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Abstract
As nanotechnology continues to push the boundaries across disciplines, there is an increasing need for engineering nanomaterials with atomic-level precision for self-assembly across length scales, i.e., from the nanoscale to the macroscale. Although molecular self-assembly allows atomic precision, extending it beyond certain length scales presents a challenge. Therefore, the attention has turned to size and shape-controlled metal nanoparticles as building blocks for multifunctional colloidal self-assemblies. However, traditionally, metal nanoparticles suffer from polydispersity, uncontrolled aggregation, and inhomogeneous ligand distribution, resulting in heterogeneous end products. In this feature article, I will discuss how virus capsids provide clues for designing subunit-based, precise, efficient, and error-free self-assembly of colloidal molecules. The atomically precise nanoscale proteinic subunits of capsids display rigidity (conformational and structural) and patchy distribution of interacting sites. Recent experimental evidence suggests that atomically precise noble metal nanoclusters display an anisotropic distribution of ligands and patchy ligand bundles. This enables symmetry breaking, consequently offering a facile route for two-dimensional colloidal crystals, bilayers, and elastic monolayer membranes. Furthermore, inter-nanocluster interactions mediated via the ligand functional groups are versatile, offering routes for discrete supracolloidal capsids, composite cages, toroids, and macroscopic hierarchically porous frameworks. Therefore, engineered nanoparticles with atomically precise structures have the potential to overcome the limitations of molecular self-assembly and large colloidal particles. Self-assembly allows the emergence of new optical properties, mechanical strength, photothermal stability, catalytic efficiency, quantum yield, and biological properties. The self-assembled structures allow reproducible optoelectronic properties, mechanical performance, and accurate sensing. More importantly, the intrinsic properties of individual nanoclusters are retained across length scales. The atomically precise nanoparticles offer enormous potential for next-generation functional materials, optoelectronics, precision sensors, and photonic devices.
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Affiliation(s)
- Nonappa
- Facutly of Engineering and Natural Sciences, Tampere University, FI-33720, Tampere, Finland.
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2
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Caggiano N, Armstrong MS, Georgiou JS, Rawal A, Wilson BK, White CE, Priestley RD, Prud’homme RK. Formulation and Scale-up of Delamanid Nanoparticles via Emulsification for Oral Tuberculosis Treatment. Mol Pharm 2023; 20:4546-4558. [PMID: 37578286 PMCID: PMC10481377 DOI: 10.1021/acs.molpharmaceut.3c00240] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 08/15/2023]
Abstract
Delamanid (DLM) is a hydrophobic small molecule therapeutic used to treat drug-resistant tuberculosis (DR-TB). Due to its hydrophobicity and resulting poor aqueous solubility, formulation strategies such as amorphous solid dispersions (ASDs) have been investigated to enhance its aqueous dissolution kinetics and thereby improve oral bioavailability. However, ASD formulations are susceptible to temperature- and humidity-induced phase separation and recrystallization under harsh storage conditions typically encountered in areas with high tuberculosis incidence. Nanoencapsulation represents an alternative formulation strategy to increase aqueous dissolution kinetics while remaining stable at elevated temperature and humidity. The stabilizer layer coating the nanoparticle drug core limits the formation of large drug domains by diffusion during storage, representing an advantage over ASDs. Initial attempts to form DLM-loaded nanoparticles via precipitation-driven self-assembly were unsuccessful, as the trifluoromethyl and nitro functional groups present on DLM were thought to interfere with surface stabilizer attachment. Therefore, in this work, we investigated the nanoencapsulation of DLM via emulsification, avoiding the formation of a solid drug core and instead keeping DLM dissolved in a dichloromethane dispersed phase during nanoparticle formation. Initial emulsion formulation screening by probe-tip ultrasonication revealed that a 1:1 mass ratio of lecithin and HPMC stabilizers formed 250 nm size-stable emulsion droplets with 40% DLM loading. Scale-up studies were performed to produce nearly identical droplet size distribution at larger scale using high-pressure homogenization, a continuous and industrially scalable technique. The resulting emulsions were spray-dried to form a dried powder, and in vitro dissolution studies showed dramatically enhanced dissolution kinetics compared to both as-received crystalline DLM and micronized crystalline DLM, owing to the increased specific surface area and partially amorphous character of the DLM-loaded nanoparticles. Solid-state NMR and dissolution studies showed good physical stability of the emulsion powders during accelerated stability testing (50 °C/75% RH, open vial).
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Affiliation(s)
- Nicholas
J. Caggiano
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Madeleine S. Armstrong
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Joanna S. Georgiou
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Aditya Rawal
- Mark
Wainwright Analytical Centre, University
of New South Wales, Sydney, NSW 2032, Australia
| | - Brian K. Wilson
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Claire E. White
- Department
of Civil and Environmental Engineering, Princeton University, Princeton, New Jersey 08544, United States
- Andlinger
Center for Energy and the Environment, Princeton
University, Princeton, New Jersey 08544, United States
| | - Rodney D. Priestley
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
- Princeton
Materials Institute, Princeton University, Princeton, New Jersey 08544, United States
| | - Robert K. Prud’homme
- Department
of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
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3
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Abstract
We present an overview of the Elettra-Sincrotrone Trieste research center, which hosts synchrotron and free-electron laser light sources. We review the current status, provide examples of recent achievements in basic and applied research and discuss the upgrade programs of the facility.
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Affiliation(s)
- Alfonso Franciosi
- Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, 34149 Trieste, Italy
| | - Maya Kiskinova
- Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, 34149 Trieste, Italy
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4
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Zhu A, Jiao T, Ali S, Xu Y, Ouyang Q, Chen Q. Dispersive micro solid phase extraction based ionic liquid functionalized ZnO nanoflowers couple with chromatographic methods for rapid determination of aflatoxins in wheat and peanut samples. Food Chem 2022; 391:133277. [PMID: 35623281 DOI: 10.1016/j.foodchem.2022.133277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 05/12/2022] [Accepted: 05/18/2022] [Indexed: 11/04/2022]
Abstract
Aflatoxins (AFs) contaminate agricultural products in a wide range of ways during their harvesting, storage and transport. Therefore, the detection of AFs has certain practical significance. Herein, a dispersive micro solid phase extraction (D-µSPE) technology was constructed based on 1-hexyl-3-methylimidazolium hexafluorophosphate ([HMIM][PF6]) fabricated ZnO nanoflowers for AFs extraction from food matrix before HPLC procedure. The key parameters affecting the extraction efficiency were studied. Under optimal experimental conditions, the method showed excellent linearity with high correlation coefficients (≥0.994). LOD and LOQ were 0.034 and 0.114 μg/kg for AFB1, 0.024 and 0.082 μg/kg for AFB2, 0.067 and 0.226 μg/kg for AFG1 and 0.025 and 0.084 μg/kg for AFG2. The recovery of actual samples spiked with analytes (at 5, 15 and 20 μg/kg) were from 93.8 to 105.1%. Overall, an accurate AFs analysis method was developed and could be applied to the determination of AFs in various food and agricultural products.
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Affiliation(s)
- Afang Zhu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Tianhui Jiao
- College of Food and Biological Engineering, Jimei University, Xiamen 361021, PR China
| | - Shujat Ali
- College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, PR China
| | - Yi Xu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Qin Ouyang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Quansheng Chen
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China; College of Food and Biological Engineering, Jimei University, Xiamen 361021, PR China.
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5
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Zhu H, Yin X, Zhou Y, Xu S, James TD, Wang L. Nanoplatforms with synergistic redox cycles and rich defects for activatable image-guided tumor-specific therapy. Chem 2022. [DOI: 10.1016/j.chempr.2022.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Zhang X, Jacobeen S, Zhang Q, Khau B, Yunker P, Qi HJ, Bhamla S, Russo PS. Reshaping sub-millimetre bubbles from spheres to tori. Soft Matter 2022; 18:4660-4666. [PMID: 35543353 PMCID: PMC9247010 DOI: 10.1039/d2sm00173j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Shape-changing objects are prized for applications ranging from acoustics to robotics. We report sub-millimetre bubbles that reversibly and rapidly change not only their shape but also their topological class, from sphere to torus, when subjected to a simple pressure treatment. Stabilized by a solid-like film of nanoscopic protein "particles", the bubbles may persist in toroidal form for several days, most of them with the relative dimensions expected of Clifford tori. The ability to cross topological classes reversibly and quickly is enabled by the expulsion of protein from the strained surfaces in the form of submicron assemblies. Compared to structural modifications of liquid-filled vesicles, for example by slow changes in solution osmolality, the rapid inducement of shape changes in bubbles by application of pressure may hasten experimental investigations of surface mechanics, even as it suggests new routes to lightweight materials with high surface areas.
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Affiliation(s)
- Xujun Zhang
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
- Georgia Tech Polymer Network, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Shane Jacobeen
- School of Physics, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Qiang Zhang
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Brian Khau
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
| | - Peter Yunker
- School of Physics, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - H Jerry Qi
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Saad Bhamla
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
| | - Paul S Russo
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
- Georgia Tech Polymer Network, Georgia Institute of Technology, Atlanta, GA 30332, USA
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA
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7
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Abstract
ConspectusThe concept of colloids encompasses a wide range of isotropic and anisotropic particles with diverse sizes, shapes, and functions from synthetic nanoparticles, nanorods, and nanosheets to functional biological units. They are addressed in materials science for various functions, while they are ubiquitous in the biological world for multiple functions. A large variety of synthetic colloids have been researched due to their scientific and technological importance; still they characteristically suffer from finite size distributions, imperfect shapes and interactions, and not fully engineered functions. This contrasts with biological colloids that offer precision in their size, shape, and functionality. Materials science has searched for inspiration from the biological world to allow structural control by self-assembly and hierarchy and to identify novel routes for combinations of functions in bio-inspiration.Herein, we first discuss different approaches for highly defined structural control of technically relevant synthetic colloids based on guided assemblies of biological motifs. First, we describe how polydisperse nanoparticles can be assembled within hollow protein cages to allow well-defined assemblies and hierarchical packings. Another approach relies on DNA nanotechnology-based assemblies, where engineered DNA structures allow programmed assembly. Then we will discuss synthetic colloids that have either particularly narrow size dispersity or even atomically precise structures for new assemblies and potential functions. Such colloids can have well-defined packings for membranes allowing high modulus. They can be switchable using light-responsive moieties, and they can initiate packing of larger assemblies of different geometrical shapes. The emphasis is on atomically defined nanoclusters that allow well-defined assemblies by supramolecular interactions, such as directional hydrogen bonding. Finally, we will discuss stimulus-responsive colloids for new functions, even toward complex responsive functions inspired by life. Therein, stimulus-responsive materials inspired by biological learning could allow the next generation of such materials. Classical conditioning is among the simplest biological learning concepts, requiring two stimuli and triggerable memory. Therein we use thermoresponsive hydrogels with plasmonic gold nanoparticles and a spiropyran photoacid as a model. Heating is the unconditioned stimulus leading to melting of the thermoresponsive gel, whereas light (at a specified wavelength) originally leads to reduced pH without plasmonic or structural changes because of steric gel stabilization. Under heat-induced gel melting, light results in pH-decrease and chain-like aggregation of the gold nanoparticles, allowing a new plasmonic response. Thus, simultaneous heating and light irradiation allow conditioning for a newly derived stimulus, where the logic diagram is analogous to Pavlovian conditioning. The shown assemblies demonstrate the different functionalities achievable using colloids when the sizes and the dispersity are controlled.
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Affiliation(s)
- Veikko Linko
- Department of Bioproducts and Biosystems, Aalto University School of Chemical Engineering, FI-00076 Espoo, Finland
| | - Hang Zhang
- Department of Applied Physics, Aalto University School of Science, FI-00076 Espoo, Finland
| | - Nonappa
- Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33101 Tampere, Finland
| | - Mauri A. Kostiainen
- Department of Bioproducts and Biosystems, Aalto University School of Chemical Engineering, FI-00076 Espoo, Finland
| | - Olli Ikkala
- Department of Bioproducts and Biosystems, Aalto University School of Chemical Engineering, FI-00076 Espoo, Finland
- Department of Applied Physics, Aalto University School of Science, FI-00076 Espoo, Finland
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8
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Pigliacelli C, Acocella A, Díez I, Moretti L, Dichiarante V, Demitri N, Jiang H, Maiuri M, Ras RHA, Bombelli FB, Cerullo G, Zerbetto F, Metrangolo P, Terraneo G. High-resolution crystal structure of a 20 kDa superfluorinated gold nanocluster. Nat Commun 2022; 13:2607. [PMID: 35545611 PMCID: PMC9095690 DOI: 10.1038/s41467-022-29966-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 04/07/2022] [Indexed: 11/09/2022] Open
Abstract
Crystallization of atomically precise nanoclusters is gaining increasing attention, due to the opportunity of elucidating both intracluster and intercluster packing modes, and exploiting the functionality of the resulting highly pure crystallized materials. Herein, we report the design and single-crystal X-ray structure of a superfluorinated 20 kDa gold nanocluster, with an Au25 core coated by a shell of multi-branched highly fluorinated thiols (SF27) resulting in almost 500 fluorine atoms, i.e., ([Au25(SF27)18]0). The cluster shows a switchable solubility in the fluorous phase. X-ray analysis and computational studies reveal the key role of both intracluster and intercluster F···F contacts in driving [Au25(SF27)18]0 crystal packing and stabilization, highlighting the ability of multi-branched fluorinated thiols to endow atomically precise nanoclusters with remarkable crystallogenic behavior. The synthesis of atomically precise gold nanoclusters is highly desired for fundamental studies and applications. Here, the authors report the formation of a superfluorinated gold nanocluster stabilized by a multi-branched highly fluorinated thiol ligand, and characterize its crystal structure and molecule-like spectroscopic properties.
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Affiliation(s)
- Claudia Pigliacelli
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, via L. Mancinelli 7, 20131, Milano, Italy.,Department of Applied Physics, Aalto University School of Science, Puumiehenkuja 2, FI-00076, Espoo, Finland
| | - Angela Acocella
- Dipartimento di Chimica "G. Ciamician", Università di Bologna, V. F. Selmi 2, 40126, Bologna, Italy
| | - Isabel Díez
- Department of Applied Physics, Aalto University School of Science, Puumiehenkuja 2, FI-00076, Espoo, Finland
| | - Luca Moretti
- IFN-CNR, Dipartimento di Fisica, Politecnico di Milano, 20133, Milano, Italy
| | - Valentina Dichiarante
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, via L. Mancinelli 7, 20131, Milano, Italy.
| | - Nicola Demitri
- Elettra-Sincrotrone Trieste S.S. 14 Km 163.5 in Area Science Park, 34149 Basovizza, Trieste, Italy
| | - Hua Jiang
- Department of Applied Physics, Aalto University School of Science, Puumiehenkuja 2, FI-00076, Espoo, Finland
| | - Margherita Maiuri
- IFN-CNR, Dipartimento di Fisica, Politecnico di Milano, 20133, Milano, Italy
| | - Robin H A Ras
- Department of Applied Physics, Aalto University School of Science, Puumiehenkuja 2, FI-00076, Espoo, Finland.,Department of Bioproducts and Biosystems, Aalto University School of Chemical Engineering, P.O. Box 16000, FI-00076, Espoo, Finland
| | - Francesca Baldelli Bombelli
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, via L. Mancinelli 7, 20131, Milano, Italy
| | - Giulio Cerullo
- IFN-CNR, Dipartimento di Fisica, Politecnico di Milano, 20133, Milano, Italy
| | - Francesco Zerbetto
- Dipartimento di Chimica "G. Ciamician", Università di Bologna, V. F. Selmi 2, 40126, Bologna, Italy
| | - Pierangelo Metrangolo
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, via L. Mancinelli 7, 20131, Milano, Italy. .,Department of Applied Physics, Aalto University School of Science, Puumiehenkuja 2, FI-00076, Espoo, Finland.
| | - Giancarlo Terraneo
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, via L. Mancinelli 7, 20131, Milano, Italy.
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9
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Wu P, Zhang H, Yin Y, Sun M, Mao S, Chen H, Deng Y, Chen S, Li S, Sun B. Engineered EGCG-Containing Biomimetic Nanoassemblies as Effective Delivery Platform for Enhanced Cancer Therapy. Adv Sci (Weinh) 2022; 9:e2105894. [PMID: 35486032 PMCID: PMC9131592 DOI: 10.1002/advs.202105894] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/06/2022] [Indexed: 06/07/2023]
Abstract
Nano-based immunotherapy of therapeutic biomolecules is attractive but tremendously hampered by the poor delivery efficiency. This study reports a novel delivery system of fluorinated-coordinative-epigallocatechin gallate (EGCG), referring as FEGCG/Zn, through the integration of fluorination and zinc ions (Zn2+ ) into EGCG. The robust therapeutics of FEGCG/Zn are measured in terms of the regulating effect on programmed cell death ligand 1 (PD-L1), the effective delivery of diverse biomolecules, and the hitchhiking ability using living cells. Taking small interfering RNA of PD-L1 (siPD-L1) and erythrocytes as an example, the fabricated biomimetic system achieves excellent siPD-L1 delivery and further improves siPD-L1 accumulation in tumors. Finally, the combination of FEGCG/Zn and siPD-L1 promotes antitumor immunotherapy through alleviation of T cells exhaustion by regulating PD-L1 expression in tumor cells. The results demonstrate that FEGCG/Zn substantially regulates PD-L1 expression and improves immune-biomolecule delivery by forming biomimetic nanoassemblies, offering a versatile platform for cancer immunotherapy.
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Affiliation(s)
- Pengkai Wu
- Department of Hepatobiliary SurgeryNanjing Drum Tower HospitalClinical College of Nanjing Medical UniversityNanjingJiangsu Province210008P. R. China
- Department of Hepatobiliary SurgeryNanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjingJiangsu Province210008P. R. China
| | - Haitian Zhang
- Department of Hepatobiliary SurgeryNanjing Drum Tower HospitalClinical College of Nanjing Medical UniversityNanjingJiangsu Province210008P. R. China
| | - Yin Yin
- Department of Hepatobiliary SurgeryNanjing Drum Tower HospitalClinical College of Nanjing Medical UniversityNanjingJiangsu Province210008P. R. China
- Department of Hepatobiliary SurgeryNanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjingJiangsu Province210008P. R. China
| | - Meiling Sun
- Department of Hepatobiliary SurgeryNanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjingJiangsu Province210008P. R. China
| | - Shuai Mao
- Department of Hepatobiliary SurgeryNanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjingJiangsu Province210008P. R. China
| | - Huihui Chen
- Department of Hepatobiliary SurgeryNanjing Drum Tower HospitalClinical College of Nanjing Medical UniversityNanjingJiangsu Province210008P. R. China
| | - Yexuan Deng
- Department of Hepatobiliary SurgeryNanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjingJiangsu Province210008P. R. China
| | - Shuai Chen
- MOE Key Laboratory of Model Animal for Disease StudyDepartment of EndocrinologyNanjing Drum Tower Hospitaland Model Animal Research CenterSchool of MedicineNanjing UniversityNanjing210008P. R. China
| | - Shuo Li
- Department of GastroenterologyThe First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsu Province210029P. R. China
| | - Beicheng Sun
- Department of Hepatobiliary SurgeryNanjing Drum Tower HospitalClinical College of Nanjing Medical UniversityNanjingJiangsu Province210008P. R. China
- Department of Hepatobiliary SurgeryNanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjingJiangsu Province210008P. R. China
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10
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Abstract
Hydrophobins are multifunctional, highly surface-active proteins produced in filamentous fungi. Due to their surface-active properties, resistance to degradation, and potential immunological inertness, hydrophobins have been used in many applications such as protein purification, increasing implant biocompatibility, increasing water solubility of insoluble drugs, and foam stabilizers for food products. To further explore surface-active and self-assembly properties of hydrophobins, we evaluated an engineered, recombinant hydrophobin (class II type 1, HFB1) as a potential crystallization inhibitor for maintaining drug supersaturation for an amorphous drug delivery system. A supersaturation-precipitation method was employed utilizing an ultraviolet (UV) fiber optic system for tracking precipitation kinetics of a model drug, flufenamic acid (FA), that was selected due to its low aqueous solubility in its crystalline form. The effectiveness of HFB1 as a crystallization inhibitor was compared with commonly used pharmaceutical grade polymeric crystallization inhibitors. The following polymers were selected to compare with HFB1: methocel (A4C grade), methocel (K15M grade), Kollidon vinylpyrrolidone-vinyl acetate (VA64), and hydroxypropyl methylcellulose acetate succinate (HPMCAS) (MF grade). The supersaturation-precipitation experiments concluded that HFB1 outperformed all polymers tested in this study and can potentially be used as a crystallization inhibitor at significantly lower concentrations in amorphous drug delivery systems. Dynamic light scattering (DLS) and circular dichroism (CD) results suggest a crystallization inhibition mechanism in which HFB1 functions differently depending on whether flufenamic acid is molecularly dispersed but supersaturated relative to its crystalline solubility or it has exceeded its amorphous solubility limit and exists as a phase-separated drug-rich colloid.
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Affiliation(s)
- Nathanael Sallada
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Yongjun Li
- Preformulation, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Bryan Berger
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia 22904, United States.,Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Matthew S Lamm
- Preformulation, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
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11
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Rival JV, Mymoona P, Lakshmi KM, Pradeep T, Shibu ES. Self-Assembly of Precision Noble Metal Nanoclusters: Hierarchical Structural Complexity, Colloidal Superstructures, and Applications. Small 2021; 17:e2005718. [PMID: 33491918 DOI: 10.1002/smll.202005718] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/07/2020] [Indexed: 06/12/2023]
Abstract
Ligand protected noble metal nanoparticles are excellent building blocks for colloidal self-assembly. Metal nanoparticle self-assembly offers routes for a wide range of multifunctional nanomaterials with enhanced optoelectronic properties. The emergence of atomically precise monolayer thiol-protected noble metal nanoclusters has overcome numerous challenges such as uncontrolled aggregation, polydispersity, and directionalities faced in plasmonic nanoparticle self-assemblies. Because of their well-defined molecular compositions, enhanced stability, and diverse surface functionalities, nanoclusters offer an excellent platform for developing colloidal superstructures via the self-assembly driven by surface ligands and metal cores. More importantly, recent reports have also revealed the hierarchical structural complexity of several nanoclusters. In this review, the formulation and periodic self-assembly of different noble metal nanoclusters are focused upon. Further, self-assembly induced amplification of physicochemical properties, and their potential applications in molecular recognition, sensing, gas storage, device fabrication, bioimaging, therapeutics, and catalysis are discussed. The topics covered in this review are extensively associated with state-of-the-art achievements in the field of precision noble metal nanoclusters.
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Affiliation(s)
- Jose V Rival
- Smart Materials Lab, Electrochemical Power Sources (ECPS) Division, Council of Scientific and Industrial Research (CSIR)-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR)-CSIR, Ghaziabad, Uttar Pradesh, 201002, India
| | - Paloli Mymoona
- Smart Materials Lab, Electrochemical Power Sources (ECPS) Division, Council of Scientific and Industrial Research (CSIR)-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR)-CSIR, Ghaziabad, Uttar Pradesh, 201002, India
| | - Kavalloor Murali Lakshmi
- Smart Materials Lab, Electrochemical Power Sources (ECPS) Division, Council of Scientific and Industrial Research (CSIR)-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR)-CSIR, Ghaziabad, Uttar Pradesh, 201002, India
| | - Thalappil Pradeep
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology (IIT) Madras, Chennai, Tamil Nadu, 600036, India
| | - Edakkattuparambil Sidharth Shibu
- Smart Materials Lab, Electrochemical Power Sources (ECPS) Division, Council of Scientific and Industrial Research (CSIR)-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR)-CSIR, Ghaziabad, Uttar Pradesh, 201002, India
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12
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Jamgotchian L, Vaillant S, Selingue E, Doerflinger A, Belime A, Vandamme M, Pinna G, Ling WL, Gravel E, Mériaux S, Doris E. Tumor-targeted superfluorinated micellar probe for sensitive in vivo19F-MRI. Nanoscale 2021; 13:2373-2377. [PMID: 33465227 DOI: 10.1039/d0nr08200g] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We describe herein the assembly and in vivo evaluation of a tailor-made micellar carrier system designed for the optimized encapsulation of a superfluorinated MRI probe and further targeting of solid tumors. The in vivo validation was carried out on MC38 tumor-bearing mice which allowed the confirmation of the efficient targeting properties of the nano-carrier, as monitored by 19F-MRI.
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Affiliation(s)
- Lucie Jamgotchian
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France.
| | - Solenne Vaillant
- Université Paris-Saclay, CEA, CNRS, BAOBAB, NeuroSpin, 91191 Gif-sur-Yvette, France. and Sanofi Aventis Recherche Développement, 94400 Vitry-sur-Seine, France
| | - Erwan Selingue
- Université Paris-Saclay, CEA, CNRS, BAOBAB, NeuroSpin, 91191 Gif-sur-Yvette, France.
| | - Anaelle Doerflinger
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France.
| | - Agathe Belime
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France.
| | - Marie Vandamme
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198 Gif-sur-Yvette, France
| | - Guillaume Pinna
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198 Gif-sur-Yvette, France
| | - Wai Li Ling
- Université Grenoble Alpes, CEA, CNRS, IBS, 38000 Grenoble, France
| | - Edmond Gravel
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France.
| | - Sébastien Mériaux
- Université Paris-Saclay, CEA, CNRS, BAOBAB, NeuroSpin, 91191 Gif-sur-Yvette, France.
| | - Eric Doris
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France.
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13
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Wang X, Liu F, Zhang Y, Zhu D, Saris PEJ, Xu H, Qiao M. Effective adsorption of nisin on the surface of polystyrene using hydrophobin HGFI. Int J Biol Macromol 2021; 173:399-408. [PMID: 33454334 DOI: 10.1016/j.ijbiomac.2021.01.052] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/25/2020] [Accepted: 01/08/2021] [Indexed: 11/24/2022]
Abstract
Herein, a new method was demonstrated for effective immobilization of the antibacterial peptide nisin on Grifola frondosa hydrophobin (HGFI), without the need of any additional complex reaction. Hydrophobin can self-assemble as a monolayer to form continuous negative-charged surfaces with enhanced wettability and biocompatibility. Adding nisin solution to such hydrophobin surface created antibacterial surfaces. The quantification analysis revealed that more nisin could be adsorbed on the HGFI-coated than to control polystyrene surfaces at different pH values. This suggested that electronic attraction and wettability may play important roles in this process. The transmission electron microscopy, atomic force microscopy and fourier transform infrared (FTIR) analysis indicated the adsorption mode of nisin on the HGFI film, i.e., hydrophobins served as an adhesive layer for binding charged peptides to interfaces. The antibacterial activity of the treated surface was investigated via counting, a nucleic acid release test, scanning electron microscopy, and biofilm detection. These results indicated the excellent antibacterial activity of nisin adsorbed on the HGFI-coated surfaces. The activity retention of adsorbed nisin was demonstrated by immersing the modified substrates in a flowed liquid condition.
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14
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Dichiarante V, Pigliacelli C, Metrangolo P, Baldelli Bombelli F. Confined space design by nanoparticle self-assembly. Chem Sci 2020; 12:1632-1646. [PMID: 34163923 PMCID: PMC8179300 DOI: 10.1039/d0sc05697a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 12/22/2020] [Indexed: 12/26/2022] Open
Abstract
Nanoparticle (NP) self-assembly has led to the fabrication of an array of functional nanoscale systems, having diverse architectures and functionalities. In this perspective, we discuss the design and application of NP suprastructures (SPs) characterized by nanoconfined compartments in their self-assembled framework, providing an overview about SP synthetic strategies reported to date and the role of their confined nanocavities in applications in several high-end fields. We also set to give our contribution towards the formation of more advanced nanocompartmentalized SPs able to work in dynamic manners, discussing the opportunities of further advances in NP self-assembly and SP research.
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Affiliation(s)
- Valentina Dichiarante
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano Via Luigi Mancinelli 7 20131 Milan Italy
| | - Claudia Pigliacelli
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano Via Luigi Mancinelli 7 20131 Milan Italy
| | - Pierangelo Metrangolo
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano Via Luigi Mancinelli 7 20131 Milan Italy
| | - Francesca Baldelli Bombelli
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano Via Luigi Mancinelli 7 20131 Milan Italy
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15
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Neri G, Mion G, Pizzi A, Celentano W, Chaabane L, Chierotti MR, Gobetto R, Li M, Messa P, De Campo F, Cellesi F, Metrangolo P, Baldelli Bombelli F. Fluorinated PLGA Nanoparticles for Enhanced Drug Encapsulation and 19 F NMR Detection. Chemistry 2020; 26:10057-10063. [PMID: 32515857 DOI: 10.1002/chem.202002078] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/08/2020] [Indexed: 12/13/2022]
Abstract
In the continuous search for multimodal systems with combined diagnostic and therapeutic functions, several efforts have been made to develop multifunctional drug delivery systems. In this work, through a covalent approach, a new class of fluorinated poly(lactic-co-glycolic acid) co-polymers (F-PLGA) were designed that contain an increasing number of magnetically equivalent fluorine atoms. In particular, two novel compounds, F3 -PLGA and F9 -PLGA, were synthesized and their chemical structure and thermal stability were analyzed by solution NMR, DSC, and TGA. The obtained F-PLGA compounds were proven to form in aqueous solution colloidal stable nanoparticles (NPs) displaying a strong 19 F NMR signal. The fluorinated NPs also showed an enhanced ability to load hydrophobic drugs containing fluorine atoms compared to analogous pristine PLGA NPs. Preliminary in vitro studies showed high cell viability and the NP ability to intracellularly deliver and release a functioning drug.
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Affiliation(s)
- Giulia Neri
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, V. Luigi Mancinelli, 20131, Milan, Italy.,Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d'Alcontres, 31, 98166, Messina, Italy
| | - Giuliana Mion
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, V. Luigi Mancinelli, 20131, Milan, Italy
| | - Andrea Pizzi
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, V. Luigi Mancinelli, 20131, Milan, Italy
| | - Wanda Celentano
- Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, V. Luigi Mancinelli, 20131, Milan, Italy
| | - Linda Chaabane
- Institute of Experimental Neurology (INSPE) and Experimental Imaging, Center (CIS), IRCCS San Raffaele Hospital, V. Olgettina, 60, 20132, Milan, Italy
| | - Michele R Chierotti
- Department of Chemistry and NIS Centre, Università di Torino, V. Pietro Giuria, 7, 10125, Turin, Italy
| | - Roberto Gobetto
- Department of Chemistry and NIS Centre, Università di Torino, V. Pietro Giuria, 7, 10125, Turin, Italy
| | - Min Li
- Renal Research Laboratory, Fondazione IRCCS Ca" Granda Ospedale Maggiore Policlinico, V. Francesco Sforza, 35, 20122, Milan, Italy
| | - Piergiorgio Messa
- Renal Research Laboratory, Fondazione IRCCS Ca" Granda Ospedale Maggiore Policlinico, V. Francesco Sforza, 35, 20122, Milan, Italy
| | - Floryan De Campo
- Solvay Specialty Polymers, V. Lombardia, 20, Bollate, 20021, Milan, Italy
| | - Francesco Cellesi
- Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, V. Luigi Mancinelli, 20131, Milan, Italy
| | - Pierangelo Metrangolo
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, V. Luigi Mancinelli, 20131, Milan, Italy
| | - Francesca Baldelli Bombelli
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, V. Luigi Mancinelli, 20131, Milan, Italy
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16
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Cheng Y, Wang B, Wang Y, Zhang H, Liu C, Yang L, Chen Z, Wang Y, Yang H, Wang Z. Soluble hydrophobin mutants produced in Escherichia coli can self-assemble at various interfaces. J Colloid Interface Sci 2020; 573:384-395. [DOI: 10.1016/j.jcis.2020.04.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 04/02/2020] [Accepted: 04/03/2020] [Indexed: 11/30/2022]
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17
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Pigliacelli C, Sánchez-Fernández R, García MD, Peinador C, Pazos E. Self-assembled peptide-inorganic nanoparticle superstructures: from component design to applications. Chem Commun (Camb) 2020; 56:8000-8014. [PMID: 32495761 DOI: 10.1039/d0cc02914a] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Peptides have become excellent platforms for the design of peptide-nanoparticle hybrid superstructures, owing to their self-assembly and binding/recognition capabilities. Morover, peptide sequences can be encoded and modified to finely tune the structure of the hybrid systems and pursue functionalities that hold promise in an array of high-end applications. This feature article summarizes the different methodologies that have been developed to obtain self-assembled peptide-inorganic nanoparticle hybrid architectures, and discusses how the proper encoding of the peptide sequences can be used for tailoring the architecture and/or functionality of the final systems. We also describe the applications of these hybrid superstructures in different fields, with a brief look at future possibilities towards the development of new functional hybrid materials.
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Affiliation(s)
- Claudia Pigliacelli
- Departamento de Química, Facultade de Ciencias and Centro de Investigacións Científicas Avanzadas (CICA), Universidade da Coruña, 15071 A Coruña, Spain.
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18
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Abstract
Luminescent nanomaterials have emerged as attractive candidates for sensing, catalysis and bioimaging applications in recent years. For practical use in bioimaging, nanomaterials with high photoluminescence, quantum yield, photostability and large Stokes shifts are needed. While offering high photoluminescence and quantum yield, semiconductor quantum dots suffer from toxicity and are susceptible to oxidation. In this context, atomically precise gold nanoclusters protected by thiol monolayers have emerged as a new class of luminescent nanomaterials. Low toxicity, bioavailability, photostability as well as tunable size, composition, and optoelectronic properties make them suitable for bioimaging and biosensing applications. In this review, an overview of the sensing of pathogens, and of in vitro and in vivo bioimaging using luminescent gold nanoclusters along with the limitations with selected examples are discussed.
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Affiliation(s)
- Nonappa
- Department of Applied Physics, Aalto University School of Science, Puumiehenkuja 2, FI-02150, Espoo, Finland
- Bioproducts and Biosystems, Aalto University School of Chemical Engineering, Kemistintie 1, FI-02150, Espoo, Finland
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19
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Buntara Sanjeeva K, Pigliacelli C, Gazzera L, Dichiarante V, Baldelli Bombelli F, Metrangolo P. Halogen bond-assisted self-assembly of gold nanoparticles in solution and on a planar surface. Nanoscale 2019; 11:18407-18415. [PMID: 31576886 DOI: 10.1039/c9nr07054k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Halogen bonding (XB) has been shown to be a powerful tool for promoting molecular self-assembly in different fields. The use of XB for noncovalent assembly of inorganic nanoparticles (NP) is, instead, quite limited, considering how extensively other interactions (i.e., electrostatic forces, hydrophobic effect, hydrogen bonding, etc.) have been exploited to modulate and program NP self-assembly. Here, we designed and synthesized XB-capable organic ligands that were efficiently used to functionalize the surface of gold NPs (AuNPs). XB-assisted AuNP self-assembly was attained in solution mixing AuNPs bearing XB-donor ligands with ditopic XB-acceptor molecules and AuNPs functionalized with XB-acceptor moieties. Likewise, a preliminary study of XB-driven adsorption of these AuNPs on surface was performed via Quartz Crystal Microbalance with Dissipation Monitoring (QCM-D), used as an in situ tool for measuring mass changes upon XB-driven self-assembly.
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Affiliation(s)
- Kavitha Buntara Sanjeeva
- Laboratory of Supramolecular and BioNano Materials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano Via L. Mancinelli 7, 20131 Milan, Italy.
| | - Claudia Pigliacelli
- Hyber Center of Excellence, Department of Applied Physics, Aalto University, Puumiehenkuja 2, FI-00076 Espoo, Finland.
| | - Lara Gazzera
- Laboratory of Supramolecular and BioNano Materials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano Via L. Mancinelli 7, 20131 Milan, Italy.
| | - Valentina Dichiarante
- Laboratory of Supramolecular and BioNano Materials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano Via L. Mancinelli 7, 20131 Milan, Italy.
| | - Francesca Baldelli Bombelli
- Laboratory of Supramolecular and BioNano Materials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano Via L. Mancinelli 7, 20131 Milan, Italy.
| | - Pierangelo Metrangolo
- Laboratory of Supramolecular and BioNano Materials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano Via L. Mancinelli 7, 20131 Milan, Italy. and Hyber Center of Excellence, Department of Applied Physics, Aalto University, Puumiehenkuja 2, FI-00076 Espoo, Finland.
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20
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Pigliacelli C, Sanjeeva KB, Nonappa, Pizzi A, Gori A, Bombelli FB, Metrangolo P. In Situ Generation of Chiroptically-Active Gold-Peptide Superstructures Promoted by Iodination. ACS Nano 2019; 13:2158-2166. [PMID: 30649859 PMCID: PMC6396319 DOI: 10.1021/acsnano.8b08805] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 01/10/2019] [Indexed: 10/07/2023]
Abstract
Peptide-mediated routes to the synthesis of plasmonic nanoparticles have been drawing increasing attention for the development of chiroptically active nanoscale architectures. However, designing a multifunctional peptide able to drive the formation of structurally defined nanomaterials endowed with specific functionalities is still challenging. In this work, iodination has been devised as a strategy to strengthen Au-reduction capability of the amyloidogenic peptide DFNKF and combine it with its distinctive self-assembly features. Thanks to the Au-mediated C-I activation on the phenylalanine iodobenzenes, the peptides yield efficient Au-reduction ability promoting the synthesis of Au nanoparticles, and simultaneously working as templates for their spontaneous self-assembly into spherical superstructures endowed with chiroptical activities. The reaction occurs in situ through a one-pot process in aqueous media. The generality of this approach has been demonstrated using an iodinated derivative of the peptide KLVFF, which also showed reducing and templating abilities forming chiroptically active helical superstructures decorated with Au nanoparticles.
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Affiliation(s)
- Claudia Pigliacelli
- Hyber
Center of Excellence, Department of Applied Physics, Aalto University, Puumiehenkuja
2, FI-00076 Espoo, Finland
| | - Kavitha Buntara Sanjeeva
- Laboratory
of Supramolecular and Bio-Nanomaterials (SBNLab), Department of Chemistry,
Materials, and Chemical Engineering “Giulio Natta”, Politecnico di Milano, via L. Mancinelli 7, 20131 Milano, Italy
| | - Nonappa
- Hyber
Center of Excellence, Department of Applied Physics, Aalto University, Puumiehenkuja
2, FI-00076 Espoo, Finland
| | - Andrea Pizzi
- Laboratory
of Supramolecular and Bio-Nanomaterials (SBNLab), Department of Chemistry,
Materials, and Chemical Engineering “Giulio Natta”, Politecnico di Milano, via L. Mancinelli 7, 20131 Milano, Italy
| | - Alessandro Gori
- Istituto
di Chimica del Riconoscimento Molecolare, CNR, via M. Bianco 9, 20131 Milano, Italy
| | - Francesca Baldelli Bombelli
- Laboratory
of Supramolecular and Bio-Nanomaterials (SBNLab), Department of Chemistry,
Materials, and Chemical Engineering “Giulio Natta”, Politecnico di Milano, via L. Mancinelli 7, 20131 Milano, Italy
| | - Pierangelo Metrangolo
- Hyber
Center of Excellence, Department of Applied Physics, Aalto University, Puumiehenkuja
2, FI-00076 Espoo, Finland
- Laboratory
of Supramolecular and Bio-Nanomaterials (SBNLab), Department of Chemistry,
Materials, and Chemical Engineering “Giulio Natta”, Politecnico di Milano, via L. Mancinelli 7, 20131 Milano, Italy
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21
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Xiao Y, Zhang Q, Wang Y, Wang B, Sun F, Han Z, Feng Y, Yang H, Meng S, Wang Z. Dual-functional protein for one-step production of a soluble and targeted fluorescent dye. Theranostics 2018; 8:3111-3125. [PMID: 29896306 PMCID: PMC5996361 DOI: 10.7150/thno.24613] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 03/17/2018] [Indexed: 01/17/2023] Open
Abstract
Low water solubility and poor selectivity are two fundamental limitations that compromise applications of near-infrared (NIR) fluorescent probes. Methods: Here, a simple strategy that can resolve these problems simultaneously was developed by using a novel hybrid protein named RGD-HFBI that is produced by fusion of hydrophobin HFBI and arginine-glycine-aspartic acid (RGD) peptide. This unique hybrid protein inherits self-assembly and targeting functions from HFBI and RGD peptide respectively. Results: Boron-dipyrromethene (BODIPY) used as a model NIR dye can be efficiently dispersed in the RGD-HFBI solution by simple mixing and sonication for 30 min. The data shows that self-assembled RGD-HFBI forms a protein nanocage by using the BODIPY as the assembly template. Cell uptake assay proves that RGD-HFBI/BODIPY can efficiently stain αvβ3 integrin-positive cancer cells. Finally, in vivo affinity tests fully demonstrate that the soluble RGD-HFBI/BODIPY complex selectively targets and labels tumor sites of tumor-bearing mice due to the high selectivity of the RGD peptide. Conclusion: Our one-step strategy using dual-functional RGD-HFBI opens a novel route to generate soluble and targeted NIR fluorescent dyes in a very simple and efficient way and may be developed as a general strategy to broaden their applications.
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Affiliation(s)
- Yunjie Xiao
- School of Life Sciences, Tianjin University, Tianjin 300072, China
| | - Qian Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yanyan Wang
- College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Bin Wang
- School of Life Sciences, Tianjin University, Tianjin 300072, China
| | - Fengnan Sun
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Ziyu Han
- College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Yaqing Feng
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Haitao Yang
- School of Life Sciences, Tianjin University, Tianjin 300072, China
- Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin 300457, China
| | - Shuxian Meng
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Zefang Wang
- School of Life Sciences, Tianjin University, Tianjin 300072, China
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