1
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Singh S, Mandal K, Chakravarty M. Access to Diverse Glutamic Acid Dendrons and a Janus Peptide Dendrimer Using an Atypical Solid Phase Synthesis. J Org Chem 2024; 89:11261-11271. [PMID: 39104055 DOI: 10.1021/acs.joc.4c00909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
The negligible cytotoxicity of anion surface-linked dendrons makes glutamic acid-based dendrons a potential candidate for materials and biological applications. Despite the inherent drawbacks of the conventional solution phase synthesis of glutamic acid-based dendrons, there have been no advancements in these protocols. Herein, we demonstrate the first-ever convergent solid phase synthesis of dendrons, up to fourth generation, having glutamic acid branching points produced by preactivation of dicarboxylic acid groups with N-hydroxysuccinimide and simultaneous coupling with amine groups of two growing peptide chains, with excellent yields (30-70%). In addition to the general advantages, such as the easy workup, a final single purification step, and an overall short synthesis duration, the convergent solid phase synthesis allowed us to chemically synthesize glutamic acid branching-based dendrons that cannot be accessed by standard divergent solid phase synthesis. This method has also been validated for its application in synthesizing hard-to-achieve Janus peptide dendrimers in a single stretch on a solid support. Our work corroborates the efficacy of controlled -COOH activation to accomplish an atypical solid phase synthesis of diverse glutamic acid dendrons in a convergent fashion. This is the first example of a Janus peptide dendrimer being synthesized on a solid support, utilizing both convergent and divergent approaches simultaneously.
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Affiliation(s)
- Sameer Singh
- Department of Chemistry, Birla Institute of Technology and Sciences, Pilani-Hyderabad Campus Jawahar Nagar, Shamirpet, Hyderabad 500078, India
| | - Kalyaneswar Mandal
- Tata Institute of Fundamental Research Hyderabad, 36/p Gopanpally, Hyderabad, Telangana 500046, India
| | - Manab Chakravarty
- Department of Chemistry, Birla Institute of Technology and Sciences, Pilani-Hyderabad Campus Jawahar Nagar, Shamirpet, Hyderabad 500078, India
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2
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Andrews KG, Piskorz TK, Horton PN, Coles SJ. Enzyme-like Acyl Transfer Catalysis in a Bifunctional Organic Cage. J Am Chem Soc 2024; 146:17887-17897. [PMID: 38914009 PMCID: PMC11228979 DOI: 10.1021/jacs.4c03560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Amide-based organic cage cavities are, in principle, ideal enzyme active site mimics. Yet, cage-promoted organocatalysis has remained elusive, in large part due to synthetic accessibility of robust and functional scaffolds. Herein, we report the acyl transfer catalysis properties of robust, hexaamide cages in organic solvent. Cage structural variation reveals that esterification catalysis with an acyl anhydride acyl carrier occurs only in bifunctional cages featuring internal pyridine motifs and two crucial antipodal carboxylic acid groups. 1H NMR data and X-ray crystallography show that the acyl carrier is rapidly activated inside the cavity as a covalent mixed-anhydride intermediate with an internal hydrogen bond. Michaelis-Menten (saturation) kinetics suggest weak binding (KM = 0.16 M) of the alcohol pronucleophile close to the internal anhydride. Finally, activation and delivery of the alcohol to the internal anhydride by the second carboxylic acid group forms ester product and releases the cage catalyst. Eyring analysis indicates a strong enthalpic stabilization of the transition state (5.5 kcal/mol) corresponding to a rate acceleration of 104 over background acylation, and an ordered, associative rate-determining attack by the alcohol, supported by DFT calculations. We conclude that internal bifunctional organocatalysis specific to the cage structural design is responsible for the enhancement over the background reaction. These results pave the way for organic-phase enzyme mimicry in self-assembled cavities with the potential for cavity elaboration to enact selective acylations.
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Affiliation(s)
- Keith G Andrews
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford OX1 3TA, U.K
- Department of Chemistry, Durham University, Lower Mount Joy, South Rd, Durham DH1 3LE, U.K
| | - Tomasz K Piskorz
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford OX1 3TA, U.K
| | - Peter N Horton
- UK National Crystallography Service, School of Chemistry, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, SO17 1BJ, U.K
| | - Simon J Coles
- UK National Crystallography Service, School of Chemistry, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, SO17 1BJ, U.K
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3
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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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4
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Ghanbari N, Ghafuri H. Pyromellitic acid grafted to cross-linked LDH by dendritic units: An efficient and recyclable heterogeneous catalyst for green synthesis of 2,3-dihydro quinazoline and dihydropyrimidinones derivatives. Heliyon 2023; 9:e20978. [PMID: 37928013 PMCID: PMC10623181 DOI: 10.1016/j.heliyon.2023.e20978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/05/2023] [Accepted: 10/12/2023] [Indexed: 11/07/2023] Open
Abstract
In this work, using layered double hydroxide (LDH) inorganic substrate, melamine as binding agent and dendrimer G1 and also pyromellitic acid (PMA) organic catalytic agent a heterogeneous acid catalyst was designed and prepared. After that, the prepared organic-inorganic catalyst was evaluated by various identification techniques such as FTIR, EDX, XRD, TGA, FESEM, and BET, and the results showed that the desired structure was successfully prepared. Also, in order to investigate the efficiency of the LDH@Me-PMA nanocatalyst as an efficient and heterogeneous catalyst, it was used for green and one-pot synthesis of 2,3-dihydro quinazoline and 3,4-dihydropyrimidinone-2-(1H)-ones derivatives. The use of LDH@Me-PMA catalyst led to the synthesis of the desired derivatives with higher efficiency and shorter reaction time than previously reported works. In addition, the prepared LDH@Me-PMA acid catalyst has the ability to be recycled and reused for 5 consecutive periods and has high stability, which is well consistent with the principles of green chemistry.
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Affiliation(s)
- Nastaran Ghanbari
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Hossein Ghafuri
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
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5
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Zheng T, Tang Q, Wan L, Zhao Y, Xu R, Xu X, Li H, Han D. Controlled Self-Assembly of the Catalytic Core of Hydrolases Using DNA Scaffolds. NANO LETTERS 2023; 23:2081-2086. [PMID: 36854101 DOI: 10.1021/acs.nanolett.2c03387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Precisely organizing functional molecules of the catalytic cores in natural enzymes to promote catalytic performance is a challenging goal in respect to artificial enzyme construction. In this work, we report a DNA-scaffolded mimicry of the catalytic cores of hydrolases, which showed a controllable and hierarchical acceleration of the hydrolysis of fluorescein diacetate (FDA). The results revealed that the efficiency of hydrolysis was greatly increased by the DNA-scaffold-induced proximity of catalytic amino acid residues (histidine and arginine) with up to 4-fold improvement relative to the free amino acids. In addition, DNA-scaffolded one-dimensional and two-dimensional assemblies of multiple catalytic cores could further accelerate the hydrolysis. This work demonstrated that the DNA-guided assembly could be used as a promising platform to build enzyme mimics in a programmable and hierarchical way.
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Affiliation(s)
- Tingting Zheng
- Institute of Molecular Medicine and Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Qian Tang
- Institute of Molecular Medicine and Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Liqi Wan
- Institute of Molecular Medicine and Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Yumeng Zhao
- Institute of Molecular Medicine and Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Rui Xu
- Institute of Molecular Medicine and Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Xuemei Xu
- Institute of Molecular Medicine and Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Haowen Li
- Institute of Molecular Medicine and Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Da Han
- Institute of Molecular Medicine and Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, State Key Laboratory of Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
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6
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Lisi D, Vezzoni CA, Casnati A, Sansone F, Salvio R. Intra- and Intermolecular Cooperativity in the Catalytic Activity of Phosphodiester Cleavage by Self-Assembled Systems Based on Guanidinylated Calix[4]arenes. Chemistry 2023; 29:e202203213. [PMID: 36382737 DOI: 10.1002/chem.202203213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/15/2022] [Accepted: 11/15/2022] [Indexed: 11/17/2022]
Abstract
The calix[4]arene scaffold, blocked in the cone conformation through alkylation with long alkyl chains, and decorated at the upper rim with four guanidine or arginine units, effectively catalyzes the cleavage of the phosphodiester bond of DNA and RNA model compounds in water. An exhaustive kinetic investigation unequivocally points to the existence of spontaneous aggregation phenomena, driven by hydrophobic effect, occurring at different critical concentrations that depend on the identity of the compound. A pronounced superiority of the assembled structures compared with the monomers in solution was observed. Moreover, the catalytically active units, clustered on the macrocyclic tetrafunctional scaffold, were proved to efficiently cooperate in the catalytic mechanism and result in improved reaction rates compared to those of the monofunctional model compounds. The kinetic analysis is also integrated and corroborated with further experiments based on fluorescence spectroscopy and light scattering. The advantage of the supramolecular assemblies based on tetrafunctional calixarenes leads to believe that the active units can cooperate not only intramolecularly but also intermolecularly. The molecules in the aggregates can probably mold, flex and rearrange but, at the same time, keep an ordered structure that favors phosphodiester bond cleavage. This dynamic preorganization can allow the catalytic units to reach a better fitting with the substrates and perform a superior catalytic activity.
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Affiliation(s)
- Daniele Lisi
- Dipartimento di Scienze e Tecnologie Chimiche, Università "Tor Vergata", Via della Ricerca Scientifica, 1, 00133, Roma, Italy
| | - Carlo Alberto Vezzoni
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze, 17/A, 43124, Parma, Italy
| | - Alessandro Casnati
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze, 17/A, 43124, Parma, Italy
| | - Francesco Sansone
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze, 17/A, 43124, Parma, Italy
| | - Riccardo Salvio
- Dipartimento di Scienze e Tecnologie Chimiche, Università "Tor Vergata", Via della Ricerca Scientifica, 1, 00133, Roma, Italy.,ISB - CNR Sezione Meccanismi di Reazione, Università La Sapienza, 00185, Roma, Italy
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7
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Ożga K, Berlicki Ł. Miniprotein-Based Artificial Retroaldolase. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Affiliation(s)
- Katarzyna Ożga
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Łukasz Berlicki
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
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8
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Patel V, Patel P, Patel JV, Patel PM. Dendrimer as a versatile platform for biomedical application: A review. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100516] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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9
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Mandal R, Mahanty K, Mandal S, De Sarkar S, Tarafdar PK. Membrane transport inspired hydrolysis of non-activated esters at near physiological pH. Chem Commun (Camb) 2021; 57:11088-11091. [PMID: 34617097 DOI: 10.1039/d1cc04525c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A positively charged micelle loaded with substrates was transported selectively to the reaction site (cathode) to promote the proximity and localization of the reactants (ester and hydroxide). The guided vehicular delivery coupled with electrolysis allows the hydrolysis of non-activated esters at near physiological pH with significant yields along with recyclability.
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Affiliation(s)
- Raki Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, PIN-741246, India.
| | - Kingshuk Mahanty
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, PIN-741246, India.
| | - Subhendu Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, PIN-741246, India.
| | - Suman De Sarkar
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, PIN-741246, India.
| | - Pradip K Tarafdar
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, PIN-741246, India.
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10
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Lyu Y, Scrimin P. Mimicking Enzymes: The Quest for Powerful Catalysts from Simple Molecules to Nanozymes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01219] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yanchao Lyu
- University of Padova, Department of Chemical Sciences, via Marzolo, 1, 35131 Padova, Italy
| | - Paolo Scrimin
- University of Padova, Department of Chemical Sciences, via Marzolo, 1, 35131 Padova, Italy
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11
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Smith RJ, Gorman C, Menegatti S. Synthesis, structure, and function of internally functionalized dendrimers. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200721] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ryan J. Smith
- Department of Chemistry North Carolina State University Raleigh North Carolina USA
| | - Christopher Gorman
- Department of Chemistry North Carolina State University Raleigh North Carolina USA
| | - Stefano Menegatti
- Department of Chemical and Biomolecular Engineering North Carolina State University Raleigh North Carolina USA
- Biomanufacturing Training and Education Center Raleigh North Carolina USA
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12
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Hosseini M, Mozafari M. Cerium Oxide Nanoparticles: Recent Advances in Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E3072. [PMID: 32660042 PMCID: PMC7411590 DOI: 10.3390/ma13143072] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/04/2020] [Accepted: 07/06/2020] [Indexed: 12/17/2022]
Abstract
Submicron biomaterials have recently been found with a wide range of applications for biomedical purposes, mostly due to a considerable decrement in size and an increment in surface area. There have been several attempts to use innovative nanoscale biomaterials for tissue repair and tissue regeneration. One of the most significant metal oxide nanoparticles (NPs), with numerous potential uses in future medicine, is engineered cerium oxide (CeO2) nanoparticles (CeONPs), also known as nanoceria. Although many advancements have been reported so far, nanotoxicological studies suggest that the nanomaterial's characteristics lie behind its potential toxicity. Particularly, physicochemical properties can explain the positive and negative interactions between CeONPs and biosystems at molecular levels. This review represents recent advances of CeONPs in biomedical engineering, with a special focus on tissue engineering and regenerative medicine. In addition, a summary report of the toxicity evidence on CeONPs with a view toward their biomedical applications and physicochemical properties is presented. Considering the critical role of nanoengineering in the manipulation and optimization of CeONPs, it is expected that this class of nanoengineered biomaterials plays a promising role in the future of tissue engineering and regenerative medicine.
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Affiliation(s)
- Motaharesadat Hosseini
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran 1591634311, Iran;
| | - Masoud Mozafari
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences (IUMS), Tehran 1449614535, Iran
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13
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Wang L, Hu Z, Wu S, Pan J, Xu X, Niu X. A peroxidase-mimicking Zr-based MOF colorimetric sensing array to quantify and discriminate phosphorylated proteins. Anal Chim Acta 2020; 1121:26-34. [DOI: 10.1016/j.aca.2020.04.073] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 04/17/2020] [Accepted: 04/27/2020] [Indexed: 02/08/2023]
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14
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Affiliation(s)
- Luca Gabrielli
- Department of Chemical Sciences University of Padova, via Marzolo, 1 35131 Padova Italy
| | - Leonard J. Prins
- Department of Chemical Sciences University of Padova, via Marzolo, 1 35131 Padova Italy
| | - Federico Rastrelli
- Department of Chemical Sciences University of Padova, via Marzolo, 1 35131 Padova Italy
| | - Fabrizio Mancin
- Department of Chemical Sciences University of Padova, via Marzolo, 1 35131 Padova Italy
| | - Paolo Scrimin
- Department of Chemical Sciences University of Padova, via Marzolo, 1 35131 Padova Italy
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15
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Mikolajczak DJ, Berger AA, Koksch B. Catalytically Active Peptide-Gold Nanoparticle Conjugates: Prospecting for Artificial Enzymes. Angew Chem Int Ed Engl 2020; 59:8776-8785. [PMID: 31905254 PMCID: PMC7318681 DOI: 10.1002/anie.201908625] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 11/27/2019] [Indexed: 12/12/2022]
Abstract
The self-assembly of peptides onto the surface of gold nanoparticles has emerged as a promising strategy towards the creation of artificial enzymes. The resulting high local peptide density surrounding the nanoparticle leads to cooperative and synergistic effects, which result in rate accelerations and distinct catalytic properties compared to the unconjugated peptide. This Minireview summarizes contributions to and progress made in the field of catalytically active peptide-gold nanoparticle conjugates. The origin of distinct properties, as well as potential applications, are also discussed.
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Affiliation(s)
- Dorian J. Mikolajczak
- Department of Biology, Chemistry and PharmacyFreie Universität BerlinTakustraße 314195BerlinGermany
| | - Allison A. Berger
- Department of Biology, Chemistry and PharmacyFreie Universität BerlinTakustraße 314195BerlinGermany
| | - Beate Koksch
- Department of Biology, Chemistry and PharmacyFreie Universität BerlinTakustraße 314195BerlinGermany
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16
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17
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Mikolajczak DJ, Berger AA, Koksch B. Catalytically Active Peptide–Gold Nanoparticle Conjugates: Prospecting for Artificial Enzymes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201908625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dorian J. Mikolajczak
- Department of Biology, Chemistry and Pharmacy Freie Universität Berlin Takustraße 3 14195 Berlin Germany
| | - Allison A. Berger
- Department of Biology, Chemistry and Pharmacy Freie Universität Berlin Takustraße 3 14195 Berlin Germany
| | - Beate Koksch
- Department of Biology, Chemistry and Pharmacy Freie Universität Berlin Takustraße 3 14195 Berlin Germany
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18
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Sathiya Savithri J, Rajakumar P. Synthesis, optical, electrochemical properties and anticancer activity of (S)-BINOL cored triazole bridged dendrimers decorated with rhodamine B surface group. RSC Adv 2019; 9:36994-37002. [PMID: 35539054 PMCID: PMC9075150 DOI: 10.1039/c9ra06751e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 10/22/2019] [Indexed: 11/21/2022] Open
Abstract
(S)-BINOL cored dendrimers 1–3 with a rhodamine B surface group and triazole bridging unit were synthesized up to second generation in good yield by convergent synthesis through click chemistry. The chiro-optical property of the synthesized dendrimers reveals that the specific rotation increases as the order of dendrimer increases from the zeroth generation to the second generation dendrimer. The electrochemical properties of the dendrimers 1, 2 and 3 showed quasi-reversible behavior in cyclic voltammetry. The anticancer activity against human hepatocellular carcinoma cell for the second generation dendrimer 3 was found to be better than that for the lower generation dendrimers 1 and 2. (S)-BINOL cored dendrimers 1–3 with rhodamine B surface group and triazole bridging unit were synthesized up to second generation in good yield by convergent synthesis through click chemistry.![]()
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Affiliation(s)
- Jothinathan Sathiya Savithri
- Department of Organic Chemistry, University of Madras Guindy Campus Chennai - 600 025 Tamil Nadu India +91 44 2230 0488 +91 44 2220 2814
| | - Perumal Rajakumar
- Department of Organic Chemistry, University of Madras Guindy Campus Chennai - 600 025 Tamil Nadu India +91 44 2230 0488 +91 44 2220 2814
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19
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Sherly mole P, George S, Shebitha A, Kannan V, Mathew S, Asha K, Sreekumar K. Amphiphilic Dendrimer as Reverse Micelle: Synthesis, Characterization and Application as Homogeneous Organocatalyst. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130676] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Baeriswyl S, Javor S, Stocker A, Darbre T, Reymond J. X‐Ray Crystal Structure of a Second‐Generation Peptide Dendrimer in Complex with
Pseudomonas aeruginosa
Lectin LecB. Helv Chim Acta 2019. [DOI: 10.1002/hlca.201900178] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Stéphane Baeriswyl
- Department of Chemistry and BiochemistryUniversity of Bern Freiestrasse 3 3012 Bern Switzerland
| | - Sacha Javor
- Department of Chemistry and BiochemistryUniversity of Bern Freiestrasse 3 3012 Bern Switzerland
| | - Achim Stocker
- Department of Chemistry and BiochemistryUniversity of Bern Freiestrasse 3 3012 Bern Switzerland
| | - Tamis Darbre
- Department of Chemistry and BiochemistryUniversity of Bern Freiestrasse 3 3012 Bern Switzerland
| | - Jean‐Louis Reymond
- Department of Chemistry and BiochemistryUniversity of Bern Freiestrasse 3 3012 Bern Switzerland
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Abstract
Nanoparticulate materials displaying enzyme-like properties, so-called nanozymes, are explored as substitutes for natural enzymes in several industrial, energy-related, and biomedical applications. Outstanding high stability, enhanced catalytic activities, low cost, and availability at industrial scale are some of the fascinating features of nanozymes. Furthermore, nanozymes can also be equipped with the unique attributes of nanomaterials such as magnetic or optical properties. Due to the impressive development of nanozymes during the last decade, their potential in the context of tissue engineering and regenerative medicine also started to be explored. To highlight the progress, in this review, we discuss the two most representative nanozymes, namely, cerium- and iron-oxide nanomaterials, since they are the most widely studied. Special focus is placed on their applications ranging from cardioprotection to therapeutic angiogenesis, bone tissue engineering, and wound healing. Finally, current challenges and future directions are discussed.
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Tabatabaei Mirakabad FS, Khoramgah MS, Keshavarz F K, Tabarzad M, Ranjbari J. Peptide dendrimers as valuable biomaterials in medical sciences. Life Sci 2019; 233:116754. [PMID: 31415768 DOI: 10.1016/j.lfs.2019.116754] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/31/2019] [Accepted: 08/11/2019] [Indexed: 01/01/2023]
Abstract
Peptides are oligomers of amino acids, which have been used in a wide range of applications, particularly in medical and pharmaceutical sciences. Linear peptides have been extensively developed in various fields of medicine as therapeutics or targeting agents. The branched structure of peptide dendrimers with peptide (commonly, poly l‑Lysine) or non-peptide (commonly poly‑amidoamine) core, often exhibits valuable novel features, improves stability and enhances the functionality of peptide in comparison with small linear peptides. The potential applications of Branched and hyper-branched peptidic structures which are known as peptide dendrimers in biomedical sciences have been approved vastly. A peptide dendrimer contains three distinct parts including core, building blocks and branching units or surface functional groups. These structures provide a lot of opportunities in the pharmaceutical field, particularly for novel drug development. In this review, a brief summary of different biomedical applications of peptide dendrimers is presented, and peptide dendrimers as active pharmaceutical ingredients and drug delivery carriers are discussed. Applications of peptide dendrimers in vaccines and diagnostic tools are also presented, in brief. Generally, peptide dendrimers are promising biomaterials with high evolution rate for clinical and non-clinical applications in medicine.
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Affiliation(s)
| | - Maryam Sadat Khoramgah
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Kamyar Keshavarz F
- School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Tabarzad
- Protein Technology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Javad Ranjbari
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Eco-friendly synthesis of 3-aminoimidazo [1, 2-a] pyridines via a one-pot three-component reaction in PEG catalyzed by peptide nanofibers: as hydrogen-bonding organocatalyst. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01744-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sheet D, Bera A, Fu Y, Desmecht A, Riant O, Hermans S. Carbon‐Nanotube‐Appended PAMAM Dendrimers Bearing Iron(II) α‐Keto Acid Complexes: Catalytic Non‐Heme Oxygenase Models. Chemistry 2019; 25:9191-9196. [DOI: 10.1002/chem.201901735] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 05/13/2019] [Indexed: 01/20/2023]
Affiliation(s)
- Debobrata Sheet
- Institute of Condensed Matter and Nanosciences/Molecular Chemistry, Materials and Catalysis (IMCN/MOST)UCLouvain Place Louis Pasteur 1 1348 Louvain-la-Neuve Belgium
- Department of ChemistryPresidency University, 86/1 College Street Kolkata 700073 India
| | - Abhijit Bera
- School of Chemical SciencesIndian Association for the Cultivation of Sciences 2A & 2B Raja S C Mullick Road Kolkata 700032 India
| | - Yang Fu
- Institute of Condensed Matter and Nanosciences/Molecular Chemistry, Materials and Catalysis (IMCN/MOST)UCLouvain Place Louis Pasteur 1 1348 Louvain-la-Neuve Belgium
| | - Antonin Desmecht
- Institute of Condensed Matter and Nanosciences/Molecular Chemistry, Materials and Catalysis (IMCN/MOST)UCLouvain Place Louis Pasteur 1 1348 Louvain-la-Neuve Belgium
| | - Olivier Riant
- Institute of Condensed Matter and Nanosciences/Molecular Chemistry, Materials and Catalysis (IMCN/MOST)UCLouvain Place Louis Pasteur 1 1348 Louvain-la-Neuve Belgium
| | - Sophie Hermans
- Institute of Condensed Matter and Nanosciences/Molecular Chemistry, Materials and Catalysis (IMCN/MOST)UCLouvain Place Louis Pasteur 1 1348 Louvain-la-Neuve Belgium
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Nosov RV, Stoikov II. Synthesis of Bisthiacalix[4]arene: Reaction of Piperazine with Monoacrylamide Derivative of p-tert-Butylthiacalix[4]arene. RUSS J GEN CHEM+ 2018. [DOI: 10.1134/s1070363218110117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Wang L, Cui Y, Chen S, Wang G, Gao D, Liu Y, Luo Q, Liu Z, Zhang X. Highly water-soluble, pH sensitive and biocompatible PAMAM ‘dendrizyme’ to maintain catalytic activity in complex medium. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:315-323. [DOI: 10.1016/j.msec.2017.02.144] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 12/06/2016] [Accepted: 02/24/2017] [Indexed: 01/05/2023]
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Nothling MD, Ganesan A, Condic-Jurkic K, Pressly E, Davalos A, Gotrik MR, Xiao Z, Khoshdel E, Hawker CJ, O'Mara ML, Coote ML, Connal LA. Simple Design of an Enzyme-Inspired Supported Catalyst Based on a Catalytic Triad. Chem 2017. [DOI: 10.1016/j.chempr.2017.04.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Scherz LF, Abdel-Rahman EA, Ali SS, Schlüter AD, Abdel-Rahman MA. Design, synthesis and cytotoxic activity of water-soluble quinones with dibromo- p-benzoquinone cores and amino oligo(ethylene glycol) side chains against MCF-7 breast cancer cells. MEDCHEMCOMM 2017; 8:662-672. [PMID: 30108784 DOI: 10.1039/c6md00728g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 02/11/2017] [Indexed: 11/21/2022]
Abstract
A series of novel quinones was synthesized by reacting tetrabromo-p-benzoquinone with amino oligo(ethylene glycol) dendrons of generation numbers g = 0-2. According to the performed shake-flask experiments, their aqueous solubility (S = 18 mg l-1-1.6 g ml-1) and partition coefficients (log Poct/wat = 2.53-0.21) can be tuned in a wide range as a function of g. In vitro cytotoxicity assays of tetrabromo-p-benzoquinone and its derivatives against MCF-7 human breast cancer cells showed a concentration- and generation-specific biological activity with IC50-values as low as 0.8 μM. Further investigations revealed a considerable selectivity against cancer cells, as indicated by a weak cytotoxicity against human skin fibroblast cells (>80% survival) within the studied range of concentrations. The results demonstrate that these novel amino oligo(ethylene glycol) dendrons depict versatile tools to ameliorate physical and pharmacological characteristics of extremely hydrophobic molecules and make them susceptible to biological applications.
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Affiliation(s)
- Leon F Scherz
- Institute of Polymers , Department of Materials , ETH Zürich , 8093 Zürich , Switzerland
| | - Engy A Abdel-Rahman
- Pharmacology Department , Faculty of Medicine , Assiut University , 71515 Assiut , Egypt.,Center for Aging and Associated Diseases , Helmy Institute of Medical Science , Zewail City of Science and Technology , 12588 Giza , Egypt
| | - Sameh S Ali
- Center for Aging and Associated Diseases , Helmy Institute of Medical Science , Zewail City of Science and Technology , 12588 Giza , Egypt
| | - A Dieter Schlüter
- Institute of Polymers , Department of Materials , ETH Zürich , 8093 Zürich , Switzerland
| | - Mona A Abdel-Rahman
- Chemistry Department , Polymer Lab. 109 , Faculty of Science , Assiut University , 71516 Assiut , Egypt .
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Cyclopropanation reactions catalysed by dendrimers possessing one metalloporphyrin active site at the core: linear and sigmoidal kinetic behaviour for different dendrimer generations. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.01.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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30
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Urzúa JI, Regueira MA, Lazzari M, Torneiro M. Shape-persistent fluorescent tetraphenylmethane dendrimers. Polym Chem 2016. [DOI: 10.1039/c6py01046f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the first examples of a new class of rigid dendrimers made of three-dimensional tetraphenylmethane units connected by ethynylene linkers.
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Affiliation(s)
- Julio I. Urzúa
- Departamento de Química Orgánica
- Facultade de Química
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - María A. Regueira
- Departamento de Química Orgánica
- Facultade de Química
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Massimo Lazzari
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Física
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Mercedes Torneiro
- Departamento de Química Orgánica
- Facultade de Química
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
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31
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32
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Ornelas C. Brief Timelapse on Dendrimer Chemistry: Advances, Limitations, and Expectations. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500393] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Catia Ornelas
- Institute of Chemistry; University of Campinas - Unicamp; Campinas SP 13083-970 Brazil
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33
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Takahashi T, Vo Ngo BC, Xiao L, Arya G, Heller MJ. Molecular mechanical properties of short-sequence peptide enzyme mimics. J Biomol Struct Dyn 2015; 34:463-74. [DOI: 10.1080/07391102.2015.1039586] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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34
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Selvakumar K, Motiei L, Margulies D. Enzyme-Artificial Enzyme Interactions as a Means for Discriminating among Structurally Similar Isozymes. J Am Chem Soc 2015; 137:4892-5. [PMID: 25819325 DOI: 10.1021/jacs.5b02496] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
We describe the design and function of an artificial enzyme-linked receptor (ELR) that can bind different members of the glutathione-S-transferase (GST) enzyme family. The artificial enzyme-enzyme interactions distinctly affect the catalytic activity of the natural enzymes, the biomimetic, or both, enabling the system to discriminate among structurally similar GST isozymes.
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Affiliation(s)
| | - Leila Motiei
- Department of Organic Chemistry, The Weizmann Institute of Science, Rehovot, Israel 76100
| | - David Margulies
- Department of Organic Chemistry, The Weizmann Institute of Science, Rehovot, Israel 76100
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35
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Takahashi T, Cheung M, Butterweck T, Schankweiler S, Heller MJ. Quest for a turnover mechanism in peptide-based enzyme mimics. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2014.10.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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36
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Wang S, Liu P, Wang WJ, Zhang Z, Li BG. Hyperbranched polyethylene-supported l-proline: a highly selective and recyclable organocatalyst for asymmetric aldol reactions. Catal Sci Technol 2015. [DOI: 10.1039/c5cy00250h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A recyclable l-proline-based organocatalyst system with unique hyperbranched polyethylene as a scaffold is prepared for highly stereoselective asymmetric aldol reactions.
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Affiliation(s)
- Song Wang
- State Key Lab of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
- China
| | - Pingwei Liu
- State Key Lab of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
- China
| | - Wen-Jun Wang
- State Key Lab of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
- China
| | - Zhiguo Zhang
- Key Lab of Biomass Chemical Engineering of Ministry of Education
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
- China
| | - Bo-Geng Li
- State Key Lab of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou
- China
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Zhang C, Xue X, Luo Q, Li Y, Yang K, Zhuang X, Jiang Y, Zhang J, Liu J, Zou G, Liang XJ. Self-assembled Peptide nanofibers designed as biological enzymes for catalyzing ester hydrolysis. ACS NANO 2014; 8:11715-23. [PMID: 25375351 DOI: 10.1021/nn5051344] [Citation(s) in RCA: 155] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The structural arrangement of amino acid residues in a native enzyme provides a blueprint for the design of artificial enzymes. One challenge of mimicking the catalytic center of a native enzyme is how to arrange the essential amino acid residues in an appropriate position. In this study, we designed an artificial hydrolase via self-assembly of short peptides to catalyze ester hydrolysis. When the assembled hydrolase catalytic sites were embedded in a matrix of peptide nanofibers, they exhibited much higher catalytic efficiency than the peptide nanofibers without the catalytic sites, suggesting that this well-ordered nanostructure is an attractive scaffold for developing new artificial enzymes. Furthermore, the cytotoxicity of the assembled hydrolase was evaluated with human cells, and the novel artificial biological enzyme showed excellent biocompatibility.
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Affiliation(s)
- Chunqiu Zhang
- CAS Key Laboratory for Biological Effects of Nanomaterials & Nanosafety, National Center for Nanoscience and Technology , No. 11 Beiyitiao, Zhongguancun, Beijing 100190, China
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Szyrwiel Ł, Szczukowski Ł, Pap JS, Setner B, Szewczuk Z, Malinka W. The Cu2+ Binding Properties of Branched Peptides Based on l-2,3-Diaminopropionic Acid. Inorg Chem 2014; 53:7951-9. [DOI: 10.1021/ic5007428] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Łukasz Szyrwiel
- CNRS/UPPA, LCABIE, UMR5254, Hélioparc,
2, av. Pr. Angot, F-64053 Pau, France
| | - Łukasz Szczukowski
- Department of Chemistry
of Drugs, Wrocław Medical University, ul. Borowska 211, 50-552 Wrocław, Poland
| | - József S. Pap
- Surface Chemistry and Catalysis Department, Centre for
Energy Research, Hungarian Academy of Sciences, 1525 Budapest 114, P.O. Box 49, Budapest, Hungary
| | - Bartosz Setner
- Faculty of Chemistry, University of Wrocław, ul. F. Joliot-Curie 14, 50−383 Wrocław, Poland
| | - Zbigniew Szewczuk
- Faculty of Chemistry, University of Wrocław, ul. F. Joliot-Curie 14, 50−383 Wrocław, Poland
| | - Wiesław Malinka
- Department of Chemistry
of Drugs, Wrocław Medical University, ul. Borowska 211, 50-552 Wrocław, Poland
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39
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Finessi M, Szilagyi I, Maroni P. Dendrimer induced interaction forces between colloidal particles revealed by direct force and aggregation measurements. J Colloid Interface Sci 2014; 417:346-55. [PMID: 24407697 DOI: 10.1016/j.jcis.2013.11.060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 11/21/2013] [Accepted: 11/22/2013] [Indexed: 11/18/2022]
Abstract
Interaction forces and aggregation rates were determined in order to characterize colloid stability of negative carboxyl latex particles in the presence of oppositely charged poly(amido amine) (PAMAM) dendrimers of three different generations G4, G7 and G10. The force profiles were measured by the atomic force microscopy (AFM) based on multi-particle colloidal probe technique. Close to the isoelectric point, the measured force profiles were more attractive than the pure van der Waals interactions. This behavior was rationalized in term of an additional electrostatic patch-charge contribution whose magnitude increases by increasing the dendrimer generation. The aggregation rates were calculated from these results using the classical theory developed by Derjaguin, Landau, Verwey and Overbeek (DLVO) as well as including the additional attractive term and a radially symmetric force field. The calculated aggregation rates were compared to the ones obtained directly from time-resolved dynamic light scattering (DLS) measurements using exactly the same latex particles as in the AFM study. The results from these two methods were in good agreement in the case of dendrimers of lower generation, while at higher generation, significant differences were found. In the latter case, the stability ratio in the slow aggregation regime extracted from direct force measurements was much higher than the one measured experimentally by DLS. Despite the fact that the additional attractive term was included in the calculation, the discrepancy between the two different stability ratios suggests that the assumption of radial symmetric interaction is weak.
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Affiliation(s)
- Marco Finessi
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1205 Geneva, Switzerland
| | - Istvan Szilagyi
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1205 Geneva, Switzerland.
| | - Plinio Maroni
- Department of Inorganic and Analytical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1205 Geneva, Switzerland.
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40
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Raynal M, Ballester P, Vidal-Ferran A, van Leeuwen PWNM. Supramolecular catalysis. Part 2: artificial enzyme mimics. Chem Soc Rev 2013; 43:1734-87. [PMID: 24365792 DOI: 10.1039/c3cs60037h] [Citation(s) in RCA: 665] [Impact Index Per Article: 60.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The design of artificial catalysts able to compete with the catalytic proficiency of enzymes is an intense subject of research. Non-covalent interactions are thought to be involved in several properties of enzymatic catalysis, notably (i) the confinement of the substrates and the active site within a catalytic pocket, (ii) the creation of a hydrophobic pocket in water, (iii) self-replication properties and (iv) allosteric properties. The origins of the enhanced rates and high catalytic selectivities associated with these properties are still a matter of debate. Stabilisation of the transition state and favourable conformations of the active site and the product(s) are probably part of the answer. We present here artificial catalysts and biomacromolecule hybrid catalysts which constitute good models towards the development of truly competitive artificial enzymes.
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Affiliation(s)
- Matthieu Raynal
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007 Tarragona, Spain.
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41
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Kreye O, Kugele D, Faust L, Meier MAR. Divergent Dendrimer Synthesis via the Passerini Three-Component Reaction and Olefin Cross-Metathesis. Macromol Rapid Commun 2013; 35:317-22. [DOI: 10.1002/marc.201300779] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 10/31/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Oliver Kreye
- Laboratory of Applied Chemistry; Institute of Organic Chemistry; Karlsruhe Institute of Technology (KIT); Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Dennis Kugele
- Laboratory of Applied Chemistry; Institute of Organic Chemistry; Karlsruhe Institute of Technology (KIT); Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Lorenz Faust
- Laboratory of Applied Chemistry; Institute of Organic Chemistry; Karlsruhe Institute of Technology (KIT); Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Michael A. R. Meier
- Laboratory of Applied Chemistry; Institute of Organic Chemistry; Karlsruhe Institute of Technology (KIT); Fritz-Haber-Weg 6 76131 Karlsruhe Germany
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Kalhapure RS, Kathiravan MK, Akamanchi KG, Govender T. Dendrimers - from organic synthesis to pharmaceutical applications: an update. Pharm Dev Technol 2013; 20:22-40. [PMID: 24299011 DOI: 10.3109/10837450.2013.862264] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Dendrimers are a relatively new class of monodisperse polymers, which have tree-like spherical structures with well-defined sizes and shapes. Their unique structure has a significant impact on their physical and chemical properties. Research on dendrimers is of significant interest to scientists from all areas and their utility in various scientific fields, including pharmaceuticals, is expanding. The present review is comprehensive and covers different aspects of dendrimers viz. (1) synthesis, (2) properties and (3) pharmaceutical applications. The emphasis is on their applications as well as the current ongoing research status for drug targeting.
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Affiliation(s)
- Rahul S Kalhapure
- Discipline of Pharmaceutical Sciences, School of Health Sciences, University of KwaZulu-Natal , Durban , South Africa and
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43
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Filipe LCS, Machuqueiro M, Darbre T, Baptista AM. Unraveling the Conformational Determinants of Peptide Dendrimers Using Molecular Dynamics Simulations. Macromolecules 2013. [DOI: 10.1021/ma401574b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Luís C. S. Filipe
- Instituto de Tecnologia Química
e Biológica, Universidade Nova de Lisboa, Av. da República,
EAN, 2780-157 Oeiras, Portugal
| | - Miguel Machuqueiro
- Centro de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, C8, 1749-016 Lisboa, Portugal
| | - Tamis Darbre
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - António M. Baptista
- Instituto de Tecnologia Química
e Biológica, Universidade Nova de Lisboa, Av. da República,
EAN, 2780-157 Oeiras, Portugal
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44
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Kadam RU, Bergmann M, Garg D, Gabrieli G, Stocker A, Darbre T, Reymond JL. Structure-Based Optimization of the Terminal Tripeptide in Glycopeptide Dendrimer Inhibitors ofPseudomonas aeruginosaBiofilms Targeting LecA. Chemistry 2013; 19:17054-63. [DOI: 10.1002/chem.201302587] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 09/11/2013] [Indexed: 01/22/2023]
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45
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Wang L, Chen S. Construction of a peroxidase mimic based on hemin and PAMAM dendrimers. J Control Release 2013. [DOI: 10.1016/j.jconrel.2013.08.213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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46
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Mignani S, El Kazzouli S, Bousmina MM, Majoral JP. Dendrimer Space Exploration: An Assessment of Dendrimers/Dendritic Scaffolding as Inhibitors of Protein–Protein Interactions, a Potential New Area of Pharmaceutical Development. Chem Rev 2013; 114:1327-42. [DOI: 10.1021/cr400362r] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Serge Mignani
- Laboratoire de Chimie et de
Biochimie Pharmacologiques
et Toxicologiques, CNRS UMR 8601, Université Paris Descartes, Sorbonne Paris Cité, 45 rue des Saints Pères, 75006 Paris, France
| | - Saïd El Kazzouli
- Euro-Mediterranean University of Fez, Fès-Shore, Route de Sidi harazem, Fès, Morocco
| | - Mosto M. Bousmina
- Euro-Mediterranean University of Fez, Fès-Shore, Route de Sidi harazem, Fès, Morocco
- Hassan II Academy of Science and Technology, Avenue Mohammed
VI, 10222 Rabat, Morocco
| | - Jean-Pierre Majoral
- Laboratoire
de Chimie de Coordination, Centre National de la Recherche Scientifique, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
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47
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Levi N, Neumann R. Diastereoselective and Enantiospecific Direct Reductive Amination in Water Catalyzed by Palladium Nanoparticles Stabilized by Polyethyleneimine Derivatives. ACS Catal 2013. [DOI: 10.1021/cs4005453] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Noam Levi
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel 76100
| | - Ronny Neumann
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel 76100
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48
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Wang X, Zhang Y, Li T, Tian W, Zhang Q, Cheng Y. Generation 9 polyamidoamine dendrimer encapsulated platinum nanoparticle mimics catalase size, shape, and catalytic activity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:5262-70. [PMID: 23544351 DOI: 10.1021/la3046077] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Poly(amidoamine) (PAMAM) encapsulated platinum nanoparticles were synthesized and used as catalase mimics. Acetylated generation 9 (Ac-G9) PAMAM dendrimer with a molecular size around 10 nm was used as a template to synthesize platinum nanoparticles. The feeding molar ratio of Pt(4+) and Ac-G9 is 2048, and the synthesized platinum nanoparticle (Ac-G9/Pt NP) has an average size of 3.3 nm. Ac-G9/Pt NP has a similar molecular size and globular shape with catalase (~11 nm). The catalytic activity of Ac-G9/Pt NP on the decomposition of H2O2 is approaching that of catalase at 37 °C. Ac-G9/Pt NP shows differential response to the changes of pH and temperature compared with catalase, which can be explained by different catalytic mechanisms of Ac-G9/Pt NP and catalase. Ac-G9/Pt NP also shows horseradish peroxidase activity and is able to scavenge free radicals such as di(phenyl)-(2,4,6-trinitrophenyl)iminoazanium (DPPH). Furthermore, Ac-G9/Pt NP shows excellent biocompatibility on different cell lines and can down-regulate H2O2-induced intracellular reactive oxygen species (ROS) in these cells. These results suggest that dendrimers are promising mimics of proteins with different sizes and Ac-G9/Pt NP can be used as an alternative candidate of catalase to decrease oxidation stress in cells.
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Affiliation(s)
- Xinyu Wang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200062, People's Republic of China
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49
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Nandwana V, Samuel I, Cooke G, Rotello VM. Aromatic stacking interactions in flavin model systems. Acc Chem Res 2013; 46:1000-9. [PMID: 23163808 DOI: 10.1021/ar300132r] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Flavins feature multiple attributes that explain their widespread occurrence in nature, including photostability, reversible electrochemistry, and especially the tunability of their optical, electronic, and redox properties by supramolecular interactions and modification of their chemical structure. Flavins are important redox cofactors for enzymatic catalysis and are central to a wide variety of processes, including biosynthesis, electron transport, photosynthesis, and DNA repair. The wide range of processes catalyzed by flavins makes them promising leads for synthetic catalysts. Their properties are also relevant to organic electronic and optoelectronic devices, where they have the potential to serve as photoactive electron carriers, a very uncommon property in current photovoltaic systems. In flavoenzymes, the flavin cofactor binds to the active site of the apoenzyme through noncovalent interactions. These interactions regulate cofactor recognition and tune the redox behavior of the flavin cofactor. In this Account, we describe the creation of host-guest systems based on small molecule, polymer, and nanoparticle scaffolds that explore the role of aromatic stacking on the redox properties of the flavin and provide insight into flavoenzyme function. We also describe the creation of synthetic flavin-based interlocked structures featuring aromatic stacking interactions, along with the use of aromatic stacking to direct self-assembly of flavin-based materials. The interplay between redox events and aromatic stacking interactions seen in these synthetic models is important for fundamental understanding of biological systems including the flavoenzymes. The precise control of aromatic interactions and binding of flavins not only underpins their biological activity but gives them the potential to be developed into novel organic optoelectronic materials based on tuned synthetic flavin-receptor assemblies. In a broader context, the redox properties of the flavin provide a very concise tool for looking at the role of electronics in aromatic stacking, an issue of general importance in biological and supramolecular chemistry.
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Affiliation(s)
- Vikas Nandwana
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Ifor Samuel
- Organic Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews KY16 9NA, U.K
| | - Graeme Cooke
- Glasgow Centre for Physical Organic Chemistry, WestCHEM, School of Chemistry, University of Glasgow, Glasgow G12 8QQ, U.K
| | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, United States
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Reymond JL, Bergmann M, Darbre T. Glycopeptide dendrimers as Pseudomonas aeruginosa biofilm inhibitors. Chem Soc Rev 2013; 42:4814-22. [PMID: 23370573 DOI: 10.1039/c3cs35504g] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Synthetic glycopeptide dendrimers composed of a branched oligopeptide tree structure appended with glycosidic groups at its multiple N-termini were investigated for binding to the Pseudomonas aeruginosa lectins LecB and LecA. These lectins are partly responsible for the formation of antibiotic resistant biofilms in the human pathogenic bacterium P. aeruginosa, which causes lethal airway infections in immune-compromised and cystic fibrosis patients. Glycopeptide dendrimers with high affinity to the lectins were identified by screening of combinatorial libraries. Several of these dendrimers, in particular the LecB specific glycopeptide dendrimers FD2 and D-FD2 and the LecA specific glycopeptide dendrimers GalAG2 and GalBG2, also efficiently block P. aeruginosa biofilm formation and induce biofilm dispersal in vitro. Structure-activity relationship and structural studies are reviewed, in particular the observation that multivalency is essential to the anti-biofilm effect in these dendrimers.
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Affiliation(s)
- Jean-Louis Reymond
- Department of Chemistry and Biochemistry, University of Berne, Freistrasse 3, 3012 Berne, Switzerland.
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