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Bunje H, Li Y, Liz-Marzán LM, Millstone JE, Nie G, Shmakov SN, Weiss PS. Putting the World Back Together and Announcing the 2021 ACS Nano Award Lecture Laureates. ACS Nano 2021; 15:7837-7839. [PMID: 34034424 DOI: 10.1021/acsnano.1c04048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
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Bunje H, Glotzer S, Li Y, Samori P, Weil T, Shmakov SN, Weiss PS. Announcing the 2020 ACS Nano Award Lecture Laureates. ACS Nano 2020; 14:1213-1215. [PMID: 32098015 DOI: 10.1021/acsnano.0c01221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
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Bunje H, Millstone JE, Nie G, Wee ATS, Weil T, Shmakov SN, Weiss PS. Announcing the 2019 ACS Nano Award Lecture Laureates. ACS Nano 2019; 13:4859-4861. [PMID: 31137181 DOI: 10.1021/acsnano.9b03722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
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Abstract
Vesicle-templated nanocapsules offer a unique combination of properties enabled by robust shells with single-nanometer thickness containing programmed uniform pores capable of fast and selective mass transfer. These capsules emerged as a versatile platform for creating functional devices, such as nanoreactors, nanosensors, and containers for the delivery of drugs and imaging agents. Nanocapsules are synthesized by a directed assembly method using self-assembled bilayers of vesicles as temporary scaffolds. In this approach, hydrophobic building blocks are loaded into the hydrophobic interior of vesicles formed from lipids or surfactants. Pore-forming templates are codissolved with the monomers and cross-linkers in the interior of the bilayer. The polymerization forms a cross-linked shell with embedded pore-forming templates. Removal of the surfactant scaffold and pore-forming templates leads to free-standing nanocapsules with shells containing uniform imprinted nanopores. Development of reliable and scalable synthetic methods for the modular construction of capsules with tunable properties has opened the opportunity to pursue practical applications of nanocapsules. In this Account, we discuss how unique properties of vesicle-templated nanocapsules translate into the creation of functional nanodevices. Specifically, we focus the conversation on applications aiming at the delivery of drugs and imaging agents, creation of fast-acting and selective nanoreactors, and fabrication of nanoprobes for sensing and imaging. We present a brief overview of the synthesis of nanocapsules with an emphasis on recent developments leading to robust synthetic methods including the synthesis under physiological conditions and creation of biodegradable nanocapsules. We then highlight unique properties of nanocapsules essential for practical applications, such as precise control of pore size and chemical environment, selective permeability, and ultrafast transport through the pores. We discuss new motifs for catch and release of small molecules with porous nanocapsules based on controlling the microenvironment inside the nanocapsules, regulating the charge on the orifice of nanopores in the shells, and reversible synergistic action of host and guest forming a supramolecular complex in nanocapsules. We demonstrate successful creation of fast-acting and selective nanoreactors by encapsulation of diverse homogeneous and nanoparticle catalysts. Due to unhindered flow of substrates and products through the nanopores, encapsulation did not compromise catalytic efficiency and, in fact, improved the stability of entrapped catalysts. We present robust nanoprobes based on nanocapsules with entrapped sensing agents and show how the encapsulation resulted in selective measurements with fast response times in challenging conditions, such as small volumes and complex mixtures. Throughout this Account, we highlight the advantages of encapsulation and discuss the opportunities for future design of nanodevices.
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Affiliation(s)
- Sergey A. Dergunov
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, United States
| | - Mariya D. Kim
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, United States
| | - Sergey N. Shmakov
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, United States
| | - Eugene Pinkhassik
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut 06269-3060, United States
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Shmakov SN, Weiss PS. Announcing the 2018 ACS Nano Award Lecture Laureates. ACS Nano 2018; 12:5067-5068. [PMID: 29911860 DOI: 10.1021/acsnano.8b04497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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Richter AG, Dergunov SA, Kim MD, Shmakov SN, Pingali SV, Urban VS, Liu Y, Pinkhassik E. Unraveling the Single-Nanometer Thickness of Shells of Vesicle-Templated Polymer Nanocapsules. J Phys Chem Lett 2017; 8:3630-3636. [PMID: 28715200 DOI: 10.1021/acs.jpclett.7b01149] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Vesicle-templated nanocapsules have emerged as a viable platform for diverse applications. Shell thickness is a critical structural parameter of nanocapsules, where the shell plays a crucial role providing mechanical stability and control of permeability. Here we used small-angle neutron scattering (SANS) to determine the thickness of freestanding and surfactant-stabilized nanocapsules. Despite being at the edge of detectability, we were able to show the polymer shell thickness to be typically 1.0 ± 0.1 nm, which places vesicle-templated nanocapsules among the thinnest materials ever created. The extreme thinness of the shells has implications for several areas: mass-transport through nanopores is relatively unimpeded; pore-forming molecules are not limited to those spanning the entire bilayer; the internal volume of the capsules is maximized; and insight has been gained on how polymerization occurs in the confined geometry of a bilayer scaffold, being predominantly located at the phase-separated layer of monomers and cross-linkers between the surfactant leaflets.
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Affiliation(s)
- Andrew G Richter
- Department of Physics and Astronomy, Valparaiso University , Valparaiso, Indiana 46383, United States
| | - Sergey A Dergunov
- Department of Chemistry, University of Connecticut , 55 North Eagleville Rd, Storrs, Connecticut 06269-3060, United States
| | - Mariya D Kim
- Department of Chemistry, University of Connecticut , 55 North Eagleville Rd, Storrs, Connecticut 06269-3060, United States
| | - Sergey N Shmakov
- Department of Chemistry, University of Connecticut , 55 North Eagleville Rd, Storrs, Connecticut 06269-3060, United States
| | - Sai Venkatesh Pingali
- Center for Structural Molecular Biology, Oak Ridge National Laboratory , P.O. Box 2008 MS-6430, Oak Ridge, Tennessee 37831-6430, United States
| | - Volker S Urban
- Center for Structural Molecular Biology, Oak Ridge National Laboratory , P.O. Box 2008 MS-6430, Oak Ridge, Tennessee 37831-6430, United States
| | - Yun Liu
- Department of Chemical and Biological Engineering, University of Delaware , Newark, Delaware 19716, United States
- Center for Neutron Science, National Institute of Standards and Technology , 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Eugene Pinkhassik
- Department of Chemistry, University of Connecticut , 55 North Eagleville Rd, Storrs, Connecticut 06269-3060, United States
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Dergunov SA, Khabiyev AT, Shmakov SN, Kim MD, Ehterami N, Weiss MC, Birman VB, Pinkhassik E. Encapsulation of Homogeneous Catalysts in Porous Polymer Nanocapsules Produces Fast-Acting Selective Nanoreactors. ACS Nano 2016; 10:11397-11406. [PMID: 28024370 DOI: 10.1021/acsnano.6b06735] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Nanoreactors were created by entrapping homogeneous catalysts in hollow nanocapsules with 200 nm diameter and semipermeable nanometer-thin shells. The capsules were produced by the polymerization of hydrophobic monomers in the hydrophobic interior of the bilayers of self-assembled surfactant vesicles. Controlled nanopores in the shells of nanocapsules ensured long-term retention of the catalysts coupled with the rapid flow of substrates and products in and out of nanocapsules. The study evaluated the effect of encapsulation on the catalytic activity and stability of five different catalysts. Comparison of kinetics of five diverse reactions performed in five different solvents revealed the same reaction rates for free and encapsulated catalysts. Identical reaction kinetics confirmed that placement of catalysts in the homogeneous interior of polymer nanocapsules did not compromise catalytic efficiency. Encapsulated organometallic catalysts showed no loss of metal ions from nanocapsules suggesting stabilization of the complexes was provided by nanocapsules. Controlled permeability of the shells of nanocapsules enabled size-selective catalytic reactions.
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Affiliation(s)
- Sergey A Dergunov
- Department of Chemistry, University of Connecticut , 55 North Eagleville Rd, Storrs, Connecticut 06269-3060, United States
| | - Alibek T Khabiyev
- Kazakh National Research Technical University , 22 Satpayev St., Almaty 050013, Kazakhstan
| | - Sergey N Shmakov
- Department of Chemistry, University of Connecticut , 55 North Eagleville Rd, Storrs, Connecticut 06269-3060, United States
| | - Mariya D Kim
- Department of Chemistry, University of Connecticut , 55 North Eagleville Rd, Storrs, Connecticut 06269-3060, United States
| | - Nasim Ehterami
- Department of Chemistry, Saint Louis University , 3501 Laclede Avenue, St. Louis, Missouri 63103, United States
| | - Mary Clare Weiss
- Department of Chemistry, Saint Louis University , 3501 Laclede Avenue, St. Louis, Missouri 63103, United States
| | - Vladimir B Birman
- Department of Chemistry, Washington University in St. Louis , One Brookings Drive, St. Louis, Missouri 63130, United States
| | - Eugene Pinkhassik
- Department of Chemistry, University of Connecticut , 55 North Eagleville Rd, Storrs, Connecticut 06269-3060, United States
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Jia Y, Shmakov SN, Pinkhassik E. Controlled Permeability in Porous Polymer Nanocapsules Enabling Size- and Charge-Selective SERS Nanoprobes. ACS Appl Mater Interfaces 2016; 8:19755-63. [PMID: 27186787 DOI: 10.1021/acsami.6b05522] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Nanoprobes for surface-enhanced Raman scattering (SERS) were prepared by creating nanorattles, or yolk-shell structures, containing gold or silver nanoparticles entrapped in porous hollow polymer nanocapsules. Controlled permeability of the shells of nanocapsules, achieved by controlling the pore size and/or shell surface functionalization, resulted in size- and charge-selective SERS analyses. For example, a trace amount of phenanthroline, a model analyte, was detected in human blood plasma without preprocessing of plasma samples. Comparison with commercially available nanoparticles showed superior performance of the newly prepared nanorattle structures.
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Affiliation(s)
- Ying Jia
- Department of Chemistry, Saint Louis University , 3501 Laclede Ave., St. Louis, Missouri 63103, United States
| | - Sergey N Shmakov
- Department of Chemistry, University of Connecticut , 55 North Eagleville Road, Storrs, Connecticut 06269, United States
| | - Eugene Pinkhassik
- Department of Chemistry, University of Connecticut , 55 North Eagleville Road, Storrs, Connecticut 06269, United States
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Dergunov SA, Kim MD, Shmakov SN, Richter AG, Weigand S, Pinkhassik E. Inside Back Cover: Tuning Optical Properties of Encapsulated Clusters of Gold Nanoparticles through Stimuli-Triggered Controlled Aggregation (Chem. Eur. J. 23/2016). Chemistry 2016. [DOI: 10.1002/chem.201602071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Sergey A. Dergunov
- Department of Chemistry; University of Connecticut; 55 North Eagleville Road Storrs 06269 CT USA
| | - Mariya D. Kim
- Department of Chemistry; University of Connecticut; 55 North Eagleville Road Storrs 06269 CT USA
| | - Sergey N. Shmakov
- Department of Chemistry; University of Connecticut; 55 North Eagleville Road Storrs 06269 CT USA
| | - Andrew G. Richter
- Department of Physics and Astronomy; Valparaiso University; Valparaiso IN 46383 USA
| | - Steven Weigand
- DND-CAT; Advanced Photon Source, ANL Bldg. 432; 9700 S. Cass Ave. Argonne Illinois 60439 USA
| | - Eugene Pinkhassik
- Department of Chemistry; University of Connecticut; 55 North Eagleville Road Storrs 06269 CT USA
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Dergunov SA, Kim MD, Shmakov SN, Richter AG, Weigand S, Pinkhassik E. Tuning Optical Properties of Encapsulated Clusters of Gold Nanoparticles through Stimuli‐Triggered Controlled Aggregation. Chemistry 2016; 22:7702-5. [DOI: 10.1002/chem.201601072] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Indexed: 12/18/2022]
Affiliation(s)
- Sergey A. Dergunov
- Department of Chemistry University of Connecticut 55 North Eagleville Road Storrs 06269 CT USA
| | - Mariya D. Kim
- Department of Chemistry University of Connecticut 55 North Eagleville Road Storrs 06269 CT USA
| | - Sergey N. Shmakov
- Department of Chemistry University of Connecticut 55 North Eagleville Road Storrs 06269 CT USA
| | - Andrew G. Richter
- Department of Physics and Astronomy Valparaiso University Valparaiso IN 46383 USA
| | - Steven Weigand
- DND-CAT Advanced Photon Source, ANL Bldg. 432 9700 S. Cass Ave. Argonne Illinois 60439 USA
| | - Eugene Pinkhassik
- Department of Chemistry University of Connecticut 55 North Eagleville Road Storrs 06269 CT USA
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Jia Y, Shmakov SN, Register P, Pinkhassik E. Back Cover: Size-Selective Yolk-Shell Nanoreactors with Nanometer-Thin Porous Polymer Shells (Chem. Eur. J. 36/2015). Chemistry 2015. [DOI: 10.1002/chem.201583604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Kim MD, Dergunov SA, Richter AG, Durbin J, Shmakov SN, Jia Y, Kenbeilova S, Orazbekuly Y, Kengpeiil A, Lindner E, Pingali SV, Urban VS, Weigand S, Pinkhassik E. Facile directed assembly of hollow polymer nanocapsules within spontaneously formed catanionic surfactant vesicles. Langmuir 2014; 30:7061-7069. [PMID: 24341533 DOI: 10.1021/la404026w] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Surfactant vesicles containing monomers in the interior of the bilayer were used to template hollow polymer nanocapsules. This study investigated the formation of surfactant/monomer assemblies by two loading methods, concurrent loading and diffusion loading. The assembly process and the resulting aggregates were investigated with dynamic light scattering, small angle neutron scattering, and small-angle X-ray scattering. Acrylic monomers formed vesicles with a mixture of cationic and anionic surfactants in a broad range of surfactant ratios. Regions with predominant formation of vesicles were broader for compositions containing acrylic monomers compared with blank surfactants. This observation supports the stabilization of the vesicular structure by acrylic monomers. Diffusion loading produced monomer-loaded vesicles unless vesicles were composed from surfactants at the ratios close to the boundary of a vesicular phase region on a phase diagram. Both concurrent-loaded and diffusion-loaded surfactant/monomer vesicles produced hollow polymer nanocapsules upon the polymerization of monomers in the bilayer followed by removal of surfactant scaffolds.
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Affiliation(s)
- Mariya D Kim
- Department of Chemistry, Saint Louis University , 3501 Laclede Avenue, St. Louis, Missouri 63103, United States
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Esipov AV, Kislenko AM, Eriashev FA, Bespal'ko VI, Shmakov SN. [Acute mesenteric lymphadenitis: modern approaches to differential diagnostics and a choice of treatment tactics (review of literature)]. Voen Med Zh 2010; 331:27-31. [PMID: 20731093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The problem of diagnostics acute mesenteric a lymphadenitis is actual and till now not solved. Use laparoscopy techniques in differential diagnostics of acute surgical diseases of an abdominal cavity has opened new prospects. Acute mesenteric the lymphadenitis in clinical practice can be surveyed as a polyetiological syndrome of the enlarged mesenteric/lymph nodes. If acute mesenteric the lymphadenitis is implication of infectious diseases medicament therapy is spent. A biopsy of a lymph node with the subsequent histological research at an infectious disease not informative. At verification of tubercular, oncology and autoimmune diseases is the basic method of diagnostics.
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Shmakov SN, Pinkhassik E. Simultaneous templating of polymer nanocapsules and entrapped silver nanoparticles. Chem Commun (Camb) 2010; 46:7346-8. [DOI: 10.1039/c0cc01988g] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Mun GA, Nurkeeva ZS, Akhmetkalieva GT, Shmakov SN, Khutoryanskiy VV, Cheon Lee S, Park K. Novel temperature-responsive water-soluble copolymers based on 2-hydroxyethylacrylate and vinyl butyl ether and their interactions with poly(carboxylic acids). ACTA ACUST UNITED AC 2005. [DOI: 10.1002/polb.20695] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Mun GA, Khutoryanskiy VV, Akhmetkalieva GT, Shmakov SN, Dubolazov AV, Nurkeeva ZS, Park K. Interpolymer complexes of poly(acrylic acid) with poly(2-hydroxyethyl acrylate) in aqueous solutions. Colloid Polym Sci 2004. [DOI: 10.1007/s00396-004-1115-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Antukh EA, Shmakov SN, Slovakovskiĭ SS, Bazhukov OA. [Difficulties in diagnosis of malaria in servicemen]. Voen Med Zh 2001; 322:59-62. [PMID: 11547669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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