1
|
Roh S, Nam Y, Nguyen MTN, Han JH, Lee JS. Dynamic Covalent Bond-Based Polymer Chains Operating Reversibly with Temperature Changes. Molecules 2024; 29:3261. [PMID: 39064840 PMCID: PMC11279090 DOI: 10.3390/molecules29143261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Revised: 07/04/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024] Open
Abstract
Dynamic bonds can facilitate reversible formation and dissociation of connections in response to external stimuli, endowing materials with shape memory and self-healing capabilities. Temperature is an external stimulus that can be easily controlled through heat. Dynamic covalent bonds in response to temperature can reversibly connect, exchange, and convert chains in the polymer. In this review, we introduce dynamic covalent bonds that operate without catalysts in various temperature ranges. The basic bonding mechanism and the kinetics are examined to understand dynamic covalent chemistry reversibly performed by equilibrium control. Furthermore, a recent synthesis method that implements dynamic covalent coupling based on various polymers is introduced. Dynamic covalent bonds that operate depending on temperature can be applied and expand the use of polymers, providing predictions for the development of future smart materials.
Collapse
Affiliation(s)
| | | | | | | | - Jun Seop Lee
- Department of Materials Science and Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Republic of Korea; (S.R.); (Y.N.); (M.T.N.N.); (J.-H.H.)
| |
Collapse
|
2
|
Chantrain V, Rensch T, Pickhardt W, Grätz S, Borchardt L. Continuous Direct Mechanocatalytic Suzuki-Miyaura Coupling via Twin-Screw Extrusion. Chemistry 2024; 30:e202304060. [PMID: 38206188 DOI: 10.1002/chem.202304060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/11/2024] [Accepted: 01/11/2024] [Indexed: 01/12/2024]
Abstract
This work establishes the first direct mechanocatalytic reaction protocol within an extruder, focusing on the Suzuki-Miyaura reaction. Through the coating of either the extruder screws or barrel with Pd, we executed the cross-coupling reaction without the reliance on molecular catalyst compounds or powders, and solvents continuously. We identified the influence and interplay of crucial reaction parameters such as temperature, mechanical energy input, residence time, rheology, and catalyst contact time and finally obtained 36 % and 75 % of the reaction product after one and four reactor passes respectively.
Collapse
Affiliation(s)
- Viviene Chantrain
- Inorganic Chemistry I, Ruhr-University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Tilo Rensch
- Inorganic Chemistry I, Ruhr-University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Wilm Pickhardt
- Inorganic Chemistry I, Ruhr-University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Sven Grätz
- Inorganic Chemistry I, Ruhr-University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Lars Borchardt
- Inorganic Chemistry I, Ruhr-University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| |
Collapse
|
3
|
Valdes-García J, Zamora-Moreno J, Salomón-Flores MK, Martínez-Otero D, Barroso-Flores J, Yatsimirsky AK, Bazany-Rodríguez IJ, Dorazco-González A. Fluorescence Sensing of Monosaccharides by Bis-boronic Acids Derived from Quinolinium Dicarboxamides: Structural and Spectroscopic Studies. J Org Chem 2023; 88:2174-2189. [PMID: 36735858 DOI: 10.1021/acs.joc.2c02590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Three new diboronic acid-substituted bisquinolinium salts were synthesized, structurally described by single-crystal X-ray diffraction, and studied in-depth as fluorescent receptors for six monosaccharides and two open-chain polyols in water at physiological pH. The dicationic pyridine-2,6-dicarboxamide-based receptors contain two N-quinolinium rings as the fluorescent units covalently linked to three different isomers of phenylboronic acid (ortho, 2; meta, 3; and para, 4) as chelating binding sites for polyols. Additions of glucose/fructose in the micromolar concentration range to receptors 2 and 3 induce significant fluorescence changes, but in the presence of arabinose, galactose, mannose, and xylose, only modest optical changes are observed. This optical change is attributed to a static photoinduced electron transfer mechanism. The meta-diboronic receptor 3 exhibited a high affinity/selectivity toward glucose (K = 3800 M-1) over other monosaccharides including common interfering species such as fructose and mannitol. Based on multiple spectroscopic tools, electrospray ionization high-resolution mass spectrometry, crystal structures, and density functional theory calculations, the binding mode between 3 and glucose is proposed as a 1:1 complex with the glucofuranose form involving a cooperative chelating diboronate binding. These results demonstrate the usefulness of a new set of cationic fluorescent diboronic acid receptors with a strong ability for optical recognition of glucose in the sub-millimolar concentration range.
Collapse
Affiliation(s)
- Josue Valdes-García
- Institute of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico
| | - Julio Zamora-Moreno
- Institute of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico
| | - María K Salomón-Flores
- Institute of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico
| | - Diego Martínez-Otero
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Instituto de Química, Universidad Nacional Autónoma de México, Toluca 50200, Estado de México, México
| | - Joaquín Barroso-Flores
- Institute of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico.,Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Instituto de Química, Universidad Nacional Autónoma de México, Toluca 50200, Estado de México, México
| | - Anatoly K Yatsimirsky
- Facultad de Química, Universidad Nacional Autónoma de México, México D.F. 04510, México
| | | | | |
Collapse
|
4
|
Mathuri A, Pramanik M, Parida A, Mal P. Disulfide metathesis via sulfur⋯iodine interaction and photoswitchability. Org Biomol Chem 2021; 19:8539-8543. [PMID: 34546277 DOI: 10.1039/d1ob01581h] [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]
Abstract
The idea of constitutional dynamic chemistry (CDC) and dynamic combinatorial chemistry (DCC) is widespread in the literature using the chemistry of disulfides. The synthesis of unsymmetrical diaryl disulfides is challenging due to the presence of a weak S-S bond. We report herein the synthesis of unsymmetrical diaryl disulfides from two symmetrical disulfides via a cross-metathesis reaction which was controlled by a weak sulfur⋯iodine (S⋯I) interaction. The unsymmetrical disulfides were stable in acetonitrile solution in the presence of N-iodosuccinimide (NIS), and found to be reversibly photoswitchable to the symmetrical disulfides under visible light irradiation.
Collapse
Affiliation(s)
- Ashis Mathuri
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India.
| | - Milan Pramanik
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India.
| | - Amarchand Parida
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India.
| | - Prasenjit Mal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India.
| |
Collapse
|
5
|
Drożdż W, Walczak A, Stefankiewicz AR. Simultaneous Formation of a Fully Organic Triply Dynamic Combinatorial Library. Org Lett 2021; 23:3641-3645. [PMID: 33904751 PMCID: PMC8289287 DOI: 10.1021/acs.orglett.1c01042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Here we report the
simultaneous formation of doubly and triply
dynamic libraries as a result of exchange reactions between functionalized
organic building blocks. A combination of three different reversible
covalent linkages involving a boronate ester transesterification along
with an imine and disulfide exchange was employed to generate a new
type of fully organic triply dynamic molecular assembly.
Collapse
Affiliation(s)
- Wojciech Drożdż
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.,Center for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Anna Walczak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.,Center for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Artur R Stefankiewicz
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland.,Center for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| |
Collapse
|
6
|
Bazany-Rodríguez IJ, Salomón-Flores MK, Viviano-Posadas AO, García-Eleno MA, Barroso-Flores J, Martínez-Otero D, Dorazco-González A. Chemosensing of neurotransmitters with selectivity and naked eye detection of l-DOPA based on fluorescent Zn(ii)-terpyridine bearing boronic acid complexes. Dalton Trans 2021; 50:4255-4269. [DOI: 10.1039/d0dt04228e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new range of fluorescent Zn(ii)-terpyridine complexes are described and studied in-depth as chemosensors for catecholamine-based neurotransmitters in pure water.
Collapse
Affiliation(s)
- Iván J. Bazany-Rodríguez
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior, Ciudad Universitaria
- México
- Mexico
| | - María K. Salomón-Flores
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior, Ciudad Universitaria
- México
- Mexico
| | | | - Marco A. García-Eleno
- Centro Conjunto de Investigación en Química Sustentable CCIQS UAEM-UNAM
- Facultad de Química
- Universidad Autónoma del Estado de México
- Carretera Toluca-Atlacomulco Km 14.5
- Toluca
| | - Joaquín Barroso-Flores
- Centro Conjunto de Investigación en Química Sustentable
- UAEM-UNAM
- Carretera Toluca-Atlacomulco Km 14.5
- Universidad Nacional Autónoma de México
| | - Diego Martínez-Otero
- Centro Conjunto de Investigación en Química Sustentable
- UAEM-UNAM
- Carretera Toluca-Atlacomulco Km 14.5
- Universidad Nacional Autónoma de México
| | - Alejandro Dorazco-González
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior, Ciudad Universitaria
- México
- Mexico
| |
Collapse
|
7
|
Phuong PTM, Won HJ, Robby AI, Kim SG, Im GB, Bhang SH, Lee G, Park SY. NIR-vis-Induced pH-Sensitive TiO 2 Immobilized Carbon Dot for Controllable Membrane-Nuclei Targeting and Photothermal Therapy of Cancer Cells. ACS APPLIED MATERIALS & INTERFACES 2020; 12:37929-37942. [PMID: 32846494 DOI: 10.1021/acsami.0c11979] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This study investigated a selective and sensitive theragnosis system for the specific targeting of the membrane and nuclei based on visible-light and pH-responsive TiO2-integrated cross-linked carbon dot (C-CD/TiO2) for tumor detection and controllable photothermal therapy. The cross-linking system was formed by boronate ester linkages between the TiO2-immobilized Dopa-decyl (D-CD) and zwitterionic-formed CD (Z-CD) for nuclear targeting, which showed fluorescence "off" at physiological pH. The fluorescence recovered to the "on" state in acidic cancer cells owing to cleavages of the boronate ester bonds, resulting in the disruption of the Förster resonance energy transfer that generated different CDs useful for tumor-selective biosensors and therapy. D-CD, which is hydrophobic, can penetrate the hydrophobic sites of the cell membrane; it caused a loss in the hydrophobicity of these sites after visible-light irradiation. This was achieved by the photocatalytic activity of the TiO2 modulating energy bandgap, whereas the Z-CD targeted the nucleus, as confirmed by merged confocal microscopy images. D-CD augmented by photothermal heat also exhibited selective anticancer activity in the acidic tumor condition but showed only minimal effects at a normal site at pH 7.4. After C-CD/TiO2 injection to an in vivo tumor model, C-CD/TiO2 efficiently ablated tumors under NIR light irradiation. The C-CD/TiO2 group showed up-regulation of the pro-apoptotic markers such as P53 and BAX in tumor. This material exhibited its potential as a theragnostic sensor with excellent biocompatibility, high sensitivity, selective imaging, and direct anticancer activity via photothermal therapy.
Collapse
Affiliation(s)
- Pham Thi My Phuong
- Department of Green Bio Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
| | - Hyun Jeong Won
- Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
| | - Akhmad Irhas Robby
- Department of Green Bio Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
| | - Seul Gi Kim
- Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
| | - Gwang-Bum Im
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Suk Ho Bhang
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Gibaek Lee
- Department of Green Bio Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
- Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
| | - Sung Young Park
- Department of Green Bio Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
- Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea
| |
Collapse
|
8
|
Löw H, Mena-Osteritz E, Mullen KM, Jäger CM, von Delius M. Self-Assembly, Adaptive Response, and in,out-Stereoisomerism of Large Orthoformate Cryptands. Chempluschem 2020; 85:1008-1012. [PMID: 32347636 DOI: 10.1002/cplu.202000254] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/16/2020] [Indexed: 12/19/2022]
Abstract
We report on triethylene glycol-based orthoformate cryptands, which adapt their bridgehead configurations in response to metal templates and intramolecular hydrogen bonding in a complex manner. In contrast to smaller 1.1.1-orthoformate cryptands, the inversion from out,out-2.2.2 to in,in-2.2.2 occurs spontaneously by thermal homeomorphic isomerization, i. e., without bond breakage. The global thermodynamic minimum of the entire network, which includes an unprecedented third isomer (in,out-2.2.2), could only be reached under conditions that facilitate dynamic covalent exchange. Both inversion processes were studied in detail, including DFT calculations and MD simulations, which were particularly helpful for explaining differences between equilibrium compositions in solvents chloroform and acetonitrile. Unexpectedly, the system could be driven to the in,out-2.2.2 state by using a metal template with a size mismatch with respect to the out,out-2.2.2 cage.
Collapse
Affiliation(s)
- Henrik Löw
- Institute of Organic Chemistry, University of Ulm, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Elena Mena-Osteritz
- Institute of Organic Chemistry, University of Ulm, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Kathleen M Mullen
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, Queensland, 4001, Australia
| | - Christof M Jäger
- Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - Max von Delius
- Institute of Organic Chemistry, University of Ulm, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| |
Collapse
|
9
|
Jia C, Qi D, Zhang Y, Rissanen K, Li J. Strategies for Exploring Functions from Dynamic Combinatorial Libraries. CHEMSYSTEMSCHEM 2020. [DOI: 10.1002/syst.202000019] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Chunman Jia
- Hainan Provincial Key Lab of Fine ChemKey laboratory of Advanced Materials of Tropical Island Resources of Ministry of EducationHainan University Haikou 570228 China
| | - Dawei Qi
- MediCity Research LaboratoryUniversity of Turku Tykistökatu 6 20520 Turku Finland
| | - Yucang Zhang
- Hainan Provincial Key Lab of Fine ChemKey laboratory of Advanced Materials of Tropical Island Resources of Ministry of EducationHainan University Haikou 570228 China
| | - Kari Rissanen
- Department of ChemistryUniversity of Jyväskylä P.O. Box 35 40014 Jyväskylä Finland
| | - Jianwei Li
- Hainan Provincial Key Lab of Fine ChemKey laboratory of Advanced Materials of Tropical Island Resources of Ministry of EducationHainan University Haikou 570228 China
- MediCity Research LaboratoryUniversity of Turku Tykistökatu 6 20520 Turku Finland
| |
Collapse
|
10
|
António JPM, Russo R, Carvalho CP, Cal PMSD, Gois PMP. Boronic acids as building blocks for the construction of therapeutically useful bioconjugates. Chem Soc Rev 2019; 48:3513-3536. [DOI: 10.1039/c9cs00184k] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review summarizes boronic acid's contribution to the development of bioconjugates with a particular focus on the molecular mechanisms underlying its role in the construction and function of the bioconjugate, namely as a bioconjugation warhead, as a payload and as part of a bioconjugate linker.
Collapse
Affiliation(s)
- João P. M. António
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- Lisbon
- Portugal
| | - Roberto Russo
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- Lisbon
- Portugal
| | - Cátia Parente Carvalho
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- Lisbon
- Portugal
| | - Pedro M. S. D. Cal
- Instituto de Medicina Molecular
- Faculty of Medicine
- Universidade de Lisboa
- Lisbon
- Portugal
| | - Pedro M. P. Gois
- Research Institute for Medicines (iMed.ULisboa)
- Faculty of Pharmacy
- Universidade de Lisboa
- Lisbon
- Portugal
| |
Collapse
|
11
|
Kim S, Zhu H, Demirci A, Yamamoto S, Miyashita T, Mitsuishi M. Cyclosiloxane polymer bearing dynamic boronic acid: synthesis and bottom-up nanocoating. Polym Chem 2019. [DOI: 10.1039/c9py00855a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Boronic acid-containing polycyclosiloxane showed unique self-assembly nanofilm formation (6 nm film thickness) on various substrates and provided film-based metal ion sensor capability through dynamic covalent bonding.
Collapse
Affiliation(s)
- Soyeon Kim
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)
- Tohoku University
- Sendai
- Japan
| | - Huie Zhu
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)
- Tohoku University
- Sendai
- Japan
| | - Ali Demirci
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)
- Tohoku University
- Sendai
- Japan
| | - Shunsuke Yamamoto
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)
- Tohoku University
- Sendai
- Japan
| | - Tokuji Miyashita
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)
- Tohoku University
- Sendai
- Japan
| | - Masaya Mitsuishi
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)
- Tohoku University
- Sendai
- Japan
| |
Collapse
|
12
|
Lee S, Stubelius A, Hamelmann N, Tran V, Almutairi A. Inflammation-Responsive Drug-Conjugated Dextran Nanoparticles Enhance Anti-Inflammatory Drug Efficacy. ACS APPLIED MATERIALS & INTERFACES 2018; 10:40378-40387. [PMID: 30067018 PMCID: PMC7170936 DOI: 10.1021/acsami.8b08254] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Stimuli-responsive nanoparticles (NPs) are especially interesting to enhance the drug delivery specificity for biomedical applications. With the aim to achieve a highly stable and inflammation-specific drug release, we designed a reactive oxygen species (ROS)-responsive dextran-drug conjugate (Nap-Dex). By blending Nap-Dex with the acid-sensitive acetalated dextran polymer, we achieved a dual-responsive NP with high specificity toward the inflammatory environment. The inflammatory environment not only has elevated ROS levels but also has a lower pH than healthy tissues, making pH and ROS highly suitable triggers to target inflammatory diseases. The anti-inflammatory cyclooxygenase inhibitor naproxen was modified with an ROS-responsive phenylboronic acid (PBA) and conjugated onto dextran. The dextran units were functionalized with up to 87% modified naproxen. This resulted in a complete drug release from the polymer within 20 min at 10 mM H2O2. The dual-responsive NPs reduced the levels of the proinflammatory cytokine IL-6 120 times more efficiently and TNFα 6 times more efficiently than free naproxen from lipopolysaccharide (LPS)-activated macrophages. These additional anti-inflammatory effects were found to be mainly attributed to ROS-scavenging effects. In addition, the model cargo fluorescein diacetate was released in an LPS-induced inflammatory response in vitro. We believe that drug conjugation using PBA can be applied to various drugs and dextran-based materials for enhanced drug efficacy, where this work demonstrates the significance of functionalized carbohydrates polymer-drug conjugates.
Collapse
Affiliation(s)
| | | | - Naomi Hamelmann
- Department of Biomolecular Nanotechnology, MESA+ Institute of Nanotechnology, Faculty of Science and Technology , University of Twente , P.O. Box 217, 7500 AE Enschede , The Netherlands
| | | | | |
Collapse
|
13
|
Orrillo AG, Escalante AM, Martinez-Amezaga M, Cabezudo I, Furlan RLE. Molecular Networks in Dynamic Multilevel Systems. Chemistry 2018; 25:1118-1127. [DOI: 10.1002/chem.201804143] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/17/2018] [Indexed: 11/07/2022]
Affiliation(s)
- A. Gastón Orrillo
- Farmacognosia, Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario-CONICET; S2002LRK Rosario Argentina
| | - Andrea M. Escalante
- Farmacognosia, Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario-CONICET; S2002LRK Rosario Argentina
| | - Maitena Martinez-Amezaga
- Farmacognosia, Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario-CONICET; S2002LRK Rosario Argentina
| | - Ignacio Cabezudo
- Farmacognosia, Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario-CONICET; S2002LRK Rosario Argentina
| | - Ricardo L. E. Furlan
- Farmacognosia, Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario-CONICET; S2002LRK Rosario Argentina
| |
Collapse
|
14
|
Vrbata D, Uchman M. Preparation of lactic acid- and glucose-responsive poly(ε-caprolactone)-b-poly(ethylene oxide) block copolymer micelles using phenylboronic ester as a sensitive block linkage. NANOSCALE 2018; 10:8428-8442. [PMID: 29666865 DOI: 10.1039/c7nr09427b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The present study describes the synthesis, self-assembly and responsiveness to glucose and lactic acid of biocompatible and biodegradable block copolymer micelles using phenylboronic ester as the linkage between hydrophobic poly(ε-caprolactone) (PCL) and hydrophilic poly(ethylene oxide) (PEO). The PCL block with pendant phenylboronic acid (PCLBA) was synthesized by combining ε-caprolactone (ε-CL) ring-opening polymerisation (ROP), using 4-hydroxymethyl(phenylboronic) acid pinacolate as the initiator, and pinacol deprotection. The glucose-terminated PEO (PEOGlc) was prepared by 1,3-dipolar, Cu(i)-catalysed, alkyne-azide cycloaddition of α-methoxy-ω-propargyl poly(ethylene oxide) and 1-azido-1-deoxy-d-glucopyranose. All new compounds were evaluated by 1H NMR spectroscopy and by SEC analysis. PCLBA and PEOGlc blocks were linked in NaOH acetone solution, which was indirectly confirmed by Alizarin Red S fluorescence and directly by 1H NMR spectroscopy. Dialysis against Milli-Q water induced the self-assembly of PCLBA-b-PEOGlc nanoparticles, which were characterised by static (SLS) and dynamic (DLS) light scattering and by cryogenic transmission electron microscopy (cryo-TEM). Furthermore, the microscopic properties of the charged interface between the hydrophobic PCLBA core and the hydrophilic PEOGlc shell were examined by electrophoretic light scattering (zeta potential) and by fluorescence spectroscopy using the fluorescent probe 5-(N-dodecanoyl)aminofluorescein (DAF) as a pH indicator. Subsequently, the nanoparticles were transferred to a phosphate buffer saline (PBS) solution supplemented with different concentrations of glucose to simulate the physiological conditions in blood or lactic acid to simulate acidic cytosolic or endosomal conditions in tumour cells. Adding a surplus of glucose or lactic acid, which competitively binds to PBA, removes the stabilising hydrophilic PEOGlc blocks, thereby triggering marked nanoparticle aggregation. However, the rate of aggregation induced by lactic acid is considerably faster than that induced by glucose, as confirmed by light scattering. Thus, this novel block copolymer may contribute to the field of selective, lactic acid- and/or glucose-responsive drug delivery vehicle design under both pathological and physiological conditions.
Collapse
Affiliation(s)
- David Vrbata
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic.
| | | |
Collapse
|
15
|
Kim C, Ejima H, Yoshie N. Non-swellable self-healing polymer with long-term stability under seawater. RSC Adv 2017. [DOI: 10.1039/c7ra01778b] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
A non-swellable and highly self-healable polymer in seawater is obtained. Dynamic crosslinking of catechol-based polymers with p-phenyldiboronic acid through non-ionic boronate ester bonds is the key to realizing these two properties simultaneously.
Collapse
Affiliation(s)
- Chaehoon Kim
- Institute of Industrial Science
- The University of Tokyo
- Meguro-ku
- Japan
| | - Hirotaka Ejima
- Department of Materials Engineering
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Naoko Yoshie
- Institute of Industrial Science
- The University of Tokyo
- Meguro-ku
- Japan
| |
Collapse
|
16
|
Fritze UF, von Delius M. Dynamic disulfide metathesis induced by ultrasound. Chem Commun (Camb) 2016; 52:6363-6. [PMID: 27056064 DOI: 10.1039/c6cc02034h] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The reversible metathesis of disulfide bonds is generally induced by a combination of a reducing agent and base or by irradiation with ultraviolet light. Here we report that ultrasound irradiation is suitable for generating clean equilibrium mixtures of disulfides within one hour or one day, depending on the sonication source. Preliminary mechanistic investigations suggest that the solvent plays an active role in producing initiator radicals.
Collapse
Affiliation(s)
- Urs F Fritze
- Friedrich-Alexander University Erlangen-Nürnberg (FAU), Department of Chemistry and Pharmacy & Interdisciplinary Center of Molecular Materials (ICMM), Henkestrasse 42, 91054 Erlangen, Germany.
| | | |
Collapse
|
17
|
Fischer SN, Geyer A. Assembly of synthetic Aβ miniamyloids on polyol templates. Beilstein J Org Chem 2016; 11:2646-53. [PMID: 26734110 PMCID: PMC4685884 DOI: 10.3762/bjoc.11.284] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 11/28/2015] [Indexed: 12/22/2022] Open
Abstract
Covalent dynamic chemistry is used to mimic the first steps of the highly cooperative fibril formation of Aβ peptides. For that purpose, Aβ peptide pentapeptide boronic acids 1 and 2 were synthesized by solid-phase peptide synthesis and studied in esterification experiments with polyhydroxylated templates. The bis-hydroxylated dipeptide Hot=Tap serves as a template of adjustable degree of oligomerization which spontaneously forms boronic esters with peptides of type 1 and 2. Nuclear magnetic resonance can differentiate between regioisomeric boronic esters and identifies preferred sites of esterification on the dimeric template 9. 2-Formylphenylboronic acid (14) is used to link the parent pentapeptide Leu-Val-Phe-Phe-Ala to the template 16 to obtain threefold boronic ester 17. The miniamyloid 17 assembles from seven components by imine and boronic ester bonds between the peptides and the template. The relative orientation and spacing of the peptides mimic the assembly of peptides in Alzheimer β-amyloids.
Collapse
Affiliation(s)
- Sebastian Nils Fischer
- Faculty of Chemistry, Philipps University Marburg, Hans-Meerwein-Straße 4, 35032 Marburg, Germany
| | - Armin Geyer
- Faculty of Chemistry, Philipps University Marburg, Hans-Meerwein-Straße 4, 35032 Marburg, Germany
| |
Collapse
|
18
|
Zhang D, Dumont MJ, Cherestes A. An efficient strategy for the synthesis of 5-hydroxymethylfurfural derivative based poly(β-thioether ester) via thiol-Michael addition polymerization. RSC Adv 2016. [DOI: 10.1039/c6ra17532e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A derivative of 5-hydroxymethylfurfural was synthesized for the thiol-Michael addition reaction.
Collapse
Affiliation(s)
- Daihui Zhang
- Department of Bioresource Engineering
- McGill University
- Sainte-Anne-de-Bellevue
- Canada
| | - Marie-Josée Dumont
- Department of Bioresource Engineering
- McGill University
- Sainte-Anne-de-Bellevue
- Canada
| | - Alice Cherestes
- Department of Bioresource Engineering
- McGill University
- Sainte-Anne-de-Bellevue
- Canada
| |
Collapse
|