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Aijaz MO, Alnaser IA, Farooq I, Siddiqui MIH, Yang SB, Shakeel F, Karim MR. Developing novel multifunctional protective clothes for disabled individuals using bio-based electrospun nanofibrous membranes. Int J Biol Macromol 2024; 275:133598. [PMID: 38960244 DOI: 10.1016/j.ijbiomac.2024.133598] [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: 04/21/2024] [Revised: 06/12/2024] [Accepted: 06/29/2024] [Indexed: 07/05/2024]
Abstract
A novel kind of protective apparel for handicapped persons has been created with bio-based electrospun nanofibrous (NFs) membranes. Hydrophobic membranes with fine polylactic acid (PLA) NFs had a smooth, bead-less structure with an average diameter of 950 nm. The hydrophilic layer has a similar pattern but a smaller fiber diameter dispersion and an average diameter of 750 nm. The silica nanoparticle-modified super-hydrophobic top layer (contact angle, ~153°) repels water and keeps the user dry. Super-hydrophilic silver nanoparticles in the fabric's bottom layer react with perspiration to kill microorganisms. The fabric's porosity (avg. 1.2-1.5 μm) allows for breathability, while silica nanoparticles boost infrared radiation reflection, keeping users cool on hot days. The dual-layer textile has 4.9 MPa ultimate tensile strength and 68 % elongation compared to the membrane's super-hydrophobic and super-hydrophilic layers. Wearing protective clothes reduced hand temperature by 25 % in direct sunlight and 13 % in a sun simulator with 1 Sun. This fabric will work well for adult diapers, outdoor clothing, and disability accessories. Overall, the protective textiles may improve the quality of life for disabled and elderly people by providing usable textile items adapted to their needs.
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Affiliation(s)
- Muhammad Omer Aijaz
- Center of Excellence for Research in Engineering Materials (CEREM), Deanship of Scientific Research (DSR), College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia; The King Salman Center for Disability Research, Riyadh 12512, Saudi Arabia.
| | - Ibrahim A Alnaser
- Center of Excellence for Research in Engineering Materials (CEREM), Deanship of Scientific Research (DSR), College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia; The King Salman Center for Disability Research, Riyadh 12512, Saudi Arabia; Department of Mechanical Engineering, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia.
| | - Irfan Farooq
- The King Salman Center for Disability Research, Riyadh 12512, Saudi Arabia; Department of Mechanical Engineering, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia
| | - Md Irfanul Haque Siddiqui
- The King Salman Center for Disability Research, Riyadh 12512, Saudi Arabia; Department of Mechanical Engineering, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia.
| | - Seong Baek Yang
- The King Salman Center for Disability Research, Riyadh 12512, Saudi Arabia; Research Institute for Green Energy Convergence Technology, Gyeongsang National University, Jinju 52828, Republic of Korea.
| | - Faiyaz Shakeel
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammad Rezaul Karim
- Center of Excellence for Research in Engineering Materials (CEREM), Deanship of Scientific Research (DSR), College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia; The King Salman Center for Disability Research, Riyadh 12512, Saudi Arabia.
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Gomez d’Ayala G, Marino T, de Almeida YMB, Costa ARDM, Bezerra da Silva L, Argurio P, Laurienzo P. Enhancing Sustainability in PLA Membrane Preparation through the Use of Biobased Solvents. Polymers (Basel) 2024; 16:2024. [PMID: 39065341 PMCID: PMC11280543 DOI: 10.3390/polym16142024] [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: 06/11/2024] [Revised: 07/03/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
For the first time, ultrafiltration (UF) green membranes were prepared through a sustainable route by using PLA as a biopolymer and dihydrolevoclucosenone, whose trade name is Cyrene™ (Cyr), dimethyl isosorbide (DMI), and ethyl lactate (EL) as biobased solvents. The influence of physical-chemical properties of the solvent on the final membrane morphology and performance was evaluated. The variation of polymer concentration in the casting solution, as well as the presence of Pluronic® (Plu) as a pore former agent, were assessed as well. The obtained results highlighted that the final morphology of a membrane was strictly connected with the interplaying of thermodynamic factors as well as kinetic ones, primarily dope solution viscosity. The pore size of the resulting PLA membranes ranged from 0.02 to 0.09 μm. Membrane thickness and porosity varied in the range of 0.090-0.133 mm of 75-87%, respectively, and DMI led to the most porous membranes. The addition of Plu to the casting solution showed a beneficial effect on the membrane contact angle, allowing the formation of hydrophilic membranes (contact angle < 90°), and promoted the increase of pore size as well as the reduction of membrane crystallinity. PLA membranes were tested for pure water permeability (10-390 L/m2 h bar).
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Affiliation(s)
- Giovanna Gomez d’Ayala
- Institute of Polymers, Composites and Biomaterials, National Research Council (IPCB-CNR), Via Campi Flegrei, 34, 80078 Pozzuoli, NA, Italy; (G.G.d.); (P.L.)
| | - Tiziana Marino
- Institute of Polymers, Composites and Biomaterials, National Research Council (IPCB-CNR), Via Campi Flegrei, 34, 80078 Pozzuoli, NA, Italy; (G.G.d.); (P.L.)
| | | | | | - Larissa Bezerra da Silva
- Postgraduate Program in Materials Science and Engineering, Federal University of Rio Grande do Norte, Natal 59078-970, RN, Brazil;
| | - Pietro Argurio
- Department of Environmental Engineering, DIAm, University of Calabria, Via Pietro Bucci CUBO 44/A, 87036 Rende, CS, Italy;
| | - Paola Laurienzo
- Institute of Polymers, Composites and Biomaterials, National Research Council (IPCB-CNR), Via Campi Flegrei, 34, 80078 Pozzuoli, NA, Italy; (G.G.d.); (P.L.)
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Zhan D, Guo Z. Overview of the design of bionic fine hierarchical structures for fog collection. MATERIALS HORIZONS 2023; 10:4827-4856. [PMID: 37743773 DOI: 10.1039/d3mh01094e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Nature always uses its special wisdom to construct elegant and suitable schemes. Consequently, organisms in the flora and fauna are endowed with fine hierarchical structures (HS) to adapt to the harsh environment due to many years of evolution. Water is one of the most important resources; however, easy access to it is one the biggest challenges faced by human beings. In this case, fog collection (FC) is considered an efficient method to collect water, where bionic HS can be the bridge to efficiently facilitate the process of the FC. In this review, firstly, we discuss the basic principles of FC. Secondly, the role of HS in FC is analyzed in terms of the microstructure of typical examples of plants and animals. Simultaneously, the water-harvesting function of HS in a relatively new organism, fungal filament, is also presented. Thirdly, the HS design in each representative work is analyzed from a biomimetic perspective (single to multiple biomimetic approaches). The role of HS in FC, and then the FC performance of each work are analyzed in order of spatial dimension from a bionic perspective. Finally, the challenges at this stage and the outlook for the future are presented.
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Affiliation(s)
- Danyan Zhan
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan 430062, People's Republic of China.
| | - Zhiguang Guo
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan 430062, People's Republic of China.
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
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Shahbazi K, Akbari I, Baniasadi H. Electrosprayed curcumin‐zein@polycaprolactone‐mucilage capsules for an improved sustained release. POLYM ENG SCI 2023. [DOI: 10.1002/pen.26289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Affiliation(s)
- Kimia Shahbazi
- Department of Chemical Engineering, Science and Research Branch Islamic Azad University Tehran Iran
| | - Iman Akbari
- Department of Chemical Engineering, Science and Research Branch Islamic Azad University Tehran Iran
| | - Hossein Baniasadi
- Department of Chemical Engineering, Science and Research Branch Islamic Azad University Tehran Iran
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Aijaz MO, Yang SB, Karim MR, Alnaser IA, Alahmari AD, Almubaddel FS, Assaifan AK. Preparation and Characterization of Electrospun Poly(lactic acid)/Poly(ethylene glycol)- b-poly(propylene glycol)- b-poly(ethylene glycol)/Silicon Dioxide Nanofibrous Adsorbents for Selective Copper (II) Ions Removal from Wastewater. MEMBRANES 2023; 13:membranes13010054. [PMID: 36676861 PMCID: PMC9863775 DOI: 10.3390/membranes13010054] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/20/2022] [Accepted: 12/23/2022] [Indexed: 05/15/2023]
Abstract
The problem of industrial wastewater containing heavy metals is always a big concern, especially Cu2+, which interprets the soil activity in farmland and leaves a negative impact on the environment by damaging the health of animals. Various methods have been proposed as countermeasures against heavy-metal contaminations, and, as a part of this, an electrospun nanofibrous adsorption method for wastewater treatment is presented as an alternative. Poly(lactic acid) (PLA) is a biopolymer with an intrinsic hydrophobic property that has been considered one of the sustainable nanofibrous adsorbents for carrying adsorbate. Due to the hydrophobic nature of PLA, it is difficult to adsorb Cu2+ contained in wastewater. In this study, the hydrophilic PLA/poly(ethylene glycol)-poly(propylene glycol)-poly(ethylene glycol) (PEG-PPG-PEG) nanofibrous adsorbents with different silicon dioxide (SiO2) concentrations were successfully prepared by electrospinning. A hydrophilic group of PEG-PPG-PEG was imparted in PLA by the blending method. The prepared PLA/PEG-PPG-PEG/SiO2 nanofibrous adsorbents were analyzed with their morphological, contact angle analysis, and chemical structure. The Cu2+ adsorption capacities of the different PLA/PEG-PPG-PEG/SiO2 nanofibrous adsorbents were also investigated. The adsorption results indicated that the Cu2+ removal capacity of PLA/PEG-PPG-PEG/SiO2 nanofibrous adsorbents was higher than that of pure ones. Additionally, as an affinity nanofibrous adsorbent, its adsorption capacity was maintained after multiple recycling processes (desorption and re-adsorption). It is expected to be a promising nanofibrous adsorbents that will adsorb Cu2+ for wastewater treatment.
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Affiliation(s)
- Muhammad Omer Aijaz
- Department of Mechanical Engineering, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia
- Correspondence: (M.O.A.); (M.R.K.)
| | - Seong Baek Yang
- Department of Mechanical Engineering, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia
| | - Mohammad Rezaul Karim
- Department of Mechanical Engineering, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia
- Correspondence: (M.O.A.); (M.R.K.)
| | - Ibrahim Abdullah Alnaser
- Department of Mechanical Engineering, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia
| | | | - Fahad S. Almubaddel
- Department of Chemical Engineering, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia
| | - Abdulaziz K. Assaifan
- Department of Biomedical Technology, College of Applied Medical Sciences, King Saud University, Riyadh 11421, Saudi Arabia
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