1
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Lee J, Hernandez KC, Kim S, Herrera-Alonso M. Solute Stabilization Effects of Nanoparticles Containing Boronic Acids in the Absence of Binding Pairs. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15328-15337. [PMID: 37844211 DOI: 10.1021/acs.langmuir.3c02181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
Boronic acids are widely used in materials science because of their ability to reversibly bind with diol and catechol moieties through dynamic covalent interactions in a pH- and oxidative-dependent manner. Considerably fewer studies focus on property modulation of boronic acid-based materials in the absence of a biding pair. Herein, we discuss the effects of the boronic acid-containing polymer block length on solute release kinetics from nanoparticles in a stimuli-responsive manner for on-demand delivery. In this study, ABC-type linear amphiphiles of poly(d,l-lactide) and poly(2-methacryloyloxyethyl phosphorylcholine) containing a middle block functionalized with 3-aminophenylboronic acid were synthesized by a combination of ring-opening and controlled free radical polymerizations. Nile red-loaded nanoparticles were self-assembled using a multi-inlet vortex mixer in a well-controlled manner. Release was evaluated at pH above and below the pKa of the boronic acid and in the presence of hydrogen peroxide. Our results show that release kinetics from nanoparticles incorporating a boronic acid-functionalized interlayer were slower than those without it, and the rate could be modulated according to pH and oxidative conditions. These effects can be attributed to several factors, including the hydrophobicity of the boronic acid block as well as hydrogen bonding interactions existing between locally confined boronic acids. While boronic acids are generally utilized as boronic/boronate esters, their stabilizing effects in the absence of appropriate binding pairs are relevant and should be considered in the design of boronic acid-based technologies.
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Affiliation(s)
- Jeonghun Lee
- School of Advanced Materials Discovery, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Karla Cureño Hernandez
- School of Advanced Materials Discovery, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Sunghoon Kim
- School of Advanced Materials Discovery, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Margarita Herrera-Alonso
- Department of Chemical and Biological Engineering, Colorado State University, Fort Collins, Colorado 80523, United States
- School of Advanced Materials Discovery, Colorado State University, Fort Collins, Colorado 80523, United States
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2
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Dhiraj HS, Ishizuka F, Elshaer A, Zetterlund PB, Aldabbagh F. Lactate and glucose induced self‐assembly of hydrophobic boronic acid‐substituted polymers. JOURNAL OF POLYMER SCIENCE 2023. [DOI: 10.1002/pol.20220766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Harpal S. Dhiraj
- Department of Pharmacy, School of Life Sciences, Pharmacy and Chemistry Kingston University Kingston upon Thames UK
| | - Fumi Ishizuka
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering The University of New South Wales Sydney New South Wales Australia
| | - Amr Elshaer
- Department of Pharmacy, School of Life Sciences, Pharmacy and Chemistry Kingston University Kingston upon Thames UK
| | - Per B. Zetterlund
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering The University of New South Wales Sydney New South Wales Australia
| | - Fawaz Aldabbagh
- Department of Pharmacy, School of Life Sciences, Pharmacy and Chemistry Kingston University Kingston upon Thames UK
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3
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Dhiraj HS, Ishizuka F, Saeed M, Elshaer A, Zetterlund PB, Aldabbagh F. Lactate and glucose responsive boronic acid-substituted amphiphilic block copolymer nanoparticles of high aspect ratio. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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4
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Dhiraj HS, Ishizuka F, Elshaer A, Zetterlund PB, Aldabbagh F. RAFT dispersion polymerization induced self-assembly (PISA) of boronic acid-substituted acrylamides. Polym Chem 2022. [DOI: 10.1039/d2py00530a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
For the unprotected monomer, the boroxine core of nanoparticles allows transitions to higher order morphologies, while worms and vesicles are yielded directly from PISA of the pinacol ester-protected monomer.
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Affiliation(s)
- Harpal S. Dhiraj
- Department of Pharmacy, School of Life Sciences, Pharmacy and Chemistry, Kingston University, Penrhyn Road, Kingston upon Thames, KT1 2EE, UK
| | - Fumi Ishizuka
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Amr Elshaer
- Department of Pharmacy, School of Life Sciences, Pharmacy and Chemistry, Kingston University, Penrhyn Road, Kingston upon Thames, KT1 2EE, UK
| | - Per B. Zetterlund
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Fawaz Aldabbagh
- Department of Pharmacy, School of Life Sciences, Pharmacy and Chemistry, Kingston University, Penrhyn Road, Kingston upon Thames, KT1 2EE, UK
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5
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Wang M, He K, Li J, Shen T, Li Y, Xu Y, Yuan C, Dai L. Dual pH-responsive charge-reversal and photo-crosslinkable polymer nanoparticles for controlled drug release. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:849-868. [DOI: 10.1080/09205063.2020.1725279] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Meijie Wang
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
| | - Kaiwei He
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
- Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, China
| | - Jilu Li
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
| | - Tong Shen
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
| | - Yang Li
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
| | - Yiting Xu
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
- Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, China
| | - Conghui Yuan
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
- Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, China
| | - Lizong Dai
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
- Fujian Provincial Key Laboratory of Fire Retardant Materials, Xiamen University, Xiamen, China
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6
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Zhang Q, Wooley KL. Investigation of segmental reorganization within amphiphilic block polymer nanoparticles derived from shell crosslinked micelle templates: Shell crosslinked knedel‐like inversion. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20190089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qi Zhang
- Experimental work was conducted at Washington University in Saint Louis Department of Chemistry Saint Louis MO 63130 USA
- Present address: Microsoft Corporation One Microsoft Way Redmond WA 98052 USA
| | - Karen L. Wooley
- Department of Chemistry Texas A&M University College Station Texas 77842
- Department of Chemical Engineering Texas A&M University College Station Texas 77842
- Department of Materials Science & Engineering Texas A&M University College Station Texas 77842
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7
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Barbiturate derived amphiphilic homopolymers: synthesis, characterization, self-assembly and anticancer drug delivery. Ther Deliv 2019; 10:419-431. [PMID: 31359849 DOI: 10.4155/tde-2019-0031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Aim: Our aim was to synthesis and characterization of amphiphilic norbornene-derived thiobarbiturate homopolymers (NDTH 1-4) for drug delivery. Methods: Ring-opening metathesis polymerization technique was used to prepare a series of homopolymers. The hydrophobicity is introduced by increasing the number of carbon chains ([-CH2-]n; n = 1, 2, 3 & 4) in between norbornene backbone and thiobarbiturate species. Results: These vesicular aggregates have been used as anticancer Doxorubicin drug delivery vehicles at the acidic (5.5) and physiological (7.4) pHs. Confocal laser-scanning microscopy has demonstrated that the drug-loaded vesicles are easily internalized into living cells. Conclusion: Amphiphilic norbornene-derived thiobarbiturate homopolymer assemblies showed efficient nanocarrier for effective anticancer drug delivery.
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8
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Gaballa H, Theato P. Glucose-Responsive Polymeric Micelles via Boronic Acid–Diol Complexation for Insulin Delivery at Neutral pH. Biomacromolecules 2019; 20:871-881. [DOI: 10.1021/acs.biomac.8b01508] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Heba Gaballa
- Institute for Technical and Macromolecular Chemistry, University of Hamburg, Bundesstrasse 45, D-20146 Hamburg, Germany
| | - Patrick Theato
- Institute for Technical and Macromolecular Chemistry, University of Hamburg, Bundesstrasse 45, D-20146 Hamburg, Germany
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesser Strasse. 18, D-76131 Karlsruhe, Germany
- Soft Matter Synthesis Laboratory, Institute for Biological Interfaces III, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
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9
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Chen Y, Wang W, Wu D, Nagao M, Hall DG, Thundat T, Narain R. Injectable Self-Healing Zwitterionic Hydrogels Based on Dynamic Benzoxaborole–Sugar Interactions with Tunable Mechanical Properties. Biomacromolecules 2018; 19:596-605. [DOI: 10.1021/acs.biomac.7b01679] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yangjun Chen
- Department
of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 2G6, Canada
| | - Wenda Wang
- Department
of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 2G6, Canada
| | - Di Wu
- Department
of Chemistry, Centennial Centre for Interdisciplinary Science, University of Alberta, Edmonton, Alberta T6G 2G6, Canada
| | - Masanori Nagao
- Department
of Chemical Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Dennis G. Hall
- Department
of Chemistry, Centennial Centre for Interdisciplinary Science, University of Alberta, Edmonton, Alberta T6G 2G6, Canada
| | - Thomas Thundat
- Department
of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 2G6, Canada
| | - Ravin Narain
- Department
of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 2G6, Canada
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10
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Gaballa H, Lin S, Shang J, Meier S, Theato P. A synthetic approach toward a pH and sugar-responsive diblock copolymer via post-polymerization modification. Polym Chem 2018. [DOI: 10.1039/c8py00660a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel pH- and sugar-responsive diblock copolymer containing phenylboronic acid was synthesized by RAFT and a post-polymerization modification strategy.
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Affiliation(s)
- Heba Gaballa
- Institute for Technical and Macromolecular Chemistry
- University of Hamburg
- D-20146 Hamburg
- Germany
| | - Shaojian Lin
- Institute for Technical and Macromolecular Chemistry
- University of Hamburg
- D-20146 Hamburg
- Germany
| | - Jiaojiao Shang
- Institute for Technical and Macromolecular Chemistry
- University of Hamburg
- D-20146 Hamburg
- Germany
| | - Sabrina Meier
- Institute for Technical and Macromolecular Chemistry
- University of Hamburg
- D-20146 Hamburg
- Germany
| | - Patrick Theato
- Institute for Technical and Macromolecular Chemistry
- University of Hamburg
- D-20146 Hamburg
- Germany
- Institute for Chemical Technology and Polymer Chemistry
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11
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“Schizophrenic” self-assembly of dual thermoresponsive block copolymers bearing a zwitterionic and a non-ionic hydrophilic block. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.06.063] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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12
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Bentz KC, Ejaz M, Arencibia S, Sultan N, Grayson SM, Savin DA. Hollow amphiphilic crosslinked nanocapsules from sacrificial silica nanoparticle templates and their application as dispersants for oil spill remediation. Polym Chem 2017. [DOI: 10.1039/c7py00342k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hollow nanocapsules were constructed using a sacrificial silica scaffold to produce novel oil remediation agents.
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Affiliation(s)
- Kyle C. Bentz
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | | | - Scarlett Arencibia
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Naomi Sultan
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | | | - Daniel A. Savin
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
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13
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Abstract
This review summarizes pH-responsive monomers, polymers and their derivative nano- and micro-structures including micelles, cross-linked micelles, microgels and hydrogels.
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Affiliation(s)
- G. Kocak
- Department of Chemistry
- Faculty of Arts and Science
- Eskisehir Osmangazi University
- Eskisehir
- Turkey
| | - C. Tuncer
- Department of Chemistry
- Faculty of Arts and Science
- Eskisehir Osmangazi University
- Eskisehir
- Turkey
| | - V. Bütün
- Department of Chemistry
- Faculty of Arts and Science
- Eskisehir Osmangazi University
- Eskisehir
- Turkey
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14
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Zhang J, Xiao Y, Luo X, Wen L, Heise A, Lang M. Schizophrenic poly(ε-caprolactone)s: synthesis, self-assembly and fluorescent decoration. Polym Chem 2017. [DOI: 10.1039/c7py00461c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Double hydrophilic copolymers PCCL-b-PPIL and their pyrene-modified copolymers showed pH-responsive “schizophrenic” aggregation behaviors.
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Affiliation(s)
- Jun Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Yan Xiao
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Xueli Luo
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Lianlei Wen
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Andreas Heise
- Department of Pharmaceutical & Medicinal Chemistry
- Royal College of Surgeons in Ireland
- Dublin 2
- Ireland
| | - Meidong Lang
- Shanghai Key Laboratory of Advanced Polymeric Materials
- Key Laboratory for Ultrafine Materials of Ministry of Education
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai 200237
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15
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Besenius P. Controlling supramolecular polymerization through multicomponent self-assembly. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28385] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Pol Besenius
- Institute of Organic Chemistry, Johannes Gutenberg-Universität Mainz; Duesbergweg 10-14 Mainz 55128 Germany
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16
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SANS study on self-assembled structures of glucose-responsive phenylboronate ester-containing diblock copolymer. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.08.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Sprouse D, Jiang Y, Laaser JE, Lodge TP, Reineke TM. Tuning Cationic Block Copolymer Micelle Size by pH and Ionic Strength. Biomacromolecules 2016; 17:2849-59. [DOI: 10.1021/acs.biomac.6b00654] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dustin Sprouse
- Department of Chemistry, and ‡Department of Chemical Engineering & Materials Science, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Yaming Jiang
- Department of Chemistry, and ‡Department of Chemical Engineering & Materials Science, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Jennifer E. Laaser
- Department of Chemistry, and ‡Department of Chemical Engineering & Materials Science, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Timothy P. Lodge
- Department of Chemistry, and ‡Department of Chemical Engineering & Materials Science, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Theresa M. Reineke
- Department of Chemistry, and ‡Department of Chemical Engineering & Materials Science, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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18
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Gilmore KA, Lampley MW, Boyer C, Harth E. Matrices for combined delivery of proteins and synthetic molecules. Adv Drug Deliv Rev 2016; 98:77-85. [PMID: 26656604 DOI: 10.1016/j.addr.2015.11.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 11/23/2015] [Accepted: 11/25/2015] [Indexed: 02/07/2023]
Abstract
With the increasing advancement of synergistic, multimodal approaches to influence the treatment of infectious and non-infectious diseases, we witness the development of enabling techniques merging necessary complexity with leaner designs and effectiveness. Systems- and polypharmacology ask for multi-potent drug combinations with many targets to engage with the biological system. These demand drug delivery designs for one single drug, dual drug release systems and multiple release matrices in which the macromolecular structure allows for higher solubilization, protection and sequential or combined release profiles. As a result, nano- and micromaterials have been evolved from mono- to dual drug carriers but are also an essential part to establish multimodality in polymeric matrices. Surface dynamics of particles creating interfaces between polymer chains and hydrogels inspired the development not only of biomedical adhesives but also of injectable hydrogels in which the nanoscale material is both, adhesive and delivery tool. These complex delivery systems are segmented into two delivery subunits, a polymer matrix and nanocarrier, to allow for an even higher tolerance of the incorporated drugs without adding further synthetic demands to the nanocarrier alone. The opportunities in these quite novel approaches for the delivery of small and biological therapeutics are remarkable and selected examples for applications in cancer and bone treatments are discussed.
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Affiliation(s)
- Kelly A Gilmore
- Department of Chemistry, Vanderbilt University, 7665 Stevenson Center, Nashville, TN 37235, USA
| | - Michael W Lampley
- Department of Chemistry, Vanderbilt University, 7665 Stevenson Center, Nashville, TN 37235, USA
| | - Cyrille Boyer
- Australian Centre for Nanomedicine (ACN), School of Chemical Sciences and Engineering, University of NSW, Australia.
| | - Eva Harth
- Department of Chemistry, Vanderbilt University, 7665 Stevenson Center, Nashville, TN 37235, USA.
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19
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Frisch H, Besenius P. pH-switchable self-assembled materials. Macromol Rapid Commun 2014; 36:346-63. [PMID: 25534871 DOI: 10.1002/marc.201400623] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 11/20/2014] [Indexed: 01/21/2023]
Abstract
Self-assembled materials, which are able to respond to external stimuli, have been extensively studied over the last decades. A particularly exciting stimulus for a wide range of biomedical applications is the pH value of aqueous solutions, since deprotonation-protonation events are crucial for structural and functional properties of biopolymers. In living cells and tissues, intra- and extracellular pH values are stringently regulated, but can deviate from pH neutral as observed for example in tumorous, inflammatory sites, in endocytic pathways, and specific cellular compartments. By using a pH-switch as a stimulus, it is thereby possible to address specific targets in order to cause a programmed response of the supramolecular material. This strategy has not only been successfully applied in fundamental research but also in clinical studies. In this feature article, current strategies that have been used in order to design materials with pH-responsive properties are illustrated. This discussion only addresses selected examples from the last four years, the self-assembly of polymer-based building blocks, assemblies emerging from small molecules including surfactants or derived from biological macromolecules, and finally the controlled self-assembly of oligopeptides.
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Affiliation(s)
- Hendrik Frisch
- Organic Chemistry Institute and CeNTech, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, D-48149, Münster, Germany
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20
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Samarajeewa S, Zentay RP, Jhurry ND, Li A, Seetho K, Zou J, Wooley KL. Programmed hydrolysis of nanoassemblies by electrostatic interaction-mediated enzymatic-degradation. Chem Commun (Camb) 2014; 50:968-70. [PMID: 24301076 PMCID: PMC4165354 DOI: 10.1039/c3cc46013d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Electrostatic interaction-mediated enzymatic-hydrolysis of poly(lactide)-containing nanoscale assemblies is described. At physiological pH, degradable core-shell morphologies with charged shells can readily attract or repel enzymes carrying opposite or similar charges, respectively.
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Affiliation(s)
- Sandani Samarajeewa
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P. O. Box 30012, College Station, Texas 77842, USA.
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21
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Sun R, Luo Q, Gao C, Wang Y, Gao L, Du H, Huang Y, Li X, Shen Z, Zhu W. Facile fabrication of reduction-responsive nanocarriers for controlled drug release. Polym Chem 2014. [DOI: 10.1039/c4py00577e] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
An amphiphilic multiblock poly(ether–ester) containing multiple thiols was facilely synthesized by “one-pot” polycondensation, and was used to prepare reduction-responsive core-crosslinked micelles for controlled drug release.
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Affiliation(s)
- Rui Sun
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, People's Republic of China
| | - Qiaojie Luo
- Department of Oral and Maxillofacial Surgery
- Affiliated Stomatology Hospital
- College of Medicine
- Zhejiang University
- Hangzhou 310006, P. R. China
| | - Chen Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, People's Republic of China
| | - Ying Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, People's Republic of China
| | - Lilong Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, People's Republic of China
| | - Hong Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, People's Republic of China
| | - Ying Huang
- Department of Oral and Maxillofacial Surgery
- Affiliated Stomatology Hospital
- College of Medicine
- Zhejiang University
- Hangzhou 310006, P. R. China
| | - Xiaodong Li
- Department of Oral and Maxillofacial Surgery
- Affiliated Stomatology Hospital
- College of Medicine
- Zhejiang University
- Hangzhou 310006, P. R. China
| | - Zhiquan Shen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, People's Republic of China
| | - Weipu Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, People's Republic of China
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22
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Lin M, Chen G, Jiang M. Direct and indirect core–shell inversion of block copolymer micelles. Polym Chem 2014. [DOI: 10.1039/c3py00944k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel block copolymer PNIPAm-b-PBOB is reported where denaturation of PNIPAm and PBOB is switched by independent, controllable stimuli. Core–shell inversion may be realized via different pathways, indirect and direct, by adjusting the program of imposing the stimuli.
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Affiliation(s)
- Mingchang Lin
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai
- China
| | - Guosong Chen
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai
- China
| | - Ming Jiang
- State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai
- China
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Liu J, Detrembleur C, Debuigne A, De Pauw-Gillet MC, Mornet S, Vander Elst L, Laurent S, Duguet E, Jérôme C. Glucose-, pH- and thermo-responsive nanogels crosslinked by functional superparamagnetic maghemite nanoparticles as innovative drug delivery systems. J Mater Chem B 2014; 2:1009-1023. [DOI: 10.1039/c3tb21272f] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Fan J, Zou J, He X, Zhang F, Zhang S, Raymond JE, Wooley KL. Tunable mechano-responsive organogels by ring-opening copolymerizations of N-carboxyanhydrides. Chem Sci 2014; 5:10.1039/C3SC52504J. [PMID: 24363890 PMCID: PMC3865608 DOI: 10.1039/c3sc52504j] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The simple copolymerization of N-carboxyanhydride (NCA) monomers is utilized to generate copolypeptides having a combination of α-helix and β-sheet sub-structures that, when grown from a solvophilic synthetic polymer block segment, are capable of driving mechano-responsive supramolecular sol-to-gel-to-sol and sol-to-gel-to-gel transitions reversibly, which allow also for injection-based processing and self-healing behaviors. A new type of polypeptide-based organogelator, methoxy poly(ethylene glycol)-block-poly(γ-benzyl-l-glutamate-co-glycine) (mPEG-b-P(BLG-co-Gly)), is facilely synthesized by statistical ring-opening copolymerizations (ROPs) of γ-benzyl-l-glutamate (BLG) and glycine (Gly) NCAs initiated by mPEG-amine. These systems exhibit tunable secondary structures and result in sonication stimulus responsiveness of the organogels with the polypeptide segment variation, controlled by varying the ratio of BLG NCA to Gly NCA during the copolymerizations. Attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) studies indicate the α-helical component decreases while the β-sheet content increases systematically with a higher mole fraction of Gly in the polypeptide segment. The supramolecular assembly of β-sheet nanofibrils, having a tunable width over the range of 10.4 - 14.5 nm with varied BLG to Gly ratio, are characterized by transmission electron microscopy (TEM). The further self-assembly of these nanostructures into 3-D gel networks within N,N-dimethylformamide (DMF) occurs at low critical gelation concentrations (CGC) (lowest ca. 0.6 wt %). Increased BLG to Gly ratios lead to an increase of the α-helical component in the secondary structures of the polypeptide segments, resulting in wider and more flexible nanofibrils. The presence of α-helical component in the polymers enhances the stability of the organogels against sonication, and instantaneous gel-to-gel transitions are observed as in situ reconstruction of networks occurs within the gelled materials after sonication. In marked contrast, the β-sheet-rich gel, prepared from mPEG-b-PGly, exhibits an instant gel-to-sol transition after sonication is applied. The CGC concentration and stiffness of this mPEG-b-P(BLG-co-Gly) organogel system can be tuned by simply varying the percentages of α-helix and β-sheet in the secondary structures through control of the BLG to Gly ratio during synthesis. The mechanical properties of these organogels are studied by dynamic mechanical analyses (DMA), having storage moduli of ca. 12.1 kPa at room temperature. The injectability and self-healing capabilities are demonstrated by direct observation of the macroscopic self-healing behavior experiment.
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Affiliation(s)
- Jingwei Fan
- Departments of Chemistry and Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX, 77842, USA
| | - Jiong Zou
- Departments of Chemistry and Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX, 77842, USA
| | - Xun He
- Departments of Chemistry and Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX, 77842, USA
| | - Fuwu Zhang
- Departments of Chemistry and Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX, 77842, USA
| | - Shiyi Zhang
- Departments of Chemistry and Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX, 77842, USA
| | - Jeffery E. Raymond
- Departments of Chemistry and Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX, 77842, USA
| | - Karen L. Wooley
- Departments of Chemistry and Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, TX, 77842, USA
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Elsabahy M, Zhang S, Zhang F, Deng ZJ, Lim YH, Wang H, Parsamian P, Hammond PT, Wooley KL. Surface charges and shell crosslinks each play significant roles in mediating degradation, biofouling, cytotoxicity and immunotoxicity for polyphosphoester-based nanoparticles. Sci Rep 2013; 3:3313. [PMID: 24264796 PMCID: PMC3837308 DOI: 10.1038/srep03313] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 11/06/2013] [Indexed: 01/12/2023] Open
Abstract
The construction of nanostructures from biodegradable precursors and shell/core crosslinking have been pursued as strategies to solve the problems of toxicity and limited stability, respectively. Polyphosphoester (PPE)-based micelles and crosslinked nanoparticles with non-ionic, anionic, cationic, and zwitterionic surface characteristics for potential packaging and delivery of therapeutic and diagnostic agents, were constructed using a quick and efficient synthetic strategy, and importantly, demonstrated remarkable differences in terms of cytotoxicity, immunotoxicity, and biofouling properties, as a function of their surface characteristics and also with dependence on crosslinking throughout the shell layers. For instance, crosslinking of zwitterionic micelles significantly reduced the immunotoxicity, as evidenced from the absence of secretions of any of the 23 measured cytokines from RAW 264.7 mouse macrophages treated with the nanoparticles. The micelles and their crosslinked analogs demonstrated lower cytotoxicity than several commercially-available vehicles, and their degradation products were not cytotoxic to cells at the range of the tested concentrations. PPE-nanoparticles are expected to have broad implications in clinical nanomedicine as alternative vehicles to those involved in several of the currently available medications.
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Affiliation(s)
- Mahmoud Elsabahy
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut Clinical Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, Assiut, Egypt
- These authors contributed equally to this work
| | - Shiyi Zhang
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
- David H. Koch Institute for Integrative, Cancer Research, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
- These authors contributed equally to this work
| | - Fuwu Zhang
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Zhou J. Deng
- David H. Koch Institute for Integrative, Cancer Research, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Young H. Lim
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Hai Wang
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Perouza Parsamian
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Paula T. Hammond
- David H. Koch Institute for Integrative, Cancer Research, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Karen L. Wooley
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
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Elsabahy M, Samarajeewa S, Raymond JE, Clark C, Wooley KL. Shell-crosslinked knedel-like nanoparticles induce lower immunotoxicity than their non-crosslinked analogs. J Mater Chem B 2013; 1:10.1039/C3TB20668H. [PMID: 24187610 PMCID: PMC3811931 DOI: 10.1039/c3tb20668h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
Abstract
The development of stable nanoparticles that can withstand the changing conditions experienced in a biological setting and also be of low toxicity and immunogenicity is of particular importance to address the problems associated with currently utilized nanotechnology-based therapeutics and diagnostics. The use of crosslinked nanoparticles continues to receive special impetus, due to their robust structure and high kinetic stability, and they have recently been shown to induce lower cytotoxicity than their non-crosslinked micellar counterparts. In the current study, poly(acrylamidoethylamine)-block-poly(DL-lactide) (PAEA90-b-PDLLA40) copolymers were synthesized, self-assembled in water to yield nanoscopic polymeric micelles, and the effects of decorating the micellar surface with poly(ethylene glycol) (i.e. PEGylation) and crosslinking the PAEA layer to varying extents on the physicochemical characteristics, cytotoxicity and immunotoxicity of the nanoparticles were studied. Herein, we report for the first time that crosslinking can efficiently reduce the immunotoxicity of polymeric nanomaterials. In addition, increasing the degree of crosslinking further reduced the accessibility of biomolecules to the core of the nanoparticles and decreased their cytotoxicity and immunotoxicity. It is also highlighted that crosslinking can be more efficient than PEGylation in reducing the immunotoxicity of nanomaterials. Shell-crosslinking of block copolymer micelles, therefore, is expected to advance their clinical development beyond the earlier known effects, and to broaden the implications in the field of nanomedicine.
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Affiliation(s)
- Mahmoud Elsabahy
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut Clinical Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, Assiut, Egypt
| | - Sandani Samarajeewa
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Jeffery E. Raymond
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Corrie Clark
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Karen L. Wooley
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
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Samarajeewa S, Ibricevic A, Gunsten SP, Shrestha R, Elsabahy M, Brody SL, Wooley KL. Degradable cationic shell cross-linked knedel-like nanoparticles: synthesis, degradation, nucleic acid binding, and in vitro evaluation. Biomacromolecules 2013; 14:1018-27. [PMID: 23510389 PMCID: PMC3640429 DOI: 10.1021/bm3018774] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In this work, degradable cationic shell cross-linked knedel-like (deg-cSCK) nanoparticles were developed as an alternative platform to replace similar nondegradable cSCK nanoparticles that have been utilized for nucleic acids delivery. An amphiphilic diblock copolymer poly(acrylamidoethylamine)(90)-block-poly(DL-lactide)(40) (PAEA(90)-b-PDLLA(40)) was synthesized, self-assembled in aqueous solution, and shell cross-linked using a hydrolyzable cross-linker to afford deg-cSCKs with an average core diameter of 45 ± 7 nm. These nanoparticles were fluorescently labeled for in vitro tracking. The enzymatic- and hydrolytic-degradability, siRNA binding affinity, cell uptake and cytotoxicity of the deg-cSCKs were evaluated. Esterase-catalyzed hydrolysis of the nanoparticles resulted in the degradation of ca. 24% of the PDLLA core into lactic acid within 5 d, as opposed to only ca. 9% degradation from aqueous solutions of the deg-cSCK nanoparticles in the absence of enzyme. Cellular uptake of deg-cSCKs was efficient, while exhibiting low cytotoxicity with LD50 values of ca. 90 and 30 μg/mL in RAW 264.7 mouse macrophages and MLE 12 cell lines, respectively, ca. 5- to 6-fold lower than the cytotoxicity observed for nondegradable cSCK analogs. Additionally, deg-cSCKs were able to complex siRNA at an N/P ratio as low as 2, and were efficiently able to facilitate cellular uptake of the complexed nucleic acids.
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Affiliation(s)
- Sandani Samarajeewa
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P. O. Box 30012, College Station, Texas, 77842, United States
| | - Aida Ibricevic
- Department of Internal Medicine, Washington University School of Medicine, 660 S. Euclid Ave, Saint Louis, Missouri, 63110, United States
| | - Sean P. Gunsten
- Department of Internal Medicine, Washington University School of Medicine, 660 S. Euclid Ave, Saint Louis, Missouri, 63110, United States
| | - Ritu Shrestha
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P. O. Box 30012, College Station, Texas, 77842, United States
| | - Mahmoud Elsabahy
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P. O. Box 30012, College Station, Texas, 77842, United States
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Steven L. Brody
- Department of Internal Medicine, Washington University School of Medicine, 660 S. Euclid Ave, Saint Louis, Missouri, 63110, United States
| | - Karen L. Wooley
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P. O. Box 30012, College Station, Texas, 77842, United States
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Yu H, Xu Z, Wang D, Chen X, Zhang Z, Yin Q, Li Y. Intracellular pH-activated PEG-b-PDPA wormlike micelles for hydrophobic drug delivery. Polym Chem 2013. [DOI: 10.1039/c3py00849e] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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