1
|
Zhu Y, Hou J, Gray DM, McDonald TO, Dumanli AG. Cation-induced morphological transitions and aggregation of thermoresponsive PNIPAM nanogels. Heliyon 2024; 10:e32184. [PMID: 39021897 PMCID: PMC11252870 DOI: 10.1016/j.heliyon.2024.e32184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 05/09/2024] [Accepted: 05/29/2024] [Indexed: 07/20/2024] Open
Abstract
Poly(N-isopropylacrylamide) (PNIPAM) nanogels are promising responsive colloidal particles that can be used in pharmaceutical applications as drug carriers. This work investigates the temperature-dependent morphological changes and agglomeration of PNIPAM nanogels in the presence of mono- and multi-valent cationic electrolytes. We described the deswelling, flocculation, thermal reversibility behaviour and aggregated morphology of PNIPAM nanogels over a range of electrolyte concentrations and temperatures revealing the critical transition points from stable suspension to spontaneous agglomeration. We demonstrated that the flocculating ability and the rate of aggregate formation follow the order of deswelling behaviour. Transmission electron microscopy and atomic force microscopy analysis revealed the presence of a shell-like layer with varying density in the multivalent electrolyte solutions when compared to those in aqueous medium. We identified a concentration threshold of the thermally induced reversible aggregation/dispersion for the PNIPAM nanogels in the presence of Na+ and K+ ions at 10 mM, for Mg2+ and Ca2+ ions at 1 mM and for Al3+ ions at 0.1 mM concentrations. Such concentration thresholds indicated the effective destabilization of the electrolyte system with multivalency following the Schulze-Hardy rule. Our findings were supported by applying a Debye screening model that accounts for the shielding effect of multivalent cationic electrolytes on these nanogel systems. Our experiments and the models confirmed the compression of the electric double layer as the valency and ionic strength increased, except for Al3+ at higher concentrations which seemed to disrupt the electrical double layer and cause reversal of zeta potential. Our work highlights the significant impact the presence of multivalent cations can impose on the stability and morphology of nanogels, and this understanding will help in designing responsive nanogel systems based on PNIPAM nanogels.
Collapse
Affiliation(s)
- Yuchen Zhu
- Department of Materials, The University of Manchester, Oxford Rd, Manchester, M13 9PL, UK
- Henry Royce Institute, The University of Manchester, Oxford Rd, Manchester, M13 9PL, UK
| | - Jiaxin Hou
- Department of Materials, The University of Manchester, Oxford Rd, Manchester, M13 9PL, UK
- Henry Royce Institute, The University of Manchester, Oxford Rd, Manchester, M13 9PL, UK
| | - Dominic M. Gray
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK
| | - Tom O. McDonald
- Department of Materials, The University of Manchester, Oxford Rd, Manchester, M13 9PL, UK
- Henry Royce Institute, The University of Manchester, Oxford Rd, Manchester, M13 9PL, UK
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK
| | - Ahu Gümrah Dumanli
- Department of Materials, The University of Manchester, Oxford Rd, Manchester, M13 9PL, UK
- Henry Royce Institute, The University of Manchester, Oxford Rd, Manchester, M13 9PL, UK
| |
Collapse
|
2
|
He H, Wu W, Dong Q, An F, Huang Q, Song H. Effects of nanocellulose combined with high pressure on the textural, structural, and gel properties of Nemipterus virgatus sausage. FOOD SCI TECHNOL INT 2023:10820132231183027. [PMID: 37321629 DOI: 10.1177/10820132231183027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
This study aimed to improve the gel quality of golden threadfin bream (Nemipterus virgatus) sausage by adding sugarcane nanocellulose (SNC) and using high pressure combined with a two-stage heat treatment. The gel strength, textural properties, protein secondary structure, water states, and microstructure were analyzed and compared. The results indicated that the heat treatment was beneficial to stabilizing the protein gel structure, increasing the gel strength and textural quality, and reducing the cooking loss. High-pressure treatment resulted in a decrease of α-helix and an increase of β-sheet in the protein, forming a dense gel structure, which enhanced the gel strength and the percentage of bound water. The superior hydrophilicity of nanocellulose and its cross-linking with protein increased the percentage of bound water in the gel, which improved the water-holding capacity and mechanical properties. Therefore, the best gel quality was obtained by adding nanocellulose and treating it with high pressure combined with two-stage heating.
Collapse
Affiliation(s)
- Hong He
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, P. R. China
- Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian, P. R. China
- Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fuzhou, Fujian, P. R. China
| | - Wanying Wu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, P. R. China
- Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian, P. R. China
- Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fuzhou, Fujian, P. R. China
| | - Qingfei Dong
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, P. R. China
- Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian, P. R. China
| | - Fengping An
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, P. R. China
- Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian, P. R. China
- Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fuzhou, Fujian, P. R. China
| | - Qun Huang
- School of Public Health, Guizhou Medical University, Guiyang, Guizhou, China
- Institute for Egg Science and Technology, School of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Hongbo Song
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, P. R. China
- Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian, P. R. China
- Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fuzhou, Fujian, P. R. China
| |
Collapse
|
3
|
Hu X, Zhang Z, Wu H, Yang S, Zhao W, Che L, Wang Y, Cao J, Li K, Qian Z. Progress in the application of 3D-printed sodium alginate-based hydrogel scaffolds in bone tissue repair. BIOMATERIALS ADVANCES 2023; 152:213501. [PMID: 37321007 DOI: 10.1016/j.bioadv.2023.213501] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 05/21/2023] [Accepted: 06/05/2023] [Indexed: 06/17/2023]
Abstract
In recent years, hydrogels have been widely used in the biomedical field as materials with excellent bionic structures and biological properties. Among them, the excellent comprehensive properties of natural polymer hydrogels represented by sodium alginate have attracted the great attention of researchers. At the same time, by physically blending sodium alginate with other materials, the problems of poor cell adhesion and mechanical properties of sodium alginate hydrogels were directly improved without chemical modification of sodium alginate. The composite blending of multiple materials can also improve the functionality of sodium alginate hydrogels, and the prepared composite hydrogel also has a larger application field. In addition, based on the adjustable viscosity of sodium alginate-based hydrogels, sodium alginate-based hydrogels can be loaded with cells to prepare biological ink, and the scaffold can be printed out by 3D printing technology for the repair of bone defects. This paper first summarizes the improvement of the properties of sodium alginate and other materials after physical blending. Then, it summarizes the application progress of sodium alginate-based hydrogel scaffolds for bone tissue repair based on 3D printing technology in recent years. Moreover, we provide relevant opinions and comments to provide a theoretical basis for follow-up research.
Collapse
Affiliation(s)
- Xulin Hu
- Clinical Medical College and Affiliated Hospital of Chengdu University, School of Mechanical Engineering of Chengdu University, Chengdu 610081, China; State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China
| | - Zhen Zhang
- Clinical Medical College and Affiliated Hospital of Chengdu University, School of Mechanical Engineering of Chengdu University, Chengdu 610081, China
| | - Haoming Wu
- Clinical Medical College and Affiliated Hospital of Chengdu University, School of Mechanical Engineering of Chengdu University, Chengdu 610081, China
| | - Shuhao Yang
- Clinical Medical College and Affiliated Hospital of Chengdu University, School of Mechanical Engineering of Chengdu University, Chengdu 610081, China
| | - Weiming Zhao
- Clinical Medical College and Affiliated Hospital of Chengdu University, School of Mechanical Engineering of Chengdu University, Chengdu 610081, China
| | - Lanyu Che
- Clinical Medical College and Affiliated Hospital of Chengdu University, School of Mechanical Engineering of Chengdu University, Chengdu 610081, China
| | - Yao Wang
- Clinical Medical College and Affiliated Hospital of Chengdu University, School of Mechanical Engineering of Chengdu University, Chengdu 610081, China
| | - Jianfei Cao
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu 610031, China
| | - Kainan Li
- Clinical Medical College and Affiliated Hospital of Chengdu University, School of Mechanical Engineering of Chengdu University, Chengdu 610081, China
| | - Zhiyong Qian
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China.
| |
Collapse
|
4
|
Bashir MH, Korany NS, Farag DBE, Abbass MMS, Ezzat BA, Hegazy RH, Dörfer CE, Fawzy El-Sayed KM. Polymeric Nanocomposite Hydrogel Scaffolds in Craniofacial Bone Regeneration: A Comprehensive Review. Biomolecules 2023; 13:biom13020205. [PMID: 36830575 PMCID: PMC9953024 DOI: 10.3390/biom13020205] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 01/22/2023] Open
Abstract
Nanocomposite biomaterials combine a biopolymeric matrix structure with nanoscale fillers. These bioactive and easily resorbable nanocomposites have been broadly divided into three groups, namely natural, synthetic or composite, based on the polymeric origin. Preparing such nanocomposite structures in the form of hydrogels can create a three-dimensional natural hydrophilic atmosphere pivotal for cell survival and new tissue formation. Thus, hydrogel-based cell distribution and drug administration have evolved as possible options for bone tissue engineering and regeneration. In this context, nanogels or nanohydrogels, created by cross-linking three-dimensional polymer networks, either physically or chemically, with high biocompatibility and mechanical properties were introduced as promising drug delivery systems. The present review highlights the potential of hydrogels and nanopolymers in the field of craniofacial tissue engineering and bone regeneration.
Collapse
Affiliation(s)
- Maha H. Bashir
- Oral Biology Department, Faculty of Dentistry, Cairo University, Cairo 11553, Egypt
| | - Nahed S. Korany
- Oral Biology Department, Faculty of Dentistry, Cairo University, Cairo 11553, Egypt
| | - Dina B. E. Farag
- Oral Biology Department, Faculty of Dentistry, Cairo University, Cairo 11553, Egypt
| | - Marwa M. S. Abbass
- Oral Biology Department, Faculty of Dentistry, Cairo University, Cairo 11553, Egypt
- Stem Cells and Tissue Engineering Research Group, Faculty of Dentistry, Cairo University, Cairo 11553, Egypt
| | - Bassant A. Ezzat
- Oral Biology Department, Faculty of Dentistry, Cairo University, Cairo 11553, Egypt
| | - Radwa H. Hegazy
- Oral Biology Department, Faculty of Dentistry, Cairo University, Cairo 11553, Egypt
| | - Christof E. Dörfer
- Clinic for Conservative Dentistry and Periodontology, School of Dental Medicine, Christian Albrechts University, 24105 Kiel, Germany
| | - Karim M. Fawzy El-Sayed
- Stem Cells and Tissue Engineering Research Group, Faculty of Dentistry, Cairo University, Cairo 11553, Egypt
- Clinic for Conservative Dentistry and Periodontology, School of Dental Medicine, Christian Albrechts University, 24105 Kiel, Germany
- Oral Medicine and Periodontology Department, Faculty of Dentistry, Cairo University, Cairo 11553, Egypt
- Correspondence: ; Tel.: +49-431-500-26210
| |
Collapse
|
5
|
Poly(2-oxazoline)s as Stimuli-Responsive Materials for Biomedical Applications: Recent Developments of Polish Scientists. Polymers (Basel) 2022; 14:polym14194176. [PMID: 36236124 PMCID: PMC9572872 DOI: 10.3390/polym14194176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/30/2022] [Accepted: 10/03/2022] [Indexed: 11/05/2022] Open
Abstract
Poly(2-oxazoline)s are the synthetic polymers that are the products of the cationic ring-opening polymerization (CROP) of 2-oxazoline monomers. Due to their beneficial properties, from which biocompatibility, stealth behavior, high functionalization possibilities, low dispersity, stability, nonionic character, and solubility in water and organic solvents should be noted, they have found many applications and gained enormous interest from scientists. Additionally, with high versatility attainable through copolymerization or through post-polymerization modifications, this class of polymeric systems has been widely used as a polymeric platform for novel biomedical applications. The chemistry of polymers significant expanded into biomedical applications, in which polymeric networks can be successfully used in pharmaceutical development for tissue engineering, gene therapies, and also drug delivery systems. On the other hand, there is also a need to create ‘smart’ polymer biomaterials, responsive to the specified factor, that will be sensitive to various environmental stimuli. The commonly used stimuli-responsive biomedical materials are based mostly on temperature-, light-, magnetic-, electric-, and pH-responsive systems. Thus, creating selective and responsive materials that allow personalized treatment is in the interest of the scientific world. This review article focuses on recent discoveries by Polish scientists working in the field of stimuli-responsive poly(2-oxazoline)s, and their work is compared and contrasted with results reported by other world-renowned specialists.
Collapse
|
6
|
Guzmán E, Martínez-Pedrero F, Calero C, Maestro A, Ortega F, Rubio RG. A broad perspective to particle-laden fluid interfaces systems: from chemically homogeneous particles to active colloids. Adv Colloid Interface Sci 2022; 302:102620. [PMID: 35259565 DOI: 10.1016/j.cis.2022.102620] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 01/12/2023]
Abstract
Particles adsorbed to fluid interfaces are ubiquitous in industry, nature or life. The wide range of properties arising from the assembly of particles at fluid interface has stimulated an intense research activity on shed light to the most fundamental physico-chemical aspects of these systems. These include the mechanisms driving the equilibration of the interfacial layers, trapping energy, specific inter-particle interactions and the response of the particle-laden interface to mechanical perturbations and flows. The understanding of the physico-chemistry of particle-laden interfaces becomes essential for taking advantage of the particle capacity to stabilize interfaces for the preparation of different dispersed systems (emulsions, foams or colloidosomes) and the fabrication of new reconfigurable interface-dominated devices. This review presents a detailed overview of the physico-chemical aspects that determine the behavior of particles trapped at fluid interfaces. This has been combined with some examples of real and potential applications of these systems in technological and industrial fields. It is expected that this information can provide a general perspective of the topic that can be exploited for researchers and technologist non-specialized in the study of particle-laden interfaces, or for experienced researcher seeking new questions to solve.
Collapse
Affiliation(s)
- Eduardo Guzmán
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; Unidad de Materia Condensada, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain.
| | - Fernando Martínez-Pedrero
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain.
| | - Carles Calero
- Departament de Física de la Matèria Condensada, Facultat de Física, Universitat de Barcelona, Avenida Diagonal 647, 08028 Barcelona, Spain; Institut de Nanociència i Nanotecnologia, IN2UB, Universitat de Barcelona, Avenida, Diagonal 647, 08028 Barcelona, Spain
| | - Armando Maestro
- Centro de Fı́sica de Materiales (CSIC, UPV/EHU)-Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain; IKERBASQUE-Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
| | - Francisco Ortega
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; Unidad de Materia Condensada, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain
| | - Ramón G Rubio
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; Unidad de Materia Condensada, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain.
| |
Collapse
|
7
|
Guzmán E, Maestro A. Soft Colloidal Particles at Fluid Interfaces. Polymers (Basel) 2022; 14:polym14061133. [PMID: 35335463 PMCID: PMC8956102 DOI: 10.3390/polym14061133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/08/2022] [Accepted: 03/10/2022] [Indexed: 02/01/2023] Open
Abstract
The assembly of soft colloidal particles at fluid interfaces is reviewed in the present paper, with emphasis on the particular case of microgels formed by cross-linked polymer networks. The dual polymer/colloid character as well as the stimulus responsiveness of microgel particles pose a challenge in their experimental characterization and theoretical description when adsorbed to fluid interfaces. This has led to a controversial and, in some cases, contradictory picture that cannot be rationalized by considering microgels as simple colloids. Therefore, it is necessary to take into consideration the microgel polymer/colloid duality for a physically reliable description of the behavior of the microgel-laden interface. In fact, different aspects related to the above-mentioned duality control the organization of microgels at the fluid interface, and the properties and responsiveness of the obtained microgel-laden interfaces. This works present a critical revision of different physicochemical aspects involving the behavior of individual microgels confined at fluid interfaces, as well as the collective behaviors emerging in dense microgel assemblies.
Collapse
Affiliation(s)
- Eduardo Guzmán
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo de Juan XXIII, 28040 Madrid, Spain
- Correspondence: (E.G.); (A.M.)
| | - Armando Maestro
- Centro de Física de Materiales (CSIC, UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 San Sebastian, Spain
- IKERBASQUE—Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
- Correspondence: (E.G.); (A.M.)
| |
Collapse
|
8
|
Chander S, Kulkarni GT, Dhiman N, Kharkwal H. Protein-Based Nanohydrogels for Bioactive Delivery. Front Chem 2021; 9:573748. [PMID: 34307293 PMCID: PMC8299995 DOI: 10.3389/fchem.2021.573748] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 05/27/2021] [Indexed: 12/12/2022] Open
Abstract
Hydrogels possess a unique three-dimensional, cross-linked network of polymers capable of absorbing large amounts of water and biological fluids without dissolving. Nanohydrogels (NGs) or nanogels are composed of diverse types of polymers of synthetic or natural origin. Their combination is bound by a chemical covalent bond or is physically cross-linked with non-covalent bonds like electrostatic interactions, hydrophobic interactions, and hydrogen bonding. Its remarkable ability to absorb water or other fluids is mainly attributed to hydrophilic groups like hydroxyl, amide, and sulphate, etc. Natural biomolecules such as protein- or peptide-based nanohydrogels are an important category of hydrogels which possess high biocompatibility and metabolic degradability. The preparation of protein nanohydrogels and the subsequent encapsulation process generally involve use of environment friendly solvents and can be fabricated using different proteins, such as fibroins, albumin, collagen, elastin, gelatin, and lipoprotein, etc. involving emulsion, electrospray, and desolvation methods to name a few. Nanohydrogels are excellent biomaterials with broad applications in the areas of regenerative medicine, tissue engineering, and drug delivery due to certain advantages like biodegradability, biocompatibility, tunable mechanical strength, molecular binding abilities, and customizable responses to certain stimuli like ionic concentration, pH, and temperature. The present review aims to provide an insightful analysis of protein/peptide nanohydrogels including their preparation, biophysiochemical aspects, and applications in diverse disciplines like in drug delivery, immunotherapy, intracellular delivery, nutraceutical delivery, cell adhesion, and wound dressing. Naturally occurring structural proteins that are being explored in protein nanohydrogels, along with their unique properties, are also discussed briefly. Further, the review also covers the advantages, limitations, overview of clinical potential, toxicity aspects, stability issues, and future perspectives of protein nanohydrogels.
Collapse
Affiliation(s)
- Subhash Chander
- Amity Institute of Phytochemistry and Phytomedicine, Amity University, Noida, India
| | - Giriraj T. Kulkarni
- Amity Institute of Pharmacy, Amity University, Noida, India
- Gokaraju Rangaraju College of Pharmacy, Hyderabad, India
| | | | - Harsha Kharkwal
- Amity Institute of Phytochemistry and Phytomedicine, Amity University, Noida, India
| |
Collapse
|
9
|
Assessment of pH Responsive Delivery of Methotrexate Based on PHEMA-st-PEG-DA Nanohydrogels. Macromol Res 2021. [DOI: 10.1007/s13233-021-9007-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
10
|
Vikulina AS, Feoktistova NA, Balabushevich NG, von Klitzing R, Volodkin D. Cooling-Triggered Release from Mesoporous Poly( N-isopropylacrylamide) Microgels at Physiological Conditions. ACS APPLIED MATERIALS & INTERFACES 2020; 12:57401-57409. [PMID: 33290041 PMCID: PMC7760096 DOI: 10.1021/acsami.0c15370] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 11/24/2020] [Indexed: 05/14/2023]
Abstract
Poly(N-isopropylacrylamide) (pNIPAM) hydrogels have broad potential applications as drug delivery vehicles because of their thermoresponsive behavior. pNIPAM loading/release performances are directly affected by the gel network structure. Therefore, there is a need with the approaches for accurate design of 3D pNIPAM assemblies with the structure ordered at the nanoscale. This study demonstrates size-selective spontaneous loading of macromolecules (dextrans 10-500 kDa) into pNIPAM microgels by microgel heating from 22 to 35 °C (microgels collapse and trap dextrans) followed by the dextran release upon further cooling down to 22 °C (microgels swell back) . This temperature-mediated behavior is fully reversible. The structure of pNIPAM microgels was tailored via hard templating and cross-linking of the hydrogel using sacrificial mesoporous cores of vaterite CaCO3 microcrystals. In addition, the fabrication of hollow thermoresponsive pNIPAM microshells has been demonstrated, utilizing vaterite microcrystals that had narrower pores. The proposed approach for heating-triggered encapsulation and cooling-triggered release into/from pNIPAM microgels may pave the ways for applications of pNIPAM hydrogels for skin and transdermal cooling-responsive drug delivery in the future.
Collapse
Affiliation(s)
- Anna S. Vikulina
- Fraunhofer Institute
for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses, Am Mühlenberg 13, Golm, Potsdam 14476, Germany
- School
of Science and Technology, Nottingham Trent
University, Clifton Lane, Nottingham NG11 8NS, United Kingdom
| | - Natalia A. Feoktistova
- Fraunhofer Institute
for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses, Am Mühlenberg 13, Golm, Potsdam 14476, Germany
- Department
of Chemistry, Lomonosov Moscow State University, Leninskiye gory 1-3, Moscow 119991, Russia
| | - Nadezhda G. Balabushevich
- Department
of Chemistry, Lomonosov Moscow State University, Leninskiye gory 1-3, Moscow 119991, Russia
| | - Regine von Klitzing
- Department of Physics, Technische
Universität Darmstadt, Hochschulstraße 8, Darmstadt 64289, Germany
| | - Dmitry Volodkin
- School
of Science and Technology, Nottingham Trent
University, Clifton Lane, Nottingham NG11 8NS, United Kingdom
- Department
of Chemistry, Lomonosov Moscow State University, Leninskiye gory 1-3, Moscow 119991, Russia
| |
Collapse
|
11
|
Shekhar S, Mukherjee M, Sen AK. Effect of Fe2O3 on the swelling, mechanical and thermal behaviour of NIPAM-based terpolymer. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-020-03336-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
12
|
Goncharuk O, Samchenko Y, Kernosenko L, Korotych O, Poltoratska T, Pasmurtseva N, Oranska O, Sternik D, Mamyshev I. Thermoresponsive hydrogels physically crosslinked with magnetically modified LAPONITE® nanoparticles. SOFT MATTER 2020; 16:5689-5701. [PMID: 32519723 DOI: 10.1039/d0sm00929f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Recently, considering the potential applications of hydrogel nanocomposites in biomedical engineering, there has been a growing interest in the synthesis of hydrogels with improved mechanical properties. Among magnetic materials, iron oxides are of particular interest due to their magnetic properties and biocompatibility. At the same time, LAPONITE®, a synthetic clay, can be used to improve the mechanical properties of polymer-based nanocomposites. In this study we report the effects of hydrogel composition and structure on its thermoresponsive properties and hydrogel sorption and release of a model anticancer drug - 5-fluorouracil. Using one-step coprecipitation method we synthesized magnetic LAPONITE® (LAM) nanoparticles with magnetite-to-LAPONITE® weight ratios from 2 : 1 to 1 : 8. With increase in magnetite concentration the ferrofluidic properties of LAM nanoparticles are getting improved, while fluorouracil absorptivity - decreases. Exfoliation of the clay is observed when the magnetite content exceeds the LAPONITE® content. Physical crosslinking of poly(N-isopropylacrylamide) with LAM nanoparticles yields magnetic thermosensitive hydrogel nanocomposites with controllable temperature-induced drug release. All hydrogel nanocomposites have a distinct volume phase transition from a swollen state to a collapsed state upon heating within the physiologically acceptable temperature range of 33-36 °C.
Collapse
Affiliation(s)
- Olena Goncharuk
- Ovcharenko Institute of Biocolloidal Chemistry of NAS of Ukraine, Kyiv, Ukraine and Chuiko Institute of Surface Chemistry of NAS of Ukraine, Kyiv, Ukraine
| | - Yurii Samchenko
- Ovcharenko Institute of Biocolloidal Chemistry of NAS of Ukraine, Kyiv, Ukraine
| | - Liudmyla Kernosenko
- Ovcharenko Institute of Biocolloidal Chemistry of NAS of Ukraine, Kyiv, Ukraine
| | - Olena Korotych
- Chemical Engineering Department, University of Florida, Gainesville, USA.
| | - Tetiana Poltoratska
- Ovcharenko Institute of Biocolloidal Chemistry of NAS of Ukraine, Kyiv, Ukraine
| | - Natalia Pasmurtseva
- Ovcharenko Institute of Biocolloidal Chemistry of NAS of Ukraine, Kyiv, Ukraine
| | - Olena Oranska
- Chuiko Institute of Surface Chemistry of NAS of Ukraine, Kyiv, Ukraine
| | - Dariusz Sternik
- Chemistry Department, Maria Curie-Sklodowska University, Lublin, Poland
| | - Igor Mamyshev
- Ovcharenko Institute of Biocolloidal Chemistry of NAS of Ukraine, Kyiv, Ukraine
| |
Collapse
|
13
|
Controlling Fluid Diffusion and Release through Mixed-Molecular-Weight Poly(ethylene) Glycol Diacrylate (PEGDA) Hydrogels. MATERIALS 2019; 12:ma12203381. [PMID: 31623186 PMCID: PMC6829336 DOI: 10.3390/ma12203381] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/01/2019] [Accepted: 10/08/2019] [Indexed: 02/03/2023]
Abstract
Due to their inherent ability to swell in the presence of aqueous solutions, hydrogels offer a means for the delivery of therapeutic agents in a range of applications. In the context of designing functional tissue-engineering scaffolds, their role in providing for the diffusion of nutrients to cells is of specific interest. In particular, the facility to provide such nutrients over a prolonged period within the core of a 3D scaffold is a critical consideration for the prevention of cell death and associated tissue-scaffold failure. The work reported here seeks to address this issue via fabrication of hybrid 3D scaffolds with a component fabricated from mixed-molecular-weight hydrogel formulations capable of storing and releasing nutrient solutions over a predetermined time period. To this end, poly(ethylene) glycol diacrylate hydrogel blends comprising mixtures of PEGDA-575 Mw and PEGDA-2000 Mw were prepared via UV polymerization. The effects of addition of the higher-molecular-weight component and the associated photoinitiator concentration on mesh size and corresponding fluid permeability have been investigated by diffusion and release measurements using a Theophylline as an aqueous nutrient model solution. Fluid permeability across the hydrogel films has also been determined using a Rhodamine B solution and associated fluorescence measurements. The results indicate that addition of PEGDA-2000 Mw to PEGDA-575 Mw coupled with the use of a specific photoinitiator concentration provides a means to change mesh size in a hydrogel network while still retaining an overall microporous material structure. The range of mesh sizes created and their distribution in a 3D construct provides for the conditions required for a more prolonged nutrient release profile for tissue-engineering applications.
Collapse
|
14
|
New phosphazene nanospheres anchored Fe(III), Co(II) and Cu(II) Schiff base complexes as efficient catalysts in oxidation of phenol. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01649-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
15
|
Gellan Hydrogels: Preparation, Rheological Characterization and Application in Encapsulation of Curcumin. FOOD BIOPHYS 2019. [DOI: 10.1007/s11483-019-09568-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
16
|
Matsumoto S, Kanazawa A, Kanaoka S, Aoshima S. Dual stimuli-responsive copolymers with precisely arranged degradable units: synthesis by controlled alternating copolymerization of oxyethylene-containing vinyl ethers and conjugated aldehydes. Polym Chem 2019. [DOI: 10.1039/c9py00513g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thermoresponsive polymers with precisely arranged degradable units were synthesized via controlled cationic copolymerization of oxyethylene-containing vinyl ethers and conjugated aldehydes.
Collapse
Affiliation(s)
- Suzuka Matsumoto
- Department of Macromolecular Science
- Graduate School of Science
- Osaka University
- Osaka 560-0043
- Japan
| | - Arihiro Kanazawa
- Department of Macromolecular Science
- Graduate School of Science
- Osaka University
- Osaka 560-0043
- Japan
| | - Shokyoku Kanaoka
- Department of Macromolecular Science
- Graduate School of Science
- Osaka University
- Osaka 560-0043
- Japan
| | - Sadahito Aoshima
- Department of Macromolecular Science
- Graduate School of Science
- Osaka University
- Osaka 560-0043
- Japan
| |
Collapse
|
17
|
Begum R, Farooqi ZH, Butt Z, Wu Q, Wu W, Irfan A. Engineering of responsive polymer based nano-reactors for facile mass transport and enhanced catalytic degradation of 4-nitrophenol. J Environ Sci (China) 2018; 72:43-52. [PMID: 30244750 DOI: 10.1016/j.jes.2017.12.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 11/09/2017] [Accepted: 12/01/2017] [Indexed: 05/15/2023]
Abstract
Silver nanoparticles with average diameter of 10±3nm were synthesized within the sieves of poly(N-isopropylacrylamide-2-hydroxyethylmethacrylate-acrylic acid) (p(NIPAAm-HEMA-AAc)) polymer microgels. Free radial emulsion polymerization was employed for synthesis of p(NIPAAm-HEMA-AAc) polymer microgels. Silver nanoparticles were introduced within the microgels sphere by in situ reduction method. Microgels and hybrid microgels were characterized by Fourier transform infrared spectroscopy, ultra violet-visible spectroscopy, transmission electron microscopy and dynamic light scattering measurements. Catalytic activity of Ag-p(NIPAAm-HEMA-AAc) hybrid microgels was studied using catalytic reduction of 4-nitrophenol (4-NP) as a model reaction in aqueous media. The influence of sodium borohydride (NaBH4) concentration, catalyst dose and 4-NP concentration on catalytic reduction of 4-NP was investigated. A linear relationship was found between catalyst dose and apparent rate constant (kapp). The mechanism of catalysis by hybrid microgels was explored for further development in this area. The deep analysis of catalytic process reveals that the unique combination of NIPAAm, HEMA and AAc does not only stabilize silver nanoparticles in polymer network but it also enhances the mass transport of hydrophilic substrate like 4-NP from outside to inside the polymer network.
Collapse
Affiliation(s)
- Robina Begum
- Centre for Undergraduate studies, University of the Punjab, New Campus, Lahore 54590, Pakistan
| | - Zahoor H Farooqi
- Institute of Chemistry, University of the Punjab, New Campus, Lahore 54590, Pakistan.
| | - Zonarah Butt
- Institute of Chemistry, University of the Punjab, New Campus, Lahore 54590, Pakistan
| | - Qingshi Wu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Weitai Wu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ahmad Irfan
- Department of Chemistry, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia; Research Center for Advanced Materials Science, King Khalid University, Abha 61413, Saudi Arabia
| |
Collapse
|
18
|
Nguyen PAH, Stapleton L, Ledesma-Mendoza A, Cuylear DL, Cooperstein MA, Canavan HE. Exploring the anomalous cytotoxicity of commercially-available poly( N-isopropyl acrylamide) substrates. Biointerphases 2018; 13:06D406. [PMID: 30231617 PMCID: PMC6145861 DOI: 10.1116/1.5045142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/21/2018] [Accepted: 08/30/2018] [Indexed: 11/17/2022] Open
Abstract
Poly(N-isopropyl acrylamide) (pNIPAM) is a stimulus-responsive polymer that has been of great interest to the bioengineering community. When the temperature is lowered below its lower critical solution temperature (∼32 °C), pNIPAM rapidly hydrates, and adherent cells detach as intact cell sheets. This cell-releasing behavior in a physiologically relevant temperature range has led to NIPAM's use for engineered tissues and other devices. In a previous study, however, the authors found that although most techniques used to polymerize NIPAM yield biocompatible films, some formulations from commercially-available NIPAM (cpNIPAM) can be cytotoxic. In this work, the authors investigate the reasons underlying this anomaly. The authors evaluated the response of a variety of cell types (e.g., bovine aortic endothelial cells, BAECs; monkey kidney epithelial cells, Vero cells; and mouse embryonic fibroblasts, 3T3s) after culture on substrates spin-coated with sol-gel (spNIPAM) and commercially-prepared (cpNIPAM). The relative biocompatibility of each cell type was evaluated using observations of its cell morphology and function (e.g., XTT and Live/Dead assays) after 48 and 96 h in culture. In addition, the substrates themselves were analyzed using NMR, goniometry, and XPS. The authors find that all the cell types were compromised by 96 h in culture with cpNIPAM, although the manner in which the cells are compromised differs; in particular, while Vero and 3T3 cells appear to be undergoing cytotoxic death, BAECs undergo apoptic death. The authors believe that this result is due to a combination of factors, including the presence of short chain oligomers of NIPAM in the commercially-available preparation. This work will provide valuable insights into the cytotoxicity of commercially-prepared polymer substrates for this type of bioengineering work and therefore into the applicability of cells grown on such surfaces for human subjects.
Collapse
|
19
|
Mochalova AE, Smirnova LA. State of the Art in the Targeted Modification of Chitosan. POLYMER SCIENCE SERIES B 2018. [DOI: 10.1134/s1560090418020045] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
20
|
Mechanical and Adhesive Properties of Ploy(ethylene glycerol) Diacrylate Based Hydrogels Plasticized with PEG and Glycerol. Chem Res Chin Univ 2018. [DOI: 10.1007/s40242-018-7337-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
21
|
Mathew AP, Uthaman S, Cho KH, Cho CS, Park IK. Injectable hydrogels for delivering biotherapeutic molecules. Int J Biol Macromol 2017; 110:17-29. [PMID: 29169942 DOI: 10.1016/j.ijbiomac.2017.11.113] [Citation(s) in RCA: 143] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 10/24/2017] [Accepted: 11/17/2017] [Indexed: 12/19/2022]
Abstract
To date, numerous delivery systems based on either organic or inorganic material have been developed to achieve efficient and sustained delivery of therapeutics. Hydrogels, which are three dimensional networks of crosslinked hydrophilic polymers, have a significant role in solving the clinical and pharmacological limitations of present systems because of their biocompatibility, ease of preparation and unique physical properties such as a tunable porous nature and affinity for biological fluids. Development of an in situ forming injectable hydrogel system has allowed excellent spatial and temporal control, unlike systemically administered therapeutics. Injectable hydrogel systems can offset difficulties with conventional hydrogel-based drug delivery systems in the clinic by forming a drug/gene delivery or cell-growing depot in the body with a single injection, thereby enabling patient compliance and comfort. Carbohydrate polymers are widely used for the synthesis of injectable in situ-forming hydrogels because of ready availability, presence of modifiable functional groups, biocompatibility and other physiochemical properties. In this review, we discuss different aspects of injectable hydrogels, such as bulk hydrogels/macrogels, microgels, and nanogels derived from natural polymers, and their importance in the delivery of therapeutics such as genes, drugs, cells or other biomolecules and how these revolutionary systems can complement existing therapeutic delivery systems.
Collapse
Affiliation(s)
- Ansuja Pulickal Mathew
- Department of Biomedical Sciences, BK 21 PLUS Center for Creative Biomedical Scientists at Chonnam National University, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - Saji Uthaman
- Department of Polymer Science and Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Ki-Hyun Cho
- Department of Plastic Surgery, Institute of Dermatology and Plastic Surgery, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA
| | - Chong-Su Cho
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea.
| | - In-Kyu Park
- Department of Biomedical Sciences, BK21 PLUS Center for Creative Biomedical Scientists at Chonnam National University, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 61469, Republic of Korea.
| |
Collapse
|
22
|
Nguyen NHA, Darwish MSA, Stibor I, Kejzlar P, Ševců A. Magnetic Poly(N-isopropylacrylamide) Nanocomposites: Effect of Preparation Method on Antibacterial Properties. NANOSCALE RESEARCH LETTERS 2017; 12:571. [PMID: 29052060 PMCID: PMC5648729 DOI: 10.1186/s11671-017-2341-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 10/10/2017] [Indexed: 05/16/2023]
Abstract
The most challenging task in the preparation of magnetic poly(N-isopropylacrylamide) (Fe3O4-PNIPAAm) nanocomposites for bio-applications is to maximise their reactivity and stability. Emulsion polymerisation, in situ precipitation and physical addition were used to produce Fe3O4-PNIPAAm-1, Fe3O4-PNIPAAm-2 and Fe3O4-PNIPAAm-3, respectively. Their properties were characterised using scanning electron microscopy (morphology), zeta-potential (surface charge), thermogravimetric analysis (stability), vibrating sample magnetometry (magnetisation) and dynamic light scattering. Moreover, we investigated the antibacterial effect of each nanocomposite against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus. Both Fe3O4-PNIPAAm-1 and Fe3O4-PNIPAAm-2 nanocomposites displayed high thermal stability, zeta potential and magnetisation values, suggesting stable colloidal systems. Overall, the presence of Fe3O4-PNIPAAm nanocomposites, even at lower concentrations, caused significant damage to both E. coli and S. aureus DNA and led to a decrease in cell viability. Fe3O4-PNIPAAm-1 displayed a stronger antimicrobial effect against both bacterial strains than Fe3O4-PNIPAAm-2 and Fe3O4-PNIPAAm-3. Staphylococcus aureus was more sensitive than E. coli to all three magnetic PNIPAAm nanocomposites.
Collapse
Affiliation(s)
- Nhung H. A. Nguyen
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, 461 17 Liberec, Czech Republic
- Faculty of Mechatronics, Informatics and Interdisciplinary Studies, Technical University of Liberec, 461 17 Liberec, Czech Republic
| | - Mohamed S. A. Darwish
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, 461 17 Liberec, Czech Republic
- Egyptian Petroleum Research Institute, 1 Ahmed El-Zomor Street, El Zohour Region, Nasr City, Cairo 11727 Egypt
| | - Ivan Stibor
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, 461 17 Liberec, Czech Republic
| | - Pavel Kejzlar
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, 461 17 Liberec, Czech Republic
| | - Alena Ševců
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, 461 17 Liberec, Czech Republic
- Faculty of Mechatronics, Informatics and Interdisciplinary Studies, Technical University of Liberec, 461 17 Liberec, Czech Republic
| |
Collapse
|
23
|
Kozbekçi C, Şenkal BF, Erbil C. Compressive moduli and network parameters of N
-isopropylacrylamide hydrogels copolymerized by monoesters of itaconic acid and crosslinked with tetraallylammonium bromide. J Appl Polym Sci 2017. [DOI: 10.1002/app.45039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Cansu Kozbekçi
- Istanbul Technical University, Science and Letters Faculty, Chemistry Department; 34469 Maslak İstanbul Turkey
| | - B. Filiz Şenkal
- Istanbul Technical University, Science and Letters Faculty, Chemistry Department; 34469 Maslak İstanbul Turkey
| | - Candan Erbil
- Istanbul Technical University, Science and Letters Faculty, Chemistry Department; 34469 Maslak İstanbul Turkey
| |
Collapse
|
24
|
Men J, Wang R, Hu X, Zhao H, Wei H, Hu C, Gao B. Preparation of heparin-functionalized microspheres and study on their adsorption characteristic for basic protein lysozyme. Macromol Res 2016. [DOI: 10.1007/s13233-016-2016-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
25
|
Mahida VP, Patel MP. A novel approach for the synthesis of hydrogel nanoparticles and a removal study of reactive dyes from industrial effluent. RSC Adv 2016. [DOI: 10.1039/c5ra19441e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel amphoteric monomer, N,N-diallyl carboxypiperidinium bromide (DACPB), has been synthesized by the stepwise condensation of isonipecotic acid to an ester and then with allyl chloride and allyl bromide.
Collapse
Affiliation(s)
- Viran P. Mahida
- Department of Chemistry
- Sardar Patel University
- Vallabh Vidyanagar-388120
- India
| | - Manish P. Patel
- Department of Chemistry
- Sardar Patel University
- Vallabh Vidyanagar-388120
- India
| |
Collapse
|
26
|
Reddy PRS, Rao KK, Rao KM, Reddy NS, Eswaramma S. pH sensitive poly(methyl methacrylate-co-acryloyl phenylalanine) nanogels and their silver nanocomposites for biomedical applications. J Drug Deliv Sci Technol 2015. [DOI: 10.1016/j.jddst.2015.07.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
27
|
Deshmukh OS, van den Ende D, Stuart MC, Mugele F, Duits MHG. Hard and soft colloids at fluid interfaces: Adsorption, interactions, assembly & rheology. Adv Colloid Interface Sci 2015; 222:215-27. [PMID: 25288385 DOI: 10.1016/j.cis.2014.09.003] [Citation(s) in RCA: 136] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 09/09/2014] [Accepted: 09/13/2014] [Indexed: 11/15/2022]
Abstract
Soft microgel particles inherently possess qualities of both polymers as well as particles. We review the similarities and differences between soft microgel particles and stiff colloids at fluid-fluid interfaces. We compare two fundamental aspects of particle-laden interfaces namely the adsorption kinetics and the interactions between adsorbed particles. Although it is well established that the transport of both hard particles and microgels to the interface is driven by diffusion, the analysis of the adsorption kinetics needs reconsideration and a proper equation of state relating the surface pressure to the adsorbed mass should be used. We review the theoretical and experimental investigations into the interactions of particles at the interface. The rheology of the interfacial layers is intimately related to the interactions, and the differences between hard particles and microgels become pronounced. The assembly of particles into the layer is another distinguishing factor that separates hard particles from soft microgel particles. Microgels deform substantially upon adsorption and the stability of a microgel-stabilized emulsion depends on the conformational changes triggered by external stimuli.
Collapse
Affiliation(s)
- Omkar S Deshmukh
- Physics of Complex Fluids Group, Dept. Science and Technology, University of Twente, Enschede, The Netherlands
| | - Dirk van den Ende
- Physics of Complex Fluids Group, Dept. Science and Technology, University of Twente, Enschede, The Netherlands
| | - Martien Cohen Stuart
- Physics of Complex Fluids Group, Dept. Science and Technology, University of Twente, Enschede, The Netherlands; Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Wageningen, The Netherlands
| | - Frieder Mugele
- Physics of Complex Fluids Group, Dept. Science and Technology, University of Twente, Enschede, The Netherlands
| | - Michel H G Duits
- Physics of Complex Fluids Group, Dept. Science and Technology, University of Twente, Enschede, The Netherlands.
| |
Collapse
|
28
|
Chen H, Kelley M, Guo C, Yarger JL, Dai LL. Adsorption and release of surfactant into and from multifunctional zwitterionic poly(NIPAm-co-DMAPMA-co-AAc) microgel particles. J Colloid Interface Sci 2015; 449:332-40. [DOI: 10.1016/j.jcis.2015.01.064] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 01/23/2015] [Accepted: 01/23/2015] [Indexed: 10/24/2022]
|
29
|
Mukesh C, Prasad K. Formation of Multiple Structural Formats of DNA in a Bio-Deep Eutectic Solvent. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Chandrakant Mukesh
- Marine Biotechnology and Ecology Division; CSIR-Central Salt and Marine Chemicals Research Institute; G. B. Marg Bhavnagar 364002 Gujarat India
- AcSIR-Central Salt and Marine Chemicals Research Institute; G. B. Marg Bhavnagar 364002 Gujarat India
| | - Kamalesh Prasad
- Marine Biotechnology and Ecology Division; CSIR-Central Salt and Marine Chemicals Research Institute; G. B. Marg Bhavnagar 364002 Gujarat India
- AcSIR-Central Salt and Marine Chemicals Research Institute; G. B. Marg Bhavnagar 364002 Gujarat India
| |
Collapse
|
30
|
Bialik-Wąs K, Pielichowski K, Zielina M. Acrylic hydrogels containing MET-loaded poly(acrylic acid-co-methyl methacrylate) micro- and nanoparticles. JOURNAL OF POLYMER RESEARCH 2014. [DOI: 10.1007/s10965-014-0623-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
31
|
Xiang X, Ding X, Moser T, Gao Q, Shokuhfar T, Heiden PA. Peptide-directed self-assembly of functionalized polymeric nanoparticles. Part II: effects of nanoparticle composition on assembly behavior and multiple drug loading ability. Macromol Biosci 2014; 15:568-82. [PMID: 25476787 DOI: 10.1002/mabi.201400438] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2014] [Revised: 11/06/2014] [Indexed: 01/22/2023]
Abstract
Peptide-functionalized polymeric nanoparticles were designed and self-assembled into continuous nanoparticle fibers and three-dimensional scaffolds via ionic complementary peptide interaction. Different nanoparticle compositions can be designed to be appropriate for each desired drug, so that the release of each drug is individually controlled and the simultaneous sustainable release of multiple drugs is achieved in a single scaffold. A self-assembled scaffold membrane was incubated with NIH3T3 fibroblast cells in a culture dish that demonstrated non-toxicity and non-inhibition on cell proliferation. This type of nanoparticle scaffold combines the advantages of peptide self-assembly and the versatility of polymeric nanoparticle controlled release systems for tissue engineering.
Collapse
Affiliation(s)
- Xu Xiang
- Department of Chemistry, Michigan Technological University, Houghton, 49931, Michigan
| | | | | | | | | | | |
Collapse
|
32
|
Enhanced therapeutic efficacy of lipophilic amphotericin B against Candida albicans with amphiphilic poly(N-isopropylacrylamide) nanogels. Macromol Res 2014. [DOI: 10.1007/s13233-014-2162-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
33
|
Synthesis and characterization of PS-b-PGMA diblock copolymer and its interaction with blood proteins and donepezil. REACT FUNCT POLYM 2014. [DOI: 10.1016/j.reactfunctpolym.2014.05.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
34
|
Farasat R, Vyazovkin S. Coil-to-Globule Transition of Poly(N-isopropylacrylamide) in Aqueous Solution: Kinetics in Bulk and Nanopores. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400354] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Reza Farasat
- Department of Chemistry; University of Alabama at Birmingham; 901 S. 14 Street Birmingham AL 35294 USA
| | - Sergey Vyazovkin
- Department of Chemistry; University of Alabama at Birmingham; 901 S. 14 Street Birmingham AL 35294 USA
| |
Collapse
|
35
|
Fabrication and characterization of poly(vinyl alcohol)/chitosan hydrogel thin films via UV irradiation. Eur Polym J 2013. [DOI: 10.1016/j.eurpolymj.2013.09.032] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
36
|
Cuenot S, Radji S, Alem H, Demoustier-Champagne S, Jonas AM. Control of swelling of responsive nanogels by nanoconfinement. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2012; 8:2978-2985. [PMID: 22678885 DOI: 10.1002/smll.201200417] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Revised: 04/19/2012] [Indexed: 06/01/2023]
Abstract
The volume phase transition (VPT) behavior and the swelling properties of individual thermoresponsive poly(N-isopropylacrylamide) (PNIPAM)-based nanogels are investigated by in situ atomic force microscopy (AFM). Using a template-based synthesis method, cylindrical nanogels are synthesized for different polymerization times within nanopores (80 nm) of poly(ethylene terephthalate) (PET) track-etched membranes. The confinement conditions, characterized by the ratio Φ between the average chain length and the pore diameter, are varied between 0.35 and 0.8. After dissolving the membranes, the volume of individual nanogels composed of PNIPAM-g-PET diblock copolymers is numerically extracted from AFM images while varying the water temperature from 28 to 44 °C. From the measured volumes, the swelling of nanogels is investigated as a function of both the water temperature and the confinement conditions imposed during the synthesis. Contrary to the VPT, the maximum swelling of the nanogels is strongly affected by these confinement conditions. The volume of nanogels in the swollen state can reach 1.1 to 2.1 times their volume in the collapsed state for a ratio Φ of 0.8 and 0.5, respectively. These results open a new way to tune the swelling of nanogels, simply by adjusting the degree of confinement imposed during their synthesis within nanopores, which is particularly interesting for biomedical applications requiring a high degree of control over swelling properties, such as drug-delivery nanotools.
Collapse
Affiliation(s)
- Stéphane Cuenot
- Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, 2 Rue de la Houssinière, 44322 Nantes cedex 3, France.
| | | | | | | | | |
Collapse
|
37
|
David G, Cristea M, Balhui C, Timpu D, Doroftei F, Simionescu BC. Effect of cross-linking methods on structure and properties of poly(ε-caprolactone) stabilized hydrogels containing biopolymers. Biomacromolecules 2012; 13:2263-72. [PMID: 22694366 DOI: 10.1021/bm300421w] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Different dense and porous biodegradable matrices based on solely atelocollagen, or with different atelocollagen and hyaluronic acid derivative ratios, were obtained by varying feeding formulations, cross-linking reaction parameters, and preparative protocols. The compositions and methods for forming hydrogels through a combination of physical and chemical cross-linking processes are provided. The chemical cross-linking was mainly mediated by a synthetic component, a poly(ε-caprolactone) reactive derivative, aiming the development of new hybrid hydrogels with tailored characteristics by an appropriate use of the advantages offered by the included natural and synthetic components and the selection of the preparative procedure. The structure and morphology of the 3D hybrid materials were comparatively investigated by means of Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), X-ray diffraction (XRD), and environmental scanning electron microscopy (ESEM). FTIR and XRD analysis showed no signs of collagen denaturation during the formation of 3D structures. The influence of various factors, such as the chemical composition of the resulted hydrogels and their morphology, on water uptake and water vapor sorption, mechanical behavior, as well as on in vitro degradation characteristics, was systematically investigated. The experimental results point on the advantage offered by the high and modular physicochemical stability of the ternary hydrogels cross-linked by combined approaches. All newly developed materials show no hemolytic effect, which recommends them for potential biomedical applications.
Collapse
Affiliation(s)
- Geta David
- Department of Natural and Synthetic Polymers, Gh. Asachi Technical University of Iasi, Iasi, Romania
| | | | | | | | | | | |
Collapse
|
38
|
Hack B, Egger H, Uhlemann J, Henriet M, Wirth W, Vermeer A, Duff D. Advanced Agrochemical Formulations through Encapsulation Strategies? CHEM-ING-TECH 2012. [DOI: 10.1002/cite.201100212] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
39
|
Trongsatitkul T, Budhlall BM. Multicore-shell PNIPAm-co-PEGMa microcapsules for cell encapsulation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:13468-13480. [PMID: 21962146 DOI: 10.1021/la203030j] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The overall goal of this study was to fabricate multifunctional core-shell microcapsules with biological cells encapsulated within the polymer shell. Biocompatible temperature responsive microcapsules comprised of silicone oil droplets (multicores) and yeast cells embedded in a polymer matrix (shell) were prepared using a novel microarray approach. The cross-linked polymer shell and silicone multicores were formed in situ via photopolymerization of either poly(N-isopropylacryamide)(PNIPAm) or PNIPAm, copolymerized with poly(ethylene glycol monomethyl ether monomethacrylate) (PEGMa) within the droplets of an oil-in-water-in-oil double emulsion. An optimized recipe yielded a multicore-shell morphology, which was characterized by optical and laser scanning confocal microscopy (LSCM) and theoretically confirmed by spreading coefficient calculations. Spreading coefficients were calculated from interfacial tension and contact angle measurements as well as from the determination of the Hamaker constants and the pair potential energies. The effects of the presence of PEGMa, its molecular weight (M(n) 300 and 1100 g/mol), and concentration (10, 20, and 30 wt %) were also investigated, and they were found not to significantly alter the morphology of the microcapsules. They were found, however, to significantly improve the viability of the yeast cells, which were encapsulated within PNIPAm-based microcapsules by direct incorporation into the monomer solutions, prior to polymerization. Under LSCM, the fluorescence staining for live and dead cells showed a 30% viability of yeast cells entrapped within the PNIPAm matrix after 45 min of photopolymerization, but an improvement to 60% viability in the presence of PEGMa. The thermoresponsive behavior of the microcapsules allows the silicone oil cores to be irreversibly ejected, and so the role of the silicone oil is 2-fold. It facilitates multifunctionality in the microcapsule by first being used as a template to obtain the desired core-shell morphology, and second it can act as an encapsulant for oil-soluble drugs. It was shown that the encapsulated oil droplets were expelled above the volume phase transition temperature of the polymer, while the collapsed microcapsule remained intact. When these microcapsules were reswollen with an aqueous solution, it was observed that the hollow compartments refilled. In principle, these hollow-core microcapsules could then be filled with water-soluble drugs that could be delivered in vivo in response to temperature.
Collapse
Affiliation(s)
- Tatiya Trongsatitkul
- NSF Center for High-Rate Nanomanufacturing and Department of Plastics Engineering, University of Massachusetts, Lowell, Massachusetts 01854, United States
| | | |
Collapse
|
40
|
Wang KW, Lee KG, Park TJ, Lee YC, Yang JW, Kim DH, Lee SJ, Park JY. Organoclay-assisted interfacial polymerization for microfluidic production of monodisperse PEG-microdroplets and in situ encapsulation of E. coli. Biotechnol Bioeng 2011; 109:289-94. [DOI: 10.1002/bit.23286] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2011] [Revised: 06/19/2011] [Accepted: 07/25/2011] [Indexed: 11/09/2022]
|
41
|
Leung MKM, Such GK, Johnston APR, Biswas DP, Zhu Z, Yan Y, Lutz JF, Caruso F. Assembly and degradation of low-fouling click-functionalized poly(ethylene glycol)-based multilayer films and capsules. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2011; 7:1075-85. [PMID: 21425467 DOI: 10.1002/smll.201002258] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Indexed: 05/13/2023]
Abstract
Nano-/micrometer-scaled films and capsules made of low-fouling materials such as poly(ethylene glycol) (PEG) are of interest for drug delivery and tissue engineering applications. Herein, the assembly and degradation of low-fouling, alkyne-functionalized PEG (PEG(Alk) ) multilayer films and capsules, which are prepared by combining layer-by-layer (LbL) assembly and click chemistry, are reported. A nonlinear, temperature-responsive PEG(Alk) is synthesized, and is then used to form hydrogen-bonded multilayers with poly(methacrylic acid) (PMA) at pH 5. The thermoresponsive behavior of PEG(Alk) is exploited to tailor film buildup by adjusting the assembly conditions. Using alkyne-azide click chemistry, PEG(Alk)/PMA multilayers are crosslinked with a bisazide linker that contains a disulfide bond, rendering these films and capsules redox-responsive. At pH 7, by disrupting the hydrogen bonding between the polymers, PEG(Alk) LbL films and PEG(Alk) -based capsules are obtained. These films exhibit specific deconstruction properties under simulated intracellular reducing conditions, but remain stable at physiological pH, suggesting potential applications in controlled drug release. The low-fouling properties of the PEG films are confirmed by incubation with human serum and a blood clot. Additionally, these capsules showed negligible toxicity to human cells.
Collapse
Affiliation(s)
- Melissa K M Leung
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria 3010, Australia
| | | | | | | | | | | | | | | |
Collapse
|
42
|
Chitosan-Derivative Based Hydrogels as Drug Delivery Platforms: Applications in Drug Delivery and Tissue Engineering. ACTIVE IMPLANTS AND SCAFFOLDS FOR TISSUE REGENERATION 2011. [DOI: 10.1007/8415_2010_55] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
43
|
Lee KG, Park TJ, Soo SY, Wang KW, Kim BII, Park JH, Lee CS, Kim DH, Lee SJ. Synthesis and utilization of E. coli-encapsulated PEG-based microdroplet using a microfluidic chip for biological application. Biotechnol Bioeng 2010; 107:747-51. [PMID: 20632371 DOI: 10.1002/bit.22861] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
We report herein an effective strategy for encapsulating Escherichia coli in polyethylene glycol diacrylate (PEGDA) microdroplets using a microfluidic device and chemical polymerization. PEGDA was employed as a reactant due to the biocompatibility, high porosity, and hydrophilic property. The uniform size and shape of microdroplets are obtained in a single-step process using microfluidic device. The size of microdroplets can be controlled through the changing continuous flow rate. The combination of microdroplet generation and chemical polymerization techniques provide unique environment to produce non-toxic ways of fabricating microorganism-encapsulated hydrogel microbeads. Due to these unique properties of micro-sized hydrogel microbeads, the encapsulated E. coli can maintain viability inside of microbeads and green fluorescent protein (GFP) and red fluorescent protein (RFP) genes are efficiently expressed inside of microbeads after isopropyl-β-D-thiogalactopyranoside induction, suggesting that there is no low-molecular weight substrate transfer limitation inside of microbeads. Furthermore, non-toxic, gentle, and outstanding biocompatibility of microbeads, the encapsulated E. coli can be used in various applications including biotransformation, biosensing, bioremediation, and engineering of artificial cells.
Collapse
Affiliation(s)
- Kyoung G Lee
- 1NEMS-Bio Team, National NanoFab Center, 335 Gwahangno, Yuseong-gu, Daejeon, Republic of Korea
| | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Luppi B, Bigucci F, Cerchiara T, Zecchi V. Chitosan-based hydrogels for nasal drug delivery: from inserts to nanoparticles. Expert Opin Drug Deliv 2010; 7:811-28. [DOI: 10.1517/17425247.2010.495981] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|