1
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Barkale HV, Dey N. Functionalized cyanostilbene-based nano-AIEgens: multipoint binding interactions for improved sensing of gallic acid in real-life food samples. J Mater Chem B 2024. [PMID: 39140138 DOI: 10.1039/d4tb00905c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
Cyano-substituted stilbene (CSS) derivatives have been synthesized that can form luminescent nanoscopic assemblies in an aqueous medium. The optical properties of such materials, as governed by the relative ratios of their monomer and aggregated forms, are found to be susceptible to pH and temperature of the medium. The compound with boronic acid attached at the terminal positions shows a turn-on fluorescence response (LOD: 15.4 ppb) with gallic acid (GA). The mechanistic studies indicate that the 1,2-diol unit of GA is involved in ester formation with the boronic acid residue, while the carboxylic end engages in hydrogen bonding interaction with the nitrile unit. Such multi-point binding interaction provides better selectivity over other structurally similar analytes. Moreover, the distinct aggregation properties of such boronate ester derivatives are responsible for the GA-specific optical response. The sensory system has been utilized for the determination of the levels of GA derivatives in tea (green tea and black tea) and various fruit (mango, orange, guava, pomegranate) extracts. In all cases, the estimated values of GAE were found to be in the same range reported by others. Finally, low-cost, chemically-modified paper strips have been designed for rapid, on-location detection of GA.
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Affiliation(s)
- Harshal V Barkale
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India.
| | - Nilanjan Dey
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India.
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2
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Ribeiro LF, Babadopulos T, de Oliveira MG, Nishimaru F, Zatz R, Elias RM, Moraes O, Moraes E, Peterson LW, De Nucci G. A LC-MS/MS method for the simultaneous determination of 6-cyanodopamine, 6-nitrodopamine, 6-nitrodopa, 6-nitroadrenaline and 6-bromodopamine in human plasma and its clinical application in patients with chronic kidney disease. Biomed Chromatogr 2024; 38:e5896. [PMID: 38797868 DOI: 10.1002/bmc.5896] [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: 02/29/2024] [Revised: 04/22/2024] [Accepted: 05/06/2024] [Indexed: 05/29/2024]
Abstract
The aim of this study was to develop a high-performance liquid chromatography-tandem mass spectrometry method for the determination of 6-cyanodopamine, 6-nitrodopamine, 6-nitrodopa, 6-nitroadrenaline and 6-bromodopamine in human plasma samples. Strata-X 33 μm solid-phase extraction cartridges were used for the extraction of the catecholamines from human plasma samples. The catecholamines were separated in a 150 × 3 mm Shim-pack GIST C18-AQ column with 3 μm particle size, placed in an oven at 40°C and perfused with 82% mobile phase A (acetonitrile-H2O; 90:10, v/v) + 0.4% acetic acid and 18% mobile phase B (deionized H2O) + 0.2% formic acid at a flow rate of 340 μl/min in isocratic mode. The injected volume was 4 μl and the run lasted 4 min. The method was linear from 0.1 to 20 ng/ml and the lower limit of quantification was 0.1 ng/ml for all analytes. The method was applied to evaluate the plasma levels of catecholamines in plasma of patients with chronic kidney disease and allowed the detection for the first time of circulating levels of the novel catecholamines 6-bromodopamine and 6-cyanodopamine.
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Affiliation(s)
- Luiz Fernando Ribeiro
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, SP, Brazil
| | - Tainah Babadopulos
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, SP, Brazil
| | - Mariana G de Oliveira
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, SP, Brazil
- Division of Nephrology, Department of Internal Medicine, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | | | - Roberto Zatz
- Division of Nephrology, Department of Internal Medicine, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Rosilene Motta Elias
- Division of Nephrology, Department of Internal Medicine, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Odorico Moraes
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Elisabete Moraes
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Gilberto De Nucci
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, SP, Brazil
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará, Fortaleza, CE, Brazil
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
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3
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Xue T, Li Y, Torre M, Shao R, Han Y, Chen S, Lee D, Kohane DS. Polymeric Prodrugs using Dynamic Covalent Chemistry for Prolonged Local Anesthesia. Angew Chem Int Ed Engl 2024; 63:e202406158. [PMID: 38885607 DOI: 10.1002/anie.202406158] [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: 03/31/2024] [Indexed: 06/20/2024]
Abstract
Depot-type drug delivery systems are designed to deliver drugs at an effective rate over an extended period. Minimizing initial "burst" can also be important, especially with drugs causing systemic toxicity. Both goals are challenging with small hydrophilic molecules. The delivery of molecules such as the ultrapotent local anesthetic tetrodotoxin (TTX) exemplifies both challenges. Toxicity can be mitigated by conjugating TTX to polymers with ester bonds, but the slow ester hydrolysis can result in subtherapeutic TTX release. Here, we developed a prodrug strategy, based on dynamic covalent chemistry utilizing a reversible reaction between the diol TTX and phenylboronic acids. These polymeric prodrugs exhibited TTX encapsulation efficiencies exceeding 90 % and the resulting polymeric nanoparticles showed a range of TTX release rates. In vivo injection of the TTX polymeric prodrugs at the sciatic nerve reduced TTX systemic toxicity and produced nerve block lasting 9.7±2.0 h, in comparison to 1.6±0.6 h from free TTX. This approach could also be used to co-deliver the diol dexamethasone, which prolonged nerve block to 21.8±5.1 h. This work emphasized the usefulness of dynamic covalent chemistry for depot-type drug delivery systems with slow and effective drug release kinetics.
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Affiliation(s)
- Tianrui Xue
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, 02115, United States
| | - Yang Li
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, 02115, United States
| | - Matthew Torre
- Department of Pathology Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, 02115, United States
| | - Rachelle Shao
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, 02115, United States
| | - Yiyuan Han
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, 02115, United States
| | - Shuanglong Chen
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, 02115, United States
| | - Daniel Lee
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, 02115, United States
| | - Daniel S Kohane
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, 02115, United States
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4
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Terriac L, Helesbeux JJ, Maugars Y, Guicheux J, Tibbitt MW, Delplace V. Boronate Ester Hydrogels for Biomedical Applications: Challenges and Opportunities. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2024; 36:6674-6695. [PMID: 39070669 PMCID: PMC11270748 DOI: 10.1021/acs.chemmater.4c00507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 05/22/2024] [Accepted: 05/22/2024] [Indexed: 07/30/2024]
Abstract
Boronate ester (BE) hydrogels are increasingly used for biomedical applications. The dynamic nature of these molecular networks enables bond rearrangement, which is associated with viscoelasticity, injectability, printability, and self-healing, among other properties. BEs are also sensitive to pH, redox reactions, and the presence of sugars, which is useful for the design of stimuli-responsive materials. Together, BE hydrogels are interesting scaffolds for use in drug delivery, 3D cell culture, and biofabrication. However, designing stable BE hydrogels at physiological pH (≈7.4) remains a challenge, which is hindering their development and biomedical application. In this context, advanced chemical insights into BE chemistry are being used to design new molecular solutions for material fabrication. This review article summarizes the state of the art in BE hydrogel design for biomedical applications with a focus on the materials chemistry of this class of materials. First, we discuss updated knowledge in BE chemistry including details on the molecular mechanisms associated with BE formation and breakage. Then, we discuss BE hydrogel formation at physiological pH, with an overview of the main systems reported to date along with new perspectives. A last section covers several prominent biomedical applications of BE hydrogels, including drug delivery, 3D cell culture, and bioprinting, with critical insights on the design relevance, limitations and potential.
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Affiliation(s)
- Léa Terriac
- Nantes
Université, Oniris, CHU Nantes, INSERM, Regenerative Medicine and Skeleton,
RMeS, UMR 1229, F-44000 Nantes, France
| | | | - Yves Maugars
- Nantes
Université, Oniris, CHU Nantes, INSERM, Regenerative Medicine and Skeleton,
RMeS, UMR 1229, F-44000 Nantes, France
| | - Jérôme Guicheux
- Nantes
Université, Oniris, CHU Nantes, INSERM, Regenerative Medicine and Skeleton,
RMeS, UMR 1229, F-44000 Nantes, France
| | - Mark W. Tibbitt
- Macromolecular
Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland
| | - Vianney Delplace
- Nantes
Université, Oniris, CHU Nantes, INSERM, Regenerative Medicine and Skeleton,
RMeS, UMR 1229, F-44000 Nantes, France
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5
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Ollier RC, Webber MJ. Strain-Stiffening Mechanoresponse in Dynamic-Covalent Cellulose Hydrogels. Biomacromolecules 2024; 25:4406-4419. [PMID: 38847048 DOI: 10.1021/acs.biomac.4c00450] [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: 07/09/2024]
Abstract
Mechanical stimuli such as strain, force, and pressure are pervasive within and beyond the human body. Mechanoresponsive hydrogels have been engineered to undergo changes in their physicochemical or mechanical properties in response to such stimuli. Relevant responses can include strain-stiffening, self-healing, strain-dependent stress relaxation, and shear rate-dependent viscosity. These features are a direct result of dynamic bonds or noncovalent/physical interactions within such hydrogels. The contributions of various types of bonds and intermolecular interactions to these behaviors are important to more fully understand the resulting materials and engineer their mechanoresponsive features. Here, strain-stiffening in carboxymethylcellulose hydrogels cross-linked with pendant dynamic-covalent boronate esters using tannic acid is studied and modulated as a function of polymer concentration, temperature, and effective cross-link density. Furthermore, these materials are found to exhibit self-healing and strain-memory, as well as strain-dependent stress relaxation and shear rate-dependent changes in gel viscosity. These features are attributed to the dynamic nature of the boronate ester cross-links, interchain hydrogen bonding and bundling, or a combination of these two intermolecular interactions. This work provides insight into the interplay of such interactions in the context of mechanoresponsive behaviors, particularly informing the design of hydrogels with tunable strain-stiffening. The multiresponsive and tunable nature of this hydrogel system therefore presents a promising platform for a variety of applications.
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Affiliation(s)
- Rachel C Ollier
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Matthew J Webber
- Department of Chemical & Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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6
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Kousseff CJ, Wustoni S, Silva RKS, Lifer A, Savva A, Frey GL, Inal S, Nielsen CB. Single-Component Electroactive Polymer Architectures for Non-Enzymatic Glucose Sensing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308281. [PMID: 38520718 PMCID: PMC11251565 DOI: 10.1002/advs.202308281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/12/2024] [Indexed: 03/25/2024]
Abstract
Organic mixed ionic-electronic conductors (OMIECs) have emerged as promising materials for biological sensing, owing to their electrochemical activity, stability in an aqueous environment, and biocompatibility. Yet, OMIEC-based sensors rely predominantly on the use of composite matrices to enable stimuli-responsive functionality, which can exhibit issues with intercomponent interfacing. In this study, an approach is presented for non-enzymatic glucose detection by harnessing a newly synthesized functionalized monomer, EDOT-PBA. This monomer integrates electrically conducting and receptor moieties within a single organic component, obviating the need for complex composite preparation. By engineering the conditions for electrodeposition, two distinct polymer film architectures are developed: pristine PEDOT-PBA and molecularly imprinted PEDOT-PBA. Both architectures demonstrated proficient glucose binding and signal transduction capabilities. Notably, the molecularly imprinted polymer (MIP) architecture demonstrated faster stabilization upon glucose uptake while it also enabled a lower limit of detection, lower standard deviation, and a broader linear range in the sensor output signal compared to its non-imprinted counterpart. This material design not only provides a robust and efficient platform for glucose detection but also offers a blueprint for developing selective sensors for a diverse array of target molecules, by tuning the receptor units correspondingly.
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Affiliation(s)
| | - Shofarul Wustoni
- Organic Bioelectronics LaboratoryBiological and Environmental Science and EngineeringKing Abdullah University of Science and Technology (KAUST)Thuwal23955‐6900Saudi Arabia
| | - Raphaela K. S. Silva
- Organic Bioelectronics LaboratoryBiological and Environmental Science and EngineeringKing Abdullah University of Science and Technology (KAUST)Thuwal23955‐6900Saudi Arabia
| | - Ariel Lifer
- Department of Materials Science and EngineeringTechnion–Israel Institute of TechnologyHaifa32000Israel
| | - Achilleas Savva
- Bioelectronics SectionDepartment of MicroelectronicsFaculty of Electrical Engineering, Mathematics and Computer Science (EEMCS)Delft University of TechnologyDelft2628 CDThe Netherlands
| | - Gitti L. Frey
- Department of Materials Science and EngineeringTechnion–Israel Institute of TechnologyHaifa32000Israel
| | - Sahika Inal
- Organic Bioelectronics LaboratoryBiological and Environmental Science and EngineeringKing Abdullah University of Science and Technology (KAUST)Thuwal23955‐6900Saudi Arabia
| | - Christian B. Nielsen
- Department of ChemistryQueen Mary University of LondonMile End RoadLondonE1 4NSUK
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7
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Cordova-Chávez RI, Trujillo-Ferrara JG, Padilla-Martínez II, González-Espinosa H, Abad-García A, Farfán-García ED, Ortega-Camarillo C, Contreras-Ramos A, Soriano-Ursúa MA. One-Step Synthesis, Crystallography, and Acute Toxicity of Two Boron-Carbohydrate Adducts That Induce Sedation in Mice. Pharmaceuticals (Basel) 2024; 17:781. [PMID: 38931447 PMCID: PMC11206247 DOI: 10.3390/ph17060781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/08/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Boronic acids form diester bonds with cis-hydroxyl groups in carbohydrates. The formation of these adducts could impair the physical and chemical properties of precursors, even their biological activity. Two carbohydrate derivatives from d-fructose and d-arabinose and phenylboronic acid were synthesized in a straightforward one-step procedure and chemically characterized via spectroscopy and X-ray diffraction crystallography. Additionally, an acute toxicity test was performed to determine their lethal dose 50 (LD50) values by using Lorke's method. Analytical chemistry assays confirmed the formation of adducts by the generation of diester bonds with the β-d-pyranose of carbohydrates, including signals corresponding to the formation of new bonds, such as the stretching of B-O bonds. NMR spectra yielded information about the stereoselectivity in the synthesis reaction: Just one signal was found in the range for the anomeric carbon in the 13C NMR spectra of both adducts. The acute toxicity tests showed that the LD50 value for both compounds was 1265 mg/kg, while the effective dose 50 (ED50) for sedation was 531 mg/kg. However, differences were found in the onset and lapse of sedation. For example, the arabinose derivative induced sedation for more than 48 h at 600 mg/kg, while the fructose derivative induced sedation for less than 6 h at the same dose without the death of the mice. Thus, we report for the first time two boron-containing carbohydrate derivatives inducing sedation after intraperitoneal administration. They are bioactive and highly safe agents. Further biological evaluation is desirable to explore their medical applications.
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Affiliation(s)
- Ricardo Ivan Cordova-Chávez
- Laboratorio de Neurofisiología, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Mexico City 11340, Mexico; (R.I.C.-C.); (H.G.-E.); (A.A.-G.)
- Laboratorio de Bioquímica, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Mexico City 11340, Mexico;
| | - José G. Trujillo-Ferrara
- Laboratorio de Bioquímica, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Mexico City 11340, Mexico;
| | - Itzia I. Padilla-Martínez
- Laboratorio de Química Supramolecular y Nanociencias, Unidad Profesional Interdisciplinaria de Biotecnología, Instituto Politécnico Nacional, Av. Acueducto s/n, Barrio la Laguna Ticomán, Mexico City 07340, Mexico;
| | - Héctor González-Espinosa
- Laboratorio de Neurofisiología, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Mexico City 11340, Mexico; (R.I.C.-C.); (H.G.-E.); (A.A.-G.)
| | - Antonio Abad-García
- Laboratorio de Neurofisiología, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Mexico City 11340, Mexico; (R.I.C.-C.); (H.G.-E.); (A.A.-G.)
| | - Eunice D. Farfán-García
- Laboratorio de Bioquímica, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Mexico City 11340, Mexico;
| | - Clara Ortega-Camarillo
- Medical Research Unit in Biochemistry, Specialties Hospital, National Medical Center SXXI, Instituto Mexicano del Seguro Social, Av. Cuauhtémoc 330, Col. Doctores, Alc. Cuauhtémoc, Mexico City 06720, Mexico;
| | - Alejandra Contreras-Ramos
- Laboratory of Molecular Biology in the Congenital Malformations Unit, Children’s Hospital of Mexico Federico Gomez (HIMFG), Calle Dr. Marques 162, Col. Doctores, Alc. Cuahutémoc, Mexico City 06720, Mexico;
| | - Marvin A. Soriano-Ursúa
- Laboratorio de Neurofisiología, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Mexico City 11340, Mexico; (R.I.C.-C.); (H.G.-E.); (A.A.-G.)
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8
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Pogostin BH, Wu SX, Swierczynski MJ, Pennington C, Li SY, Vohidova D, Seeley EH, Agrawal A, Tang C, Cabler J, Dey A, Veiseh O, Nuermberger EL, Ball ZT, Hartgerink JD, McHugh KJ. Enhanced dynamic covalent chemistry for the controlled release of small molecules and biologics from a nanofibrous peptide hydrogel platform. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.21.595134. [PMID: 38826442 PMCID: PMC11142141 DOI: 10.1101/2024.05.21.595134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Maintaining safe and potent pharmaceutical drug levels is often challenging. Multidomain peptides (MDPs) assemble into supramolecular hydrogels with a well-defined, highly porous nanostructure that makes them attractive for drug delivery, yet their ability to extend release is typically limited by rapid drug diffusion. To overcome this challenge, we developed self-assembling boronate ester release (SABER) MDPs capable of engaging in dynamic covalent bonding with payloads containing boronic acids (BAs). As examples, we demonstrate that SABER hydrogels can prolong the release of five BA-containing small-molecule drugs as well as BA-modified insulin and antibodies. Pharmacokinetic studies revealed that SABER hydrogels extended the therapeutic effect of ganfeborole from days to weeks, preventing Mycobacterium tuberculosis growth better than repeated oral administration in an infection model. Similarly, SABER hydrogels extended insulin activity, maintaining normoglycemia for six days in diabetic mice after a single injection. These results suggest that SABER hydrogels present broad potential for clinical translation.
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9
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Salomón-Flores MK, Valdes-García J, Viviano-Posadas AO, Martínez-Otero D, Barroso-Flores J, Bazany-Rodríguez IJ, Dorazco-González A. Molecular two-point recognition of fructosyl valine and fructosyl glycyl histidine in water by fluorescent Zn(II)-terpyridine complexes bearing boronic acids. Dalton Trans 2024; 53:8692-8708. [PMID: 38700377 DOI: 10.1039/d4dt00260a] [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: 05/05/2024]
Abstract
Selective recognition of fructosyl amino acids in water by arylboronic acid-based receptors is a central field of modern supramolecular chemistry that impacts biological and medicinal chemistry. Fructosyl valine (FV) and fructosyl glycyl histidine (FGH) occur as N-terminal moieties of human glycated hemoglobin; therefore, the molecular design of biomimetic receptors is an attractive, but very challenging goal. Herein, we report three novel cationic Zn-terpyridine complexes bearing a fluorescent N-quinolinium nucleus covalently linked to three different isomers of strongly acidified phenylboronic acids (ortho-, 2Zn; meta-, 3Zn and para-, 4Zn) for the optical recognition of FV, FGH and comparative analytes (D-fructose, Gly, Val and His) in pure water at physiological pH. The complexes were designed to act as fluorescent receptors using a cooperative action of boric acid and a metal chelate. Complex 3Zn was found to display the most acidic -B(OH)2 group (pKa = 6.98) and exceptionally tight affinity for FV (K = 1.43 × 105 M-1) with a strong quenching analytical response in the micromolar concentration range. The addition of fructose and the other amino acids only induced moderate optical changes. On the basis of several spectroscopic tools (1H, 11B NMR, UV-Vis, and fluorescence titrations), ESI mass spectrometry, X-ray crystal structure, and DFT calculations, the interaction mode between 3Zn and FV is proposed in a 1 : 1 model through a cooperative two-point recognition involving a sp3 boronate-diol esterification with simultaneous coordination bonding of the carboxylate group of Val to the Zn atom. Fluorescence quenching is attributed to a static complexation photoinduced electron transfer mechanism as evidenced by lifetime experiments. The addition of FGH to 3Zn notably enhanced its emission intensity with micromolar affinity, but with a lower apparent binding constant than that observed for FV. FGH interacts with 3Zn through boronate-diol complexation and coordination of the imidazole ring of His. DFT-optimized structures of complexes 3Zn-FV and 3Zn-FGH show a picture of binding which shows that the Zn-complex has a suitable (B⋯Zn) distance to the two-point recognition with these analytes. Molecular recognition of fructosyl amino acids by transition-metal-based receptors has not been explored until now.
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Affiliation(s)
- María K Salomón-Flores
- Institute of Chemistry, National Autonomous University of Mexico, Ciudad Universitaria, 04510, CDMX, Mexico.
| | - Josue Valdes-García
- Institute of Chemistry, National Autonomous University of Mexico, Ciudad Universitaria, 04510, CDMX, Mexico.
| | - Alejandro O Viviano-Posadas
- Institute of Chemistry, National Autonomous University of Mexico, Ciudad Universitaria, 04510, CDMX, Mexico.
| | - Diego Martínez-Otero
- Institute of Chemistry, National Autonomous University of Mexico, Ciudad Universitaria, 04510, CDMX, Mexico.
- Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM, Carretera Toluca-Atlacomulco Km 14.5, C. P. 50200, Toluca, Estado de México, Mexico
| | - Joaquín Barroso-Flores
- Institute of Chemistry, National Autonomous University of Mexico, Ciudad Universitaria, 04510, CDMX, Mexico.
- Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM, Carretera Toluca-Atlacomulco Km 14.5, C. P. 50200, Toluca, Estado de México, Mexico
| | - Iván J Bazany-Rodríguez
- Institute of Chemistry, National Autonomous University of Mexico, Ciudad Universitaria, 04510, CDMX, Mexico.
| | - Alejandro Dorazco-González
- Institute of Chemistry, National Autonomous University of Mexico, Ciudad Universitaria, 04510, CDMX, Mexico.
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10
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Zhang M, Zhu C. Dynamic Hydrogels against Infections: From Design to Applications. Gels 2024; 10:331. [PMID: 38786248 PMCID: PMC11120666 DOI: 10.3390/gels10050331] [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: 04/12/2024] [Revised: 05/10/2024] [Accepted: 05/11/2024] [Indexed: 05/25/2024] Open
Abstract
Human defense against infection remains a global topic. In addition to developing novel anti-infection drugs, therapeutic drug delivery strategies are also crucial to achieving a higher efficacy and lower toxicity of these drugs for treatment. The application of hydrogels has been proven to be an effective localized drug delivery approach to treating infections without generating significant systemic adverse effects. The recent emerging dynamic hydrogels further show power as injectable formulations, giving new tools for clinical treatments. In this review, we delve into the potential applications of dynamic hydrogels in antibacterial and antiviral treatments and elaborate on their molecular designs and practical implementations. By outlining the chemical designs underlying these hydrogels, we discuss how the choice of dynamic chemical bonds affects their stimulus responsiveness, self-healing capabilities, and mechanical properties. Afterwards, we focus on how to endow dynamic hydrogels with anti-infection properties. By comparing different drug-loading methods, we highlight the advantages of dynamic chemical bonds in achieving sustained and controlled drug release. Moreover, we also include the design principles and uses of hydrogels that possess inherent anti-infective properties. Furthermore, we explore the design principles and applications of hydrogels with inherent anti-infective properties. Finally, we briefly summarize the current challenges faced by dynamic hydrogels and present a forward-looking vision for their future development. Through this review, we expect to draw more attention to these therapeutic strategies among scientists working with chemistry, materials, as well as pharmaceutics.
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Affiliation(s)
| | - Chongyu Zhu
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China;
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11
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Higaki Y, Maeda S, Miura Y. Impact of Zwitterions on the Acidity Constant and Glucose Sensitivity of Block Copolymers with Phenylboronic Acid. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:10355-10361. [PMID: 38688035 DOI: 10.1021/acs.langmuir.4c01075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Molecular assemblies that transform in response to pH and saccharide concentration are promising nanomaterials in the field of biomedicine, and polymeric micelles of amphiphilic polymers with phenylboronic acids (PBAs) have been studied. Herein, we report the impact of zwitterions on the acidity constant for the collapse and the glucose sensitivity of a polymeric micelle produced from a diblock copolymer comprising polyacrylamides with PBA and zwitterionic carboxybetaine (PAEBB-b-PCBAAm). The diblock copolymer was synthesized through reversible addition-fragmentation chain-transfer polymerization followed by deprotection. PAEBB-b-PCBAAm produced micellar aggregates in aqueous solutions at a neutral pH, and the polymeric micelles collapsed at a pH of 11.0 because the PBA transformed into a hydroxyboronate anion. The pKa decreased in the presence of glucose owing to boronate ester formation. The PCBAAm chain significantly increased the pH at which the molecular assemblies dissociated. This is probably because the pKa of boronic acid increased through the dipolar interaction of zwitterions, and/or the zwitterionic polymer corona is valid for screening of PBA ionization and electrostatic repulsion of boronate anions. This study on the modulation of pKa through the zwitterionic interaction can facilitate the molecular design of pH- and saccharide-responsive biomaterials.
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Affiliation(s)
- Yuji Higaki
- Faculty of Science and Technology, Oita University, 700 Dannoharu, Oita 870-1192, Japan
| | - Saya Maeda
- Graduate School of Engineering, Oita University, 700 Dannoharu, Oita 870-1192, Japan
| | - Yoshiko Miura
- Department of Chemical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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12
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Salerno G, Palladino P, Marelli M, Polito L, Minunni M, Berti D, Scarano S, Biagiotti G, Richichi B. CdSe/ZnS Quantum Rods (QRs) and Phenyl Boronic Acid BODIPY as Efficient Förster Resonance Energy Transfer (FRET) Donor-Acceptor Pair. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:794. [PMID: 38727388 PMCID: PMC11085751 DOI: 10.3390/nano14090794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/28/2024] [Accepted: 04/30/2024] [Indexed: 05/12/2024]
Abstract
The reversibility of the covalent interaction between boronic acids and 1,2- or 1,3-diols has put the spotlight on this reaction for its potential in the development of sensors and for the fishing of bioactive glycoconjugates. In this work, we describe the investigation of this reaction for the reversible functionalization of the surface of CdSe/ZnS Quantum Rods (QRs). With this in mind, we have designed a turn-off Förster resonance energy transfer (FRET) system that ensures monitoring the extent of the reaction between the phenyl boronic residue at the meso position of a BODIPY probe and the solvent-exposed 1,2-diols on QRs' surface. The reversibility of the corresponding boronate ester under oxidant conditions has also been assessed, thus envisioning the potential sensing ability of this system.
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Affiliation(s)
- Gianluca Salerno
- Department of Chemistry “Ugo Schiff”, University of Firenze, Via della Lastruccia 13, Sesto Fiorentino, 50019 Firenze, Italy
| | - Pasquale Palladino
- Department of Chemistry “Ugo Schiff”, University of Firenze, Via della Lastruccia 13, Sesto Fiorentino, 50019 Firenze, Italy
| | - Marcello Marelli
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” del Consiglio Nazionale delle Ricerche (SCITEC-CNR), Via G. Fantoli 16/15, 20138 Milan, Italy
| | - Laura Polito
- Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” del Consiglio Nazionale delle Ricerche (SCITEC-CNR), Via G. Fantoli 16/15, 20138 Milan, Italy
| | - Maria Minunni
- Department of Chemistry “Ugo Schiff”, University of Firenze, Via della Lastruccia 13, Sesto Fiorentino, 50019 Firenze, Italy
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Debora Berti
- Department of Chemistry “Ugo Schiff”, University of Firenze, Via della Lastruccia 13, Sesto Fiorentino, 50019 Firenze, Italy
| | - Simona Scarano
- Department of Chemistry “Ugo Schiff”, University of Firenze, Via della Lastruccia 13, Sesto Fiorentino, 50019 Firenze, Italy
| | - Giacomo Biagiotti
- Department of Chemistry “Ugo Schiff”, University of Firenze, Via della Lastruccia 13, Sesto Fiorentino, 50019 Firenze, Italy
| | - Barbara Richichi
- Department of Chemistry “Ugo Schiff”, University of Firenze, Via della Lastruccia 13, Sesto Fiorentino, 50019 Firenze, Italy
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13
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Radha R, Makhlouf Z, Diab R, Al-Sayah MH. Modifying cellulose fibres with carbon dots: a promising approach for the development of antimicrobial fibres. ROYAL SOCIETY OPEN SCIENCE 2024; 11:231755. [PMID: 38633350 PMCID: PMC11022000 DOI: 10.1098/rsos.231755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/27/2024] [Accepted: 02/27/2024] [Indexed: 04/19/2024]
Abstract
This study focuses on the development of antimicrobial fibres for use in medical and healthcare textile industries. Carbon dots (CDs) were designed with boronic acid groups for the attachment to cellulose fibres found in cotton textiles and to enhance their attachment to glycogens on bacterial surfaces. Boronic acid-based and curcumin-based CDs were prepared and characterized using various techniques, showing a nanoscale size and zeta potential values. The CDs inhibited the growth of both Staphylococcus epidermidis and Escherichia coli bacteria, with UV-activated CDs demonstrating improved antibacterial activity. The antimicrobial activity of the CDs was then tested, revealing strong adherence to cellulose paper fibres with no CD diffusion and potent inhibition of bacterial growth. Cytotoxicity assays on human cell lines showed no toxicity towards cells at concentrations of up to 100 µg ml-1 but exhibited increased toxicity at concentrations exceeding 1000 µg ml-1. However, CD-modified cellulose paper fibres showed no toxicity against human cell lines, highlighting the antimicrobial properties of the CD-modified cellulose fibres are safe for human use. These findings show promising potential for applications in both industrial and clinical settings.
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Affiliation(s)
- Remya Radha
- Department of Biology, Chemistry and Environmental Sciences, American University of Sharjah, Sharjah26666, United Arab Emirates
| | - Zinb Makhlouf
- Department of Biology, Chemistry and Environmental Sciences, American University of Sharjah, Sharjah26666, United Arab Emirates
| | - Rasha Diab
- Materials Science and Engineering Program, College of Arts and Sciences, American University of Sharjah, Sharjah26666, United Arab Emirates
| | - Mohammad H. Al-Sayah
- Department of Biology, Chemistry and Environmental Sciences, American University of Sharjah, Sharjah26666, United Arab Emirates
- Materials Science and Engineering Program, College of Arts and Sciences, American University of Sharjah, Sharjah26666, United Arab Emirates
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14
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Miki R, Yamaki T, Uchida M, Natsume H. Phenylboronate-salicylate ester cross-linked self-healing hydrogel composed of modified hyaluronan at physiological pH. SOFT MATTER 2024; 20:2926-2936. [PMID: 38466036 DOI: 10.1039/d3sm01417g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Several hydrogels with boronate/diol ester cross-linking have been reported. However, multiple synthetic steps or expensive reagents are required to modify some diol moieties into polymers. Therefore, diol-modified polymers, which are easily and inexpensively prepared via a single-step process, are required for the formation of boronate esters. This study reports a novel hydrogel composed of phenylboronic acid-modified hyaluronic acid and salicylic acid-modified hyaluronic acid. This hydrogel is injectable, can self-heal at physiological pH, and can be easily and inexpensively prepared. The polymer system behaved as a sol at pH 12.0 and a weak gel at pH 9.4 and 11.2, whereas it behaved as a gel over a wide pH range of 4.0-8.2. The viscoelasticity of the system decreased in response to sugar at pH 7.3. Thus, salicylic acid can be considered a promising diol moiety for hydrogel formation via boronate ester cross-linking.
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Affiliation(s)
- Ryotaro Miki
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan.
| | - Tsutomu Yamaki
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan.
| | - Masaki Uchida
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan.
| | - Hideshi Natsume
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan.
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15
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Zhang X, Wu S, Feng T, Yan Y, Wu S, Chen Y, Wang Y, Wang Q, Hu N, Wang L. Visualized sensing of erythritol using a simple enzyme-free catechol-based hydrogel film. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:1686-1696. [PMID: 38421030 DOI: 10.1039/d3ay02131a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Based on the versatile properties of bio-derived materials, non-enzymatic assays in combination with electronic devices have attracted increasing interest. Here, we report a novel enzyme-free visualization approach for the detection of erythritol, which is a zero-calorie natural sweetener and serves as an ideal sucrose substitute for diabetics or overweight people who need sugar control. The recognition element of the electrochemical biosensor was constructed by catechol modification on a chitosan-based hydrogel film. The signal transduction was achieved by the competitive binding assay of sweeteners. The results show that 2-fluorophenylboronic acid (FPBA) can form a cyclic boronate ester with the ortho-hydroxyls of both reduced catechol and oxidized quinone, impeding the electron transfer and leading to redox signal attenuation. The addition of sweeteners caused a competitive reaction resulting in bonding between the 1,2-diols and FPBA moieties, and in the recovery of the redox signals. Importantly, the pattern of redox signal changes of catechol can be detected optically, as the oxidized quinone state is darker in color than the reduced catechol state. Using a simple cell phone imaging application, we demonstrate that erythritol can be distinguished from other sweeteners in real samples using the oxidized catechol-Chit0/agarose hydrogel film. Thus, we envision that this method could allow diabetics and people who need to control their sugar intake to detect whether the product contains only erythritol in the field or at home. In addition, this work further illustrates the potential of bio-derived materials for performing redox-based functions and enzyme-free visualization assays.
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Affiliation(s)
- Xinyue Zhang
- College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Si Wu
- College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
- Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Tao Feng
- College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
- Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Yuanhao Yan
- College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Shijing Wu
- College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Yinyu Chen
- College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Yu Wang
- College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Qingmiao Wang
- College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Ning Hu
- College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Li Wang
- College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
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16
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Le HT, Mahara A, Fukazawa K, Nagasaki T, Yamaoka T. Widely distributable and retainable in-situ gelling material for treating myocardial infarction. Acta Biomater 2024; 176:221-233. [PMID: 38242190 DOI: 10.1016/j.actbio.2024.01.013] [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: 10/10/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/21/2024]
Abstract
Intramyocardial hydrogel injection is a promising therapy to prevent negative remodeling following myocardial infarction (MI). In this study, we report a mechanism for in-situ gel formation without external stimulation, resulting in an injectable and tissue-retainable hydrogel for MI treatment, and investigate its therapeutic outcomes. A liquid-like polymeric solution comprising poly(3-acrylamidophenylboronic acid-co-acrylamide) (BAAm), polyvinyl alcohol (PVA), and sorbitol (S) increases the viscous modulus by reducing the pre-added sorbitol concentration is developed. This solution achieves a sol-gel transition in-vitro in heart tissue by spontaneously diffusing the sorbitol. After intramyocardial injection, the BAAm/PVA/S with lower initial viscous modulus widely spreads in the myocardium and gelate compared to a viscoelastic alginate (ALG) hydrogel and is retained longer than the BAAm/S solution. Serial echocardiogram analyses prove that injecting the BAAm/PVA/S into the hearts of subacute MI rats significantly increases the fraction shortening and ejection shortening and attenuates the expansion of systolic LV diameter for up to 21 d after injection compared to the saline injection as a control, but the ALG injection does not. In addition, histological evaluation shows that only the BAAm/PVA/S decreases the infarct size and increases the wall thickness 21 d after injection. The BAAm/PVA/S intramyocardial injection is better at restraining systolic ventricular dilatation and cardiac failure in the rat MI model than in the control groups. Our findings highlight an effective injectable hydrogel therapy for MI by optimizing injectability-dependent distribution and retention of injected material. STATEMENT OF SIGNIFICANCE: In-situ gelling material is a promising strategy for intramyocardial hydrogel injection therapy for myocardial infarction (MI). Since the sol-gel transition of reported materials is driven by external stimulation such as temperature, pH, or ultraviolet, their application in vivo remains challenging. In this study, we first reported a synthetic in-situ gelling material (BAAm/PVA/S) whose gelation is stimulated by spontaneously reducing pre-added sorbitol after contacting the heart tissue. The BAAm/PVA/S solution spreads evenly, and is retained for at least 21 d in the heart tissue. Our study demonstrated that intramyocardial injection of the BAAm/PVA/S with more extensive distribution and longer retention had better effects on preventing LV dilation and improving cardiac function after MI than that of viscoelastic ALG and saline solution. We expect that these findings provide fundamental information for the optimum design of injectable biomaterials for treating MI.
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Affiliation(s)
- Hue Thi Le
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, 6-1 Kishibe Shimmachi, Suita, Osaka 564-8565, Japan; Department of Physiology, Hanoi Medical University, Hanoi 10000, Vietnam
| | - Atsushi Mahara
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, 6-1 Kishibe Shimmachi, Suita, Osaka 564-8565, Japan
| | - Kyoko Fukazawa
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, 6-1 Kishibe Shimmachi, Suita, Osaka 564-8565, Japan
| | - Takeshi Nagasaki
- Department of Applied Chemistry and Bioengineering, Graduate School of Engineering, Osaka Metropolitan University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Tetsuji Yamaoka
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, 6-1 Kishibe Shimmachi, Suita, Osaka 564-8565, Japan; Department of Clinical Engineering, Faculty of Health Sciences, Komatsu University, He 14-1, Mukai-motoori-machi, Komatsu, Ishikawa 923-0961, Japan.
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17
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Chou TC, Hu YL, Xie GC, Jiang JC, Peng LY, Tsai HC, Yao CT, Tsai YJ, Huang TY, Hu JW, Chen YC, Tsai MY, Chen YW, Pan PS. The use of multicomponent reactions in the development of bis-boronic acids for the detection of β-sialic acid. Org Biomol Chem 2024; 22:1639-1645. [PMID: 38180439 DOI: 10.1039/d3ob01877f] [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: 01/06/2024]
Abstract
Sialic acid (SA) is a naturally occurring monosaccharide found in glycoproteins and glycolipids. Changes in the expression of SA are associated with several diseases; thus, the detection of SA is of great significance for biological research, cancer diagnosis, and treatment. Boronic acid analogs have emerged as a promising tool for detecting sugars such as SA due to its reversible covalent bonding ability. In this study, 11 bis-boronic acid compounds and 2 mono-boronic acid compounds were synthesized via a highly efficient Ugi-4CR strategy. The synthesized compounds were subjected to affinity fluorescence binding experiments to evaluate their binding capability to SA. Compound A1 was shown to have a promising binding constant of 2602 ± 100 M-1 at pH = 6.0. Density Functional Theory (DFT) calculations examining the binding modes between A1 and SA indicated that the position of the boronic acid functional group was strongly correlated with its interaction with SA's α-hydroxy acid unit. The DFT calculations were consistent with the observations from the fluorescence experiments, demonstrating that the number and relative positions of the boronic acid functional groups are critical factors in enhancing the binding affinity to SA. DFT calculations of both S and R configuration of A1 indicated that the effect of the S/R configuration of A1 on its binding with β-sialic acid was insignificant as the Ugi-4CR generated racemic products. A fluorine atom was incorporated into the R2 substituent of A1 as an electron-withdrawing group to produce A5, which possessed a significantly higher capability to bind to SA (Keq = 7015 ± 5 M-1 at pH = 6.0). Finally, A1 and A5 were shown to possess exceptional binding selectivity toward β-sialic acid under pH of 6.0 and 6.5 while preferring to bind with glucose, fructose, and galactose under pH of 7.0 and 7.5.
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Affiliation(s)
- Tzu-Ching Chou
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
| | - Ying-Li Hu
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Guan-Cheng Xie
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Jyh-Chiang Jiang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Liang-Ying Peng
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
| | - Hsiao-Chun Tsai
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
| | - Chiao-Tien Yao
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
| | - Yi-Jie Tsai
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
| | - Ting-Yu Huang
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
| | - Jing-Wen Hu
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
| | - Yi-Ching Chen
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
| | - Min-Yeh Tsai
- Department of Chemistry and Biochemistry, National Chung Cheng University, Minhsiung, Taiwan
| | - Yi-Wei Chen
- Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Po-Shen Pan
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City, Tamsui Dist., Taiwan.
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18
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Chatterjee S, Chowdhury A, Saproo S, Mani Tripathi N, Naidu S, Bandyopadhyay A. Capturing Sialyl-glycan on Live Cancer Cells by Tailored Boronopeptide. Chemistry 2024; 30:e202303327. [PMID: 38051420 DOI: 10.1002/chem.202303327] [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: 10/10/2023] [Revised: 11/20/2023] [Accepted: 12/05/2023] [Indexed: 12/07/2023]
Abstract
Boronic acid-containing molecules are substantially popularized in chemical biology and medicinal chemistry due to the broad spectrum of covalent conjugations as well as interaction modules offered by the versatile boron atom. Apparently, the WGA peptide (wheat germ agglutinin, 62-73), which shows a considerably low binding affinity to sialic acid, turned into a selective and >5 folds potent binder with the aid of a suitable boronic acid probe installed chemoselectively. In silico studies prompted us to install BA probes on the cysteine residue, supposedly located in close proximity to the bound sialic acid. In vitro studies revealed that the tailored boronopeptides show enhanced binding ability due to the synergistic recognition governed by selective non-covalent interactions and cis-diol boronic acid conjugation. The intense binding is observed even in 10 % serum, thus enabling profiling of sialyl-glycan on cancer cells, as compared with the widely used lectin, Sambucus nigra. The synergistic binding mode between the best boronopeptide (P3) binder and sialic acid was analyzed via 1 H and 11 B NMR.
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Affiliation(s)
- Saurav Chatterjee
- Biomimetic Peptide Engineering Laboratory, Department of Chemistry, Indian Institute of Technology Ropar, 140001, Rupnagar, Punjab, India
| | - Arnab Chowdhury
- Biomimetic Peptide Engineering Laboratory, Department of Chemistry, Indian Institute of Technology Ropar, 140001, Rupnagar, Punjab, India
| | - Sheetanshu Saproo
- Department of Biomedical Engineering, Department of Chemistry, Indian Institute of Technology Ropar, 140001, Rupnagar, Punjab, India
| | - Nitesh Mani Tripathi
- Biomimetic Peptide Engineering Laboratory, Department of Chemistry, Indian Institute of Technology Ropar, 140001, Rupnagar, Punjab, India
| | - Srivatsava Naidu
- Department of Biomedical Engineering, Department of Chemistry, Indian Institute of Technology Ropar, 140001, Rupnagar, Punjab, India
| | - Anupam Bandyopadhyay
- Biomimetic Peptide Engineering Laboratory, Department of Chemistry, Indian Institute of Technology Ropar, 140001, Rupnagar, Punjab, India
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19
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Xian S, Xiang Y, Liu D, Fan B, Mitrová K, Ollier RC, Su B, Alloosh MA, Jiráček J, Sturek M, Alloosh M, Webber MJ. Insulin-Dendrimer Nanocomplex for Multi-Day Glucose-Responsive Therapy in Mice and Swine. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2308965. [PMID: 37994248 DOI: 10.1002/adma.202308965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/27/2023] [Indexed: 11/24/2023]
Abstract
The management of diabetes in a manner offering autonomous insulin therapy responsive to glucose-directed need, and moreover with a dosing schedule amenable to facile administration, remains an ongoing goal to improve the standard of care. While basal insulins with reduced dosing frequency, even once-weekly administration, are on the horizon, there is still no approved therapy that offers glucose-responsive insulin function. Herein, a nanoscale complex combining both electrostatic- and dynamic-covalent interactions between a synthetic dendrimer carrier and an insulin analogue modified with a high-affinity glucose-binding motif yields an injectable insulin depot affording both glucose-directed and long-lasting insulin availability. Following a single injection, it is even possible to control blood glucose for at least one week in diabetic swine subjected to daily oral glucose challenges. Measurements of serum insulin concentration in response to challenge show increases in insulin corresponding to elevated blood glucose levels, an uncommon finding even in preclinical work on glucose-responsive insulin. Accordingly, the subcutaneous nanocomplex that results from combining electrostatic- and dynamic-covalent interactions between a modified insulin and a synthetic dendrimer carrier affords a glucose-responsive insulin depot for week-long control following a single routine injection.
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Affiliation(s)
- Sijie Xian
- Department of Chemical & Biomolecular Engineering, 105 McCourtney Hall, Notre Dame, IN, 46556, USA
| | - Yuanhui Xiang
- Department of Chemical & Biomolecular Engineering, 105 McCourtney Hall, Notre Dame, IN, 46556, USA
| | - Dongping Liu
- Department of Chemical & Biomolecular Engineering, 105 McCourtney Hall, Notre Dame, IN, 46556, USA
| | - Bowen Fan
- Department of Chemical & Biomolecular Engineering, 105 McCourtney Hall, Notre Dame, IN, 46556, USA
| | - Katarína Mitrová
- Czech Academy of Sciences, Institute of Organic Chemistry and Biochemistry, Prague, 16610, Czech Republic
| | - Rachel C Ollier
- Department of Chemical & Biomolecular Engineering, 105 McCourtney Hall, Notre Dame, IN, 46556, USA
| | - Bo Su
- Department of Chemical & Biomolecular Engineering, 105 McCourtney Hall, Notre Dame, IN, 46556, USA
| | | | - Jiří Jiráček
- Czech Academy of Sciences, Institute of Organic Chemistry and Biochemistry, Prague, 16610, Czech Republic
| | | | | | - Matthew J Webber
- Department of Chemical & Biomolecular Engineering, 105 McCourtney Hall, Notre Dame, IN, 46556, USA
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20
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Kiemde AF, Marin J, Flexer V, Chagnes A. Liquid-liquid extraction of boron from continental brines by 2-butyl-1-octanol diluted in kerosene. RSC Adv 2024; 14:2170-2181. [PMID: 38213977 PMCID: PMC10777099 DOI: 10.1039/d3ra08045e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 12/30/2023] [Indexed: 01/13/2024] Open
Abstract
Lithium production from brines generates significant quantities of salts, including boron, that are not effectively utilized and end up being stored in landfills. This study delves into a novel approach for directly extracting boron from native brines without performing solar evaporation as an alternative to traditional methods based on boron extraction from ores, offering a sustainable route to producing boric acid or borax. By exploring factors such as 2-butyl-1-octanol concentration, phase volume ratio, temperature, and pH, the research scrutinizes boron extraction efficiency from two native brines sourced from the salar de Hombre Muerto in Argentina, alongside a synthetic brine simulating these native compositions. Notably, the extractant demonstrates exceptional promise due to its limited solubility in the brine, measuring at just 18 mg L-1. Optimal conditions-2 mol L-1 2-butyl-1-octanol, O/A ratio of 4, 25 °C temperature, and pH of 5.5-resulted in a remarkable 98.2% and 94.2% recovery of boron from synthetic and native brines, respectively. Importantly, this extraction process showcased minimal co-extraction of lithium, calcium, magnesium, potassium, and sodium. Leveraging these findings, a proposed flowsheet outlines a highly selective method for extracting boron from brines, presenting an alternative avenue to conventional borax production from boron ores.
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Affiliation(s)
| | - Jérôme Marin
- Université de Lorraine, CNRS, GeoRessources F-54000 Nancy France
| | - Victoria Flexer
- CIDMEJu, CONICET - Universidad Nacional de Jujuy Jujuy Argentina
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21
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Vargas RD, Ding Y, Trial HO, Qian R, Ball ZT. Polyol recognition in catalysis: toward selective modification of glycosylated polypeptides with boronic acid-rhodium(II) catalysts. Chem Commun (Camb) 2023; 59:13030-13033. [PMID: 37842954 DOI: 10.1039/d3cc03371f] [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: 10/17/2023]
Abstract
Proximity-induced methodologies for peptide and protein modification have been developed using recognition elements like inhibitors, antibodies, or affinity tags on amino acids. However, the recognition of saccharides for chemical modification remains widely unexplored. Studies exploring boronic acids and their derivatives have shown their alluring capabilities as selective molecular recognition elements for saccharides, and in this study we describe the application of these ideas to the discovery of a catalytic proximity-induced methodology for covalent modification of glycopeptides using boronic acids as a saccharide recognition element.
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Affiliation(s)
- Reyner D Vargas
- Department of Chemistry, Rice University, Houston, Texas 77005, USA.
| | - Yuxuan Ding
- Department of Chemistry, Rice University, Houston, Texas 77005, USA.
| | - Hallie O Trial
- Department of Chemistry, Rice University, Houston, Texas 77005, USA.
| | - Rouyu Qian
- Department of Chemistry, Rice University, Houston, Texas 77005, USA.
| | - Zachary T Ball
- Department of Chemistry, Rice University, Houston, Texas 77005, USA.
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22
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Zamora-Moreno J, Salomón-Flores MK, Valdes-García J, Pinzón-Vanegas C, Martínez-Otero D, Barroso-Flores J, Villamil-Ramos R, Romero-Solano MÁ, Dorazco-González A. Water-soluble fluorescent chemosensor for sorbitol based on a dicationic diboronic receptor. Crystal structure and spectroscopic studies. RSC Adv 2023; 13:32185-32198. [PMID: 37920759 PMCID: PMC10619626 DOI: 10.1039/d3ra06198a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 10/24/2023] [Indexed: 11/04/2023] Open
Abstract
Selective recognition of saccharides by phenylboronic dyes capable of functioning in aqueous conditions is a central topic of modern supramolecular chemistry that impacts analytical sciences and biological chemistry. Herein, a new dicationic diboronic acid structure 11 was synthesized, structurally described by single-crystal X-ray diffraction, and studied in-depth as fluorescent receptor for six saccharides in pure water at pH = 7.4. This dicationic receptor 11 has been designed particularly to respond to sorbitol and involves two convergent and strongly acidified phenyl boronic acids, with a pKa of 6.6, that operate as binding sites. The addition of sorbitol in the micromolar concentration range to receptor 11 induces strong fluorescence change, but in the presence of fructose, mannitol, glucose, lactose and sucrose, only moderate optical changes are observed. This change in emission is attributed to a static complexation photoinduced electron transfer mechanism as evidenced by lifetime experiments and different spectroscopic tools. The diboronic receptor has a high affinity/selectivity to sorbitol (K = 31 800 M-1) over other saccharides including common interfering species such as mannitol and fructose. The results based on 1H, 11B NMR spectroscopy, high-resolution mass spectrometry and density functional theory calculations, support that sorbitol is efficiently bound to 11 in a 1 : 1 mode involving a chelating diboronate-sorbitol complexation. Since the experimental B⋯B distance (5.3 Å) in 11 is very close to the calculated distance from the DFT-optimized complex with sorbitol, the efficient binding is attributed to strong acidification and preorganization of boronic acids. These results highlight the usefulness of a new diboronic acid receptor with a strong ability for fluorescent recognition of sorbitol in physiological conditions.
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Affiliation(s)
- Julio Zamora-Moreno
- Institute of Chemistry, National Autonomous University of Mexico, Ciudad Universitaria México 04510 Mexico
| | - María K Salomón-Flores
- Institute of Chemistry, National Autonomous University of Mexico, Ciudad Universitaria México 04510 Mexico
| | - Josue Valdes-García
- Institute of Chemistry, National Autonomous University of Mexico, Ciudad Universitaria México 04510 Mexico
| | - Cristian Pinzón-Vanegas
- Institute of Chemistry, National Autonomous University of Mexico, Ciudad Universitaria México 04510 Mexico
| | - Diego Martínez-Otero
- Institute of Chemistry, National Autonomous University of Mexico, Ciudad Universitaria México 04510 Mexico
- Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM, Instituto de Química, Universidad Nacional Autónoma de México C. P. 50200 Toluca Estado de México Mexico
| | - Joaquín Barroso-Flores
- Institute of Chemistry, National Autonomous University of Mexico, Ciudad Universitaria México 04510 Mexico
- Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM, Instituto de Química, Universidad Nacional Autónoma de México C. P. 50200 Toluca Estado de México Mexico
| | - Raúl Villamil-Ramos
- Centro de Investigaciones Químicas-IICBA, Universidad Autónoma del Estado de Morelos Av. Universidad 1001 Col. Chamilpa Cuernavaca Morelos C.P. 62209 Mexico
| | - Miguel Á Romero-Solano
- Institute of Chemistry, National Autonomous University of Mexico, Ciudad Universitaria México 04510 Mexico
| | - Alejandro Dorazco-González
- Institute of Chemistry, National Autonomous University of Mexico, Ciudad Universitaria México 04510 Mexico
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23
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Cai Y, Fu X, Zhou Y, Lei L, Wang J, Zeng W, Yang Z. A hydrogel system for drug loading toward the synergistic application of reductive/heat-sensitive drugs. J Control Release 2023; 362:409-424. [PMID: 37666303 DOI: 10.1016/j.jconrel.2023.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/06/2023]
Abstract
The preparation of hydrogels as drug carriers via radical-mediated polymerization has significant prospects, but the strong oxidizing ability of radicals and the high temperatures generated by the vigorous reactions limits the loading for reducing/heat-sensitive drugs. Herein, an applicable hydrogel synthesized by radical-mediated polymerization is reported for the loading and synergistic application of specific drugs. First, the desired sol is obtained by polymerizing functional monomers using a radical initiator, and then tannic-acid-assisted specific drug mediates sol-branched phenylboric acid group to form the required functional hydrogel (New-gel). Compared with the conventional single-step radical-mediated drug-loading hydrogel, the New-gel not only has better chemical/physical properties but also efficiently loads and releases drugs and maintains drug activity. Particularly, the New-gel has excellent loading capacity for oxygen, and exhibits significant practical therapeutic effects for diabetic wound repair. Furthermore, owing to its high light transmittance, the New-gel synergistically promotes the antibacterial effect of photosensitive drugs. This gelation strategy for loading drugs has further promising biomedical applications.
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Affiliation(s)
- Yucen Cai
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China
| | - Xiaoxue Fu
- Department of Orthopedic Surgery and Orthopedic Research Institution, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Yingjuan Zhou
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China
| | - Lin Lei
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China
| | - Jiajia Wang
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China
| | - Weinan Zeng
- Department of Orthopedic Surgery and Orthopedic Research Institution, West China Hospital, Sichuan University, Chengdu 610041, PR China.
| | - Zhangyou Yang
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, Chongqing Pharmacodynamic Evaluation Engineering Technology Research Center, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China.
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24
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Ran Z, Wang X, Zhang L, Yang Y, Shang Z, Chen Q, Ma X, Qian Z, Liu W. Enzymatic colorimetric method for turn-on determination of l-lactic acid through indicator displacement assay. J Biosci Bioeng 2023; 136:159-165. [PMID: 37344280 DOI: 10.1016/j.jbiosc.2023.06.001] [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: 01/07/2023] [Revised: 05/29/2023] [Accepted: 06/01/2023] [Indexed: 06/23/2023]
Abstract
l-Lactic acid is a natural α-hydroxy carboxylic acid and is commonly used as an addictive. Quantitation of l-lactic acid is indispensable in food and cosmetic industries. An enzymatic colorimetric method was developed for the determination of l-lactic acid by competitive indicator displacement assay. Boric acid inhibited the colorimetric reaction of l-3,4-dihydroxyphenylalanine (l-DOPA) catalyzed by tyrosinase. l-Lactic acid competitively displaced and released l-DOPA bound with boric acid to serve as substrate, and thus restored the tyrosinase activity. Recovery of color reaction could be spectrophotometrically determined at 475 nm and was proportional to the amount of l-lactic acid. A calibration curve between l-lactic acid concentration and recovery of absorbance were built. The concentration range of the l-lactic acid was 0.25-2.25 mM. The limit of detection (LOD) and the limit of quantification (LOQ) for l-lactic acid was estimated to be 0.05 mM and 0.16 mM, respectively. The method achieved turn-on and visual sensing with good precision, accuracy, specificity, and robustness. The assay method exhibited a promising prospect to determine the content of l-lactic acid in foods and cosmetics.
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Affiliation(s)
- Zhaoqi Ran
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xiawen Wang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Ling Zhang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Yang Yang
- Emergency Department, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610065, China
| | - Zhongtao Shang
- Department of Chemical Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Qinfei Chen
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xiaochen Ma
- Department of Computer Science, School of Computer Science, Sichuan University, Chengdu 610065, China
| | - Zhuoqun Qian
- Department of Automation, School of Electrical Engineering, Sichuan University, Chengdu 610065, China
| | - Wenbin Liu
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
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25
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Kawada M, Jo H, Medina AM, Sim S. Catalytic Materials Enabled by a Programmable Assembly of Synthetic Polymers and Engineered Bacterial Spores. J Am Chem Soc 2023; 145:16210-16217. [PMID: 37458997 DOI: 10.1021/jacs.3c05153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Natural biological materials are formed by self-assembly processes and catalyze a myriad of reactions. Here, we report a programmable molecular assembly of designed synthetic polymers with engineered bacterial spores. This self-assembly process is driven by dynamic covalent bond formation on spore surface glycan and yields macroscopic materials that are structurally stable, self-healing, and recyclable. Molecular programming of polymer species shapes the physical properties of these materials while metabolically dormant spores allow for prolonged ambient storage. Incorporation of spores with genetically encoded functionalities enables operationally simple and repeated enzymatic catalysis. Our work combines molecular and genetic engineering to offer scalable and programmable synthesis of robust materials for sustainable biocatalysis.
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Affiliation(s)
- Masamu Kawada
- Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
| | - Hyuna Jo
- Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
| | - Alexis M Medina
- Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
| | - Seunghyun Sim
- Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
- Department of Chemical and Biomolecular Engineering, University of California Irvine, Irvine, California 92697, United States
- Department of Biomedical Engineering, University of California Irvine, Irvine, California 92697, United States
- Center for Complex and Active Materials, University of California Irvine, Irvine, California 92697, United States
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26
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Gui W, Giardina SF, Balzarini M, Barany F, Kodadek T. Reversible Assembly of Proteolysis Targeting Chimeras. ACS Chem Biol 2023; 18:1582-1593. [PMID: 37422908 DOI: 10.1021/acschembio.3c00199] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
PROteolysis TArgeting Chimeras (PROTACs) are of significant current interest for the development of probe molecules and drug leads. However, they suffer from certain limitations. PROTACs are rule-breaking molecules with sub-optimal cellular permeability, solubility, and other drug-like properties. In particular, they exhibit an unusual dose-response curve where high concentrations of the bivalent molecule inhibit degradation activity, a phenomenon known as the hook effect. This will likely complicate their use in vivo. In this study, we explore a novel approach to create PROTACs that do not exhibit a hook effect. This is achieved by equipping the target protein and E3 ubiquitin ligase ligands with functionalities that undergo rapid and reversible covalent assembly in cellulo. We report the development of Self-Assembled Proteolysis Targeting Chimeras that mediate the degradation of the Von Hippel-Lindau E3 ubiquitin ligase and do not evince a hook effect.
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Affiliation(s)
- Weijun Gui
- Department of Chemistry, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, 120 Scripps Way, Jupiter, Florida 33458, United States
| | - Sarah F Giardina
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, New York 10065, United States
| | - Madeline Balzarini
- Department of Chemistry, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, 120 Scripps Way, Jupiter, Florida 33458, United States
| | - Francis Barany
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, New York 10065, United States
| | - Thomas Kodadek
- Department of Chemistry, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, 120 Scripps Way, Jupiter, Florida 33458, United States
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27
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Lyons S, Baile Pomares P, Vidal L, McGarry K, Morrin A, Brougham DF. Surface Potential Modulation in Boronate-Functionalized Magnetic Nanoparticles Reveals Binding Interactions: Toward Magnetophoretic Capture/Quantitation of Sugars from Extracellular Matrix. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023. [PMID: 37235552 DOI: 10.1021/acs.langmuir.3c00462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Phenylboronic acids (BAs) are important synthetic receptors that bind reversibly to cis-diols enabling their use in molecular sensing. When conjugated to magnetic iron oxide nanoparticles, BAs have potential for application in separations and enrichment. Realizing this will require a new understanding of their inherent binding modes and measurement of their binding capacity and their stability in/extractability from complex environments. In this work, 3-aminophenylboronic acid was functionalized to superparamagnetic iron oxide nanoparticles (MNPs, core diameter 8.9 nm) to provide stable aqueous suspensions of functionalized particles (BA-MNPs). The progress of sugar binding and its impact on BA-MNP colloidal stability were monitored through the pH-dependence of hydrodynamic size and zeta potential during incubation with a range of saccharides. This provided the first direct observation of boronate ionization pKa in grafted BA, which in the absence of sugar shifted to a slightly more basic pH than free BA. On exposure to sugar solutions under MNP-limiting conditions, pKa moved progressively to lower pH as maximum capacity was gradually attained. The pKa shift is shown to be greater for sugars with greater BA binding affinity, and on-particle sugar exchange effects were inferred. Colloidal dispersion of BA-MNPs after binding was shown for all sugars at all pHs studied, which enabled facile magnetic extraction of glucose from agarose and cultured extracellular matrix expanded in serum-free media. Bound glucose, quantified following magnetophoretic capture, was found to be proportional to the solution glucose content under glucose-limiting conditions expected for the application. The implications for the development of MNP-immobilized ligands for selective magnetic biomarker capture and quantitation from the extracellular environment are discussed.
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Affiliation(s)
- Stephen Lyons
- SFI Insight Centre for Data Analytics; National Centre for Sensor Research; School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
| | - Paola Baile Pomares
- Departamento de Química Analítica, Nutrición y Bromatología, Instituto Universitario de Materiales, Universidad de Alicante, PO Box 99, 03080 Alicante, Spain
| | - Lorena Vidal
- Departamento de Química Analítica, Nutrición y Bromatología, Instituto Universitario de Materiales, Universidad de Alicante, PO Box 99, 03080 Alicante, Spain
| | - Katie McGarry
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Aoife Morrin
- SFI Insight Centre for Data Analytics; National Centre for Sensor Research; School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
| | - Dermot F Brougham
- School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
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28
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Ding Y, Hu X, Piao Y, Huang R, Xie L, Yan X, Sun H, Li Y, Shi L, Liu Y. Lipid Prodrug Nanoassemblies via Dynamic Covalent Boronates. ACS NANO 2023; 17:6601-6614. [PMID: 36999933 DOI: 10.1021/acsnano.2c12233] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Prodrug nanoassemblies combine the advantages of prodrug and nanomedicines, offering great potential in targeting the lesion sites and specific on-demand drug release, maximizing the therapeutic performance while minimizing their side effects. However, there is still lacking a facile pathway to prepare the lipid prodrug nanoassemblies (LPNAs). Herein, we report the LPNAs via the dynamic covalent boronate between catechol and boronic acid. The resulting LPNAs possess properties like drug loading in a dynamic covalent manner, charge reversal in an acidic microenvironment, and specific drug release at an acidic and/or oxidative microenvironment. Our methodology enables the encapsulation and delivery of three model drugs: ciprofloxacin, bortezomib, and miconazole. Moreover, the LPNAs are often more efficient in eradicating pathogens or cancer cells than their free counterparts, both in vitro and in vivo. Together, our LPNAs with intriguing properties may boost the development of drug delivery and facilitate their clinical applications.
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Affiliation(s)
- Yuxun Ding
- Translational Medicine Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325001, China
| | - Xiaowen Hu
- Translational Medicine Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325001, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yinzi Piao
- Translational Medicine Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325001, China
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rong Huang
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Lingping Xie
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Xiaojian Yan
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Hui Sun
- College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuanfeng Li
- Translational Medicine Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325001, China
| | - Linqi Shi
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yong Liu
- Translational Medicine Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325001, China
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29
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Daniels EL, Runge JR, Oshinowo M, Leese HS, Buchard A. Cross-Linking of Sugar-Derived Polyethers and Boronic Acids for Renewable, Self-Healing, and Single-Ion Conducting Organogel Polymer Electrolytes. ACS APPLIED ENERGY MATERIALS 2023; 6:2924-2935. [PMID: 36936513 PMCID: PMC10015429 DOI: 10.1021/acsaem.2c03937] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 02/10/2023] [Indexed: 06/16/2023]
Abstract
This report describes the synthesis and characterization of organogels by reaction of a diol-containing polyether, derived from the sugar d-xylose, with 1,4-phenylenediboronic acid (PDBA). The cross-linked materials were analyzed by infrared spectroscopy (FT-IR), thermal gravimetric analysis (TGA), scanning electron microscopy (FE-SEM), and rheology. The rheological material properties could be tuned: gel or viscoelastic behavior depended on the concentration of polymer, and mechanical stiffness increased with the amount of PDBA cross-linker. Organogels demonstrated self-healing capabilities and recovered their storage and loss moduli instantaneously after application and subsequent strain release. Lithiated organogels were synthesized through incorporation of lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) into the cross-linked matrix. These lithium-borate polymer gels showed a high ionic conductivity value of up to 3.71 × 10-3 S cm-1 at 25 °C, high lithium transference numbers (t + = 0.88-0.92), and electrochemical stability (4.51 V). The gels were compatible with lithium-metal electrodes, showing stable polarization profiles in plating/stripping tests. This system provides a promising platform for the production of self-healing gel polymer electrolytes (GPEs) derived from renewable feedstocks for battery applications.
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Affiliation(s)
- Emma L. Daniels
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
- Materials
for Health Lab, Department of Chemical Engineering, University of Bath, Claverton
Down, Bath BA2 7AY, U.K.
| | - James R. Runge
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
| | - Matthew Oshinowo
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
| | - Hannah S. Leese
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
- Materials
for Health Lab, Department of Chemical Engineering, University of Bath, Claverton
Down, Bath BA2 7AY, U.K.
| | - Antoine Buchard
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
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30
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d'Amone L, Sahoo JK, Ostrovsky-Snider N, Kaplan DL, Omenetto FG. Boronic Acid-Tethered Silk Fibroin for pH-Dependent Mucoadhesion. Biomacromolecules 2023; 24:1310-1317. [PMID: 36763594 DOI: 10.1021/acs.biomac.2c01349] [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: 02/11/2023]
Abstract
Mucus lines all surfaces of the human body not covered by skin and provides lubrication, hydration, and protection. The properties of mucus are influenced by changes in pH that may occur due to physiological conditions and pathological circumstances. Reinforcing the mucus barrier with biopolymers that can adhere to mucus in different conditions can be a useful strategy for protecting the underlying mucosae from damage. In this work, regenerated silk fibroin (silk) was chemically modified with phenyl boronic acid to form reversible covalent complexes with the 1,2- or 1,3-diols. The silk modified with boronic acid pendant groups has an increased affinity for mucins, whose carbohydrate component is rich in diols. These results offer new applications of silk in mucoadhesion, and the ability to bind diols to the silk lays the foundation for the development of silk-based sugar-sensing platforms.
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Affiliation(s)
- Luciana d'Amone
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02153, United States
| | - Jugal Kishore Sahoo
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02153, United States
| | | | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02153, United States
| | - Fiorenzo G Omenetto
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02153, United States
- Department of Electrical and Computer Engineering, Tufts University, Medford, Massachusetts 02153, United States
- Department of Physics, Tufts University, Medford, Massachusetts 02153, United States
- Laboratory for Living Devices, Tufts University, Medford, Massachusetts 02153, United States
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31
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Aggregation-Based Bacterial Separation with Gram-Positive Selectivity by Using a Benzoxaborole-Modified Dendrimer. Molecules 2023; 28:molecules28041704. [PMID: 36838690 PMCID: PMC9958924 DOI: 10.3390/molecules28041704] [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: 01/09/2023] [Revised: 02/06/2023] [Accepted: 02/06/2023] [Indexed: 02/12/2023] Open
Abstract
Antimicrobial-resistant (AMR) bacteria have become a critical global issue in recent years. The inefficacy of antimicrobial agents against AMR bacteria has led to increased difficulty in treating many infectious diseases. Analyses of the environmental distribution of bacteria are important for monitoring the AMR problem, and a rapid as well as viable pH- and temperature-independent bacterial separation method is required for collecting and concentrating bacteria from environmental samples. Thus, we aimed to develop a useful and selective bacterial separation method using a chemically synthesized nanoprobe. The metal-free benzoxaborole-based dendrimer probe BenzoB-PAMAM(+), which was synthesized from carboxy-benzoxaborole and a poly(amidoamine) (PAMAM) dendrimer, could help achieve Gram-positive bacterial separation by recognizing Gram-positive bacterial surfaces over a wide pH range, leading to the formation of large aggregations. The recognition site of benzoxaborole has a desirable high acidity and may therefore be responsible for the improved Gram-positive selectivity. The Gram-positive bacterial aggregation was then successfully collected by using a 10 μm membrane filter, with Gram-negative bacteria remaining in the filtrate solution. BenzoB-PAMAM(+) will thus be useful for application in biological analyses and could contribute to further investigations of bacterial distributions in environmental soil or water.
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32
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Kwon HJ, Shin HH, Hyun DH, Yoon G, Park JS, Ryu JH. Carbon black-containing self-healing adhesive hydrogels for endoscopic tattooing. Sci Rep 2023; 13:1880. [PMID: 36732365 PMCID: PMC9895047 DOI: 10.1038/s41598-023-28113-1] [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: 09/19/2022] [Accepted: 01/12/2023] [Indexed: 02/04/2023] Open
Abstract
Endoscopic tattooing with India ink is a popular method for identifying colonic lesions during minimally invasive surgery because it is highly challenging to localize lesions during laparoscopy. However, there is a perceived unmet need for the injection of India ink and carbon particle suspension due to various complications and inconstant durability during the perioperative period. In this study, carbon black-containing self-healing adhesive alginate/polyvinyl alcohol composite hydrogels were synthesized as endoscopic tattooing inks. Alginate (Alg) conjugated with phenylboronic acid (PBA) groups in the backbone was crosslinked with polyvinyl alcohol (PVA) because of the dynamic bonds between the phenylboronic acid in alginate and the cis-diol groups of PVA. The carbon black-incorporated Alg-PBA/PVA hydrogels exhibited self-healing and re-shapable properties, indicating that improved intraoperative localization could be achieved. In addition, the adhesive tattooing hydrogels were stably immobilized on the target regions in the intraperitoneal spaces. These carbon black-containing self-healing adhesive hydrogels are expected to be useful in various surgical procedures, including endoscopic tattooing.
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Affiliation(s)
- Hyung Jun Kwon
- Department of Surgery, School of Medicine, Kyungpook National University Hospital, Kyungpook National University, Daegu, 41404, South Korea
| | - Hyun Ho Shin
- Department of Chemical Engineering, Wonkwang University, Iksan, Jeonbuk, 54538, South Korea
| | - Da Han Hyun
- Department of Biomedical Science, School of Medicine, Kyungpook National University, Daegu, 41404, South Korea
| | - Ghilsuk Yoon
- Department of Pathology, School of Medicine, Kyungpook National University, Daegu, 41566, South Korea
| | - Jun Seok Park
- Department of Surgery, School of Medicine, Kyungpook National University Hospital, Kyungpook National University, Daegu, 41404, South Korea.
| | - Ji Hyun Ryu
- Department of Carbon Convergence Engineering, Wonkwang University, Iksan, Jeonbuk, 54538, South Korea. .,ICT Fusion Green Energy Research Institute, Wonkwang University, Iksan, Jeonbuk, 54538, South Korea.
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33
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Abstract
Dissipative behaviors in biology are fuel-driven processes controlled by living cells, and they shape the structural and functional complexities in biological materials. This concept has inspired the development of various forms of synthetic dissipative materials controlled by time-dependent consumption of chemical or physical fuels, such as reactive chemical species, light, and electricity. To date, synthetic living materials featuring dissipative behaviors directly controlled by the fuel consumption of their constituent cells is unprecedented. In this paper, we report a chemical fuel-driven dissipative behavior of living materials comprising Staphylococcus epidermidis and telechelic block copolymers. The macroscopic phase transition is controlled by d-glucose which serves a dual role of a competitive disassembling agent and a biological fuel source for living cells. Our work is a significant step toward constructing a synthetic dissipative living system and provides a new tool and knowledge to design emergent living materials.
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Affiliation(s)
- Hyuna Jo
- Center for Complex and Active Materials, University of California, Irvine, Irvine, California 92697, United States.,Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
| | - Serxho Selmani
- Center for Complex and Active Materials, University of California, Irvine, Irvine, California 92697, United States.,Department of Chemistry, University of California Irvine, Irvine, California 92697, United States
| | - Zhibin Guan
- Center for Complex and Active Materials, University of California, Irvine, Irvine, California 92697, United States.,Department of Chemistry, University of California Irvine, Irvine, California 92697, United States.,Department of Chemical and Biomolecular Engineering, University of California Irvine, Irvine, California 92697, United States.,Department of Material Science and Engineering, University of California Irvine, Irvine, California 92697, United States.,Department of Biomedical Engineering, University of California Irvine, Irvine, California 92697, United States
| | - Seunghyun Sim
- Center for Complex and Active Materials, University of California, Irvine, Irvine, California 92697, United States.,Department of Chemistry, University of California Irvine, Irvine, California 92697, United States.,Department of Chemical and Biomolecular Engineering, University of California Irvine, Irvine, California 92697, United States.,Department of Biomedical Engineering, University of California Irvine, Irvine, California 92697, United States
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34
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Huang C, Wang X, Yang P, Shi S, Duan G, Liu X, Li Y. Size Regulation of Polydopamine Nanoparticles by Boronic Acid and Lewis Base. Macromol Rapid Commun 2023; 44:e2100916. [PMID: 35080287 DOI: 10.1002/marc.202100916] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/13/2022] [Indexed: 01/11/2023]
Abstract
Size regulation of polydopamine nanoparticles (PDA NPs) is vital to melanin-inspired materials. The general strategy usually focuses on tuning of the reaction parameters which could affect the dopamine (DA) monomer polymerization process, such as pH, temperature, monomer concentration, etc. The reaction between boronic acids and catechols to form boronic esters has been widely applied in many fields, but little attention has been paid in the size regulation of PDA NPs. Here, it is speculated that the fine size regulation of PDA NPs can be directly achieved by using boronic acids and Lewis base molecules. It is found that these issues could indeed significantly affect the stability of the boronic esters formed by boronic acids and DA, which may further inhibit the monomer polymerization kinetics and tune the particle size of the resulting PDA NPs. It is also found that the several intrinsic properties of PDA NPs such as the free radical scavenging ability, UV spectral absorption, photothermal behavior, and structural color all change with the particle size. It is believed that this work can provide new opportunities for fabricating melanin-inspired PDA NPs with well controlled size and properties.
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Affiliation(s)
- Chuhao Huang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Xianheng Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Peng Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Shun Shi
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Gaigai Duan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Xianhu Liu
- National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, 450002, China
| | - Yiwen Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
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35
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Silica-Based Nanomaterials for Diabetes Mellitus Treatment. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 10:bioengineering10010040. [PMID: 36671612 PMCID: PMC9855068 DOI: 10.3390/bioengineering10010040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/15/2022] [Accepted: 12/23/2022] [Indexed: 12/31/2022]
Abstract
Diabetes mellitus, a chronic metabolic disease with an alarming global prevalence, is associated with several serious health threats, including cardiovascular diseases. Current diabetes treatments have several limitations and disadvantages, creating the need for new effective formulations to combat this disease and its associated complications. This motivated the development of therapeutic strategies to overcome some of these limitations, such as low therapeutic drug bioavailability or poor compliance of patients with current therapeutic methodologies. Taking advantage of silica nanoparticle characteristics such as tuneable particle and pore size, surface chemistry and biocompatibility, silica-based nanocarriers have been developed with the potential to treat diabetes and regulate blood glucose concentration. This review discusses the main topics in the field, such as oral administration of insulin, glucose-responsive devices and innovative administration routes.
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36
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Azis SBA, Syafika N, Qonita HA, Mahmud TRA, Abizart A, Permana AD. Application of validated spectrophotometric method to quantify metformin in the development of glucose-responsive microparticles loaded dissolving microneedles. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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37
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Mikagi A, Manita K, Tsuchido Y, Kanzawa N, Hashimoto T, Hayashita T. Boronic Acid-Based Dendrimers with Various Surface Properties for Bacterial Recognition with Adjustable Selectivity. ACS APPLIED BIO MATERIALS 2022; 5:5255-5263. [PMID: 36318469 DOI: 10.1021/acsabm.2c00680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The need for a selective bacterial recognition method is evident to overcome the global problem of antibiotic resistance. Even though researchers have focused on boronic acid-based nanoprobes that immediately form boronate esters with saccharides at room temperature, the mechanism has not been well studied. We have developed boronic acid-modified poly(amidoamine) (PAMAM) dendrimers with various surface properties to investigate the mechanism of bacterial recognition. The boronic acid-based nanoprobes showed selectivity toward strains, species, or a certain group of bacteria by controlling their surface properties. Our nanoprobes showed selectivity toward Gram-positive bacteria or Escherichia coli K12W3110 without having to modify the boronic acid recognition sites. The results were obtained in 20 min and visible to the naked eye. Selectivity toward Gram-positive bacteria was realized through electrostatic interaction between the bacterial surface and the positively charged nanoprobes. In this case, the recognition target was lipoteichoic acid on the bacterial surface. On the other hand, pseudo-zwitterionic nanoprobes showed selectivity for E. coli K12W3110, indicating that phenylboronic acid did not recognize the outermost O-antigen on the lipopolysaccharide layer. Boronic acid-based nanoprobes with optimized surface properties are expected to be a powerful clinical tool to recognize multidrug-resistant strains or highly pathogenic bacteria.
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Affiliation(s)
- Ayame Mikagi
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo102-8554, Japan
| | - Koichi Manita
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo102-8554, Japan
| | - Yuji Tsuchido
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo102-8554, Japan.,Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University (TWIns), 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo162-8480, Japan
| | - Nobuyuki Kanzawa
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo102-8554, Japan
| | - Takeshi Hashimoto
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo102-8554, Japan
| | - Takashi Hayashita
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo102-8554, Japan
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38
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Valenzuela SA, Howard JR, Park HM, Darbha S, Anslyn EV. 11B NMR Spectroscopy: Structural Analysis of the Acidity and Reactivity of Phenyl Boronic Acid-Diol Condensations. J Org Chem 2022; 87:15071-15076. [PMID: 36318490 DOI: 10.1021/acs.joc.2c01514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Phenyl boronic acids are valuable for medical diagnostics and biochemistry studies due to their ability to readily bind with carbohydrates in water. Incorporated in carbohydrates are 1,2-diols, which react with boronic acids through a reversible covalent condensation pathway. A wide variety of boronic acids have been employed for diol binding with differing substitution of the phenyl ring, with the goals of simplifying their synthesis and altering their thermodynamics of complexation. One method for monitoring their pKa's and binding is 11B NMR spectroscopy. Herein, we report a comprehensive study employing 11B NMR spectroscopy to determine the pKa of the most commonly used phenyl boronic acids and their binding with catechol or d,l-hydrobenzoin as prototypical diols. The chemical shift of the boronic acid transforming into the boronate ester was monitored at pHs ranging from 2 to 10. With each boronic acid, the results confirm (1) the necessity to use pHs above their pKa's to induce complexation, (2) that the pKa's change in the presence of diols, and (3) that 11B NMR spectroscopy is a particularly convenient tool for monitoring these interconnected acidity and binding phenomena.
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Affiliation(s)
- Stephanie A Valenzuela
- Department of Chemistry, University of Texas at Austin, 100 E 24th Street, Norman Hackerman Building (Room 114A), Austin, Texas78712, United States
| | - James R Howard
- Department of Chemistry, University of Texas at Austin, 100 E 24th Street, Norman Hackerman Building (Room 114A), Austin, Texas78712, United States
| | - Hyun Meen Park
- Department of Chemistry, University of Texas at Austin, 100 E 24th Street, Norman Hackerman Building (Room 114A), Austin, Texas78712, United States
| | - Sriranjani Darbha
- Department of Chemistry, University of Texas at Austin, 100 E 24th Street, Norman Hackerman Building (Room 114A), Austin, Texas78712, United States
| | - Eric V Anslyn
- Department of Chemistry, University of Texas at Austin, 100 E 24th Street, Norman Hackerman Building (Room 114A), Austin, Texas78712, United States
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39
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Jiang M, Chattopadhyay AN, Li CH, Geng Y, Luther DC, Huang R, Rotello VM. Direct discrimination of cell surface glycosylation signatures using a single pH-responsive boronic acid-functionalized polymer. Chem Sci 2022; 13:12899-12905. [PMID: 36519060 PMCID: PMC9645398 DOI: 10.1039/d2sc02116a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 10/05/2022] [Indexed: 08/05/2023] Open
Abstract
Cell surface glycans serve fundamental roles in many biological processes, including cell-cell interaction, pathogen infection, and cancer metastasis. Cancer cell surface have alternative glycosylation to healthy cells, making these changes useful hallmarks of cancer. However, the diversity of glycan structures makes glycosylation profiling very challenging, with glycan 'fingerprints' providing an important tool for assessing cell state. In this work, we utilized the pH-responsive differential binding of boronic acid (BA) moieties with cell surface glycans to generate a high-content six-channel BA-based sensor array that uses a single polymer to distinguish mammalian cell types. This sensing platform provided efficient discrimination of cancer cells and readily discriminated between Chinese hamster ovary (CHO) glycomutants, providing evidence that discrimination is glycan-driven. The BA-functionalized polymer sensor array is readily scalable, providing access to new diagnostic and therapeutic strategies for cell surface glycosylation-associated diseases.
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Affiliation(s)
- Mingdi Jiang
- Department of Chemistry, University of Massachusetts Amherst 710 N. Pleasant St. Amherst MA 01003 USA
| | - Aritra Nath Chattopadhyay
- Department of Chemistry, University of Massachusetts Amherst 710 N. Pleasant St. Amherst MA 01003 USA
| | - Cheng Hsuan Li
- Department of Chemistry, University of Massachusetts Amherst 710 N. Pleasant St. Amherst MA 01003 USA
| | - Yingying Geng
- Department of Chemistry, University of Massachusetts Amherst 710 N. Pleasant St. Amherst MA 01003 USA
| | - David C Luther
- Department of Chemistry, University of Massachusetts Amherst 710 N. Pleasant St. Amherst MA 01003 USA
| | - Rui Huang
- Department of Chemistry, University of Massachusetts Amherst 710 N. Pleasant St. Amherst MA 01003 USA
| | - Vincent M Rotello
- Department of Chemistry, University of Massachusetts Amherst 710 N. Pleasant St. Amherst MA 01003 USA
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40
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Jangid AK, Solanki R, Jadav M, Bora S, Patel S, Pooja D, Kulhari H. Phenyl Boronic Acid -PEG-Stearic acid biomaterial-based and Sialic acid Targeted Nanomicelles for Colon Cancer Treatment. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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41
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Akinjole O, Honaryar H, Coulibaly FS, Niroobakhsh Z, Youan BBC. Rheological analysis of a novel phenylboronic acid-closomer gel. Int J Pharm 2022; 626:122070. [PMID: 36041591 DOI: 10.1016/j.ijpharm.2022.122070] [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: 05/20/2022] [Revised: 07/27/2022] [Accepted: 07/29/2022] [Indexed: 12/30/2022]
Abstract
This study aims to characterize the rheological behavior of a novel phenylboronic acid (PBA)-based closomer nanoconjugate (Closogel) with potential application in pharmaceutical formulation. PBA was used as a cross-linking agent and model (antiviral) drug. The PBA loaded Closogel chemical structure was analyzed by boron (11B) NMR and Fourier transform infrared (FTIR) spectroscopy. The Closogel and control hydroxyethyl cellulose (HEC) gel were analyzed under oscillatory and continuous shear rheometry followed by mathematical modeling to characterize the gel flow behavior. The chemical analysis confirmed the existence of characteristic borate esters peaks and Boron chemical shifts within Closogel spectra. Due to its more flexible molecular structure, undiluted Closogel exhibited lower, yield stress, viscosity and relaxation time (30 Pa &163 Pa.s & 0.21 s vs 45 Pa &301 Pa.s & 0.39 s for HEC). Both Closogel and HEC gels exhibited a thixotropic behavior. The plastic undiluted and pseudoplastic 2.5 % w/v aqueous Closogels were more viscous than elastic (tan (δ) > 1) in the linear viscoelastic range. The Herschel-Bulkley model showed a significant fitting to all experimental data (R2 > 0.95). The 0.25 % w/v aqueous Closogel nearly exhibited a Newtonian behavior with a flow index of 0.93. These data suggest that PBA loaded Closomer-based gels have similar rheological behavior, with lower complex modulus than that of HEC gels, and they can be a promising platform used for delivery of topical antiviral or other bioactive agents.
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Affiliation(s)
- Omowumi Akinjole
- Laboratory of Future Nanomedicines and Theoretical Chronopharmaceutics, Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri - Kansas City, 2464 Charlotte, Kansas City 64108, MO, USA.
| | - Houman Honaryar
- School of Computing and Engineering, University of Missouri - Kansas City, 5100 Rockhill Road, Kansas City 64110, MO, USA.
| | - Fohona S Coulibaly
- Laboratory of Future Nanomedicines and Theoretical Chronopharmaceutics, Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri - Kansas City, 2464 Charlotte, Kansas City 64108, MO, USA.
| | - Zahra Niroobakhsh
- School of Computing and Engineering, University of Missouri - Kansas City, 5100 Rockhill Road, Kansas City 64110, MO, USA.
| | - Bi-Botti C Youan
- Laboratory of Future Nanomedicines and Theoretical Chronopharmaceutics, Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri - Kansas City, 2464 Charlotte, Kansas City 64108, MO, USA.
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42
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Liu L, Rambarran T, Sheardown H. Phenylboronic acid modified hydrogel materials and their potential for use in contact lens based drug delivery. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:1924-1938. [PMID: 35695022 DOI: 10.1080/09205063.2022.2088531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/31/2022] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
The use of hydrogel-based contact lens materials holds promise for ophthalmic drug delivery by increasing drug residence time, improving drug bioavailability, reducing administration frequency, and enhancing special site targeting. Issues such as ease of manufacturing, lens comfort and appropriate release kinetics must be considered. Furthermore, the high water content of hydrogel materials can result in rapid and poorly controlled release kinetics. Herein, we modified common hydrogels used in contact lens manufacturing with phenylboronic acid (PBA). PBA addresses these material design issues since boronate esters are easily formed when boron acid and diols interact, opening up a pathway for simple modification of the model lens materials with saccharide based wetting agents. The wetting agents have the potential to improve lens comfort. Furthermore, the hydrophobicity of PBA and the presence of diols can be useful to help control drug release kinetics. In this work, polymerizable 3-(acrylamido)phenylboronic acid (APBA) was synthesized and incorporated into various hydrogels used in contact lens applications, including poly(2-hydroxyethylmethacrylate) (PHEMA), polyvinylpyrrolidone (PVP) and poly(N,N-dimethyl acrylamide) (PDMA) using UV induced free radical polymerization. The APBA structure and its incorporation into the hydrogel materials were confirmed by NMR and FTIR. The materials were shown to interact with and bind wetting agents such as hyaluronan (HA) and hydroxypropyl guar (HPG) by simple soaking in an aqueous solution. The equilibrium water content of the modified materials was characterized, demonstrating that most materials are still in the appropriate range after the introduction of the hydrophobic PBA. The release of three model ophthalmic drugs with varying hydrophilicity, atropine, atropine sulfate and dexamethasone, was examined. The presence of PBA in the materials was found to promote sustained drug release due to its hydrophobic nature. The results suggest that the modification of the materials with PBA was able to not only provide a mucoadhesive property that enhanced wetting agent interactions with the materials, but had the potential to alter drug release. Thus, the modification of contact lens materials with mucoadhesive functionality may be useful in the design of hydrogel contact lenses for ophthalmic drug release and wetting agent binding.
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Affiliation(s)
- Lina Liu
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada
| | - Talena Rambarran
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada
| | - Heather Sheardown
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada
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43
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Shen KH, Yeh YY, Chiu TH, Wang R, Yeh YC. Dual Dynamic Covalently Crosslinked Alginate Hydrogels with Tunable Properties and Multiple Stimuli-Responsiveness. ACS Biomater Sci Eng 2022; 8:4249-4261. [PMID: 36173708 DOI: 10.1021/acsbiomaterials.2c00571] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Alginate is a biopolymer that can be crosslinked with calcium ions to fabricate cytocompatible hydrogels. However, using calcium ions to crosslink alginate provides limited properties and functions to alginate hydrogels, restricting their biomedical applications. Here, phenylboronic acid-functionalized polyethyleneimine (PBA-PEI) was developed to introduce two orthogonal dynamic covalent crosslinks in the alginate hydrogels, where PBA-PEI was used to crosslink alginate dialdehyde (ADA) through imine bonds and boronate ester bonds. The grafting degree of PBA in the PEI structure was applied to fine-tune the properties of PBA-PEI/ADA hydrogels, including the rheological property, mechanical strength, swelling behavior, and antibacterial activity. In particular, the highly sensitive boronate ester bonds in the network enabled PBA-PEI/ADA hydrogels to be responsive to several stimuli, such as glucose, fructose, and hydrogen peroxide. Taken together, PBA-PEI/ADA hydrogels with tunable properties and multiple stimuli-responsiveness have been demonstrated as smart biomaterials for advanced biomedical applications.
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Affiliation(s)
- Ke-Han Shen
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Ying-Yu Yeh
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Ting-Hsiang Chiu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Reuben Wang
- Institute of Food Safety and Health, National Taiwan University, Taipei 10055, Taiwan
| | - Yi-Cheun Yeh
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
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44
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Unger K, Coclite AM. Glucose-Responsive Boronic Acid Hydrogel Thin Films Obtained via Initiated Chemical Vapor Deposition. Biomacromolecules 2022; 23:4289-4295. [PMID: 36053563 PMCID: PMC9554909 DOI: 10.1021/acs.biomac.2c00762] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Glucose-responsive materials are of great importance
in the field
of monitoring the physiological glucose level or smart insulin management.
This study presents the first vacuum-based deposition of a glucose-responsive
hydrogel thin film. The successful vacuum-based synthesis of a glucose-responsive
hydrogel may open the door to a vast variety of new applications,
where, for example, the hydrogel thin film is applied on new possible
substrates. In addition, vacuum-deposited films are free of leachables
(e.g., plasticizers and residual solvents). Therefore, they are, in
principle, safe for in-body applications. A hydrogel made of but-3-enylboronic
acid units, a boronic acid compound, was synthesized via initiated
chemical vapor deposition. The thin film was characterized in terms
of chemical composition, surface morphology, and swelling response
toward pH and sucrose, a glucose–fructose compound. The film
was stable in aqueous solutions, consisting of polymerized boronic
acid and the initiator unit, and had an undulating texture appearance
(rms 2.1 nm). The hydrogel was in its shrunken state at pH 4–7
and swelled by increasing the pH to 9. The pKa was 8.2 ± 0.2. The response to glucose was observed
at pH 10 and resulted in thickness shrinking.
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Affiliation(s)
- Katrin Unger
- Institute of Solid State Physics, NAWI Graz, Graz University of Technology, 8010 Graz, Austria
| | - Anna Maria Coclite
- Institute of Solid State Physics, NAWI Graz, Graz University of Technology, 8010 Graz, Austria
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45
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Debiais M, Vasseur JJ, Smietana M. Applications of the Reversible Boronic Acids/Boronate Switch to Nucleic Acids. CHEM REC 2022; 22:e202200085. [PMID: 35641415 DOI: 10.1002/tcr.202200085] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/16/2022] [Indexed: 11/09/2022]
Abstract
Over the last decades, boron and nucleic acids chemistries have gained a lot of attention for biological, medicinal and analytical applications. Our laboratory has a long-standing interest in both chemistries and owing to the ability of boronic acids to react with cis-diol function in aqueous media we developed over the years a variety of applications ranging from molecular recognition and sensing to the development of reversible dynamic systems in which the natural phosphodiester linkage was replaced by a boronate. In this account, we summarize research results from our group from our preliminary studies on molecular recognition of ribonucleosides to the dynamic assembly of functional DNAzymes. In particular, the various parameters influencing the dynamic nature of these reversible covalent bonds able to respond to external stimuli are discussed. Finally, current challenges and opportunities for boron-based nucleic acids are also addressed.
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Affiliation(s)
- Mégane Debiais
- Institut des Biomolécules Max Mousseron, Université de Montpellier, CNRS, ENSCM, 1919 route de Mende, 34095, Montpellier, France
| | - Jean-Jacques Vasseur
- Institut des Biomolécules Max Mousseron, Université de Montpellier, CNRS, ENSCM, 1919 route de Mende, 34095, Montpellier, France
| | - Michael Smietana
- Institut des Biomolécules Max Mousseron, Université de Montpellier, CNRS, ENSCM, 1919 route de Mende, 34095, Montpellier, France
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Porath L, Huang J, Ramlawi N, Derkaloustian M, Ewoldt RH, Evans CM. Relaxation of Vitrimers with Kinetically Distinct Mixed Dynamic Bonds. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02613] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Laura Porath
- Department of Materials Science and Engineering, University of Illinois Urbana Champaign, Urbana, Illinois 61801, United States
- Frederick Seitz Materials Research Laboratory, University of Illinois Urbana Champaign, Urbana, Illinois 61801, United States
| | - Junrou Huang
- Department of Materials Science and Engineering, University of Illinois Urbana Champaign, Urbana, Illinois 61801, United States
- Frederick Seitz Materials Research Laboratory, University of Illinois Urbana Champaign, Urbana, Illinois 61801, United States
| | - Nabil Ramlawi
- Department of Mechanical Science and Engineering, University of Illinois Urbana Champaign, Urbana, Illinois 61801, United States
| | - Maryanne Derkaloustian
- Department of Materials Science and Engineering, University of Illinois Urbana Champaign, Urbana, Illinois 61801, United States
| | - Randy H. Ewoldt
- Frederick Seitz Materials Research Laboratory, University of Illinois Urbana Champaign, Urbana, Illinois 61801, United States
- Department of Mechanical Science and Engineering, University of Illinois Urbana Champaign, Urbana, Illinois 61801, United States
- Beckman Institute, University of Illinois Urbana Champaign, Urbana, Illinois 61801, United States
| | - Christopher M. Evans
- Department of Materials Science and Engineering, University of Illinois Urbana Champaign, Urbana, Illinois 61801, United States
- Frederick Seitz Materials Research Laboratory, University of Illinois Urbana Champaign, Urbana, Illinois 61801, United States
- Beckman Institute, University of Illinois Urbana Champaign, Urbana, Illinois 61801, United States
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Jo H, Sim S. Programmable Living Materials Constructed with the Dynamic Covalent Interface between Synthetic Polymers and Engineered B. subtilis. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20729-20738. [PMID: 35485836 DOI: 10.1021/acsami.2c03111] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Herein, we report the first example of programmable living materials constructed with a dynamic covalent interface between designed synthetic polymers and engineered B. subtilis cells. We identified a molecular motif that forms reversible dynamic covalent bonds on the B. subtilis cell surface. Combining block copolymers bearing this motif with genetically engineered B. subtilis yields programmable living materials that can be equipped with functionalities such as biosensing and on-demand elution of recombinant proteins. Encapsulated cells in these living materials could be reversibly retrieved and subjected to biological analyses. Further, the block copolymer in these living materials could be recycled to produce a new batch of living materials. This work advances the current capabilities in engineered living materials, establishes the groundwork for building a myriad of synthetic polymeric materials integrating engineered living cells, and provides a platform for understanding the biology of cells confined within materials.
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Affiliation(s)
- Hyuna Jo
- Department of Chemistry, School of Physical Sciences, University of California Irvine, Irvine, California 92697, United States
| | - Seunghyun Sim
- Department of Chemistry, School of Physical Sciences, University of California Irvine, Irvine, California 92697, United States
- Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering, University of California Irvine, Irvine, California 92697, United States
- Department of Biomedical Engineering, Henry Samueli School of Engineering, University of California Irvine, Irvine, California 92697, United States
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Hoffmann C, Jourdain M, Grandjean A, Titz A, Jung G. β-Boronic Acid-Substituted Bodipy Dyes for Fluorescence Anisotropy Analysis of Carbohydrate Binding. Anal Chem 2022; 94:6112-6119. [DOI: 10.1021/acs.analchem.1c04654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Caroline Hoffmann
- Biophysical Chemistry, Saarland University, Campus B2 2, 66123 Saarbrücken, Germany
- Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
| | - Matthias Jourdain
- Biophysical Chemistry, Saarland University, Campus B2 2, 66123 Saarbrücken, Germany
- Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
| | - Alexander Grandjean
- Biophysical Chemistry, Saarland University, Campus B2 2, 66123 Saarbrücken, Germany
- Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
| | - Alexander Titz
- Helmholtz Institute for Pharmaceutical Research Saarland, Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany
- Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, 38124 Braunschweig, Germany
| | - Gregor Jung
- Biophysical Chemistry, Saarland University, Campus B2 2, 66123 Saarbrücken, Germany
- Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
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Prossnitz AN, Pun SH. Modulating Boronic Ester Stability in Block Copolymer Micelles via the Neighbor Effect of Copolymerized Tertiary Amines for Controlled Release of Polyphenolic Drugs. ACS Macro Lett 2022; 11:276-283. [PMID: 35575376 DOI: 10.1021/acsmacrolett.1c00751] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The traceless and pH-sensitive properties of boronic esters are attractive for the synthesis of polymer-drug conjugates, but current platforms suffer from both low stability under physiologically relevant conditions and synthetically demanding optimization to tune drug release profiles. We hypothesized that the high catechol affinity and stability of Wulff-type boronic acids could be mimicked by copolymerization of phenyl boronic acid with a tertiary amine and subsequent micellization. This strategy yielded a versatile platform for the preparation of reversible polymer-drug conjugates, which more than doubled the oxidative stability of encapsulated polyphenolic drug cargo at physiologically relevant pH and enabled simple and incremental tuning of drug release kinetics. Moreover, we validated, with 19F NMR, that these copolymers exhibit uniquely high catechol affinity that could not be replicated by combinations of similarly functionalized small molecules. Overall, this report demonstrates that copolymerization of boronic acid and tertiary amine monomers is a powerful and modular approach to improving boronic ester chemistry for drug delivery applications.
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Affiliation(s)
- Alexander N. Prossnitz
- Department of Bioengineering, University of Washington, Seattle, Washington 98195, United States
| | - Suzie H. Pun
- Department of Bioengineering, University of Washington, Seattle, Washington 98195, United States
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Abstract
In dynamic materials, the reversible condensation between boronic acids and diols provides adaptability, self-healing ability, and responsiveness to small molecules and pH. The thermodynamics and kinetics of bond exchange determine the mechanical properties of dynamic polymer networks. Here, we investigate the effects of diol structure and salt additives on the rate of boronic acid-diol bond exchange, binding affinity, and the mechanical properties of the corresponding polymer networks. We find that proximal amides used to conjugate diols to polymers and buffering anions induce significant rate acceleration, consistent with an internal and external catalysis, respectively. This rate acceleration is reflected in the stress relaxation of the gels. These findings contribute to the fundamental understanding of the boronic ester dynamic bond and offer molecular strategies to tune the macromolecular properties of dynamic materials.
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Affiliation(s)
- Boyeong Kang
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Julia A. Kalow
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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