1
|
Laurén I, Farzan A, Teotia A, Lindfors NC, Seppälä J. Direct ink writing of biocompatible chitosan/non-isocyanate polyurethane/cellulose nanofiber hydrogels for wound-healing applications. Int J Biol Macromol 2024; 259:129321. [PMID: 38218294 DOI: 10.1016/j.ijbiomac.2024.129321] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/22/2023] [Accepted: 01/05/2024] [Indexed: 01/15/2024]
Abstract
The demand for new biocompatible and 3D printable materials for biomedical applications is on the rise. Ideally, such materials should exhibit either biodegradability or recyclability, possess antibacterial properties, and demonstrate remarkable biocompatibility with no cytotoxic effects. In this research, we synthesized biocompatible and 3D printable hydrogels tailored for biomedical applications, such as wound healing films, by combining antibacterial double-quaternized chitosan (DQC) with cystamine-based non-isocyanate polyurethane (NIPU-Cys) - a material renowned for enhancing both the flexibility and mechanical properties of the hydrogels. To improve the rheological behavior, swelling attributes, and printability, cellulose nanofibrils were introduced into the matrix. We investigated the impact of DQC on degradability, swelling capacity, rheological behavior, printability, and cell biocompatibility. The slightly cytotoxic nature associated with quaternary chitosan was evaluated, and the optimal concentration of DQC in the hydrogel was determined to ensure biocompatibility. The resulting hydrogels were found to be suitable materials for 3D printing via a direct ink writing technique (DIW), producing porous, biocompatible hydrogels endowed with valuable attributes suitable for various wound-healing applications.
Collapse
Affiliation(s)
- Isabella Laurén
- Polymer Technology, School of Chemical Engineering, Aalto University, 02150 Espoo, Finland
| | - Afsoon Farzan
- Polymer Technology, School of Chemical Engineering, Aalto University, 02150 Espoo, Finland
| | - Arun Teotia
- Polymer Technology, School of Chemical Engineering, Aalto University, 02150 Espoo, Finland
| | - Nina C Lindfors
- Department of Hand Surgery, Helsinki University Hospital, University of Helsinki, 00290 Helsinki, Finland
| | - Jukka Seppälä
- Polymer Technology, School of Chemical Engineering, Aalto University, 02150 Espoo, Finland.
| |
Collapse
|
2
|
Akram N, Shahzadi I, Zia KM, Saeed M, Ali A, Al-Salahi R, Abuelizz HA, Verpoort F. Fabrication and In Vitro Biological Assay of Thermo-Mechanically Tuned Chitosan Reinforced Polyurethane Composites. Molecules 2023; 28:7218. [PMID: 37894696 PMCID: PMC10608899 DOI: 10.3390/molecules28207218] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/23/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
The progressive trend of utilizing bioactive materials constitutes diverse materials exhibiting biocompatibility. The innovative aspect of this research is the tuning of the thermo-mechanical behavior of polyurethane (PU) composites with improved biocompatibility for vibrant applications. Polycaprolactone (CAPA) Mn = 2000 g-mol-1 was used as a macrodiol, along with toluene diisocyanate (TDI) and hexamethylene diisocyanate (HMDI), to develop prepolymer chains, which were terminated with 1,4 butane diol (BD). The matrix was reinforced with various concentrations of chitosan (1-5 wt %). Two series of PU composites (PUT/PUH) based on aromatic and aliphatic diisocyanate were prepared by varying the hard segment (HS) ratio from 5 to 30 (wt %). The Fourier-transformed infrared (FTIR) spectroscopy showed the absence of an NCO peak at 1730 cm-1 in order to confirm polymer chain termination. Thermal gravimetric analysis (TGA) showed optimum weight loss up to 500 °C. Dynamic mechanical analysis (DMA) showed the complex modulus (E*) ≥ 200 MPa. The scanning electron microscope (SEM) proved the ordered structure and uniform distribution of chain extender in PU. The hemolytic activities were recorded up to 15.8 ± 1.5% for the PUH series. The optimum values for the inhibition of biofilm formation were recorded as 46.3 ± 1.8% against E. coli and S. aureus (%), which was supported by phase contrast microscopy.
Collapse
Affiliation(s)
- Nadia Akram
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan; (I.S.); (K.M.Z.); (M.S.); (A.A.)
| | - Iram Shahzadi
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan; (I.S.); (K.M.Z.); (M.S.); (A.A.)
| | - Khalid Mahmood Zia
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan; (I.S.); (K.M.Z.); (M.S.); (A.A.)
| | - Muhammad Saeed
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan; (I.S.); (K.M.Z.); (M.S.); (A.A.)
| | - Akbar Ali
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan; (I.S.); (K.M.Z.); (M.S.); (A.A.)
| | - Rashad Al-Salahi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (R.A.-S.); (H.A.A.)
| | - Hatem A. Abuelizz
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (R.A.-S.); (H.A.A.)
| | - Francis Verpoort
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;
| |
Collapse
|
3
|
Huang M, Xie L, Wang Y, Feng X, Gao J, Lou Z, Xiong Y. Efficient and selective capture of uranium by polyethyleneimine-modified chitosan composite microspheres from radioactive nuclear waste. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 316:120550. [PMID: 36328284 DOI: 10.1016/j.envpol.2022.120550] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Uranium extraction from radioactive nuclear waste is vital for sustainable energy supply and ecological security. Herein, a polyethyleneimine-chitosan composite microspheres n-PEI/ECH-CTS (n = 0.1, 0.2, 0.3, 0.4, 0.5) were synthetized for efficient and selective uranium adsorption. The prepared chitosan microspheres with uniform size, uniform dispersion and good mechanical strength combine cost-effectiveness and environmental benefits. The 0.4-PEI/ECH-CTS exhibits the highest adsorption capacity of 380.65 mg g-1 within only 4 h due to high nitrogen content of 6.57 mol kg-1. The DFT calculations confirms that the optimal coordination mode of UO22+ and 0.4-PEI/ECH-CTS is one UO22+ chelated with two -NH2 from two adsorption units, respectively. Adsorption efficiency of U(VI) from simulated nuclear wastewater achieves to 100%, and the Kd value is up to 1.1 × 104 mL g-1, which is 1.7 × 104-6.1 × 104 times that of coexisting ions. The CU(VI) reduces in simulated wastewater from 10.98 mg L-1 to 1 μg L-1, which is well below the US Environmental Protection Agency uranium limits for drinking water (30 μg L-1). Besides, 0.4-PEI/ECH-CTS still maintains above 95% adsorption efficiency after seven cycles. In short, the 0.4-PEI/ECH-CTS microspheres integrate high performance, practicality and cost-effectiveness, which has great advantages in practical industrial applications.
Collapse
Affiliation(s)
- Mengnan Huang
- College of Chemistry, Key Laboratory of Rare-scattered Elements of Liaoning Province, Liaoning University, Shenyang 110036, PR China
| | - Lisha Xie
- College of Chemistry, Key Laboratory of Rare-scattered Elements of Liaoning Province, Liaoning University, Shenyang 110036, PR China
| | - Yuejiao Wang
- College of Chemistry, Key Laboratory of Rare-scattered Elements of Liaoning Province, Liaoning University, Shenyang 110036, PR China
| | - Xiaogeng Feng
- College of Chemistry, Key Laboratory of Rare-scattered Elements of Liaoning Province, Liaoning University, Shenyang 110036, PR China
| | - Jing Gao
- College of Chemistry, Key Laboratory of Rare-scattered Elements of Liaoning Province, Liaoning University, Shenyang 110036, PR China
| | - Zhenning Lou
- College of Chemistry, Key Laboratory of Rare-scattered Elements of Liaoning Province, Liaoning University, Shenyang 110036, PR China
| | - Ying Xiong
- College of Chemistry, Key Laboratory of Rare-scattered Elements of Liaoning Province, Liaoning University, Shenyang 110036, PR China.
| |
Collapse
|
4
|
Guo Y, Wang M, Liu Q, Liu G, Wang S, Li J. Recent advances in the medical applications of hemostatic materials. Theranostics 2023; 13:161-196. [PMID: 36593953 PMCID: PMC9800728 DOI: 10.7150/thno.79639] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 11/14/2022] [Indexed: 12/03/2022] Open
Abstract
Bleeding caused by trauma or surgery is a serious health problem, and uncontrollable bleeding can result in death. Therefore, developing safe, effective, and convenient hemostatic materials is important. Active hemostatic agents currently used to investigate the field of hemostasis are divided into four broad categories: natural polymers, synthetic polymers, inorganic materials, and metal-containing materials. Hemostatic materials are prepared in various forms for wound care applications based on the active ingredients used. These materials include nanofibers, gels, sponges, and nanoparticles. Hemostatic materials find their applications in the field of wound care, and they are also used for hemostasis during malignant tumor surgery. Prompt and effective hemostasis can reduce the possibility of the spread of tumor cells with blood. This review discusses the outcomes of current research conducted in the field and the problems persisting in the field of developing hemostatic materials. The review also presents a platform for the further development of hemostatic materials. Bleeding caused by trauma or surgery is a serious health problem, and uncontrollable bleeding can result in death. Therefore, developing safe, effective, and convenient hemostatic materials is important. Active hemostatic agents currently used to investigate the field of hemostasis are divided into four broad categories: natural polymers, synthetic polymers, inorganic materials, and metal-containing materials. Hemostatic materials are prepared in various forms for wound care applications based on the active ingredients used. These materials include nanofibers, gels, sponges, and nanoparticles. Hemostatic materials find their applications in the field of wound care, and they are also used for hemostasis during malignant tumor surgery. Prompt and effective hemostasis can reduce the possibility of the spread of tumor cells with blood. This review discusses the outcomes of current research conducted in the field and the problems persisting in the field of developing hemostatic materials. The review also presents a platform for the further development of hemostatic materials.
Collapse
Affiliation(s)
- Yu Guo
- Department of the General Surgery, Jilin University Second Hospital, Changchun, China
| | - Min Wang
- Department of the General Surgery, Jilin University Second Hospital, Changchun, China
| | - Qi Liu
- Department of the General Surgery, Jilin University Second Hospital, Changchun, China
| | - Guoliang Liu
- Department of Operating Theater and Anesthesiology, Jilin University Second Hospital, Changchun, China
| | - Shuang Wang
- Department of the Dermatology, Jilin University Second Hospital, Changchun, China.,✉ Corresponding authors: Shuang Wang, E-mail: , Department of the Dermatology, Jilin University Second Hospital, Changchun, China. Jiannan Li, E-mail: , Department of the General Surgery, Jilin University Second Hospital, Changchun, China
| | - Jiannan Li
- Department of the General Surgery, Jilin University Second Hospital, Changchun, China.,✉ Corresponding authors: Shuang Wang, E-mail: , Department of the Dermatology, Jilin University Second Hospital, Changchun, China. Jiannan Li, E-mail: , Department of the General Surgery, Jilin University Second Hospital, Changchun, China
| |
Collapse
|
5
|
Nam JY, Song YS. Preparation and analysis of biodegradable polydioxanone/chitosan film. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03082-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
6
|
Lou W, Dai Z, Jiang P, Zhang P, Bao Y, Gao X, Xia J, Haryono A. Development of soybean oil‐based aqueous polyurethanes and the effect of hydroxyl value on its properties. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wenxue Lou
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, International Joint Research Laboratory for Biomass Conversion Technology at Jiangnan University, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Zhuding Dai
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, International Joint Research Laboratory for Biomass Conversion Technology at Jiangnan University, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Pingping Jiang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, International Joint Research Laboratory for Biomass Conversion Technology at Jiangnan University, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Pingbo Zhang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, International Joint Research Laboratory for Biomass Conversion Technology at Jiangnan University, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Yanmin Bao
- Research and development department Jiangsu Caihua Packaging Group Company Kunshan China
| | - Xuewen Gao
- Research and development department Jiangsu Caihua Packaging Group Company Kunshan China
| | - Jialiang Xia
- Research and development department Jiangsu Caihua Packaging Group Company Kunshan China
| | - Agus Haryono
- Research Center for Chemistry Indonesian Institute of Sciences (LIPI) Serpong Indonesia
| |
Collapse
|
7
|
Shehzad H, Farooqi ZH, Ahmed E, Sharif A, Razzaq S, Mirza FN, Irfan A, Begum R. Synthesis of hybrid biosorbent based on 1,2-cyclohexylenedinitrilotetraacetic acid modified crosslinked chitosan and organo-functionalized calcium alginate for adsorptive removal of Cu(II). Int J Biol Macromol 2022; 209:132-143. [PMID: 35390398 DOI: 10.1016/j.ijbiomac.2022.04.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 03/30/2022] [Accepted: 04/03/2022] [Indexed: 12/27/2022]
Abstract
The present study is based on the synthesis of a novel hybrid biosorbent using 1,2-cyclohexylenedinitrilotetraacetic acid modified crosslinked chitosan and amino-thiocarbamate moiety functionalized sodium alginate (CDTA-CS/TSC-CA). The fabricated sorbent was employed to investigate the efficient recovery of Cu(II) from aqueous media. CDTA-CS/TSC-CA was characterized using Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). Analysis confirmed the successful modification of both biopolymers and subsequent loading of Cu(II) ions. CDTA-CS/TSC-CA was casted in the form of hydrogel beads having different CDTA-CS to TSC-CA mass ratios i.e., 10.0-40.0% by mass. The hydrogel beads 4CDTA-CS/TSC-CA with CDTA-CS/TSC-CA mass ratio of 40.0% was found most effective for copper sorption. Equilibrium sorption results showed that initial concentration of copper, medium pH, contact time, sorbent dosage and temperature influenced the sorption capacity (qe). Rate of sorption data was interpreted using different kinetic models and found best fitted with pseudo second order rate expression (R2 ≈ 0.99), illustrating that the rate determining step includes the electron density transfer from sorbent coordination sites to central copper ions. Crank's RIDE equation and Elovich chemisorption model (ECM) revealed the presence of two sorption phases, initially rapid sorption followed by comparatively a slow uptake. Equilibrium sorption data was well depicted by Langmuir model and maximum monolayer adsorption capacity (qm) was computed as 276.53 mg·g-1 at 298 K. Standard Gibbs free energy change, ∆G° (-19.99, -20.18 and -20.36 kJ/ mol), standard enthalpy change, ∆H° (-8.95 kJmol) and standard entropy change, ∆S° (0.04 kJ/mol K-1) values suggested that the adsorption process is spontaneous and exothermic. Hence, 4CDTA-CS/TSC-CA was found efficient biosorbent for copper removal from its dilute effluents.
Collapse
Affiliation(s)
- Hamza Shehzad
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Zahoor H Farooqi
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan.
| | - Ejaz Ahmed
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Ahsan Sharif
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan.
| | - Sana Razzaq
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Fatima Noor Mirza
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Ahmad Irfan
- Department of Chemistry, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia; Research Center for Advanced Materials Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Robina Begum
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| |
Collapse
|
8
|
Amiryaghoubi N, Noroozi Pesyan N, Fathi M, Omidi Y. The design of polycaprolactone-polyurethane/chitosan composite for bone tissue engineering. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
9
|
Yee Kuen C, Masarudin MJ. Chitosan Nanoparticle-Based System: A New Insight into the Promising Controlled Release System for Lung Cancer Treatment. Molecules 2022; 27:473. [PMID: 35056788 PMCID: PMC8778092 DOI: 10.3390/molecules27020473] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/15/2021] [Accepted: 03/25/2021] [Indexed: 12/24/2022] Open
Abstract
Lung cancer has been recognized as one of the most often diagnosed and perhaps most lethal cancer diseases worldwide. Conventional chemotherapy for lung cancer-related diseases has bumped into various limitations and challenges, including non-targeted drug delivery, short drug retention period, low therapeutic efficacy, and multidrug resistance (MDR). Chitosan (CS), a natural polymer derived from deacetylation of chitin, and comprised of arbitrarily distributed β-(1-4)-linked d-glucosamine (deacetylated unit) and N-acetyl-d-glucosamine (acetylated unit) that exhibits magnificent characteristics, including being mucoadhesive, biodegradable, and biocompatible, has emerged as an essential element for the development of a nano-particulate delivery vehicle. Additionally, the flexibility of CS structure due to the free protonable amino groups in the CS backbone has made it easy for the modification and functionalization of CS to be developed into a nanoparticle system with high adaptability in lung cancer treatment. In this review, the current state of chitosan nanoparticle (CNP) systems, including the advantages, challenges, and opportunities, will be discussed, followed by drug release mechanisms and mathematical kinetic models. Subsequently, various modification routes of CNP for improved and enhanced therapeutic efficacy, as well as other restrictions of conventional drug administration for lung cancer treatment, are covered.
Collapse
Affiliation(s)
- Cha Yee Kuen
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
| | - Mas Jaffri Masarudin
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
- UPM-MAKNA Cancer Research Laboratory, Institute of Biosciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| |
Collapse
|
10
|
Chen H, Zhang J, Wu H, Li Y, Li X, Zhang J, Huang L, Deng S, Tan S, Cai X. Fabrication of a Cu Nanoparticles/Poly(ε-caprolactone)/Gelatin Fiber Membrane with Good Antibacterial Activity and Mechanical Property via Green Electrospinning. ACS APPLIED BIO MATERIALS 2021; 4:6137-6147. [PMID: 35006926 DOI: 10.1021/acsabm.1c00485] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
To improve the antibacterial effect of a poly(ε-caprolactone)/gelatin (PCL/Gt) composite, Cu nanoparticles (Cu NPs) were synthesized as an antibacterial agent, and a Cu NPs/PCL/Gt fiber membrane was thus fabricated via green electrospinning. The results showed that the Cu NPs/PCL/Gt fiber membrane with a uniform and complete structure exhibited high porosity and water absorption, favorable hydrophilicity, good mechanical and thermal properties, and satisfactory antibacterial activity. The easy preparation and good comprehensive property implied the great potential application of the Cu NPs/PCL/Gt fiber membrane in various fields (e.g., wound dressing and antibacterial clothing). In addition, the synthesis in this work would offer a promising approach for the preparation of a metal nanoparticle/polymer fiber material with good antibacterial property.
Collapse
Affiliation(s)
- Huakai Chen
- Guangdong Engineering & Technology Research Centre of Graphene-like Materials and Products, Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China
| | - Jinglin Zhang
- Guangdong Engineering & Technology Research Centre of Graphene-like Materials and Products, Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China.,Department of Light Chemical Engineering, Guangdong Polytechnic, Foshan 528041, P. R. China
| | - Haoping Wu
- Guangdong Engineering & Technology Research Centre of Graphene-like Materials and Products, Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China
| | - Yongjun Li
- Guangdong Engineering & Technology Research Centre of Graphene-like Materials and Products, Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China
| | - Xiao Li
- Guangdong Engineering & Technology Research Centre of Graphene-like Materials and Products, Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China
| | - Jingxian Zhang
- Guangdong Engineering & Technology Research Centre of Graphene-like Materials and Products, Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China
| | - Langhuan Huang
- Guangdong Engineering & Technology Research Centre of Graphene-like Materials and Products, Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China
| | - Suiping Deng
- Guangdong Engineering & Technology Research Centre of Graphene-like Materials and Products, Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China
| | - Shaozao Tan
- Guangdong Engineering & Technology Research Centre of Graphene-like Materials and Products, Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China
| | - Xiang Cai
- Department of Light Chemical Engineering, Guangdong Polytechnic, Foshan 528041, P. R. China
| |
Collapse
|
11
|
Synthesis and Physicochemical Characteristics of Chitosan-Based Polyurethane Flexible Foams. Processes (Basel) 2021. [DOI: 10.3390/pr9081394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The use of shrimp waste to obtain chitosan (Ch) is an essential issue, considering a circular economy, waste management, and its application to environmentally friendly materials. In this study, northern prawn shells were utilized to obtain Ch, which could then be used for synthesizing chitosan-based polyurethane (PUR+Ch) foams with different Ch concentration. The chemical structure, morphology, hardness, thermal properties, viscoelastic properties, and sorption properties in relation to oil and water of these materials were determined. The results present that the addition of Ch into PUR influences the physicochemical characteristics and properties of the tested materials. PUR+Ch foams with 1–3 wt% Ch had more open cells and were softer than neat PUR. PUR+Ch1 had the best thermal properties. PUR+Ch2 foam with 2 wt% Ch as a whole was characterized as having the highest water sorption. The PUR+Ch1 foam with 1 wt% Ch had the best oil sorption. This paper shows that the modification of PUR by Ch is a very promising solution, and PUR+Ch foams can be applied in the water treatment of oil spills, which can be dangerous to the water environment.
Collapse
|
12
|
Application of Shrimp Waste for the Synthesis of Polyurethane–Chitosan Materials with Potential Use in Sorption of Oil Micro-Spills in Water Treatment. SUSTAINABILITY 2021. [DOI: 10.3390/su13095098] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Shrimp waste is a common waste in seafood processing. It is used as part of the fish meal which is added to feed. Bearing in mind the Green Deal and sustainability development, it was proposed to use northern prawn shells to obtain chitosan (Ch), which could then be used for polyurethane (PUR) modification. In ports, oil micro-spills often flow into the waters of gulfs and, consequently, into the sea. Systematic chemical and petroleum water pollution may pose a threat to flora and fauna. In this study, chitosan, which was obtained from shrimp shells, was used to synthesize polyurethane–chitosan foams (PUR+Ch) with different chitosan concentrations. Selected physico-chemical and sorption properties in relation to oil and water of these materials were determined. It was found that the amount of Ch added to the foam affected its morphology, hardness, density, and thermal and sorption properties. PUR foam with a 1.5% weight of Ch was characterized as having the highest water and oil sorption. The advantages of the tested material as an innovative product with potentially significant proecological values were estimated using strengths–weaknesses–opportunities–threats (SWOT) analysis. The conducted preliminary research made it possible to demonstrate the use of these materials in the processes of water treatment with the mentioned micropollutants.
Collapse
|