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Chen X, Wang W, Song Y, Zhou Y, Li H, Pan J. Fabrication of 2D nanosheet sorbents through metastable emulsion droplets and subsequent two-step grafting polymerization for efficient blood lead removal in vitro. JOURNAL OF HAZARDOUS MATERIALS 2022; 438:129522. [PMID: 35816801 DOI: 10.1016/j.jhazmat.2022.129522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 06/23/2022] [Accepted: 06/30/2022] [Indexed: 06/15/2023]
Abstract
Hemoperfusion is a powerful and yet simple method for lead poisoning treatment, but creation of safe and effective sorbents with excellent selectivity remains a real challenge. To address this, we here construct 2D nanosheet sorbents (BM-SH) through metastable emulsion droplets and subsequent two-step grafting polymerization for efficient blood lead removal in vitro. Metastable emulsion droplets endow typical nanosized sheet-like structure (thickness of 30 nm) and relatively round shape. The consecutive two grafting processes using hydroxyethyl methacrylate (HEMA) and L-cysteine monomer (D-SH) provide BM-SH with a high density of accessible binding sites towards lead ions (Pb2+). A high adsorption capacity of 390.5 mg g-1 and quick capture 97.35 % of Pb2+ within initial 10 min are obtained, surpassing most of the reported sorbents for lead removal. Besides, adsorption distribution coefficient (Kd) of BM-SH among four coexisting metal ions achieved 7792 mL g-1, showing outstanding selectivity toward Pb2+. Importantly, a possible adsorption mechanism is recognized as coordination with carboxyl, sulfydryl and imino groups from L-cysteine, and mercapto ligand as the key chelating agent may be the reason for high Pb2+ affinity. And what's more, BM-SH displays good hemocompatibility and high efficiency of blood lead removal rate (above 86 % in vitro).
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Affiliation(s)
- Xueping Chen
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Wenqing Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yulin Song
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yongquan Zhou
- Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China
| | - Hao Li
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Jianming Pan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
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Vacchini M, Edwards R, Guizzardi R, Palmioli A, Ciaramelli C, Paiotta A, Airoldi C, La Ferla B, Cipolla L. Glycan Carriers As Glycotools for Medicinal Chemistry Applications. Curr Med Chem 2019; 26:6349-6398. [DOI: 10.2174/0929867326666190104164653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 11/07/2018] [Accepted: 12/18/2018] [Indexed: 12/12/2022]
Abstract
Carbohydrates are one of the most powerful and versatile classes of biomolecules that nature
uses to regulate organisms’ biochemistry, modulating plenty of signaling events within cells, triggering
a plethora of physiological and pathological cellular behaviors. In this framework, glycan carrier
systems or carbohydrate-decorated materials constitute interesting and relevant tools for medicinal
chemistry applications. In the last few decades, efforts have been focused, among others, on the development
of multivalent glycoconjugates, biosensors, glycoarrays, carbohydrate-decorated biomaterials
for regenerative medicine, and glyconanoparticles. This review aims to provide the reader with a general
overview of the different carbohydrate carrier systems that have been developed as tools in different
medicinal chemistry approaches relying on carbohydrate-protein interactions. Given the extent of
this topic, the present review will focus on selected examples that highlight the advancements and potentialities
offered by this specific area of research, rather than being an exhaustive literature survey of
any specific glyco-functionalized system.
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Affiliation(s)
- Mattia Vacchini
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
| | - Rana Edwards
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
| | - Roberto Guizzardi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
| | - Alessandro Palmioli
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
| | - Carlotta Ciaramelli
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
| | - Alice Paiotta
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
| | - Cristina Airoldi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
| | - Barbara La Ferla
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
| | - Laura Cipolla
- Department of Biotechnology and Biosciences, University of Milano-Bicocca Milano, Italy
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Wen Y, Jiang X, Yang C, Meng H, Wang B, Wu H, Zhang Z, Xu H. The linker length of glucose-fipronil conjugates has a major effect on the rate of bioactivation by β-glucosidase. PEST MANAGEMENT SCIENCE 2019; 75:708-717. [PMID: 30182531 DOI: 10.1002/ps.5170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 07/30/2018] [Accepted: 08/07/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Endogenous plant β-glucosidases can be utilized to hydrolyze pro-pesticides and release the bioactive pesticide. Two related glucose-fipronil conjugates with different linkers structure, N-{3-cyano-1-[2,6-dichloro-4-(trifluoromethyl) phenyl]-4-[(trifluoromethyl) sulfinyl]-1H-pyrazol-5-yl}-1-(2-triazolethyl-β-d-glucopyranoside)-1H-1,2,3-triazole-4-methanamine (GOTF) and N-{3-cyano-1-[2,6-dichloro-4-(trifluoromethyl) phenyl]-4-[(trifluoromethyl)-sulfinyl]-1H-pyrazol-5-yl}-2-aminoethyl-β-d-glucopyranoside (GOF), were deglucolysated by β-glucosidase both in vitro and in vivo at different rates. Here, the basis for these differences was investigated by revealing the kinetics of the reaction and by modeling molecular docking between enzyme and substrate. RESULTS Results from kinetic study showed that the reaction rate was the main reason for the poorer rate of GOF hydrolysis with respect to GOTF. Modeling of substrate docking indicated that the spacer arm of glucose-fipronil conjugates affects the strength of non-covalent bonds within the active site and the position of fipronil within the pocket. Four glucose-fipronil conjugates and four corresponding aglycones were synthesized, and the hydrolysis data confirmed that the increased tether length between the bulky aglycone and glycone would lead to faster hydrolysis rate. The bioassay results indicated that most glucose-fipronil conjugates displayed moderate to excellent insecticidal activities in vivo against Plutella xylostella larvae. CONCLUSION This study provides a potential strategy to optimize the substrate structure to enhance hydrolytic specificity in order to design appropriate phloem mobile pro-pesticides. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Yingjie Wen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, People's Republic of China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, People's Republic of China
| | - Xunyuan Jiang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, People's Republic of China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, People's Republic of China
| | - Chen Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, People's Republic of China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, People's Republic of China
| | - Huayue Meng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, People's Republic of China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, People's Republic of China
| | - Binfeng Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, People's Republic of China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, People's Republic of China
| | - Hanxiang Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, People's Republic of China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, People's Republic of China
| | - Zhixiang Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, People's Republic of China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, People's Republic of China
| | - Hanhong Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, People's Republic of China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, People's Republic of China
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Kawauchi T, Kojima T, Sakaguchi H, Iyoda T. Electrostatic Repulsion-Induced Desorption of Dendritic Viologen-Arranged Molecules Anchored on a Gold Surface through a Gold-Thiolate Bond Leading to a Tunable Molecular Template. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6420-6427. [PMID: 29733659 DOI: 10.1021/acs.langmuir.8b00858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We investigated the adsorption and desorption behavior of self-assembled monolayers (SAMs) on gold derived from dendritic viologen-arranged molecules with an ω-mercaptodecyl group (A n, n (dendritic generation) = 0-3) at the apex of the dendritic structure in polar solvents. The adsorption of the dendritic molecules occurred quickly and saturated within a few minutes in an acetonitrile/ethanol (1/1, v/v) mixture at a concentration of 2 mM. Atomic force microscopy images of the SAMs showed flat surfaces regardless of the dendritic generation because the peripheral viologen units were closely packed at the surface of the molecular layer. Individual A3 molecules immobilized on the substrate were observed by scanning tunneling microscopy measurements of a mixed SAM with decanethiol. The desorption behaviors of dendritic molecules from the A n-SAMs in several solvents such as water were also investigated. The spontaneous desorption of the A n-SAM occurred more rapidly than that of a conventional n-alkanethiol SAM. However, the desorption was inhibited by adding electrolytes such as NaNO3 due to the shielding effect on the electrostatic repulsion between the dendritic molecules. These results indicate that the surface density of the dendritic molecules can be controlled through the desorption.
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Affiliation(s)
- Takehiro Kawauchi
- Department of Materials Chemistry, Faculty of Science and Technology , Ryukoku University , 1-5 Yokotani , Oe-cho, Seta, Otsu , Shiga 520-2194 , Japan
| | - Takahiro Kojima
- Institute of Advanced Energy , Kyoto University , Gokasyo, Uji , Kyoto 611-0011 , Japan
| | - Hiroshi Sakaguchi
- Institute of Advanced Energy , Kyoto University , Gokasyo, Uji , Kyoto 611-0011 , Japan
| | - Tomokazu Iyoda
- Harris Science Research Institute , Doshisha University , 1-3 Tatara Miyakodani , Kyotanabe , Kyoto 610-0394 , Japan
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5
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Fuentes-Paniagua E, Hernández-Ros JM, Soliveri J, Copa-Patiño JL, Gómez R, Sánchez-Nieves J, de la Mata FJ. Strategies for penicillin V dendronization with cationic carbosilane dendrons and study of antibacterial properties. CAN J CHEM 2017. [DOI: 10.1139/cjc-2017-0059] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Strategies to synthesize a cationic carbosilane dendron containing the antibiotic penicillin V potassium salt (PenVK) at the focal point are discussed. The preparation of such a compound requires the use of systems with no donor atoms such as N or S in their framework, because their presence favours the rupture of the penicillin β-lactam ring. The antibacterial activity of the new dendron containing ammonium groups, at the periphery, and the PenV moiety, at the focal point, against gram-positive Staphylococcus aureus strains was evaluated. These results were compared with those obtained for free PenVK, a related cationic dendron without a penicillin moiety at the focal point, and also compared with an equimolar mixture of this last dendron with free PenV. The data obtained indicate that, on one hand, the conjugation or interaction of PenV with cationic dendrons reduces its activity in comparison with free PenVK. On the other hand, the penicillin dendron is able to release the antibiotic in the presence of esterease, due to the breaking of the ester bond in this derivative.
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Affiliation(s)
- Elena Fuentes-Paniagua
- Departamento de Química Orgánica y Química Inorgánica, Campus Universitario, Universidad de Alcalá, Alcalá de Henares, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - José M. Hernández-Ros
- Departamento de Biomedicina y Biotecnología, Campus Universitario, Universidad de Alcalá, Alcalá de Henares, Spain
| | - Juan Soliveri
- Departamento de Biomedicina y Biotecnología, Campus Universitario, Universidad de Alcalá, Alcalá de Henares, Spain
| | - José L. Copa-Patiño
- Departamento de Biomedicina y Biotecnología, Campus Universitario, Universidad de Alcalá, Alcalá de Henares, Spain
| | - Rafael Gómez
- Departamento de Química Orgánica y Química Inorgánica, Campus Universitario, Universidad de Alcalá, Alcalá de Henares, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Javier Sánchez-Nieves
- Departamento de Química Orgánica y Química Inorgánica, Campus Universitario, Universidad de Alcalá, Alcalá de Henares, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - F. Javier de la Mata
- Departamento de Química Orgánica y Química Inorgánica, Campus Universitario, Universidad de Alcalá, Alcalá de Henares, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
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6
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da Silva ETSG, Souto DEP, Barragan JTC, de F. Giarola J, de Moraes ACM, Kubota LT. Electrochemical Biosensors in Point-of-Care Devices: Recent Advances and Future Trends. ChemElectroChem 2017. [DOI: 10.1002/celc.201600758] [Citation(s) in RCA: 170] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Everson T. S. G. da Silva
- Department of Analytical Chemistry; Institute of Chemistry -; State University of Campinas - Unicamp; P.O. Box 6154 13084-974 Campinas-SP Brazil
| | - Dênio E. P. Souto
- Department of Analytical Chemistry; Institute of Chemistry -; State University of Campinas - Unicamp; P.O. Box 6154 13084-974 Campinas-SP Brazil
| | - José T. C. Barragan
- Department of Analytical Chemistry; Institute of Chemistry -; State University of Campinas - Unicamp; P.O. Box 6154 13084-974 Campinas-SP Brazil
| | - Juliana de F. Giarola
- Department of Analytical Chemistry; Institute of Chemistry -; State University of Campinas - Unicamp; P.O. Box 6154 13084-974 Campinas-SP Brazil
| | - Ana C. M. de Moraes
- Department of Analytical Chemistry; Institute of Chemistry -; State University of Campinas - Unicamp; P.O. Box 6154 13084-974 Campinas-SP Brazil
| | - Lauro T. Kubota
- Department of Analytical Chemistry; Institute of Chemistry -; State University of Campinas - Unicamp; P.O. Box 6154 13084-974 Campinas-SP Brazil
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7
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Wang H, Wu Y, Liu G, Du Z, Cheng X. A Biodegradable and Amphiphilic Linear-Dendritic Copolymer as a Drug Carrier Platform for Intracellular Drug Delivery. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600269] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Haibo Wang
- Textile Institute; College of Light Industry; Textile and Food Engineering; Sichuan University; Chengdu 610065 China
| | - Yan Wu
- Textile Institute; College of Light Industry; Textile and Food Engineering; Sichuan University; Chengdu 610065 China
| | - Gongyan Liu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education; Sichuan University; Chengdu 610065 China
| | - Zongliang Du
- Textile Institute; College of Light Industry; Textile and Food Engineering; Sichuan University; Chengdu 610065 China
| | - Xu Cheng
- Textile Institute; College of Light Industry; Textile and Food Engineering; Sichuan University; Chengdu 610065 China
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8
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Stenström P, Andrén OCJ, Malkoch M. Fluoride-Promoted Esterification (FPE) Chemistry: A Robust Route to Bis-MPA Dendrons and Their Postfunctionalization. Molecules 2016; 21:366. [PMID: 26999090 PMCID: PMC6273928 DOI: 10.3390/molecules21030366] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 03/10/2016] [Accepted: 03/10/2016] [Indexed: 11/16/2022] Open
Abstract
Bifunctional dendrons based on 2,2-bis(methylol)propionic acid (bis-MPA) are highly desirable scaffolds for biomedical applications. This is due to their flawless nature and large and exact number of functional groups as well as being biodegradable and biocompatible. Herein, we describe a facile divergent growth approach to their synthesis from monobenzylated tetraethylene glycol and post functionalization utilizing fluoride-promoted esterification (FPE) chemistry protocols. The scaffolds, presenting selectively deprotectable hydroxyls in the periphery and at the focal point, were isolated on a multigram scale with excellent purity up to the fourth generation dendron with a molecular weight of 2346 Da in seven reactions with a total yield of 50%. The third generation dendron was used as a model compound to demonstrate its functionalizability. Selective deprotection of the dendron’s focal point was achieved with an outstanding yield of 94%, and biotin as well as azido functionalities were introduced to its focal point and periphery, respectively, through FPE chemistry. Bulky disperse red dyes were clicked through CuAAC to the dendron’s azido groups, giving a biotinylated dendron with multivalent dyes with a molecular weight of 6252 Da in a total yield of 37% in five reactions with an average yield of 82% starting from the third generation focally and peripherally protected dendron. FPE chemistry proved to be a superb improvement over previous protocols towards bis-MPA dendrons as high purity and yields were obtained with less toxic solvents and greatly improved monomer utilization.
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Affiliation(s)
- Patrik Stenström
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, 10044 Stockholm, Sweden.
| | - Oliver C J Andrén
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, 10044 Stockholm, Sweden.
| | - Michael Malkoch
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, 10044 Stockholm, Sweden.
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9
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Fuentes-Paniagua E, Sánchez-Nieves J, Hernández-Ros JM, Fernández-Ezequiel A, Soliveri J, Copa-Patiño JL, Gómez R, Javier de la Mata F. Structure–activity relationship study of cationic carbosilane dendritic systems as antibacterial agents. RSC Adv 2016. [DOI: 10.1039/c5ra25901k] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The bactericidal activity of a library of cationic dendritic systems depends on the hydrophilic/hydrophobic structural balance, being the presence of a sulfur atom proximal to the peripheral ammonium functions of relevance.
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Affiliation(s)
- Elena Fuentes-Paniagua
- Departamento de Química Orgánica y Química Inorgánica
- Campus Universitario
- Universidad de Alcalá
- Alcalá de Henares
- Spain
| | - Javier Sánchez-Nieves
- Departamento de Química Orgánica y Química Inorgánica
- Campus Universitario
- Universidad de Alcalá
- Alcalá de Henares
- Spain
| | - José M. Hernández-Ros
- Departamento de Biomedicina y Biotecnología
- Campus Universitario
- Universidad de Alcalá
- Alcalá de Henares
- Spain
| | - Alba Fernández-Ezequiel
- Departamento de Biomedicina y Biotecnología
- Campus Universitario
- Universidad de Alcalá
- Alcalá de Henares
- Spain
| | - Juan Soliveri
- Departamento de Biomedicina y Biotecnología
- Campus Universitario
- Universidad de Alcalá
- Alcalá de Henares
- Spain
| | - José L. Copa-Patiño
- Departamento de Biomedicina y Biotecnología
- Campus Universitario
- Universidad de Alcalá
- Alcalá de Henares
- Spain
| | - Rafael Gómez
- Departamento de Química Orgánica y Química Inorgánica
- Campus Universitario
- Universidad de Alcalá
- Alcalá de Henares
- Spain
| | - F. Javier de la Mata
- Departamento de Química Orgánica y Química Inorgánica
- Campus Universitario
- Universidad de Alcalá
- Alcalá de Henares
- Spain
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10
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García-Gallego S, Nyström AM, Malkoch M. Chemistry of multifunctional polymers based on bis-MPA and their cutting-edge applications. Prog Polym Sci 2015. [DOI: 10.1016/j.progpolymsci.2015.04.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Unique tetrameric and hexameric mannoside clusters prepared by click chemistry. Carbohydr Res 2015; 417:27-33. [PMID: 26398914 DOI: 10.1016/j.carres.2015.07.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 07/16/2015] [Accepted: 07/19/2015] [Indexed: 01/05/2023]
Abstract
The synthesis of novel tetrameric and hexameric mannoside clusters bearing 1,2,3-trizole linkages via Cu(I)-catalyzed azide-alkyne cycloaddition reaction ("click chemistry") is described. An attractive feature of these multiarmed mannoside clusters as potential inhibitors of uropathogenic Escherichia coli is the use of an aglycone whose length is designed to fit in the tyrosine gate. The acetylated mannosides were deprotected and the corresponding de-O-acetylated mannosides were found to exhibit good water solubility.
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12
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Twibanire JDK, Paul NK, Grindley TB. Synthesis of novel types of polyester glycodendrimers as potential inhibitors of urinary tract infections. NEW J CHEM 2015. [DOI: 10.1039/c4nj00992d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Syntheses of highly mannosylated polyester dendrimers with 2, 4, 8, and 16 α-d-mannopyranose residues on their peripheries connected by different linker arms are presented.
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Affiliation(s)
| | - Nawal K. Paul
- Department of Chemistry
- Dalhousie University
- Halifax
- Canada
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13
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Carlmark A, Malmström E, Malkoch M. Dendritic architectures based on bis-MPA: functional polymeric scaffolds for application-driven research. Chem Soc Rev 2014; 42:5858-79. [PMID: 23628841 DOI: 10.1039/c3cs60101c] [Citation(s) in RCA: 124] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Dendritic polymers are highly branched, globular architectures with multiple representations of functional groups. These nanoscale organic frameworks continue to fascinate researchers worldwide and are today under intensive investigation in application-driven research. A large number of potential application areas have been suggested for dendritic polymers, including theranostics, biosensors, optics, adhesives and coatings. The transition from potential to real applications is strongly dictated by their commercial accessibility, scaffolding ability as well as biocompatibility. A dendritic family that fulfills these requirements is based on the 2,2-bismethylolpropionic acid (bis-MPA) monomer. This critical review is the first of its kind to cover most of the research activities generated on aliphatic polyester dendritic architectures based on bis-MPA. It is apparent that these scaffolds will continue to be in the forefront of cutting-edge research as their structural variations are endless including dendrons, dendrimers, hyperbranched polymers, dendritic-linear hybrids and their hybridization with inorganic surfaces.
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Affiliation(s)
- Anna Carlmark
- KTH Royal Institute of Technology, School of Chemical Science and Engineering, Fibre and Polymer Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
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14
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Rahma H, Buffeteau T, Belin C, Le Bourdon G, Degueil M, Bennetau B, Vellutini L, Heuzé K. Resolving the chemical nature of nanodesigned silica surface obtained via a bottom-up approach. ACS APPLIED MATERIALS & INTERFACES 2013; 5:6843-6849. [PMID: 23855987 DOI: 10.1021/am402071t] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The covalent grafting on silica surfaces of a functional dendritic organosilane coupling agent inserted, in a long alkyl chain monolayer, is described. In this paper, we show that depending on experimental parameters, particularly the solvent, it is possible to obtain a nanodesigned surface via a bottom-up approach. Thus, we succeed in the formation of both homogeneous dense monolayer and a heterogeneous dense monolayer, the latter being characterized by a nanosized volcano-type pattern (4-6 nm of height, 100 nm of width, and around 3 volcanos/μm(2)) randomly distributed over the surface. The dendritic attribute of the grafted silylated coupling agent affords enough anchoring sites to immobilize covalently functional gold nanoparticles (GNPs), coated with amino PEG polymer to resolve the chemical nature of the surfaces and especially the volcano type nanopattern structures of the heterogeneous monolayer. Thus, the versatile surface chemistry developed herein is particularly challenging as the nanodesign is straightforward achieved in a bottom-up approach without any specific lithography device.
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Affiliation(s)
- Hakim Rahma
- Université de Bordeaux, ISM UMR 5255, F-33400 Talence, France
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15
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Andrén OCJ, Walter MV, Yang T, Hult A, Malkoch M. Multifunctional Poly(ethylene glycol): Synthesis, Characterization, and Potential Applications of Dendritic–Linear–Dendritic Block Copolymer Hybrids. Macromolecules 2013. [DOI: 10.1021/ma4003984] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Oliver C. J. Andrén
- School of
Chemical Science and Engineering, Dept. of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen. 56-58,
SE-100 44 Stockholm, Sweden
| | - Marie V. Walter
- School of
Chemical Science and Engineering, Dept. of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen. 56-58,
SE-100 44 Stockholm, Sweden
| | - Ting Yang
- School of
Chemical Science and Engineering, Dept. of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen. 56-58,
SE-100 44 Stockholm, Sweden
| | - Anders Hult
- School of
Chemical Science and Engineering, Dept. of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen. 56-58,
SE-100 44 Stockholm, Sweden
| | - Michael Malkoch
- School of
Chemical Science and Engineering, Dept. of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen. 56-58,
SE-100 44 Stockholm, Sweden
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