51
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Deane OJ, Jennings J, Armes SP. Shape-shifting thermoreversible diblock copolymer nano-objects via RAFT aqueous dispersion polymerization of 4-hydroxybutyl acrylate. Chem Sci 2021; 12:13719-13729. [PMID: 34760156 PMCID: PMC8549797 DOI: 10.1039/d1sc05022b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 09/27/2021] [Indexed: 11/21/2022] Open
Abstract
2-Hydroxypropyl methacrylate (HPMA) is a useful model monomer for understanding aqueous dispersion polymerization. 4-Hydroxybutyl acrylate (HBA) is an isomer of HPMA: it has appreciably higher aqueous solubility so its homopolymer is more weakly hydrophobic. Moreover, PHBA possesses a significantly lower glass transition temperature than PHPMA, which ensures greater chain mobility. The reversible addition-fragmentation chain transfer (RAFT) aqueous dispersion polymerization of HBA using a poly(ethylene glycol) (PEG113) precursor at 30 °C produces PEG113-PHBA200-700 diblock copolymer nano-objects. Using glutaraldehyde to crosslink the PHBA chains allows TEM studies, which reveal the formation of spheres, worms or vesicles under appropriate conditions. Interestingly, the partially hydrated highly mobile PHBA block enabled linear PEG113-PHBA x spheres, worms or vesicles to be reconstituted from freeze-dried powders on addition of water at 20 °C. Moreover, variable temperature 1H NMR studies indicated that the apparent degree of hydration of the PHBA block increases from 5% to 80% on heating from 0 °C to 60 °C indicating uniform plasticization. In contrast, the PHPMA x chains within PEG113-PHPMA x nano-objects become dehydrated on raising the temperature: this qualitative difference is highly counter-intuitive given that PHBA and PHPMA are isomers. The greater (partial) hydration of the PHBA block at higher temperature drives the morphological evolution of PEG113-PHBA260 spheres to form worms or vesicles, as judged by oscillatory rheology, dynamic light scattering, small-angle X-ray scattering and TEM studies. Finally, a variable temperature phase diagram is constructed for 15% w/w aqueous dispersions of eight PEG113-PHBA200-700 diblock copolymers. Notably, PEG113-PHBA350 can switch reversibly from spheres to worms to vesicles to lamellae during a thermal cycle.
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Affiliation(s)
- Oliver J Deane
- Dainton Building, Department of Chemistry, University of Sheffield Brook Hill Sheffield South Yorkshire S3 7HF UK
| | - James Jennings
- Dainton Building, Department of Chemistry, University of Sheffield Brook Hill Sheffield South Yorkshire S3 7HF UK
| | - Steven P Armes
- Dainton Building, Department of Chemistry, University of Sheffield Brook Hill Sheffield South Yorkshire S3 7HF UK
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52
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Kaupbayeva B, Murata H, Matyjaszewski K, Russell AJ, Boye S, Lederer A. A comprehensive analysis in one run - in-depth conformation studies of protein-polymer chimeras by asymmetrical flow field-flow fractionation. Chem Sci 2021; 12:13848-13856. [PMID: 34760170 PMCID: PMC8549772 DOI: 10.1039/d1sc03033g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 09/24/2021] [Indexed: 01/04/2023] Open
Abstract
Polymer-based protein engineering has enabled the synthesis of a variety of protein-polymer conjugates that are widely applicable in therapeutic, diagnostic and biotechnological industries. Accurate characterizations of physical-chemical properties, in particular, molar masses, sizes, composition and their dispersities are critical parameters that determine the functionality and conformation of protein-polymer conjugates and are important for creating reproducible manufacturing processes. Most of the current characterization techniques suffer from fundamental limitations and do not provide an accurate understanding of a sample's true nature. In this paper, we demonstrate the advantage of asymmetrical flow field-flow fractionation (AF4) coupled with multiple detectors for the characterization of a library of complex, zwitterionic and neutral protein-polymer conjugates. This method allows for determination of intrinsic physical properties of protein-polymer chimeras from a single, rapid measurement.
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Affiliation(s)
- Bibifatima Kaupbayeva
- Department of Biological Sciences, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA 15213 USA
- Center for Polymer-Based Protein Engineering, Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 USA
| | - Hironobu Murata
- Center for Polymer-Based Protein Engineering, Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 USA
| | - Krzysztof Matyjaszewski
- Center for Polymer-Based Protein Engineering, Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 USA
- Department of Chemistry, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA 15213 USA
| | - Alan J Russell
- Department of Biological Sciences, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA 15213 USA
- Center for Polymer-Based Protein Engineering, Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 USA
- Department of Chemistry, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA 15213 USA
- Department of Chemical Engineering, Carnegie Mellon University 5000 Forbes Avenue Pittsburgh PA 15213 USA
| | - Susanne Boye
- Center Macromolecular Structure Analysis, Leibniz-Institut für Polymerforschung Dresden e.V. Hohe Straße 6 Dresden 01069 Germany
| | - Albena Lederer
- Center Macromolecular Structure Analysis, Leibniz-Institut für Polymerforschung Dresden e.V. Hohe Straße 6 Dresden 01069 Germany
- Stellenbosch University, Department of Chemistry and Polymer Science Private Bag X1 Matieland 7602 South Africa
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53
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Naveenkumar PM, Singh RK, Mann S, Seth JR, Sharma KP. Polymer-Surfactant Driven Interactions and the Resultant Microstructure in Protein-Containing Liquid Crystal Droplets. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:11949-11960. [PMID: 34612656 DOI: 10.1021/acs.langmuir.1c00960] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Integration of molecular liquid crystals (LCs) with functional proteins can provide new class of materials for potential applications in optical biosensing. However, hydrophobic nematic LCs (length ∼ 1-2 nm) and hydrophilic proteins, size ∼ O (nm), do not intermix without chemical modification of at least one of them. Bioconjugation of proteins with a polyethylene glycol-based polymeric surfactant (PS) can provide a core-shell system that is sequestered within nonaqueous LC (4-cyano-4'-pentylbiphenyl) microdroplets. However, the nature of interactions between the components and detailed understanding of the resultant hybrid microstructure remains unclear. Here, using a combination of isothermal titration calorimetry (ITC), fluorescence microscopy, and infrared-imaging spectroscopy, we show that strong hydrophobic interactions between the LC and PS drives the sequestration of a myoglobin-PS (Mb-PS; dispersed in the aqueous phase) into the LC spherical microdroplets or even into a bulk LC phase. The average values of both, the binding constant and the standard molar enthalpy change, are increased by approximately a factor of 2.5 times when the unmodified Mb is conjugated to the PS. Small-angle X-ray scattering studies reveal that LC molecules act as a solvent for the Mb-PS conjugate; furthermore, the LC long-range order is disturbed due to mixing, as exemplified by the change in its coherence length from 8.9 to 5.7 nm. Detailed all-atomistic molecular dynamic simulations for a three-component PS-water-LC system show a change in interaction energy of -144 kJ mol-1 PS-1 upon the contact of PS chains (initially dispersed in water) with LC and agree with the ITC experiments.
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Affiliation(s)
| | - Raju Kumar Singh
- Centre for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Stephen Mann
- School of Chemistry, University of Bristol, Bristol BS8 1TS, U.K
| | - Jyoti R Seth
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Kamendra P Sharma
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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54
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Perera BLA, Colina CM. Cluster formation of initiators as a tool to impose conformational stability to unstructured regions of a protein. Mol Phys 2021. [DOI: 10.1080/00268976.2021.1963000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- B. Lakshitha A. Perera
- Department of Chemistry, University of Florida, Gainesville, FL, USA
- George and Josephine Butler Polymer Research Laboratory, University of Florida, Gainesville, FL, USA
- Center for Macromolecular Science and Engineering, University of Florida, Gainesville, FL, USA
| | - Coray M. Colina
- Department of Chemistry, University of Florida, Gainesville, FL, USA
- George and Josephine Butler Polymer Research Laboratory, University of Florida, Gainesville, FL, USA
- Center for Macromolecular Science and Engineering, University of Florida, Gainesville, FL, USA
- Department of Material Science and Engineering, University of Florida, Gainesville, FL, USA
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55
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Huang Y, Li X, Zhang YC, Shi Z, Zeng L, Xie J, Du Y, Lu D, Hu Z, Cai T, Luo Z. Aqueous Protein-Polymer Bioconjugation via Photoinduced RAFT Polymerization Using High Loading Heterogeneous Catalyst. ACS APPLIED MATERIALS & INTERFACES 2021; 13:44488-44496. [PMID: 34514775 DOI: 10.1021/acsami.1c13770] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Light-driven polymerization, such as photoinduced electron/energy transfer-reversible addition-fragmentation chain transfer (PET-RAFT) polymerization, enables biological benign conditions and versatile functional polymer structure design, which is readily used in protein-polymer bioconjugates. However, conventional metalloporphyrinic homogeneous catalysts for PET-RAFT polymerization suffer from limited aqueous solubility and tedious purification. Here we demonstrate the design of PET-RAFT photocatalyst from the reticular assembled Zr-porphyrinic metal-organic frameworks (MOFs), along with a biomacromolecule-based chain transfer agent, as efficient bioconjugation tools in water. Our methodology offers manufacturing advantages on bioconjugates under mild conditions such that MTT (3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide) and cytotoxicity assays have shown the preservation of the protein integrity, bioactivity, and high cell viability after PET-RAFT polymerization. We find that the fast kinetics are benefiting from the ultrahigh loading of metalloporphyrins in MOF-525-Zn. This heterogeneous catalyst also allows us to maintain living characteristics to incorporate myriads of monomers into block copolymers. Other advantages like easy postreaction purification, reusability, and high oxygen tolerance even in an open system are demonstrated. This study provides a tool of highly efficient heterogeneous photocatalysts for polymer-protein bioconjugation in aqueous media and paves the road for biological applications.
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Affiliation(s)
- Ya Huang
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology, and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 999077, P. R. China
| | - Xue Li
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Yu Chi Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Zhiwei Shi
- Guangzhou Baiyun Medical Adhesive Company Ltd., Guangzhou, Guangdong 510405, P. R. China
| | - Lun Zeng
- Guangzhou Baiyun Medical Adhesive Company Ltd., Guangzhou, Guangdong 510405, P. R. China
| | - Jianbo Xie
- Guangzhou Baiyun Medical Adhesive Company Ltd., Guangzhou, Guangdong 510405, P. R. China
| | - Yucong Du
- Guangzhou Baiyun Medical Adhesive Company Ltd., Guangzhou, Guangdong 510405, P. R. China
| | - Dong Lu
- Guangzhou HKUST Fok Ying Tung Research Institute, Guangzhou, Guangdong 511458, P. R. China
| | - Zhigang Hu
- Silver Age Engineering Plastics (Dongguan) Company Ltd., Dongguan, Guangdong 523187, P. R. China
| | - Tao Cai
- Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Science, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Zhengtang Luo
- Department of Chemical and Biological Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, William Mong Institute of Nano Science and Technology, and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 999077, P. R. China
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56
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Kiran P, Khan A, Neekhra S, Pallod S, Srivastava R. Nanohybrids as Protein-Polymer Conjugate Multimodal Therapeutics. FRONTIERS IN MEDICAL TECHNOLOGY 2021; 3:676025. [PMID: 35047929 PMCID: PMC8757875 DOI: 10.3389/fmedt.2021.676025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 05/21/2021] [Indexed: 12/12/2022] Open
Abstract
Protein therapeutic formulations are being widely explored as multifunctional nanotherapeutics. Challenges in ensuring susceptibility and efficacy of nanoformulation still prevail owing to various interactions with biological fluids before reaching the target site. Smart polymers with the capability of masking drugs, ease of chemical modification, and multi-stimuli responsiveness can assist controlled delivery. An active moiety like therapeutic protein has started to be known as an important biological formulation with a diverse medicinal prospect. The delivery of proteins and peptides with high target specificity has however been tedious, due to their tendency to aggregate formation in different environmental conditions. Proteins due to high chemical reactivity and poor bioavailability are being researched widely in the field of nanomedicine. Clinically, multiple nano-based formulations have been explored for delivering protein with different carrier systems. A biocompatible and non-toxic polymer-based delivery system serves to tailor the polymer or drug better. Polymers not only aid delivery to the target site but are also responsible for proper stearic orientation of proteins thus protecting them from internal hindrances. Polymers have been shown to conjugate with proteins through covalent linkage rendering stability and enhancing therapeutic efficacy prominently when dealing with the systemic route. Here, we present the recent developments in polymer-protein/drug-linked systems. We aim to address questions by assessing the properties of the conjugate system and optimized delivery approaches. Since thorough characterization is the key aspect for technology to enter into the market, correlating laboratory research with commercially available formulations will also be presented in this review. By examining characteristics including morphology, surface properties, and functionalization, we will expand different hybrid applications from a biomaterial stance applied in in vivo complex biological conditions. Further, we explore understanding related to design criteria and strategies for polymer-protein smart nanomedicines with their potential prophylactic theranostic applications. Overall, we intend to highlight protein-drug delivery through multifunctional smart polymers.
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Affiliation(s)
- Pallavi Kiran
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Amreen Khan
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
- Center for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai, India
| | - Suditi Neekhra
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Shubham Pallod
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Rohit Srivastava
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
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57
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Amukarimi S, Ramakrishna S, Mozafari M. Smart biomaterials—A proposed definition and overview of the field. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2021. [DOI: 10.1016/j.cobme.2021.100311] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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58
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Izadi F, Arthur‐Baidoo E, Strover LT, Yu L, Coote ML, Moad G, Denifl S. Selective Bond Cleavage in RAFT Agents Promoted by Low-Energy Electron Attachment. Angew Chem Int Ed Engl 2021; 60:19128-19132. [PMID: 34214239 PMCID: PMC8456798 DOI: 10.1002/anie.202107480] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Indexed: 11/08/2022]
Abstract
Radical polymerization with reversible addition-fragmentation chain transfer (RAFT polymerization) has been successfully applied to generate polymers of well-defined architecture. For RAFT polymerization a source of radicals is required. Recent work has demonstrated that for minimal side-reactions and high spatio-temporal control these should be formed directly from the RAFT agent or macroRAFT agent (usually carbonothiosulfanyl compounds) thermally, photochemically or by electrochemical reduction. In this work, we investigated low-energy electron attachment to a common RAFT agent (cyanomethyl benzodithioate), and, for comparison, a simple carbonothioylsulfanyl compound (dimethyl trithiocarbonate, DMTTC) in the gas phase by means of mass spectrometry as well as quantum chemical calculations. We observe for both compounds that specific cleavage of the C-S bond is induced upon low-energy electron attachment at electron energies close to zero eV. This applies even in the case of a poor homolytic leaving group (. CH3 in DMTTC). All other dissociation reactions found at higher electron energies are much less abundant. The present results show a high control of the chemical reactions induced by electron attachment.
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Affiliation(s)
- Farhad Izadi
- Institut für Ionenphysik und Angewandte PhysikLeopold-Franzens Universität InnsbruckTechnikerstrasse 25A-6020InnsbruckAustria
| | - Eugene Arthur‐Baidoo
- Institut für Ionenphysik und Angewandte PhysikLeopold-Franzens Universität InnsbruckTechnikerstrasse 25A-6020InnsbruckAustria
| | | | - Li‐Juan Yu
- Research School of ChemistryAustralian National UniversityCanberraACTAustralia
| | - Michelle L. Coote
- Research School of ChemistryAustralian National UniversityCanberraACTAustralia
| | | | - Stephan Denifl
- Institut für Ionenphysik und Angewandte PhysikLeopold-Franzens Universität InnsbruckTechnikerstrasse 25A-6020InnsbruckAustria
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59
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Izadi F, Arthur‐Baidoo E, Strover LT, Yu L, Coote ML, Moad G, Denifl S. Selektive Bindungsspaltung in RAFT Agenzien durch niederenergetische Elektronenanlagerung. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Farhad Izadi
- Institut für Ionenphysik und Angewandte Physik Leopold-Franzens Universität Innsbruck Technikerstrasse 25 A-6020 Innsbruck Österreich
| | - Eugene Arthur‐Baidoo
- Institut für Ionenphysik und Angewandte Physik Leopold-Franzens Universität Innsbruck Technikerstrasse 25 A-6020 Innsbruck Österreich
| | | | - Li‐Juan Yu
- Research School of Chemistry Australian National University Canberra ACT Australien
| | - Michelle L. Coote
- Research School of Chemistry Australian National University Canberra ACT Australien
| | - Graeme Moad
- CSIRO Manufacturing Clayton VIC 3168 Australien
| | - Stephan Denifl
- Institut für Ionenphysik und Angewandte Physik Leopold-Franzens Universität Innsbruck Technikerstrasse 25 A-6020 Innsbruck Österreich
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60
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Huynh V, Ifraimov N, Wylie RG. Modulating the Thermoresponse of Polymer-Protein Conjugates with Hydrogels for Controlled Release. Polymers (Basel) 2021; 13:2772. [PMID: 34451311 PMCID: PMC8399950 DOI: 10.3390/polym13162772] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/04/2021] [Accepted: 08/13/2021] [Indexed: 01/06/2023] Open
Abstract
Sustained release is being explored to increase plasma and tissue residence times of polymer-protein therapeutics for improved efficacy. Recently, poly(oligo(ethylene glycol) methyl ether methacrylate) (PEGMA) polymers have been established as potential PEG alternatives to further decrease immunogenicity and introduce responsive or sieving properties. We developed a drug delivery system that locally depresses the lower critical solution temperature (LCST) of PEGMA-protein conjugates within zwitterionic hydrogels for controlled release. Inside the hydrogel the conjugates partially aggregate through PEGMA-PEGMA chain interactions to limit their release rates, whereas conjugates outside of the hydrogel are completely solubilized. Release can therefore be tuned by altering hydrogel components and the PEGMA's temperature sensitivity without the need for traditional controlled release mechanisms such as particle encapsulation or affinity interactions. Combining local LCST depression technology and degradable zwitterionic hydrogels, complete release of the conjugate was achieved over 13 days.
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Affiliation(s)
- Vincent Huynh
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON L8S 4M1, Canada;
| | - Natalie Ifraimov
- School of Biomedical Engineering, McMaster University, Hamilton, ON L8S 4M1, Canada;
| | - Ryan G. Wylie
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON L8S 4M1, Canada;
- School of Biomedical Engineering, McMaster University, Hamilton, ON L8S 4M1, Canada;
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61
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Yuan R, Sun H, He H. Rational Construction of a Responsive Azo-Functionalized Porous Organic Framework for CO 2 Sorption. Molecules 2021; 26:4993. [PMID: 34443581 PMCID: PMC8398054 DOI: 10.3390/molecules26164993] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/08/2021] [Accepted: 08/12/2021] [Indexed: 11/16/2022] Open
Abstract
An azo-functionalized porous organic framework (denoted as JJU-1) was synthesized via FeCl3-promoted oxidative coupling polymerization. By virtue of a porous skeleton and a light/heat responsive azo functional group, this task-specific JJU-1 displays a reversible stimuli-responsive adsorption property triggered by UV irradiation and heat treatment. The initial Brunauer-Emmet-Teller (BET) surface area of this porous material is 467 m2 g-1. The CO2 sorption isotherms exhibit a slight decrease after UV irradiation because of the trans to cis conversion of the azo functional skeleton. It is worth mentioning that the responsive CO2 adsorption performance can be recycled for three cycles via alternating external stimuli, confirming the excellently reversible switchability of trans-to-cis isomerization and controllable CO2 adsorption.
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Affiliation(s)
- Rongrong Yuan
- Department of Materials Science and Engineering, Jilin Jianzhu University, Changchun 130118, China; (R.Y.); (H.S.)
| | - Hao Sun
- Department of Materials Science and Engineering, Jilin Jianzhu University, Changchun 130118, China; (R.Y.); (H.S.)
| | - Hongming He
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
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62
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Zhu H, Gu D, Rao Z, Li Y, Liu Y, Hao J. Design of gel-to-sol UCST transition peptides by controlling polypeptide β-sheet nanostructures. Polym J 2021. [DOI: 10.1038/s41428-021-00490-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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63
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Pan S, Richardson JJ, Christofferson AJ, Besford QA, Zheng T, Wood BJ, Duan X, Jara Fornerod MJ, McConville CF, Yarovsky I, Guldin S, Jiang L, Caruso F. Fluorinated Metal-Organic Coatings with Selective Wettability. J Am Chem Soc 2021; 143:9972-9981. [PMID: 34170661 DOI: 10.1021/jacs.1c04396] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Surface chemistry is a major factor that determines the wettability of materials, and devising broadly applicable coating strategies that afford tunable and selective surface properties required for next-generation materials remains a challenge. Herein, we report fluorinated metal-organic coatings that display water-wetting and oil-repelling characteristics, a wetting phenomenon different from responsive wetting induced by external stimuli. We demonstrate this selective wettability with a library of metal-organic coatings using catechol-based coordination and silanization (both fluorinated and fluorine-free), enabling sensing through interfacial reconfigurations in both gaseous and liquid environments, and establish a correlation between the coating wettability and polarity of the liquids. This selective wetting performance is substrate-independent, spontaneous, durable, and reversible and occurs over a range of polar and nonpolar liquids (60 studied). These results provide insight into advanced liquid-solid interactions and a pathway toward tuning interfacial affinities and realizing robust, selective superwettability according to the surrounding conditions.
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Affiliation(s)
- Shuaijun Pan
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Joseph J Richardson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | | | - Quinn A Besford
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Tian Zheng
- Materials Characterisation and Fabrication Platform, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Barry J Wood
- Centre for Microscopy & Microanalysis, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Xiaofei Duan
- School of Chemistry, TrACEES Platform, The University of Melbourne, Parkville, Victoria 3010, Australia
| | | | | | - Irene Yarovsky
- School of Engineering, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Stefan Guldin
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, U.K
| | - Lei Jiang
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
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64
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Stevens CA, Kaur K, Klok HA. Self-assembly of protein-polymer conjugates for drug delivery. Adv Drug Deliv Rev 2021; 174:447-460. [PMID: 33984408 DOI: 10.1016/j.addr.2021.05.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 04/22/2021] [Accepted: 05/03/2021] [Indexed: 01/07/2023]
Abstract
Protein-polymer conjugates are a class of molecules that combine the stability of polymers with the diversity, specificity, and functionality of biomolecules. These bioconjugates can result in hybrid materials that display properties not found in their individual components and can be particularly relevant for drug delivery applications. Engineering amphiphilicity into these bioconjugate materials can lead to phase separation and the assembly of high-order structures. The assembly, termed self-assembly, of these hierarchical structures entails multiple levels of organization: at each level, new properties emerge, which are, in turn, influenced by lower levels. Here, we provide a critical review of protein-polymer conjugate self-assembly and how these materials can be used for therapeutic applications and drug delivery. In addition, we discuss central bioconjugate design questions and propose future perspectives for the field of protein-polymer conjugate self-assembly.
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Affiliation(s)
- Corey A Stevens
- École Polytechnique Fédérale de Lausanne (EPFL), Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères, Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland.
| | - Kuljeet Kaur
- École Polytechnique Fédérale de Lausanne (EPFL), Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères, Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland
| | - Harm-Anton Klok
- École Polytechnique Fédérale de Lausanne (EPFL), Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères, Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland
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65
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Mendes LG, Ferreira FV, Sielski MS, Livi S, Rocco SA, Sforça ML, Burga-Sánchez J, Vicente CP, Mei LHI. Electrospun Nanofibrous Architectures of Thrombin-Loaded Poly(ethylene oxide) for Faster in Vivo Wound Clotting. ACS APPLIED BIO MATERIALS 2021; 4:5240-5250. [DOI: 10.1021/acsabm.1c00402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Larissa G. Mendes
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas 13083-852, São Paulo, Brazil
| | - Filipe V. Ferreira
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas 13083-852, São Paulo, Brazil
| | - Micheli S. Sielski
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas, Campinas 13083-862, São Paulo, Brazil
| | - Sebastien Livi
- Université de Lyon, Ingénierie des Matériaux Polymères CNRS, UMR 5223, INSA Lyon, Villeurbanne F-69621, France
| | - Silvana A. Rocco
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-100, São Paulo, Brazil
| | - Maurício L. Sforça
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-100, São Paulo, Brazil
| | - Jonny Burga-Sánchez
- Physiological Science Department, Piracicaba Dental School, University of Campinas, Campinas 13414-903, São Paulo, Brazil
| | - Cristina P. Vicente
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas, Campinas 13083-862, São Paulo, Brazil
| | - Lucia H. I. Mei
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas 13083-852, São Paulo, Brazil
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66
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Xu L, Kuan SL, Weil T. Contemporary Approaches for Site-Selective Dual Functionalization of Proteins. Angew Chem Int Ed Engl 2021; 60:13757-13777. [PMID: 33258535 PMCID: PMC8248073 DOI: 10.1002/anie.202012034] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Indexed: 12/16/2022]
Abstract
Site-selective protein functionalization serves as an invaluable tool for investigating protein structures and functions in complicated cellular environments and accomplishing semi-synthetic protein conjugates such as traceable therapeutics with improved features. Dual functionalization of proteins allows the incorporation of two different types of functionalities at distinct location(s), which greatly expands the features of native proteins. The attachment and crosstalk of a fluorescence donor and an acceptor dye provides fundamental insights into the folding and structural changes of proteins upon ligand binding in their native cellular environments. Moreover, the combination of drug molecules with different modes of action, imaging agents or stabilizing polymers provides new avenues to design precision protein therapeutics in a reproducible and well-characterizable fashion. This review aims to give a timely overview of the recent advancements and a future perspective of this relatively new research area. First, the chemical toolbox for dual functionalization of proteins is discussed and compared. The strengths and limitations of each strategy are summarized in order to enable readers to select the most appropriate method for their envisaged applications. Thereafter, representative applications of these dual-modified protein bioconjugates benefiting from the synergistic/additive properties of the two synthetic moieties are highlighted.
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Affiliation(s)
- Lujuan Xu
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Institute of Inorganic Chemistry IUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Seah Ling Kuan
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Institute of Inorganic Chemistry IUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
| | - Tanja Weil
- Max Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
- Institute of Inorganic Chemistry IUlm UniversityAlbert-Einstein-Allee 1189081UlmGermany
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67
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Golunova A, Velychkivska N, Mikšovská Z, Chochola V, Jaroš J, Hampl A, Pop-Georgievski O, Proks V. Direct and Indirect Biomimetic Peptide Modification of Alginate: Efficiency, Side Reactions, and Cell Response. Int J Mol Sci 2021; 22:5731. [PMID: 34072085 PMCID: PMC8198284 DOI: 10.3390/ijms22115731] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 12/24/2022] Open
Abstract
In the fast-developing field of tissue engineering there is a constant demand for new materials as scaffolds for cell seeding, which can better mimic a natural extracellular matrix as well as control cell behavior. Among other materials, polysaccharides are widely used for this purpose. One of the main candidates for scaffold fabrication is alginate. However, it lacks sites for cell adhesion. That is why one of the steps toward the development of suitable scaffolds for cells is the introduction of the biofunctionality to the alginate structure. In this work we focused on bone-sialoprotein derived peptide (TYRAY) conjugation to the molecule of alginate. Here the comparison study on four different approaches of peptide conjugation was performed including traditional and novel modification methods, based on 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide/N-hydroxy succinimide (EDC/NHS), 4-(4,6-dimethoxy-1,3,5-triazine-2-yl)-4-methylmorpholinium chloride (DMTMM), thiol-Michael addition and Cu-catalyzed azide-alkyne cycloaddition reactions. It was shown that the combination of the alginate amidation with the use of and subsequent Cu-catalyzed azide-alkyne cycloaddition led to efficient peptide conjugation, which was proven with both NMR and XPS methods. Moreover, the cell culture experiment proved the positive effect of peptide presence on the adhesion of human embryonic stem cells.
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Affiliation(s)
- Anna Golunova
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky Sq. 2, 16206 Prague, Czech Republic; (N.V.); (Z.M.); (O.P.-G.); (V.P.)
| | - Nadiia Velychkivska
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky Sq. 2, 16206 Prague, Czech Republic; (N.V.); (Z.M.); (O.P.-G.); (V.P.)
| | - Zuzana Mikšovská
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky Sq. 2, 16206 Prague, Czech Republic; (N.V.); (Z.M.); (O.P.-G.); (V.P.)
| | - Václav Chochola
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Kamenice 3, 62500 Brno, Czech Republic; (V.C.); (J.J.); (A.H.)
- Cell and Tissue Regeneration, International Clinical Research Center, St. Anne’s University Hospital Brno, Pekařská 53, 65691 Brno, Czech Republic
| | - Josef Jaroš
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Kamenice 3, 62500 Brno, Czech Republic; (V.C.); (J.J.); (A.H.)
- Cell and Tissue Regeneration, International Clinical Research Center, St. Anne’s University Hospital Brno, Pekařská 53, 65691 Brno, Czech Republic
| | - Aleš Hampl
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Kamenice 3, 62500 Brno, Czech Republic; (V.C.); (J.J.); (A.H.)
- Cell and Tissue Regeneration, International Clinical Research Center, St. Anne’s University Hospital Brno, Pekařská 53, 65691 Brno, Czech Republic
| | - Ognen Pop-Georgievski
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky Sq. 2, 16206 Prague, Czech Republic; (N.V.); (Z.M.); (O.P.-G.); (V.P.)
| | - Vladimír Proks
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky Sq. 2, 16206 Prague, Czech Republic; (N.V.); (Z.M.); (O.P.-G.); (V.P.)
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68
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Röber M, Scheibel T, Börner HG. Toward Activatable Collagen Mimics: Combining DEPSI "Switch" Defects and Template-Guided Self-Organization to Control Collagen Mimetic Peptides. Macromol Biosci 2021; 21:e2100070. [PMID: 34008293 DOI: 10.1002/mabi.202100070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/16/2021] [Indexed: 11/10/2022]
Abstract
Collagen mimetic peptides (CMPs), which imitate various structural or functional features of natural collagen, constitute advanced models illuminating the folding aspects of the collagen triple helix (CTH) motif. In this study, the CMPs of repeating Gly-Pro-Pro (GPP) triplets are tethered to an organic scaffold based on a tris(2-aminoethyl) amine (TREN) derivative (TREN(sucOH)3 ). These three templated peptide strands are further expanded via native chemical ligation to increase the number of GPP triplets and lead to a TREN(sucGPPGPPG(Ψ)SPGPPCPP[GPP]4 )3 construct. The incorporation of an ester switch segment, G(Ψ)S, as a positional O-acyl isopeptide (DEPSI) defect into the peptide strands allows the pH-controlled acceleration of CTH formation. The strand assembly process is monitored by circular dichroism (CD) spectroscopy. The results of pH jump experiments and thermal denaturation studies provide new insights into the contributions of structural DEPSI defects to the template-guided self-assembly of the CTH motif. While the organic scaffold drives the CTH formation, the switch defects act as temporary opponents and slow down the folding. CD spectroscopy data confirm that the switch defects contribute to the formation of a more stable CTH motif by enhancing the structural dynamics at the early stage of the folding process.
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Affiliation(s)
- Matthias Röber
- Laboratory for Organic Synthesis of Functional Systems, Department of Chemistry, Humboldt Universität zu Berlin, Brook-Taylor-Str. 2, Berlin, 12489, Germany
| | - Thomas Scheibel
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Universitätsstraße 30, Bayreuth, D-95440, Germany
| | - Hans G Börner
- Laboratory for Organic Synthesis of Functional Systems, Department of Chemistry, Humboldt Universität zu Berlin, Brook-Taylor-Str. 2, Berlin, 12489, Germany
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69
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Yuan R, Sun H, Yan Z, He H. Rational design and synthesis of a task-specific porous organic framework featured azobenzene as a photoresponsive low-energy CO2 adsorbent. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122049] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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70
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Yan J, Marina PF, Blencowe A. A Facile Strategy for the High Yielding, Quantitative Conversion of Polyglycol End-Groups to Amines. Polymers (Basel) 2021; 13:1403. [PMID: 33926044 PMCID: PMC8123656 DOI: 10.3390/polym13091403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 04/20/2021] [Accepted: 04/22/2021] [Indexed: 11/22/2022] Open
Abstract
Amino end-group functionalised polyglycols are important intermediates in the synthesis of sophisticated polymeric architectures and biomaterials. Herein, we report a facile strategy for the end-group conversion of hydroxyl-terminated polyglycols to amino-terminated polyglycols in high isolated yields and with excellent end-group fidelity. Following traditional conversion of polyglycol hydroxyl end-groups to azides via the corresponding mesylate, reduction with zinc in the presence of ammonium chloride afforded a range of amino end-group functionalised poly(ethylene glycol) and poly(propylene glycol) homopolymers and copolymers with isolated yields of 82-99% and end-group conversions of >99% as determined by NMR spectroscopy and MALDI ToF MS. Furthermore, this process is applicable to a sequential reagent addition approach without intermediate polymer isolation steps with only a slight reduction in yield and end-group conversion (95%). Importantly, a simple work-up procedure provides access to high purity polyglycols without contamination from other reagents.
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Affiliation(s)
- Jie Yan
- Applied Chemistry and Translational Biomaterials (ACTB) Group, Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia
| | - Paula Facal Marina
- Applied Chemistry and Translational Biomaterials (ACTB) Group, Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia
| | - Anton Blencowe
- Applied Chemistry and Translational Biomaterials (ACTB) Group, Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia
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71
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Wu C, Liu X, Ying Y. Soft and Stretchable Optical Waveguide: Light Delivery and Manipulation at Complex Biointerfaces Creating Unique Windows for On-Body Sensing. ACS Sens 2021; 6:1446-1460. [PMID: 33611914 DOI: 10.1021/acssensors.0c02566] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Over the past few decades, optical waveguides have been increasingly used in wearable/implantable devices for on-body sensing. However, conventional optical waveguides are stiff, rigid, and brittle. A mismatch between conventional optical waveguides and complex biointerfaces makes wearable/implantable devices uncomfortable to wear and potentially unsafe. Soft and stretchable polymer optical waveguides not only inherit many advantages of conventional optical waveguides (e.g., immunity to electromagnetic interference and without electrical hazards) but also provide a new perspective for solving the mismatch between conventional optical waveguides and complex biointerfaces, which is essential for the development of light-based wearable/implantable sensors. In this review, polymer optical waveguides' unique properties, including flexibility, biocompatibility and biodegradability, porosity, and stimulus responsiveness, and their applications in the wearable/implantable field in recent years are summarized. Then, we briefly discuss the current challenges of high optical loss, unstable signal transmission, low manufacturing efficiency, and difficulty in deployment during implantation of flexible polymer optical waveguides, and propose some possible solutions to these problems.
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Affiliation(s)
- Chenjian Wu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
| | - Xiangjiang Liu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
- College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Urumqi, 830052, China
| | - Yibin Ying
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
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72
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Tuang S, Dieppa-Matos D, Zhang C, Shugrue CR, Dai P, Loas A, Pentelute BL. A reactive peptide interface for site-selective cysteine bioconjugation. Chem Commun (Camb) 2021; 57:3227-3230. [PMID: 33645592 DOI: 10.1039/d1cc00095k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We report aqueous, site-selective modification of proteins using a reactive peptide interface comprising a nine-residue sequence. This interface is the fastest (second-order rate constant of 152 M-1 s-1) catalyst-free, cysteine-based method for modifying proteins available to date, and enables near-quantitative labeling of antibodies in cell lysate.
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Affiliation(s)
- Suan Tuang
- Massachusetts Institute of Technology, Department of Chemistry, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
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73
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Feng W, Li G, Tao L, Wei Y, Wang X. Poly(amino acid)s-based star AIEgens for cell uptake with pH-response and chiral difference. Colloids Surf B Biointerfaces 2021; 202:111687. [PMID: 33730600 DOI: 10.1016/j.colsurfb.2021.111687] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 03/01/2021] [Accepted: 03/07/2021] [Indexed: 01/04/2023]
Abstract
Chiral aggregation-induced emission luminogens (AIEgens) are the new-generation chiral sensors that regulate chiral signals from the molecular level to the macroscopic assembly. Expanding applications of chiral AIEgens and in-depth understanding of their chiral recognition in biological systems are meaningful. Herein, two star chiral AIEgens, consisting of tetraphenylethene (TPE) as core and poly(N-acryloyl-L(D) valine) (PLV or PDV) as arms, were precisely synthesized via atom transfer radical polymerization (ATRP) technique and named TPE-PLV and TPE-PDV. They possessed typical AIE characteristics and exhibited an increase in concentration-dependent fluorescence intensity. The two AIEgens were pH-responsive and had strong AIE-related emission in acidic solution. Importantly, AIEgens can enter the living cells by ATP dependent endocytosis, then light them up. The interactions between the AIEgens and living human hepatocarcinoma (HepG2) cells revealed that the internalization process of TPE-PLV and TPE-PDV was both chiral-dependent and pH-responsive. This novel strategy for synthesizing poly(amino acid)s functionalized AIEgens could inspire the development of promising fluorescent materials with chirality.
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Affiliation(s)
- Wenli Feng
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Guofeng Li
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Lei Tao
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, PR China
| | - Yen Wei
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, PR China
| | - Xing Wang
- Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, PR China.
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74
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Xu L, Kuan SL, Weil T. Contemporary Approaches for Site‐Selective Dual Functionalization of Proteins. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012034] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Lujuan Xu
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Seah Ling Kuan
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Tanja Weil
- Max Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
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75
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Dubey N, Arora S. Surfactant assisted synthesis of pH responsive polyaniline-cellulose biocomposite for sensor applications. POLYM-PLAST TECH MAT 2021. [DOI: 10.1080/25740881.2021.1888985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Neelima Dubey
- Department of Chemistry, Kurukshetra University, Kurukshetra, India
| | - Sanjiv Arora
- Department of Chemistry, Kurukshetra University, Kurukshetra, India
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76
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Kim T, Nam K, Kim YM, Yang K, Roh YH. DNA-Assisted Smart Nanocarriers: Progress, Challenges, and Opportunities. ACS NANO 2021; 15:1942-1951. [PMID: 33492127 DOI: 10.1021/acsnano.0c08905] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Due to powerful breakthroughs in nanotechnology, smart delivery mechanisms have rapidly emerged for use in diverse applications across biomedical research and therapeutic development. Recent efforts toward understanding stimuli-responsive strategies have led to substantial improvements in their conceptual application and in vitro efficiency. Because disease targets for therapy are often localized in specific cells, organs, or tissues, an enhanced permeability and retention (EPR)-based strategy remains inadequate for accurate drug delivery and release to target regions, resulting in an insufficient drug concentration reaching the target region and undesired side effects. To address these issues, more precise and remote-controlled stimuli-responsive systems, which recognize and react to changes in the pathophysiological microenvironment, were recently elucidated as feasible on-demand drug-delivery systems. In this Perspective, we focus on progress toward stimuli-responsive drug-delivery systems that utilize dynamic DNA molecules by exploiting DNA nanotechnology. DNA structures can be precisely reconfigured by external and internal stimuli to drive the release of a loaded drug in a target region with appropriate microenvironments. We describe the chemical, physical, and biological engineering principles and strategies for constructing DNA-assisted nanocarriers. We also provide a summary of smart nanocarrier systems, organized with respect to the structural changes in the DNA strand in the microenvironment, resulting from changes in pH and temperature and the presence of intracellular oligonucleotides. To do so, we highlight recent advances in related biomedical research and applications as well as discuss major challenges and opportunities for DNA-assisted nanocarriers to guide the development of future in vivo therapies and clinical translation strategies.
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Affiliation(s)
- Taehyung Kim
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Keonwook Nam
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Young Min Kim
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Kyungjik Yang
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Young Hoon Roh
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
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77
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Zhou J, Rao L, Yu G, Cook TR, Chen X, Huang F. Supramolecular cancer nanotheranostics. Chem Soc Rev 2021; 50:2839-2891. [PMID: 33524093 DOI: 10.1039/d0cs00011f] [Citation(s) in RCA: 207] [Impact Index Per Article: 69.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Among the many challenges in medicine, the treatment and cure of cancer remains an outstanding goal given the complexity and diversity of the disease. Nanotheranostics, the integration of therapy and diagnosis in nanoformulations, is the next generation of personalized medicine to meet the challenges in precise cancer diagnosis, rational management and effective therapy, aiming to significantly increase the survival rate and improve the life quality of cancer patients. Different from most conventional platforms with unsatisfactory theranostic capabilities, supramolecular cancer nanotheranostics have unparalleled advantages in early-stage diagnosis and personal therapy, showing promising potential in clinical translations and applications. In this review, we summarize the progress of supramolecular cancer nanotheranostics and provide guidance for designing new targeted supramolecular theranostic agents. Based on extensive state-of-the-art research, our review will provide the existing and new researchers a foundation from which to advance supramolecular cancer nanotheranostics and promote translationally clinical applications.
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Affiliation(s)
- Jiong Zhou
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China.
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78
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Dutta K, Kanjilal P, Das R, Thayumanavan S. Synergistic Interplay of Covalent and Non-Covalent Interactions in Reactive Polymer Nanoassembly Facilitates Intracellular Delivery of Antibodies. Angew Chem Int Ed Engl 2021; 60:1821-1830. [PMID: 33034131 PMCID: PMC7855684 DOI: 10.1002/anie.202010412] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/23/2020] [Indexed: 01/29/2023]
Abstract
The primary impediments in developing large antibodies as drugs against intracellular targets involve their low transfection efficiency and suitable reversible encapsulation strategies for intracellular delivery with retention of biological activity. To address this, we outline an electrostatics-enhanced covalent self-assembly strategy to generate polymer-protein/antibody nanoassemblies. Through structure-activity studies, we down-select the best performing self-immolative pentafluorophenyl containing activated carbonate polymer for bioconjugation. With the help of an electrostatics-aided covalent self-assembly approach, we demonstrate efficient encapsulation of medium to large proteins (HRP, 44 kDa and β-gal, 465 kDa) and antibodies (ca. 150 kDa). The designed polymeric nanoassemblies are shown to successfully traffic functional antibodies (anti-NPC and anti-pAkt) to cytosol to elicit their bioactivity towards binding intracellular protein epitopes and inducing apoptosis.
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Affiliation(s)
| | | | - Ritam Das
- University of Massachusetts, Amherst, MA, 01003, USA
| | - Sankaran Thayumanavan
- Department of Chemistry, Molecular and Cellular Biology Program, and The Center for Bioactive Delivery-Institute for Applied Life Sciences, University of Massachusetts, Amherst, MA, 01003, USA
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79
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Javan Nikkhah S, Thompson D. Molecular Modelling Guided Modulation of Molecular Shape and Charge for Design of Smart Self-Assembled Polymeric Drug Transporters. Pharmaceutics 2021; 13:141. [PMID: 33499130 PMCID: PMC7912381 DOI: 10.3390/pharmaceutics13020141] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/15/2021] [Accepted: 01/18/2021] [Indexed: 12/17/2022] Open
Abstract
Nanomedicine employs molecular materials for prevention and treatment of disease. Recently, smart nanoparticle (NP)-based drug delivery systems were developed for the advanced transport of drug molecules. Rationally engineered organic and inorganic NP platforms hold the promise of improving drug targeting, solubility, prolonged circulation, and tissue penetration. However, despite great progress in the synthesis of NP building blocks, more interdisciplinary research is needed to understand their self-assembly and optimize their performance as smart nanocarriers. Multi-scale modeling and simulations provide a valuable ally to experiment by mapping the potential energy landscape of self-assembly, translocation, and delivery of smart drug-loaded NPs. Here, we highlight key recent advances to illustrate the concepts, methods, and applications of smart polymer-based NP drug delivery. We summarize the key design principles emerging for advanced multifunctional polymer topologies, illustrating how the unusual architecture and chemistry of dendritic polymers, self-assembling polyelectrolytes and cyclic polymers can provide exceptional drug delivery platforms. We provide a roadmap outlining the opportunities and challenges for the effective use of predictive multiscale molecular modeling techniques to accelerate the development of smart polymer-based drug delivery systems.
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Affiliation(s)
- Sousa Javan Nikkhah
- Department of Physics, Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland;
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80
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Das S, Ngashangva L, Goswami P. Carbon Dots: An Emerging Smart Material for Analytical Applications. MICROMACHINES 2021; 12:84. [PMID: 33467583 PMCID: PMC7829846 DOI: 10.3390/mi12010084] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/09/2021] [Accepted: 01/12/2021] [Indexed: 12/16/2022]
Abstract
Carbon dots (CDs) are optically active carbon-based nanomaterials. These nanomaterials can change their light emission properties in response to various external stimuli such as pH, temperature, pressure, and light. The CD's remarkable stimuli-responsive smart material properties have recently stimulated massive research interest for their exploitation to develop various sensor platforms. Herein, an effort has been made to review the major advances made on CDs, focusing mainly on its smart material attributes and linked applications. Since the CD's material properties are largely linked to their synthesis approaches, various synthesis methods, including surface passivation and functionalization of CDs and the mechanisms reported so far in their photophysical properties, are also delineated in this review. Finally, the challenges of using CDs and the scope for their further improvement as an optical signal transducer to expand their application horizon for developing analytical platforms have been discussed.
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Affiliation(s)
| | | | - Pranab Goswami
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India; (S.D.); (L.N.)
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81
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Rahman MS, Brown J, Murphy R, Carnes S, Carey B, Averick S, Konkolewicz D, Page RC. Polymer Modification of Lipases, Substrate Interactions, and Potential Inhibition. Biomacromolecules 2021; 22:309-318. [PMID: 33416313 DOI: 10.1021/acs.biomac.0c01159] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An industrially important enzyme, Candida antarctica lipase B (CalB), was modified with a range of functional polymers including hydrophilic, hydrophobic, anionic, and cationic character using a "grafting to" approach. We determined the impact of polymer chain length on CalB activity by synthesizing biohybrids of CalB with each polymer at three different chain lengths, using reversible addition-fragmentation chain transfer (RAFT) polymerization. The activity of CalB in both aqueous and aqueous-organic media mixtures was significantly enhanced for acrylamide (Am) and N,N-dimethyl acrylamide (DMAm) conjugates, with activity remaining approximately constant in 25 and 50% ethanol solvent systems. Interestingly, the activity of N,N-dimethylaminopropyl-acrylamide (DMAPA) conjugates increased gradually with increasing organic solvent content in the system. Contrary to other literature reports, our study showed significantly diminished activity for hydrophobic polymer-protein conjugates. Functional thermal stability assays also displayed a considerable enhancement of retained activity of Am, DMAm, and DMAPA conjugates compared to the native CalB enzyme. Thus, this study provides an insight into possible advances in lipase production, which can lead to new improved lipase bioconjugates with increased activity and stability.
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Affiliation(s)
- Monica Sharfin Rahman
- Department of Chemistry and Biochemistry, Miami University, 651 E High St., Oxford, Ohio 45056, United States
| | - Julian Brown
- Department of Chemistry and Biochemistry, Miami University, 651 E High St., Oxford, Ohio 45056, United States
| | - Reena Murphy
- Department of Chemistry and Biochemistry, Miami University, 651 E High St., Oxford, Ohio 45056, United States
| | - Sydney Carnes
- Department of Chemistry and Biochemistry, Miami University, 651 E High St., Oxford, Ohio 45056, United States
| | - Ben Carey
- Department of Chemistry and Biochemistry, Miami University, 651 E High St., Oxford, Ohio 45056, United States
| | - Saadyah Averick
- Neuroscience Institute, Allegheny Health Network, Allegheny General Hospital, Pittsburgh, Pennsylvania 15212, United States
| | - Dominik Konkolewicz
- Department of Chemistry and Biochemistry, Miami University, 651 E High St., Oxford, Ohio 45056, United States
| | - Richard C Page
- Department of Chemistry and Biochemistry, Miami University, 651 E High St., Oxford, Ohio 45056, United States
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82
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Russo D, Garvey CJ, Wurm FR, Teixeira J. Conformation of Myoglobin-Poly(Ethyl Ethylene Phosphate) Conjugates Probed by SANS: Correlation with Polymer Grafting Density and Interaction. Macromol Biosci 2021; 21:e2000356. [PMID: 33393176 DOI: 10.1002/mabi.202000356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 12/01/2020] [Indexed: 01/07/2023]
Abstract
One can take advantage of the influence of a polymer conjugated with a protein to control the thermal stability and the deployment of the protein. Here, the structural properties are reported of the protein-polymer conjugate myoglobin (Mb)-poly(ethyl ethylene phosphate) (PEEP) in the native and unfolded conformations, in order to understand the respective roles of the protein and of the polymer size in the stability of the conjugate. The effect is also investigated of the grafting density of the linear biodegradable polyphosphoesters covalently attached to the protein. It is observed that, while the conjugation process at room temperature does not modify the secondary and tertiary structure of the Mb, the unfolding process, as a function of temperature, depends on the grafting density. Small angle neutron scattering reveals that, at room temperature, conjugation does not alter the size of the native protein and that the thickness of the polymer shell around the protein increases as a function of grafting density and of polymer molecular weight. The denatured form of all conjugates is described by an unfolded chain and a correlation length due to the presence of local stiffness.
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Affiliation(s)
- Daniela Russo
- Consiglio Nazionale delle Ricerche & Istituto Officina dei Materiali c/o Institut Laue Langevin, Grenoble, 38042, France.,Australian Nuclear Science and Technology Organization, New Illawarra Road, Lucas Heights, NSW, 2234, Australia
| | - Christopher J Garvey
- Australian Nuclear Science and Technology Organization, New Illawarra Road, Lucas Heights, NSW, 2234, Australia.,Lund Institute for Advanced Neutron and X-ray Science, Lund, 20503, Sweden.,Biofilm-Research Center for Biointerfaces and Biomedical Science Department, Faculty of Health and Society, Malmö University, Malmö, Sweden
| | - Frederick R Wurm
- Max-Planck-Institut für Polymerforschung, Ackermannweg 10, Mainz, 55128, Germany
| | - José Teixeira
- Laboratoire Léon Brillouin (CEA/CNRS), CEA Saclay, Gif-sur-Yvette, Cedex, 91191, France
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83
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Theodorou A, Mandriotis P, Anastasaki A, Velonia K. Oxygen tolerant, photoinduced controlled radical polymerization approach for the synthesis of giant amphiphiles. Polym Chem 2021. [DOI: 10.1039/d0py01608j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
New families of amphiphilic protein–polymer bioconjugates readily synthesized via an oxygen tolerant, photoinduced RDRP approach.
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Affiliation(s)
- Alexis Theodorou
- Laboratory of Synthetic Biomaterials
- Department of Materials Science and Technology
- University of Crete
- 70013 Heraklion
- Greece
| | - Petros Mandriotis
- Laboratory of Synthetic Biomaterials
- Department of Materials Science and Technology
- University of Crete
- 70013 Heraklion
- Greece
| | - Athina Anastasaki
- Laboratory of Polymeric Materials
- Department of Materials
- ETH Zurich
- 8093 Zurich
- Switzerland
| | - Kelly Velonia
- Laboratory of Synthetic Biomaterials
- Department of Materials Science and Technology
- University of Crete
- 70013 Heraklion
- Greece
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84
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Bravo-Anaya LM, Rosselgong J, Fernández-Solís KG, Xiao Y, Vax A, Ibarboure E, Ruban A, Lebleu C, Joucla G, Garbay B, Garanger E, Lecommandoux S. Coupling of RAFT polymerization and chemoselective post-modifications of elastin-like polypeptides for the synthesis of gene delivery hybrid vectors. Polym Chem 2021. [DOI: 10.1039/d0py01293a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Hybrid cationic ELPs for nucleic acids transport and delivery were synthetized through the coupling of RAFT polymerization and biorthogonal chemistry of ELPs, introducing a specific number of positive charges to the ELP backbone.
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Affiliation(s)
| | | | | | - Ye Xiao
- University of Bordeaux
- CNRS
- Bordeaux INP
- Pessac
- France
| | - Amélie Vax
- University of Bordeaux
- CNRS
- Bordeaux INP
- Pessac
- France
| | | | - Anna Ruban
- University of Bordeaux
- CNRS
- Bordeaux INP
- Pessac
- France
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85
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Verduzco L, García-Pérez AL, Guerrero-Santos R, Ledezma-Pérez A, Romero-García J, Torres-Lubián JR. Bioconjugation of papain with poly( N-vinylpyrrolidone): NMR characterization and study of its enzymatic activity. CAN J CHEM 2021. [DOI: 10.1139/cjc-2020-0181] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A poly(vinylpyrrolidone) end-functionalized with a carboxylic acid group (PVP–CO2H) was synthesized by reversible addition-fragmentation chain transfer (RAFT)/macromolecular design via the interchange of xanthates (MADIX) polymerization mediated by 4-(O-ethylxanthyl)methyl benzoic acid. The molecular weight of the as-synthesized PVP–CO2H was estimated through UV–vis spectroscopy (Mn(UV–vis) = 7322 g/mol), gel permeation chromatography (GPC) (Mn(GPC) = 8670 g/mol), and 1H NMR, (Mn(NMR) = 8207 g/mol). The values obtained were close with the theoretical molecular weight (Mn(th) = 7925 g/mol). Subsequently, the preformed PVP–CO2H was activated to produce N-succinimidyl poly(vinylpyrrolidone) (PVP–NHS). This precursor was covalently coupled to papain to produce bioconjugate PVP–papain. The functional group modifications in the PVP chain-end were observed by the variations in the chemical shift values by 1H and 13C NMR and FTIR analysis at each step of the synthesis. The molecular weight of the PVP–papain was obtained by SEC–HPLC and suggests that, on average, four or five chains of PVP–CO2H were attached to one papain molecule. Compared with papain, the PVP–papain exhibited significantly improved catalytic activity, pH, and thermal stability. Additionally, the storage studies showed that the catalytic activity of PVP–papain was about 79% versus the native enzyme (29%), and this activity was maintained even when it was stored for 25 days.
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Affiliation(s)
- L.E. Verduzco
- Departamento de Materiales Avanzados, Centro de Investigación en Quimica Aplicada, Blvd. Enrique Reyna 140, Col. San José de los Cerritos, 25294 Saltillo, Coah., Mexico
- Departamento de Síntesis de Polímeros, Centro de Investigación en Quimica Aplicada, Blvd. Enrique Reyna 140, Col. San José de los Cerritos, 25294 Saltillo, Coah., Mexico
| | - Ana L. García-Pérez
- Departamento de Materiales Avanzados, Centro de Investigación en Quimica Aplicada, Blvd. Enrique Reyna 140, Col. San José de los Cerritos, 25294 Saltillo, Coah., Mexico
- Departamento de Síntesis de Polímeros, Centro de Investigación en Quimica Aplicada, Blvd. Enrique Reyna 140, Col. San José de los Cerritos, 25294 Saltillo, Coah., Mexico
| | - Ramiro Guerrero-Santos
- Departamento de Síntesis de Polímeros, Centro de Investigación en Quimica Aplicada, Blvd. Enrique Reyna 140, Col. San José de los Cerritos, 25294 Saltillo, Coah., Mexico
| | - Antonio Ledezma-Pérez
- Departamento de Materiales Avanzados, Centro de Investigación en Quimica Aplicada, Blvd. Enrique Reyna 140, Col. San José de los Cerritos, 25294 Saltillo, Coah., Mexico
| | - Jorge Romero-García
- Departamento de Materiales Avanzados, Centro de Investigación en Quimica Aplicada, Blvd. Enrique Reyna 140, Col. San José de los Cerritos, 25294 Saltillo, Coah., Mexico
| | - José R. Torres-Lubián
- Departamento de Síntesis de Polímeros, Centro de Investigación en Quimica Aplicada, Blvd. Enrique Reyna 140, Col. San José de los Cerritos, 25294 Saltillo, Coah., Mexico
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86
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Tan J, Hu J, Liu S. Designing self-propagating polymers with ultrasensitivity through feedback signal amplification. Polym Chem 2021. [DOI: 10.1039/d1py01095f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Stimuli-responsive polymers with self-propagating degradation capacity being sensitive to acids, bases, fluoride ions, and hydrogen peroxide are reviewed, exhibiting self-accelerated degradation behavior.
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Affiliation(s)
- Jiajia Tan
- Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jinming Hu
- Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shiyong Liu
- Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
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87
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Abstract
The preparation and applications of DNA containing polymers are comprehensively reviewed, and they are in the form of DNA−polymer covalent conjugators, supramolecular assemblies and hydrogels for advanced materials with promising features.
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Affiliation(s)
- Zeqi Min
- School of Materials Science & Engineering
- Department of Polymer Materials
- Shanghai University
- Shanghai 200444
- China
| | - Biyi Xu
- School of Materials Science & Engineering
- Department of Polymer Materials
- Shanghai University
- Shanghai 200444
- China
| | - Wen Li
- School of Materials Science & Engineering
- Department of Polymer Materials
- Shanghai University
- Shanghai 200444
- China
| | - Afang Zhang
- School of Materials Science & Engineering
- Department of Polymer Materials
- Shanghai University
- Shanghai 200444
- China
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88
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Kholodkov DN, Eremchuk KI, Soldatkin YV, Volodin AD, Korlyukov AA, Anisimov AA, Novikov RA, Arzumanyan AV. Stereoregular cyclic p-tolyl-siloxanes with alkyl, O- and N-containing groups as promising reagents for the synthesis of functionalized organosiloxanes. NEW J CHEM 2021. [DOI: 10.1039/d1nj01222c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Preparation methodology for a series of hydrophobic and amphiphilic well-defined stereoregular cyclic p-tolyl-substituted siloxanes has been proposed.
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Affiliation(s)
- Dmitry N. Kholodkov
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- 28 Vavilov Street
- Moscow 119991
- Russian Federation
| | - Kseniia I. Eremchuk
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- 28 Vavilov Street
- Moscow 119991
- Russian Federation
| | - Yuri V. Soldatkin
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- 28 Vavilov Street
- Moscow 119991
- Russian Federation
| | - Alexander D. Volodin
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- 28 Vavilov Street
- Moscow 119991
- Russian Federation
| | - Alexander A. Korlyukov
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- 28 Vavilov Street
- Moscow 119991
- Russian Federation
| | - Anton A. Anisimov
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- 28 Vavilov Street
- Moscow 119991
- Russian Federation
| | - Roman A. Novikov
- Zelinsky Institute of Organic Chemistry
- Russian Academy of Sciences
- 47 Leninsky Pr
- Moscow 119991
- Russian Federation
| | - Ashot V. Arzumanyan
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- 28 Vavilov Street
- Moscow 119991
- Russian Federation
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89
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Goncharova IK, Tukhvatshin RS, Kholodkov DN, Novikov RA, Solodilov VI, Arzumanyan AV. Dumbbell-Shaped, Graft and Bottlebrush Polymers with All-Siloxane Nature: Synthetic Methodology, Thermal, and Rheological Behavior. Macromol Rapid Commun 2020; 42:e2000645. [PMID: 33345394 DOI: 10.1002/marc.202000645] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/04/2020] [Indexed: 12/14/2022]
Abstract
A methodology for synthesizing a wide range of dumbbell-shaped, graft and bottlebrush polymers with all-siloxane nature (without carbosilane linkers) is suggested. These macroarchitectures are synthesized from SiOH-containing compounds-silanol (Et3 SiOH) and siloxanol dendrons of the first and second generations, with various peripheral substituents (Me or Et)-and from linear siloxanes comprising terminal and internal SiH groups by the Piers-Rubinsztajn reaction. Products and key building blocks are obtained in yields up to 95%. These polymers are heat and frost-resistant siloxanes. As it turns out, the product physical properties are determined not only by the macromolecular structure, the linear chain length, the size and frequency of branched pendant, but also by the type of peripheral substituents-Me or Et-in the pendant. Thus, the viscosity of the graft polymers with branched pendant groups comprising peripheral Me-groups is more than ≈3-5 fold lower than that of analogous polymers with peripheral Et-groups.
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Affiliation(s)
- Irina K Goncharova
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, Moscow, 119991, Russian Federation
| | - Rinat S Tukhvatshin
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, Moscow, 119991, Russian Federation
| | - Dmitry N Kholodkov
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, Moscow, 119991, Russian Federation
| | - Roman A Novikov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Pr., Moscow, 119991, Russian Federation
| | - Vitaliy I Solodilov
- Semenov Federal Research Center For Chemical Physics Russian Academy of Sciences, 4 Kosygin Street, Moscow, 119991, Russian Federation
| | - Ashot V Arzumanyan
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, Moscow, 119991, Russian Federation
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90
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91
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He L, Xiao Q, Zhao Y, Li J, Reddy S, Shi X, Su X, Chiu K, Ramakrishna S. Engineering an Injectable Electroactive Nanohybrid Hydrogel for Boosting Peripheral Nerve Growth and Myelination in Combination with Electrical Stimulation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:53150-53163. [PMID: 33179500 DOI: 10.1021/acsami.0c16885] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Electrical stimulation (ES) can be used to manipulate recovery after peripheral nerve injuries. Although biomaterial-based strategies have already been implemented to gain momentum for ES and engineer permissive microenvironments for neural regeneration, the development of biomaterials for specific stimuli-responsive modulation of neural cell properties remains a challenge. Herein, we homogeneously incorporate pristine carbon nanotubes into a functional self-assembling peptide to prepare a hybrid hydrogel with good injectability and conductivity. Two-dimensional (on the surface) and three-dimensional (within the hybrid hydrogel) culturing experiments demonstrate that ES promotes axon outgrowth and Schwann cell (SC) migration away from dorsal root ganglia spheres, further revealing that ES-enhanced interactions between SCs and axons result in improved myelination. Thus, our study not only advances the development of tailor-made materials but also provides useful insights into comprehensive approaches for promoting nerve growth and presents a practical strategy of repairing peripheral nerve injuries.
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Affiliation(s)
- Liumin He
- Department of Spine Surgery, The 3rd Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510630, China
- MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China
| | - Qiao Xiao
- MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China
| | - Yuyuan Zhao
- MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China
| | - Jun Li
- MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China
| | - Sathish Reddy
- MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China
| | - Xueshuang Shi
- MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China
| | - Xin Su
- MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China
| | - Kin Chiu
- Department of Ophthalmology, Faculty of Medicine, The University of Hong Kong, Hongkong, China
| | - Seeram Ramakrishna
- MOE Joint International Research Laboratory of CNS Regeneration, Jinan University, Guangzhou 510632, China
- Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, Singapore 117576, Singapore
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92
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Dutta K, Kanjilal P, Das R, Thayumanavan S. Synergistic Interplay of Covalent and Non‐Covalent Interactions in Reactive Polymer Nanoassembly Facilitates Intracellular Delivery of Antibodies. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010412] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | - Ritam Das
- University of Massachusetts Amherst MA 01003 USA
| | - Sankaran Thayumanavan
- Department of Chemistry, Molecular and Cellular Biology Program, and The Center for Bioactive Delivery-Institute for Applied Life Sciences University of Massachusetts Amherst MA 01003 USA
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93
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Swierczynski MJ, Ball ZT. One-Step Protein-Polymer Conjugates from Boronic-Acid-Functionalized Polymers. Bioconjug Chem 2020; 31:2494-2498. [PMID: 33078937 DOI: 10.1021/acs.bioconjchem.0c00516] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Polymer-protein conjugates are hybrid materials with interesting and useful properties. Methods to prepare diverse diblock materials of this sort often struggle to deal with the complexity and size of reagents, and so polymer-protein conjugation represents a stringent testing ground for nontraditional bioconjugation methods, such as metal-catalyzed arylation. This work demonstrates a simple Ni2+-promoted arylation of cysteine residues with end-functionalized polymer-boronic acid reagents, and explores some molecular and physical properties possible in these hybrid structures.
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Affiliation(s)
- Michael J Swierczynski
- Department of Chemistry, Rice University, 6100 Main Street, Bioscience Research Collaborative, Houston, Texas 77005, United States
| | - Zachary T Ball
- Department of Chemistry, Rice University, 6100 Main Street, Bioscience Research Collaborative, Houston, Texas 77005, United States
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94
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Han K, Bailey JB, Zhang L, Tezcan FA. Anisotropic Dynamics and Mechanics of Macromolecular Crystals Containing Lattice-Patterned Polymer Networks. J Am Chem Soc 2020; 142:19402-19410. [PMID: 33124805 DOI: 10.1021/jacs.0c10065] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The mechanical and functional properties of many crystalline materials depend on cooperative changes in lattice arrangements in response to external perturbations. However, the flexibility and adaptiveness of crystalline materials are limited. Additionally, the bottom-up, molecular-level design of crystals with desired dynamic and mechanical properties at the macroscopic level remains a considerable challenge. To address these challenges, we had previously integrated mesoporous, cubic ferritin crystals with hydrogel networks, resulting in hybrid materials (polymer-integrated crystals or PIX) which could undergo dramatic structural changes while maintaining crystalline periodicity and display efficient self-healing. The dynamics and mechanics of these ferritin-PIX were devoid of directionality, which is an important attribute of many molecular and macroscopic materials/devices. In this study, we report that such directionality can be achieved through the use of ferritin crystals with anisotropic symmetries (rhombohedral or trigonal), which enable the templated formation of patterned hydrogel networks in crystallo. The resulting PIX expand and contract anisotropically without losing crystallinity, undergo prompt bending motions in response to stimuli, and self-heal efficiently, capturing some of the essential features of sophisticated biological devices like skeletal muscles.
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Affiliation(s)
- Kenneth Han
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Jake B Bailey
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Ling Zhang
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - F Akif Tezcan
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States.,Materials Science and Engineering, University of California, San Diego, La Jolla, California 92093, United States
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95
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Rucco DJ, Barnes BE, Garrison JB, Sumerlin BS, Savin DA. Modular Genetic Code Expansion Platform and PISA Yield Well-Defined Protein-Polymer Assemblies. Biomacromolecules 2020; 21:5077-5085. [DOI: 10.1021/acs.biomac.0c01225] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Dominic J. Rucco
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Brooke E. Barnes
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - John B. Garrison
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Daniel A. Savin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
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96
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Beloqui A, Mane SR, Langer M, Glassner M, Bauer DM, Fruk L, Barner‐Kowollik C, Delaittre G. Hetero‐Diels‐Alder‐Cycloaddition mit RAFT‐Polymeren als Biokonjugationsplattform. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ana Beloqui
- Institute of Biological and Chemical Systems (IBCS) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
- Macromolecular Architectures Institute for Chemical Technology and Polymer Chemistry (ITCP) Karlsruhe Institute of Technology (KIT) Engesserstr. 18 76131 Karlsruhe Deutschland
- Department of Applied Chemistry (UPV/EHU) Avda. Manuel de Lardizabal 3 E-20018 Donostia – San Sebastian Spanien
- IKERBASQUE Basque Foundation for Science Maria Diaz de Haro 3 E-48013 Bilbao Spanien
| | - Shivshankar R. Mane
- Institute of Biological and Chemical Systems (IBCS) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
- Macromolecular Architectures Institute for Chemical Technology and Polymer Chemistry (ITCP) Karlsruhe Institute of Technology (KIT) Engesserstr. 18 76131 Karlsruhe Deutschland
| | - Marcel Langer
- Macromolecular Architectures Institute for Chemical Technology and Polymer Chemistry (ITCP) Karlsruhe Institute of Technology (KIT) Engesserstr. 18 76131 Karlsruhe Deutschland
| | - Mathias Glassner
- Macromolecular Architectures Institute for Chemical Technology and Polymer Chemistry (ITCP) Karlsruhe Institute of Technology (KIT) Engesserstr. 18 76131 Karlsruhe Deutschland
| | - Dennis M. Bauer
- Center for Functional Nanostructures (CFN) Karlsruhe Institute of Technology (KIT) Wolfgang-Gaede-Straße 1a 76131 Karlsruhe Deutschland
| | - Ljiljana Fruk
- Center for Functional Nanostructures (CFN) Karlsruhe Institute of Technology (KIT) Wolfgang-Gaede-Straße 1a 76131 Karlsruhe Deutschland
- Department of Chemical Engineering and Biotechnology University of Cambridge West Cambridge Site, Philippa Fawcett Drive Cambridge CB3 0AS UK
| | - Christopher Barner‐Kowollik
- Macromolecular Architectures Institute for Chemical Technology and Polymer Chemistry (ITCP) Karlsruhe Institute of Technology (KIT) Engesserstr. 18 76131 Karlsruhe Deutschland
- Centre for Materials Science Queensland University of Technology (QUT) 2 George Street Brisbane QLD 4000 Australien
- School of Chemistry and Physics Queensland University of Technology (QUT) 2 George Street Brisbane QLD 4000 Australien
| | - Guillaume Delaittre
- Institute of Biological and Chemical Systems (IBCS) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Deutschland
- Macromolecular Architectures Institute for Chemical Technology and Polymer Chemistry (ITCP) Karlsruhe Institute of Technology (KIT) Engesserstr. 18 76131 Karlsruhe Deutschland
- Organic Functional Molecules Organic Chemistry University of Wuppertal Gaußstrasse 20 42119 Wuppertal Deutschland
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97
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Beloqui A, Mane SR, Langer M, Glassner M, Bauer DM, Fruk L, Barner‐Kowollik C, Delaittre G. Hetero-Diels-Alder Cycloaddition with RAFT Polymers as Bioconjugation Platform. Angew Chem Int Ed Engl 2020; 59:19951-19955. [PMID: 32729643 PMCID: PMC7693046 DOI: 10.1002/anie.202005747] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Indexed: 12/16/2022]
Abstract
We introduce the bioconjugation of polymers synthesized by RAFT polymerization, bearing no specific functional end group, by means of hetero-Diels-Alder cycloaddition through their inherent terminal thiocarbonylthio moiety with a diene-modified model protein. Quantitative conjugation occurs over the course of a few hours, at ambient temperature and neutral pH, and in the absence of any catalyst. Our technology platform affords thermoresponsive bioconjugates, whose aggregation is solely controlled by the polymer chains.
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Affiliation(s)
- Ana Beloqui
- Institute of Biological and Chemical Systems (IBCS)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
- Macromolecular ArchitecturesInstitute for Chemical Technology and Polymer Chemistry (ITCP)Karlsruhe Institute of Technology (KIT)Engesserstr. 1876131KarlsruheGermany
- Department of Applied Chemistry (UPV/EHU)Avda. Manuel de Lardizabal 3E-20018Donostia – San SebastianSpain
- IKERBASQUEBasque Foundation for ScienceMaria Diaz de Haro 3E-48013BilbaoSpain
| | - Shivshankar R. Mane
- Institute of Biological and Chemical Systems (IBCS)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
- Macromolecular ArchitecturesInstitute for Chemical Technology and Polymer Chemistry (ITCP)Karlsruhe Institute of Technology (KIT)Engesserstr. 1876131KarlsruheGermany
| | - Marcel Langer
- Macromolecular ArchitecturesInstitute for Chemical Technology and Polymer Chemistry (ITCP)Karlsruhe Institute of Technology (KIT)Engesserstr. 1876131KarlsruheGermany
| | - Mathias Glassner
- Macromolecular ArchitecturesInstitute for Chemical Technology and Polymer Chemistry (ITCP)Karlsruhe Institute of Technology (KIT)Engesserstr. 1876131KarlsruheGermany
| | - Dennis M. Bauer
- Center for Functional Nanostructures (CFN)Karlsruhe Institute of Technology (KIT)Wolfgang-Gaede-Straße 1a76131KarlsruheGermany
| | - Ljiljana Fruk
- Center for Functional Nanostructures (CFN)Karlsruhe Institute of Technology (KIT)Wolfgang-Gaede-Straße 1a76131KarlsruheGermany
- Department of Chemical Engineering and BiotechnologyUniversity of CambridgeWest Cambridge Site, Philippa Fawcett DriveCambridgeCB3 0ASUK
| | - Christopher Barner‐Kowollik
- Macromolecular ArchitecturesInstitute for Chemical Technology and Polymer Chemistry (ITCP)Karlsruhe Institute of Technology (KIT)Engesserstr. 1876131KarlsruheGermany
- Centre for Materials ScienceQueensland University of Technology (QUT)2 George StreetBrisbaneQLD4000Australia
- School of Chemistry and PhysicsQueensland University of Technology (QUT)2 George StreetBrisbaneQLD4000Australia
| | - Guillaume Delaittre
- Institute of Biological and Chemical Systems (IBCS)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
- Macromolecular ArchitecturesInstitute for Chemical Technology and Polymer Chemistry (ITCP)Karlsruhe Institute of Technology (KIT)Engesserstr. 1876131KarlsruheGermany
- Organic Functional MoleculesOrganic ChemistryUniversity of WuppertalGaußstrasse 2042119WuppertalGermany
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98
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Joshi S, Yip YJ, Türel T, Verma S, Valiyaveettil S. Cu-tetracatechol metallopolymer catalyst for three component click reactions and β-borylation of α,β-unsaturated carbonyl compounds. Chem Commun (Camb) 2020; 56:13044-13047. [PMID: 33001077 DOI: 10.1039/d0cc05823h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Phenol-metal coordination polymers are used in applications such as catalysis, sensing and separation science. In addition, combining eco-friendly conditions with economical and handling advantages of the polymeric catalyst is of interest to the community. Here, we report a simple one pot synthesis of a tetracatechol based ligand and its coordination polymer with copper ions. The Cu polymer showed electrochemical potential with a band gap of 1.01 eV. The BET surface area of the metallopolymer was 91.19 m2 g-1 with 0.14 cm3 g-1 pore volume. The polymer catalyst was used in a one pot three component click reaction and in the borylation of unsaturated carbonyl compounds with a maximum 99% conversion in water and good turnover efficiency even after 4 repetitive catalysis cycles. The polymer catalyst offers several advantages such as high activity, easy handling, scalability, recyclability and cost effectiveness.
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Affiliation(s)
- Saurabh Joshi
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore. and Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India.
| | - Yong Jie Yip
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
| | - Tankut Türel
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
| | - Sandeep Verma
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India.
| | - Suresh Valiyaveettil
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
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99
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Preparation and properties of thermo- and pH-responsive polypeptide bearing OEG and aldehyde pendants. Colloid Polym Sci 2020. [DOI: 10.1007/s00396-020-04712-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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100
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Hijazi M, Türkmen E, Tiller JC. Full Thermal Switching of Enzymes by Thermoresponsive Poly(2-oxazoline)-Based Enzyme Inhibitors. Chemistry 2020; 26:13367-13371. [PMID: 32706128 PMCID: PMC7702056 DOI: 10.1002/chem.202001909] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 07/22/2020] [Indexed: 11/08/2022]
Abstract
Controlling the activity of enzymes is an important feature for many processes in medicine, bioanalytics, and biotechnology. So far, it has not been possible to fully switch biocatalysts on and off by thermoresponsive enzyme inhibitors. Herein, we present poly(2-oxazoline)s with iminodiacetic acid end groups (POx-IDA) that are lower critical solution temperature (LCST) polymers and thus thermosensitive. They are capable of reversibly inhibiting the activity of horse radish peroxidase and laccase by more than 99 %. Increasing the temperature makes the POx-IDA precipitate, which leads to 100 % recovery of the enzyme activity. This switching cycle is fully reversible. The LCST of the POx-IDA can be tuned by varying the polymer composition to generate a wide range of switching windows.
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Affiliation(s)
- Montasser Hijazi
- Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Str. 66, 44227, Dortmund, Germany
| | - Esra Türkmen
- Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Str. 66, 44227, Dortmund, Germany
| | - Joerg C Tiller
- Department of Bio- and Chemical Engineering, TU Dortmund, Emil-Figge-Str. 66, 44227, Dortmund, Germany
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