Department of Materials Science and Engineering
- National Chiao Tung University
- Hsinchu
- Republic of China
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226
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Conejero-Muriel M, Contreras-Montoya R, Díaz-Mochón JJ, Álvarez de Cienfuegos L, Gavira JA. Protein crystallization in short-peptide supramolecular hydrogels: a versatile strategy towards biotechnological composite materials. CrystEngComm 2015. [DOI: 10.1039/c5ce00850f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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227
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Ohsedo Y, Taniguchi M, Oono M, Saruhashi K, Watanabe H. Long-chain alkylamide-derived oil gels: mixing induced onset of thixotropy and application in sustained drug release. NEW J CHEM 2015. [DOI: 10.1039/c5nj00999e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oil gels composed of long-chain alkylamides exhibited thixotropic properties, although the same property was absent in each alkylamide.
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Affiliation(s)
- Yutaka Ohsedo
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
| | - Makiko Taniguchi
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
| | | | | | - Hisayuki Watanabe
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
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228
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Shi Y, Wang Z, Zhang X, Xu T, Ji S, Ding D, Yang Z, Wang L. Multi-responsive supramolecular hydrogels for drug delivery. Chem Commun (Camb) 2015; 51:15265-7. [DOI: 10.1039/c5cc05792b] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We reported a versatile method to prepare responsive supramolecular hydrogels.
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Affiliation(s)
- Yang Shi
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Design
- Nankai University
- Tianjin 300071
| | - Zhongyan Wang
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Design
- Nankai University
- Tianjin 300071
| | - Xiaoli Zhang
- State Key Laboratory of Medicinal Chemical Biology
- Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Sciences
- Nankai University
| | - Tengyan Xu
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Design
- Nankai University
- Tianjin 300071
| | - Shenglu Ji
- State Key Laboratory of Medicinal Chemical Biology
- Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Sciences
- Nankai University
| | - Dan Ding
- State Key Laboratory of Medicinal Chemical Biology
- Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Sciences
- Nankai University
| | - Zhimou Yang
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Design
- Nankai University
- Tianjin 300071
| | - Ling Wang
- State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Tianjin Key Laboratory of Molecular Drug Design
- Nankai University
- Tianjin 300071
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229
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Li Y, Cheng L, Liu C, Liu W, Zhu L, Fan Y, Wu Y, Li X, Zeng Q, Fan X. Supramolecular three-component amino acid-based hydrogels with superior mechanical strength for controllably promoting nonpathogenic E. coli growth. RSC Adv 2015. [DOI: 10.1039/c5ra13827b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel three-component hybrid hydrogels have been constructed by amino acid derivatives, riboflavin and melamine through self-assembly, which demonstrate excellent mechanical strength (>104 Pa) and low cell toxicity.
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Affiliation(s)
- Yibao Li
- Key Laboratory of Organo-pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Linxiu Cheng
- Key Laboratory of Organo-pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Chunhua Liu
- Key Laboratory of Organo-pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Wei Liu
- Key Laboratory of Organo-pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Lei Zhu
- Key Laboratory of Organo-pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Yulan Fan
- Key Laboratory of Organo-pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Yongquan Wu
- Key Laboratory of Organo-pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Xun Li
- Key Laboratory of Organo-pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
| | - Qingdao Zeng
- National Center for Nanoscience and Technology (NCNST)
- Beijing 100190
- P. R. China
| | - Xiaolin Fan
- Key Laboratory of Organo-pharmaceutical Chemistry
- Gannan Normal University
- Ganzhou 341000
- P. R. China
- Material and Chemical Engineering Department
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230
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Deng X, Liang Y, Peng X, Su T, Luo S, Cao J, Gu Z, He B. A facile strategy to generate polymeric nanoparticles for synergistic chemo-photodynamic therapy. Chem Commun (Camb) 2015; 51:4271-4. [DOI: 10.1039/c4cc10226f] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Polymeric nanoparticles generated by mPEG-tetrakis(4-carboxyphenyl)porphyrin amphiphiles were used to trap doxorubicin for synergistic chemo-photodynamic therapy.
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Affiliation(s)
- Xin Deng
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Yan Liang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Xinyu Peng
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Ting Su
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Song Luo
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Jun Cao
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Zhongwei Gu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Bin He
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
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231
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Lin YA, Cheetham AG, Zhang P, Ou YC, Li Y, Liu G, Hermida-Merino D, Hamley IW, Cui H. Multiwalled nanotubes formed by catanionic mixtures of drug amphiphiles. ACS NANO 2014; 8:12690-700. [PMID: 25415538 PMCID: PMC4334259 DOI: 10.1021/nn505688b] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 11/21/2014] [Indexed: 05/30/2023]
Abstract
Mixing of oppositely charged amphiphilic molecules (catanionic mixing) offers an attractive strategy to produce morphologies different from those formed by individual molecules. We report here on the use of catanionic mixing of anticancer drug amphiphiles to construct multiwalled nanotubes containing a fixed and high drug loading. We found that the molecular mixing ratio, the solvent composition, the overall drug concentrations, as well as the molecular design of the studied amphiphiles are all important experimental parameters contributing to the tubular morphology. We believe these results demonstrate the remarkable potential that anticancer drugs could offer to self-assemble into discrete nanostructures and also provide important insight into the formation mechanism of nanotubes by catanionic mixtures. Our preliminary animal studies reveal that the CPT nanotubes show significantly prolonged retention time in the tumor site after intratumoral injection.
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Affiliation(s)
- Yi-An Lin
- Department of Chemical & Bimolecular Engineering and Institute for NanoBiotechnology, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Andrew G. Cheetham
- Department of Chemical & Bimolecular Engineering and Institute for NanoBiotechnology, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Pengcheng Zhang
- Department of Chemical & Bimolecular Engineering and Institute for NanoBiotechnology, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Yu-Chuan Ou
- Department of Chemical & Bimolecular Engineering and Institute for NanoBiotechnology, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Yuguo Li
- F. M. Kirby Center, Kennedy Krieger Institute, and Department of Radiology, Johns Hopkins School of Medicine, 707 North Broadway, Baltimore, Maryland 21205, United States
| | - Guanshu Liu
- F. M. Kirby Center, Kennedy Krieger Institute, and Department of Radiology, Johns Hopkins School of Medicine, 707 North Broadway, Baltimore, Maryland 21205, United States
| | - Daniel Hermida-Merino
- DUBBLE-Dutch Belgian Beamline (BM26), ESRF, 6 Rue Jules Horowitz, BP 220, 38043 Grenoble CEDEX 9, France
| | - Ian W. Hamley
- Department of Chemistry, University of Reading, Whiteknights, Reading, Berkshire RG6 6UR, United Kingdom
| | - Honggang Cui
- Department of Chemical & Bimolecular Engineering and Institute for NanoBiotechnology, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
- Department of Oncology and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Center for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, Maryland 21231, United States
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232
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Goyal N, Mangunuru HPR, Parikh B, Shrestha S, Wang G. Synthesis and characterization of pH responsive D-glucosamine based molecular gelators. Beilstein J Org Chem 2014; 10:3111-21. [PMID: 25670980 PMCID: PMC4311663 DOI: 10.3762/bjoc.10.328] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 11/24/2014] [Indexed: 01/05/2023] Open
Abstract
Small molecular gelators are a class of compounds with potential applications for soft biomaterials. Low molecular weight hydrogelators are especially useful for exploring biomedical applications. Previously, we found that 4,6-O-benzylidene acetal protected D-glucose and D-glucosamine are well-suited as building blocks for the construction of low molecular weight gelators. To better understand the scope of D-glucosamine derivatives as gelators, we synthesized and screened a novel class of N-acetylglucosamine derivatives with a p-methoxybenzylidene acetal protective group. This modification did not exert a negative influence on the gelation. On the contrary, it actually enhanced the gelation tendency for many derivatives. The introduction of the additional methoxy group on the phenyl ring led to low molecular weight gelators with a higher pH responsiveness. The resulting gels were stable at neutral pH values but degraded in an acidic environment. The release profiles of naproxen from the pH responsive gels were also analyzed under acidic and neutral conditions. Our findings are useful for the design of novel triggered release self-assembling systems and can provide an insight into the influence of the the structure on gelation.
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Affiliation(s)
- Navneet Goyal
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Hari P R Mangunuru
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Bargav Parikh
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Sonu Shrestha
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
| | - Guijun Wang
- Department of Chemistry and Biochemistry, Old Dominion University, 4541 Hampton Boulevard, Norfolk, VA 23529, USA
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233
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Zhao F, Li J, Zhou N, Sakai J, Gao Y, Shi J, Goldman B, Browdy HM, Luo HR, Xu B. De novo chemoattractants form supramolecular hydrogels for immunomodulating neutrophils in vivo. Bioconjug Chem 2014; 25:2116-22. [PMID: 25398017 PMCID: PMC4275169 DOI: 10.1021/bc5004923] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 11/12/2014] [Indexed: 12/27/2022]
Abstract
Most immunomodulatory materials (e.g., vaccine adjuvants such as alum) modulate adaptive immunity, and yet little effort has focused on developing materials to regulate innate immunity, which get mentioned only when inflammation affects the biocompatibility of biomaterials. Traditionally considered as short-lived effector cells from innate immunity primarily for the clearance of invading microorganisms without specificity, neutrophils exhibit a key role in launching and shaping the immune response. Here we show that the incorporation of unnatural amino acids into a well-known chemoattractant-N-formyl-l-methionyl-l-leucyl-l-phenylalanine (fMLF)-offers a facile approach to create a de novo, multifunctional chemoattractant that self-assembles to form supramolecular nanofibrils and hydrogels. This de novo chemoattractant not only exhibits preserved cross-species chemoattractant activity to human and murine neutrophils, but also effectively resists proteolysis. Thus, its hydrogel, in vivo, releases the chemoattractant and attracts neutrophils to the desired location in a sustainable manner. As a novel and general approach to generate a new class of biomaterials for modulating innate immunity, this work offers a prolonged acute inflammation model for developing various new applications.
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Affiliation(s)
- Fan Zhao
- Department
of Chemistry, Brandeis University, 415 South Street MS015, Waltham, Massachusetts 02454, United States
| | - Jingyu Li
- Department
of Pathology, Harvard Medical School and Department of Laboratory
Medicine, Children’s Hospital Boston
and Dana-Farber/Harvard Cancer Center, Boston, Massachusetts 02115, United States
- Department
of Pathophysiology, West China School of Preclinical and Forensic
Medicine, Sichuan University, Chengdu, Sichuan 610041, P. R. China
| | - Ning Zhou
- Department
of Chemistry, Brandeis University, 415 South Street MS015, Waltham, Massachusetts 02454, United States
| | - Jiro Sakai
- Department
of Pathology, Harvard Medical School and Department of Laboratory
Medicine, Children’s Hospital Boston
and Dana-Farber/Harvard Cancer Center, Boston, Massachusetts 02115, United States
| | - Yuan Gao
- Department
of Chemistry, Brandeis University, 415 South Street MS015, Waltham, Massachusetts 02454, United States
| | - Junfeng Shi
- Department
of Chemistry, Brandeis University, 415 South Street MS015, Waltham, Massachusetts 02454, United States
| | - Bronia Goldman
- Department
of Chemistry, Brandeis University, 415 South Street MS015, Waltham, Massachusetts 02454, United States
| | - Hayley M. Browdy
- Department
of Chemistry, Brandeis University, 415 South Street MS015, Waltham, Massachusetts 02454, United States
| | - Hongbo R. Luo
- Department
of Pathology, Harvard Medical School and Department of Laboratory
Medicine, Children’s Hospital Boston
and Dana-Farber/Harvard Cancer Center, Boston, Massachusetts 02115, United States
| | - Bing Xu
- Department
of Chemistry, Brandeis University, 415 South Street MS015, Waltham, Massachusetts 02454, United States
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234
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Taverna D, Norris JL, Caprioli RM. Histology-directed microwave assisted enzymatic protein digestion for MALDI MS analysis of mammalian tissue. Anal Chem 2014; 87:670-6. [PMID: 25427280 PMCID: PMC4287167 DOI: 10.1021/ac503479a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
![]()
This study presents on-tissue proteolytic
digestion using a microwave
irradiation and peptide extraction method for in situ analysis of proteins from spatially defined regions of a tissue
section. The methodology utilizes hydrogel discs (1 mm diameter) embedded
with trypsin solution. The enzyme-laced hydrogel discs are applied
to a tissue section, directing enzymatic digestion to a spatially
confined area of the tissue. By applying microwave radiation, protein
digestion is performed in 2 min on-tissue, and the extracted peptides
are then analyzed by matrix assisted laser desorption/ionization mass
spectrometry (MALDI MS) and liquid chromatography tandem mass spectrometry
(LC-MS/MS). The reliability and reproducibility of the microwave assisted
hydrogel mediated on-tissue digestion is demonstrated by the comparison
with other on-tissue digestion strategies, including comparisons with
conventional heating and in-solution digestion. LC-MS/MS data were
evaluated considering the number of identified proteins as well as
the number of protein groups and distinct peptides. The results of
this study demonstrate that rapid and reliable protein digestion can
be performed on a single thin tissue section while preserving the
relationship between the molecular information obtained and the tissue
architecture, and the resulting peptides can be extracted in sufficient
abundance to permit analysis using LC-MS/MS. This approach will be
most useful for samples that have limited availability but are needed
for multiple analyses, especially for the correlation of proteomics
data with histology and immunohistochemistry.
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Affiliation(s)
- Domenico Taverna
- Department of Chemistry and Technological Chemistry, University of Calabria , Arcavacata di Rende, Cosenza 87036, Italy
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235
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Balamurugan R, Kai-Ming W, Chien CC, Liu JH. Structure-property relationships of symmetrical and asymmetrical azobenzene derivatives as gelators and their self-assemblies. SOFT MATTER 2014; 10:8963-8970. [PMID: 25290740 DOI: 10.1039/c4sm01435a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Two different series of symmetrical and asymmetrical azobenzenes containing terminal cholesteryl/adamantyl derivatives (SAC/SAA and AAC) with varying spacer lengths (alkyl chains) have been developed. The gelation and aggregation of these derivatives were studied relative to structural motifs, spacer lengths, solvent affinity, temperatures and light conditions. Among these derivatives, the cholesteryl derivatives that have short alkyl chains (<3) act as efficient gelators in a variety of solvents. However, the cholesteryl derivatives with longer alkyl chains (11 spacer) and adamantyl derivatives did not possess this ability. Self-assembled fibrous structures were constructed by gelators with short alkyl chains (<3), while flower-like structures were constructed by gelators with moderately longer alkyl chains (3-6) at their respective critical gelation concentrations (CGCs) according to SEM (Scanning Electron Microscopy) and TEM (Transmission Electron Microscopy) analyses. In some cases, a partial/weak gel was observed in different solvents, which exhibited uniform spherical nanoparticles at CGCs. These nanoparticles were further entangled to form interconnected fibrous structures when the concentration was increased above the CGC (according to the SEM and TEM analyses). Secondary forces (van der Waals/H-bonding) and π-π stacking played important roles in the aggregation of both series in the solvents according to variable temperature (1)H-NMR analysis. The reversibility of sol-gel transitions by light was studied with respect to solvent affinity. This study revealed that reversible transitions were only observed in the non-polar solvents, as supported by the FTIR analysis of the gelators in the various solvents. The thermal and mesomorphic behaviors of the gelators by DSC (Differential Scanning Calorimetry) and POM (Polarized Optical Microscopy) analyses revealed that the chiral nematic (N*) and cholesteric mesophase (Ch*) were exhibited by only the short and longer alkyl chain cholesteryl derivatives, respectively. However, the cholesteryl derivative without a spacer (AAC0) did not exhibit any liquid crystalline phase but acted as an efficient gelator relative to the other gelators in this study.
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Affiliation(s)
- Rathinam Balamurugan
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan, Republic of China.
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236
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Singh M, Kundu S, Reddy M A, Sreekanth V, Motiani RK, Sengupta S, Srivastava A, Bajaj A. Injectable small molecule hydrogel as a potential nanocarrier for localized and sustained in vivo delivery of doxorubicin. NANOSCALE 2014; 6:12849-55. [PMID: 25227567 DOI: 10.1039/c4nr04064c] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The majority of the localized drug delivery systems are based on polymeric or polypeptide scaffolds, as weak intermolecular interactions of low molecular weight hydrogelators (LMHGs, Mw <500 Da) are significantly perturbed in the presence of anticancer drugs. Here, we present l-alanine derived low molecular weight hydrogelators (LMHGs) that remain injectable even after entrapping the anticancer drug doxorubicin (DOX). These DOX containing nanoassemblies (DOX-Gel) showed promising anticancer activity in mice models. Subcutaneous injection of DOX-Gel near the tumor achieved a greater decrease in tumour load than by intravenous injection of DOX (DOX-IV), and local injection of DOX alone (DOX-Local) at the tumor site. We noticed that DOX-Gel nanocarriers are especially effective when injected during the early stage of tumor progression, and achieve a substantial decrease in tumor load in the long term.
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Affiliation(s)
- Manish Singh
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 180 Udyog Vihar, Phase 1, Gurgaon-122016, India.
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237
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Paul M, Sarkar K, Dastidar P. Metallogels Derived from Silver Coordination Polymers ofC3-Symmetric Tris(pyridylamide) Tripodal Ligands: Synthesis of Ag Nanoparticles and Catalysis. Chemistry 2014; 21:255-68. [DOI: 10.1002/chem.201404959] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Indexed: 11/09/2022]
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238
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Yuan X, He B, Lv Z, Luo S. Fabrication of self-assembling peptide nanofiber hydrogels for myocardial repair. RSC Adv 2014. [DOI: 10.1039/c4ra08582e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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239
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Liu YH, Hsu SM, Wu FY, Cheng H, Yeh MY, Lin HC. Electroactive Organic Dye Incorporating Dipeptides in the Formation of Self-Assembled Nanofibrous Hydrogels. Bioconjug Chem 2014; 25:1794-800. [DOI: 10.1021/bc500299c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yu-Hao Liu
- Department of Materials Science
and Engineering, National Chiao Tung University, Hsinchu, 300, Taiwan, Republic of China
| | - Shu-Min Hsu
- Department of Materials Science
and Engineering, National Chiao Tung University, Hsinchu, 300, Taiwan, Republic of China
| | - Fang-Yi Wu
- Department of Materials Science
and Engineering, National Chiao Tung University, Hsinchu, 300, Taiwan, Republic of China
| | - Hsun Cheng
- Department of Materials Science
and Engineering, National Chiao Tung University, Hsinchu, 300, Taiwan, Republic of China
| | - Mei-Yu Yeh
- Department of Materials Science
and Engineering, National Chiao Tung University, Hsinchu, 300, Taiwan, Republic of China
| | - Hsin-Chieh Lin
- Department of Materials Science
and Engineering, National Chiao Tung University, Hsinchu, 300, Taiwan, Republic of China
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240
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Qin L, Xie F, Duan P, Liu M. A Peptide Dendron-Based Shrinkable Metallo-Hydrogel for Charged Species Separation and Stepwise Release of Drugs. Chemistry 2014; 20:15419-25. [DOI: 10.1002/chem.201404035] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Indexed: 12/24/2022]
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241
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Xing P, Chu X, Ma M, Li S, Hao A. Melamine as an Effective Supramolecular Modifier and Stabilizer in a Nanotube-Constituted Supergel. Chem Asian J 2014; 9:3440-50. [DOI: 10.1002/asia.201402645] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 07/07/2014] [Indexed: 01/28/2023]
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242
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He Y, Xu M, Gao R, Li X, Li F, Wu X, Xu D, Zeng H, Yuan L. Two-component supramolecular gels derived from amphiphilic shape-persistent cyclo[6]aramides for specific recognition of native arginine. Angew Chem Int Ed Engl 2014; 53:11834-9. [PMID: 25213644 DOI: 10.1002/anie.201407092] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 08/14/2014] [Indexed: 01/05/2023]
Abstract
A unique supramolecular two-component gelation system was constructed from amphiphilic shape-persistent cyclo[6]aramides and diethylammonium chloride (or triethylammonium chloride). This system has the ability to discriminate native arginine from 19 other amino acids in a specific fashion. Cyclo[6]aramides show preferential binding for the guanidinium residue over ammonium groups. This specificity was confirmed by both experimental results and theoretical simulations. These results demonstrated a new modular displacement strategy, exploring the use of species-binding hydrogen-bonded macrocyclic foldamers for the construction of two-component gelation systems for selective recognition of native amino acids by competitive host-guest interactions. This strategy may be amenable to developing a variety of functional two-component gelators for specific recognition of various targeted organic molecular species.
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Affiliation(s)
- Youzhou He
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610064 (China)
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243
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He Y, Xu M, Gao R, Li X, Li F, Wu X, Xu D, Zeng H, Yuan L. Two-Component Supramolecular Gels Derived from Amphiphilic Shape-Persistent Cyclo[6]aramides for Specific Recognition of Native Arginine. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407092] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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244
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Roy R, Deb J, Jana SS, Dastidar P. Peptide Conjugates of a Nonsteroidal Anti-Inflammatory Drug as Supramolecular Gelators: Synthesis, Characterization, and Biological Studies. Chem Asian J 2014; 9:3196-206. [DOI: 10.1002/asia.201402672] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Indexed: 01/10/2023]
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245
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Lok CN, Zou T, Zhang JJ, Lin IWS, Che CM. Controlled-release systems for metal-based nanomedicine: encapsulated/self-assembled nanoparticles of anticancer gold(III)/platinum(II) complexes and antimicrobial silver nanoparticles. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:5550-7. [PMID: 24664412 DOI: 10.1002/adma.201305617] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 12/22/2013] [Indexed: 05/18/2023]
Abstract
The therapeutic applications of many anticancer or antimicrobial metal complexes often suffer from low solubility and low stability in physiological conditions or from drug resistance. To circumvent these problems, nanoparticle systems that allow controlled release and specific accumulation in the targeted disease tissue are of advantage for efficient treatment with minimal toxicity. The focus of this Research News is metal-based nanomaterials comprising anticancer gold(III)/platinum(II) complexes or antimicrobial silver, highlighting the controlled-release properties of self-assembled metal systems.
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Affiliation(s)
- Chun-Nam Lok
- State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
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246
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Designer functionalised self-assembling peptide nanofibre scaffolds for cartilage tissue engineering. Expert Rev Mol Med 2014; 16:e12. [PMID: 25089851 DOI: 10.1017/erm.2014.13] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Owing to the limited regenerative capacity of cartilage tissue, cartilage repair remains a challenge in clinical treatment. Tissue engineering has emerged as a promising and important approach to repair cartilage defects. It is well known that material scaffolds are regarded as a fundamental element of tissue engineering. Novel biomaterial scaffolds formed by self-assembling peptides consist of nanofibre networks highly resembling natural extracellular matrices, and their fabrication is based on the principle of molecular self-assembly. Indeed, peptide nanofibre scaffolds have obtained much progress in repairing various damaged tissues (e.g. cartilage, bone, nerve, heart and blood vessel). This review outlines the rational design of peptide nanofibre scaffolds and their potential in cartilage tissue engineering.
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247
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Patil SP, Kim SH, Jadhav JR, Lee JH, Jeon EM, Kim KT, Kim BH. Cancer-specific gene silencing through therapeutic siRNA delivery with B vitamin-based nanoassembled low-molecular-weight hydrogelators. Bioconjug Chem 2014; 25:1517-25. [PMID: 25036457 DOI: 10.1021/bc500249g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
This paper describes the synthesis, characterization, and in vitro and in vivo siRNA transfection ability of B vitamin-based cationic clickable bolaamphiphiles (VBs). Our VBs derived from vitamins B₂, B₃, B₅, B₆, and B₇ formed nanoassembled low-molecular-weight hydrogelators (LMWGs, vitagels). The vitagels VB2, VB6, and VB7 (derived from vitamins B₂, B₆, and B₇, respectively) facilitated delivery of small interfering RNAs (siRNA), efficiently silencing gene expression specifically into cancer cell lines; in addition, the LMWGs derived from vitamins B₃, B₅, and B₆ were biocompatible. An ex vivo study in a mouse model revealed that the siRNA delivered by the vitagel VB7 was located primarily at the site of the tumor. The gene silencing efficiency of vascular endothelial growth factor siRNA delivered by vitagels was dependent on the nature of the vitamin headgroup, the N/P ratio, and, interestingly, the hydrogelation properties of the VBs.
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Affiliation(s)
- Sachin Prakash Patil
- Department of Chemistry, ‡Department of Life Sciences, and §Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology , Pohang 790-784, Korea
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248
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Mukherjee S, Kar T, Kumar Das P. Pyrene-Based Fluorescent Supramolecular Hydrogel: Scaffold for Energy Transfer. Chem Asian J 2014; 9:2798-805. [DOI: 10.1002/asia.201402358] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 05/22/2014] [Indexed: 12/23/2022]
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249
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Mu Y, Yu M. Effects of hydrophobic interaction strength on the self-assembled structures of model peptides. SOFT MATTER 2014; 10:4956-4965. [PMID: 24888420 DOI: 10.1039/c4sm00378k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Stable and ordered self-assembled peptide nanostructures are formed as a result of cooperative effects of various relatively weak intermolecular interactions. We systematically studied the influence of hydrophobic interaction strength and temperature on the self-assembly of peptides with a coarse-grained model by Monte Carlo simulations. The simulation results show a rich phase behavior of peptide self-assembly, indicating that the formation and morphology of peptide assemblies may be tuned by varying the temperature and the strength of hydrophobic interactions. There exist optimal combinations of temperature and hydrophobic interaction strength where ordered fibrillar nanostructures are readily formed. Our simulation results not only facilitate the understanding of the self-assembly behavior of peptides at the molecular level, but also provide useful insights into the development of fabrication strategies for high-quality peptide fibrils.
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Affiliation(s)
- Yan Mu
- College of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangdong, China.
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250
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Liu Y, Zheng N, Chen T, Jin L, Yin B. Monopyrrolotetrathiafulvalene–succinamide conjugates and their TCNQ charge transfer complex based supramolecular gels with multiple stimulus responsiveness. Org Biomol Chem 2014; 12:6927-36. [DOI: 10.1039/c4ob01397b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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