1
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Beck-Broichsitter M. Bioinspired zwitterionic triblock copolymers designed for colloidal drug delivery: 1 - Synthesis and characterization. Colloids Surf B Biointerfaces 2024; 237:113856. [PMID: 38554627 DOI: 10.1016/j.colsurfb.2024.113856] [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: 01/08/2024] [Revised: 03/12/2024] [Accepted: 03/16/2024] [Indexed: 04/02/2024]
Abstract
This study describes the synthesis and characterization of triblock copolymers composed of poly[2-(methacryloyloxy)ethyl phosphorylcholine]-block-poly(propylene glycol)-block-poly[2-(methacryloyloxy)ethyl phosphorylcholine] (PMPC-b-PPG-b-PMPC) intended for, but not limited to, applications in colloidal drug delivery. Atom transfer radical polymerization led to a library of well-defined PMPC-b-PPG-b-PMPC triblock copolymers with varying overall molecular weight (ranging from ∼5 to ∼25 kDa) and composition (weight fraction of the hydrophobic PPG block ranged from ∼10 to ∼50 wt%). The properties of the synthesized triblock copolymers were linked to the PPG to bioinspired PMPC block(s) ratio, where the more hydrophilic species showed adequate aqueous solubility, surface activity and biocompatibility (non-toxicity) in in vitro cell culture. Their amphiphilic nature makes them adsorb efficiently onto polymer nanoparticles, what improves colloidal stability under stress conditions and, furthermore, depletes proteins from unwanted adsorption to the underlying surface. The current findings strengthen our insights into structure-function relationships of PMPC-based coatings leading to protecting shells on relevant polymer nanoparticle formulations. PMPC-b-PPG-b-PMPC triblock copolymers composed of a hydrophobic PPG block of 2-4 kDa flanked by two hydrophilic PMPC blocks each of 5-10 kDa seem to be most promising to enhance colloidal drug delivery vehicles.
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Affiliation(s)
- Moritz Beck-Broichsitter
- Department of Pharmaceutics and Biopharmacy, Philipps-Universität, Marburg, Germany; Medical Clinic II, Department of Internal Medicine, Justus-Liebig-Universität, Giessen, Germany.
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2
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Chauhan G, Chopra V, Alvarado AG, Gómez Siono JA, Madou MJ, Martinez-Chapa SO, Kulkarni MM. Doxorubicin Conjugated γ-Globulin Functionalised Gold Nanoparticles: A pH-Responsive Bioinspired Nanoconjugate Approach for Advanced Chemotherapeutics. Pharmaceutics 2024; 16:208. [PMID: 38399262 PMCID: PMC10893120 DOI: 10.3390/pharmaceutics16020208] [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: 10/10/2023] [Revised: 12/13/2023] [Accepted: 12/13/2023] [Indexed: 02/25/2024] Open
Abstract
Developing successful nanomedicine hinges on regulating nanoparticle surface interactions within biological systems, particularly in intravenous nanotherapeutics. We harnessed the surface interactions of gold nanoparticles (AuNPs) with serum proteins, incorporating a γ-globulin (γG) hard surface corona and chemically conjugating Doxorubicin to create an innovative hybrid anticancer nanobioconjugate, Dox-γG-AuNPs. γG (with an isoelectric point of ~7.2) enhances cellular uptake and exhibits pH-sensitive behaviour, favouring targeted cancer cell drug delivery. In cell line studies, Dox-γG-AuNPs demonstrated a 10-fold higher cytotoxic potency compared to equivalent doxorubicin concentrations, with drug release favoured at pH 5.5 due to the γ-globulin corona's inherent pH sensitivity. This bioinspired approach presents a novel strategy for designing hybrid anticancer therapeutics. Our study also explored the intricacies of the p53-mediated ROS pathway's role in regulating cell fate, including apoptosis and necrosis, in response to these treatments. The pathway's delicate balance of ROS emerged as a critical determinant, warranting further investigation to elucidate its mechanisms and implications. Overall, leveraging the robust γ-globulin protein corona on AuNPs enhances biostability in harsh serum conditions, augments anticancer potential within pH-sensitive environments, and opens promising avenues for bioinspired drug delivery and the design of novel anticancer hybrids with precise targeting capabilities.
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Affiliation(s)
- Gaurav Chauhan
- School of Engineering and Sciences, Tecnologico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Monterrey 64849, NL, Mexico; (V.C.); amealvarado-@hotmail.com (A.G.A.); (M.J.M.); (S.O.M.-C.)
| | - Vianni Chopra
- School of Engineering and Sciences, Tecnologico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Monterrey 64849, NL, Mexico; (V.C.); amealvarado-@hotmail.com (A.G.A.); (M.J.M.); (S.O.M.-C.)
| | - América García Alvarado
- School of Engineering and Sciences, Tecnologico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Monterrey 64849, NL, Mexico; (V.C.); amealvarado-@hotmail.com (A.G.A.); (M.J.M.); (S.O.M.-C.)
| | - Jocelyn Alexandra Gómez Siono
- School of Engineering and Sciences, Tecnologico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Monterrey 64849, NL, Mexico; (V.C.); amealvarado-@hotmail.com (A.G.A.); (M.J.M.); (S.O.M.-C.)
| | - Marc J. Madou
- School of Engineering and Sciences, Tecnologico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Monterrey 64849, NL, Mexico; (V.C.); amealvarado-@hotmail.com (A.G.A.); (M.J.M.); (S.O.M.-C.)
- Department of Mechanical and Aerospace Engineering, University of California Irvine, Irvine, CA 92697, USA
| | - Sergio Omar Martinez-Chapa
- School of Engineering and Sciences, Tecnologico de Monterrey, Av. Eugenio Garza Sada 2501 Sur, Monterrey 64849, NL, Mexico; (V.C.); amealvarado-@hotmail.com (A.G.A.); (M.J.M.); (S.O.M.-C.)
| | - Manish M. Kulkarni
- Centre for Nanoscience, Indian Institute of Technology Kanpur, Kanpur 208016, India
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3
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Wechsler ME, Jocelyn Dang HKH, Simmonds SP, Bahrami K, Wyse JM, Dahlhauser SD, Reuther JF, VandeWalle AN, Anslyn EV, Peppas NA. Electrostatic and Covalent Assemblies of Anionic Hydrogel-Coated Gold Nanoshells for Detection of Dry Eye Biomarkers in Human Tears. NANO LETTERS 2021; 21:8734-8740. [PMID: 34623161 PMCID: PMC8588787 DOI: 10.1021/acs.nanolett.1c02941] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Although dry eye is highly prevalent, many challenges exist in diagnosing the symptom and related diseases. For this reason, anionic hydrogel-coated gold nanoshells (AuNSs) were used in the development of a label-free biosensor for detection of high isoelectric point tear biomarkers associated with dry eye. A custom, aldehyde-functionalized oligo(ethylene glycol)acrylate (Al-OEGA) was included in the hydrogel coating to enhance protein recognition through the formation of dynamic covalent (DC) imine bonds with solvent-accessible lysine residues present on the surface of select tear proteins. Our results demonstrated that hydrogel-coated AuNSs, composed of monomers that form ionic and DC bonds with select tear proteins, greatly enhance protein recognition due to changes in the maximum localized surface plasmon resonance wavelength exhibited by AuNSs in noncompetitive and competitive environments. Validation of the developed biosensor in commercially available pooled human tears revealed the potential for clinical translation to establish a method for dry eye diagnosis.
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Affiliation(s)
- Marissa E Wechsler
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, Austin, Texas 78712, United States
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - H K H Jocelyn Dang
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Susana P Simmonds
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Kiana Bahrami
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Jordyn M Wyse
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Samuel D Dahlhauser
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - James F Reuther
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
- Department of Chemistry, University of Massachusetts Lowell, Lowell, Massachusetts 01854, United States
| | - Abigail N VandeWalle
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Eric V Anslyn
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Nicholas A Peppas
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, The University of Texas at Austin, Austin, Texas 78712, United States
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, Texas 78712, United States
- Department of Surgery and Perioperative Care, Dell Medical School, The University of Texas at Austin, Austin, Texas 78712, United States
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4
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Yataka Y, Tanaka S, Sawada T, Serizawa T. Mechanically robust crystalline monolayer assemblies of oligosaccharide-based amphiphiles on water surfaces. Chem Commun (Camb) 2019; 55:11346-11349. [DOI: 10.1039/c9cc05629g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cellulose oligomers with a terminal alkyl group at the reducing end formed mechanically robust crystalline monolayers via self-assembly against water surfaces from aqueous solutions in air.
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Affiliation(s)
- Yusuke Yataka
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - Shoki Tanaka
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - Toshiki Sawada
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
- Precursory Research for Embryonic Science and Technology
| | - Takeshi Serizawa
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
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5
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Lee S, Lee C. High-density quantum dots composites and its photolithographic patterning applications. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4513] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Seonwoo Lee
- Department of Electrical and Computer Engineering, Inter-university Semiconductor Research Center; Seoul National University; 1 Gwanakro, Gwanak-gu Seoul 08826 Republic of Korea
| | - Changhee Lee
- Department of Electrical and Computer Engineering, Inter-university Semiconductor Research Center; Seoul National University; 1 Gwanakro, Gwanak-gu Seoul 08826 Republic of Korea
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6
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Culver HR, Wechsler ME, Peppas NA. Label-Free Detection of Tear Biomarkers Using Hydrogel-Coated Gold Nanoshells in a Localized Surface Plasmon Resonance-Based Biosensor. ACS NANO 2018; 12:9342-9354. [PMID: 30204412 PMCID: PMC6156935 DOI: 10.1021/acsnano.8b04348] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The dependence of the localized surface plasmon resonance (LSPR) of noble-metal nanomaterials on refractive index makes LSPR a useful, label-free signal transduction strategy for biosensing. In particular, by decorating gold nanomaterials with molecular recognition agents, analytes of interest can be trapped near the surface, resulting in an increased refractive index surrounding the nanomaterial, and, consequently, a red shift in the LSPR wavelength. Ionic poly( N-isopropylacrylamide- co-methacrylic acid) (PNM) hydrogels were used as protein receptors because PNM nanogels exhibit a large increase in refractive index upon protein binding. Specifically, PNM hydrogels were synthesized on the surface of silica gold nanoshells (AuNSs). This composite material (AuNS@PNM) was used to detect changes in the concentration of two protein biomarkers of chronic dry eye: lysozyme and lactoferrin. Both of these proteins have high isoelectric points, resulting in electrostatic attraction between the negatively charged PNM hydrogels and positively charged proteins. Upon binding lysozyme or lactoferrin, AuNS@PNM exhibits large, concentration-dependent red shifts in LSPR wavelength, which enabled the detection of clinically relevant concentration changes of both biomarkers in human tears. The LSPR-based biosensor described herein has potential utility as an affordable screening tool for chronic dry eye and associated conditions.
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Affiliation(s)
- Heidi R. Culver
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine
- Department of Biomedical Engineering
| | - Marissa E. Wechsler
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine
- Department of Biomedical Engineering
| | - Nicholas A. Peppas
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine
- Department of Biomedical Engineering
- McKetta Department of Chemical Engineering
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy
- Department of Surgery and Perioperative Care, Dell Medical School, The University of Texas at Austin, Austin, TX, 78712, United States
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7
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Cengiz N, Gevrek TN, Sanyal R, Sanyal A. Orthogonal thiol-ene 'click' reactions: a powerful combination for fabrication and functionalization of patterned hydrogels. Chem Commun (Camb) 2018; 53:8894-8897. [PMID: 28740993 DOI: 10.1039/c7cc02298k] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A combination of 'orthogonal' thiol-ene 'click' reactions is utilized for fabrication and functionalization of micro-patterned hydrogels. A furan-protected maleimide-containing parent copolymer is partially activated via the retro Diels-Alder reaction to obtain an 'orthogonally' functionalizable copolymer, where the different functional groups can be exploited for multi-functionalization or fabrication of functional hydrogels using combination of the nucleophilic and radical thiol-ene reactions.
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Affiliation(s)
- N Cengiz
- Department of Chemistry, Bogazici University, 34342 Bebek, Istanbul, Turkey.
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8
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de Vries WC, Tesch M, Studer A, Ravoo BJ. Molecular Recognition and Immobilization of Ligand-Conjugated Redox-Responsive Polymer Nanocontainers. ACS APPLIED MATERIALS & INTERFACES 2017; 9:41760-41766. [PMID: 29140078 DOI: 10.1021/acsami.7b15516] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We present the preparation of ligand-conjugated redox-responsive polymer nanocontainers by the supramolecular decoration of cyclodextrin vesicles with a thin redox-cleavable polymer shell that displays molecular recognition units on its surface. Two widely different recognition motifs (mannose-Concanavalin A and biotin-streptavidin) are compared and the impact of ligand density on the nanocontainer surface as well as an additional functionalization with nonadhesive poly(ethylene glycol) is studied. Aggregation assays, dynamic light scattering, and a fluorometric quantification reveal that the molecular recognition of ligand-conjugated polymer nanocontainers by receptor proteins is strongly affected by the multivalency of interactions and the association strength of the recognition motif. Finally, microcontact printing is used to prepare streptavidin-patterned surfaces, and the specific immobilization of biotin-conjugated nanocontainers is demonstrated. As a prototype of a nanosensor, these tethered nanocontainers can sense a reductive environment and react by releasing a payload.
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Affiliation(s)
- Wilke C de Vries
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster , Corrensstr. 40, D-48149 Münster, Germany
| | - Matthias Tesch
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster , Corrensstr. 40, D-48149 Münster, Germany
| | - Armido Studer
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster , Corrensstr. 40, D-48149 Münster, Germany
| | - Bart Jan Ravoo
- Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster , Corrensstr. 40, D-48149 Münster, Germany
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9
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Ding A, Xu J, Gu G, Lu G, Huang X. PHEA-g-PMMA Well-Defined Graft Copolymer: ATRP Synthesis, Self-Assembly, and Synchronous Encapsulation of Both Hydrophobic and Hydrophilic Guest Molecules. Sci Rep 2017; 7:12601. [PMID: 28974694 PMCID: PMC5626726 DOI: 10.1038/s41598-017-12710-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 09/18/2017] [Indexed: 02/03/2023] Open
Abstract
A series of well-defined amphiphilic graft copolymer bearing a hydrophilic poly(2-hydroxyethyl acrylate) (PHEA) backbone and hydrophobic poly(methyl methacrylate) (PMMA) side chains was synthesized by successive reversible addition-fragmentation chain transfer (RAFT) polymerization and atom transfer radical polymerization (ATRP) through the grafting-from strategy. A well-defined PHEA-based backbone with Cl-containing ATRP initiating group in every repeated unit (Mw/Mn = 1.08), poly(2-hydroxyethyl 2-((2-chloropropanoyloxy)methyl)acrylate) (PHECPMA), was first prepared by RAFT homopolymerization of 2-hydroxyethyl 2-((2-chloropropanoyloxy)methyl)acrylate (HECPMA), a Cl-containing trifunctional acrylate. ATRP of methyl methacrylate was subsequently initiated by PHECPMA homopolymer to afford the target well-defined poly(2-hydroxyethyl acrylate)-graft-poly(methyl methacrylate) (PHEA-g-PMMA) graft copolymers (Mw/Mn ≤ 1.36) with 34 PMMA side chains and 34 pendant hydroxyls in PHEA backbone using CuCl/dHbpy as catalytic system. The critical micelle concentration (cmc) of the obtained graft copolymer was determined by fluorescence spectroscopy using N-phenyl-1-naphthylamine as probe while micellar morphologies in aqueous media were visualized by transmission electron microscopy. Interestingly, PHEA-g-PMMA graft copolymer could self-assemble into large compound micelles rather than common spherical micelles, which can encapsulate hydrophilic rhodamine 6 G and hydrophobic pyrene separately or simultaneously.
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Affiliation(s)
- Aishun Ding
- Department of Materials Science, Fudan University, 220 Handan Road, Shanghai, 200433, People's Republic of China.,Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, People's Republic of China
| | - Jie Xu
- Department of Materials Science, Fudan University, 220 Handan Road, Shanghai, 200433, People's Republic of China
| | - Guangxin Gu
- Department of Materials Science, Fudan University, 220 Handan Road, Shanghai, 200433, People's Republic of China.
| | - Guolin Lu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, People's Republic of China
| | - Xiaoyu Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, People's Republic of China.
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10
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Clegg JR, Zhong JX, Irani AS, Gu J, Spencer DS, Peppas NA. Student award for outstanding research winner in the Ph.D. category for the 2017 society for biomaterials annual meeting and exposition, april 5-8, 2017, Minneapolis, Minnesota: Characterization of protein interactions with molecularly imprinted hydrogels that possess engineered affinity for high isoelectric point biomarkers. J Biomed Mater Res A 2017; 105:1565-1574. [PMID: 28177574 DOI: 10.1002/jbm.a.36029] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 01/18/2017] [Accepted: 01/19/2017] [Indexed: 01/07/2023]
Abstract
Molecularly imprinted polymers (MIPs) with selective affinity for protein biomarkers could find extensive utility as environmentally robust, cost-efficient biomaterials for diagnostic and therapeutic applications. In order to develop recognitive, synthetic biomaterials for prohibitively expensive protein biomarkers, we have developed a molecular imprinting technique that utilizes structurally similar, analogue proteins. Hydrogel microparticles synthesized by molecular imprinting with trypsin, lysozyme, and cytochrome c possessed an increased affinity for alternate high isoelectric point biomarkers both in isolation and plasma-mimicking adsorption conditions. Imprinted and non-imprinted P(MAA-co-AAm-co-DEAEMA) microgels containing PMAO-PEGMA functionalized polycaprolactone nanoparticles were net-anionic, polydisperse, and irregularly shaped. MIPs and control non-imprinted polymers (NIPs) exhibited regions of Freundlich and BET isotherm adsorption behavior in a range of non-competitive protein solutions, where MIPs exhibited enhanced adsorption capacity in the Freundlich isotherm regions. In a competitive condition, imprinting with analogue templates (trypsin, lysozyme) increased the adsorption capacity of microgels for cytochrome c by 162% and 219%, respectively, as compared to a 122% increase provided by traditional bulk imprinting with cytochrome c. Our results suggest that molecular imprinting with analogue protein templates is a viable synthetic strategy for enhancing hydrogel-biomarker affinity and promoting specific protein adsorption behavior in biological fluids. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 1565-1574, 2017.
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Affiliation(s)
- John R Clegg
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, Texas.,Institute for Biomaterials Drug Delivery and Regenerative Medicine, The University of Texas at Austin, Austin, Texas
| | - Justin X Zhong
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas
| | - Afshan S Irani
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, Texas
| | - Joann Gu
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas
| | - David S Spencer
- Institute for Biomaterials Drug Delivery and Regenerative Medicine, The University of Texas at Austin, Austin, Texas.,McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas
| | - Nicholas A Peppas
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, Texas.,Institute for Biomaterials Drug Delivery and Regenerative Medicine, The University of Texas at Austin, Austin, Texas.,McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas.,Division of Pharmaceutics, College of Pharmacy, The University of Texas at Austin, Austin, Texas.,Department of Surgery and Perioperative Care, Dell Medical School, The University of Texas at Austin, Austin, Texas
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11
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Yang WJ, Zhao T, Zhou P, Chen S, Gao Y, Liang L, Wang X, Wang L. “Click” functionalization of dual stimuli-responsive polymer nanocapsules for drug delivery systems. Polym Chem 2017. [DOI: 10.1039/c7py00161d] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
“Clickable” and dual stimuli-responsive nanocapsules were developed for facile surface functionalizationviathiol–yne click chemistry and employed as drug nano-carriers.
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Affiliation(s)
- Wen Jing Yang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts &Telecommunications
- Nanjing 210023
- China
| | - Tingting Zhao
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts &Telecommunications
- Nanjing 210023
- China
| | - Peng Zhou
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts &Telecommunications
- Nanjing 210023
- China
| | - Simou Chen
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts &Telecommunications
- Nanjing 210023
- China
| | - Yu Gao
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts &Telecommunications
- Nanjing 210023
- China
| | - Lijun Liang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts &Telecommunications
- Nanjing 210023
- China
| | - Xiaodong Wang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts &Telecommunications
- Nanjing 210023
- China
| | - Lianhui Wang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts &Telecommunications
- Nanjing 210023
- China
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12
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Sun F, Lu G, Feng C, Li Y, Huang X. A PHEA-g-PEO well-defined graft copolymer exhibiting the synchronous encapsulation of both hydrophobic pyrene and hydrophilic Rhodamine 6G. Polym Chem 2017. [DOI: 10.1039/c6py01595f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This article reports the synthesis of a well-defined PHEA-g-PEO graft copolymer by the combination of RAFT polymerization, Cu(i)-mediated ATNRC, and the grafting-onto strategy, which could encapsulate hydrophilic R6G and hydrophobic pyrene simultaneously.
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Affiliation(s)
- Fangxu Sun
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
| | - Guolin Lu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
| | - Chun Feng
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
| | - Yongjun Li
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
| | - Xiaoyu Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- People's Republic of China
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13
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Culver HR, Steichen SD, Peppas NA. A Closer Look at the Impact of Molecular Imprinting on Adsorption Capacity and Selectivity for Protein Templates. Biomacromolecules 2016; 17:4045-4053. [PMID: 27936715 DOI: 10.1021/acs.biomac.6b01482] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Molecularly imprinted polymers (MIPs) are often investigated as lower cost, more environmentally robust alternatives to natural recognitive biomolecules, such as antibodies. When synthesized on the surface of nanomaterial supports, MIPs are capable of quick and effective binding of macromolecular templates when compared to traditional bulk-imprinted polymers. We have developed a method for imprinting proteins on biodegradable nanoparticle supports and have used these materials to investigate the impact of molecular imprinting on adsorption capacity and selectivity for lysozyme, the template protein. The imprinting process increased the adsorption capacity of the polymer for the template, lysozyme, with the MIPs being able to bind up to 83.5% of their dry weight as compared to 55.7% for nonimprinted polymers (NIPs). In noncompetitive binding experiments, where proteins were independently incubated with MIPs, the difference between adsorption capacity for lysozyme and proteins with much lower isoelectric points (pI < 8.0) was statistically significant. However, there was no statistical difference between adsorption capacity for lysozyme and other high-isoelectric point proteins, suggesting that MIPs are semiselective for this class of proteins. In competitive binding experiments, both MIPs and NIPs preferentially bound lysozyme over other high-isoelectric point proteins. This result demonstrated that imprinting alone could not account for the observed selectivity for lysozyme. Analysis of the solvent accessible surface area of lysozyme and its high-isoelectric point competitors revealed why lysozyme is an exceptional binder to the polymer system used in this work, with or without imprinting.
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Affiliation(s)
- Heidi R Culver
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, C0800, ‡Department of Biomedical Engineering, C0800, §McKetta Department of Chemical Engineering, C0400, ∥Department of Surgery and Perioperative Care, Dell Medical School, and ⊥College of Pharmacy, A1900, The University of Texas at Austin , Austin, Texas 78712, United States
| | - Stephanie D Steichen
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, C0800, ‡Department of Biomedical Engineering, C0800, §McKetta Department of Chemical Engineering, C0400, ∥Department of Surgery and Perioperative Care, Dell Medical School, and ⊥College of Pharmacy, A1900, The University of Texas at Austin , Austin, Texas 78712, United States
| | - Nicholas A Peppas
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, C0800, ‡Department of Biomedical Engineering, C0800, §McKetta Department of Chemical Engineering, C0400, ∥Department of Surgery and Perioperative Care, Dell Medical School, and ⊥College of Pharmacy, A1900, The University of Texas at Austin , Austin, Texas 78712, United States
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