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Koochaki MS, Momen G, Lavoie S, Jafari R. Enhancing Icephobic Coatings: Exploring the Potential of Dopamine-Modified Epoxy Resin Inspired by Mussel Catechol Groups. Biomimetics (Basel) 2024; 9:349. [PMID: 38921229 PMCID: PMC11201944 DOI: 10.3390/biomimetics9060349] [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: 05/26/2024] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 06/27/2024] Open
Abstract
A nature-inspired approach was employed through the development of dopamine-modified epoxy coating for anti-icing applications. The strong affinity of dopamine's catechol groups for hydrogen bonding with water molecules at the ice/coating interface was utilized to induce an aqueous quasi-liquid layer (QLL) on the surface of the icephobic coatings, thereby reducing their ice adhesion strength. Epoxy resin modification was studied by attenuated total reflectance infrared spectroscopy (ATR-FTIR) and nuclear magnetic resonance spectroscopy (NMR). The surface and mechanical properties of the prepared coatings were studied by different characterization techniques. Low-temperature ATR-FTIR was employed to study the presence of QLL on the coating's surface. Moreover, the freezing delay time and temperature of water droplets on the coatings were evaluated along with push-off and centrifuge ice adhesion strength to evaluate their icephobic properties. The surface of dopamine-modified epoxy coating presented enhanced hydrophilicity and QLL formation, addressed as the main reason for its remarkable icephobicity. The results demonstrated the potential of dopamine-modified epoxy resin as an effective binder for icephobic coatings, offering notable ice nucleation delay time (1316 s) and temperature (-19.7 °C), reduced ice adhesion strength (less than 40 kPa), and an ice adhesion reduction factor of 7.2 compared to the unmodified coating.
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Affiliation(s)
- Mohammad Sadegh Koochaki
- Département des Sciences Appliquées, Université du Québec à Chicoutimi, Chicoutimi, QC G7H 2B1, Canada; (M.S.K.); (R.J.)
| | - Gelareh Momen
- Département des Sciences Appliquées, Université du Québec à Chicoutimi, Chicoutimi, QC G7H 2B1, Canada; (M.S.K.); (R.J.)
| | - Serge Lavoie
- Département des Sciences Fondamentales, Université du Québec à Chicoutimi, Chicoutimi, QC G7H 2B1, Canada;
| | - Reza Jafari
- Département des Sciences Appliquées, Université du Québec à Chicoutimi, Chicoutimi, QC G7H 2B1, Canada; (M.S.K.); (R.J.)
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Altharawi A, Alqahtani SM, Aldakhil T, Ahmad I. Microwave-assisted synthesis of novel Ti/BTB-MOFs as porous anticancer and antibacterial agents. Front Chem 2024; 12:1386311. [PMID: 38803382 PMCID: PMC11128661 DOI: 10.3389/fchem.2024.1386311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 04/22/2024] [Indexed: 05/29/2024] Open
Abstract
Nano compounds, especially metal-organic frameworks (MOFs), have significant properties. Among the most important properties of these compounds, which depend on their specific surface area and porosity, are biological properties, such as anticancer and antibacterial properties. In this study, a new titanium/BTB metal-organic framework (Ti/BTB-MOF) was synthesized by using titanium nitrate and 1,3,5-Tris(4-carboxyphenyl)benzene (BTB) under microwave radiation. The structure of the synthesized Ti/BTB-MOF was characterized and confirmed using X-ray diffraction (XRD) patterns, X-ray photoelectron spectroscopy (XPS) analysis, Fourier transform infrared (FT-IR) spectra, energy-dispersive X-ray (EDAX) analysis mapping, scanning electron microscope (SEM) images, thermogravimetric analysis (TGA) curves, and Brunauer-Emmett-Teller (BET) analysis. The in vitro anticancer properties of Ti/BTB-MOF were evaluated using the MTT method against MG-63/bone cancer cells and A-431/skin cancer cells. The in vitro antibacterial activity was tested using the Clinical and Laboratory Standards Institute (CLSI) guidelines. In the anticancer activity, IC50 (half-maximal inhibitory concentration) values of 152 μg/mL and 201 μg/mL for MG-63/bone cancer cells and A-431/skin cancer cells, respectively, were observed. In the antibacterial activity, minimum inhibitory concentrations (MICs) of 2-64 μg/mL were observed against studied pathogenic strains. The antimicrobial activity of Ti/BTB-MOF was higher than that of penicillin and gentamicin. Therefore, the synthesized Ti/BTB-MOF could be introduced as a suitable bioactive candidate.
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Affiliation(s)
- Ali Altharawi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Safar M. Alqahtani
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Taibah Aldakhil
- Department of Pharmaceutical Chemistry, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Irfan Ahmad
- Department of Clinical Laboratory Sciences, College of Applied Medical Science, King Khalid University, Abha, Saudi Arabia
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Bhardwaj D, Bhaskar R, Sharma AK, Garg M, Han SS, Agrawal G. Gelatin/Polyacrylamide-Based Antimicrobial and Self-Healing Hydrogel Film for Wound Healing Application. ACS APPLIED BIO MATERIALS 2024; 7:879-891. [PMID: 38323456 DOI: 10.1021/acsabm.3c00903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
In this study, a self-healing, adhesive, and superabsorbent film made of gelatin, poly(acrylamide), and boric acid (GelAA) was successfully synthesized using a free radical reaction mechanism. The optimized film showed a remarkable 2865 ± 42% water absorptivity and also exhibited excellent self-healing behavior. The GelAA films were further loaded with silver nanoclusters (AgNCs) and ursodeoxycholic acid (UDC) (loading efficiency = 10%) to develop UDC/Ag/GelAA films. The loading of AgNCs in UDC/Ag/GelAA films helped in exhibiting 99.99 ± 0.01% antibacterial activity against both Gram-positive and Gram-negative bacteria, making them very effective against bacterial infections. Additionally, UDC/Ag/GelAA films had 77.19 ± 0.52% porosity and showed 90% of UDC release in 30 h, which helps in improving the cell proliferation. Our research provides an easy but highly effective process for synthesizing a hydrogel film, which is an intriguing choice for wound healing applications without the use of antibiotics.
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Affiliation(s)
- Dimpy Bhardwaj
- School of Chemical Sciences and Advanced Materials Research Centre, Indian Institute of Technology Mandi, Mandi 175075, Himachal Pradesh, India
| | - Rakesh Bhaskar
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, South Korea
| | - Amit Kumar Sharma
- Department of Chemistry, University Institute of Sciences, Chandigarh University, Mohali 140413, Punjab, India
- University Centre for Research & Development, Chandigarh University, Mohali 140413, Punjab, India
| | - Megha Garg
- School of Chemical Sciences and Advanced Materials Research Centre, Indian Institute of Technology Mandi, Mandi 175075, Himachal Pradesh, India
| | - Sung Soo Han
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, South Korea
| | - Garima Agrawal
- School of Chemical Sciences and Advanced Materials Research Centre, Indian Institute of Technology Mandi, Mandi 175075, Himachal Pradesh, India
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Stoll S, Hwang JH, Fox DW, Kim K, Zhai L, Lee WH. Cost-effective screen-printed carbon electrode biosensors for rapid detection of microcystin-LR in surface waters for early warning of harmful algal blooms. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:124854-124865. [PMID: 36194320 DOI: 10.1007/s11356-022-23300-5] [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: 07/13/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Microcystins (MCs) are toxins produced by cyanobacteria commonly found in harmful algal blooms (HABs). Due to their toxicity to humans and other organisms, the World Health Organization (WHO) sets a guideline of 1 μg L-1 for microcystin-leucine-arginine (MC-LR) in drinking water. However, current analytical techniques for the detection of MC-LR such as liquid chromatography-mass spectrometry (LC-MS) and ELISA are costly, bulky, time-consuming, and mostly conducted in a laboratory, requiring highly trained personnel. An analytical method that can be used in the field for rapid determination is essential. In this study, an anti-MC-LR/MC-LR/cysteamine-coated screen-printed carbon electrode (SPCE) biosensor was newly developed to detect MC-LR, bioelectrochemically, in water. The functionalization of the electrode surface was confirmed with surface characterization methods. The sensor performance was evaluated by electrochemical impedance spectroscopy (EIS), obtaining a linear working range of MC-LR concentrations between 0.1 and 100 μg L-1 with a limit of detection (LOD) of 0.69 ng L-1. Natural water samples experiencing HABs were collected and analyzed using the developed biosensor, demonstrating the excellent performance of the biosensor with a relative standard deviation (RSD) of 0.65%. The interference tests showed minimal error and RSD values against other common MCs and possible coexisting ions found in water. The biosensor showed acceptable functionality with a shelf life of up to 12 weeks. Overall, the anti-MC-LR/MC-LR/cysteamine/SPCE biosensors can be an innovative solution with characteristics that allow for in situ, low-cost, and easy-to-use capabilities which are essential for developing an overarching and integrated "smart" environmental management system.
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Affiliation(s)
- Stephanie Stoll
- Department of Civil, Environmental, and Construction Engineering, University of Central Florida, Orlando, FL, 32816, USA
| | - Jae-Hoon Hwang
- Department of Civil, Environmental, and Construction Engineering, University of Central Florida, Orlando, FL, 32816, USA
| | - David W Fox
- Nanoscience Technology Center and Department of Chemistry, University of Central Florida, Orlando, FL, 32816, USA
| | - Keugtae Kim
- Department of Environmental and Energy Engineering, The University of Suwon, 17 Wauan-gil, Bongdam-eup, Hwaseong-si, Gyeonggi-do, 18323, South Korea
| | - Lei Zhai
- Nanoscience Technology Center and Department of Chemistry, University of Central Florida, Orlando, FL, 32816, USA
| | - Woo Hyoung Lee
- Department of Civil, Environmental, and Construction Engineering, University of Central Florida, Orlando, FL, 32816, USA.
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Sulthan R, Reghunadhan A, Sambhudevan S. A new era of chitin synthesis and dissolution using Deep Eutectic Solvents- Comparison with Ionic Liquids. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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Melaninization Reduces Cryptococcus neoformans Susceptibility to Mechanical Stress. mSphere 2023; 8:e0059122. [PMID: 36602315 PMCID: PMC9942553 DOI: 10.1128/msphere.00591-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Melanin is a complex pigment that is found in various fungal species and is associated with a multitude of protective functions against environmental stresses. In Cryptococcus neoformans, melanin is synthesized from exogenous substrate and deposited in the cell wall. Although melanin is often cited as a protector against mechanical stress, there is a paucity of direct experimental data supporting this claim. To probe whether melanin enhances cellular strength, we used ultrasonic cavitation and French cell press pressure to stress cryptococcal cells and then measured changes in cellular morphology and fragmentation for melanized and nonmelanized C. neoformans cells. Melanized yeast cells exhibited lower rates of fragmentation and greater cell areas than did nonmelanized yeast cells after sonication or French press passage. When subjected to French press passage, both melanized and nonmelanized cells exhibited responses that were dependent on their culture age. Our results indicate that melanization protects against some of the morphological changes, such as fragmentation and cellular shrinkage, that are initiated by mechanical energy derived from either sonic cavitation or French press passage, thus supporting the notion that this pigment provides mechanical strength for fungal cell walls. IMPORTANCE Melanin was shown in prior microbiological experiments to be associated with protection against environmental stressors, and it has often been cited as being associated with mechanical stress protection. However, there is a lack of direct experimentation to confirm this claim. We examined the responses of melanized and nonmelanized C. neoformans cells to sonication and French press passage, and we report differences in outcomes depending not only on melanization status but also on culture age. Such findings have important implications for the design and interpretation of laboratory experiments involving C. neoformans. In addition, the elucidation of some of the mechanical properties of melanin promotes further research into fungal melanin applications in health care and industry.
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Mariyaselvakumar M, Kadam GG, Mani M, Srinivasan K, Konwar LJ. Direct hydrogenation of CO2-rich scrubbing solvents to formate/formic acid over heterogeneous Ru catalysts: A sustainable approach towards continuous integrated CCU. J CO2 UTIL 2023. [DOI: 10.1016/j.jcou.2022.102326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Visible light-driven selective oxidation of amines by cooperative photocatalysis of niobium oxide nanorods with an electron–proton transfer mediator. J Colloid Interface Sci 2022. [DOI: 10.1016/j.jcis.2022.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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9
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Olgaç N, Şahin Y, Liv L. Development and characterisation of cysteine-based gold electrodes for the electrochemical biosensing of the SARS-CoV-2 spike antigen. Analyst 2022; 147:4462-4472. [PMID: 36052711 DOI: 10.1039/d2an01225a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This article describes three novel electrochemical biosensing platforms developed to determine the severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) spike antigen protein: glutaraldehyde, SARS-CoV-2 spike antibody and bovine serum albumin; N,N-dicyclohexyl carbodiimide/4-(dimethylamino)pyridine functionalised SARS-CoV-2 spike antibody and bovine serum albumin; and 1-ethyl-3-[3-dimethylaminopropyl]-carbodiimide hydrochloride/N-hydroxysuccinimide functionalised SARS-CoV-2 spike antibody and bovine serum albumin modified cysteine-based gold-flower modified glassy carbon electrodes. Two of the produced biosensors having better signals were used to determine the SARS-CoV-2 spike antigen in spiked-saliva and clinical samples containing gargle and mouthwash liquids and characterised using cyclic voltammetry, scanning electron microscopy, energy dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy. The study provides highly significant information in terms of how coupling reagents ought to be used with linkers consisting of both amine and carboxylic acid terminals (i.e. cysteine). The electrochemical cathodic signals based on antibody-antigen protein interactions at approximately -270 mV were evaluated as a response using square wave voltammetry, and they increased in proportion to the SARS-CoV-2 spike antigen. The limit of detection values were 0.93 and 46.3 ag mL-1 in a linear range from 1 ag mL-1 to 100 pg mL-1 and from 100 ag mL-1 to 10 ng mL-1 and the recovery and relative standard deviation values for spiked-saliva samples were 99.50% and 99.40%, and 3.87% and 0.13% for BSA/S-AB/GluAl/Cys/Au/GCE and BSA/S-AB/f-Cys/Au/GCE, respectively. The results showed that both biosensing platforms could be selectively and accurately used to diagnose COVID-19 in RT-PCR-approved clinical samples.
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Affiliation(s)
- Nursel Olgaç
- Electrochemistry Laboratory, Chemistry Group, The Scientific and Technological Research Council of Turkey, National Metrology Institute (TUBITAK UME), 41470, Gebze, Kocaeli, Turkey. .,Yildiz Technical University, Faculty of Arts and Science, Department of Chemistry, 34210, Istanbul, Turkey.
| | - Yücel Şahin
- Yildiz Technical University, Faculty of Arts and Science, Department of Chemistry, 34210, Istanbul, Turkey.
| | - Lokman Liv
- Electrochemistry Laboratory, Chemistry Group, The Scientific and Technological Research Council of Turkey, National Metrology Institute (TUBITAK UME), 41470, Gebze, Kocaeli, Turkey.
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High-performance triboelectric nanogenerator based on chitin for mechanical-energy harvesting and self-powered sensing. Carbohydr Polym 2022; 291:119586. [DOI: 10.1016/j.carbpol.2022.119586] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 04/07/2022] [Accepted: 05/05/2022] [Indexed: 11/22/2022]
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11
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Facchinatto WM, Dos Santos DM, de Lacerda Bukzem A, Moraes TB, Habitzreuter F, de Azevedo ER, Colnago LA, Campana-Filho SP. Insight into morphological, physicochemical and spectroscopic properties of β-chitin nanocrystalline structures. Carbohydr Polym 2021; 273:118563. [PMID: 34560974 DOI: 10.1016/j.carbpol.2021.118563] [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: 03/14/2021] [Revised: 06/14/2021] [Accepted: 08/13/2021] [Indexed: 10/20/2022]
Abstract
We systematically investigated the effect of β-chitin (BCH) particle size on the preparation of nanocrystals/nanowhiskers (CWH) by acid hydrolysis. Regardless this variable, CWH aqueous suspension exhibited outstanding stability and the average degree of acetylation remained nearly constant after the acid treatment. In contrast, the morphology, dimensions, crystallinity, and molecular weight of CHW were significantly affect by the particle size. Although needle-like crystals have predominated, BCH particles sizes significantly affected the dimensions and asymmetry of CWH, as confirmed by the rheological and NMR relaxation (T2) behaviors. According to different SSNMR approaches, the acid hydrolysis meaningless affected the local chain conformation, while the spatial freedom of BCH intersheets, rated upon the mobility of methyl segments, was taken as evidence of higher permeability of acid into small particle sizes. Thus, this study demonstrated the importance of standardizing the surface/bulk proportions of β-chitin aiming to predict and control the CWH morphology and related properties.
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Affiliation(s)
- William Marcondes Facchinatto
- São Carlos Institute of Chemistry, University of São Paulo, Avenida Trabalhador sao-carlense 400, Zip Code 13560-590, PO Box 780, São Carlos, SP, Brazil.
| | - Danilo Martins Dos Santos
- Brazilian Corporation for Agricultural Research, Embrapa Instrumentation, Rua XV de Novembro 1452, Zip Code 13560-970, PO Box 741, São Carlos, SP, Brazil
| | - Andrea de Lacerda Bukzem
- São Carlos Institute of Chemistry, University of São Paulo, Avenida Trabalhador sao-carlense 400, Zip Code 13560-590, PO Box 780, São Carlos, SP, Brazil
| | - Tiago Bueno Moraes
- Department of Chemistry, Institute of Exact Sciences, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, Zip Code 31270-901, PO Box 702, Belo Horizonte, MG, Brazil
| | - Filipe Habitzreuter
- São Carlos Institute of Chemistry, University of São Paulo, Avenida Trabalhador sao-carlense 400, Zip Code 13560-590, PO Box 780, São Carlos, SP, Brazil
| | - Eduardo Ribeiro de Azevedo
- São Carlos Institute of Physics, University of São Paulo, Avenida Trabalhador São-carlense 400, Zip Code 13560-590, PO Box 369, São Carlos, SP, Brazil
| | - Luiz Alberto Colnago
- Brazilian Corporation for Agricultural Research, Embrapa Instrumentation, Rua XV de Novembro 1452, Zip Code 13560-970, PO Box 741, São Carlos, SP, Brazil
| | - Sérgio Paulo Campana-Filho
- São Carlos Institute of Chemistry, University of São Paulo, Avenida Trabalhador sao-carlense 400, Zip Code 13560-590, PO Box 780, São Carlos, SP, Brazil
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Rezaei FS, Sharifianjazi F, Esmaeilkhanian A, Salehi E. Chitosan films and scaffolds for regenerative medicine applications: A review. Carbohydr Polym 2021; 273:118631. [PMID: 34561021 DOI: 10.1016/j.carbpol.2021.118631] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/29/2021] [Accepted: 08/30/2021] [Indexed: 01/01/2023]
Abstract
Over the last years, chitosan has demonstrated unparalleled characteristics for regenerative medicine applications. Beside excellent antimicrobial and wound healing properties, this polysaccharide biopolymer offers favorable characteristics such as biocompatibility, biodegradability, and film and fiber-forming capabilities. Having plentiful active amine groups, chitosan can be also readily modified to provide auxiliary features for growing demands in regenerative medicine, which is constantly confronted with new problems, necessitating the creation of biocompatible, immunogenic and biodegradable film/scaffold composites. A new look at the chitosan composites structure/activity/application tradeoff is the primary focus of the current review, which can help researchers to detect the bottlenecks and overcome the shortcomings that arose from this intersection. In the current review, the most recent advances in chitosan films and scaffolds in terms of preparation techniques and modifying methods for improving their functional properties, in three major biomedical fields i.e., tissue engineering, wound healing, and drug delivery are surveyed and discussed.
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Affiliation(s)
- Farnoush Sadat Rezaei
- Department of Chemical Engineering, Faculty of Engineering, Amir Kabir University, Tehran, Iran
| | - Fariborz Sharifianjazi
- Department of Mining and Metallurgical Engineering, Faculty of Engineering, Amir Kabir University, Tehran, Iran
| | - Amirhossein Esmaeilkhanian
- Department of Mining and Metallurgical Engineering, Faculty of Engineering, Amir Kabir University, Tehran, Iran
| | - Ehsan Salehi
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak 38156-88349, Iran.
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Label-Free Creatinine Optical Sensing Using Molecularly Imprinted Titanium Dioxide-Polycarboxylic Acid Hybrid Thin Films: A Preliminary Study for Urine Sample Analysis. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9070185] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Creatinine (CR) is a representative metabolic byproduct of muscles, and its sensitive and selective detection has become critical in the diagnosis of kidney diseases. In this study, poly(acrylic acid) (PAA)-assisted molecularly imprinted (MI) TiO2 nanothin films fabricated via liquid phase deposition (LPD) were employed for CR detection. The molecular recognition properties of the fabricated films were evaluated using fiber optic long period grating (LPG) and quartz crystal microbalance sensors. Imprinting effects were examined compared with nonimprinted (NI) pure TiO2 and PAA-assisted TiO2 films fabricated similarly without a template. In addition, the surface modification of the optical fiber section containing the LPG with a mesoporous base coating of silica nanoparticles, which was conducted before LPD-based TiO2 film deposition, contributed to the improvement of the sensitivity of the MI LPG sensor. The sensitivity and selectivity of LPGs coated with MI films were tested using CR solutions dissolved in different pH waters and artificial urine (near pH 7). The CR binding constants of the MI and NI films, which were calculated from the Benesi–Hildebrand plots of the wavelength shifts of the second LPG band recorded in water at pH 4.6, were estimated to be 67 and 7.8 M–1, respectively, showing an almost ninefold higher sensitivity in the MI film. The mechanism of the interaction between the template and the TiO2 matrix and the film composition was investigated via ultraviolet–visible and attenuated total reflectance Fourier-transform infrared spectroscopy along with X-ray photoelectron spectroscopy analysis. In addition, morphological studies using a scanning electron microscope and atomic force microscope were conducted. The proposed system has the potential for practical use to determine CR levels in urine samples. This LPG-based label-free CR biosensor is innovative and expected to be a new tool to identify complex biomolecules in terms of its easy fabrication and simplicity in methodology.
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Priya, Sharma AK, Kaith BS, Simran, Bhagyashree, Arora S. Synthesis of dextrin-polyacrylamide and boric acid based tough and transparent, self-healing, superabsorbent film. Int J Biol Macromol 2021; 182:712-721. [PMID: 33862073 DOI: 10.1016/j.ijbiomac.2021.04.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 04/04/2021] [Accepted: 04/05/2021] [Indexed: 01/02/2023]
Abstract
Stretchabiliy, transparency and self-healing ability of bio-based materials are some of the important features for their utilization in the biomedical field. Recently, robust self-healing super porous materials possessing multifunctional nature have raised enormous interest among the researchers in order to design different materials which can be used in industrial, biomedical and pharmaceutical fields. Herein, a novel self-healing, stretchable and transparent superabsorbent film based on Dextrin-polyacrylamide and Boric Acid (DEX-cl-polyAAm) was synthesized using a free radical reaction mechanism. In distilled water, the maximum water absorptivity of the synthesized film was reported to be 3156% after the optimization of various reaction parameters. The film was also found to show structural integrity in urea solution, phosphate buffer and solutions of different pH. Lastly, the viscoelastic and self-healing analysis of the film suggested its utility towards biomedical field.
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Affiliation(s)
- Priya
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar 144 011, Punjab, India.
| | - Amit Kumar Sharma
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar 144 011, Punjab, India.
| | - Balbir Singh Kaith
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar 144 011, Punjab, India.
| | - Simran
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar 144 011, Punjab, India.
| | - Bhagyashree
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar 144 011, Punjab, India.
| | - Saiyam Arora
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar 144 011, Punjab, India.
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Ávila‐Ortega A, Avalos‐Hernández JP, Trejo‐Tzab R, Oliva AI, Juárez‐Moreno JA. Influence of deposited amine‐functionalized
Si‐MCM
‐41 in polyacrylonitrile electrospun membranes applied for separation of water in oil emulsions. J Appl Polym Sci 2021. [DOI: 10.1002/app.50737] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
| | | | - Rudy Trejo‐Tzab
- Facultad de Ingeniería Química Universidad Autónoma de Yucatán Mérida Yucatán Mexico
| | - Andrés Iván Oliva
- Depto. de Física Aplicada Centro de Investigación y de Estudios Avanzados del IPN – Unidad Mérida Mérida Yucatán Mexico
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16
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Pedro SN, R. Freire CS, Silvestre AJD, Freire MG. The Role of Ionic Liquids in the Pharmaceutical Field: An Overview of Relevant Applications. Int J Mol Sci 2020; 21:E8298. [PMID: 33167474 PMCID: PMC7663996 DOI: 10.3390/ijms21218298] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 01/12/2023] Open
Abstract
Solubility, bioavailability, permeation, polymorphism, and stability concerns associated to solid-state pharmaceuticals demand for effective solutions. To overcome some of these drawbacks, ionic liquids (ILs) have been investigated as solvents, reagents, and anti-solvents in the synthesis and crystallization of active pharmaceutical ingredients (APIs), as solvents, co-solvents and emulsifiers in drug formulations, as pharmaceuticals (API-ILs) aiming liquid therapeutics, and in the development and/or improvement of drug-delivery-based systems. The present review focuses on the use of ILs in the pharmaceutical field, covering their multiple applications from pharmaceutical synthesis to drug delivery. The most relevant research conducted up to date is presented and discussed, together with a critical analysis of the most significant IL-based strategies in order to improve the performance of therapeutics and drug delivery systems.
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Affiliation(s)
| | | | | | - Mara G. Freire
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal; (S.N.P.); (C.S.R.F.); (A.J.D.S.)
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17
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Pradhan S, Moore KM, Ainslie KM, Yadavalli VK. Flexible, microstructured surfaces using chitin-derived biopolymers. J Mater Chem B 2020; 7:5328-5335. [PMID: 31389964 DOI: 10.1039/c9tb00965e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chitin, one of the most abundant natural amino polysaccharides, is obtained primarily from the exoskeletons of crustaceans, crabs and shrimp. Chitin and its derivative chitosan have gained much attention in the field of biomedical research due to attractive properties such as biocompatibility, non-toxicity, biodegradability, low immunogenicity, and ease of availability. While work has been done on the use of chitin and chitosan as functional biomaterials by imparting specific properties, the potential of chitin as a biomaterial is somewhat limited owing to its intractable processing. In this work, we propose a facile reaction to modify the chitin chain with photoactive moieties for the realization of photocrosslinkable chitin. This chitin derivative is easily usable with a benign solvent formic acid to be able to form mechanically robust, optically transparent sheets. These films exhibit comparable tensile properties to that of native chitin and chitosan and better surface wettability. Most importantly, this material can be used to form precise, high resolution microarchitectures on both rigid and flexible substrates using a facile bench top photolithography technique. These flexible micropatterned 2D sheets of chitin were demonstrated as a dynamic cell culture substrate for the adhesion and proliferation of fibroblasts, wherein the chitin micropatterns act as a template for spatial guidance of cells. This chitin-based biopolymer can find diverse uses in tissue engineering as well as to form components for degradable bioelectronics.
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Affiliation(s)
- Sayantan Pradhan
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA.
| | - Kathryn M Moore
- Pharmacoengineering & Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, Chapel Hill, NC 27599, USA
| | - Kristy M Ainslie
- Pharmacoengineering & Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, Chapel Hill, NC 27599, USA
| | - Vamsi K Yadavalli
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA.
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18
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Treeweranuwat P, Boonyoung P, Chareonpanich M, Nueangnoraj K. Role of Nitrogen on the Porosity, Surface, and Electrochemical Characteristics of Activated Carbon. ACS OMEGA 2020; 5:1911-1918. [PMID: 32039327 PMCID: PMC7003201 DOI: 10.1021/acsomega.9b03586] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 01/13/2020] [Indexed: 05/18/2023]
Abstract
Surface functionalities of activated carbon can be affected by the presence of heteroatoms such as oxygen, sulfur, and nitrogen. In this work, nitrogen-doped activated carbons (NACs) were prepared from shrimp shells, and the effects of the mixing ratio (raw material to an activating agent) on the porous texture and surface functionalities were investigated. It was found that, with increasing the mixing ratio (resulting in increasing N/C), the development of mesoporosity was significantly observed. This led to decreasing microporosity and specific surface areas (SSAs). The obtained NACs exhibited nitrogen functionalities in the forms of pyridinic and pyrrolic groups. It was found that although the pyridinic-N has a detrimental effect on the SSA, it does favor the pseudocapacitance, leading to an enhancement in the ion storage capability regardless of the low SSA.
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Affiliation(s)
- Panudetch Treeweranuwat
- School
of Bio-Chemical Engineering and Technology, Sirindhorn International Institute of Technology, Thammasat University
− Rangsit Campus, P.O. Box 22, Pathum Thani 12121, Thailand
| | - Pawan Boonyoung
- School
of Bio-Chemical Engineering and Technology, Sirindhorn International Institute of Technology, Thammasat University
− Rangsit Campus, P.O. Box 22, Pathum Thani 12121, Thailand
| | - Metta Chareonpanich
- Department
of Chemical Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand
| | - Khanin Nueangnoraj
- Research
Network of NANOTEC on NanoCatalysts and NanoMaterials for Sustainable
Energy and Environment, School of Bio-Chemical Engineering and Technology, Sirindhorn International Institute of Technology,
Thammasat University − Rangsit Campus, P.O. Box 22, Pathum Thani 12121, Thailand
- E-mail:
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19
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Munyazesa FX, Zhang Y, Wang B, Wang C, Feng X, Mao Z, Chen Y, Sui X. Pickering emulsion process assisted construction of regenerated chitin reinforced poly (lactic acid) blends. Int J Biol Macromol 2019; 140:10-16. [DOI: 10.1016/j.ijbiomac.2019.08.117] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/08/2019] [Accepted: 08/10/2019] [Indexed: 11/28/2022]
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20
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Nguyen HL, Ju S, Hao LT, Tran TH, Cha HG, Cha YJ, Park J, Hwang SY, Yoon DK, Hwang DS, Oh DX. The Renewable and Sustainable Conversion of Chitin into a Chiral Nitrogen-Doped Carbon-Sheath Nanofiber for Enantioselective Adsorption. CHEMSUSCHEM 2019; 12:3236-3242. [PMID: 31081284 DOI: 10.1002/cssc.201901176] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Indexed: 06/09/2023]
Abstract
Well-known hard-template methods for nitrogen (N)-doped chiral carbon nanomaterials require complicated construction and removal of the template, high-temperature pyrolysis, harsh chemical treatments, and additional N-doping processes. If naturally occurring chiral nematic chitin nanostructures [(C8 H13 NO5 )n ] in exoskeletons were wholly transformed into an N-doped carbon, this would be an efficient and sustainable method to obtain a useful chiral nanomaterial. Here, a simple, sacrificial-template-free, and environmentally mild method was developed to produce an N-doped chiral nematic carbon-sheath nanofibril hydrogel with a surface area >300 m2 g-1 and enantioselective properties from renewable chitin biomass. Calcium-saturated methanol physically exfoliated bulk chitin and produced a chiral nematic nanofibril hydrogel. Hydrothermal treatment of the chiral chitin hydrogel at 190 °C produced an N-doped chiral carbon-sheath nanofibril hydrogel without N-doping. This material preferentially adsorbed d-lactic acid over l-lactic acid and produced 16.3 % enantiomeric excess of l-lactic acid from a racemic mixture.
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Affiliation(s)
- Hoang-Linh Nguyen
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Republic of Korea
| | - Sungbin Ju
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Republic of Korea
| | - Lam Tan Hao
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 305-333, Republic of Korea
| | - Thang Hong Tran
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 305-333, Republic of Korea
| | - Hyun Gil Cha
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
| | - Yoon Jeong Cha
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Republic of Korea
| | - Jeyoung Park
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 305-333, Republic of Korea
| | - Sung Yeon Hwang
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 305-333, Republic of Korea
| | - Dong Ki Yoon
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Republic of Korea
- Department of Chemistry, KAIST, Daejeon, 305-701, Republic of Korea
| | - Dong Soo Hwang
- School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Republic of Korea
| | - Dongyeop X Oh
- Research Center for Bio-based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 305-333, Republic of Korea
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21
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Tran TH, Nguyen HL, Hao LT, Kong H, Park JM, Jung SH, Cha HG, Lee JY, Kim H, Hwang SY, Park J, Oh DX. A ball milling-based one-step transformation of chitin biomass to organo-dispersible strong nanofibers passing highly time and energy consuming processes. Int J Biol Macromol 2019; 125:660-667. [DOI: 10.1016/j.ijbiomac.2018.12.086] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/02/2018] [Accepted: 12/08/2018] [Indexed: 12/11/2022]
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22
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Tran TH, Nguyen HL, Hwang DS, Lee JY, Cha HG, Koo JM, Hwang SY, Park J, Oh DX. Five different chitin nanomaterials from identical source with different advantageous functions and performances. Carbohydr Polym 2018; 205:392-400. [PMID: 30446120 DOI: 10.1016/j.carbpol.2018.10.089] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 10/26/2018] [Accepted: 10/26/2018] [Indexed: 01/19/2023]
Abstract
Chitin is a renewable and sustainable biomass material that can be converted into various one-dimensional crystalline nanomaterials different in 1) length, 2) diameter, 3) charge density, 4) type of charge, and 5) crystallinity via diverse top-down synthetic methods. These nanomaterials have great potential as sustainable reinforcing and biologically functional materials. The proper design of chitin nanomaterials maximizes their performances in specific applications. Extensive efforts are devoted to understanding each type of chitin nanomaterial produced from different chitin sources; however, few studies have compared different chitin nanomaterials. Herein, we synthesize five different types of chitin nanomaterials from identical sources and compare their physical and chemical properties, including suitability for assorted purposes. Factors 1)-5) are discussed regarding their dominance in determining functionality depending on the specific goals of a) gas barriers, b) mechanical reinforcements, c) dispersibility in various pH aqueous buffers, d) thermal dimensional stability, and e) antibacterial activity. This study gives insights to design new chitin nanomaterial-based materials.
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Affiliation(s)
- Thang Hong Tran
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Republic of Korea; Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Hoang-Linh Nguyen
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Republic of Korea; Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Dong Soo Hwang
- Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Ju Young Lee
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Republic of Korea
| | - Hyun Gil Cha
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Republic of Korea
| | - Jun Mo Koo
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Republic of Korea
| | - Sung Yeon Hwang
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Republic of Korea; Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon 34113, Republic of Korea.
| | - Jeyoung Park
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Republic of Korea; Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon 34113, Republic of Korea.
| | - Dongyeop X Oh
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Republic of Korea; Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon 34113, Republic of Korea.
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23
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Nguyen KD, Trang TTC, Kobayashi T. Chitin-halloysite nanoclay hydrogel composite adsorbent to aqueous heavy metal ions. J Appl Polym Sci 2018. [DOI: 10.1002/app.47207] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Khoa Dang Nguyen
- Department of Science of Technology Innovation; Nagaoka University of Technology; Nagaoka, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188 Japan
| | - Truong Thi Cam Trang
- Faculty of Environmental Science; Ho Chi Minh University of Science, Vietnam National University; 227 Nguyen Van Cu, Ward 4, District 5, Ho Chi Minh, 70000 Vietnam
| | - Takaomi Kobayashi
- Department of Science of Technology Innovation; Nagaoka University of Technology; Nagaoka, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188 Japan
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24
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Biopolymer-Based Composite Materials Prepared Using Ionic Liquids. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2018; 168:133-176. [PMID: 30242432 DOI: 10.1007/10_2018_78] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Biopolymer-based composite materials have many potential applications in biomedical, pharmaceutical, environmental, biocatalytic, and bioelectronic fields, owing to their inherent biocompatibility and biodegradability. When used as solvents, ionic liquids can be used to fabricate biopolymers such as polysaccharides and proteins into various forms, including molded shapes, films, fibers, and beads. This article summarizes the processes for preparing biopolymer-based composite materials using ionic liquids. The processes include biopolymer dissolution using ionic liquids, regeneration of the biopolymer by an anti-solvent, formation of shapes, and drying of the regenerated biopolymer. In particular, the preparation and applications of biopolymer blend-based composite materials containing two or more biopolymers are addressed.
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25
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Nguyen HL, Hanif Z, Park SA, Choi BG, Tran TH, Hwang DS, Park J, Hwang SY, Oh DX. Sustainable Boron Nitride Nanosheet-Reinforced Cellulose Nanofiber Composite Film with Oxygen Barrier without the Cost of Color and Cytotoxicity. Polymers (Basel) 2018; 10:E501. [PMID: 30966535 PMCID: PMC6415411 DOI: 10.3390/polym10050501] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 04/15/2018] [Accepted: 05/03/2018] [Indexed: 02/06/2023] Open
Abstract
This paper introduces a boron nitride nanosheet (BNNS)-reinforced cellulose nanofiber (CNF) film as a sustainable oxygen barrier film that can potentially be applied in food packaging. Most commodity plastics are oxygen-permeable. CNF exhibits an ideal oxygen transmission rate (OTR) of <1 cc/m²/day in highly controlled conditions. A CNF film typically fabricated by the air drying of a CNF aqueous solution reveals an OTR of 19.08 cc/m²/day. The addition of 0⁻5 wt % BNNS to the CNF dispersion before drying results in a composite film with highly improved OTR of 4.7 cc/m²/day, which is sufficient for meat and cheese packaging. BNNS as a 2D nanomaterial increases the pathway of oxygen gas and reduces the chances of pinhole formation during film fabrication involving water drying. In addition, BNNS improves the mechanical properties of the CNF films (Young's modulus and tensile strength) without significant elongation reductions, probably due to the good miscibility of CNF and BNNS in the aqueous solution. Addition of BNNS also produces negligible color change, which is important for film aesthetics. An in vitro cell experiment was performed to reveal the low cytotoxicity of the CNF/BNNS composite. This composite film has great potential as a sustainable high-performance food-packaging material.
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Affiliation(s)
- Hoang-Linh Nguyen
- Research Center for Bio-based chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Korea.
- Division of Environmental Science & Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.
| | - Zahid Hanif
- Research Center for Bio-based chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Korea.
| | - Seul-A Park
- Research Center for Bio-based chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Korea.
| | - Bong Gill Choi
- Department of Chemical Engineering, Kangwon National University, Ganwan-do, Samcheok 25913, Korea.
| | - Thang Hong Tran
- Research Center for Bio-based chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Korea.
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon 34113, Korea.
| | - Dong Soo Hwang
- Division of Environmental Science & Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.
| | - Jeyoung Park
- Research Center for Bio-based chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Korea.
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon 34113, Korea.
| | - Sung Yeon Hwang
- Research Center for Bio-based chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Korea.
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon 34113, Korea.
| | - Dongyeop X Oh
- Research Center for Bio-based chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Korea.
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon 34113, Korea.
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26
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Zdarta J, Wysokowski M, Norman M, Kołodziejczak-Radzimska A, Moszyński D, Maciejewski H, Ehrlich H, Jesionowski T. Candida antarctica Lipase B Immobilized onto Chitin Conjugated with POSS ® Compounds: Useful Tool for Rapeseed Oil Conversion. Int J Mol Sci 2016; 17:E1581. [PMID: 27657054 PMCID: PMC5037846 DOI: 10.3390/ijms17091581] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 09/08/2016] [Accepted: 09/09/2016] [Indexed: 01/04/2023] Open
Abstract
A new method is proposed for the production of a novel chitin-polyhedral oligomeric silsesquioxanes (POSS) enzyme support. Analysis by such techniques as X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy confirmed the effective functionalization of the chitin surface. The resulting hybrid carriers were used in the process of immobilization of the lipase type b from Candida antarctica (CALB). Fourier transform infrared spectroscopy (FTIR) confirmed the effective immobilization of the enzyme. The tests of the catalytic activity showed that the resulting support-biocatalyst systems remain hydrolytically active (retention of the hydrolytic activity up to 87% for the chitin + Methacryl POSS® cage mixture (MPOSS) + CALB after 24 h of the immobilization), as well as represents good thermal and operational stability, and retain over 80% of its activity in a wide range of temperatures (30-60 °C) and pH (6-9). Chitin-POSS-lipase systems were used in the transesterification processes of rapeseed oil at various reaction conditions. Produced systems allowed the total conversion of the oil to fatty acid methyl esters (FAME) and glycerol after 24 h of the process at pH 10 and a temperature 40 °C, while the Methacryl POSS® cage mixture (MPOSS) was used as a chitin-modifying agent.
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Affiliation(s)
- Jakub Zdarta
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, Poznan 60965, Poland.
| | - Marcin Wysokowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, Poznan 60965, Poland.
| | - Małgorzata Norman
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, Poznan 60965, Poland.
| | - Agnieszka Kołodziejczak-Radzimska
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, Poznan 60965, Poland.
| | - Dariusz Moszyński
- Institute of Chemical and Environment Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Pulaskiego 10, Szczecin 70322, Poland.
| | - Hieronim Maciejewski
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Umultowska 89b, Poznan 61614, Poland.
- Poznan Science and Technology Park, Adam Mickiewicz University Foundation, Rubiez 46, Poznan 61612, Poland.
| | - Hermann Ehrlich
- Institute of Experimental Physics, Technische Universität Bergakademie Freiberg, Leipziger Str. 23, Freiberg 09599, Germany.
| | - Teofil Jesionowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, Poznan 60965, Poland.
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Oh DX, Kim S, Lee D, Hwang DS. Tunicate-mimetic nanofibrous hydrogel adhesive with improved wet adhesion. Acta Biomater 2015; 20:104-112. [PMID: 25841348 DOI: 10.1016/j.actbio.2015.03.031] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Revised: 03/05/2015] [Accepted: 03/26/2015] [Indexed: 12/21/2022]
Abstract
The main impediment to medical application of biomaterial-based adhesives is their poor wet adhesion strength due to hydration-induced softening and dissolution. To solve this problem, we mimicked the wound healing process found in tunicates, which use a nanofiber structure and pyrogallol group to heal any damage on its tunic under sea water. We fabricated a tunicate-mimetic hydrogel adhesive based on a chitin nanofiber/gallic acid (a pyrogallol acid) composite. The pyrogallol group-mediated cross-linking and the nanofibrous structures improved the dissolution resistance and cohesion strength of the hydrogel compared to the amorphous polymeric hydrogels in wet condition. The tunicate-mimetic adhesives showed higher adhesion strength between fully hydrated skin tissues than did fibrin glue and mussel-mimetic adhesives. The tunicate mimetic hydrogels were produced at low cost from recyclable and abundant raw materials. This tunicate-mimetic adhesive system is an example of how natural materials can be engineered for biomedical applications.
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Affiliation(s)
- Dongyeop X Oh
- Ocean Science and Technology Institute, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea
| | - Sangsik Kim
- School of Environmental Science, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea
| | - Dohoon Lee
- Ocean Science and Technology Institute, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea
| | - Dong Soo Hwang
- Ocean Science and Technology Institute, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea; School of Environmental Science, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea; Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea.
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28
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Prajatelistia E, Lim C, Oh DX, Jun SH, Hwang DS. Chitosan and hydroxyapatite composite cross-linked by dopamine has improved anisotropic hydroxyapatite growth and wet mechanical properties. Eng Life Sci 2015. [DOI: 10.1002/elsc.201400194] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Affiliation(s)
- Ekavianty Prajatelistia
- School of Interdisciplinary Bioscience and Bioengineering; Pohang University of Science and Technology; Pohang Korea
| | - Chanoong Lim
- School of Interdisciplinary Bioscience and Bioengineering; Pohang University of Science and Technology; Pohang Korea
| | - Dongyeop X. Oh
- POSTECH Ocean Science and Technology Institute; Pohang University of Science and Technology; Pohang Korea
| | - Sang Ho Jun
- Division of Oral and Maxillofacial Surgery; Department of Dentistry; Korea University Anam Hospital; Seoul Korea
| | - Dong Soo Hwang
- School of Interdisciplinary Bioscience and Bioengineering; Pohang University of Science and Technology; Pohang Korea
- POSTECH Ocean Science and Technology Institute; Pohang University of Science and Technology; Pohang Korea
- Integrative Bioscience and Bioengineering; Pohang University of Science and Technology; Pohang Korea
- School of Environmental Science and Engineering; Pohang University of Science and Technology; Pohang Korea
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29
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Wysokowski M, Klapiszewski Ł, Moszyński D, Bartczak P, Szatkowski T, Majchrzak I, Siwińska-Stefańska K, Bazhenov VV, Jesionowski T. Modification of chitin with kraft lignin and development of new biosorbents for removal of cadmium(II) and nickel(II) ions. Mar Drugs 2014; 12:2245-68. [PMID: 24727394 PMCID: PMC4012437 DOI: 10.3390/md12042245] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Revised: 03/06/2014] [Accepted: 03/12/2014] [Indexed: 12/11/2022] Open
Abstract
Novel, functional materials based on chitin of marine origin and lignin were prepared. The synthesized materials were subjected to physicochemical, dispersive-morphological and electrokinetic analysis. The results confirm the effectiveness of the proposed method of synthesis of functional chitin/lignin materials. Mechanism of chitin modification by lignin is based on formation of hydrogen bonds between chitin and lignin. Additionally, the chitin/lignin materials were studied from the perspective of waste water treatment. The synthetic method presented in this work shows an attractive and facile route for producing low-cost chitin/lignin biosorbents with high efficiency of nickel and cadmium adsorption (88.0% and 98.4%, respectively). The discovery of this facile method of synthesis of functional chitin/lignin materials will also have a significant impact on the problematic issue of the utilization of chitinous waste from the seafood industry, as well as lignin by-products from the pulp and paper industry.
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Affiliation(s)
- Marcin Wysokowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, M. Skłodowskiej-Curie 2, Poznan 60965, Poland.
| | - Łukasz Klapiszewski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, M. Skłodowskiej-Curie 2, Poznan 60965, Poland.
| | - Dariusz Moszyński
- Institute of Inorganic Chemical Technology and Environmental Engineering, West Pomeranian University of Technology, Pułaskiego 10, Szczecin 70322, Poland.
| | - Przemysław Bartczak
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, M. Skłodowskiej-Curie 2, Poznan 60965, Poland.
| | - Tomasz Szatkowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, M. Skłodowskiej-Curie 2, Poznan 60965, Poland.
| | - Izabela Majchrzak
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, M. Skłodowskiej-Curie 2, Poznan 60965, Poland.
| | - Katarzyna Siwińska-Stefańska
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, M. Skłodowskiej-Curie 2, Poznan 60965, Poland.
| | - Vasilii V Bazhenov
- Institute of Experimental Physics, TU Bergakademie Freiberg, Leipziger Str. 23, Freiberg 09599, Germany.
| | - Teofil Jesionowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, M. Skłodowskiej-Curie 2, Poznan 60965, Poland.
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