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Lee S, Walker PJ, Velling SJ, Chen A, Taylor ZW, Fiori CJBM, Gandhi V, Wang ZG, Greer JR. Molecular control via dynamic bonding enables material responsiveness in additively manufactured metallo-polyelectrolytes. Nat Commun 2024; 15:6850. [PMID: 39127713 DOI: 10.1038/s41467-024-50860-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 07/23/2024] [Indexed: 08/12/2024] Open
Abstract
Metallo-polyelectrolytes are versatile materials for applications like filtration, biomedical devices, and sensors, due to their metal-organic synergy. Their dynamic and reversible electrostatic interactions offer high ionic conductivity, self-healing, and tunable mechanical properties. However, the knowledge gap between molecular-level dynamic bonds and continuum-level material properties persists, largely due to limited fabrication methods and a lack of theoretical design frameworks. To address this critical gap, we present a framework, combining theoretical and experimental insights, highlighting the interplay of molecular parameters in governing material properties. Using stereolithography-based additive manufacturing, we produce durable metallo-polyelectrolytes gels with tunable mechanical properties based on metal ion valency and polymer charge sparsity. Our approach unveils mechanistic insights into how these interactions propagate to macroscale properties, where higher valency ions yield stiffer, tougher materials, and lower charge sparsity alters material phase behavior. This work enhances understanding of metallo-polyelectrolytes behavior, providing a foundation for designing advanced functional materials.
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Affiliation(s)
- Seola Lee
- Division of Engineering and Applied Science, California Institute of Technology, 1200 California Boulevard, Pasadena, 91125, CA, USA.
| | - Pierre J Walker
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 California Boulevard, Pasadena, 91125, CA, USA
| | - Seneca J Velling
- Division of Engineering and Applied Science, California Institute of Technology, 1200 California Boulevard, Pasadena, 91125, CA, USA
| | - Amylynn Chen
- Division of Engineering and Applied Science, California Institute of Technology, 1200 California Boulevard, Pasadena, 91125, CA, USA
| | - Zane W Taylor
- Division of Engineering and Applied Science, California Institute of Technology, 1200 California Boulevard, Pasadena, 91125, CA, USA
| | - Cyrus J B M Fiori
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 California Boulevard, Pasadena, 91125, CA, USA
| | - Vatsa Gandhi
- Division of Engineering and Applied Science, California Institute of Technology, 1200 California Boulevard, Pasadena, 91125, CA, USA
- Kavli Nanoscience Institute, California Institute of Technology, 1200 California Boulevard, Pasadena, 91125, CA, USA
| | - Zhen-Gang Wang
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 California Boulevard, Pasadena, 91125, CA, USA
| | - Julia R Greer
- Division of Engineering and Applied Science, California Institute of Technology, 1200 California Boulevard, Pasadena, 91125, CA, USA
- Kavli Nanoscience Institute, California Institute of Technology, 1200 California Boulevard, Pasadena, 91125, CA, USA
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2
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Wu X, Teng F, Firlar E, Zhang T, Libera M. Elasto-plastic effects on shape-shifting electron-beam-patterned gel-based micro-helices. MATERIALS HORIZONS 2024; 11:3427-3436. [PMID: 38712865 DOI: 10.1039/d4mh00208c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Shape-shifting helical gels have been created by various routes, notably by photolithography. We explore electron-beam lithography as an alternative to prescribe microhelix formation in tethered patterns of pure poly(acrylic acid). Simulations indicate the nanoscale spatial distribution of deposited energy that drives the loss of acid groups and crosslinking. Upon exposure to buffer, a patterned line converts to a 3D helix whose cross section comprises a crosslinked and hydrophobic core surrounded by a high-swelling pH-responsive corona. Through-thickness asymmetries generate out-of-plane bending to drive helix formation. The relative core and corona fractions are determined by the electron dose which in turn controls the helical radius and pitch. Increasing pH substantially raises the swelling stress and the rod elongates plastically. The pitch concurrently changes from minimal to non-minimal. The in-plane asymmetry driving this change can be attributed to shear-band formation in the hydrophobic core. Subsequent pH cycling drives elastic cycling of the helical properties. These findings illustrate the effects of elastoplastic deformation on helical properties and elaborate unique attributes of electron lithography as an alternate means to create shape-shifting structures.
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Affiliation(s)
- Xinpei Wu
- Department of Chemical Engineering & Materials Science, Stevens Institute of Technology, Hoboken, NJ, USA.
| | - Feiyue Teng
- Department of Chemical Engineering & Materials Science, Stevens Institute of Technology, Hoboken, NJ, USA.
- presently with the Brookhaven National Laboratory, Upton, NY, USA
| | - Emre Firlar
- Rutgers CryoEM & Nanoimaging Facility and Institute for Quantitative Biomedicine, Rutgers University, Piscataway, NJ, USA
- presently with Bristol Myers Squibb, Molecular Structure & Design, Princeton, NJ, USA
| | - Teng Zhang
- Department of Mechanical and Aerospace Engineering, Syracuse University, Syracuse, NY, USA
| | - Matthew Libera
- Department of Chemical Engineering & Materials Science, Stevens Institute of Technology, Hoboken, NJ, USA.
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3
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Karmakar M, Sadaf S, Ghoroi C. pH-Responsive Biocompatible Fluorescent Hydrogel for Selective Sensing and Adsorptive Recovery of Dysprosium. ACS OMEGA 2024; 9:29620-29632. [PMID: 39005826 PMCID: PMC11238204 DOI: 10.1021/acsomega.4c02772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 06/07/2024] [Accepted: 06/12/2024] [Indexed: 07/16/2024]
Abstract
The elevated accumulation of electronic wastes, especially containing Dysprosium ion [i.e., Dy(III)], is emerging as a potential environmental threat. To overcome the deleterious effects of Dy(III), detection and removal of Dy(III) is crucial. Moreover, recovery of high-value Dy(III) is economically beneficial. However, the availability of a single material, capable of sensing Dy(III) in nanomolar concentration and simultaneously adsorbing it with high adsorption capacity (AC), is rare. Therefore, to solve this problem, a pH-responsive fluorescent amino graphene oxide-impregnated-engineered polymer hydrogel (AGO-EPH) has been synthesized, suitable for selective sensing of Dy(III) in nanomolar concentration and adsorbing it from wastewater at ambient temperature. This terpolymeric hydrogel is synthesized from two nonfluorescent monomers, propenoic acid (PNA) and prop-2-enamide (PEAM), along with an in situ generated comonomer (3-acrylamidopropanoic acid/AAPPA) through N-H activation during polymerization. Surface properties and structural details of AGO-EPH are established using NMR, FTIR, XRD, TEM, SEM, EDX, Raman, MALDI-mass, and DLS studies. The AGO-EPH exhibits blue fluorescence with selective turn-off sensing of Dy(III) with the detection limit of 1.88 × 10-7 (M). The maximum AC of AGO-EPH is 41.97 ± 0.39 mg g-1. The developed AGO-EPH shows consistent adsorption-desorption property over five cycles, with more than 90% desorption efficiency per cycle, confirming significant recovery of the valuable Dy(III). From Logic gate calculations, complexation of Dy(III) and AGO-EPH may be the reason behind fluorescence quenching. The AGO-EPH also shows antibacterial action against ∼3 × 108 cells mL-1 of E. coli solution. Overall, the developed pH-responsive engineered hydrogel can be used as a potential low-cost sensing device and reusable adsorbent for Dy(III).
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Affiliation(s)
- Mrinmoy Karmakar
- DryProTech Lab, Department of Chemical Engineering, Indian Institute of Technology-Gandhinagar, Palaj, Gandhinagar, Gujarat-382055, India
| | - Somya Sadaf
- DryProTech Lab, Department of Chemical Engineering, Indian Institute of Technology-Gandhinagar, Palaj, Gandhinagar, Gujarat-382055, India
| | - Chinmay Ghoroi
- DryProTech Lab, Department of Chemical Engineering, Indian Institute of Technology-Gandhinagar, Palaj, Gandhinagar, Gujarat-382055, India
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4
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Jin Z, Seong HG, Srivastava S, McGlasson A, Emrick T, Muthukumar M, Russell TP. 3D Printing of Aqueous Two-Phase Systems with Linear and Bottlebrush Polyelectrolytes. Angew Chem Int Ed Engl 2024; 63:e202404382. [PMID: 38616164 DOI: 10.1002/anie.202404382] [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: 03/03/2024] [Revised: 04/08/2024] [Accepted: 04/12/2024] [Indexed: 04/16/2024]
Abstract
We formed core-shell-like polyelectrolyte complexes (PECs) from an anionic bottlebrush polymer with poly (acrylic acid) side chains with a cationic linear poly (allylamine hydrochloride). By varying the pH, the number of side chains of the polyanionic BB polymers (Nbb), the charge density of the polyelectrolytes, and the salt concentration, the phase separation behavior and salt resistance of the complexes could be tuned by the conformation of the BBs. By combining the linear/bottlebrush polyelectrolyte complexation with all-liquid 3D printing, flow-through tubular constructs were produced that showed selective transport across the PEC membrane comprising the walls of the tubules. These tubular constructs afford a new platform for flow-through delivery systems.
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Affiliation(s)
- Zichen Jin
- Department of Polymer Science and Engineering Department, University of Massachusetts, 120 Governors Drive, Amherst, MA 01003, USA
| | - Hong-Gyu Seong
- Department of Polymer Science and Engineering Department, University of Massachusetts, 120 Governors Drive, Amherst, MA 01003, USA
| | - Satyam Srivastava
- Department of Polymer Science and Engineering Department, University of Massachusetts, 120 Governors Drive, Amherst, MA 01003, USA
| | - Alex McGlasson
- Department of Polymer Science and Engineering Department, University of Massachusetts, 120 Governors Drive, Amherst, MA 01003, USA
| | - Todd Emrick
- Department of Polymer Science and Engineering Department, University of Massachusetts, 120 Governors Drive, Amherst, MA 01003, USA
| | - Murugappan Muthukumar
- Department of Polymer Science and Engineering Department, University of Massachusetts, 120 Governors Drive, Amherst, MA 01003, USA
| | - Thomas P Russell
- Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA
- Department of Polymer Science and Engineering Department, University of Massachusetts, 120 Governors Drive, Amherst, MA 01003, USA
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5
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Lee WS, Enomoto T, Akimoto AM, Yoshida R. Emergent Synchronous Volumetric Oscillation in Hierarchically Structured Self-Oscillating Gel Clusters. J Phys Chem B 2024; 128:5268-5279. [PMID: 38759232 DOI: 10.1021/acs.jpcb.4c01821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2024]
Abstract
Emergent properties accompanying synchronization among oscillators are vital characteristics in biological systems. Belousov-Zhabotinsky (BZ) oscillators are an artificial model to study the emergence and synchronization in life. This research represents a self-oscillating gel system with clusterable properties to experimentally examine synchronous and emergent properties at a fundamental hierarchical level. Incorporating acrylic acid (AAc) moieties within the gel network facilitates cluster formation through hydrogen bonding in an acidic BZ substrate solution. Upon clustering, both homogeneous and heterogeneous gel assemblies─ranging from double to quadruple clusters─exhibit increased and synchronized periods and amplitudes during the BZ reaction. Notably, in heterogeneous clusters, gel units with initially short periods and small volumetric amplitudes display a significant increase, aligning with the lonfger periods and larger amplitudes of other elements within the cluster, an emergent property. This research can pave the way for a better understanding of synchronous and emergent properties in biological oscillators such as cardiomyocytes.
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Affiliation(s)
- Won Seok Lee
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Takafumi Enomoto
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Aya Mizutani Akimoto
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Ryo Yoshida
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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6
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Wang Y, Wei Z, Ji T, Bai R, Zhu H. Highly Ionic Conductive, Stretchable, and Tough Ionogel for Flexible Solid-State Supercapacitor. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307019. [PMID: 38111366 DOI: 10.1002/smll.202307019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/17/2023] [Indexed: 12/20/2023]
Abstract
The increasing demand for wearable electronics calls for advanced energy storage solutions that integrate high electrochemical performances and mechanical robustness. Ionogel is a promising candidate due to its stretchability combined with high ionic conductivity. However, simultaneously optimizing both the electrochemical and mechanical performance of ionogels remains a challenge. This paper reports a tough and highly ion-conductive ionogel through ion impregnation and solvent exchange. The fabricated ionogel consists of double interpenetrating networks of long polymer chains that provide high stretchability. The polymer chains are crosslinked by hydrogen bonds that induce large energy dissipation for enhanced toughness. The resultant ionogel possesses mechanical stretchability of 26, tensile strength of 1.34 MPa, and fracture toughness of 4175 J m-2. Meanwhile, due to the high ion concentrations and ion mobility in the gel, a high ionic conductivity of 3.18 S m-1 at room temperature is achieved. A supercapacitor of this ionogel sandwiched with porous fiber electrodes provides remarkable areal capacitance (615 mF cm-2 at 1 mA cm-2), energy density (341.7 µWh cm-2 at 1 mA cm-2), and power density (20 mW cm-2 at 10 mA cm-2), offering significant advantages in applications where high efficiency, compact size, and rapid energy delivery are crucial, such as flexible and wearable electronics.
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Affiliation(s)
- Ying Wang
- Department of Mechanical and Industrial Engineering, Northeastern University, Boston, MA, 02115, USA
| | - Zhengxuan Wei
- Department of Mechanical and Industrial Engineering, Northeastern University, Boston, MA, 02115, USA
| | - Tongtai Ji
- Department of Mechanical and Industrial Engineering, Northeastern University, Boston, MA, 02115, USA
| | - Ruobing Bai
- Department of Mechanical and Industrial Engineering, Northeastern University, Boston, MA, 02115, USA
| | - Hongli Zhu
- Department of Mechanical and Industrial Engineering, Northeastern University, Boston, MA, 02115, USA
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7
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Herman H, Rata DM, Cadinoiu AN, Atanase LI, Hermenean A. Colloidal and Biological Characterization of Dual Drug-Loaded Smart Micellar Systems. Polymers (Basel) 2024; 16:1189. [PMID: 38732658 PMCID: PMC11085147 DOI: 10.3390/polym16091189] [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: 03/29/2024] [Revised: 04/20/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024] Open
Abstract
Smart polymeric micelles (PMs) are of great interest in drug delivery owing to their low critical micellar concentration and sizes. In the present study, two different pH-sensitive poly(2-vinyl pyridine)-b-poly(ethylene oxide) (P2VP-b-PEO) copolymer samples were used for the encapsulation of paclitaxel (PTX), ursolic acid (UA), and dual loading of PTX and UA. Based on the molecular features of copolymers, spherical PMs with sizes of around 35 nm and 140 nm were obtained by dialysis for P2VP55-b-PEO284 and P2VP274-b-PEO1406 samples, respectively. The micellar sizes increased after loading of both drugs. Moreover, drug encapsulation and loading efficiencies varied from 53 to 94% and from 3.2 to 18.7% as a function of the copolymer/drug ratio, molar mass of copolymer sample, and drug type. By FT-IR spectroscopy, it was possible to demonstrate the drug loading and the presence of some interactions between the polymer matrix and loaded drugs. In vitro viability was studied on 4T1 mammary carcinoma mouse cells as a function of time and concentration of drug-loaded PMs. UA-PMs and free PMs alone were not effective in inhibiting the tumor cell growth whereas a viability of 40% was determined for cells treated with both PTX- and PTX/UA-loaded PMs. A synergic effect was noticed for PTX/UA-loaded PMs.
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Affiliation(s)
- Hildegard Herman
- “Aurel Ardelean” Institute of Life Sciences, Vasile Goldis Western University, Rebreanu Street, No. 86, 310414 Arad, Romania; (H.H.); (A.H.)
| | - Delia M. Rata
- Faculty of Medicine, “Apollonia” University of Iasi, Pacurari Street, No. 11, 700511 Iasi, Romania; (D.M.R.); (A.N.C.)
| | - Anca N. Cadinoiu
- Faculty of Medicine, “Apollonia” University of Iasi, Pacurari Street, No. 11, 700511 Iasi, Romania; (D.M.R.); (A.N.C.)
| | - Leonard I. Atanase
- Faculty of Medicine, “Apollonia” University of Iasi, Pacurari Street, No. 11, 700511 Iasi, Romania; (D.M.R.); (A.N.C.)
- Academy of Romanian Scientists, 050045 Bucharest, Romania
| | - Anca Hermenean
- “Aurel Ardelean” Institute of Life Sciences, Vasile Goldis Western University, Rebreanu Street, No. 86, 310414 Arad, Romania; (H.H.); (A.H.)
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8
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Onuh G, Harries D, Manor O. Depletion-Induced Self-Assembly of Colloidal Particles on a Solid Substrate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:8554-8561. [PMID: 38651184 PMCID: PMC11044580 DOI: 10.1021/acs.langmuir.4c00186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 03/25/2024] [Accepted: 03/25/2024] [Indexed: 04/25/2024]
Abstract
We investigate the depletion contributions to the self-assembly of microcolloids on solid substrates. The assembly is driven by the exclusion of nanoparticles and nonadsorbing polymers from the depletion zone between the microcolloids in the liquid and the underlying substrate. The model system consists of 1 μm polystyrene particles that we deposit on a flat glass slab in an electrolyte solution. Using polystyrene nanoparticles and poly(acrylic acid) polymers as depleting agents, we demonstrate in our experiments that nanoparticle concentrations of 0.5% (w/v) support well-ordered packing of microcolloids on glass, while the presence of polymers leads to irregular aggregate deposition structures. A mixture of nanoparticles and polymers enhances the formation of colloidal aggregate and particulate surface coverage compared to using the polymers alone as a depletion agent. Moreover, tuning the polymer ionization state from pH 4 to 9 modifies the polymer conformational state and radius of gyration, which in turn alters the microcolloid deposition from compact multilayers to flocculated structures. Our study provides entropic strategies for manipulating particulate assembly on substrates from dispersed to continuous coatings.
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Affiliation(s)
- Gideon Onuh
- The
Wolfson Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 3200000, Israel
| | - Daniel Harries
- The
Fritz Haber Research Center, and the Harvey M. Kruger Center for Nanoscience
& Nanotechnology, Institute of Chemistry, The Hebrew University, Jerusalem 9190401, Israel
| | - Ofer Manor
- The
Wolfson Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 3200000, Israel
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9
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Long S, Liu C, Ren H, Hu Y, Chen C, Huang Y, Li X. NIR-Mediated Deformation from a CNT-Based Bilayer Hydrogel. Polymers (Basel) 2024; 16:1152. [PMID: 38675070 PMCID: PMC11053785 DOI: 10.3390/polym16081152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/12/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Shape-shifting polymers are widely used in various fields such as intelligent switches, soft robots and sensors, which require both multiple stimulus-response functions and qualified mechanical strength. In this study, a novel near-infrared-light (NIR)-responsible shape-shifting hydrogel system was designed and fabricated through embedding vinylsilane-modified carbon nanotubes (CNTs) into particle double-network (P-DN) hydrogels by micellar copolymerisation. The dispersed brittle Poly(sodium 2-acrylamido-2-methylpropane-1-sulfonate) (PNaAMPS) network of the microgels can serve as sacrificial bonds to toughen the hydrogels, and the CNTs endow it with NIR photothermal conversion ability. The results show that the CNTs embedded in the P-DN hydrogels present excellent mechanical strength, i.e., a fracture strength of 312 kPa and a fracture strain of 357%. Moreover, an asymmetric bilayer hydrogel, where the active layer contains CNTs, can achieve 0°-110° bending deformation within 10 min under NIR irradiation and can realise complex deformation movement. This study provides a theoretical and experimental basis for the design and manufacture of photoresponsive soft actuators.
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Affiliation(s)
- Shijun Long
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, China; (C.L.); (H.R.); (Y.H.); (Y.H.)
- Hubei Longzhong Laboratory, Xiangyang 441000, China
- New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan 430068, China
| | - Chang Liu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, China; (C.L.); (H.R.); (Y.H.); (Y.H.)
| | - Han Ren
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, China; (C.L.); (H.R.); (Y.H.); (Y.H.)
| | - Yali Hu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, China; (C.L.); (H.R.); (Y.H.); (Y.H.)
| | - Chao Chen
- Hubei Key Laboratory of Polymer Materials, Hubei University, Wuhan 430062, China;
| | - Yiwan Huang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, China; (C.L.); (H.R.); (Y.H.); (Y.H.)
- Hubei Longzhong Laboratory, Xiangyang 441000, China
| | - Xuefeng Li
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, China; (C.L.); (H.R.); (Y.H.); (Y.H.)
- Hubei Longzhong Laboratory, Xiangyang 441000, China
- New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan 430068, China
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10
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Montalbo RCK, Wu MJ, Tu HL. One-step flow synthesis of size-controlled polymer nanogels in a fluorocarbon microfluidic chip. RSC Adv 2024; 14:11258-11265. [PMID: 38590347 PMCID: PMC11000227 DOI: 10.1039/d4ra01956c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 04/02/2024] [Indexed: 04/10/2024] Open
Abstract
Synthetic polymer nanoparticles (NPs) with biomimetic properties are ideally suited for different biomedical applications such as drug delivery and direct therapy. However, bulk synthetic approaches can suffer from poor reproducibility and scalability when precise size control or multi-step procedures are required. Herein, we report an integrated microfluidic chip for the synthesis of polymer NPs. The chip could sequentially perform homopolymer synthesis and subsequent crosslinking into NPs without intermediate purification. This was made possible by fabrication of the chip with a fluorinated elastomer and incorporation of two microfluidic mixers. The first was a long channel with passive mixing features for the aqueous RAFT synthesis of stimuli-responsive polymers in ambient conditions. The polymers were then directly fed into a hydrodynamic flow focusing (HFF) junction that rapidly mixed them with a crosslinker solution to produce NPs. Compared to microfluidic systems made of PDMS or glass, our chip had better compatibility and facile fabrication. The polymers were synthesized with high monomer conversion and the NP size was found to be influenced by the flow rate ratio between the crosslinker solution and polymer solution. This allowed for the size to be predictably controlled by careful adjustment of the fluid flow rates. The size of the NPs and their stimuli-responses were studied using DLS and SEM imaging. This microfluidic chip design can potentially streamline and provide some automation for the bottom-up synthesis of polymer NPs while offering on-demand size control.
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Affiliation(s)
- Reynaldo Carlos K Montalbo
- Institute of Chemistry, Academia Sinica Taipei 11529 Taiwan
- Nanoscience and Technology, Taiwan International Graduate Program, Academia Sinica Taipei 11529 Taiwan
- Department of Engineering and System Science, National Tsing-Hua University Hsinchu 300044 Taiwan
| | - Meng-Jie Wu
- Institute of Chemistry, Academia Sinica Taipei 11529 Taiwan
- Department of Chemistry, National Cheng-Kung University Tainan 70101 Taiwan
| | - Hsiung-Lin Tu
- Institute of Chemistry, Academia Sinica Taipei 11529 Taiwan
- Nanoscience and Technology, Taiwan International Graduate Program, Academia Sinica Taipei 11529 Taiwan
- Genome and Systems Biology Degree Program, Academia Sinica and National Taiwan University Taiwan
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11
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Coldstream JG, Camp PJ, Phillips DJ, Dowding PJ. Polymeric surfactants at liquid-liquid interfaces: Dependence of structural and thermodynamic properties on copolymer architecture. J Chem Phys 2024; 160:054902. [PMID: 38341694 DOI: 10.1063/5.0189156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 01/11/2024] [Indexed: 02/13/2024] Open
Abstract
Polymeric surfactants are amphiphilic molecules with two or more different types of monomers. If one type of monomer interacts favorably with a liquid, and another type of monomer interacts favorably with another, immiscible liquid, then polymeric surfactants adsorb at the interface between the two liquids and reduce the interfacial tension. The effects of polymer architecture on the structural and thermodynamic properties of the liquid-liquid interface are studied using molecular simulations. The interface is modeled with a non-additive binary Lennard-Jones fluid in the two-phase region of the phase diagram. Block and gradient copolymer surfactants are represented with coarse-grained, bead-spring models, where each component of the polymer favors one or the other liquid. Gradient copolymers have a greater concentration at the interface than do block copolymers because the gradient copolymers adopt conformations partially aligned with the interface. The interfacial tension is determined as a function of the surface excess of polymeric surfactant. Gradient copolymers are more potent surfactants than block copolymers because the gradient copolymers cross the dividing surface multiple times, effectively acting as multiple individual surfactants. For a given surface excess, the interfacial tension decreases monotonically when changing from a block to a gradient architecture. The coarse-grained simulations are complemented by all-atom simulations of acrylic-acid/styrene copolymers at the chloroform-water interface, which have been studied in experiments. The agreement between the simulations (both coarse-grained and atomistic) and experiments is shown to be excellent, and the molecular-scale structures identified in the simulations help explain the variation of surfactancy with copolymer architecture.
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Affiliation(s)
- Jonathan G Coldstream
- School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, Scotland
| | - Philip J Camp
- School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, Scotland
| | - Daniel J Phillips
- Infineum UK Ltd., P.O. Box 1, Milton Hill, Abingdon OX13 6BB, United Kingdom
| | - Peter J Dowding
- Infineum UK Ltd., P.O. Box 1, Milton Hill, Abingdon OX13 6BB, United Kingdom
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12
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Sahu B, Sinha P, Kumar D, Patel K, Banerjee S. Magnetically Recyclable Nanoscale Zero-Valent Iron-Mediated PhotoRDRP in Ionic Liquid toward Smart, Functional Polymers. Macromol Rapid Commun 2024; 45:e2300500. [PMID: 37870940 DOI: 10.1002/marc.202300500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/19/2023] [Indexed: 10/25/2023]
Abstract
A facile method based on recyclable nanoscale zero-valent iron (nZVI)-mediated photoinduced reversible deactivation radical polymerization in ionic liquid (IL) leads to the synthesis of narrow disperse poly(tert-butyl methacrylate) (PTBMA), amphiphilic PTBMA-block-poly(poly(ethylene glycol)methacrylate) diblock copolymer and double hydrophilic poly(methacrylic acid)-block-poly(poly(ethylene glycol)methacrylate) (PMAA-b-PPEGMA) diblock copolymers thereof. Stimuli response of the synthesized PMAA-b-PPEGMA diblock copolymer against variation in pH and temperature is assessed. Recyclability of the nZVI (catalyst) and IL (solvent) is established. Polymerization may be switched ON or OFF, simply by turning the UVA light irradiation ON or OFF, offering temporal control. The diblock copolymer self-aggregates into spherical nanoaggregates which are employed for encapsulation of coumarin 102 (C102, a typical hydrophobic dye), describing their potential application in drug delivery applications. The facile synthesis strategy may open up new avenues for the preparation of intelligent functional polymers for engineering and biomedical applications.
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Affiliation(s)
- Bhanendra Sahu
- Department of Chemistry, Indian Institute of Technology Bhilai, Durg, Chhattisgarh, 491001, India
| | - Priyank Sinha
- Department of Chemistry, Indian Institute of Technology Bhilai, Durg, Chhattisgarh, 491001, India
| | - Devendra Kumar
- Department of Chemistry, Indian Institute of Technology Bhilai, Durg, Chhattisgarh, 491001, India
| | - Kundan Patel
- Department of Chemistry, Indian Institute of Technology Bhilai, Durg, Chhattisgarh, 491001, India
| | - Sanjib Banerjee
- Department of Chemistry, Indian Institute of Technology Bhilai, Durg, Chhattisgarh, 491001, India
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13
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Gomte SS, Agnihotri TG, Khopade S, Jain A. Exploring the potential of pH-sensitive polymers in targeted drug delivery. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:228-268. [PMID: 37927045 DOI: 10.1080/09205063.2023.2279792] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 11/01/2023] [Indexed: 11/07/2023]
Abstract
The pH-sensitive polymers have attained significant attention in the arena of targeted drug delivery (TDD) because of their exceptional capability to respond to alteration in pH in various physiological environments. This attribute aids pH-sensitive polymers to act as smart carriers for therapeutic agents, transporting them precisely to target locations while curtailing the release of drugs in off-targeted sites, thereby diminishing side effects. Many pH-responsive polymers in TDD have revealed promising results, with increased therapeutic efficacy and decreased toxic effects. Several pH-sensitive polymers, including, hydroxy-propyl-methyl cellulose, poly (methacrylic acid) (Eudragit series), poly (acrylic acid), and chitosan, have been broadly studied for their myriad applications in the management of various types of diseases. Additionally, the amalgamation of pH-sensitive polymers with, additive manufacturing techniques like 3D printing, has resulted in the progression of novel drug delivery systems that regulate drug release in a controlled manner. Herein, types of pH-sensitive polymers in TDD are systemically reviewed. We have briefly discussed the nanocarriers employed for the delivery of various pH-sensitive polymers in TDD. Finally, miscellaneous applications of pH-sensitive polymers are discussed thoroughly with special attention to the implication of 3D printing in pH-sensitive polymers.
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Affiliation(s)
- Shyam Sudhakar Gomte
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, Gandhinagar, Gujarat, India
| | - Tejas Girish Agnihotri
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, Gandhinagar, Gujarat, India
| | - Shivani Khopade
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, Gandhinagar, Gujarat, India
| | - Aakanchha Jain
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER)-Ahmedabad, Palaj, Gandhinagar, Gujarat, India
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14
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Sierra‐Romero A, Novakovic K, Geoghegan M. A reversible water-based electrostatic adhesive. Angew Chem Int Ed Engl 2024; 63:e202310750. [PMID: 37899307 PMCID: PMC10952749 DOI: 10.1002/anie.202310750] [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: 07/26/2023] [Revised: 10/20/2023] [Accepted: 10/27/2023] [Indexed: 10/31/2023]
Abstract
Commercial adhesives typically fall into two categories: structural or pressure sensitive. Structural glues rely on covalent bonds formed during curing and provide high tensile strength whilst pressure-sensitive adhesives use physical bonding to provide weaker adhesion, but with considerable convenience for the user. Here, a new class of adhesive is presented that is also reversible, with a bond strength intermediate between those of pressure-sensitive and structural adhesives. Complementary water-based formulations incorporating oppositely charged polyelectrolytes form electrostatic bonds that may be reversed through immersion in a low or high pH aqueous environment. This electrostatic adhesive has the advantageous property that it exhibits good adhesion to low-energy surfaces such as polypropylene. Furthermore, it is produced by the emulsion copolymerization of commodity materials, styrene and butyl acrylate, which makes it inexpensive and opens the possibility of industrial production. Bio-based materials have been also integrated into the formulations to further increase sustainability. Moreover, unlike other water-based glues, adhesion does not significantly degrade in humid environments. Because such electrostatic adhesives do not require mechanical detachment, they are appropriate for the large-scale recycling of, e.g., bottle labels or food packaging. The adhesive is also suitable for dismantling components in areas as varied as automotive parts and electronics.
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Affiliation(s)
| | | | - Mark Geoghegan
- School of EngineeringNewcastle UniversityNewcastle Upon TyneNE1 7RUUK
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15
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Wei Z, Vandergriff A, Liu CH, Liaqat M, Nieh MP, Lei Y, He J. Strongly coupled plasmonic metal nanoparticles with reversible pH-responsiveness and highly reproducible SERS in solution. NANOSCALE 2024; 16:708-718. [PMID: 38086657 DOI: 10.1039/d3nr05071h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
We report a facile method to prepare polymer-grafted plasmonic metal nanoparticles (NPs) that exhibit pH-responsive surface-enhanced Raman scattering (SERS). The concept is based on the use of pH-responsive polymers, such as poly(acrylic acid) (PAA) and poly(allylamine hydrochloride) (PAH), as multidentate ligands to wrap around the surface of NPs instead of forming polymer brushes. Upon changing the solvent quality, the grafted pH-responsive polymers would drive reversible aggregation of NPs, leading to a decreased interparticle distance. This creates numerous hot spots, resulting in a secondary enhancement of SERS as compared to the SERS from discrete NPs. For negatively charged PAA-grafted NPs, the SERS response at pH 2.5 showed a secondary enhancement of up to 104-fold as compared to the response for discrete NPs at pH 12. Similarly, positively charged PAH-grafted AuNPs showed an opposite response to pH. We demonstrated that enhanced SERS with thiol-containing and charged molecular probes was indeed from the pH-driven solubility change of polymer ligands. Our method is different from the conventional SERS sensors in the solid state. With pH-responsive polymer-grafted NPs, SERS can be performed in solution with high reproducibility and sensitivity but without the need for sample pre-concentration. These findings could pave the way for innovative designs of polymer ligands for metal NPs where polymer ligands do not compromise interparticle plasmon coupling.
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Affiliation(s)
- Zichao Wei
- Department of Chemistry, University of Connecticut, 55 N. Eagleville Road, Unit 3060, Storrs, Connecticut 06269-3060, USA.
| | - Audrey Vandergriff
- Department of Chemistry, University of Connecticut, 55 N. Eagleville Road, Unit 3060, Storrs, Connecticut 06269-3060, USA.
| | - Chung-Hao Liu
- Polymer Program, University of Connecticut, Storrs, CT 06269, USA
| | - Maham Liaqat
- Department of Chemistry, University of Connecticut, 55 N. Eagleville Road, Unit 3060, Storrs, Connecticut 06269-3060, USA.
| | - Mu-Ping Nieh
- Polymer Program, University of Connecticut, Storrs, CT 06269, USA
- Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
- Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Yu Lei
- Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, CT 06269, USA
| | - Jie He
- Department of Chemistry, University of Connecticut, 55 N. Eagleville Road, Unit 3060, Storrs, Connecticut 06269-3060, USA.
- Polymer Program, University of Connecticut, Storrs, CT 06269, USA
- Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
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16
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Morariu S, Avadanei M, Nita LE. Effect of pH on the Poly(acrylic acid)/Poly(vinyl alcohol)/Lysozyme Complexes Formation. Molecules 2023; 29:208. [PMID: 38202791 PMCID: PMC10780248 DOI: 10.3390/molecules29010208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 12/20/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
The interactions between poly(acrylic acid) (PAA), poly(vinyl alcohol) (PVA), and lysozyme (Lys) in an aqueous environment at pHs of 2, 4, and 7.4 were discussed considering the experimental data obtained by turbidimetry, electrokinetic and rheological measurements, and FTIR analysis. It was found that the increase in PAA amount reduces the coacervation zone by shifting the critical pHcr1to higher values while the critical pHcr2 remains unchanged. The coacervation zone extended from 3.1-4.2 to 2.9-4.7 increasing the Lys concentration from 0.2% to 0.5%. The zeta potential measurements showed that the PAA-PVA-Lys mixture in water is the most stable in the pH range of 4.5-8. Zero shear viscosity exhibited deviations from additivity at both investigated pHs, and a maximum value corresponding to a maximum hydrodynamic volume was revealed at PAA weight fractions of 0.4 and 0.5 for pHs of 4 and 7.4, respectively. The binding affinity to Lys of PAA, established by molecular dynamics simulation, was slightly higher than that of PVA. The more stable complex was PAA-Lys formed in a very acidic environment; for that, a binding affinity of -7.1 kcal/mol was determined.
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Affiliation(s)
- Simona Morariu
- “Petru Poni” Institute of Macromolecular Chemistry, 41-A Grigore Ghica Voda Alley, 700487 Iasi, Romania; (M.A.); (L.E.N.)
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17
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Chen M, Kumrić KR, Thacker C, Prodanović R, Bolognesi G, Vladisavljević GT. Selective Adsorption of Ionic Species Using Macroporous Monodispersed Polyethylene Glycol Diacrylate/Acrylic Acid Microgels with Tunable Negative Charge. Gels 2023; 9:849. [PMID: 37998939 PMCID: PMC10670463 DOI: 10.3390/gels9110849] [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: 10/03/2023] [Revised: 10/20/2023] [Accepted: 10/23/2023] [Indexed: 11/25/2023] Open
Abstract
Monodispersed polyethylene glycol diacrylate (PEGDA)/acrylic acid (AA) microgels with a tuneable negative charge and macroporous internal structure have been produced using a Lego-inspired droplet microfluidic device. The surface charge of microgels was controlled by changing the content of AA in the monomer mixture from zero (for noncharged PEGDA beads) to 4 wt%. The macroporosity of the polymer matrix was introduced by adding 20 wt% of 600-MW polyethylene glycol (PEG) as a porogen material into the monomer mixture. The porogen was successfully leached out with acetone after UV-crosslinking, which resulted in micron-sized cylindrical pores with crater-like morphology, uniformly arranged on the microgel surface. Negatively charged PEGDA/AA beads showed improved adsorption capacity towards positively charged organic dyes (methylene blue and rhodamine B) compared to neutral PEGDA beads and high repulsion of negatively charged dye molecules (methyl orange and congo red). Macroporous microgels showed better adsorption properties than nonporous beads, with a maximum adsorption capacity towards methylene blue of 45 mg/g for macroporous PEGDA/AA microgels at pH 8.6, as compared to 23 mg/g for nonporous PEGDA/AA microgels at the same pH. More than 98% of Cu(II) ions were removed from 50 ppm solution at pH 6.7 using 2.7 mg/mL of macroporous PEGDA/AA microgel. The adsorption of cationic species was significantly improved when pH was increased from 3 to 9 due to a higher degree of ionization of AA monomeric units in the polymer network. The synthesized copolymer beads can be used in drug delivery to achieve improved loading capacity of positively charged therapeutic agents and in tissue engineering, where a negative charge of scaffolds coupled with porous structure can help to achieve improved permeability of high-molecular-weight metabolites and nutrients, and anti-fouling activity against negatively charged species.
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Affiliation(s)
- Minjun Chen
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, UK; (M.C.); (G.B.)
| | - Ksenija R. Kumrić
- Laboratory of Physics, Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11001 Belgrade, Serbia
| | - Conner Thacker
- Department of Materials, Loughborough University, Loughborough LE11 3TU, UK;
| | - Radivoje Prodanović
- Faculty of Chemistry, University of Belgrade, Studentski Trg 12-16, 11000 Belgrade, Serbia;
| | - Guido Bolognesi
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, UK; (M.C.); (G.B.)
- Department of Chemistry, University College London, London WC1H 0AJ, UK
| | - Goran T. Vladisavljević
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, UK; (M.C.); (G.B.)
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18
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Maan AM, Hofman AH, Pelras T, Ruhof IM, Kamperman M, de Vos WM. Toward Effective and Adsorption-Based Antifouling Zipper Brushes: Effect of pH, Salt, and Polymer Design. ACS APPLIED POLYMER MATERIALS 2023; 5:7968-7981. [PMID: 37854302 PMCID: PMC10580283 DOI: 10.1021/acsapm.3c01217] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 09/01/2023] [Indexed: 10/20/2023]
Abstract
The undesired spontaneous deposition and accumulation of matter on surfaces, better known as fouling, is a problematic and often inevitable process plaguing a variety of industries. This detrimental process can be reduced or even prevented by coating surfaces with a dense layer of end-grafted polymer: a polymer brush. Producing such polymer brushes via adsorption presents a very attractive technique, as large surfaces can be coated in a quick and simple manner. Recently, we introduced a simple and scalable two-step adsorption strategy to fabricate block copolymer-based antifouling coatings on hydrophobic surfaces. This two-step approach involved the initial adsorption of hydrophobic-charged diblock copolymer micelles acting as a primer, followed by the complexation of oppositely charged-antifouling diblock copolymers to form the antifouling brush coating. Here, we significantly improve this adsorption-based zipper brush via systematic tuning of various parameters, including pH, salt concentration, and polymer design. This study reveals several key outcomes. First of all, increasing the hydrophobic/hydrophilic block ratio of the anchoring polymeric micelles (i.e., decreasing the hydrophilic corona) promotes adsorption to the surface, resulting in the most densely packed, uniform, and hydrophilic primer layers. Second, around a neutral pH and at a low salt concentration (1 mM), complexation of the weak polyelectrolyte (PE) blocks results in brushes with the best antifouling efficacy. Moreover, by tuning the ratio between these PE blocks, the brush density can be increased, which is also directly correlated to the antifouling performance. Finally, switching to different antifouling blocks can increase the internal density or strengthen the bound hydration layer of the brush, leading to an additional enhancement of the antifouling properties (>99% lysozyme, 87% bovine serum albumin).
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Affiliation(s)
- Anna M.
C. Maan
- Polymer
Science, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Anton H. Hofman
- Polymer
Science, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Théophile Pelras
- Macromolecular
Chemistry and New Polymeric Materials, Zernike Institute for Advanced
Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Ilan M. Ruhof
- Polymer
Science, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Marleen Kamperman
- Polymer
Science, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Wiebe M. de Vos
- Membrane
Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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19
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Park J, Huang S, Koel BE, Jaffé PR. Enhanced Feammox activity and perfluorooctanoic acid (PFOA) degradation by Acidimicrobium sp. Strain A6 using PAA-coated ferrihydrite as an electron acceptor. JOURNAL OF HAZARDOUS MATERIALS 2023; 459:132039. [PMID: 37480613 PMCID: PMC10529297 DOI: 10.1016/j.jhazmat.2023.132039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/08/2023] [Accepted: 07/09/2023] [Indexed: 07/24/2023]
Abstract
Acidimicrobium sp. Strain A6 (A6) can degrade perfluoroalkyl acids (PFAAs) by oxidizing NH4+ while reducing Fe(Ⅲ). However, supplying and distributing Fe(III) phases in sediments is challenging since surface charges of Fe(III)-phases are typically positive while those of sediments are negative. Therefore, ferrihydrite particles were coated with polyacrylic acid (PAA) with four different molecular weights, resulting in a negative zeta potential on their surface. Zeta potential was determined as a function of pH and PAA loading, with the lowest value observed when the PAA/ferrihydrite ratio was > 1/5 (w/w) at a pH of 5.5. Several 50-day incubations with an A6-enrichment culture were conducted to determine the effect of PAA-coated ferrihydrite as the electron acceptor of A6 on the Feammox activity and PFOA degradation. NH4+ oxidation, PFOA degradation, production of shorter-chain PFAS, and F- were observed in all PAA-coated samples. The 6 K and 450 K treatments exhibited significant reductions in PFOA concentration and substantial F- production compared to incubations with bare ferrihydrite. Electrochemical impedance spectroscopy showed lowered charge transfer resistance in the presence of PAA-coated ferrihydrite, indicating that PAAs facilitated electron transfer to ferrihydrite. This study highlights the potential of PAA-coated ferrihydrite in accelerating PFAS defluorination, providing novel insights for A6-based bioremediation strategies.
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Affiliation(s)
- Jinhee Park
- Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ 08544, USA
| | - Shan Huang
- Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ 08544, USA
| | - Bruce E Koel
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA
| | - Peter R Jaffé
- Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ 08544, USA.
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20
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Lin HY, Yao CY, Li J, Nimal Gunaratne HQ, Singh W, Huang M, Anslyn EV, de Silva AP. Remarkably Selective Binding, Behavior Modification, and Switchable Release of (Bipyridine) 3Ru(II) vis-à-vis (Phenanthroline) 3Ru(II) by Trimeric Cyclophanes in Water. JACS AU 2023; 3:2257-2268. [PMID: 37654579 PMCID: PMC10466343 DOI: 10.1021/jacsau.3c00279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/17/2023] [Accepted: 07/19/2023] [Indexed: 09/02/2023]
Abstract
A recurring dream of molecular recognition is to create receptors that distinguish between closely related targets with sufficient accuracy, especially in water. The more useful the targets, the more valuable the dream becomes. We now present multianionic trimeric cyclophane receptors with a remarkable ability to bind the iconic (bipyridine)3Ru(II) (with its huge range of applications) while rejecting the nearly equally iconic (phenanthroline)3Ru(II). These receptors not only selectively capture (bipyridine)3Ru(II) but also can be redox-switched to release the guest. 1D- and 2D(ROESY)-NMR spectroscopy, luminescence spectroscopy, and molecular modeling enabled this discovery. This outcome allows the control of these applications, e.g., as a photocatalyst or as a luminescent sensor, by selectively hiding or exposing (bipyridine)3Ru(II). Overall, a 3D nanometric object is selected, picked-up, and dropped-off by a discrete molecular host. The multianionic receptors protect excited states of these metal complexes from phenolate quenchers so that the initial step in photocatalytic phenolate oxidation is retarded by nearly 2 orders of magnitude. This work opens the way for (bipyridine)3Ru(II) to be manipulated in the presence of other functional nano-objects so that many of its applications can be commanded and controlled. We have a cyclophane-based toolkit that can emulate some aspects of proteins that selectively participate in cell signaling and metabolic pathways by changing shape upon environmental commands being received at a location remote from the active site.
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Affiliation(s)
- Hong-Yu Lin
- School
of Chemistry and Chemical Engineering, Queen’s
University, Belfast BT9 5AG, United
Kingdom
| | - Chao-Yi Yao
- School
of Chemistry and Chemical Engineering, Queen’s
University, Belfast BT9 5AG, United
Kingdom
- School
of Chemistry and Chemical Engineering, Central
South University, Yuelu
District, Changsha, Hunan
Province 410006, P.R. China
| | - Jialu Li
- School
of Chemistry and Chemical Engineering, Queen’s
University, Belfast BT9 5AG, United
Kingdom
| | - H. Q. Nimal Gunaratne
- School
of Chemistry and Chemical Engineering, Queen’s
University, Belfast BT9 5AG, United
Kingdom
| | - Warispreet Singh
- School
of Chemistry and Chemical Engineering, Queen’s
University, Belfast BT9 5AG, United
Kingdom
- Hub
for Biotechnology in the Built Environment, Northumbria University, Newcastle
upon Tyne NE1 8ST, United Kingdom
| | - Meilan Huang
- School
of Chemistry and Chemical Engineering, Queen’s
University, Belfast BT9 5AG, United
Kingdom
| | - Eric V. Anslyn
- School
of Chemistry and Chemical Engineering, Queen’s
University, Belfast BT9 5AG, United
Kingdom
- Department
of Chemistry, University of Texas at Austin, 100 E 24th Street, Norman Hackerman
Building (Room 114A), Austin, Texas 78712, United States
| | - A. Prasanna de Silva
- School
of Chemistry and Chemical Engineering, Queen’s
University, Belfast BT9 5AG, United
Kingdom
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21
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Tawagi E, Ung T, Cheng HLM, Santerre JP. Arrhenius-model-based degradable oligourethane hydrogels for controlled growth factor release. Acta Biomater 2023; 166:167-186. [PMID: 37207744 DOI: 10.1016/j.actbio.2023.05.024] [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: 02/16/2023] [Revised: 04/22/2023] [Accepted: 05/12/2023] [Indexed: 05/21/2023]
Abstract
Biodegradable hydrogels are growing in demand to enable the delivery of biomolecules (e.g. growth factors) for regenerative medicine. This research investigated the resorption of an oligourethane/polyacrylic acid hydrogel, a biodegradable hydrogel which supports tissue regeneration. The Arrhenius model was used to characterize the resorption of the polymeric gels in relevant in vitro conditions, and the Flory-Rehner equation was used to correlate the volumetric swelling ratio with the extent of degradation. The study found that the swelling rate of the hydrogel follows the Arrhenius model at elevated temperatures, estimating degradation time in saline solution at 37°C to be between 5 and 13 months, serving as a preliminary approximation of degradation in vivo. The degradation products had low cytotoxicity towards endothelial cells, and the hydrogel supported stromal cell proliferation. Additionally, the hydrogels were able to release growth factors and maintain the biomolecules' bioactivity towards cell proliferation. The study of the vascular endothelial growth factor (VEGF) release from the hydrogel used a diffusion process model, showing that the electrostatic attraction between VEGF and the anionic hydrogel allowed for controlled and sustained VEGF release over three weeks. In a rat subcutaneous implant model, a selected hydrogel with desired degradation rates exhibited minimal foreign body response and supported M2a macrophage phenotype, and vascularization. The low M1 and high M2a macrophage phenotypes within the implants were associated with tissue integration. This research supports the use of oligourethane/polyacrylic acid hydrogels as a promising material for delivering growth factors and supporting tissue regeneration. STATEMENT OF SIGNIFICANCE: There is a need for degradable elastomeric hydrogels that can support the formation of soft tissues and minimize long-term foreign body responses. An Arrhenius model was used to estimate the relative breakdown of hydrogels, in-vitro. The results demonstrate that hydrogels made from a combination of poly(acrylic acid) and oligo-urethane diacrylates can be designed to resorb over defined periods ranging from months to years depending on the chemical formulation prescribed by the model. The hydrogel formulations also provided for different release profiles of growth factors, relevant to tissue regeneration. In-vivo, these hydrogels had minimal inflammatory effects and showed evidence of integration into the surrounding tissue. The hydrogel approach can help the field design a broader range of biomaterials for tissue regeneration.
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Affiliation(s)
- Eric Tawagi
- Institute of Biomedical Engineering, University of Toronto, 661 University Avenue, 14th Floor, Room 1435, Toronto, ON M5G 1M1, Canada; Translational Biology & Engineering Program, Ted Rogers Centre for Heart Research, Toronto, ON, Canada
| | - Trevor Ung
- Translational Biology & Engineering Program, Ted Rogers Centre for Heart Research, Toronto, ON, Canada
| | - Hai-Ling Margaret Cheng
- Institute of Biomedical Engineering, University of Toronto, 661 University Avenue, 14th Floor, Room 1435, Toronto, ON M5G 1M1, Canada; Translational Biology & Engineering Program, Ted Rogers Centre for Heart Research, Toronto, ON, Canada; The Edward S. Rogers Sr. Department of Electrical & Computer Engineering, University of Toronto, Toronto, ON, Canada
| | - J Paul Santerre
- Institute of Biomedical Engineering, University of Toronto, 661 University Avenue, 14th Floor, Room 1435, Toronto, ON M5G 1M1, Canada; Translational Biology & Engineering Program, Ted Rogers Centre for Heart Research, Toronto, ON, Canada; Faculty of Dentistry, University of Toronto, Toronto, ON, Canada.
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22
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Moradi N, Soufi-Zomorrod M, Hosseinzadeh S, Soleimani M. Poly (acrylic acid)/tricalcium phosphate nanoparticles scaffold enriched with exosomes for cell-free therapy in bone tissue engineering: An in vivo evaluation. BIOIMPACTS : BI 2023; 14:27510. [PMID: 38938758 PMCID: PMC11199929 DOI: 10.34172/bi.2023.27510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 12/09/2022] [Accepted: 01/30/2023] [Indexed: 06/29/2024]
Abstract
Introduction This study aimed to assess the potential of poly (acrylic acid)/tricalcium phosphate nanoparticles (PAA/triCaPNPs) scaffold in terms of biocompatibility and osteoconductivity properties the in-vivo evaluation as well as to investigate the performance of PAA/triCaPNPs scaffold (with or without exosomes derived from UC-MSCs) for bone regeneration of rat critical-sized defect. Methods PAA/triCaPNPs scaffold was made from acrylic acid (AA) monomer, N,N'-methylenebisacrylamide (MBAA), sodium bicarbonate (SBC), and ammonium persulfate (APS) through freeze-drying method. For in vivo evaluation, we randomly divided 24 rats into three groups. The rat calvarial bone defects were treated as follows: (1) Control group: defects without any treatment, (2) scaffold group: defects treated with scaffold only, (3) scaffold+exo group: defects treated with scaffold enriched with exosomes (1 μg/μL, 150 μg per rat). Eight- and 12-weeks post-surgery, half of the animals were sacrificed and bone regeneration was examined through micro-computerized tomography (µ-CT), histological staining, and immunohistochemistry (IHC). Results Quantitative analysis based on µ-CT scan images at 8 and 12 weeks post-implantation clearly indicated that healing rate for defects that were filled with scaffold enriched with exosome was significantly higher than defects filled with scaffold without exosome. The H&E and Masson staining results revealed that more new bone-like form developed in the scaffold+exo group than that in control and scaffold groups. Further, IHC staining for osteocalcin and CD31 confirmed that more bone healing in the scaffold+exo group at 12 weeks could be associated with osteogenesis and angiogenesis concurrently. Conclusion In the present study, we aimed to investigate the therapeutic potential of PAA/triCaPNPs scaffold as a carrier of human UC-MSC-derived exosome to achieve the exosome-controlled release on calvarial bone defect. The in vivo results indicated that the exosome-enriched scaffold could effectively minify the defect area and improve the bone healing in rat model, and as such it could be an option for exosome-based therapy.
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Affiliation(s)
- Nahid Moradi
- Hematology and Cell Therapy Department, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mina Soufi-Zomorrod
- Hematology and Cell Therapy Department, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Simzar Hosseinzadeh
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoud Soleimani
- Hematology and Cell Therapy Department, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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23
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Chou PI, Ghim D, Gupta P, Singamaneni S, Lee B, Jun YS. Surface Functional Groups Affect Iron (Hydr)oxide Heterogeneous Nucleation: Implications for Membrane Scaling. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023. [PMID: 37467155 DOI: 10.1021/acs.est.3c01528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
Because of its favorable thermodynamics and fast kinetics, heterogeneous solid nucleation on membranes triggers early-stage mineral scaling. Iron (hydr)oxide, a typical membrane scale, initially forms as nanoparticles that interact with surface functional groups on membranes, but these nanoscale phenomena are difficult to observe in real time. In this study, we utilized in situ grazing incidence small angle X-ray scattering and ex situ atomic force microscopy to examine the heterogeneous nucleation of iron (hydr)oxide on surface functional groups commonly used in membranes, including hydroxyl (OH), carboxyl (COOH), and fluoro (F) groups. We found that, compared to nucleation on hydrophilic OH- and COOH-surfaces, the high hydrophobicity of an F-modified surface significantly reduced the extents of both heterogeneously and homogeneously formed iron (hydr)oxide nucleation. Moreover, on the OH-surface, the high functional group density of 0.76 nmol/cm2 caused faster heterogeneous nucleation than that on a COOH-surface, with a density of 0.28 ± 0.04 nmol/cm2. The F-surface also had the highest heterogeneous nucleation energy barrier (26 ± 0.6 kJ/mol), followed by COOH- (23 ± 0.8 kJ/mol) and OH- (20 ± 0.9 kJ/mol) surfaces. The kinetic and thermodynamic information provided here will help us better predict the rates and extents of early-stage scaling of iron (hydr)oxide nanoparticles in membrane processes.
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Affiliation(s)
- Ping-I Chou
- Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, One Brookings Drive, Campus Box 1180, St. Louis, Missouri 63130, United States
| | - Deoukchen Ghim
- Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, One Brookings Drive, Campus Box 1180, St. Louis, Missouri 63130, United States
| | - Prashant Gupta
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, One Brookings Drive, Campus Box 1185, St. Louis, Missouri 63130, United States
| | - Srikanth Singamaneni
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, One Brookings Drive, Campus Box 1185, St. Louis, Missouri 63130, United States
| | - Byeongdu Lee
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Young-Shin Jun
- Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, One Brookings Drive, Campus Box 1180, St. Louis, Missouri 63130, United States
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24
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Ren Q, Wang L, Qian W, Chen B, Shuai Q, Yan Y. Flash Nanoprecipitation Fabrication of PEI@Amorphous Calcium Carbonate Hybrid Nanoparticles for siRNA Delivery. Macromol Biosci 2023; 23:e2300085. [PMID: 37087721 DOI: 10.1002/mabi.202300085] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/06/2023] [Indexed: 04/24/2023]
Abstract
RNA interference (RNAi) is a promising approach for disease treatments. But the development of safe and effective delivery carriers remains a major challenge. Organic-inorganic hybrid nanoparticles (NPs), with the integration of functions from distinct materials, show great potential in small interfering RNA (siRNA) delivery. Herein, pH responsive amorphous calcium carbonate NPs (ACC NPs) are prepared using flash nanoprecipitation and hybrid NPs are constructed by coating ACC NPs with polyethyleneimine (PEI) for efficient siRNA delivery. PEI/ACC NPs show robust pH responsiveness and stability as well as effective siRNA loading and protection. Furthermore, siRNA-loaded PEI/ACC NPs demonstrate enhanced cellular uptake and efficient endosomal escape, mediating improved siRNA delivery compared to pure PEI. These findings suggest that PEI/ACC NPs may have great potential in siRNA delivery for RNAi-based therapy.
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Affiliation(s)
- Qidi Ren
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Lu Wang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Wenfei Qian
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Baiqiu Chen
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Qi Shuai
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Yunfeng Yan
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014, China
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25
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Adane AM, Park SY. Bilayer Actuator Film for Urea Biosensing with Dual Responsiveness: Bending Actuation and Photonic Color Change. ACS Sens 2023; 8:2290-2297. [PMID: 37213078 DOI: 10.1021/acssensors.3c00296] [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] [Indexed: 05/23/2023]
Abstract
A noninvasive sweat-based biosensor was developed for urea detection using a photonic bilayer actuator film (BAF) consisting of an interpenetrating polymer network (IPN) as the active layer and a flexible poly(ethylene terephthalate) (PET) substrate as the passive layer (IPN/PET). The active IPN layer comprises intertwined solid-state cholesteric liquid crystal and poly(acrylic acid) (PAA) networks. Urease was immobilized in the PAA network in the IPN layer of the photonic BAF. The interaction with aqueous urea altered the curvature and photonic color of the photonic urease-immobilized IPN/PET (IPNurease/PET) BAF. The curvature (and wavelength of the photonic color) of the IPNurease/PET BAF increased linearly with urea concentration (Curea) in the range of Curea = 20-65 (and 30-65) mM with a limit of detection value of 1.42 (and 1.34) mM. The developed photonic IPNurease/PET BAF exhibited high selectivity toward urea and excellent spike test results with real human sweat. This novel IPNurease/PET BAF is promising because it enables battery-free, cost-effective, and visual detection-based analysis without the use of sophisticated instruments. Furthermore, the application of this photonic IPN/PET BAF can be easily extended to other biosensors by immobilizing other receptors on the IPN.
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Affiliation(s)
- Amhagiyorgis Mesfin Adane
- School of Applied Chemical Engineering, Polymeric Nano Materials Laboratory, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Soo-Young Park
- School of Applied Chemical Engineering, Polymeric Nano Materials Laboratory, Kyungpook National University, Daegu 41566, Republic of Korea
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26
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Sun Q, Yang Z, Qi X. Design and Application of Hybrid Polymer-Protein Systems in Cancer Therapy. Polymers (Basel) 2023; 15:polym15092219. [PMID: 37177365 PMCID: PMC10181109 DOI: 10.3390/polym15092219] [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: 02/28/2023] [Revised: 04/29/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023] Open
Abstract
Polymer-protein systems have excellent characteristics, such as non-toxic, non-irritating, good water solubility and biocompatibility, which makes them very appealing as cancer therapeutics agents. Inspiringly, they can achieve sustained release and targeted delivery of drugs, greatly improving the effect of cancer therapy and reducing side effects. However, many challenges, such as reducing the toxicity of materials, protecting the activities of proteins and controlling the release of proteins, still need to be overcome. In this review, the design of hybrid polymer-protein systems, including the selection of polymers and the bonding forms of polymer-protein systems, is presented. Meanwhile, vital considerations, including reaction conditions and the release of proteins in the design process, are addressed. Then, hybrid polymer-protein systems developed in the past decades for cancer therapy, including targeted therapy, gene therapy, phototherapy, immunotherapy and vaccine therapy, are summarized. Furthermore, challenges for the hybrid polymer-protein systems in cancer therapy are exemplified, and the perspectives of the field are covered.
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Affiliation(s)
- Qi Sun
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Beijing 100069, China
- Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing 100069, China
| | - Zhenzhen Yang
- Drug Clinical Trial Center, Peking University Third Hospital, Peking University, Beijing 100191, China
- Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing 100191, China
| | - Xianrong Qi
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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27
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Clothier GKK, Guimarães TR, Thompson SW, Rho JY, Perrier S, Moad G, Zetterlund PB. Multiblock copolymer synthesis via RAFT emulsion polymerization. Chem Soc Rev 2023; 52:3438-3469. [PMID: 37093560 DOI: 10.1039/d2cs00115b] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
A multiblock copolymer is a polymer of a specific structure that consists of multiple covalently linked segments, each comprising a different monomer type. The control of the monomer sequence has often been described as the "holy grail" of synthetic polymer chemistry, with the ultimate goal being synthetic access to polymers of a "perfect" structure, where each monomeric building block is placed at a desired position along the polymer chain. Given that polymer properties are intimately linked to the microstructure and monomer distribution along the constituent chains, it goes without saying that there exist seemingly endless opportunities in terms of fine-tuning the properties of such materials by careful consideration of the length of each block, the number and order of blocks, and the inclusion of monomers with specific functional groups. The area of multiblock copolymer synthesis remains relatively unexplored, in particular with regard to structure-property relationships, and there are currently significant opportunities for the design and synthesis of advanced materials. The present review focuses on the synthesis of multiblock copolymers via reversible addition-fragmentation chain transfer (RAFT) polymerization implemented as aqueous emulsion polymerization. RAFT emulsion polymerization offers intriguing opportunities not only for the advanced synthesis of multiblock copolymers, but also provides access to polymeric nanoparticles of specific morphologies. Precise multiblock copolymer synthesis coupled with self-assembly offers material morphology control on length scales ranging from a few nanometers to a micrometer. It is imperative that polymer chemists interact with physicists and material scientists to maximize the impact of these materials of the future.
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Affiliation(s)
- Glenn K K Clothier
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia.
| | - Thiago R Guimarães
- MACROARC, Queensland University of Technology, Brisbane City, QLD 4000, Australia
| | - Steven W Thompson
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia.
| | - Julia Y Rho
- Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK
| | - Sébastien Perrier
- Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
- Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Graeme Moad
- CSIRO Manufacturing, Bag 10, Clayton South, VIC 3169, Australia
| | - Per B Zetterlund
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia.
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28
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Wikantyasning ER, Da’i M, Cholisoh Z, Kalsum U. 3-Aminophenylboronic Acid Conjugation on Responsive Polymer and Gold Nanoparticles for Qualitative Bacterial Detection. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2023; 15:81-87. [PMID: 37469647 PMCID: PMC10353662 DOI: 10.4103/jpbs.jpbs_646_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 03/07/2023] [Accepted: 04/08/2023] [Indexed: 07/21/2023] Open
Abstract
Background Because of their sensitive and selective responses to a wide variety of analytes, colorimetric sensors have gained widespread acceptance in recent years. Gold nanoparticles (AuNPs) are widely employed in visual sensor strategies due to their high stability and ease of use. Combining AuNPs with a responsive polymer can result in distinct surface plasmon resonance (SPR) changes that can be utilized as colorimetric biosensors. Objectives The purpose of this research is to develop a colorimetric-based sensor through the utilization of the optical properties of gold nanoparticles (AuNPs) crosslinked with pH-responsive polymers poly (acrylic acid) (PAA) conjugated to 3-aminophenyl boronic acid (APBA). Methods The polymer (PAA) was synthesized via RAFT polymerization. The inversed Turkevic method was used to produce AuNPs, which were subsequently used in a self-assembly process using poly (acrylic acid)-aminophenyl boronic acid (PAA-APBA) to create the self-assembled AuNPs-APBA-PAA. The particle size, zeta potential, and reversibility of the polymer-modified gold nanoparticles were determined using a transmission electron microscope (TEM), a particle size analyzer (PSA), and an Ultraviolet-Visible spectrophotometer (UV-Vis spectrophotometer). Visual, UV-Vis spectrophotometer and TEM observations confirmed the system's ability to identify bacteria. Statistical analysis was performed using a one-way analysis of variance using Excel software. Results Using UV-Vis spectrophotometry, the particle size of AuNPs was determined to be 25.7 nm, and the maximum absorbance occurred at 530 nm. AuNPs PAA APBA colloid exhibited an absorbance maximum of 532 nm, a zeta potential of -41.53, and a pH transition point between 4 and 5. At E. coli concentrations of 4.5 x 107 CFU/mL, the color of the system sensors changed from red to blue after 15 hours of incubation, whereas at S. aureus concentrations of 1.2 x 109 CFU/mL, the color changed to purple immediately after mixing. The TEM confirmed that the detection mechanism is based on the boronate-polyol bonding of saccharides on the outer membranes of Escherichia coli and Staphylococcus aureus. Conclusions The use of APBA in conjunction with pH-responsive PAA polymers containing AuNPs to detect E. coli and S. aureus bacteria induces a maximum wavelength transition, followed by a color change from red to blue. By the process of de-swelling of the responsive polymer, which induces the aggregation of the AuNPs, the established sensor system is able to alter the color. The conjugated polymer and gold nanoparticle-based sensor system demonstrated a promising method for bacterial detection.
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Affiliation(s)
| | - Muhammad Da’i
- Faculty of Pharmacy, Universitas Muhammadiyah Surakarta, Jl. A. Yani 157, Sukoharjo, Indonesia
| | - Zakky Cholisoh
- Faculty of Pharmacy, Universitas Muhammadiyah Surakarta, Jl. A. Yani 157, Sukoharjo, Indonesia
| | - Ummi Kalsum
- Study Program of Pharmacy, STIKES Telogorejo, Jl. Yos Sudarso, Semarang, Jawa Tengah, Indonesia
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29
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Bastakoti BP, Bhattarai N, Ashie MD, Tettey F, Yusa SI, Nakashima K. Single-Micelle-Templated Synthesis of Hollow Barium Carbonate Nanoparticle for Drug Delivery. Polymers (Basel) 2023; 15:polym15071739. [PMID: 37050353 PMCID: PMC10096637 DOI: 10.3390/polym15071739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/17/2023] [Accepted: 03/29/2023] [Indexed: 04/03/2023] Open
Abstract
A laboratory-synthesized triblock copolymer poly(ethylene oxide-b-acrylic acid-b-styrene) (PEG-PAA-PS) was used as a template to synthesize hollow BaCO3 nanoparticles (BC-NPs). The triblock copolymer was synthesized using reversible addition–fragmentation chain transfer radical polymerization. The triblock copolymer has a molecular weight of 1.88 × 104 g/mol. Transmission electron microscopy measurements confirm the formation of spherical micelles with a PEG corona, PAA shell, and PS core in an aqueous solution. Furthermore, the dynamic light scattering experiment revealed the electrostatic interaction of Ba2+ ions with an anionic poly(acrylic acid) block of the micelles. The controlled precipitation of BaCO3 around spherical polymeric micelles followed by calcination allows for the synthesis of hollow BC-NPs with cavity diameters of 15 nm and a shell thickness of 5 nm. The encapsulation and release of methotrexate from hollow BC-NPs at pH 7.4 was studied. The cell viability experiments indicate the possibility of BC-NPs maintaining biocompatibility for a prolonged time.
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30
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Kim P, Lee IS, Kim JY, Lee MJ, Choi GJ. Amorphous solid dispersions of tegoprazan and three different polymers: In vitro/in vivo evaluation of physicochemical properties. KOREAN J CHEM ENG 2023. [DOI: 10.1007/s11814-022-1280-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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31
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Muñoz-Bartual M, Herrero-Martínez JM, Esteve-Turrillas FA. Development of paper-immobilized molecularly imprinted polymers by laser pointer activation for methamphetamine extraction with analysis by ion mobility spectrometry. J Chromatogr A 2023; 1692:463852. [PMID: 36774915 DOI: 10.1016/j.chroma.2023.463852] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/03/2023] [Accepted: 02/03/2023] [Indexed: 02/07/2023]
Abstract
A fast, simple, cheap, and versatile strategy has been proposed for the synthesis of paper-immobilized molecularly imprinted polymers (MIPs) by photoactivated bulk polymerization over a piece of nitrocellulose using a 405 nm laser pointer. Polymerization was carried out using a mixture of methacrylic acid and ethylene glycol dimethacrylate, using methamphetamine as template molecule and bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide as radical initiator. After investigation of different polymerization parameters, the following experimental conditions were found to give best results: size of nitrocellulose strip (13.5 × 4.0 × 0.8 mm), type of porogen (acetonitrile), polymerization mixture volume (75 µL), and irradiation times (10 min). Experimental conditions (such as sample pH, extraction and desorption time, and type and volume of desorption solvent) were also adjusted for the extraction of methamphetamine using the proposed paper-MIP. Methamphetamine determination was carried out by ion mobility spectrometry providing a limit of detection of 14 µg L-1 and quantitative recoveries from 81 to 95% using spiked urine and oral fluid samples. The proposed paper-immobilized MIP device allows a simple and selective sample extraction procedure for the determination of methamphetamine in oral fluids and urine with a high portability, minimal solvent consumption, and reduced costs compared to other conventional approaches.
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Affiliation(s)
- M Muñoz-Bartual
- Department of Analytical Chemistry, University of Valencia, 50th Dr. Moliner St., 46100 Burjassot, Spain
| | - J M Herrero-Martínez
- Department of Analytical Chemistry, University of Valencia, 50th Dr. Moliner St., 46100 Burjassot, Spain
| | - F A Esteve-Turrillas
- Department of Analytical Chemistry, University of Valencia, 50th Dr. Moliner St., 46100 Burjassot, Spain.
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32
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Thambi T, Jung JM, Lee DS. Recent strategies to develop pH-sensitive injectable hydrogels. Biomater Sci 2023; 11:1948-1961. [PMID: 36723174 DOI: 10.1039/d2bm01519f] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
"Smart" biomaterials that are responsive to pathological abnormalities are an appealing class of therapeutic platforms for the development of personalized medications. The development of such therapeutic platforms requires novel techniques that could precisely deliver therapeutic agents to the diseased tissues, resulting in enhanced therapeutic effects without harming normal tissues. Among various therapeutic platforms, injectable pH-responsive biomaterials are promising biomaterials that respond to the change in environmental pH. Aqueous solutions of injectable pH-responsive biomaterials exhibit a phase transition from sol-to-gel in response to environmental pH changes. The injectable pH-responsive hydrogel depot can provide spatially and temporally controlled release of various bioactive agents including chemotherapeutic drugs, peptides, and proteins. Therapeutic agents are imbibed into hydrogels by simple mixing without the use of toxic solvents and used for long-term storage or in situ injection using a syringe or catheter that could form a stable gel and acts as a controlled release depot in a minimally invasive manner. Tunable physicochemical properties of the hydrogels, such as biodegradability, ability to interact with drugs and mechanical properties, can control the release of the therapeutic agent. This review highlights the advances in the design and development of biodegradable and in situ forming injectable pH-responsive biomaterials that respond to the physiological conditions. Special attention has been paid to the development of amphoteric pH-responsive biomaterials and their utilization in biomedical applications. We also highlight key challenges and future directions of pH-responsive biomaterials in clinical translation.
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Affiliation(s)
- Thavasyappan Thambi
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
| | - Jae Min Jung
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
| | - Doo Sung Lee
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
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33
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Ghaffarlou M, Sütekin SD, Karacaoğlu E, Karahisar Turan S, İnci ÖG, Güven O, Barsbay M. Folic acid-modified biocompatible Pullulan/poly(acrylic acid) nanogels for targeted delivery to MCF-7 cancer cells. Eur J Pharm Biopharm 2023; 184:189-201. [PMID: 36764499 DOI: 10.1016/j.ejpb.2023.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/22/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023]
Abstract
We prepared a novel nanogel consisting of poly(acrylic acid) (PAA) and pullulan (Pull) via a facile and green irradiation protocol. Synthesized nanogels were modified with bovine serum albumin (BSA) and folic acid (FA) and then loaded with doxorubicin (DOX) to obtain a delivery system with tumor-specific targeting ability and enhanced biocompatibility. In-vitro DOX release was investigated at different pH values, and it was found that DOX release was higher in acidic media, which is an advantage for the internalization of nanoparticles in acidic tumor environment. MTT assay and DAPI staining were performed to evaluate the effects of nanogels on L929 and MCF-7 cells. Based on the results of in vitro studies, DOX-loaded nanogels were found to be effective on cancer cells, while the neat ones were nondestructive in both lines. Overall, we envision that the biocompatible and tumor-specific nanogels could be a promising safe drug carrier system for cancer therapy.
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Affiliation(s)
| | - S Duygu Sütekin
- Hacettepe University, Department of Chemistry, Beytepe, 06800 Ankara, Turkey
| | - Elif Karacaoğlu
- Hacettepe University, Department of Biology, Beytepe, 06800 Ankara, Turkey
| | | | - Özlem Gülüm İnci
- Hacettepe University, Department of Chemistry, Beytepe, 06800 Ankara, Turkey
| | - Olgun Güven
- Hacettepe University, Department of Chemistry, Beytepe, 06800 Ankara, Turkey
| | - Murat Barsbay
- Hacettepe University, Department of Chemistry, Beytepe, 06800 Ankara, Turkey.
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34
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Badiei YM, Annon O, Maldonado C, Delgado E, Nguyen C, Rivera C, Li C, Ortega AF. Single‐Site Molecular Ruthenium(II) Water‐Oxidation Catalysts Grafted into a Polymer‐Modified Surface for Improved Stability and Efficiency. ChemElectroChem 2023. [DOI: 10.1002/celc.202300028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Affiliation(s)
- Yosra M. Badiei
- Department of Chemistry Saint Peter's University 07306 Jersey City New Jersey USA
| | - Oshane Annon
- Department of Chemistry Saint Peter's University 07306 Jersey City New Jersey USA
| | - Christina Maldonado
- Department of Chemistry Saint Peter's University 07306 Jersey City New Jersey USA
| | - Emily Delgado
- Department of Chemistry Saint Peter's University 07306 Jersey City New Jersey USA
| | - Caroline Nguyen
- Department of Chemistry Saint Peter's University 07306 Jersey City New Jersey USA
| | - Christina Rivera
- Department of Chemistry Saint Peter's University 07306 Jersey City New Jersey USA
| | - Clive Li
- Department of STEM Hudson County Community College 07306 Jersey City NJ USA
| | - Abril Flores Ortega
- Department of Chemistry Saint Peter's University 07306 Jersey City New Jersey USA
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35
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Kunche L, Natarajan U. Conformations and Solvation of Synthetic Polymers in Water by Generalized Born Implicit-Solvent Molecular Dynamics Simulations: Stereoisomers of Poly(acrylic acid) and Poly(methacrylic acid). J Phys Chem B 2023; 127:1244-1253. [PMID: 36705523 DOI: 10.1021/acs.jpcb.2c06658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We present the GB-OBC model as an approach for implicit-solvent MD simulations of a synthetic macromolecule in water. The model is tested and found to be successful in reproducing the chain dimensions and predicting the free energy of solvation of carboxylic acid vinyl polymers. The influence of stereochemistry and the hydrophobic nature of the polymer was investigated as a function of chain length (20 < N < 600) for poly(acrylic acid) (PAA) and poly(methacrylic acid) (PMA). The dimensionless parameters of the GB-OBC model were parameterized to be applicable to PAA and PMA. Scaling relations for chain dimensions obtained using implicit-solvent MD simulations in this study are in good agreement with those from experiments, theory of solvated chains in good solvents, and all-atom MD simulations in explicit water. Results show that ⟨Rg2⟩/NL2 is greater for the atactic chain as compared to the isotactic chain, for PAA as well as PMA. ⟨Rg2⟩/NL2 values of chains attain constancy in water for N = 200, with the values being greater for PMA. The PMA chain is conformationally more perturbed than the PAA chain, for both isotactic and atactic stereochemistry. The solvation free energy ΔGhyd of PAA and PMA in water is negative for all chain lengths (N = 20-600) and becomes more favorable with an increase in molecular weight. The ΔGhyd values for isotactic and atactic chains are identical at lower values of N but differ slightly for N > 300. Irrespective of the hydrophobic nature of the polymer, the atactic chain is thermodynamically more soluble in water as compared to the isotactic chain. The isotactic chain is less hydrophilic as compared to the atactic chain due to the closer proximity of the COOH groups along the backbone. This implicit solvent method is an effective way to accurately simulate the configurational properties and solvation of synthetic polymers in water.
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Affiliation(s)
- Lakshmikumar Kunche
- Macromolecular Modeling and Simulation Lab, Department of Chemical Engineering, Indian Institute of Technology (IIT) Madras, Chennai600036, India
| | - Upendra Natarajan
- Macromolecular Modeling and Simulation Lab, Department of Chemical Engineering, Indian Institute of Technology (IIT) Madras, Chennai600036, India
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Ellis CM, Yuan D, Mózes FE, Miller JJ, Davis JJ. Reversible pH-responsive MRI contrast with paramagnetic polymer micelles. Chem Commun (Camb) 2023; 59:1605-1608. [PMID: 36655730 DOI: 10.1039/d2cc06255k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Paramagnetically-doped polymer micelles, containing an ionizable poly(acrylic acid) (PAA) block, support high-contrast MR imaging at clinically relevant field strengths in a manner that is strongly pH responsive. A reversible switch in polymer strand charge specifically has a direct impact on local rigidity, and rotational correlation time characteristics, of the integrated Gd-chelate, driving a ∼50% amplitude switch in positive contrast.
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Affiliation(s)
- Connor M Ellis
- Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QZ, UK.
| | - Daohe Yuan
- Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QZ, UK.
| | - Ferenc E Mózes
- Oxford Centre for Clinical Magnetic Resonance Research, Radcliffe Department of Medicine, University of Oxford, Level 0, John Radcliffe Hospital, Oxford, OX3 9DU, UK
| | - Jack J Miller
- Oxford Centre for Clinical Magnetic Resonance Research, Radcliffe Department of Medicine, University of Oxford, Level 0, John Radcliffe Hospital, Oxford, OX3 9DU, UK.,The MR Research Centre, Aarhus University, Aarhus 8200, Denmark.,Department of Physics, Clarendon Laboratory, Parks Road, Oxford, OX1 3PU, UK
| | - Jason J Davis
- Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QZ, UK.
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Synthesis and Characterization of Gd-Functionalized B 4C Nanoparticles for BNCT Applications. Life (Basel) 2023; 13:life13020429. [PMID: 36836786 PMCID: PMC9967186 DOI: 10.3390/life13020429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 01/23/2023] [Accepted: 01/26/2023] [Indexed: 02/05/2023] Open
Abstract
Inorganic nanoparticles of boron-rich compounds represent an attractive alternative to boron-containing molecules, such as boronophenylalanine or boranes, for BNCT applications. This work describes the synthesis and biological activity of multifunctional boron carbide nanoparticles stabilized with polyacrylic acid (PAA) and a gadolinium (Gd)-rich solid phase. A fluorophore (DiI) was included in the PAA functionalization, allowing the confocal microscopy imaging of the nanoparticles. Analysis of the interaction and activity of these fluorescent Gd-containing B4C nanoparticles (FGdBNPs) with cultured cells was appraised using an innovative correlative microscopy approach combining intracellular neutron autoradiography, confocal, and SEM imaging. This new approach allows visualizing the cells, the FGdBNP, and the events deriving from the nuclear process in the same image. Quantification of 10B by neutron autoradiography in cells treated with FGdBNPs confirmed a significant accumulation of NPs with low levels of cellular toxicity. These results suggest that these NPs might represent a valuable tool for achieving a high boron concentration in tumoral cells.
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Ghosh N, Kundu M, Ghosh S, Das AK, De S, Das J, Sil PC. pH-responsive and targeted delivery of chrysin via folic acid-functionalized mesoporous silica nanocarrier for breast cancer therapy. Int J Pharm 2023; 631:122555. [PMID: 36586636 DOI: 10.1016/j.ijpharm.2022.122555] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 12/21/2022] [Accepted: 12/24/2022] [Indexed: 12/29/2022]
Abstract
Cancer is a disease of global importance. In order to mitigate conventional chemotherapy-related side effects, phytochemicals with inherent anticancer efficacy have been opted. However, the use of nanotechnology is essential to enhance the bioavailability and therapeutic efficacy of these phytochemicals. Herein, we have formulated folic acid conjugated polyacrylic acid capped mesoporous silica nanoparticles (∼47.6 nm in diameter) for pH-dependent targeted delivery of chrysin to breast cancer (MCF-7) cells. Chrysin loaded mesoporous silica nanoparticles (Chr- mSiO2@PAA/FA) have been noted to induce apoptosis in MCF-7 cells through oxidative insult and mitochondrial dysfunction with subsequent G1 arrest. Further, in tumor bearing mice, intravenous incorporation of Chr-mSiO2@PAA/FA has been noticed to enhance the anti-neoplastic effects of chrysin via tumor site-specific accumulation. Enhanced cytotoxicity of chrysin contributed towards in vivo tumor regression, restoration of normalized tissue architecture and maintenance of healthy body weight. Besides, no serious systemic toxicity was manifested in response to Chr-mSiO2@PAA/FA administration in vivo. Thus, the study evokes about the anticancer potentiality of chrysin and its increased therapeutic activity via incorporation into folic acid conjugated mesoporous silica nanoparticles, which may hold greater impact in field of future biomedical research.
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Affiliation(s)
- Noyel Ghosh
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Mousumi Kundu
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Sumit Ghosh
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Abhishek Kumar Das
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Samhita De
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India
| | - Joydeep Das
- Department of Chemistry, Physical Sciences, Mizoram University, Aizawl 796004, Mizoram, India.
| | - Parames C Sil
- Division of Molecular Medicine, Bose Institute, P-1/12, CIT Scheme VII M, Kolkata 700054, India.
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Regu VR, Swain RP, Subudhi BB. Drug Delivery for Ocular Allergy: Current Formulation Design Strategies and Future Perspectives. Curr Pharm Des 2023; 29:2626-2639. [PMID: 37936454 DOI: 10.2174/0113816128275375231030115828] [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: 08/14/2023] [Revised: 09/09/2023] [Accepted: 09/21/2023] [Indexed: 11/09/2023]
Abstract
The incidences of ocular allergy have been growing with the increase in pollution. Because of challenges in new drug development, there have been efforts to maximize the efficacy of existing drugs through drug delivery approaches. The effectiveness of drugs in ophthalmic conditions is primarily determined by permeability across the barrier, corneal retention, and sustained release. Thus, there have been widespread efforts to optimize these parameters to enhance efficacy through novel formulations. This review aims to analyze the approaches to drug delivery systems to encourage further research to optimize effectiveness. With this objective, research on drug delivery aspects of anti-allergy therapeutics was included and analyzed based on formulation/drug delivery technique, Food and Drug Administration approval limits, residence time, compatibility, pre-clinical efficacy, and potential for translational application. Conventional eye drops have concerns such as poor residence time and ocular bioavailability. The novel formulations have the potential to improve residence and bioavailability. However, the use of preservatives and the lack of regulatory approval for polymers limit the translational application. The review may assist readers in identifying novel drug delivery strategies and their limitations for the development of effective ophthalmic formulations for the treatment of ocular allergy.
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Affiliation(s)
- Varaprasada Rao Regu
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be) University, Bhubaneswar, Odisha, India
| | - Ranjit Prasad Swain
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be) University, Bhubaneswar, Odisha, India
| | - Bharat Bhusan Subudhi
- Drug Development and Analysis Laboratory, School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be) University, Bhubaneswar, Odisha, India
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Gineste S, Mingotaud C. Double-hydrophilic block copolymer-metal ion associations: Structures, properties and applications. Adv Colloid Interface Sci 2023; 311:102808. [PMID: 36442323 DOI: 10.1016/j.cis.2022.102808] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/17/2022] [Accepted: 10/30/2022] [Indexed: 11/06/2022]
Abstract
Hybrid polyionic complexes (HPICs), constructed from double-hydrophilic block copolymers and metal ions, have been largely developed with increasing interest in the past decade in the fields of catalysis, materials science and biological applications. The chemical natures of both blocks are very versatile, but one block should be able to interact with ions, and the second one should be neutral. Many metals have been used to form HPICs, which have, in their simplest architectural form, a core-shell structure of a few tens of nanometers in radius with an external shell made of the neutral block of the copolymer. In this review, we focus our discussion on the stability, shape, size and inner structure of these hybrid micelles. We then describe the most recent applications of HPICs, as reported in the literature, and point out the current challenges, missing structural information and future perspectives for this class of organized structures.
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Affiliation(s)
- Stéphane Gineste
- Laboratoire des IMRCP, CNRS UMR 5623, University of Toulouse, Université Toulouse III - Paul Sabatier, 118, route de Narbonne, 31062 Toulouse Cedex 9, France
| | - Christophe Mingotaud
- Laboratoire des IMRCP, CNRS UMR 5623, University of Toulouse, Université Toulouse III - Paul Sabatier, 118, route de Narbonne, 31062 Toulouse Cedex 9, France.
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Cocamidopropyl betaine can behave as a cationic surfactant and electrostatically associate with polyacids of high molecular weight. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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42
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Morozova YE, Myaldzina KR, Antipin IS. Structural Rearrangements in Macrocyclic Amphiphile–Poly(acrylic acid) Associates. COLLOID JOURNAL 2022. [DOI: 10.1134/s1061933x22600282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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43
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Chiang H, Iverson ET, Schmieg K, Stevens DL, Grunlan JC. Highly moisture resistant super gas barrier polyelectrolyte complex thin film. J Appl Polym Sci 2022. [DOI: 10.1002/app.53473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Hsu‐Cheng Chiang
- Department of Chemistry Texas A&M University College Station Texas USA
| | - Ethan T. Iverson
- Department of Chemistry Texas A&M University College Station Texas USA
| | - Kendra Schmieg
- Department of Chemical Engineering Texas A&M University College Station Texas USA
| | - Daniel L. Stevens
- Department of Chemistry Texas A&M University College Station Texas USA
| | - Jaime C. Grunlan
- Department of Chemistry Texas A&M University College Station Texas USA
- Department of Materials Science & Engineering, and Mechanical Engineering Texas A&M University College Station Texas USA
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Mills R, Baldridge KC, Bernard M, Bhattacharyya D. Recent Advances in Responsive Membrane Functionalization Approaches and Applications. SEP SCI TECHNOL 2022; 58:1202-1236. [PMID: 37063489 PMCID: PMC10103845 DOI: 10.1080/01496395.2022.2145222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 10/28/2022] [Indexed: 11/25/2022]
Abstract
In recent years, significant advances have been made in the field of functionalized membranes. With the functionalization using various materials, such as polymers and enzymes, membranes can exhibit property changes in response to an environmental stimulation, such as heat, light, ionic strength, or pH. The resulting responsive nature allows for an increased breadth of membrane uses, due to the developed functionalization properties, such as smart-gating filtration for size-selective water contaminant removal, self-cleaning antifouling surfaces, increased scalability options, and highly sensitive molecular detection. In this review, new advances in both fabrication and applications of functionalized membranes are reported and summarized, including temperature-responsive, pH-responsive, light-responsive, enzyme-functionalized, and two-dimensional material-functionalized membranes. Specific emphasis was given to the most recent technological improvements, current limitations, advances in characterization techniques, and future directions for the field of functionalized membranes.
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Affiliation(s)
- Rollie Mills
- Department of Chemical and Materials Engineering, University of Kentucky; Lexington, KY 40506, USA
| | - Kevin C. Baldridge
- Department of Chemical and Materials Engineering, University of Kentucky; Lexington, KY 40506, USA
| | - Matthew Bernard
- Department of Chemical and Materials Engineering, University of Kentucky; Lexington, KY 40506, USA
| | - Dibakar Bhattacharyya
- Department of Chemical and Materials Engineering, University of Kentucky; Lexington, KY 40506, USA
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The inhibitory effects of synthetic polyacrylic acid and humic substances on the initial stage of colloidal flocculation induced by polycationic flocculant with low charge density. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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46
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Batista A, Bellettini IC, Brondani PB. Pain and nociception bioinspiration for the development of a micellar-based screening test for antinociceptive drugs. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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47
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Kurapati R, Natarajan U. Tacticity and Ionization Effects on Adsorption Behavior of Poly(acrylic acid) and Poly(methacrylic acid) at the CCl 4–H 2O Interface Revealed by MD Simulations. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Raviteja Kurapati
- Macromolecular Modeling and Simulation Laboratory, Department of Chemical Engineering, Indian Institute of Technology (IIT) Madras, Chennai600036, India
| | - Upendra Natarajan
- Macromolecular Modeling and Simulation Laboratory, Department of Chemical Engineering, Indian Institute of Technology (IIT) Madras, Chennai600036, India
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Xie Z, Li K, Tang W, Yang S, Sun Y. The suspending appearance of poly(acrylic acid)‐based rheology modifier in high‐content surfactant: The effect of polymer structure and molecular weight on the rheological properties of the complex systems. J Appl Polym Sci 2022. [DOI: 10.1002/app.53236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhengyun Xie
- Faculty of Chemical Engineering Kunming University of Science and Technology Kunming China
| | - Kai Li
- Faculty of Chemical Engineering Kunming University of Science and Technology Kunming China
| | - Wei Tang
- Faculty of Chemical Engineering Kunming University of Science and Technology Kunming China
| | - Shulan Yang
- Faculty of Chemical Engineering Kunming University of Science and Technology Kunming China
| | - Yanlin Sun
- Faculty of Chemical Engineering Kunming University of Science and Technology Kunming China
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Moradi N, Kaviani S, Soufizomorrod M, Hosseinzadeh S, Soleimani M. Preparation of poly(acrylic acid)/tricalcium phosphate nanoparticles scaffold: Characterization and releasing UC-MSCs derived exosomes for bone differentiation. BIOIMPACTS : BI 2022; 13:425-438. [PMID: 37736343 PMCID: PMC10509736 DOI: 10.34172/bi.2022.24142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/25/2021] [Accepted: 01/01/2022] [Indexed: 09/23/2023]
Abstract
Introduction This study focused on preparing a multiscale three-dimensional (3D) scaffold using tricalcium phosphate nanoparticles (triCaPNPs) in a substrate of poly(acrylic acid) (PAA) polymer for controlled release of exosomes in bone tissue engineering. Methods A scaffold was fabricated with a material mixture containing acrylic acid (AA) monomer, N,N'-methylenebisacrylamide (MBAA), ammonium persulfate (APS), sodium bicarbonate (SBC), and triCaPNPs called composite scaffold (PAA/triCaPNPs) via cross-linking and freeze-drying methods. The synthesis process was easy and without complex multi-steps. Through mimicking the hybrid (organic-inorganic) structure of the bone matrix, we here chose triCaPNPs for incorporation into the PAA polymer. After assessing the physicochemical properties of the scaffold, the interaction of the scaffold with human umbilical cord mesenchymal stem cells (UC-MSCs) such as attachment, proliferation, and differentiation to osteoblast cells was evaluated. In addition, we used DiI-labeled exosomes to verify the exosome entrapment and release from the scaffold. Results The polymerization reaction of 3D scaffold was successful. Based on results of physicochemical properties, the presence of nanoparticles in the composite scaffold enhanced the mechanical stiffness, boosted the porosity with a larger pore size range, and offered better hydrophilicity, all of which would contribute to greater cell penetration, proliferation, and then better bone differentiation. In addition, our results indicated that our scaffold could take up and release exosomes, where the exosomes released from it could significantly enhance the osteogenic commitment of UC-MSCs. Conclusion The current research is the first study fabricating a multiscale scaffold using triCaPNPs in the substrate of PPA polymer using a cross-linker and freeze-drying process. This scaffold could mimic the nanoscale structure and chemical combination of native bone minerals. In addition, our results suggest that the PAA/triCaPNPs scaffold could be beneficial to achieve controlled exosome release for exosome-based therapy in bone tissue engineering.
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Affiliation(s)
- Nahid Moradi
- Hematology and Cell Therapy Department, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Saeid Kaviani
- Hematology and Cell Therapy Department, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mina Soufizomorrod
- Hematology and Cell Therapy Department, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Simzar Hosseinzadeh
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoud Soleimani
- Hematology and Cell Therapy Department, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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50
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Wallace M, Holroyd J, Kuraite A, Hussain H. Does It Bind? A Method to Determine the Affinity of Calcium and Magnesium Ions for Polymers Using 1H NMR Spectroscopy. Anal Chem 2022; 94:10976-10983. [PMID: 35877111 PMCID: PMC9366736 DOI: 10.1021/acs.analchem.2c01166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The binding of calcium and magnesium ions (M2+) by polymers and other macromolecules in aqueous solution is ubiquitous across chemistry and biology. At present, it is difficult to assess the binding affinity of macromolecules for M2+ without recourse to potentiometric titrations and/or isothermal titration calorimetry. Both of these techniques require specialized equipment, and the measurements can be difficult to perform and interpret. Here, we present a new method based on 1H NMR chemical shift imaging (CSI) that enables the binding affinity of polymers to be assessed in a single experiment on standard high-field NMR equipment. In our method, M2+ acetate salt is weighed into a standard 5 mm NMR tube and a solution of polymer layered on top. Dissolution and diffusion of the salt carry the M2+ and acetate ions up through the solution. The concentrations of acetate, [Ac], and free (unbound) M2+, [M2+]f, are measured at different positions along the sample by CSI. Binding of M2+ to the polymer reduces [M2+]f and hinders the upward diffusion of M2+. A discrepancy is thus observed between [Ac] and [M2+]f from which the binding affinity of the polymer can be assessed. For systems which form insoluble complexes with M2+, such as sodium polyacrylate or carboxylate-functionalized nanocellulose (CNC), we can determine the concentration of M2+ at which the polymer will precipitate. We can also predict [M2+]f when a solution of polymer is mixed homogeneously with M2+ salt. We assess the binding properties of sodium polyacrylate, alginate, polystyrene sulfonate, CNC, polyethyleneimine, ethylenediamenetetraacetic acid, and maleate.
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Affiliation(s)
- Matthew Wallace
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, U.K
| | - Joshua Holroyd
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, U.K
| | - Agne Kuraite
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, U.K
| | - Haider Hussain
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, U.K
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