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Ding F, Ma Y, Fan W, Xu J, Pan G. Tailor-made molecular imprints for biological event intervention. Trends Biotechnol 2024; 42:1097-1111. [PMID: 38604879 DOI: 10.1016/j.tibtech.2024.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 02/28/2024] [Accepted: 02/28/2024] [Indexed: 04/13/2024]
Abstract
Molecular imprints, which are crosslinked architectures containing specific molecular recognition cavities for targeting compounds, have recently transitioned from in vitro diagnosis to in vivo treatment. In current application scenarios, it has become an important topic to create new biomolecular recognition pathways through molecular imprinting, thereby inhibiting the pathogenesis and regulating the development of diseases. This review starts with a pathological analysis, mainly focusing on the corresponding artificial enzymes, enzyme inhibitors and antibody mimics with enhanced functions that are created by molecular imprinting strategies. Recent advances are highlighted in the use of molecular imprints as tailor-made nanomedicines for the prevention of three major diseases: metabolic syndrome, cancer, and bacterial/viral infections.
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Affiliation(s)
- Fan Ding
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yue Ma
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
| | - Wensi Fan
- Department of Critical Care Medicine, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Jingjing Xu
- Department of Critical Care Medicine, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China.
| | - Guoqing Pan
- Institute for Advanced Materials, School of Materials Science and Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
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2
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Chen T, Lu Y, Xiong X, Qiu M, Peng Y, Xu Z. Hydrolytic nanozymes: Preparation, properties, and applications. Adv Colloid Interface Sci 2024; 323:103072. [PMID: 38159448 DOI: 10.1016/j.cis.2023.103072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/11/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024]
Abstract
Hydrolytic nanozymes, as promising alternatives to hydrolytic enzymes, can efficiently catalyze the hydrolysis reactions and overcome the operating window limitations of natural enzymes. Moreover, they exhibit several merits such as relatively low cost, easier recovery and reuse, improved operating stability, and adjustable catalytic properties. Consequently, they have found relevance in practical applications such as organic synthesis, chemical weapon degradation, and biosensing. In this review, we highlight recent works addressing the broad topic of the development of hydrolytic nanozymes. We review the preparation, properties, and applications of six types of hydrolytic nanozymes, including AuNP-based nanozymes, polymeric nanozymes, surfactant assemblies, peptide assemblies, metal and metal oxide nanoparticles, and MOFs. Last, we discuss the remaining challenges and future directions. This review will stimulate the development and application of hydrolytic nanozymes.
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Affiliation(s)
- Tianyou Chen
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.
| | - Yizhuo Lu
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Xiaorong Xiong
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Meishuang Qiu
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Yan Peng
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Zushun Xu
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, China.
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3
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Ahmed N, Ahmed N, Bilodeau DA, Pezacki JP. An unnatural enzyme with endonuclease activity towards small non-coding RNAs. Nat Commun 2023; 14:3777. [PMID: 37355703 PMCID: PMC10290691 DOI: 10.1038/s41467-023-39105-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 05/25/2023] [Indexed: 06/26/2023] Open
Abstract
Endonucleases are enzymes that cleave internal phosphodiester bonds within double-stranded DNA or RNA and are essential for biological functions. Herein, we use genetic code expansion to create an unnatural endonuclease that cleaves non-coding RNAs including short interfering RNA (siRNA) and microRNAs (miRNAs), a function that does not exist in nature. We introduce a metal-chelating unnatural amino acid, (2,2'-bipyridin-5-yl)alanine (BpyAla) to impart endonuclease activity to the viral suppressor of RNA silencing protein p19. Upon binding of copper, the mutant p19-T111BpyAla displays catalytic site-specific cleavage of siRNA and human miRNAs. Catalysis is confirmed using fluorescence polarization and fluorescence turn-on. Global miRNA profiling reveals that the engineered enzyme cleaves miRNAs in a human cell line. The therapeutic potential is demonstrated by targeting miR-122, a critical host factor for the hepatitis C virus (HCV). Unnatural endonuclease function is shown to deplete miR-122 levels with similar effects to an antagomir that reduces HCV levels therapeutically.
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Affiliation(s)
- Noreen Ahmed
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada
| | - Nadine Ahmed
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada
| | - Didier A Bilodeau
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada
| | - John Paul Pezacki
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada.
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4
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Lorenzetto T, Fabris F, Scarso A. Recent metallosurfactants for sustainable catalysis in water. Curr Opin Colloid Interface Sci 2023. [DOI: 10.1016/j.cocis.2023.101689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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5
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Arifuzzaman MD, Zhao Y. Selective Hydrolysis of Nonactivated Aryl Esters at pH 7 through Cooperative Catalysis. J Org Chem 2023; 88:3282-3287. [PMID: 36795622 PMCID: PMC10183976 DOI: 10.1021/acs.joc.2c02570] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Most reported artificial esterases only hydrolyze highly activated substrates. We here report synthetic catalysts that hydrolyze nonactivated aryl esters at pH 7, via cooperative action of a thiourea group that mimics the oxyanion hole of a serine protease and a nearby nucleophilic/basic pyridyl group. The molecularly imprinted active site distinguishes subtle structural changes in the substrate, including elongation of the acyl chain by two carbons or shift of a remote methyl group by one carbon.
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Affiliation(s)
- M D Arifuzzaman
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
| | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
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6
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Engineering synergistic effects of immobilized cooperative catalysts. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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7
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Guo Z, Luo Q, Liu Z. Molecularly Imprinted Nanozymes with Free Substrate Access for Catalyzing the Ligation of ssDNA Sequences. Chemistry 2022; 28:e202202052. [DOI: 10.1002/chem.202202052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Zhanchen Guo
- State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Qi Luo
- State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Zhen Liu
- State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
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8
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Zaera F. Designing Sites in Heterogeneous Catalysis: Are We Reaching Selectivities Competitive With Those of Homogeneous Catalysts? Chem Rev 2022; 122:8594-8757. [PMID: 35240777 DOI: 10.1021/acs.chemrev.1c00905] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A critical review of different prominent nanotechnologies adapted to catalysis is provided, with focus on how they contribute to the improvement of selectivity in heterogeneous catalysis. Ways to modify catalytic sites range from the use of the reversible or irreversible adsorption of molecular modifiers to the immobilization or tethering of homogeneous catalysts and the development of well-defined catalytic sites on solid surfaces. The latter covers methods for the dispersion of single-atom sites within solid supports as well as the use of complex nanostructures, and it includes the post-modification of materials via processes such as silylation and atomic layer deposition. All these methodologies exhibit both advantages and limitations, but all offer new avenues for the design of catalysts for specific applications. Because of the high cost of most nanotechnologies and the fact that the resulting materials may exhibit limited thermal or chemical stability, they may be best aimed at improving the selective synthesis of high value-added chemicals, to be incorporated in organic synthesis schemes, but other applications are being explored as well to address problems in energy production, for instance, and to design greener chemical processes. The details of each of these approaches are discussed, and representative examples are provided. We conclude with some general remarks on the future of this field.
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Affiliation(s)
- Francisco Zaera
- Department of Chemistry and UCR Center for Catalysis, University of California, Riverside, California 92521, United States
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9
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Danneberg F, Westemeier H, Horx P, Zellmann F, Dörr K, Kalden E, Zeiger M, Akpinar A, Berger R, Göbel MW. RNA Hydrolysis by Heterocyclic Amidines and Guanidines: Parameters Affecting Reactivity. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100950] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Friederike Danneberg
- Institut für Organische Chemie und Chemische Biologie Goethe-Universität Frankfurt Max-von-Laue-Str. 7 D-60438 Frankfurt am Main Germany
| | - Hauke Westemeier
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 35032 Marburg Germany
| | - Philip Horx
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 35032 Marburg Germany
| | - Felix Zellmann
- Institut für Organische Chemie und Chemische Biologie Goethe-Universität Frankfurt Max-von-Laue-Str. 7 D-60438 Frankfurt am Main Germany
| | - Kathrin Dörr
- Institut für Organische Chemie und Chemische Biologie Goethe-Universität Frankfurt Max-von-Laue-Str. 7 D-60438 Frankfurt am Main Germany
| | - Elisabeth Kalden
- Institut für Organische Chemie und Chemische Biologie Goethe-Universität Frankfurt Max-von-Laue-Str. 7 D-60438 Frankfurt am Main Germany
| | - Mirco Zeiger
- Institut für Organische Chemie und Chemische Biologie Goethe-Universität Frankfurt Max-von-Laue-Str. 7 D-60438 Frankfurt am Main Germany
| | - Abdullah Akpinar
- Institut für Organische Chemie und Chemische Biologie Goethe-Universität Frankfurt Max-von-Laue-Str. 7 D-60438 Frankfurt am Main Germany
| | - Robert Berger
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 35032 Marburg Germany
| | - Michael W. Göbel
- Institut für Organische Chemie und Chemische Biologie Goethe-Universität Frankfurt Max-von-Laue-Str. 7 D-60438 Frankfurt am Main Germany
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10
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Zhao Y. Substrate Protection in Controlled Enzymatic Transformation of Peptides and Proteins. Chembiochem 2021; 22:2680-2687. [PMID: 34058051 PMCID: PMC8453913 DOI: 10.1002/cbic.202100217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 05/28/2021] [Indexed: 11/07/2022]
Abstract
Proteins are involved in practically every single biological process. The many enzymes involved in their synthesis, cleavage, and posttranslational modification (PTM) carry out highly specific tasks with no usage of protecting groups. Yet, the chemists' strategy of protection/deprotection potentially can be highly useful, for example, when a specific biochemical reaction catalyzed by a broad-specificity enzyme needs to be inhibited, during infection of cells by enveloped viruses, in the invasion and spread of cancer cells, and upon mechanistic investigation of signal-transduction pathways. Doing so requires highly specific binding of peptide substrates in aqueous solution with biologically competitive affinities. Recent development of peptide-imprinted cross-linked micelles allows such protection and affords previously impossible ways of manipulating peptides and proteins in enzymatic transformations.
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Affiliation(s)
- Yan Zhao
- Department of ChemistryIowa State UniversityAmesIA 50011–3111USA
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11
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Lin YC, Roa R, Dzubiella J. Electrostatic Reaction Inhibition in Nanoparticle Catalysis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:6800-6810. [PMID: 34032431 DOI: 10.1021/acs.langmuir.1c00903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Electrostatic reaction inhibition in heterogeneous catalysis emerges if charged reactants and products with similar charges are adsorbed on the catalyst and thus repel the approaching reactants. In this work, we study the effects of electrostatic inhibition on the reaction rate of unimolecular reactions catalyzed on the surface of a spherical model nanoparticle using particle-based reaction-diffusion simulations. Moreover, we derive closed rate equations based on an approximate Debye-Smoluchowski rate theory, valid for diffusion-controlled reactions, and a modified Langmuir adsorption isotherm, relevant for reaction-controlled reactions, to account for electrostatic inhibition in the Debye-Hückel limit. We study the kinetics of reactions ranging from low to high adsorptions on the nanoparticle surface and from the surface- to diffusion-controlled limits for charge valencies 1 and 2. In the diffusion-controlled limit, electrostatic inhibition drastically slows down the reactions for strong adsorption and low ionic concentration, which is well described by our theory. In particular, the rate decreases with adsorption affinity because, in this case, the inhibiting products are generated at a high rate. In the (slow) reaction-controlled limit, the effect of electrostatic inhibition is much weaker, as semiquantitatively reproduced by our electrostatic-modified Langmuir theory. We finally propose and verify a simple interpolation formula that describes electrostatic inhibition for all reaction speeds ("diffusion-influenced" reactions) in general.
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Affiliation(s)
- Yi-Chen Lin
- Applied Theoretical Physics-Computational Physics, Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Hermann-Herder Strasse 3, D-79104 Freiburg, Germany
| | - Rafael Roa
- Departamento de Física Aplicada I, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos S/N, E-29071 Málaga, Spain
| | - Joachim Dzubiella
- Applied Theoretical Physics-Computational Physics, Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Hermann-Herder Strasse 3, D-79104 Freiburg, Germany
- Research Group for Simulations of Energy Materials, Helmholtz-Zentrum Berlin, D-14109 Berlin, Germany
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12
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Bose I, Zhao Y. Tandem Aldol Reaction from Acetal Mixtures by an Artificial Enzyme with Site-Isolated Acid and Base Functionalities. ACS APPLIED POLYMER MATERIALS 2021; 3:2776-2784. [PMID: 34447941 PMCID: PMC8384266 DOI: 10.1021/acsapm.1c00299] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Site-isolation of catalysts can enable incompatible catalysts such as acid and base to be used in one pot for enhanced efficiency and other benefits. Although many synthetic platforms have been reported for this purpose, they generally do not possess the exquisite selectivity of site-isolated enzymes in nature. Here we report water-soluble protein-sized nanoparticles with site-isolated acids in the core and amines on the surface. The catalysts were made through molecular imprinting of cross-linked micelles, followed by facile one-step photoaffinity labeling of the imprinted binding site. With a tunable, substrate-specific active site, the bifunctional artificial enzyme catalyzed highly selective tandem cross aldol reaction between acetone and mixtures of isomeric aryl acetals. It could also transform a less reactive substrate over a more reactive one.
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13
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Cardoso AR, Frasco MF, Serrano V, Fortunato E, Sales MGF. Molecular Imprinting on Nanozymes for Sensing Applications. BIOSENSORS 2021; 11:152. [PMID: 34067985 PMCID: PMC8152260 DOI: 10.3390/bios11050152] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 04/29/2021] [Accepted: 05/07/2021] [Indexed: 06/12/2023]
Abstract
As part of the biomimetic enzyme field, nanomaterial-based artificial enzymes, or nanozymes, have been recognized as highly stable and low-cost alternatives to their natural counterparts. The discovery of enzyme-like activities in nanomaterials triggered a broad range of designs with various composition, size, and shape. An overview of the properties of nanozymes is given, including some examples of enzyme mimics for multiple biosensing approaches. The limitations of nanozymes regarding lack of selectivity and low catalytic efficiency may be surpassed by their easy surface modification, and it is possible to tune specific properties. From this perspective, molecularly imprinted polymers have been successfully combined with nanozymes as biomimetic receptors conferring selectivity and improving catalytic performance. Compelling works on constructing imprinted polymer layers on nanozymes to achieve enhanced catalytic efficiency and selective recognition, requisites for broad implementation in biosensing devices, are reviewed. Multimodal biomimetic enzyme-like biosensing platforms can offer additional advantages concerning responsiveness to different microenvironments and external stimuli. Ultimately, progress in biomimetic imprinted nanozymes may open new horizons in a wide range of biosensing applications.
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Affiliation(s)
- Ana R. Cardoso
- BioMark@UC, Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal; (A.R.C.); (M.F.F.); (V.S.)
- BioMark@ISEP, School of Engineering, Polytechnic Institute of Porto, 4249-015 Porto, Portugal
- CEB, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
- i3N/CENIMAT, Department of Materials Science, Faculty of Sciences and Technology, Universidade NOVA de Lisboa and CEMOP/UNINOVA, 2829-516 Caparica, Portugal;
| | - Manuela F. Frasco
- BioMark@UC, Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal; (A.R.C.); (M.F.F.); (V.S.)
- BioMark@ISEP, School of Engineering, Polytechnic Institute of Porto, 4249-015 Porto, Portugal
- CEB, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Verónica Serrano
- BioMark@UC, Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal; (A.R.C.); (M.F.F.); (V.S.)
- BioMark@ISEP, School of Engineering, Polytechnic Institute of Porto, 4249-015 Porto, Portugal
- CEB, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Elvira Fortunato
- i3N/CENIMAT, Department of Materials Science, Faculty of Sciences and Technology, Universidade NOVA de Lisboa and CEMOP/UNINOVA, 2829-516 Caparica, Portugal;
| | - Maria Goreti Ferreira Sales
- BioMark@UC, Faculty of Sciences and Technology, University of Coimbra, 3030-790 Coimbra, Portugal; (A.R.C.); (M.F.F.); (V.S.)
- BioMark@ISEP, School of Engineering, Polytechnic Institute of Porto, 4249-015 Porto, Portugal
- CEB, Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
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14
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Bose I, Zhao Y. Selective Hydrolysis of Aryl Esters under Acidic and Neutral Conditions by a Synthetic Aspartic Protease Mimic. ACS Catal 2021; 11:3938-3942. [PMID: 34422449 PMCID: PMC8378761 DOI: 10.1021/acscatal.1c00371] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Aspartic proteases use a pair of carboxylic acids to activate water molecules for nucleophilic attack. Here we report a nanoparticle catalyst with a similar catalytic motif capable of generating a hydroxide ion in its active site even under acidic reaction conditions. The synthetic enzyme accelerated the hydrolysis of para-nitrophenyl acetate (PNPA) by 91,000 times and could also hydrolyze nonactivated aryl esters at pH 7. The distance between the two acids and, in particular, the flexibility of the catalytic groups in the active site controlled the catalytic efficiency. The synthetic enzyme readily detected the addition of a single methyl on the acyl group of the substrate, as well as the substitution pattern on the phenyl ring.
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Affiliation(s)
- Ishani Bose
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
| | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
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15
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Li X, Zangiabadi M, Zhao Y. Molecularly Imprinted Synthetic Glucosidase for the Hydrolysis of Cellulose in Aqueous and Nonaqueous Solutions. J Am Chem Soc 2021; 143:5172-5181. [DOI: 10.1021/jacs.1c01352] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xiaowei Li
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
| | - Milad Zangiabadi
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
| | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
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16
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Zeng H, Stewart-Yates L, Casey LM, Bampos N, Roberts DA. Covalent Post-Assembly Modification: A Synthetic Multipurpose Tool in Supramolecular Chemistry. Chempluschem 2020; 85:1249-1269. [PMID: 32529789 DOI: 10.1002/cplu.202000279] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/25/2020] [Indexed: 11/10/2022]
Abstract
The use of covalent post-assembly modification (PAM) in supramolecular chemistry has grown significantly in recent years, to the point where PAM is now a versatile synthesis tool for tuning, modulating, and expanding the functionality of self-assembled complexes and materials. PAM underpins supramolecular template-synthesis strategies, enables modular derivatization of supramolecular assemblies, permits the covalent 'locking' of unstable structures, and can trigger controlled structural transformations between different assembled morphologies. This Review discusses key examples of PAM spanning a range of material classes, including discrete supramolecular complexes, self-assembled soft nanostructures and hierarchically ordered polymeric and framework materials. As such, we hope to highlight how PAM has continued to evolve as a creative and functional addition to the synthetic chemist's toolbox for constructing bespoke self-assembled complexes and materials.
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Affiliation(s)
- Haoxiang Zeng
- School of Chemistry and Key Center for Polymers and Colloids, The University of Sydney, Sydney, NSW 2006, Australia
| | - Luke Stewart-Yates
- School of Chemistry and Key Center for Polymers and Colloids, The University of Sydney, Sydney, NSW 2006, Australia
| | - Louis M Casey
- School of Chemistry and Key Center for Polymers and Colloids, The University of Sydney, Sydney, NSW 2006, Australia
| | - Nick Bampos
- Department of Chemistry, The University of Cambridge, Cambridge, CB2 1EW, United Kingdom
| | - Derrick A Roberts
- School of Chemistry and Key Center for Polymers and Colloids, The University of Sydney, Sydney, NSW 2006, Australia
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17
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Zhang Q, Chen Y, Lu R, Yao Y, Li C, Yu Y, Zhang S. Cross-linked small-molecule capsules with excitation wavelength-dependent photoluminescence and high loading capacity: design, synthesis and application in imaging-guided drug delivery. J Mater Chem B 2020; 8:2719-2725. [PMID: 32149293 DOI: 10.1039/c9tb02465d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The cross-linked small-molecule micelles (cSMs) have found applications in many fields but their low loading capacity and non-fluorescence property hindered their further development. Herein, water-soluble organic nanoparticles were applied as templates to "stretch" the hydrophobic core of cSMs and photo-cross-linking was employed to supply photoluminescence. The resulting cross-linked small-molecule capsules (cSCs) not only reserve the superior properties of cSMs of accurate monomer, easy functionalization and robust stability, but also achieve high drug loading capacity and excitation wavelength-dependent fluorescence, where the drug loading contents (DLCs) for various hydrophobic drugs were more than 30-fold higher than that of cSMs, and the maximum quantum yield could be as high as 12.0%. Featuring these superiorities, the cSCs hold promising potential in many fields and an example of doxorubicin-loaded cSCs (DOX@cSCs) for multichannel imaging-guided drug delivery is shown in this work.
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Affiliation(s)
- Qian Zhang
- National Engineering Research Centre for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China.
| | - Yun Chen
- National Engineering Research Centre for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China.
| | - Ruilin Lu
- College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Yongchao Yao
- National Engineering Research Centre for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China.
| | - Chuanqi Li
- National Engineering Research Centre for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China.
| | - Yunlong Yu
- National Engineering Research Centre for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China.
| | - Shiyong Zhang
- National Engineering Research Centre for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China. and College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
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19
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Duan L, Zhao Y. Zwitterionic Molecularly Imprinted Cross-Linked Micelles for Alkaloid Recognition in Water. J Org Chem 2019; 84:13457-13464. [PMID: 31545044 DOI: 10.1021/acs.joc.9b01629] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Molecular imprinting within surface/core doubly cross-linked micelles afforded water-soluble nanoparticle receptors for their template molecules. Extremely strong imprinting effects were consistently observed, with the imprinting factor >100:1 in comparison to nonimprinted nanoparticles prepared without the templates. The ionic nature of the cross-linkable surfactant strongly impacted the imprinting and binding process. Imprinted receptors prepared with a zwitterionic cross-linkable surfactant (4) outperformed a similar cationic one (1) when the template was zwitterionic or cationic and preferred their templates over structural analogues regardless of their ionic characteristics. Electrostatic interactions, however, dominated the receptors made with the cationic surfactant. The same micellar imprinting applied to simple as well as complex alkaloids. Imprinted receptors from 4 were also shown to categorize their alkaloid guests according to their structural similarity.
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Affiliation(s)
- Likun Duan
- Department of Chemistry , Iowa State University , Ames , Iowa 50011-3111 , United States
| | - Yan Zhao
- Department of Chemistry , Iowa State University , Ames , Iowa 50011-3111 , United States
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Li X, Zhao Y. Chiral Gating for Size- and Shape-Selective Asymmetric Catalysis. J Am Chem Soc 2019; 141:13749-13752. [PMID: 31368701 DOI: 10.1021/jacs.9b06619] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A poor or mediocre stereoselectivity is a key roadblock for a chiral catalyst to find practical adoptions. We report a facile method to create a tunable chiral space near a chiral catalyst to augment its selectivity. The space was created rationally through templated polymerization within cross-linked micelles, using readily available amino acid derivatives. It provided gated entrance of reactants to the catalyst, enabling a mediocre prolinamide to catalyze aldol condensation in water with excellent yields and ee, in a size- and shape-selective manner.
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Affiliation(s)
- Xiaowei Li
- Department of Chemistry , Iowa State University , Ames , Iowa 50011-3111 , United States
| | - Yan Zhao
- Department of Chemistry , Iowa State University , Ames , Iowa 50011-3111 , United States
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