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Siryk O, Goncharuk O, Samchenko Y, Kernosenko L, Szewczuk-Karpisz K. Comparison of Structural, Water-Retaining and Sorption Properties of Acrylamide-Based Hydrogels Cross-Linked by Physical and Chemical Methods. Chemphyschem 2024; 25:e202300812. [PMID: 38227375 DOI: 10.1002/cphc.202300812] [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: 10/31/2023] [Revised: 12/03/2023] [Indexed: 01/17/2024]
Abstract
Two series of hydrogels based on acrylamide and its copolymers with acrylonitrile and acrylic acid were synthesized by two cross-linking methods - chemical (using N,N'-methylene bis-acrylamide) and physical (using montmorillonite (MMT)) ones. The structure of the gels was characterized by Fourier Transform Infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The swelling and sorption properties were analyzed as a function of both the monomer composition and the cross-linking method. The shift of the band corresponding to Si-O (995-1030 cm-1 ) confirmed the formation of intercalation structures for MMT-cross-linked gels. Moreover, physically cross-linked gels demonstrated a non-monotonic dependence of the swelling degree on the MMT concentration, and acrylamide-acrylic acid copolymer MMT-cross-linked gels showed pH sensitivity and the highest swelling degree of 150 g/g. The highest sorption capacity towards cadmium(II) ions was demonstrated by acrylamide-acrylic acid copolymer gels, both covalently cross-linked (30 mg/g) and MMT-cross-linked (8.9 mg/g).
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Affiliation(s)
- Olena Siryk
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290, Lublin, Poland
- F.D. Ovcharenko Institute of Biocolloidal Chemistry, NAS of Ukraine, Vernadskogo Blvd. 42, 03142, Kyiv, Ukraine
| | - Olena Goncharuk
- Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290, Lublin, Poland
- F.D. Ovcharenko Institute of Biocolloidal Chemistry, NAS of Ukraine, Vernadskogo Blvd. 42, 03142, Kyiv, Ukraine
| | - Yurii Samchenko
- F.D. Ovcharenko Institute of Biocolloidal Chemistry, NAS of Ukraine, Vernadskogo Blvd. 42, 03142, Kyiv, Ukraine
| | - Liudmyla Kernosenko
- F.D. Ovcharenko Institute of Biocolloidal Chemistry, NAS of Ukraine, Vernadskogo Blvd. 42, 03142, Kyiv, Ukraine
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Rodrigo MJ, Cardiel MJ, Fraile JM, Mayoral JA, Pablo LE, Garcia-Martin E. Laponite for biomedical applications: An ophthalmological perspective. Mater Today Bio 2024; 24:100935. [PMID: 38239894 PMCID: PMC10794930 DOI: 10.1016/j.mtbio.2023.100935] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/20/2023] [Accepted: 12/27/2023] [Indexed: 01/22/2024] Open
Abstract
Clay minerals have been applied in biomedicine for thousands of years. Laponite is a nanostructured synthetic clay with the capacity to retain and progressively release drugs. In recent years there has been a resurgence of interest in Laponite application in various biomedical areas. This is the first paper to review the potential biomedical applications of Laponite in ophthalmology. The introduction briefly covers the physical, chemical, rheological, and biocompatibility features of different routes of administration. After that, emphasis is placed on 1) drug delivery for antibiotics, anti-inflammatories, growth factors, other proteins, and cancer treatment; 2) bleeding prevention or treatment; and 3) tissue engineering through regenerative medicine using scaffolds in intraocular and extraocular tissue. Although most scientific research is not performed on the eye, both the findings and the new treatments resulting from that research are potentially applicable in ophthalmology since many of the drugs used are the same, the tissue evaluated in vitro or in vivo is also present in the eye, and the pathologies treated also occur in the eye. Finally, future prospects for this emerging field are discussed.
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Affiliation(s)
- Maria J. Rodrigo
- Department of Ophthalmology, Miguel Servet University Hospital, Zaragoza, Spain
- Aragon Institute for Health Research (IIS Aragon), GIMSO Research Group, University of Zaragoza (Spain), Avda. San Juan Bosco 13, E-50009 Zaragoza, Spain
| | - Maria J. Cardiel
- Aragon Institute for Health Research (IIS Aragon), GIMSO Research Group, University of Zaragoza (Spain), Avda. San Juan Bosco 13, E-50009 Zaragoza, Spain
- Department of Pathology, Lozano Blesa University Hospital, Zaragoza, Spain
| | - Jose M. Fraile
- Institute for Chemical Synthesis and Homogeneous Catalysis (ISQCH), Faculty of Sciences, University of Zaragoza–CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Jose A. Mayoral
- Institute for Chemical Synthesis and Homogeneous Catalysis (ISQCH), Faculty of Sciences, University of Zaragoza–CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Luis E. Pablo
- Department of Ophthalmology, Miguel Servet University Hospital, Zaragoza, Spain
- Aragon Institute for Health Research (IIS Aragon), GIMSO Research Group, University of Zaragoza (Spain), Avda. San Juan Bosco 13, E-50009 Zaragoza, Spain
- Biotech Vision SLP (spin-off Company), University of Zaragoza, Spain
| | - Elena Garcia-Martin
- Department of Ophthalmology, Miguel Servet University Hospital, Zaragoza, Spain
- Aragon Institute for Health Research (IIS Aragon), GIMSO Research Group, University of Zaragoza (Spain), Avda. San Juan Bosco 13, E-50009 Zaragoza, Spain
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3
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Zhivkov AM, Popov TT, Hristova SH. Composite Hydrogels with Included Solid-State Nanoparticles Bearing Anticancer Chemotherapeutics. Gels 2023; 9:gels9050421. [PMID: 37233012 DOI: 10.3390/gels9050421] [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: 03/31/2023] [Revised: 05/11/2023] [Accepted: 05/15/2023] [Indexed: 05/27/2023] Open
Abstract
Hydrogels have many useful physicochemical properties which, in combination with their biocompatibility, suggest their application as a drug delivery system for the local and prorogated release of drugs. However, their drug-absorption capacity is limited because of the gel net's poor adsorption of hydrophilic molecules and in particular, hydrophobic molecules. The absorption capacity of hydrogels can be increased with the incorporation of nanoparticles due to their huge surface area. In this review, composite hydrogels (physical, covalent and injectable) with included hydrophobic and hydrophilic nanoparticles are considered as suitable for use as carriers of anticancer chemotherapeutics. The main focus is given to the surface properties of the nanoparticles (hydrophilicity/hydrophobicity and surface electric charge) formed from metal and dielectric substances: metals (gold, silver), metal-oxides (iron, aluminum, titanium, zirconium), silicates (quartz) and carbon (graphene). The physicochemical properties of the nanoparticles are emphasized in order to assist researchers in choosing appropriate nanoparticles for the adsorption of drugs with hydrophilic and hydrophobic organic molecules.
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Affiliation(s)
- Alexandar M Zhivkov
- Institute of Physical Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 11, 1113 Sofia, Bulgaria
| | - Trifon T Popov
- Medical Faculty, Medical University-Sofia, Zdrave Str. 2, 1431 Sofia, Bulgaria
| | - Svetlana H Hristova
- Department of Medical Physics and Biophysics, Medical Faculty, Medical University-Sofia, Zdrave Str. 2, 1431 Sofia, Bulgaria
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Kernosenko L, Samchenko K, Goncharuk O, Pasmurtseva N, Poltoratska T, Siryk O, Dziuba O, Mironov O, Szewczuk-Karpisz K. Polyacrylamide Hydrogel Enriched with Amber for In Vitro Plant Rooting. PLANTS (BASEL, SWITZERLAND) 2023; 12:1196. [PMID: 36904057 PMCID: PMC10007188 DOI: 10.3390/plants12051196] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/27/2023] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
In this work, a new material for in vitro plant rooting based on highly dispersed polyacrylamide hydrogel (PAAG) enriched with amber powder was synthesized and investigated. PAAG was synthesized by homophase radical polymerization with ground amber addition. Fourier transform infrared spectroscopy (FTIR) and rheological studies were used to characterize the materials. They showed that the synthesized hydrogels have physicochemical and rheological parameters similar to those of the standard agar media. The acute toxicity of PAAG-amber was estimated based on the influence of washing water on the viability of plant seeds (pea and chickpea) and Daphnia magna. It proved its biosafety after four washes. The impact on plant rooting was studied using the propagation of Cannabis sativa on synthesized PAAG-amber and compared with agar. The developed substrate stimulated the rooting of the plants to more than 98% in comparison to standard agar medium (95%). Additionally, the use of PAAG-amber hydrogel markedly enhanced metric indicators of seedlings: root length increased by 28%, stem length-by 26.7%, root weight-by 167%, stem weight-by 67%, root and stem length-by 27%, root and stem weight-by 50%. This means that the developed hydrogel significantly accelerates reproduction and allows obtaining a larger amount of plant material within a shorter period of time than the standard agar substrate.
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Affiliation(s)
- Lyudmyla Kernosenko
- F.D. Ovcharenko Institute of Biocolloidal Chemistry, National Academy of Sciences of Ukraine, 01030 Kyiv, Ukraine
| | - Kateryna Samchenko
- Department of Bioenergy, Bioinformatics and Environmental Biotechnology, Faculty of Biotechnology and Biotechnics, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 03056 Kyiv, Ukraine
| | - Olena Goncharuk
- F.D. Ovcharenko Institute of Biocolloidal Chemistry, National Academy of Sciences of Ukraine, 01030 Kyiv, Ukraine
- Institute of Agrophysics, Polish Academy of Sciences, 20-290 Lublin, Poland
| | - Natalya Pasmurtseva
- F.D. Ovcharenko Institute of Biocolloidal Chemistry, National Academy of Sciences of Ukraine, 01030 Kyiv, Ukraine
| | - Tetiana Poltoratska
- F.D. Ovcharenko Institute of Biocolloidal Chemistry, National Academy of Sciences of Ukraine, 01030 Kyiv, Ukraine
| | - Olena Siryk
- F.D. Ovcharenko Institute of Biocolloidal Chemistry, National Academy of Sciences of Ukraine, 01030 Kyiv, Ukraine
- Institute of Agrophysics, Polish Academy of Sciences, 20-290 Lublin, Poland
| | - Oksana Dziuba
- M. M. Hryshko National Botanical Garden, National Academy of Sciences of Ukraine, 01030 Kyiv, Ukraine
| | - Oleg Mironov
- L.M. Litvinenko Institute of Physical-Organic Chemistry and Coal Chemistry, National Academy of Sciences of Ukraine, 01030 Kyiv, Ukraine
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Basina G, Diamantopoulos G, Devlin E, Psycharis V, Alhassan SM, Pissas M, Hadjipanayis G, Tomou A, Bouras A, Hadjipanayis C, Tzitzios V. LAPONITE® nanodisk-"decorated" Fe 3O 4 nanoparticles: a biocompatible nano-hybrid with ultrafast magnetic hyperthermia and MRI contrast agent ability. J Mater Chem B 2022; 10:4935-4943. [PMID: 35535802 DOI: 10.1039/d2tb00139j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Magnetic Fe3O4 nanoparticles "decorated" by LAPONITE® nanodisks have been materialized utilizing the Schikorr reaction following a facile approach and tested as mediators of heat for localized magnetic hyperthermia (MH) and as magnetic resonance imaging (MRI) agents. The synthetic protocol involves the interaction between two layered inorganic compounds, ferrous hydroxide, Fe(OH)2, and the synthetic smectite LAPONITE® clay Na0.7+[(Si8Mg5.5Li0.3)O20(OH)4]0.7-, towards the formation of superparamagnetic Fe3O4 nanoparticles, which are well decorated by the diamagnetic clay nanodisks. The latter imparts high negative ζ-potential values (up to -34.1 mV) to the particles, which provide stability against flocculation and precipitation, resulting in stable water dispersions. The obtained LAPONITE®-"decorated" Fe3O4 nanohybrids were characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), Mössbauer spectroscopy, dynamic light scattering (DLS) and vibrating sample magnetometry (VSM) at room temperature, revealing superior magnetic hyperthermia performance with specific absorption rate (SAR) values reaching 540 W gFe-1 (28 kA m-1, 150 kHz) for the hybrid material with a magnetic loading of 50 wt% Fe3O4/LAPONITE®. Toxicity studies were also performed with human glioblastoma (GBM) cells and human foreskin fibroblasts (HFF), which show negligible to no toxicity. Furthermore, T2-weighted MR imaging of rodent brain shows that the LAPONITE®-"decorated" Fe3O4 nanohybrids predominantly affected the transverse T2 relaxation time of tissue water, which resulted in a signal drop on the MRI T2-weighted imaging, allowing for imaging of the magnetic nanoparticles.
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Affiliation(s)
- Georgia Basina
- Department of Physics and Astronomy, University of Delaware, Newark, DE 19711, USA. .,Institute of Nanoscience and Nanotechnology, NCSR Demokritos, 15310, Athens, Greece.
| | - George Diamantopoulos
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, 15310, Athens, Greece.
| | - Eamonn Devlin
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, 15310, Athens, Greece.
| | - Vassilis Psycharis
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, 15310, Athens, Greece.
| | - Saeed M Alhassan
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Michael Pissas
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, 15310, Athens, Greece.
| | - George Hadjipanayis
- Department of Physics and Astronomy, University of Delaware, Newark, DE 19711, USA.
| | - Aphrodite Tomou
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, 15310, Athens, Greece. .,Goodfellow Cambridge Ltd., Ermine Business Park, Huntingdon PE29 6WR, Cambridge, UK
| | - Alexandros Bouras
- Brain Tumor Nanotechnology Laboratory, Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Constantinos Hadjipanayis
- Brain Tumor Nanotechnology Laboratory, Department of Neurosurgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Vasileios Tzitzios
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, 15310, Athens, Greece. .,Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
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Lebovka N, Goncharuk O, Klepko V, Mykhailyk V, Samchenko Y, Kernosenko L, Pasmurtseva N, Poltoratska T, Siryk O, Solovieva O, Tatochenko M. Cross-Linked Hydrogels Based on PolyNIPAAm and Acid-Activated Laponite RD: Swelling and Tunable Thermosensitivity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:5708-5716. [PMID: 35481382 DOI: 10.1021/acs.langmuir.2c00310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The effects of acid activation of Laponite RD (Lap) on the structure and properties of activated Lap nanoparticles (aLap) and the properties of polyNIPAAm hydrogels physically cross-linked by aLap have been studied. The acid activation of Lap by the sulfuric acid was done using the concentration of sulfuric acid within the interval Ca = 0.525-14.58% for 10 h. For slightly activated samples (Ca ≤ 1.25 wt %), the significant increase of the specific surface area (by ≈1.56 times) was accompanied with a significant decrease in both the values of the specific heat of immersion in water and n-decane. However, the hydrophilic properties of all samples S0-S5 were still observed. Thermogravimetric analysis (TGA) and differential thermal analysis (DTA) data, Fourier transform infrared (FTIR) spectra, and X-ray diffraction (XRD) patterns demonstrated that the acid activation resulted in the destruction of the crystal lattice of Lap, leaching of magnesium and lithium, and formation of the amorphous phases. Moreover, the acid activation significantly affected aggregation and negative surface charges of the aLap faces in aqueous suspension. The effects of aLap on the swelling properties and cooperativity in the phase transitions of polyNIPAAm hydrogels cross-linked by aLap are also discussed. It was demonstrated that an increase in Ca resulted in a significant increase in the equilibrium degree of swelling of the hydrogels and a decrease in the hydrogel phase-transition temperature from the swollen phase to the shrunken phase.
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Affiliation(s)
- Nikolai Lebovka
- Institute of Biocolloidal Chemistry named after F.D. Ovcharenko NAS of Ukraine, 42 Vernadskogo Blvd., Kyiv 03142, Ukraine
| | - Olena Goncharuk
- Institute of Biocolloidal Chemistry named after F.D. Ovcharenko NAS of Ukraine, 42 Vernadskogo Blvd., Kyiv 03142, Ukraine
| | - Valeriy Klepko
- Institute of Macromolecular Chemistry NAS of Ukraine, 48, Kharkivske road, 02160 Kiev, Ukraine
| | - Viacheslav Mykhailyk
- Institute of Engineering Thermophysics NAS of Ukraine, 2a Zhelyabova Str, Kyiv 03057, Ukraine
| | - Yurii Samchenko
- Institute of Biocolloidal Chemistry named after F.D. Ovcharenko NAS of Ukraine, 42 Vernadskogo Blvd., Kyiv 03142, Ukraine
| | - Lyudmila Kernosenko
- Institute of Biocolloidal Chemistry named after F.D. Ovcharenko NAS of Ukraine, 42 Vernadskogo Blvd., Kyiv 03142, Ukraine
| | - Natalya Pasmurtseva
- Institute of Biocolloidal Chemistry named after F.D. Ovcharenko NAS of Ukraine, 42 Vernadskogo Blvd., Kyiv 03142, Ukraine
| | - Tetiana Poltoratska
- Institute of Biocolloidal Chemistry named after F.D. Ovcharenko NAS of Ukraine, 42 Vernadskogo Blvd., Kyiv 03142, Ukraine
| | - Olena Siryk
- Institute of Biocolloidal Chemistry named after F.D. Ovcharenko NAS of Ukraine, 42 Vernadskogo Blvd., Kyiv 03142, Ukraine
| | - Olena Solovieva
- Institute of Biocolloidal Chemistry named after F.D. Ovcharenko NAS of Ukraine, 42 Vernadskogo Blvd., Kyiv 03142, Ukraine
| | - Mykhailo Tatochenko
- Institute of Biocolloidal Chemistry named after F.D. Ovcharenko NAS of Ukraine, 42 Vernadskogo Blvd., Kyiv 03142, Ukraine
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Zhai X, Ruan C, Shen J, Zheng C, Zhao X, Pan H, Lu WW. Clay-based nanocomposite hydrogel with attractive mechanical properties and sustained bioactive ion release for bone defect repair. J Mater Chem B 2021; 9:2394-2406. [PMID: 33625433 DOI: 10.1039/d1tb00184a] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Although clay-based nanocomposite hydrogels have been widely explored, their instability in hot water and saline solution inhibits their applications in biomedical engineering, and the exploration of clay-based nanocomposite hydrogels in bone defect repair is even less. In this work, we developed a stable clay-based nanocomposite hydrogel using 4-acryloylmorpholine as the monomer. After UV light illumination, the obtained poly(4-acryloylmorpholine) clay-based nanocomposite hydrogel (poly(4-acry)-clay nanocomposite hydrogel) exhibits excellent mechanical properties due to the hydrogen bond interactions between the poly(4-acryloylmorpholine) chains and the physical crosslinking effect of the nanoclay. Besides good biocompatibility, the sustainable release of intrinsic Mg2+ and Si4+ from the poly(4-acry)-clay nanocomposite hydrogel endows the system with excellent ability to promote the osteogenic differentiation of primary rat osteoblasts (ROBs) and can promote new bone formation effectively after implantation. We anticipate that these kinds of clay-based nanocomposite hydrogels with sustained release of bioactive ions will open a new avenue for the development of novel biomaterials for bone regeneration.
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Affiliation(s)
- Xinyun Zhai
- Tianjin Key Laboratory for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
| | - Changshun Ruan
- Research Center for Human Tissue and Organs Degeneration, Institute Biomedical and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
| | - Jie Shen
- Shenzhen Engineering Laboratory of Orthopaedic Regenerative Technologies, Orthopaedic Research Center, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Chuping Zheng
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease Pharmacological Group, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
| | - Xiaoli Zhao
- Research Center for Human Tissue and Organs Degeneration, Institute Biomedical and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
| | - Haobo Pan
- Research Center for Human Tissue and Organs Degeneration, Institute Biomedical and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
| | - William Weijia Lu
- Research Center for Human Tissue and Organs Degeneration, Institute Biomedical and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China. and Department of Orthopaedic and Traumatology, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong, China.
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Qu B, Xue J, Luo Y. Self-assembled caseinate-laponite® nanocomposites for curcumin delivery. Food Chem 2021; 363:130338. [PMID: 34161872 DOI: 10.1016/j.foodchem.2021.130338] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 05/12/2021] [Accepted: 06/05/2021] [Indexed: 01/10/2023]
Abstract
In this study, novel self-assembled protein-clay nanocomposites were developed for curcumin delivery. Experimentally, curcumin was dissolved and deprotonated in sodium caseinate-laponite® (NaCas-LAP) dispersion at pH 12.0 for 30 min followed by neutralization to pH = 7. Due to the pH-mediated dissociation and re-association process, curcumin was successfully encapsulated into NaCas-LAP nanocomposites. The colloidal properties and encapsulation capabilities of NaCas-LAP nanocomposites were investigated, including particle size, zeta potential, encapsulation efficiency, release profile in simulated gastrointestinal tract, as well as nanoscale morphology. The results indicated that upon neutralization, NaCas-LAP nanocomposites were re-associated into smaller particles due to strong hydrophobic interactions among NaCas, LAP and curcumin. Specifically, 0.10% curcumin loaded nanocomposites prepared with 2% NaCas and 0.5% LAP showed improved encapsulation performance (73.4%) with smaller particle size (100 nm). The as-prepared protein-clay nanocomposites hold promising potential to deliver lipophilic bioactive compounds, such as curcumin.
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Affiliation(s)
- Bai Qu
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Jingyi Xue
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Yangchao Luo
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA.
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Ling Z, Gu J, Liu W, Wang K, Huang C, Lai C, Yong Q. Actuating, shape reconstruction, and reinforcement of galactomannan-based hydrogels by coordination bonds induced metal ions capture. Int J Biol Macromol 2020; 165:2721-2730. [DOI: 10.1016/j.ijbiomac.2020.10.059] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/08/2020] [Accepted: 10/08/2020] [Indexed: 01/16/2023]
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