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Habermann S, Gerken LRH, Kociak M, Monachon C, Kissling VM, Gogos A, Herrmann IK. Cathodoluminescent and Characteristic X-Ray-Emissive Rare-Earth-Doped Core/Shell Protein Labels for Spectromicroscopic Analysis of Cell Surface Receptors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404309. [PMID: 39246186 DOI: 10.1002/smll.202404309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 08/20/2024] [Indexed: 09/10/2024]
Abstract
Understanding the localization and the interactions of biomolecules at the nanoscale and in the cellular context remains challenging. Electron microscopy (EM), unlike light-based microscopy, gives access to the cellular ultrastructure yet results in grey-scale images and averts unambiguous (co-)localization of biomolecules. Multimodal nanoparticle-based protein labels for correlative cathodoluminescence electron microscopy (CCLEM) and energy-dispersive X-ray spectromicroscopy (EDX-SM) are presented. The single-particle STEM-cathodoluminescence (CL) and characteristic X-ray emissivity of sub-20 nm lanthanide-doped nanoparticles are exploited as unique spectral fingerprints for precise label localization and identification. To maximize the nanoparticle brightness, lanthanides are incorporated in a low-phonon host lattice and separated from the environment using a passivating shell. The core/shell nanoparticles are then functionalized with either folic (terbium-doped) or caffeic acid (europium-doped). Their potential for (protein-)labeling is successfully demonstrated using HeLa cells expressing different surface receptors that bind to folic or caffeic acid, respectively. Both particle populations show single-particle CL emission along with a distinctive energy-dispersive X-ray signal, with the latter enabling color-based localization of receptors within swift imaging times well below 2 min perμ m $\umu\text{m}$ 2 while offering high resolution with a pixel size of 2.78 nm. Taken together, these results open a route to multi-color labeling based on electron spectromicroscopy.
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Affiliation(s)
- Sebastian Habermann
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, 8092, Zurich, Switzerland
- Laboratory for Particles Biology Interactions, Department Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Lukas R H Gerken
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, 8092, Zurich, Switzerland
- Laboratory for Particles Biology Interactions, Department Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Mathieu Kociak
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, Orsay, 91405, France
| | | | - Vera M Kissling
- Laboratory for Particles Biology Interactions, Department Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Alexander Gogos
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, 8092, Zurich, Switzerland
- Laboratory for Particles Biology Interactions, Department Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Inge K Herrmann
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, 8092, Zurich, Switzerland
- Laboratory for Particles Biology Interactions, Department Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
- The Ingenuity Lab, University Hospital Balgrist, Balgrist Campus, Forchstrasse 340, 8008, Zurich, Switzerland
- Faculty of Medicine, University of Zurich, Rämistrasse 74, 8006, Zurich, Switzerland
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Varghese SM, Chowdhury AR, Arnepalli DN, Ranga Rao G. Crosslinked hydrogel-derived carbons activated by trace amounts of aqueous potassium carbonate for carbon dioxide adsorption. BIORESOURCE TECHNOLOGY 2024; 403:130851. [PMID: 38782189 DOI: 10.1016/j.biortech.2024.130851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/14/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024]
Abstract
A new method for green synthesis of activated carbon using chitosan-based hydrogel precursors is reported. Chitosan-based hydrogel materials are designed to absorb trace amounts of non-toxic and non-corrosive activating agent K2CO3 from dilute aqueous solution. The K2CO3 impregnated hydrogels are further freeze-dried and converted to activated carbons with tuneable pore structure by a single-step pyrolysis. Activated carbon with highest pore volume of 0.76 cm3/g and surface area of 2026 m2/g is obtained by using K2CO3 as low as 0.23 g per gram of chitosan hydrogel. It can adsorb maximum CO2 of 4.2 mmol/g at 25 °C and 1 bar. This study demonstrates that biopolymer hydrogels impregnated with trace amounts of K2CO3 are excellent precursor materials to design high surface area carbons for CO2 capture.
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Affiliation(s)
- Soniya Mariya Varghese
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India; Department of Civil Engineering, Indian Institute of Technology Madras, Chennai 600036, India
| | - Additi Roy Chowdhury
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Dali Naidu Arnepalli
- Department of Civil Engineering, Indian Institute of Technology Madras, Chennai 600036, India.
| | - G Ranga Rao
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India.
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Singh D, Shaktawat S, Yadav SK, Verma R, Singh KR, Singh J. Chitosan-assisted self-assembly of flower-shaped ε-Fe 2O 3 nanoparticles on screen-printed carbon electrode for Impedimetric detection of Cd 2+, Pb 2+, and Hg 2+ heavy metal ions in various water samples. Int J Biol Macromol 2024; 265:130867. [PMID: 38508557 DOI: 10.1016/j.ijbiomac.2024.130867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 01/17/2024] [Accepted: 03/12/2024] [Indexed: 03/22/2024]
Abstract
This study focuses on the fabrication of a novel sensing platform on a screen-printed carbon electrode, modified by a combination of hydrothermally synthesized iron dioxide (ε-Fe2O3) nanoparticles and Chitosan (CS) biopolymer. This unique organic-inorganic hybrid material was developed for Electrochemical Impedance Spectroscopy (EIS) sensing, specifically targeting heavy metal ions that include Hg2+, Cd2+, as well as Pb2+. The investigation encompassed a comprehensive analysis of various aspects of the prepared Fe2O3 and CS/ε-Fe2O3 nanocomposites, including phase identification, determination of crystallite size, assessment of surface morphology, etc. CS/ε-Fe2O3 was drop-casted and deposited on the Screen-Printed Electrode (SPE). The resulting sensor exhibited excellent performance in the precise and selective quantification of Hg2+, Cd2+, and Pb2+ ions, with minimal interference from other substances. The fabricated sensor exhibits excellent performance as the detection range for Hg2+, Cd2+, and Pb2+ ions linearity is 2-20 μM, sensitivity, and LOD are 243 Ω/ μM cm2 and 0.191 μM, 191 Ω/μM cm2, and 0.167 μM, 879 Ω/ μM cm2, and 0.177 μM respectively. The stability of the CS/ε-Fe2O3/SPE electrode is demonstrated by checking its conductivity for up to 60 days for Hg2+, Cd2+, and Pb2+ ions. The reusability of the fabricated electrode is 14 scans, 13 scans, and 12 scans for Hg2+, Cd2+, and Pb2+ ions respectively. The findings indicate the successful development of an innovative CS/ε-Fe2O3 electrode for the EIS sensing platform. This platform demonstrates notable potential for addressing the critical need for efficient and sensitive EIS sensors capable of detecting a range of hazardous heavy metal ions, including Hg2+, Cd2+, and Pb2+.
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Affiliation(s)
- Diksha Singh
- Department of Chemistry, Institute of Sciences, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Sarita Shaktawat
- Department of Chemistry, Institute of Sciences, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Surendra K Yadav
- Department of Chemistry, Institute of Sciences, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Ranjana Verma
- Department of Physics, Institute of Sciences, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Kshitij Rb Singh
- Department of Chemistry, Institute of Sciences, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Jay Singh
- Department of Chemistry, Institute of Sciences, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India.
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Singh N, Anand SK, Sharma A, Singh S, Kakkar P, Srivastava V. Chitosan/alginate nanogel potentiate berberine uptake and enhance oxidative stress mediated apoptotic cell death in HepG2 cells. Int J Biol Macromol 2024; 257:128717. [PMID: 38081485 DOI: 10.1016/j.ijbiomac.2023.128717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 11/21/2023] [Accepted: 12/08/2023] [Indexed: 12/18/2023]
Abstract
Biopolymer-based nanoscale drug delivery systems have become a promising approach to overcome the limitations associated with conventional chemotherapeutics used for cancer treatment. Herein, we reported to develop a hydrophilic nanogel (NG) composed of Chitosan (Chi) and sodium alginate (Alg) using the ion gelation method for delivering Berberine hydrochloride (BBR), an alkaloid obtained from Berberis aristata roots. The use of different nanocarriers for BBR delivery has been reported previously, but the bioavailability of these carriers was limited due to phagocytic uptake and poor systemic delivery. The developed NG showed enhanced stability and efficient entrapment of BBR ∼92 %, resulting in a significant increase in bioavailability. The pH-dependent release behavior demonstrated sustained and effective release of ∼86 %, ∼74 % and, ∼53 % BBR at pH 5.5, 6.6, and 7.4 respectively after 72h, indicating its potential as a drug carrier. Additionally, the cellular uptake of BBR was significantly higher ∼19 % in the BBR-NG (25 μM) than in bulk BBR (100 μM), leading to enhanced ROS generation, mitochondrial depolarisation, and inhibition of cell proliferation and colony formation in HepG2 cells. In summary, the results suggest that the Chi/Alg biopolymer-based nano-formulation could be an effective approach for delivering BBR and enhancing its cellular uptake, efficacy, and cytotoxicity.
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Affiliation(s)
- Neha Singh
- CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow-226 001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Sumit Kumar Anand
- CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow-226 001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India; Department of Pathology and Translational Pathobiology, LSU Health, Shreveport, LA-71103, USA
| | - Ankita Sharma
- CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow-226 001, Uttar Pradesh, India; Department of Biotechnology, National Institute of Pharmaceutical Education and Research-Raebareli, Bijnor-Sisendi Road, Post Office Mati, Lucknow 226002, India
| | - Sukhveer Singh
- CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow-226 001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India
| | - Poonam Kakkar
- CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow-226 001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India.
| | - Vikas Srivastava
- CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow-226 001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002, India.
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Hatamiazar M, Mohammadnejad J, Khaleghi S. Chitosan-Albumin Nanocomposite as a Promising Nanocarrier for Efficient Delivery of Fluconazole Against Vaginal Candidiasis. Appl Biochem Biotechnol 2024; 196:701-716. [PMID: 37178249 DOI: 10.1007/s12010-023-04492-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2023] [Indexed: 05/15/2023]
Abstract
Currently, the high incidence of fungal infections among females has resulted in outstanding problems. Candida species is related with multidrug resistance and destitute clinical consequences. Chitosan-albumin derivatives with more stability exhibit innate antifungal and antibacterial effects that boost the activity of the drug without inflammatory impact. The stability and sustained release of Fluconazole in mucosal tissues can be ensured by encapsulating in protein/polysaccharide nanocomposites. Thus, we developed chitosan-albumin nanocomposite (CS-A) loaded with Fluconazole (Flu) antifungals against vaginal candidiasis. Various ratios of CS/Flu (1:1, 1:2, 2:1) were prepared. Thereafter, the CS-A-Flu nanocomposites were qualified and quantified using FT-IR, DLS, TEM, and SEM analytical devices, and the size range from 60 to 100 nm in diameter was attained for the synthesized nanocarriers. Afterward, the antifungal activity, biofilm reduction potency, and cell viability assay were performed for biomedical evaluation of formulations. The minimum inhibitory concentration) and minimum fungicidal concentration on Candida albicans were attained at 125 ng/μL and 150 ng/μL after treatment with a 1:2 (CS/Flu) ratio of CS-A-Flu. The biofilm reduction assay indicated that biofilm formation was between 0.05 and 0.1% for CS-A-Flu at all ratios. The MTT assay also exhibited excellent biocompatibility for samples, about 7 to 14% toxicity on human HGF normal cells. These data have indicated that CS-A-Flu would be a promising candidate against Candida albicans.
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Affiliation(s)
- Morvarid Hatamiazar
- Department of Biotechnology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, 1916893813, Iran
| | - Javad Mohammadnejad
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Sepideh Khaleghi
- Department of Biotechnology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, 1916893813, Iran.
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Rehman HU, Fornaciari B, Alves SR, Colquhoun A, de Oliveira Silva D. Diruthenium(II-III)-ibuprofen-loaded chitosan-based microparticles and nanoparticles systems: encapsulation, characterisation, anticancer activity of the nanoformulations against U87MG human glioma cells. J Microencapsul 2023; 40:549-565. [PMID: 37698449 DOI: 10.1080/02652048.2023.2258967] [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: 03/05/2023] [Accepted: 09/11/2023] [Indexed: 09/13/2023]
Abstract
The aim of this work was to investigate novel formulations containing diruthenium(II-III)-ibuprofen (RuIbp) metallodrug encapsulated into the chitosan (CT) biopolymer. Microparticles (RuIbp/CT MPs, ∼ 1 µm) were prepared by spray-drying, and RuIbp/CT-crosslinked nanoparticles (NPs) by ionic gelation (RuIbp/CT-TPP, TPP = tripolyphosphate (1), RuIbp/CT-TPP-PEG, PEG = poly(ethyleneglycol (2)) or pre-gel/polyelectrolyte complex method (RuIbp/CT-ALG, ALG = alginate (3)). Ru analysis was conducted by energy dispersive x-ray fluorescence or inductively coupled plasma atomic emission spectroscopy, and physicochemical characterisation by powder x-ray diffraction, electronic absorption and FTIR spectroscopies, electrospray ionisation mass spectrometry, thermal analysis, scanning electron, transition electron and atomic force microscopies, and dynamic light scattering. The RuIbp-loaded nanosystems exhibited encapsulation efficiency ∼ 20-37%, drug loading∼ 10-20% (w/w), hydrodynamic diameter (nm): 103.2 ± 7.9 (1), 91.7 ± 12.6 (2), 270.2 ± 58.4 (3), zeta potential (mV): +(47.7 ± 2.8) (1), +(49.2 ± 3.6) (2), -(28.2 ± 2.0) (3). Nanoformulation (1) showed the highest cytotoxicity with increased efficacy in relation to the RuIbp free metallodrug against U87MG human glioma cells.
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Affiliation(s)
- Hanif-Ur- Rehman
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, São Paulo, SP, Brazil
| | - Bárbara Fornaciari
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, São Paulo, SP, Brazil
| | - Samara R Alves
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, São Paulo, SP, Brazil
| | - Alison Colquhoun
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Denise de Oliveira Silva
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, São Paulo, SP, Brazil
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Castillo PCHD, Castro-Velázquez V, Rodríguez-González V. Adsorption and photocatalytic-conjugated activity of a chitosan-functionalized titanate coating for the removal of the drug clonazepam from drinking water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-30215-2. [PMID: 37804383 DOI: 10.1007/s11356-023-30215-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 09/27/2023] [Indexed: 10/09/2023]
Abstract
This research evaluated H2TiO7 nanotubes (TiNTs) functionalized with 1 (1TiCN), 5 (2TiCN), and 10 (3TiCN) wt.% of chitosan for the removal of clonazepam by an adsorption/photocatalysis-conjugated method. The samples were immobilized on glass, and their mechanical stability was tested by washings. The functionalization of the samples was verified by the FTIR and DRS techniques. SEM images displayed nanotubes in the samples and thickness of 4.24 μm for the 2TiCN coating. The chemical composition of the 2TiCN coating was obtained by EDS. The XRD patterns evidenced chitosan and titanate phases in the functionalized samples. Furthermore, the 2TiCN coating was evaluated in the removal of clonazepam, reaching 80.79% (4.38 and 49.64% more than the TiNT and commercial TiO2 powders, respectively) after 240 min and being 6.88% more efficient after 4 reuses than the 2TiCN powders. OH- ions were the main oxidizing species found by scavenger tests. The surface area of 2TiCN (168.6 m2/g) was 2 times higher than that of TiNTs, and its bandgap (2.95 eV) was the lowest. Therefore, the 2TiCN coating is an excellent alternative to remove clonazepam.
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Affiliation(s)
- Pável César Hernández-Del Castillo
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., SLP, 78216, San Luis Potosi, Mexico.
| | - Verónica Castro-Velázquez
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., SLP, 78216, San Luis Potosi, Mexico
| | - Vicente Rodríguez-González
- División de Materiales Avanzados, Instituto Potosino de Investigación Científica y Tecnológica A. C., SLP, 78216, San Luis Potosi, Mexico
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Ding K, You Y, Tang L, Zhang X, Qin Z, Yin X. "One-pot" preparation and adsorption performance of chitosan-based La 3+/Y 3+ dual-ion-imprinted thermosensitive hydrogel. Carbohydr Polym 2023; 316:121071. [PMID: 37321747 DOI: 10.1016/j.carbpol.2023.121071] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 05/02/2023] [Accepted: 05/26/2023] [Indexed: 06/17/2023]
Abstract
Temperature-sensitive materials are increasingly of deep interest to researchers. Ion imprinting technology is widely used in the field of metal recovery. In order to solve the problem of rare earth metal recovery, we designed a temperature-sensitive dual-imprinted hydrogel adsorption product (CDIH) with chitosan as the matrix, N-isopropylacrylamide as a thermally responsive monomer, and La3+ and Y3+ as the co-templates. The reversible thermal sensitivity and ion-imprinted structure were determined by differential scanning calorimetry, Fourier transform infrared spectrometer, Raman spectra, Thermogravimetric analysis, X-ray photoelectron spectroscopy, Scanning electron microscopy and X-ray energy spectroscopy various characterizations and analyses. The simultaneous adsorption amount of CDIH for La3+ and Y3+ was 87.04 mg/g and 90.70 mg/g, respectively. The quasi-secondary kinetic model and Freundlich isotherms model well described the adsorption mechanism of CDIH. It's worthy to mention that CDIH could be well regenerated through washing with deionized water at 20 °C, with a desorption rate of 95.29 % for La3+ and 96.03 % for Y3+. And after 10 cycles of reuse, 70 % of the adsorption amount could be maintained, revealing excellent reusability. Furthermore, CDIH expressed better adsorption selectivity to La3+ and Y3+ than its non-imprinted counterparts in a solution containing six metal ions.
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Affiliation(s)
- Kaiqi Ding
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, Hainan 570228, PR China
| | - Ying You
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, Hainan 570228, PR China
| | - Liweng Tang
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, Hainan 570228, PR China
| | - Xinyue Zhang
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, Hainan 570228, PR China
| | - Ziyu Qin
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, Hainan 570228, PR China
| | - Xueqiong Yin
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, Hainan 570228, PR China.
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Ozon EA, Iuga IDM, Mititelu M, Musuc AM, Manolescu BN, Petrescu S, Cusu JP, Rusu A, Surdu VA, Oprea E, Neacșu SM, Karampelas O, Elian V. Pharmacotechnical, Physico-Chemical, and Antioxidant Evaluation of Newly Developed Capsule Formulations. Int J Mol Sci 2023; 24:11426. [PMID: 37511185 PMCID: PMC10379583 DOI: 10.3390/ijms241411426] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
The excess of free radicals causes numerous imbalances in the body that lead to premature aging, the degradation of internal structures, and the appearance of numerous pathologies responsible for the increased risk of premature death. The present work aims to evaluate the physical, chemical, pharmacotechnical, and antioxidant activity of newly achieved capsule formulations. These two formulations were F1a.i., which contains melatonin:biotin:coenzyme Q10 (weight ratio of 1:2:60), and F2a.i., which contains quercetin:resveratrol:biotin:coenzyme Q10 (weight ratio of 10:10:1:10). The adequate selection of the excipient types and amounts for final capsule formulations (F1c.c., F2c.c.) was based on preformulation studies performed on the powders containing active ingredients. The antioxidant activity assessed using three methods (ABTS, DPPH, and FRAP) compared with acid ascorbic as a positive control demonstrated that the F2c.c. formulation possesses the strongest antioxidant capacity. The results confirmed the suitable formulation and the accurate selection of the types and amounts of active ingredients, as well as the auxiliary excipients used in newly developed capsule formulations as supplements with an excellent antioxidant effect on the human body.
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Affiliation(s)
- Emma Adriana Ozon
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania
| | - Izabela Dana Maria Iuga
- Department of Clinical Laboratory and Food Safety, Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania
| | - Magdalena Mititelu
- Department of Clinical Laboratory and Food Safety, Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania
| | - Adina Magdalena Musuc
- "Ilie Murgulescu" Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Bogdan Nicolae Manolescu
- "C. Nenitescu" Department of Organic Chemistry, Faculty of Applied Chemistry and Science of Materials, University "Politehnica" of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania
| | - Simona Petrescu
- "Ilie Murgulescu" Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Jeanina Pandele Cusu
- "Ilie Murgulescu" Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Adriana Rusu
- "Ilie Murgulescu" Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Vasile-Adrian Surdu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University "Politehnica" of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania
| | - Eliza Oprea
- Department of Microbiology, Faculty of Biology, University of Bucharest, 1-3 Portocalilor Way, 060101 Bucharest, Romania
| | | | - Oana Karampelas
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania
| | - Viviana Elian
- Department of Diabetes, Nutrition and Metabolic Diseases "Carol Davila" University of Medicine and Pharmacy, INDNBM N.C. Paulescu, 5-7 Ion Movila Street, 030167 Bucharest, Romania
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Zarharan H, Bagherian M, Shah Rokhi A, Ramezani Bajgiran R, Yousefi E, Heravian P, Niazi Khazrabig M, Es-haghi A, Taghavizadeh Yazdi ME. The anti-angiogenesis and antioxidant activity of chitosan-mediated synthesized selenium-gold nanostructure. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
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11
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Alsohaimi IH, Alhumaimess MS, Hassan HMA, Reda M, Aldawsari AM, Chen Q, Kariri MA. Chitosan Polymer Functionalized-Activated Carbon/Montmorillonite Composite for the Potential Removal of Lead Ions from Wastewater. Polymers (Basel) 2023; 15:polym15092188. [PMID: 37177334 PMCID: PMC10180836 DOI: 10.3390/polym15092188] [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: 04/22/2023] [Revised: 04/30/2023] [Accepted: 05/01/2023] [Indexed: 05/15/2023] Open
Abstract
A simple approach for synthesizing a highly adsorbent composite was described for the uptake of heavy metal ions from wastewater. A simple approach for synthesizing a highly adsorbent composite was also described for the elimination of heavy metal ions from contaminated water. The nanocomposite was synthesized via a polymer grafting of chitosan on the activated carbon surface, followed by a stacking process with the layers of montmorillonite clay. The spectroscopic analyses were exploited to confirm the composite structure of the prepared materials. Various adsorption parameters, such as pH, initial concentration, and adsorption time, were assessed. The results showed that the adsorption capacity of the composite for Pb2+ ions increased as the pH increased until it reached pH 5.5. The maximum adsorption capacity was observed at an initial Pb2+ level of 20 mg/L and a contact time of 150 min. Kinetic models were evaluated, and the pseudo second-order model showed the best match. The adsorption isotherm data were processed by fitting the model with different isotherm behaviors, and the Langmuir isotherm was found to be the most suitable for the system. The maximum adsorption capacity for Pb2+ ion on the MMT/CS/AC composite was found to be 50 mg/g at pH 5.5. Furthermore, the composite maintained a high adsorption capability of 85% for five adsorption-desorption cycles. Overall, this composite is envisioned as an addition to the market of wastewater remediation technology due to its chemical structure, which provides influential functional groups for wastewater treatment.
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Affiliation(s)
| | - Mosaed S Alhumaimess
- Chemistry Department, College of Science, Jouf University, Sakaka 2014, Saudi Arabia
| | - Hassan M A Hassan
- Chemistry Department, College of Science, Jouf University, Sakaka 2014, Saudi Arabia
| | - Mohamed Reda
- Chemistry Department, College of Science, Jouf University, Sakaka 2014, Saudi Arabia
| | - Abdullah M Aldawsari
- Department of Chemistry, College of Science and Humanities, Prince Sattam Bin Abdulaziz University, Al-kharj 11942, Saudi Arabia
| | - Qiao Chen
- Chemistry Department, School of Life Sciences, Sussex University, Brighton BN1 9QJ, UK
| | - Mohammed Abdo Kariri
- Chemistry Department, College of Science, Jouf University, Sakaka 2014, Saudi Arabia
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12
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Kurt AH, Olutas EB, Avcioglu F, Karakuş H, Sungur MA, Kara Oztabag C, Yıldırım M. Quercetin- and caffeic acid-functionalized chitosan-capped colloidal silver nanoparticles: one-pot synthesis, characterization, and anticancer and antibacterial activities. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2023; 14:362-376. [PMID: 36998241 PMCID: PMC10043739 DOI: 10.3762/bjnano.14.31] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 03/06/2023] [Indexed: 06/19/2023]
Abstract
The presented study comprises the one-pot synthesis and the characterization of quercetin- and caffeic acid-functionalized chitosan-capped colloidal silver nanoparticles (Ch/Q- and Ch/CA-Ag NPs), and their antibacterial and anticancer activities. The formation of Ch/Q- and Ch/CA-Ag NPs has been confirmed by ultraviolet-visible (UV-vis) spectroscopy, Fourier-transform infrared (FTIR) spectroscopy, and transmission electron microscopy (TEM). The characteristic surface plasmon resonance (SPR) absorption band has been found at 417 and 424 nm for Ch/Q- and Ch/CA-Ag NPs, respectively. The formation of a chitosan shell comprising quercetin and caffeic acid, which surround the colloidal core Ag NPs, was confirmed by UV-vis, and FTIR analyses, and monitored by TEM microscopy. The size of nanoparticles has been determined as 11.2 and 10.3 nm for Ch/Q- and Ch/CA-Ag, respectively. The anticancer activity of Ch/Q- and Ch/CA-Ag NPs has been evaluated against U-118 MG (human glioblastoma) and ARPE-19 (human retinal pigment epithelium) cells. Both NPs showed anticancer activity, but Ch/Q-Ag NPs seemed to be more effective on cancer cell lines (U-118 MG) in comparison to healthy ones (ARPE-19). Furthermore, the antibacterial activity of Ch/Q- and Ch/CA-Ag NPs against Gram-negative (P. aeruginosa and E. coli) and Gram-positive (S. aureus and S. epidermidis) bacteria was determined, and dose-dependent antibacterial effects were found.
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Affiliation(s)
- Akif Hakan Kurt
- Department of Medicinal Pharmacology, Faculty of Medicine, Bolu Abant Izzet Baysal University, 14030 Bolu, Türkiye
| | - Elif Berna Olutas
- Department of Chemistry, Faculty of Arts and Sciences, Bolu Abant Izzet Baysal University, 14030 Bolu, Türkiye
| | - Fatma Avcioglu
- Department of Medical Microbiology, Faculty of Medicine, Bolu Abant Izzet Baysal University, 14030 Bolu, Türkiye
| | - Hamza Karakuş
- Technology Transfer Application and Research Center, Bolu Abant Izzet Baysal University, 14030 Bolu, Türkiye
| | - Mehmet Ali Sungur
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Duzce University, 81620 Duzce, Türkiye
| | - Cansu Kara Oztabag
- Department of Interdisciplinary Neuroscience, Graduate Education Institute, Bolu Abant Izzet Baysal University, 14030 Bolu, Türkiye
| | - Muhammet Yıldırım
- Department of Chemistry, Faculty of Arts and Sciences, Bolu Abant Izzet Baysal University, 14030 Bolu, Türkiye
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13
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Eivazzadeh-Keihan R, Pajoum Z, Aliabadi HAM, Mohammadi A, Kashtiaray A, Bani MS, Pishva B, Maleki A, Heravi MM, Mahdavi M, Ziaei Ziabari E. Magnetized chitosan hydrogel and silk fibroin, reinforced with PVA: a novel nanobiocomposite for biomedical and hyperthermia applications. RSC Adv 2023; 13:8540-8550. [PMID: 36926298 PMCID: PMC10012334 DOI: 10.1039/d3ra00612c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 03/06/2023] [Indexed: 03/15/2023] Open
Abstract
Herein, a multifunctional nanobiocomposite was designed for biological application, amongst which hyperthermia cancer therapy application was specifically investigated. This nanobiocomposite was fabricated based on chitosan hydrogel (CS), silk fibroin (SF), water-soluble polymer polyvinyl alcohol (PVA) and iron oxide magnetic nanoparticles (Fe3O4 MNPs). CS and SF as natural compounds were used to improve the biocompatibility, biodegradability, adhesion and cell growth properties of the nanobiocomposite that can prepare this nanocomposite for the other biological applications such as wound healing and tissue engineering. Since the mechanical properties are very important in biological applications, PVA polymer was used to increase the mechanical properties of the prepared nanobiocomposite. All components of this nanobiocomposite have good dispersion in water due to the presence of hydrophilic groups such as NH2, OH, and COOH, which is one of the effective factors in increasing the efficiency of hyperthermia cancer therapy. The structural analyzes of the hybrid nanobiocomposite were determined by FT-IR, XRD, EDX, FE-SEM, TGA and VSM. Biological studies such as MTT and hemolysis testing proved that it is hemocompatible and non-toxic for healthy cells. Furthermore, it can cause the death of cancer cells to some extent (20.23%). The ability of the nanobiocomposites in hyperthermia cancer therapy was evaluated. Also, the results showed that it can be introduced as an excellent candidate for hyperthermia cancer therapy.
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Affiliation(s)
- Reza Eivazzadeh-Keihan
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology Tehran 16846-13114 Iran +98-21-73021584 +98-21-73228313
| | - Zeinab Pajoum
- Department of Chemistry, School of Physics and Chemistry, Alzahra University PO Box 1993891176, Vanak Tehran Iran
| | | | - Adibeh Mohammadi
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology Tehran 16846-13114 Iran +98-21-73021584 +98-21-73228313
| | - Amir Kashtiaray
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology Tehran 16846-13114 Iran +98-21-73021584 +98-21-73228313
| | - Milad Salimi Bani
- Department of Biomedical Engineering, Faculty of Engineering, University of Isfahan Isfahan Iran
| | - Banafshe Pishva
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology Tehran 16846-13114 Iran +98-21-73021584 +98-21-73228313
| | - Ali Maleki
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology Tehran 16846-13114 Iran +98-21-73021584 +98-21-73228313
| | - Majid M Heravi
- Department of Chemistry, School of Physics and Chemistry, Alzahra University PO Box 1993891176, Vanak Tehran Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences Tehran Iran
| | - Elaheh Ziaei Ziabari
- Department of Orthopedic Surgery, Rothman Institute, Thomas Jefferson University 125 South 9th Street, Suite 1000 Philadelphia PA 19107 USA
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14
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Silver-ruthenium bimetallic nanoparticles as sacrificial heterogeneous persulfate activator in situ chemical oxidation of dye. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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15
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Bose N, Rajappan K, Selvam S, Natesan G, Danagody B. CeO 2@PU sandwiched in chitosan and cellulose acetate layer as Cs-CeO 2@PU-CA triple-layered membrane for chromium removal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:42679-42696. [PMID: 35902527 DOI: 10.1007/s11356-022-22078-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 07/13/2022] [Indexed: 06/15/2023]
Abstract
The single or blended polymer membrane lacks a few advantages based on the durability of the membrane. The novel triple-layered sandwich membrane Cs-CeO2@PU-CA membrane is cast through the phase inversion technique for chromium removal. This approach involves an arrangement of the top layer as chitosan which acts as a protective layer, and the sandwich layer of CeO2@PU membrane which acts as source for stability, and a supportive layer of cellulose acetate is arranged accordingly. The incorporation of cerium oxide nanoparticles into the polyurethane can create pores on the surface of the membrane due to the high aspect ratio of cerium oxide. The triple-layered arrangement shows higher porosity via water contact angle, the network of pores present on the membrane which is visible through morphology, and also the intermediate sandwich layer CeO2@PU provided with better mechanical strength which would be significant for changes achieved in adsorption technique. The batch adsorption was carried out with various ppm of Cr(VI) solution. The effect of pH, contact time, initial concentration, and temperature were analyzed and optimized for determining efficiency of chromium removal. Furthermore, the suitable adsorption isotherm and kinetics of the system were also determined for better fit via Langmuir, Freundlich, Temkin, and Sips along with pseudo-first-order and pseudo-second-order. The efficiency in adsorption is due to the prominent presence of hydroxyl, carboxyl, and hydrophilic group in the prepared membrane. Thus, the resultant prepared membrane can act as a potential chromium removal substrate.
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Affiliation(s)
- Neeraja Bose
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, 603203, India
| | - Kalaivizhi Rajappan
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, 603203, India.
| | - Sivasankari Selvam
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, 603203, India
| | - Gowriboy Natesan
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, 603203, India
| | - Balaganesh Danagody
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, 603203, India
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Zhang L, Li X, Chen S, Guan J, Guo Y, Yu W. 3D chitosan/GO/ZnO hydrogel with enhanced photocorrosion-resistance and adsorption for efficient removal of typical water-soluble pollutants. CATAL COMMUN 2023. [DOI: 10.1016/j.catcom.2023.106627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
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17
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Chen M, Murphy BB, Wang Y, Vitale F, Yang S. SMART Silly Putty: Stretchable, Malleable, Adherable, Reusable, and Tear-Resistible Hydrogels. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205854. [PMID: 36433864 DOI: 10.1002/smll.202205854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Indexed: 06/16/2023]
Abstract
Cell engineering, soft robotics, and wearable electronics often desire soft materials that are easy to deform, self-heal readily, and can relax stress rapidly. Hydrogels, a type of hydrophilic networks, are such kind of materials that can be made responsive to environmental stimuli. However, conventional hydrogels often suffer from poor stretchability and repairability. Here, hydrogels consisting of boronic ester dynamic covalent bonds in a double network of poly(vinyl alcohol)/boric acid and chitosan are synthesized, which demonstrate extreme stretchability (up to 310 times the original length), instant self-healing (within 5 s), and reusability and inherent adhesion. Their instant stress relaxation stems from a low activation energy of the boronic ester bond exchange (≤20 kJ mol-1 ) and contributes to the extreme stretchability and self-healing behaviors. Various water-dispersible additives can be readily incorporated in the hydrogels via hand kneading for potential applications such as soft electronics, bio-signal sensing, and soft artificial joints.
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Affiliation(s)
- Mingtao Chen
- Materials Science and Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, PA, 19104, USA
| | - Brendan B Murphy
- Departments of Neurology, Bioengineering, Physical Medicine and Rehabilitation, University of Pennsylvania, 3400 Spruce St Ste 3 W, Philadelphia, PA, 19104, USA
- Center for Neurotrauma, Neurodegeneration and Restoration, Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA, 19104, USA
| | - Yuchen Wang
- Materials Science and Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, PA, 19104, USA
| | - Flavia Vitale
- Departments of Neurology, Bioengineering, Physical Medicine and Rehabilitation, University of Pennsylvania, 3400 Spruce St Ste 3 W, Philadelphia, PA, 19104, USA
- Center for Neurotrauma, Neurodegeneration and Restoration, Corporal Michael J. Crescenz Veterans Affairs Medical Center, Philadelphia, PA, 19104, USA
| | - Shu Yang
- Materials Science and Engineering, University of Pennsylvania, 3231 Walnut Street, Philadelphia, PA, 19104, USA
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18
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Talukdar H, Saikia G, Das A, Sultana SY, Islam NS. Organic-Solvent-Free Oxidation of Styrene, Phenol and Sulfides with H2O2 over Eco-Friendly Niobium and Tantalum Based Heterogeneous Catalysts. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.01.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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19
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Charoonsuk T, Supansomboon S, Pakawanit P, Vittayakorn W, Pongampai S, Woramongkolchai S, Vittayakorn N. Simple enhanced charge density of chitosan film by the embedded ion method for the flexible triboelectric nanogenerator. Carbohydr Polym 2022; 297:120070. [DOI: 10.1016/j.carbpol.2022.120070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/29/2022] [Accepted: 09/01/2022] [Indexed: 11/26/2022]
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20
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Li X, Feng SS, Wei YX, Dong WK. An investigation of a relatively rigid acyclic salamo-type ligand and its square planar Cu(II) complex. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2123738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Xun Li
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, PR China
| | - Shan-Shan Feng
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, PR China
| | - Yu-Xin Wei
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, PR China
| | - Wen-Kui Dong
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, PR China
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Divya K, Sri Abirami Saraswathi MS, Nagendran A, Rana D. Sulfonated Chitosan and
HKUST
‐1 metal organic frameworks based hybrid membranes for direct methanol fuel cell applications. J Appl Polym Sci 2022. [DOI: 10.1002/app.52829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kumar Divya
- Polymeric Materials Research Lab, PG & Research Department of Chemistry Alagappa Government Arts College Karaikudi India
| | | | - Alagumalai Nagendran
- Polymeric Materials Research Lab, PG & Research Department of Chemistry Alagappa Government Arts College Karaikudi India
| | - Dipak Rana
- Department of Chemical and Biological Engineering University of Ottawa Ottawa Ontario Canada
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22
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Polymeric Nanosystems Applied for Metal-Based Drugs and Photosensitizers Delivery: The State of the Art and Recent Advancements. Pharmaceutics 2022; 14:pharmaceutics14071506. [PMID: 35890401 PMCID: PMC9320085 DOI: 10.3390/pharmaceutics14071506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/03/2022] [Accepted: 07/12/2022] [Indexed: 11/17/2022] Open
Abstract
Nanotechnology-based approaches for targeting the delivery and controlled release of metal-based therapeutic agents have revealed significant potential as tools for enhancing the therapeutic effect of metal-based agents and minimizing their systemic toxicities. In this context, a series of polymer-based nanosized systems designed to physically load or covalently conjugate metal-based therapeutic agents have been remarkably improving their bioavailability and anticancer efficacy. Initially, the polymeric nanocarriers were applied for platinum-based chemotherapeutic agents resulting in some nanoformulations currently in clinical tests and even in medical applications. At present, these nanoassemblies have been slowly expanding for nonplatinum-containing metal-based chemotherapeutic agents. Interestingly, for metal-based photosensitizers (PS) applied in photodynamic therapy (PDT), especially for cancer treatment, strategies employing polymeric nanocarriers have been investigated for almost 30 years. In this review, we address the polymeric nanocarrier-assisted metal-based therapeutics agent delivery systems with a specific focus on non-platinum systems; we explore some biological and physicochemical aspects of the polymer–metallodrug assembly. Finally, we summarize some recent advances in polymeric nanosystems coupled with metal-based compounds that present potential for successful clinical applications as chemotherapeutic or photosensitizing agents. We hope this review can provide a fertile ground for the innovative design of polymeric nanosystems for targeting the delivery and controlled release of metal-containing therapeutic agents.
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Targeted and biocompatible NMOF as efficient nanocomposite for delivery of methotrexate to colon cancer cells. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Bensouiki S, Belaib F, Sindt M, Rup-Jacques S, Magri P, Ikhlef A, Meniai AH. Synthesis of cyclodextrins-metronidazole inclusion complexes and incorporation of metronidazole - 2-hydroxypropyl-β-cyclodextrin inclusion complex in chitosan nanoparticles. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131298] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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Comparative Study of Chitosan and Oligochitosan Coatings on Mucoadhesion of Curcumin Nanosuspensions. Pharmaceutics 2021; 13:pharmaceutics13122154. [PMID: 34959433 PMCID: PMC8703452 DOI: 10.3390/pharmaceutics13122154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/15/2021] [Accepted: 12/07/2021] [Indexed: 11/16/2022] Open
Abstract
Curcumin nanosuspensions (Cur-NSs), chitosan-coated Cur-NSs (CS-Cur-NSs), and oligochitosan-coated Cur-NSs (OCS-Cur-NSs) were prepared by using an ultrasonic homogenization technique. The mean particle size of Cur-NSs was 210.9 nm and significantly (p < 0.05) increased to 368.8 nm by CS coating and decreased to 172.8 nm by OCS coating. Encapsulation efficiencies of Cur-NSs, CS-Cur-NSs, and OCS-Cur-NSs were 80.6%, 91.4%, and 88.5%, respectively. The mucin adsorption of Cur-NSs was steeply increased about 3–4 times by CS and OCS coating. Morphological changes of these NSs were studied using circular dichroism spectroscopy, Fourier-transform infrared (FT-IR) spectroscopy, and transmission electron microscopy (TEM). Thus, CS-Cur-NSs and OCS-Cur-NSs showed great potential as mucoadhesive nano-carriers for the efficient delivery of water insoluble compounds like curcumin to the gastrointestinal system.
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Kasinathan K, Marimuthu K, Murugesan B, Sathaiah M, Subramanian P, Sivakumar P, Swaminathan U, Subbiah R. Fabrication of eco-friendly chitosan functionalized few-layered WS 2 nanocomposite implanted with ruthenium nanoparticles for in vitro antibacterial and anticancer activity: Synthesis, characterization, and pharmaceutical applications. Int J Biol Macromol 2021; 190:520-532. [PMID: 34480908 DOI: 10.1016/j.ijbiomac.2021.08.153] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 08/16/2021] [Accepted: 08/18/2021] [Indexed: 10/20/2022]
Abstract
The abundance of two-dimensional (2D) components has provided them with a broad material platform for building nano and atomic-level applications. So, 2D nanomaterials are unique because of their physicochemical properties. Over many years, graphene is a conventional 2D layered element that has significant attention in the scientific community. In recent years numerous new 2D nanomaterials other than graphene have been reported. The study of 2D nanomaterials is also in its infant stages, with the majority of research focusing on the explanation of special material properties, but very few articles are focusing on the biological applications of 2D nanomaterials. As a result, we focused on the transition metal dichalcogenides (TMDCs) such as MoS2 and WS2, which were emerging and exciting groups of elements with display great opportunities in several fields, such as cancer nanomedicine. Herein, we synthesized biologically active CS/WS2/Ru composite by liquid exfoliation approach. The CS/WS2/Ru composites exhibit significant antibacterial action towards (S. aureus, and E. coli) bacteria. Also, the composite suggests synergetic anticancer action against MCF-7 cancer cells. These reports are possible to explore the innovative aspects of biological outcomes in carcinological applications.
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Affiliation(s)
- Kasirajan Kasinathan
- Thin Film and Nanoscience Research Lab, PG and Research Department of Physics, Alagappa Government Arts College, Karaikudi 630 003, India
| | - Karunakaran Marimuthu
- Thin Film and Nanoscience Research Lab, PG and Research Department of Physics, Alagappa Government Arts College, Karaikudi 630 003, India.
| | - Balaji Murugesan
- Advanced Green Chemistry Lab, Department of Industrial Chemistry, School of Chemical Sciences, Alagappa University, Karaikudi 630 003, Tamil Nadu, India
| | - Maheswari Sathaiah
- Thin Film and Nanoscience Research Lab, PG and Research Department of Physics, Alagappa Government Arts College, Karaikudi 630 003, India
| | - Palanisamy Subramanian
- East Coast Research Institute of Life Science, Gangneung-Wonju National University, 120, Gangneung, Gangwon 210-702, Republic of Korea
| | - Prabakaran Sivakumar
- Thin Film and Nanoscience Research Lab, PG and Research Department of Physics, Alagappa Government Arts College, Karaikudi 630 003, India
| | - Usha Swaminathan
- Thin Film and Nanoscience Research Lab, PG and Research Department of Physics, Alagappa Government Arts College, Karaikudi 630 003, India
| | - Rajalakshmi Subbiah
- Thin Film and Nanoscience Research Lab, PG and Research Department of Physics, Alagappa Government Arts College, Karaikudi 630 003, India
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27
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Guo Y, Dundas CM, Zhou X, Johnston KP, Yu G. Molecular Engineering of Hydrogels for Rapid Water Disinfection and Sustainable Solar Vapor Generation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2102994. [PMID: 34292641 DOI: 10.1002/adma.202102994] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Indexed: 06/13/2023]
Abstract
Consumption of unsafe water is a major cause of morbidity and mortality in developing regions. Pasteurizing or boiling water to remove pathogens is energy-intensive and often impractical to off-grid communities. Therefore, low capital cost, rapid and energy-efficient water disinfection methods are urgently required to address global challenges of safe water access. Here, anti-bacterial hydrogels (ABHs) with catechol-enabled molecular-level hydrogen peroxide generators and quinone-anchored activated carbon particles are designed for effective water treatment. The bactericidal effect is attributed to the synergy of hydrogen peroxide and quinone groups to attack essential cell components and disturb bacterial metabolism. ABHs can be directly used as tablets to achieve >99.999% water disinfection efficiency within 60 min without energy input. No harmful byproducts are formed during the treatment process, after which the ABH tablets can be easily removed without residues. Taking advantage of their excellent photothermal and biofouling-resistant properties, ABHs can also be applied as solar evaporators to achieve stable water purification under sunlight (≤1 kW m-2 ) after months of storage and operation in bacteria-containing river water. The ABH platform offers reduced energy and chemical demands for point-of-use water treatment technologies in remote areas and emergency rescue applications.
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Affiliation(s)
- Youhong Guo
- Materials Science and Engineering Program and Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Christopher M Dundas
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Xingyi Zhou
- Materials Science and Engineering Program and Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Keith P Johnston
- McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Guihua Yu
- Materials Science and Engineering Program and Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
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Zia J, Riaz U, Aazam ES. Synthesis and characterization of chitosan-supported Fe 2O 3 nanohybrids for rapid sonophotocatalytic degradation of 2,4,6-trichlorophenol. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:49541-49549. [PMID: 33934307 DOI: 10.1007/s11356-021-14094-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 04/20/2021] [Indexed: 06/12/2023]
Abstract
The present study reports the design of heterogeneous photocatalytic system using Fe2O3 with chitosan (CS) as a matrix for the sonophotocatalytic degradation of 2,4,6-trichlorophenol (2,4,6-TCP). CS was chosen as a polymer matrix as it is abundant in nature, eco-friendly, and can be easily processed into microparticles, nanofibers, as well as nanoparticles and shows the tendency of adhesion towards a vast range of solid substrates besides serving as a chelating agent toward metallic oxides. The nanohybrids were characterized via Fourier transformation infrared spectrum (FT-IR), X-ray diffraction (XRD), scanning electron microscopy coupled with electron dispersive spectrum (SEM-EDS), thermogravimetric analysis (TGA), and UV-visible diffuse reflectance (UV-Vis-DRS) analyses. Infrared spectroscopy (IR) studies confirmed synergistic interaction between Fe2O3 and CS. The XRD measurements confirmed the crystalline morphology while SEM revealed formation of rod-like structures. The TGA studies confirmed higher thermal stability of CS/Fe2O3 as compared to pure CS. The optical band gap for CS and CS/Fe2O3 was calculated to be 3 eV and 2.25 eV, respectively, from diffuse reflectance spectral (DRS) studies. Rapid photocatalytic degradation of 2,4,6-TCP was observed under UV light irradiation in presence of CS and CS/Fe2O3 nanohybrids which revealed 83.19% and 95.20% degradation within a short span of 60 min. The degraded fragments were identified using liquid chromatography-mass spectrometry (LC-MS). The present study on the development of ecofriendly nanohybrid photocatalyst is expected to provide experimental basis for the future development of CS-based photocatalysts which can be easily processed into membranes/filters for the industrial scale degradation of toxic organic pollutants.
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Affiliation(s)
- Jannatun Zia
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India
| | - Ufana Riaz
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India.
| | - Elham S Aazam
- Chemistry Department, Faculty of Science, King Abdul Aziz University, Jeddah, 23622, Saudi Arabia
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29
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Dobaj Štiglic A, Kargl R, Beaumont M, Strauss C, Makuc D, Egger D, Plavec J, Rojas OJ, Stana Kleinschek K, Mohan T. Influence of Charge and Heat on the Mechanical Properties of Scaffolds from Ionic Complexation of Chitosan and Carboxymethyl Cellulose. ACS Biomater Sci Eng 2021; 7:3618-3632. [PMID: 34264634 PMCID: PMC8396805 DOI: 10.1021/acsbiomaterials.1c00534] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 06/29/2021] [Indexed: 11/29/2022]
Abstract
As one of the most abundant, multifunctional biological polymers, polysaccharides are considered promising materials to prepare tissue engineering scaffolds. When properly designed, wetted porous scaffolds can have biomechanics similar to living tissue and provide suitable fluid transport, both of which are key features for in vitro and in vivo tissue growth. They can further mimic the components and function of glycosaminoglycans found in the extracellular matrix of tissues. In this study, we investigate scaffolds formed by charge complexation between anionic carboxymethyl cellulose and cationic protonated chitosan under well-controlled conditions. Freeze-drying and dehydrothermal heat treatment were then used to obtain porous materials with exceptional, unprecendent mechanical properties and dimensional long-term stability in cell growth media. We investigated how complexation conditions, charge ratio, and heat treatment significantly influence the resulting fluid uptake and biomechanics. Surprisingly, materials with high compressive strength, high elastic modulus, and significant shape recovery are obtained under certain conditions. We address this mostly to a balanced charge ratio and the formation of covalent amide bonds between the polymers without the use of additional cross-linkers. The scaffolds promoted clustered cell adhesion and showed no cytotoxic effects as assessed by cell viability assay and live/dead staining with human adipose tissue-derived mesenchymal stem cells. We suggest that similar scaffolds or biomaterials comprising other polysaccharides have a large potential for cartilage tissue engineering and that elucidating the reason for the observed peculiar biomechanics can stimulate further research.
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Affiliation(s)
- Andreja Dobaj Štiglic
- Laboratory
for Characterization and Processing of Polymers, Faculty of Mechanical
Engineering, University of Maribor, Smetanova Ulica 17, 2000 Maribor, Slovenia
| | - Rupert Kargl
- Laboratory
for Characterization and Processing of Polymers, Faculty of Mechanical
Engineering, University of Maribor, Smetanova Ulica 17, 2000 Maribor, Slovenia
- Institute
of Automation, Faculty of Electrical Engineering and Computer Science, University of Maribor, Koroska cesta 46, 2000 Maribor, Slovenia
- Institute
of Chemistry and Technology of Biobased System (IBioSys), Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Marco Beaumont
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, Espoo 00076, Finland
| | - Christine Strauss
- Department
of Biotechnology, University of Natural
Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Damjan Makuc
- Slovenian
NMR Center, National Institute of Chemistry, Hajdrihova 19, 1001 Ljubljana, Slovenia
| | - Dominik Egger
- Department
of Biotechnology, University of Natural
Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Janez Plavec
- Slovenian
NMR Center, National Institute of Chemistry, Hajdrihova 19, 1001 Ljubljana, Slovenia
- EN→FIST
Center of Excellence, Trg OF 13, SI-1000 Ljubljana, Slovenia
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna
pot 113, 1000 Ljubljana, Slovenia
| | - Orlando J. Rojas
- Department
of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, Espoo 00076, Finland
- Departments
of Chemical and Biological Engineering, Chemistry, and Wood Science,
Bioproducts Institute, University of British
Columbia, 2360 East Mall, Vancouver, British Columbia V6T 1Z4, Canada
| | - Karin Stana Kleinschek
- Institute
of Automation, Faculty of Electrical Engineering and Computer Science, University of Maribor, Koroska cesta 46, 2000 Maribor, Slovenia
- Institute
of Chemistry and Technology of Biobased System (IBioSys), Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Tamilselvan Mohan
- Institute
of Chemistry and Technology of Biobased System (IBioSys), Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
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30
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Design and fabrication of low potential NADH-sensor based on poly(caffeic acid)@multi-walled carbon nanotubes. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138384] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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31
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Gou Y, Huang G, Li J, Yang F, Liang H. Versatile delivery systems for non-platinum metal-based anticancer therapeutic agents. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213975] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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32
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Taheri M. WITHDRAWN: Dicationic ionic liquid-phosphotungstate cross-linked immobilized on chitosan as hybrid catalyst for solvent-free cyclohexane oxidation using molecular oxygen. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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33
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Han Q, Huang L, Luo Q, Wang Y, Wu M, Sun S, Zhang H, Wang Y. Synthesis and biological evaluation of biotin-conjugated Portulaca oleracea polysaccharides. RSC Adv 2021; 11:18084-18092. [PMID: 35480215 PMCID: PMC9033186 DOI: 10.1039/d1ra02226a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 05/11/2021] [Indexed: 12/27/2022] Open
Abstract
Biotinylated Portulaca oleracea polysaccharide (Bio-POP) conjugates were successfully prepared by the esterification reaction. The biotinylated polysaccharide products were an off-white powder with an average degree of substitution of 42.5%. After grafting biotin onto POP, the thermal stability of Bio-POP conjugates was much higher than that of POP and the surface topography of Bio-POP was a loose and porous cross-linked structure. The cytotoxicity assay in vitro demonstrated that POP, biotin, and Bio-POP conjugates exhibited different cytotoxicity to HeLa, MCF-7, LO-2, and A549, in particular POP inhibited the growth of the A549 cell line more than other cell lines. The nuclear staining method demonstrated that Bio-POP conjugates can interfere with the apoptosis of A549 cells to some extent and the immunofluorescence staining photograph illustrated that Bio-POP conjugates induced A549 cells to exhibit immune activity. Therefore, the combination of biotin and Portulaca oleracea polysaccharides had immune synergistic therapeutic effects on A549 cells and can be applied in the field of anti-tumor conjugate drugs.
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Affiliation(s)
- Qianqian Han
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University Yancheng City Jiangsu Province 224051 People's Republic of China
- Chemistry and Chemical Engineering, Nanjing University of Technology Nanjing City Jiangsu Province 210009 People's Republic of China
| | - Lirong Huang
- Cardio-Thoracic Surgery, Yancheng First People's Hospital Yancheng 224006 China
| | - Qiang Luo
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University Yancheng City Jiangsu Province 224051 People's Republic of China
- Chemistry and Chemical Engineering, Nanjing University of Technology Nanjing City Jiangsu Province 210009 People's Republic of China
| | - Ying Wang
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University Yancheng City Jiangsu Province 224051 People's Republic of China
- Chemistry and Chemical Engineering, Nanjing University of Technology Nanjing City Jiangsu Province 210009 People's Republic of China
| | - Mingliang Wu
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University Yancheng City Jiangsu Province 224051 People's Republic of China
| | - Shixin Sun
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University Yancheng City Jiangsu Province 224051 People's Republic of China
| | - Hongmei Zhang
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University Yancheng City Jiangsu Province 224051 People's Republic of China
| | - Yanqing Wang
- Institute of Environmental Toxicology and Environmental Ecology, Yancheng Teachers University Yancheng City Jiangsu Province 224051 People's Republic of China
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34
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Antimicrobial and Wound Healing Properties of FeO Fabricated Chitosan/PVA Nanocomposite Sponge. Antibiotics (Basel) 2021; 10:antibiotics10050524. [PMID: 34063621 PMCID: PMC8147619 DOI: 10.3390/antibiotics10050524] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 04/28/2021] [Accepted: 04/30/2021] [Indexed: 12/13/2022] Open
Abstract
Diabetic and anemia-associated diabetic wounds increase the considerable morbidity and mortality in people, as reported by clinical studies. However, no anemia-associated diabetic wound dressing materials have been developed until now. Hence, this study aimed to develop a nanocomposite scaffold composed of chitosan (CS), poly (vinyl alcohol) (PVA), and phytogenic iron oxide nanoparticles (FeO NPs), for accelerated anemia-associated diabetic wound healing. The aqueous leaves extract of Pinus densiflora (PD) was utilized for the synthesis of iron oxide nanoparticles (FeO NPs). TEM and elemental analysis confirmed smaller size PD-FeO NPs (<50 nm) synthesis with the combination of iron and oxide. In addition, in vitro biological studies displayed the moderate antioxidant, antidiabetic activities, and considerable antibacterial activity of PD-FeO NPs. Further, the different concentrations of PD-FeO NPs (0.01, 0.03, and 0.05%) incorporated CS/PVA nanocomposites sponges were developed by the freeze-drying method. The porous structured morphology and the presence of PD-FeO NPs were observed under FE-SEM. Among nanocomposite sponges, PD-FeO NPs (0.01%) incorporated CS/PVA sponges were further chosen for the in vitro wound-healing assay, based on the porous and water sorption nature. Furthermore, the in vitro wound-healing assay revealed that PD-FeO NPs (0.01%) incorporated CS/PVA has significantly increased the cell proliferation in HEK293 cells. In conclusion, the CS/PVA-PD-FeO NPs (0.01%) sponge would be recommended for diabetic wound dressing after a detailed in vivo evaluation.
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35
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Shirolkar MM, Athavale R, Ravindran S, Rale V, Kulkarni A, Deokar R. Antibiotics functionalization intervened morphological, chemical and electronic modifications in chitosan nanoparticles. ACTA ACUST UNITED AC 2021. [DOI: 10.1016/j.nanoso.2020.100657] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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36
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Synthesis of Ag@Au core-shell NPs loaded with Ciprofloxacin as enhanced antimicrobial properties for the treatment and nursing care of Escherichia coli infection. Microb Pathog 2020; 150:104619. [PMID: 33212196 DOI: 10.1016/j.micpath.2020.104619] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 11/01/2020] [Accepted: 11/06/2020] [Indexed: 11/22/2022]
Abstract
Bimetallic nanoparticles act as a multi-functional platform because of extraordinary properties that are most capable materials for biological applications. The present study reports the improvement of Au@ Ag-core shell nanoparticles filled in as seeds for ceaseless affidavit of silver molecules on its chitosan surface. The FT-IR spectrum techniques used to identify stretching vibrations of prepared NPs. The X-ray diffraction (XRD) outcomes show the medium crystalline shape and size of the Ag@Au loaded chitosan was around at 30 nm. The morphological structure of nanoparticles (NPs) was proved by Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM). The Ag@Au contained chitosan results displayed the most elevated zone of hindrance 24 mm and lowest value 0.2 μg/mL of MIC against E. coli and treated with ciprofloxacin. The excellent antimicrobial results proven that the Ag@Au loaded chitosan can enhance the antibacterial activity. The combined Ag@Au core-shell NPs were intricately performed for cytotoxicity against human bosom malignant growth (MCF7) and cervical (HeLa) anticancer cell lines. The Ag@Au NPs may have incredible potential as viable antibacterial operators for pathogen control in clinics and nourishment preparing.
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37
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Oliveira KSGC, Veroli AB, Ruotolo LAM. Using modulated current for energy minimization in the electrochemical treatment of effluents containing organic pollutants. JOURNAL OF HAZARDOUS MATERIALS 2020; 399:123053. [PMID: 32516650 DOI: 10.1016/j.jhazmat.2020.123053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/25/2020] [Accepted: 05/25/2020] [Indexed: 06/11/2023]
Abstract
Anodic oxidation of recalcitrant organic compounds suffers from loss of efficiency as the concentration decreases, leading to high energy consumption. Here, we propose a modulated current (MC) technique to control and maintain the applied current as close as possible to its limiting value throughout the electrolysis, thus ensuring high mineralization current efficiency. The efficacy of this technique was first validated for caffeic acid (CA) electrooxidation using a boron-doped diamond (BDD) anode and was then confirmed for the degradation of a wastewater containing phenolic compounds from wet coffee processing. Combining MC and constant current (CC) operation for CA electrolysis resulted in a substantial reduction of the specific energy consumption from 256 to 52.4 kWh kg-1 TOC, due to improvement of the mineralization current efficiency from 17.9 to 77.1%. The MC+CC technique was also successful in reducing the energy consumption for a real coffee processing wastewater mineralization, demonstrating its suitability as a simple and effective tool that can be used to reduce the energy costs in electrochemical treatment of effluents containing organic pollutants.
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Affiliation(s)
- K S G C Oliveira
- Federal University of São Carlos, Department of Chemical Engineering, Rod. Washington Luiz, km 235, 13565-905, São Carlos, SP, Brazil
| | - A B Veroli
- Federal University of São Carlos, Department of Chemical Engineering, Rod. Washington Luiz, km 235, 13565-905, São Carlos, SP, Brazil
| | - L A M Ruotolo
- Federal University of São Carlos, Department of Chemical Engineering, Rod. Washington Luiz, km 235, 13565-905, São Carlos, SP, Brazil.
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38
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Yu F, Zhu Y, Liu Y, Qiu G, Shang X, Meng T, Yuan H, Hu F. Poly-γ-glutamic acid derived nanopolyplexes for up-regulation of gamma-glutamyl transpeptidase to augment tumor active targeting and enhance synergistic antitumor therapy by regulating intracellular redox homeostasis. Biomater Sci 2020; 8:5955-5968. [PMID: 32966382 DOI: 10.1039/d0bm01254h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The active targeting strategy has achieved inspiring progress for drug accumulation in tumor therapy; however, the insufficient expression level of many potential receptors poses challenges for drug delivery. Poly-γ-glutamic acid (γ-pGluA), a naturally occurring anionic biopolymer, showed high affinity with tumor-associated gamma-glutamyl transpeptidase (GGT), which localized on the cell surface and exhibited intracellular redox homeostasis-dependent expression pattern; thus, GGT was utilized for mediating endocytosis of nanoparticles. Herein, GGT-targeting nanopolyplexes (γ-pGluA-CSO@Fe3+, PCFN) consisting of cationic chitosan and GGT-targeting γ-pGluA blended with iron ion were constructed to load reactive oxygen species-induced menadione (MA) and doxorubicin, which were utilized to investigate the mechanism of GGT up-regulation. Briefly, the pretreated PCFN/MA induced an intracellular oxidative stress environment, which facilitated adjusted up-regulated GGT expression and boosted tumor targeting. Subsequently, the destroyed redox homeostasis sensitized tumors for synergistic therapy. The innovative strategy of augmenting active targeting by disturbing intracellular redox homeostasis offers insight for the application of γ-pGluA-derived nanopolyplexes.
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Affiliation(s)
- Fangying Yu
- College of Pharmaceutical Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, People's Republic of China.
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39
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Malekshah RE, Shakeri F, Aallaei M, Hemati M, Khaleghian A. Biological evaluation, proposed molecular mechanism through docking and molecular dynamic simulation of derivatives of chitosan. Int J Biol Macromol 2020; 166:948-966. [PMID: 33152362 DOI: 10.1016/j.ijbiomac.2020.10.252] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/24/2020] [Accepted: 10/30/2020] [Indexed: 12/15/2022]
Abstract
We synthesized Schiff base and its complexes derivatives of chitosan (CS) in order to develop antibiotic compounds based on functionalized-chitosan against gram-positive and gram-negative bacteria. IR, UV-Vis, AFM, SEM, Melting point, X-ray diffraction (XRD), elemental analysis, and 1H NMR techniques were employed to characterize the chemical structures and properties of these compounds. XRD, UV-Vis, and 1H NMR techniques confirmed the formation of Schiff base and its functionalized-chitosan to metals. Subsequently, our antibacterial studies revealed that antibacterial activities of [Zn(Schiff base)(CS)] against S. aureus bacteria increased compared to those of their compounds. In addition, hemolysis test of CS-Schiff base-Cu(II) demonstrated better hemolytic activity than vitamin C, CS-Schiff base, CS-Schiff base-Zn(II), and CS-Schiff base-Ni(II). In a computational strategy, we carried out the optimization of compounds with molecular mechanics (MM+), Semi-emprical (AM1), Abinitio (STO-3G), AMBER, BIO+(CHARMM), and OPLS. Frontier orbital density distributions (HOMO and LUMO), and the optimized computational UV of the compounds were assessed. The optimized computational UV-Vis was similar to the experimental UV-Vis. We applied the docking methods to predict the DNA binding affinity, Staphylococcus aureus enoyl-acyl carrier protein reductase (ENRs), and Staphylococcus aureus enoyl-acyl carrier protein reductase (saFabI). Ultimately, the obtained data herein suggested that Schiff base is more selective toward ENRs and saFabI compared to chitosan, its complexes, and metronidazole.
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Affiliation(s)
- Rahime Eshaghi Malekshah
- Medical Biomaterial Research Centre (MBRC), Tehran University of Medical Sciences, Tehran, Iran.
| | - Farideh Shakeri
- Biochemistry Department, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Mohammadreza Aallaei
- Department of Chemistry, Faculty of Science, Imam Hossein University, Tehran, Iran
| | - Maral Hemati
- Cancer Research Center, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Ali Khaleghian
- Biochemistry Department, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran.
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40
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Preparation and characterization of thermosensitive chitosan/carboxymethylcellulose/scleroglucan nanocomposite hydrogels. Int J Biol Macromol 2020; 162:781-797. [DOI: 10.1016/j.ijbiomac.2020.06.087] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/10/2020] [Accepted: 06/10/2020] [Indexed: 02/07/2023]
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41
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Pandit A, Khare L, Jahagirdar D, Srivastav A, Jain R, Dandekar P. Probing synergistic interplay between bio-inspired peptidomimetic chitosan-copper complexes and doxorubicin. Int J Biol Macromol 2020; 161:1475-1483. [PMID: 32750482 DOI: 10.1016/j.ijbiomac.2020.07.241] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 07/13/2020] [Accepted: 07/22/2020] [Indexed: 01/23/2023]
Abstract
The current investigation reports a novel and facile method for modification of low molecular weight chitosan (Cs) with guanidine moieties, aimed at enhancing its cellular interaction and thus augmenting its cellular internalization. Guadinylated chitosan-copper (Cs-Gn-Cu) chelates, based on copper-nitrogen co-ordination, were established. Characterization of chelates was conducted using 1H NMR, 13C NMR, XPS, XRD, TGA-DTA, and GPC techniques. Anticancer activity of formed chelates was confirmed against A549 cells using MTT assay. Experimental outcomes, for the first time, have provided an empirical evidence for synergistic interaction between the chelated polymer (Cs-Gn-Cu) and the established anti-cancer agent, Doxorubicin (Dox), based on analysis by the Chou Talalay method and estimation of their combination indices. ROS induction was demonstrated as the mechanism of action of the chelated polymer, which supplemented rapid destruction of cancerous cells by Dox. These findings strongly advocate the need for harnessing unexplored potential of these innovative metal polymer chelates in cases of Dox resistant lung cancer, wherein the polymeric system itself would serve as an anti-cancer agent.
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Affiliation(s)
- A Pandit
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai-19, India
| | - L Khare
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai-19, India
| | - D Jahagirdar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai-19, India
| | - A Srivastav
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai-19, India
| | - R Jain
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai-19, India.
| | - P Dandekar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai-19, India.
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42
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Polyurethane nanocomposite impregnated with chitosan-modified graphene oxide as a potential antibacterial wound dressing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 115:110899. [DOI: 10.1016/j.msec.2020.110899] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 03/19/2020] [Accepted: 03/25/2020] [Indexed: 12/13/2022]
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43
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Luzi F, Torre L, Puglia D. Antioxidant Packaging Films Based on Ethylene Vinyl Alcohol Copolymer (EVOH) and Caffeic Acid. Molecules 2020; 25:molecules25173953. [PMID: 32872548 PMCID: PMC7504714 DOI: 10.3390/molecules25173953] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/13/2020] [Accepted: 08/28/2020] [Indexed: 01/17/2023] Open
Abstract
The main objective of this research activity was to design and realize active films with tunable food functional properties. In detail, caffeic acid (CA), a polyphenol with high antioxidant effect, was used as active ingredient in poly (vinyl alcohol-co-ethylene) (EVOH) films at 5 wt.% and 15 wt.% and successfully realized by means of the solvent casting process. Optical, morphological, thermal and mechanical studies were considered to define the effect of the presence of the CA component on the structural properties of the matrix. In addition, moisture content and antioxidant activity were evaluated, to have clear information on the CA effect in terms of functional characteristics of realized food packaging systems. Results from tensile tests showed increased values for strength and deformation at break in EVOH_CA based films. Results from colorimetric and transparency analysis underlined that the presence of caffeic acid in EVOH copolymer induces some alterations, whereas the addition of the active ingredient determined a positive radical scavenging activity of the formulations, confirming the possibility of practically using these polymeric systems in the food packaging sector.
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Affiliation(s)
| | | | - Debora Puglia
- Correspondence: ; Tel.: +39-0744492916; Fax: +39-0744492950
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44
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Magli S, Rossi GB, Risi G, Bertini S, Cosentino C, Crippa L, Ballarini E, Cavaletti G, Piazza L, Masseroni E, Nicotra F, Russo L. Design and Synthesis of Chitosan-Gelatin Hybrid Hydrogels for 3D Printable in vitro Models. Front Chem 2020; 8:524. [PMID: 32760695 PMCID: PMC7373092 DOI: 10.3389/fchem.2020.00524] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 05/22/2020] [Indexed: 12/23/2022] Open
Abstract
The development of 3D printable hydrogels based on the crosslinking between chitosan and gelatin is proposed. Chitosan and gelatin were both functionalized with methyl furan groups. Chemical modification was performed by reductive amination with methyl furfural involving the lysine residues of gelatin and the amino groups of chitosan to generate hydrogels with tailored properties. The methyl furan residues present in both polymers were exploited for efficient crosslinking via Diels-Alder ligation with PEG-Star-maleimide under cell-compatible conditions. The obtained chitosan-gelatin hybrid was employed to formulate hydrogels and 3D printable biopolymers and its processability and biocompatibility were preliminarily investigated.
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Affiliation(s)
- Sofia Magli
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | - Giulia Beatrice Rossi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | - Giulia Risi
- G. Ronzoni Institute for Chemical and Biochemical Research, Milan, Italy
| | - Sabrina Bertini
- G. Ronzoni Institute for Chemical and Biochemical Research, Milan, Italy
| | - Cesare Cosentino
- G. Ronzoni Institute for Chemical and Biochemical Research, Milan, Italy
| | - Luca Crippa
- Department of Medical and Surgical Science, University of Milano-Bicocca, Milan, Italy
| | - Elisa Ballarini
- Department of Medical and Surgical Science, University of Milano-Bicocca, Milan, Italy
| | - Guido Cavaletti
- Department of Medical and Surgical Science, University of Milano-Bicocca, Milan, Italy
| | - Laura Piazza
- Department of Environmental Science and Policy (ESP), University of Milan, Milan, Italy
| | - Elisa Masseroni
- Department of Environmental Science and Policy (ESP), University of Milan, Milan, Italy
| | - Francesco Nicotra
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | - Laura Russo
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
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Wang Y, Han Q, Wang Y, Qin D, Luo Q, Zhang H. Self-assembly, rheological properties and antioxidant activities of chitosan grafted with tryptophan and phenylalanine. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124763] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Evaluation of Anti-inflammatory Activity and In Vitro Drug Release of Ibuprofen-Loaded Nanoparticles Based on Sodium Alginate and Chitosan. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2020. [DOI: 10.1007/s13369-020-04720-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Ziminska M, Wilson JJ, McErlean E, Dunne N, McCarthy HO. Synthesis and Evaluation of a Thermoresponsive Degradable Chitosan-Grafted PNIPAAm Hydrogel as a "Smart" Gene Delivery System. MATERIALS 2020; 13:ma13112530. [PMID: 32498464 PMCID: PMC7321466 DOI: 10.3390/ma13112530] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 05/28/2020] [Accepted: 05/29/2020] [Indexed: 12/18/2022]
Abstract
Thermoresponsive hydrogels demonstrate tremendous potential as sustained drug delivery systems. However, progress has been limited as formulation of a stable biodegradable thermosensitive hydrogel remains a significant challenge. In this study, free radical polymerization was exploited to formulate a biodegradable thermosensitive hydrogel characterized by sustained drug release. Highly deacetylated chitosan and N-isopropylacrylamide with distinctive physical properties were employed to achieve a stable, hydrogel network at body temperature. The percentage of chitosan was altered within the copolymer formulations and the subsequent physical properties were characterized using 1H-NMR, FTIR, and TGA. Viscoelastic, swelling, and degradation properties were also interrogated. The thermoresponsive hydrogels were loaded with RALA/pEGFP-N1 nanoparticles and release was examined. There was sustained release of nanoparticles over three weeks and, more importantly, the nucleic acid cargo remained functional and this was confirmed by successful transfection of the NCTC-929 fibroblast cell line. This tailored thermoresponsive hydrogel offers an option for sustained delivery of macromolecules over a prolonged considerable period.
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Affiliation(s)
- Monika Ziminska
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (M.Z.); (J.J.W.); (E.M.)
| | - Jordan J. Wilson
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (M.Z.); (J.J.W.); (E.M.)
- School of Chemistry and Chemical Engineering, Queen’s University of Belfast, Belfast BT9 5AG, UK
| | - Emma McErlean
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (M.Z.); (J.J.W.); (E.M.)
| | - Nicholas Dunne
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (M.Z.); (J.J.W.); (E.M.)
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland
- Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland
- Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin 2, Ireland
- Advanced Manufacturing Research Centre (I-Form), School of Mechanical and Manufacturing Engineering, Dublin City University, Glasnevin, Dublin 9, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin, Dublin 9, Ireland
- Advanced Processing Technology Research Centre, Dublin City University, Dublin 9, Ireland
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
- Correspondence: (N.D.); (H.O.M.); Tel.: +353-(0)1-7005712 (N.D.); +44-(0)28-90972149/1993 (H.O.M.)
| | - Helen O. McCarthy
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; (M.Z.); (J.J.W.); (E.M.)
- School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
- Correspondence: (N.D.); (H.O.M.); Tel.: +353-(0)1-7005712 (N.D.); +44-(0)28-90972149/1993 (H.O.M.)
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Malekshah RE, Shakeri F, Khaleghian A, Salehi M. Developing a biopolymeric chitosan supported Schiff-base and Cu(II), Ni(II) and Zn(II) complexes and biological evaluation as pro-drug. Int J Biol Macromol 2020; 152:846-861. [DOI: 10.1016/j.ijbiomac.2020.02.245] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 02/16/2020] [Accepted: 02/22/2020] [Indexed: 12/13/2022]
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Chitosan/Lignosulfonate Nanospheres as "Green" Biocide for Controlling the Microbiologically Influenced Corrosion of Carbon Steel. MATERIALS 2020; 13:ma13112484. [PMID: 32486037 PMCID: PMC7321122 DOI: 10.3390/ma13112484] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 11/23/2022]
Abstract
In this work, uniform cross-linked chitosan/lignosulfonate (CS/LS) nanospheres with an average diameter of 150–200 nm have been successfully used as a novel, environmentally friendly biocide for the inhibition of mixed sulfate-reducing bacteria (SRB) culture, thereby controlling microbiologically influenced corrosion (MIC) on carbon steel. It was found that 500 µg·mL−1 of the CS/LS nanospheres can be used efficiently for the inhibition of SRB-induced corrosion up to a maximum of 85% indicated by a two fold increase of charge transfer resistance (Rct) on the carbon steel coupons. The hydrophilic surface of CS/LS can readily bind to the negatively charged bacterial surfaces and thereby leads to the inactivation or damage of bacterial cells. In addition, the film formation ability of chitosan on the coupon surface may have formed a protective layer to prevent the biofilm formation by hindering the initial bacterial attachment, thus leading to the reduction of corrosion.
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Velmurugan S, Palanisamy S, C-K Yang T, Gochoo M, Chen SW. Ultrasonic assisted functionalization of MWCNT and synergistic electrocatalytic effect of nano-hydroxyapatite incorporated MWCNT-chitosan scaffolds for sensing of nitrofurantoin. ULTRASONICS SONOCHEMISTRY 2020; 62:104863. [PMID: 31806550 DOI: 10.1016/j.ultsonch.2019.104863] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 11/02/2019] [Accepted: 11/03/2019] [Indexed: 06/10/2023]
Abstract
In the present work, we report the fabrication of stable composite of chitosan hydrogels (CHI) on multiwalled carbon nanotubes (MWCNT) using a simple ultrasonic-assisted method. Also, rod-like hydroxyapatite nanoparticles (HA NPs) were synthesised using a hydrothermal route and were incorporated into the highly conductive MWCNT-CHI scaffolds using an ultrasonication method. The functionalization of MWCNT and preparation of HA NPs on MWCNT-CHI nanocomposite were done using the sonication over the frequency of 37 kHz with the ultrasonic power capable of 150 W (Elmasonic Easy 60H bath sonicator). The resulting hybrid HA NPs/MWCNT-CHI nanocomposites have an excellent surface area and high surface to volume ratio, which leads to the sensitive detection of nitrofurantoin than pristine MWCNT and HA NPs. The complete elemental and morphological analyses of the HA NPs/MWCNT-CHI nanocomposites were characterised by XRD, FTIR, RAMAN, FESEM, TEM, EDX, and elemental mapping techniques. Electrochemical analysis of the HA NPs/MWCNT-CHI nanocomposites was carried out by cyclic voltammetry, electrochemical impedance spectroscopy and amperometry methods. The modified glassy carbon electrode (GCE) of HA NPs/MWCNT-CHI nanocomposites exhibit the nitrofurantoin detection activity at the linear range of 0.005-982.1 µM with the detection limit of 1.3 nM. The synergistic electrocatalytic activity of HA NPs/MWCNT-CHI nanocomposites modified GCE is correlated to the sensitivity of 0.16 µAµM-1 cm-2 with excellent precision and accuracy towards the sensing of nitrofurantoin.
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Affiliation(s)
- Sethupathi Velmurugan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan, ROC
| | - Selvakumar Palanisamy
- Center of Precision Analysis and Material Research, National Taipei University of Technology, Taipei, Taiwan, ROC.
| | - Thomas C-K Yang
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan, ROC; Center of Precision Analysis and Material Research, National Taipei University of Technology, Taipei, Taiwan, ROC.
| | - Munkhjargal Gochoo
- Department of Computer Science and Software Engineering, College of Information Technology, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Shih-Wen Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan, ROC
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