1
|
Sarwar T, Raza ZA, Nazeer MA, Khan A. Synthesis of aminolyzed gelatin-mediated chitosan as pH-responsive drug-carrying porous scaffolds. Int J Biol Macromol 2024; 256:128525. [PMID: 38040168 DOI: 10.1016/j.ijbiomac.2023.128525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 11/16/2023] [Accepted: 11/28/2023] [Indexed: 12/03/2023]
Abstract
Bio-based drug delivery devices have gained enormous interest in the biomedical field due to their biocompatible attributes. Extensive research is being conducted on chitosan-based devices for drug delivery applications. Chitosan being hydrophobic under neutral conditions makes it difficult to interact with a polar drug of curcumin. We tended to make it polar through sol-gel synthesis and modification via PEGylation, alkaline hydrolysis, and aminolysis. Such alterations could make the chitosan-based scaffolds porous, hydrophilic, amino-functionalized, and pH-responsive. The ninhydrin assay confirmed that a successful aminolysis occurred, and the chemical interaction among the precursors was explained under infrared spectroscopy. The scanning morphology of the optimum aminolyzed membrane appeared to be porous with an average pore size of 320 ± 20 nm. The aminolyzed chitosan membrane was found thermally stable up to 310 °C, hydrophilic with a water contact angle of 23.4°, moderate flowablity, and porous (97 ± 5 %, w/w) against ethanol. The curcumin-loaded chitosan membrane expressed the UV-protection behavior of 99 %. The curcumin-loading and release phenomena were found pH-responsive. The curcumin release results were evaluated through specific kinetic models. This study could be the first report on the amphiphilic, porous, and swellable drug-loaded gelatin/chitosan membrane with pH-responsive loading and release of curcumin for potential drug delivery applications.
Collapse
Affiliation(s)
- Tanzeel Sarwar
- Department of Applied Sciences, National Textile University, Faisalabad 37610, Pakistan
| | - Zulfiqar Ali Raza
- Department of Applied Sciences, National Textile University, Faisalabad 37610, Pakistan.
| | - Muhammad Anwaar Nazeer
- School of Engineering and Technology, National Textile University, Faisalabad 37610, Pakistan
| | - Amina Khan
- Department of Applied Sciences, National Textile University, Faisalabad 37610, Pakistan
| |
Collapse
|
2
|
Recupido F, Lama GC, Steffen S, Dreyer C, Seidlitz H, Russo V, Lavorgna M, De Luca Bossa F, Silvano S, Boggioni L, Verdolotti L. Efficient recycling pathway of bio-based composite polyurethane foams via sustainable diamine. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 269:115758. [PMID: 38128448 DOI: 10.1016/j.ecoenv.2023.115758] [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: 10/01/2023] [Revised: 11/09/2023] [Accepted: 11/26/2023] [Indexed: 12/23/2023]
Abstract
Aminolysis is widely recognized as a valuable chemical route for depolymerizing polymeric materials containing ester, amide, or urethane functional groups, including polyurethane foams. Bio-based polyurethane foams, pristine and reinforced with 40 wt% of sustainable fillers, were depolymerized in the presence of bio-derived butane-1,4-diamine, BDA. A process comparison was made using fossil-derived ethane-1,2-diamine, EDA, by varying amine/polyurethane ratio (F/A, 1:1 and 1:0.6). The obtained depolymerized systems were analyzed by FTIR and NMR characterizations to understand the effect of both diamines on the degradation pathway. The use of bio-based BDA seemed to be more effective with respect to conventional EDA, owing to its stronger basicity (and thus higher nucleophilicity), corresponding to faster depolymerization rates. BDA-based depolymerized systems were then employed to prepare second-generation bio-based composite polyurethane foams by partial replacement of isocyanate components (20 wt%). The morphological, mechanical, and thermal conductivity properties of the second-generation polyurethane foams were evaluated. The best performances (σ10 %=71 ± 9 kPa, λ = 0.042 ± 0.015 W∙ m-1 ∙K-1) were attained by employing the lowest F/A ratio (1:0.6); this demonstrates their potential application in different sectors such as packaging or construction, fulfilling the paradigm of the circular economy.
Collapse
Affiliation(s)
- Federica Recupido
- Institute of Polymers, Composites and Biomaterials, Italian National Research Council, P.le. E. Fermi 1, 80055 Portici, Naples, Italy
| | - Giuseppe Cesare Lama
- Institute of Polymers, Composites and Biomaterials, Italian National Research Council, P.le. E. Fermi 1, 80055 Portici, Naples, Italy
| | - Sebastian Steffen
- Fraunhofer-Institute for Applied Polymer Research IAP Research Division Polymeric Materials and Composites PYCO, Schmiedestrasse 5, 15745 Wildau, Germany
| | - Christian Dreyer
- Fraunhofer-Institute for Applied Polymer Research IAP Research Division Polymeric Materials and Composites PYCO, Schmiedestrasse 5, 15745 Wildau, Germany
| | - Holger Seidlitz
- Fraunhofer-Institute for Applied Polymer Research IAP Research Division Polymeric Materials and Composites PYCO, Schmiedestrasse 5, 15745 Wildau, Germany
| | - Vincenzo Russo
- Department of Chemical Sciences, University of Naples, Federico II, Via Cinthia 4, 80126 Naples, Italy
| | - Marino Lavorgna
- Institute of Polymers, Composites and Biomaterials, Italian National Research Council, P.le. E. Fermi 1, 80055 Portici, Naples, Italy
| | - Ferdinando De Luca Bossa
- Institute of Polymers, Composites and Biomaterials, Italian National Research Council, P.le. E. Fermi 1, 80055 Portici, Naples, Italy
| | - Selena Silvano
- Institute of Chemical Sciences and Technologies "G. Natta, Italian National Research Council, Via A. Corti 12, 20133 Milan, Italy
| | - Laura Boggioni
- Institute of Chemical Sciences and Technologies "G. Natta, Italian National Research Council, Via A. Corti 12, 20133 Milan, Italy.
| | - Letizia Verdolotti
- Institute of Polymers, Composites and Biomaterials, Italian National Research Council, P.le. E. Fermi 1, 80055 Portici, Naples, Italy.
| |
Collapse
|
3
|
Aoki S, Yoshida T, Nguyen HK, Nakajima K, Hirai T, Nakamura Y, Fujii S. Nonspherical Epoxy Resin Polymer Particles Synthesized via Solvent-Free Polyaddition Reactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:5872-5879. [PMID: 37039828 DOI: 10.1021/acs.langmuir.3c00311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Cubic liquid marbles (LMs) were fabricated by using various epoxy monomers as internal liquids and millimeter-sized polymer plates as stabilizers. Successively, cubic polymer particles were synthesized via solvent-free polyaddition reactions by exposing the cubic LMs to NH3 vapor used as a curing agent. The effect of the solubility parameters (SPs) for the epoxy monomers on the formation of the cubic polymer particles was investigated. As a result, we succeeded in fabricating cubic polymer particles reflecting the shapes of the original LMs by using epoxy monomers with SP values of 23.70-21.66 (MPa)1/2. Furthermore, the shapes of the LMs could be controlled on demand (e.g., pentahedral and rectangular) by control of the number of polymer plates per LM and/or coalescence of the LMs, resulting in fabrication of polymer particles with shapes reflecting those of the LMs.
Collapse
Affiliation(s)
- Shoichiro Aoki
- Division of Applied Chemistry, Environmental and Biomedical Engineering, Graduate School of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
| | - Tatsuro Yoshida
- Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
| | - Hung K Nguyen
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro, Tokyo 152-8552, Japan
| | - Ken Nakajima
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro, Tokyo 152-8552, Japan
| | - Tomoyasu Hirai
- Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
- Nanomaterials Microdevices Research Center, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
| | - Yoshinobu Nakamura
- Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
- Nanomaterials Microdevices Research Center, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
| | - Syuji Fujii
- Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
- Nanomaterials Microdevices Research Center, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
| |
Collapse
|
4
|
Zhang P, Chen X, Bu F, Chen C, Huang L, Xie Z, Li G, Wang X. Dual Coordination between Stereochemistry and Cations Endows Polyethylene Terephthalate Fabrics with Diversiform Antimicrobial Abilities for Attack and Defense. ACS APPLIED MATERIALS & INTERFACES 2023; 15:9926-9939. [PMID: 36774642 DOI: 10.1021/acsami.2c19323] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Modification of fabrics by stereochemical antiadhesion strategies is an emerging approach to antimicrobial fabric finishing. However, a purely antiadhesive fabric cannot avoid the passive adhesion of pathogenic microorganisms. To address this issue, borneol 4-formylbenzoate (BF) with a stereochemical structure is introduced into a cationic polymer PEI-modified PET fabric by a simple two-step method. The obtained fabric exhibits remarkable features of high bactericidal activity, excellent resistance to bacterial adhesion, desirable fungal repellent performance, and low cytotoxicity. More impressively, this modified fabric not only effectively reduces microbial contamination during food preservation but also plays a role in avoiding infection and accelerating wound healing in the mouse wound model. The dual coordination between stereochemistry and cations is validated as a viable "attack and defense" antimicrobial strategy, providing an effective guide for diversiform antimicrobial designs.
Collapse
Affiliation(s)
- Pengfei Zhang
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Xinyu Chen
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Fanqiang Bu
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Chen Chen
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Lifei Huang
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Zixu Xie
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Guofeng Li
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Xing Wang
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| |
Collapse
|
5
|
Cao F, Wang L, Zheng R, Guo L, Chen Y, Qian X. Research and progress of chemical depolymerization of waste PET and high-value application of its depolymerization products. RSC Adv 2022; 12:31564-31576. [PMID: 36380916 PMCID: PMC9632252 DOI: 10.1039/d2ra06499e] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 10/28/2022] [Indexed: 09/06/2023] Open
Abstract
PET (polyethylene terephthalate) has good transparency, corrosion resistance, gas barrier properties and mechanical properties, and is widely used in beverage bottles, fabrics, food packaging, tires, films, engineering plastics and other fields. With the rapid growth in demand and use of PET materials, the pollution of waste PET to the environment has become increasingly prominent. The recycling methods of waste PET mainly include primary recycling, mechanical recycling, chemical recycling, and energy recycling. The chemical recycling method is of great significance for solving environmental problems and reducing the plastic industry's dependence on petrochemical resources, and is an inevitable choice for realizing PET closed-loop recycling. In this paper, the chemical depolymerization methods of waste PET, the types of alcoholysis catalysts with the greatest possibility of industrialization, and the high-value application research of chemical recovery products are reviewed in order to have a good reference significance and promote the recycling and high-value utilization of waste PET.
Collapse
Affiliation(s)
- Fan Cao
- School of Petrochemical Engineering, Shenyang University of Technology Liaoyang 111003 China
| | - Liyan Wang
- School of Petrochemical Engineering, Shenyang University of Technology Liaoyang 111003 China
| | - Rongrong Zheng
- School of Petrochemical Engineering, Shenyang University of Technology Liaoyang 111003 China
| | - Liying Guo
- School of Petrochemical Engineering, Shenyang University of Technology Liaoyang 111003 China
| | - Yanming Chen
- School of Petrochemical Engineering, Shenyang University of Technology Liaoyang 111003 China
| | - Xin Qian
- Liaoning Shengda Environmental Resources Group Co., Ltd Liaoyang 111003 China
| |
Collapse
|