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Parale VG, Kim T, Choi H, Phadtare VD, Dhavale RP, Kanamori K, Park HH. Mechanically Strengthened Aerogels through Multiscale, Multicompositional, and Multidimensional Approaches: A Review. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2307772. [PMID: 37916304 DOI: 10.1002/adma.202307772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/29/2023] [Indexed: 11/03/2023]
Abstract
In recent decades, aerogels have attracted tremendous attention in academia and industry as a class of lightweight and porous multifunctional nanomaterial. Despite their wide application range, the low mechanical durability hinders their processing and handling, particularly in applications requiring complex physical structures. "Mechanically strengthened aerogels" have emerged as a potential solution to address this drawback. Since the first report on aerogels in 1931, various modified synthesis processes have been introduced in the last few decades to enhance the aerogel mechanical strength, further advancing their multifunctional scope. This review summarizes the state-of-the-art developments of mechanically strengthened aerogels through multicompositional and multidimensional approaches. Furthermore, new trends and future directions for as prevailed commercialization of aerogels as plastic materials are discussed.
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Affiliation(s)
- Vinayak G Parale
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, South Korea
| | - Taehee Kim
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, South Korea
| | - Haryeong Choi
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, South Korea
| | - Varsha D Phadtare
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, South Korea
| | - Rushikesh P Dhavale
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, South Korea
| | - Kazuyoshi Kanamori
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan
| | - Hyung-Ho Park
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, South Korea
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Alavi F, Ciftci ON. Green and single-step simultaneous composite starch aerogel formation-high bioavailability curcumin particle formation. Int J Biol Macromol 2024; 264:129945. [PMID: 38311127 DOI: 10.1016/j.ijbiomac.2024.129945] [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: 09/17/2023] [Revised: 01/13/2024] [Accepted: 02/01/2024] [Indexed: 02/06/2024]
Abstract
The high porosity and specific surface area of aerogels offer an ideal platform for loading bioactive molecules. In the present study, the microstructure of the bio-based starch aerogels was modulated by the incorporation of chitosan. The starch hydrogel precursors were prepared from high amylose corn starch in the presence of 0, 0.50, and 0.75 wt% chitosan. Afterward, a green single-step simultaneous aerogel formation-curcumin deposition method was applied to impregnate curcumin into the aerogels through supercritical carbon dioxide (SC-CO2) drying technology. Composite starch/chitosan aerogels showed a more open porous structure and lighter weight than the neat starch counterpart. Confocal microscopy and fluorescence spectroscopy analysis confirmed curcumin molecules' attachment to the aerogels' hydrophobic cavities. The impregnation capacity was 24-27 mg curcumin per gram of aerogel depending on the composition of the aerogels. The loading of curcumin in the aerogels significantly enhanced the bioaccessibility of curcumin in the simulated gastrointestinal fluid by almost 30-fold when compared to the unloaded curcumin. Furthermore, the bioaccessibility of the curcumin loaded in starch-chitosan composite aerogels was higher than that in neat starch aerogels. While unloaded curcumin showed an undetectable intestinal Caco-2 cell transportation, curcumin-loaded aerogels revealed a cumulative curcumin passing of 0.15-0.23 μg/mL.
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Affiliation(s)
- Farhad Alavi
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588-6205, USA
| | - Ozan N Ciftci
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588-6205, USA; Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE 68583-0726, USA.
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Linfeng L, Xiaowei Z, Xueqin C, Xianfeng Z. Simvastatin-loaded 3D aerogel scaffolds promote bone regeneration. Biomed Mater Eng 2024; 35:153-163. [PMID: 38363602 DOI: 10.3233/bme-230068] [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: 02/17/2024]
Abstract
BACKGROUND It is imperative to design a suitable material for bone regeneration that emulates the microstructure and compositional framework of natural bone while mitigating the shortcomings of current repair materials. OBJECTIVE The aim of the study is to synthesize a 3D aerogel scaffold composed of PLCL/gelatin electro-spun nanofiber loaded with Simvastatin and investigate its biocompatibility as well as its performance in cell proliferation and ossification differentiation. METHODS PLCL/gelatin nanofibers were fabricated in coaxial electrospinning with simvastatin added. Fibers were fragmented, pipetted into molds, frozen, and dried. The morphology of fibers and contact angles in 4 groups of PLCL, PLCL@S, 3D-PLCL, and 3D-PLCL@S was observed and compared. MC3T3-E1 cells were planted at the four materials to observe cell growth status, and ALP and ARS tests were conducted to compare the ossification of cells. RESULTS TEM scanning showed the coaxial fiber of the inner PLCL and outer gelatin. The mean diameter of the PLCL/gelatin fibers is 561 ± 95 nm and 631 ± 103 nm after the drug loading. SEM showed the fibers in the 3D-PLCL@S group were more curled and loose with more space interlaced. The contact angle in this group was 27.1°, the smallest one. Drug release test demonstrated that simvastatin concentration in the 3D-PLCL@S could remain at a relatively high level compared to the control group. The cell proliferation test showed that MC3T3-EI cells could embed into the scaffold deeply and exhibit higher viability in the 3D-PLCL@S group than other groups. The ossification tests of ALP and ARS also inferred that the 3D-PLCL@S scaffold could offer a better osteogenic differentiation matrix. CONCLUSION The PLCL/gelatin aerogel scaffold, when loaded with Simvastatin, demonstrates a more pronounced potential in enhancing osteoblast proliferation and osteogenic differentiation. We hypothesize that this scaffold could serve as a promising material for addressing bone defects.
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Affiliation(s)
- Lai Linfeng
- Dingling Clinical College, Wenzhou Medical University, Wenzhou, China
- Wenzhou Central Hospital, Wenzhou, China
- The Second Affiliated Hospital of Shanghai University, Wenzhou, China
| | - Zhou Xiaowei
- Dingling Clinical College, Wenzhou Medical University, Wenzhou, China
- Wenzhou Central Hospital, Wenzhou, China
- The Second Affiliated Hospital of Shanghai University, Wenzhou, China
- Wenzhou Renmin Hospital, Wenzhou, China
| | - Chen Xueqin
- Dingling Clinical College, Wenzhou Medical University, Wenzhou, China
- Wenzhou Central Hospital, Wenzhou, China
- The Second Affiliated Hospital of Shanghai University, Wenzhou, China
| | - Zhu Xianfeng
- Dingling Clinical College, Wenzhou Medical University, Wenzhou, China
- Wenzhou Central Hospital, Wenzhou, China
- The Second Affiliated Hospital of Shanghai University, Wenzhou, China
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4
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Sozcu S, Venkataraman M, Wiener J, Tomkova B, Militky J, Mahmood A. Incorporation of Cellulose-Based Aerogels into Textile Structures. MATERIALS (BASEL, SWITZERLAND) 2023; 17:27. [PMID: 38203881 PMCID: PMC10779952 DOI: 10.3390/ma17010027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 01/12/2024]
Abstract
Given their exceptional attributes, aerogels are viewed as a material with immense potential. Being a natural polymer, cellulose offers the advantage of being both replenishable and capable of breaking down naturally. Cellulose-derived aerogels encompass the replenish ability, biocompatible nature, and ability to degrade naturally inherent in cellulose, along with additional benefits like minimal weight, extensive porosity, and expansive specific surface area. Even with increasing appreciation and acceptance, the undiscovered possibilities of aerogels within the textiles sphere continue to be predominantly uninvestigated. In this context, we outline the latest advancements in the study of cellulose aerogels' formulation and their diverse impacts on textile formations. Drawing from the latest studies, we reviewed the materials used for the creation of various kinds of cellulose-focused aerogels and their properties, analytical techniques, and multiple functionalities in relation to textiles. This comprehensive analysis extensively covers the diverse strategies employed to enhance the multifunctionality of cellulose-based aerogels in the textiles industry. Additionally, we focused on the global market size of bio-derivative aerogels, companies in the industry producing goods, and prospects moving forward.
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Affiliation(s)
- Sebnem Sozcu
- Department of Material Engineering, Faculty of Textile Engineering, Technical University of Liberec, 46117 Liberec, Czech Republic; (J.W.); (B.T.); (J.M.); (A.M.)
| | - Mohanapriya Venkataraman
- Department of Material Engineering, Faculty of Textile Engineering, Technical University of Liberec, 46117 Liberec, Czech Republic; (J.W.); (B.T.); (J.M.); (A.M.)
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Yu X, Han F, Feng X, Wang X, Zhu Y, Ye C, Ji M, Chen Z, Tao R, Zhou Z, Wan F. Sea Cucumber-Inspired Aerogel for Ultrafast Hemostasis of Open Fracture. Adv Healthc Mater 2023; 12:e2300817. [PMID: 37340763 DOI: 10.1002/adhm.202300817] [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: 03/15/2023] [Revised: 05/29/2023] [Indexed: 06/22/2023]
Abstract
The symptomatic management of hemorrhagic shock complicated by open fractures is a great challenge, because it is also complicated by complex wound bleeding, bacterial infection, and bone defects. Inspired by the water absorption and cross-sectional microstructure of sea cucumbers, in this study, a new sea cucumber-like aerogel (GCG) is proposed. Its aligned porous structure and composition can stop bleeding rapidly and effectively with a blood clotting index of 3.73 ± 1.8%. More importantly, the data of in vivo hemostasis test in an amputating rat tail hemostatic model (15.69 ± 2.45 s, 26.95 ± 8.43 mg) and liver puncture bleeding model (23.77 ± 2.68 s, 36.22 ± 16.92 mg) also indicate the excellent hemostatic performance of GCG. In addition, GCG also shows a significant inhibitory effect on S. aureus and E. coli, which can prevent the occurrence of postoperative osteomyelitis. Not only that, after filling in the bone defect, it is shown that this GCG aerogel completely degrades eight weeks after surgery and induces new bone ingrowth, achieving functional regeneration after hemostasis of an open fracture defect. Generally, because of its combination of hemostatic, antibacterial, and osteogenic activities, this new aerogel is a promising option for open fractures treatment.
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Affiliation(s)
- Xinyu Yu
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Fei Han
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Xian Feng
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Xin Wang
- Department of Dermatology, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Yang Zhu
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Cong Ye
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Minrui Ji
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Zhichao Chen
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Ran Tao
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Zhenyu Zhou
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
| | - Fuyin Wan
- Department of Orthopeadic Surgery, Affiliated Hospital of Nantong University, Nantong, 226001, China
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6
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Moggio BC, Bergamasco R, Andrade CMG, Aylon LBR. On the Analysis of Cryogels and Xerogels Using Cellulose Nanofibers and Graphene Oxide. Polymers (Basel) 2023; 15:3833. [PMID: 37765687 PMCID: PMC10535242 DOI: 10.3390/polym15183833] [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: 07/08/2023] [Revised: 08/19/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023] Open
Abstract
Aerogels are highly porous and ultralight three-dimensional materials with great potential for various applications. To obtain highly porous and structurally stable aerogels, a carefully designed synthesis process is required. These materials offer flexibility in manipulating their properties, allowing the incorporation of modifying agents according to specific needs. In this study, compounds were synthesized using graphene oxide (GO) and nanocellulose fibers (NFC) through the hydrothermal reduction methodology. Two drying techniques were employed: lyophilization and oven evaporation, resulting in materials called cryogel and xerogel, respectively. Various parameters that can interfere with the properties of these nanomaterials were evaluated. The results indicated that the cryogel dried by lyophilization provided the best applicability due to its structural flexibility after compressions, whereas the xerogel obtained through the oven evaporation process resulted in a compound with high rigidity and disintegration. Structural characterizations demonstrated the successful development of the precursors and promising characteristics in the synthesized nanomaterials. With its flexibility, approximately 98% porosity, low shrinkage rate, light weight, and electrical conductivity, the developed cryogel showed high potential in various applications, such as pressure sensors, electromagnetic shielding, and other research and development fields.
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Affiliation(s)
- Bianca Cristina Moggio
- Department of Chemical Engineering, State University of Maringá, Maringá 87020-900, Brazil; (B.C.M.); (R.B.)
| | - Rosangela Bergamasco
- Department of Chemical Engineering, State University of Maringá, Maringá 87020-900, Brazil; (B.C.M.); (R.B.)
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Karamikamkar S, Yalcintas EP, Haghniaz R, de Barros NR, Mecwan M, Nasiri R, Davoodi E, Nasrollahi F, Erdem A, Kang H, Lee J, Zhu Y, Ahadian S, Jucaud V, Maleki H, Dokmeci MR, Kim H, Khademhosseini A. Aerogel-Based Biomaterials for Biomedical Applications: From Fabrication Methods to Disease-Targeting Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2204681. [PMID: 37217831 PMCID: PMC10427407 DOI: 10.1002/advs.202204681] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Indexed: 05/24/2023]
Abstract
Aerogel-based biomaterials are increasingly being considered for biomedical applications due to their unique properties such as high porosity, hierarchical porous network, and large specific pore surface area. Depending on the pore size of the aerogel, biological effects such as cell adhesion, fluid absorption, oxygen permeability, and metabolite exchange can be altered. Based on the diverse potential of aerogels in biomedical applications, this paper provides a comprehensive review of fabrication processes including sol-gel, aging, drying, and self-assembly along with the materials that can be used to form aerogels. In addition to the technology utilizing aerogel itself, it also provides insight into the applicability of aerogel based on additive manufacturing technology. To this end, how microfluidic-based technologies and 3D printing can be combined with aerogel-based materials for biomedical applications is discussed. Furthermore, previously reported examples of aerogels for regenerative medicine and biomedical applications are thoroughly reviewed. A wide range of applications with aerogels including wound healing, drug delivery, tissue engineering, and diagnostics are demonstrated. Finally, the prospects for aerogel-based biomedical applications are presented. The understanding of the fabrication, modification, and applicability of aerogels through this study is expected to shed light on the biomedical utilization of aerogels.
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Affiliation(s)
| | | | - Reihaneh Haghniaz
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
| | | | - Marvin Mecwan
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
| | - Rohollah Nasiri
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
| | - Elham Davoodi
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
- Department of Mechanical and Mechatronics EngineeringUniversity of WaterlooWaterlooONN2L 3G1Canada
| | - Fatemeh Nasrollahi
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
- Department of BioengineeringUniversity of California‐Los Angeles (UCLA)Los AngelesCA90095USA
| | - Ahmet Erdem
- Department of Biomedical EngineeringKocaeli UniversityUmuttepe CampusKocaeli41001Turkey
| | - Heemin Kang
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Junmin Lee
- Department of Materials Science and EngineeringPohang University of Science and Technology (POSTECH)Pohang37673Republic of Korea
| | - Yangzhi Zhu
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
| | - Samad Ahadian
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
| | - Vadim Jucaud
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
| | - Hajar Maleki
- Institute of Inorganic ChemistryDepartment of ChemistryUniversity of CologneGreinstraße 650939CologneGermany
- Center for Molecular Medicine CologneCMMC Research CenterRobert‐Koch‐Str. 2150931CologneGermany
| | | | - Han‐Jun Kim
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
- College of PharmacyKorea UniversitySejong30019Republic of Korea
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation (TIBI)Los AngelesCA90024USA
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Saleh WM, Ahmad MI, Yahya EB, H P S AK. Nanostructured Bioaerogels as a Potential Solution for Particulate Matter Pollution. Gels 2023; 9:575. [PMID: 37504454 PMCID: PMC10379271 DOI: 10.3390/gels9070575] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/08/2023] [Accepted: 06/15/2023] [Indexed: 07/29/2023] Open
Abstract
Particulate matter (PM) pollution is a significant environmental and public health issue globally. Exposure to high levels of PM, especially fine particles, can have severe health consequences. These particles can come from a variety of sources, including natural events like dust storms and wildfires, as well as human activities such as industrial processes and transportation. Although an extensive development in air filtration techniques has been made in the past few years, fine particulate matter still poses a serios and dangerous threat to human health and to our environment. Conventional air filters are fabricated from non-biodegradable and non-ecofriendly materials which can cause further environmental pollution as a result of their excessive use. Nanostructured biopolymer aerogels have shown great promise in the field of particulate matter removal. Their unique properties, renewable nature, and potential for customization make them attractive materials for air pollution control. In the present review, we discuss the meaning, properties, and advantages of nanostructured aerogels and their potential in particulate matter removal. Particulate matter pollution, types and sources of particulate matter, health effect, environmental effect, and the challenges facing scientists in particulate matter removal are also discussed in the present review. Finally, we present the most recent advances in using nanostructured bioaerogels in the removal of different types of particulate matter and discuss the challenges that we face in these applications.
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Affiliation(s)
- Wafa Mustafa Saleh
- Environmental Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Mardiana Idayu Ahmad
- Environmental Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia
- Renewable Biomass Transformation Cluster, School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Esam Bashir Yahya
- Bioprocess Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia
- Green Biopolymer, Coatings and Packaging Cluster, School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Abdul Khalil H P S
- Green Biopolymer, Coatings and Packaging Cluster, School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia
- Bioresource Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia
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9
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Li Z, Li B, Yu C. Atomic Aerogel Materials (or Single-Atom Aerogels): An Interesting New Paradigm in Materials Science and Catalysis Science. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211221. [PMID: 36606466 DOI: 10.1002/adma.202211221] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/31/2022] [Indexed: 06/16/2023]
Abstract
The concept of "single-atom catalysis" is first proposed by Tao Zhang, Jun Li, and Jingyue Liu in 2011. Single-atom catalysts (SACs) have a very high catalytic activity and greatly improved atom utilization ratio. At present, SACs have become frontier materials in the field of catalysis. Aerogels are highly porous materials with extremely low density and extremely high porosity. These pores play a key role in determining their surface reactivity and mechanical stability. The alliance of SACs and aerogels can fully reflect their structural advantages and lead to new enhancement effects. Herein, a general concept of "atomic aerogel materials" (AAMs) (or single-atom aerogels (SAAs)) is proposed to describe this interesting new paradigm in both material and catalysis fields. Based on the basic units of "gel," the AAMs can be divided into two categories: carrier-level AAMs (with micro-, nano-, or sub-nanometer pore structures) and atomic-level AAMs (with atomic-defective or oxygen-bridged sub-nanopore structures). The basic unit of the former (i.e., single-atom-functionalized aerogels) is the carrier materials in nanostructures, and the latter (i.e., single-atom-built aerogels) is the single metal atoms in atomic structures. The atomic-defective or oxygen-bridged AAMs will be important development directions in versatile heterogeneous catalytic or noncatalytic fields. The design proposals, latent challenges, and coping strategies of this new "atomic nanosystem" in applications are pointed out as well.
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Affiliation(s)
- Zesheng Li
- College of Chemistry, Guangdong University of Petrochemical Technology, Maoming, 525000, China
| | - Bolin Li
- College of Chemistry, Guangdong University of Petrochemical Technology, Maoming, 525000, China
| | - Changlin Yu
- College of Chemistry, Guangdong University of Petrochemical Technology, Maoming, 525000, China
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10
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Bakhori NM, Ismail Z, Hassan MZ, Dolah R. Emerging Trends in Nanotechnology: Aerogel-Based Materials for Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1063. [PMID: 36985957 PMCID: PMC10058649 DOI: 10.3390/nano13061063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/11/2023] [Accepted: 03/13/2023] [Indexed: 06/18/2023]
Abstract
At present, aerogel is one of the most interesting materials globally. The network of aerogel consists of pores with nanometer widths, which leads to a variety of functional properties and broad applications. Aerogel is categorized as inorganic, organic, carbon, and biopolymers, and can be modified by the addition of advanced materials and nanofillers. Herein, this review critically discusses the basic preparation of aerogel from the sol-gel reaction with derivation and modification of a standard method to produce various aerogels for diverse functionalities. In addition, the biocompatibility of various types of aerogels were elaborated. Then, biomedical applications of aerogel were focused on this review as a drug delivery carrier, wound healing agent, antioxidant, anti-toxicity, bone regenerative, cartilage tissue activities and in dental fields. The clinical status of aerogel in the biomedical sector is shown to be similarly far from adequate. Moreover, due to their remarkable properties, aerogels are found to be preferably used as tissue scaffolds and drug delivery systems. The advanced studies in areas including self-healing, additive manufacturing (AM) technology, toxicity, and fluorescent-based aerogel are crucially important and are further addressed.
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Affiliation(s)
- Noremylia Mohd Bakhori
- Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, Persiaran Ilmu, Putra Nilai, Nilai 71800, Negeri Sembilan, Malaysia
| | - Zarini Ismail
- Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, Persiaran Ilmu, Putra Nilai, Nilai 71800, Negeri Sembilan, Malaysia
| | - Mohamad Zaki Hassan
- Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Selangor, Malaysia
| | - Rozzeta Dolah
- Department of Chemical Engineering, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Selangor, Malaysia
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11
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Biomedical applications of silica-based aerogels: a comprehensive review. Macromol Res 2023. [DOI: 10.1007/s13233-023-00142-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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12
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Alavi F, Ciftci ON. Effect of starch type and chitosan supplementation on physicochemical properties, morphology, and oil structuring capacity of composite starch bioaerogels. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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13
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Nikolova MP, Apostolova MD. Advances in Multifunctional Bioactive Coatings for Metallic Bone Implants. MATERIALS (BASEL, SWITZERLAND) 2022; 16:183. [PMID: 36614523 PMCID: PMC9821663 DOI: 10.3390/ma16010183] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
To fix the bone in orthopedics, it is almost always necessary to use implants. Metals provide the needed physical and mechanical properties for load-bearing applications. Although widely used as biomedical materials for the replacement of hard tissue, metallic implants still confront challenges, among which the foremost is their low biocompatibility. Some of them also suffer from excessive wear, low corrosion resistance, infections and shielding stress. To address these issues, various coatings have been applied to enhance their in vitro and in vivo performance. When merged with the beneficial properties of various bio-ceramic or polymer coatings remarkable bioactive, osteogenic, antibacterial, or biodegradable composite implants can be created. In this review, bioactive and high-performance coatings for metallic bone implants are systematically reviewed and their biocompatibility is discussed. Updates in coating materials and formulations for metallic implants, as well as their production routes, have been provided. The ways of improving the bioactive coating performance by incorporating bioactive moieties such as growth factors, osteogenic factors, immunomodulatory factors, antibiotics, or other drugs that are locally released in a controlled manner have also been addressed.
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Affiliation(s)
- Maria P. Nikolova
- Department of Material Science and Technology, University of Ruse “A. Kanchev”, 8 Studentska Str., 7017 Ruse, Bulgaria
| | - Margarita D. Apostolova
- Medical and Biological Research Lab., “Roumen Tsanev” Institute of Molecular Biology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Multiscale structural control of thiostannate chalcogels with two-dimensional crystalline constituents. Nat Commun 2022; 13:7876. [PMID: 36564380 PMCID: PMC9789151 DOI: 10.1038/s41467-022-35386-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 11/29/2022] [Indexed: 12/24/2022] Open
Abstract
Chalcogenide aerogels (chalcogels) are amorphous structures widely known for their lack of localized structural control. This study, however, demonstrates a precise multiscale structural control through a thiostannate motif ([Sn2S6]4-)-transformation-induced self-assembly, yielding Na-Mn-Sn-S, Na-Mg-Sn-S, and Na-Sn(II)-Sn(IV)-S aerogels. The aerogels exhibited [Sn2S6]4-:Mn2+ stoichiometric-variation-induced-control of average specific surface areas (95-226 m2 g-1), thiostannate coordination networks (octahedral to tetrahedral), phase crystallinity (crystalline to amorphous), and hierarchical porous structures (micropore-intensive to mixed-pore state). In addition, these chalcogels successfully adopted the structural motifs and ion-exchange principles of two-dimensional layered metal sulfides (K2xMnxSn3-xS6, KMS-1), featuring a layer-by-layer stacking structure and effective radionuclide (Cs+, Sr2+)-control functionality. The thiostannate cluster-based gelation principle can be extended to afford Na-Mg-Sn-S and Na-Sn(II)-Sn(IV)-S chalcogels with the same structural features as the Na-Mn-Sn-S chalcogels (NMSCs). The study of NMSCs and their chalcogel family proves that the self-assembly principle of two-dimensional chalcogenide clusters can be used to design unique chalcogels with unprecedented structural hierarchy.
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15
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Parsaei M, Akhbari K. Synthesis and Application of MOF-808 Decorated with Folic Acid-Conjugated Chitosan as a Strong Nanocarrier for the Targeted Drug Delivery of Quercetin. Inorg Chem 2022; 61:19354-19368. [DOI: 10.1021/acs.inorgchem.2c03138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Mozhgan Parsaei
- School of Chemistry, College of Science, University of Tehran, Tehran14155-6455, Iran
| | - Kamran Akhbari
- School of Chemistry, College of Science, University of Tehran, Tehran14155-6455, Iran
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16
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Kachwal V, Tan J. Stimuli-Responsive Electrospun Fluorescent Fibers Augmented with Aggregation-Induced Emission (AIE) for Smart Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 10:e2204848. [PMID: 36373688 PMCID: PMC9811457 DOI: 10.1002/advs.202204848] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/05/2022] [Indexed: 06/16/2023]
Abstract
This review addresses the latest advancements in the integration of aggregation-induced emission (AIE) materials with polymer electrospinning, to accomplish fine-scale electrospun fibers with tunable photophysical and photochemical properties. Micro- and nanoscale fibers augmented with AIE dyes (termed AIEgens) are bespoke composite systems that can overcome the limitation posed by aggregation-caused quenching, a critical deficiency of conventional luminescent materials. This review comprises three parts. First, the reader is exposed to the basic concepts of AIE and the fundamental mechanisms underpinning the restriction of intermolecular motions. This is followed by an introduction to electrospinning techniques pertinent to AIE-based fibers, and the core parameters for controlling fiber architecture and resultant properties. Second, exemplars are drawn from latest research to demonstrate how electrospun nanofibers and porous films incorporating modified AIEgens (especially tetraphenylethylene and triphenylamine derivatives) can yield enhanced photostability, photothermal properties, photoefficiency (quantum yield), and improved device sensitivity. Advanced applications are drawn from several promising sectors, encompassing optoelectronics, drug delivery and biology, chemosensors and mechanochromic sensors, and innovative photothermal devices, among others. Finally, the outstanding challenges together with potential opportunities in the nascent field of electrospun AIE-active fibers are presented, for stimulating frontier research and explorations in this exciting field.
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Affiliation(s)
- Vishal Kachwal
- Multifunctional Materials & Composites (MMC) LaboratoryDepartment of Engineering ScienceUniversity of OxfordParks RoadOxfordOX1 3PJUK
| | - Jin‐Chong Tan
- Multifunctional Materials & Composites (MMC) LaboratoryDepartment of Engineering ScienceUniversity of OxfordParks RoadOxfordOX1 3PJUK
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17
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Hamidi S, Monajjemzadeh F, Siahi‐Shadbad M, Khatibi SA, Farjami A. Antibacterial activity of natural polymer gels and potential applications without synthetic antibiotics. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26184] [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)
- Samin Hamidi
- Food and Drug Safety Research Center Tabriz University of Medical Sciences Tabriz Iran
- Pharmaceutical Analysis Research Center Tabriz University of Medical Sciences Tabriz Iran
| | - Farnaz Monajjemzadeh
- Food and Drug Safety Research Center Tabriz University of Medical Sciences Tabriz Iran
- Pharmaceutical and Food Control Department, Faculty of Pharmacy Tabriz University of Medical Sciences Tabriz Iran
| | - Mohammadreza Siahi‐Shadbad
- Pharmaceutical and Food Control Department, Faculty of Pharmacy Tabriz University of Medical Sciences Tabriz Iran
| | - Seyed Amin Khatibi
- Food and Drug Safety Research Center Tabriz University of Medical Sciences Tabriz Iran
| | - Afsaneh Farjami
- Food and Drug Safety Research Center Tabriz University of Medical Sciences Tabriz Iran
- Pharmaceutical Analysis Research Center Tabriz University of Medical Sciences Tabriz Iran
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18
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Wu W, Song Q, Yu J, Li N, Hu Z, Wang Y, Zhu J. High‐performance heterocyclic para‐aramid aerogels for selective dye adsorption and thermal insulation applications. J Appl Polym Sci 2022. [DOI: 10.1002/app.53301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Wenwen Wu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering Donghua University Shanghai China
| | - Qingquan Song
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering Donghua University Shanghai China
| | - Junrong Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering Donghua University Shanghai China
| | - Na Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering Donghua University Shanghai China
| | - Zuming Hu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering Donghua University Shanghai China
| | - Yan Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering Donghua University Shanghai China
| | - Jing Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering Donghua University Shanghai China
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19
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El Halawany M, Latif R, AbouGhaly MHH. Hemostatic Alginate/Nano-Hydroxyapatite Composite Aerogel Loaded with Tranexamic Acid for the Potential Protection against Alveolar Osteitis. Pharmaceutics 2022; 14:pharmaceutics14102255. [PMID: 36297689 PMCID: PMC9608763 DOI: 10.3390/pharmaceutics14102255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/06/2022] [Accepted: 10/18/2022] [Indexed: 11/21/2022] Open
Abstract
Wound control in patients on anticoagulants is challenging and often leads to poor hemostasis. They have a higher tendency to develop alveolar osteitis after tooth extraction. The application of a hemostatic dressing that has a high absorbing capacity and is loaded with an antifibrinolytic drug could help in controlling the bleeding. Alginate/nano-hydroxyapatite (SA/Nano-HA) composite aerogels loaded with tranexamic acid (TXA) were prepared. Nano-HA served as a reinforcing material for the alginate matrix and a source of calcium ions that helps in blood clotting. It influenced the porosity and the water uptake capacity. TXA release from SA/Nano-HA aerogels showed a biphasic profile for up to 4 h. Blood coagulation studies were performed on human whole blood. The TXA-loaded aerogel significantly reduced the clotting time by 69% compared to the control (p < 0.0001). Recalcification time was significantly reduced by 80% (p < 0.0001). Scanning electron microscopy analysis revealed the porous nature of the aerogels and the ability of the optimum aerogel to activate and adhere platelets to its porous surface. The cell migration assay showed that there was a delay in wound healing caused by the TXA aerogel compared to the control sample after treating human fibroblasts. Results suggest that the developed aerogel is a promising dressing that will help in hemostasis after tooth extraction.
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Affiliation(s)
- Mai El Halawany
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo 11562, Egypt
- Correspondence: ; Tel.: +20-10-0846-3596; Fax: +20-22-362-8246
| | - Randa Latif
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo 11562, Egypt
| | - Mohamed H. H. AbouGhaly
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo 11562, Egypt
- Department of Pharmaceutics and Industrial Pharmacy, School of Pharmacy, Newgiza University, Km. 22 Cairo-Alex Road, Giza P.O. Box 12577, Egypt
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20
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Couzon N, Dhainaut J, Campagne C, Royer S, Loiseau T, Volkringer C. Porous textile composites (PTCs) for the removal and the decomposition of chemical warfare agents (CWAs) – A review. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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21
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Supercritical Fluid Technologies for the Incorporation of Synthetic and Natural Active Compounds into Materials for Drug Formulation and Delivery. Pharmaceutics 2022; 14:pharmaceutics14081670. [PMID: 36015296 PMCID: PMC9413081 DOI: 10.3390/pharmaceutics14081670] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/05/2022] [Accepted: 08/07/2022] [Indexed: 11/25/2022] Open
Abstract
Various active compounds isolated from natural sources exhibit remarkable benefits, making them attractive for pharmaceutical and biomedical applications, such as antioxidant, antimicrobial, and anti-inflammatory activities, which contribute to the treatment of cardiovascular diseases, neurodegenerative disorders, various types of cancer, diabetes, and obesity. However, their major drawbacks are their reactivity, instability, relatively poor water solubility, and consequently low bioavailability. Synthetic drugs often face similar challenges associated with inadequate solubility or burst release in gastrointestinal media, despite being otherwise a safe and effective option for the treatment of numerous diseases. Therefore, drug-eluting pharmaceutical formulations have been of great importance over the years in efforts to improve the bioavailability of active compounds by increasing their solubility and achieving their controlled release in body media. This review highlights the success of the fabrication of micro- and nanoformulations using environmentally friendly supercritical fluid technologies for the processing and incorporation of active compounds. Several novel approaches, namely micronization to produce micro- and nano-sized particles, supercritical drying to produce aerogels, supercritical foaming, and supercritical solvent impregnation, are described in detail, along with the currently available drug delivery data for these formulations.
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22
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Ren J, Hasuo K, Wei Y, Tabata I, Hori T, Hirogaki K. Investigation of the influences of the molecular weights and dosage ratios of polyvinyl alcohol on para‐aramid nanofibers/polyvinyl alcohol composite aerogels. J Appl Polym Sci 2022. [DOI: 10.1002/app.52960] [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)
- Jianhua Ren
- Graduate School of Engineering University of Fukui Fukui Japan
| | - Kensuke Hasuo
- School of Engineering University of Fukui Fukui Japan
| | - Yujun Wei
- Science and Technology Department Chengdu Textile College Chengdu China
| | - Isao Tabata
- School of Engineering University of Fukui Fukui Japan
| | - Teruo Hori
- Headquarters for Innovative Society‐Academia Cooperation University of Fukui Fukui Japan
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23
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Huo Y, Liu Y, Xia M, Du H, Lin Z, Li B, Liu H. Nanocellulose-Based Composite Materials Used in Drug Delivery Systems. Polymers (Basel) 2022; 14:2648. [PMID: 35808693 PMCID: PMC9268916 DOI: 10.3390/polym14132648] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/21/2022] [Accepted: 06/22/2022] [Indexed: 02/01/2023] Open
Abstract
Nanocellulose has lately emerged as one of the most promising "green" materials due to its unique properties. Nanocellulose can be mainly divided into three types, i.e., cellulose nanocrystals (CNCs), cellulose nanofibrils (CNFs), and bacterial cellulose (BC). With the rapid development of technology, nanocellulose has been designed into multidimensional structures, including 1D (nanofibers, microparticles), 2D (films), and 3D (hydrogels, aerogels) materials. Due to its adaptable surface chemistry, high surface area, biocompatibility, and biodegradability, nanocellulose-based composite materials can be further transformed as drug delivery carriers. Herein, nanocellulose-based composite material used for drug delivery was reviewed. The typical drug release behaviors and the drug release mechanisms of nanocellulose-based composite materials were further summarized, and the potential application of nanocellulose-based composite materials was prospected as well.
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Affiliation(s)
- Ying Huo
- Tianjin Key Laboratory of Pulp and Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; (Y.H.); (M.X.); (H.D.)
| | - Yingying Liu
- Tianjin Key Laboratory of Pulp and Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; (Y.H.); (M.X.); (H.D.)
| | - Mingfeng Xia
- Tianjin Key Laboratory of Pulp and Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; (Y.H.); (M.X.); (H.D.)
| | - Hong Du
- Tianjin Key Laboratory of Pulp and Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; (Y.H.); (M.X.); (H.D.)
| | - Zhaoyun Lin
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China;
| | - Bin Li
- CAS Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Hongbin Liu
- Tianjin Key Laboratory of Pulp and Paper, School of Light Industry Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China; (Y.H.); (M.X.); (H.D.)
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24
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Peng H, Xiong W, Yang Z, Xu Z, Cao J, Jia M, Xiang Y. Advanced MOFs@aerogel composites: Construction and application towards environmental remediation. JOURNAL OF HAZARDOUS MATERIALS 2022; 432:128684. [PMID: 35303663 DOI: 10.1016/j.jhazmat.2022.128684] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/21/2022] [Accepted: 03/09/2022] [Indexed: 06/14/2023]
Abstract
Environmental pollution has drawn forth advanced materials and progressive techniques concentrating on sustainable development. Metal-organic frameworks (MOFs) have aroused vast interest resulting from their excellent property in structure and function. Conversely, powdery MOFs in highly crystalline follow with fragility, poor processability and recoverability. Aerogels distinguished by the unique three-dimensional (3D) interconnected pore structures with high porosity and accessible surface area are promising carriers for MOFs. Given these, combining MOFs with aerogels at molecule level to obtain advanced composites is excepted to further enhance their performance with higher practicability. Herein, we focus on the latest studies on the MOFs@aerogel composites. The construction of MOFs@aerogel with different synthetic routes and drying methods are discussed. To explore the connection between structure and performance, pore structure engineering and quantitation of MOFs content are outlined. Furthermore, various types of MOFs@aerogel composites and their carbonized derivatives are reviewed, as well as the applications of MOFs@aerogel for environmental remediation referring to water purification and air clearing. More importantly, outlooks towards these emerging advanced composites have been presented from the perspective of practical application and future development.
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Affiliation(s)
- Haihao Peng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Weiping Xiong
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Zhaohui Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Zhengyong Xu
- Hunan Modern Environmental Technology Co. Ltd, Changsha 410004, PR China
| | - Jiao Cao
- School of Chemistry and Food Engineering, Changsha University of Science & Technology, Changsha 410114, PR China
| | - Meiying Jia
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Yinping Xiang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
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25
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Zhao HY, Yu MY, Liu J, Li X, Min P, Yu ZZ. Efficient Preconstruction of Three-Dimensional Graphene Networks for Thermally Conductive Polymer Composites. NANO-MICRO LETTERS 2022; 14:129. [PMID: 35699797 PMCID: PMC9198159 DOI: 10.1007/s40820-022-00878-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 05/13/2022] [Indexed: 06/02/2023]
Abstract
Electronic devices generate heat during operation and require efficient thermal management to extend the lifetime and prevent performance degradation. Featured by its exceptional thermal conductivity, graphene is an ideal functional filler for fabricating thermally conductive polymer composites to provide efficient thermal management. Extensive studies have been focusing on constructing graphene networks in polymer composites to achieve high thermal conductivities. Compared with conventional composite fabrications by directly mixing graphene with polymers, preconstruction of three-dimensional graphene networks followed by backfilling polymers represents a promising way to produce composites with higher performances, enabling high manufacturing flexibility and controllability. In this review, we first summarize the factors that affect thermal conductivity of graphene composites and strategies for fabricating highly thermally conductive graphene/polymer composites. Subsequently, we give the reasoning behind using preconstructed three-dimensional graphene networks for fabricating thermally conductive polymer composites and highlight their potential applications. Finally, our insight into the existing bottlenecks and opportunities is provided for developing preconstructed porous architectures of graphene and their thermally conductive composites.
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Affiliation(s)
- Hao-Yu Zhao
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Ming-Yuan Yu
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Ji Liu
- School of Chemistry, CRANN and AMBER, Trinity College Dublin, Dublin, Ireland.
| | - Xiaofeng Li
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
| | - Peng Min
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Zhong-Zhen Yu
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
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26
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Zheng B, Li B, Wan H, Lin X, Cai Y. Coral-inspired environmental durability aerogels for micron-size plastic particles removal in the aquatic environment. JOURNAL OF HAZARDOUS MATERIALS 2022; 431:128611. [PMID: 35278958 DOI: 10.1016/j.jhazmat.2022.128611] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 02/17/2022] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
Removing microplastics (MPs) from water has been a huge challenge due to their inherent features including small size and high stability. In this research, inspired by the active adsorption and passive adhesion mechanisms of corals to MPs, a new strategy to fabricate polydopamine enhanced magnetic chitosan (PDA-MCS) aerogels was developed with a target to match the surface properties of MPs, achieving high MPs removal efficiency. PDA-MCS aerogels were highly efficient in adsorbing polyethylene terephthalate (PET) microplastics in water at pH values of 6-9, with a removal efficiency of up to 91.6%. Even after three recycles, PDA-MCS aerogels still displayed comparatively high removal efficiency (83.4%). Kinetic and isothermal experiments showed that the adsorption process was the result of electrostatic interactions and physical adhesion between aerogels and microplastics. Moreover, PDA-MCS aerogels maintained high removal efficiency under simulated environmental conditions, and the removal efficiency of PET, polyethylene (PE) and polystyrene (PS) microplastics in waters reached 97.3%, 94.6%, and 92.3%, respectively. Therefore, high-efficiency environmentally durable aerogels adsorbent materials have the potential for the removal of MPs from the aquatic environment.
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Affiliation(s)
- Buyun Zheng
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Bo Li
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Hang Wan
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Xiaofeng Lin
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China; School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
| | - Yanpeng Cai
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China.
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27
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Wang R, Chen C, Pang Z, Wang X, Zhou Y, Dong Q, Guo M, Gao J, Ray U, Xia Q, Lin Z, He S, Foster B, Li T, Hu L. Fabrication of Cellulose-Graphite Foam via Ion Cross-linking and Ambient-Drying. NANO LETTERS 2022; 22:3931-3938. [PMID: 35503740 DOI: 10.1021/acs.nanolett.2c00167] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Conventional plastic foams are usually produced by fossil-fuel-derived polymers, which are difficult to degrade in nature. As an alternative, cellulose is a promising biodegradable polymer that can be used to fabricate greener foams, yet such a process typically relies on methods (e.g., freeze-drying and supercritical-drying) that are hardly scalable and time-consuming. Here, we develop a fast and scalable approach to prepare cellulose-graphite foams via rapidly cross-linking the cellulose fibrils in metal ions-containing solution followed by ambient drying. The prepared foams exhibit low density, high compressive strength, and excellent water stability. Moreover, the cross-linking of the cellulose fibrils can be triggered by various metal ions, indicating good universality. We further use density functional theory to reveal the cross-linking effect of different ions, which shows good agreement with our experimental observation. Our approach presents a sustainable route toward low-cost, environmentally friendly, and scalable foam production for a range of applications.
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Affiliation(s)
- Ruiliu Wang
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Chaoji Chen
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Zhenqian Pang
- Department of Mechanical Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Xizheng Wang
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Yubing Zhou
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Qi Dong
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Miao Guo
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Jinlong Gao
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Upamanyu Ray
- Department of Mechanical Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Qinqin Xia
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Zhiwei Lin
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Shuaiming He
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Bob Foster
- Trinity Industries, Inc., Dallas, Texas 75207, United States
| | - Teng Li
- Department of Mechanical Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
- Center for Materials Innovation, University of Maryland, College Park, Maryland 20742, United States
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28
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A review on super-wettable porous membranes and materials based on bio-polymeric chitosan for oil-water separation. Adv Colloid Interface Sci 2022; 303:102635. [PMID: 35325601 DOI: 10.1016/j.cis.2022.102635] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 02/27/2022] [Accepted: 03/01/2022] [Indexed: 12/21/2022]
Abstract
Appropriate surface wettability of membranes and materials are of an extreme importance for targeting separation of mixtures/emulsions such as oil from water or conversely water from oil. The development of super-wettable membranes and materials surfaces have shown remarkable potential for recovering water from oil-water emulsion while offering maximum resistance to fouling. The availability of clean and potable water has been regarded as an important global challenge for coming human generations. Oil and gas industry is continuously producing immense quantities of waste stream regarded as produced water which contains oil dispersed in water along with other several components. Treating such immense quantities of oily wastewater is of utmost need for recovering precious water for possible reuse or safe disposal. Various technologies have been developed for targeting the separation of oil-water emulsions or mixtures to harness useful potable water and oil as products. Membrane-based separations or use of porous materials such as mesh have been explored in literature for separation of oil-water mixtures/emulsions. Given the unique features of special hydrophilicity, ease of tunability, control of molecular weight, abundant availability, and potential for commercial scale up, chitosan has been extensively used for modifying membranes/meshes or preparing composites with other materials for oil-water separations. This review has described in detail the synthesis, methods of modification and application of chitosan-based super-wettable membranes/meshes and porous materials for oil-water separation. The special wettability features including super-hydrophobicity/superoleophilicity, super-oleophobicity/super-hydrophilicity and super-hydrophilicity/underwater super-oleophobicity of various chitosan-based membranes and materials have been discussed in detail in the review. The strategies for enhancing or developing special wettability for target specific applications have also been discussed. Finally, the challenges, their respective importance have been identified along with a discussion on possible solutions to these challenges.
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Xu B, Luo Z, Wang D, Huang Z, Zhou Z, Wang H. In vitro and in vivo Repair Effects of the NCF-Col-NHA Aerogel Scaffold Loaded With SOST Monoclonal Antibody and SDF-1 in Steroid-Induced Osteonecrosis. Front Bioeng Biotechnol 2022; 10:825231. [PMID: 35372296 PMCID: PMC8964358 DOI: 10.3389/fbioe.2022.825231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/11/2022] [Indexed: 02/05/2023] Open
Abstract
In the current study, we synthesized nanocellulose (NCF)-collagen (Col)-nano hydroxyapatite (NHA) organic-inorganic hybrid aerogels loaded with stromal cell derived factor-1 (SDF-1) and sclerostin monoclonal antibody (SOST McAb) and investigated their ability to repair steroid-induced osteonecrosis. Rabbit bone marrow mesenchymal stem cells (BMSCs) and human vascular endothelial cells (HUVECs) were used for the in vitro study. A rabbit steroid-induced osteonecrosis model was used for the in vivo study. The best elastic modulus reached 12.95 ± 4.77 MPa with a mean compressive property of 0.4067 ± 0.084 MPa for the scaffold containing 100% mass fraction. The average pore diameter of the aerogel was 75 ± 18 µm with a porosity of more than 90% (96.4 ± 1.6%). The aerogel-loaded SDF-1 and SOST were released at 40–50% from the material within the initial 3 h and maintained a stable release for more than 21 days. The in vitro study showed osteogenesis and vascularization capabilities of the scaffold. The in vivo study showed that rabbits received implantation of the scaffold with SOST McAb and SDF-1 showed the best osteogenesis of the osteonecrosis zone in the femoral head. Imaging examination revealed that most of the necrotic area of the femoral head was repaired. These results suggest that this hybrid aerogel scaffold could be used for future steroid-induced osteonecrosis repair.
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Affiliation(s)
- Bing Xu
- Department of Orthopaedic, West China Hospital, Orthopedic Research Institute, Sichuan University, ChengDu, China.,Department of Orthopaedic Surgery, Chengdu Second People's Hospital, ChengDu, China
| | - Zeyu Luo
- Department of Orthopaedic, West China Hospital, Orthopedic Research Institute, Sichuan University, ChengDu, China
| | - Duan Wang
- Department of Orthopaedic, West China Hospital, Orthopedic Research Institute, Sichuan University, ChengDu, China
| | - Zeyu Huang
- Department of Orthopaedic, West China Hospital, Orthopedic Research Institute, Sichuan University, ChengDu, China
| | - Zongke Zhou
- Department of Orthopaedic, West China Hospital, Orthopedic Research Institute, Sichuan University, ChengDu, China
| | - Haoyang Wang
- Department of Orthopaedic, West China Hospital, Orthopedic Research Institute, Sichuan University, ChengDu, China
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30
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Ren J, Hasuo K, Tabata I, Hori T, Hirogaki K. Robust hydrophobic modification of
para‐aramid
nanofibers/polyvinyl alcohol composite aerogels with
1H
,
1H
,
2H
,
2H‐perfluorooctyltriethoxysilane. J Appl Polym Sci 2022. [DOI: 10.1002/app.52324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jianhua Ren
- Graduate School of Engineering University of Fukui Fukui Japan
| | - Kensuke Hasuo
- School of Engineering University of Fukui Fukui Japan
| | - Isao Tabata
- School of Engineering University of Fukui Fukui Japan
| | - Teruo Hori
- Headquarters for Innovative Society‐Academia Cooperation University of Fukui Fukui Japan
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31
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Algal-based polysaccharides as polymer electrolytes in modern electrochemical energy conversion and storage systems: A review. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2020.100023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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32
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Khorsandi Z, Borjian-Boroujeni M, Yekani R, Varma RS. Carbon nanomaterials with chitosan: A winning combination for drug delivery systems. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102847] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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33
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Nguyen PTT, Do NHN, Goh XY, Goh CJ, Ong RH, Le PK, Phan-Thien N, Duong HM. Recent Progresses in Eco-Friendly Fabrication and Applications of Sustainable Aerogels from Various Waste Materials. WASTE AND BIOMASS VALORIZATION 2021; 13:1825-1847. [PMID: 34745389 PMCID: PMC8560886 DOI: 10.1007/s12649-021-01627-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 10/24/2021] [Indexed: 06/13/2023]
Abstract
Tons of waste from residential, commercial and manufacturing activities are generated due to the growing population, urbanization and economic development, prompting the need for sustainable measures. Numerous ways of converting waste to aerogels, a novel class of ultra-light and ultra-porous materials, have been researched to tackle the issues of waste. This review provides an overview of the status of aerogels made from agricultural waste, municipal solid, and industrial waste focusing on the fabrication, properties, and applications of such aerogels. The review first introduced common methods to synthesize the aerogels from waste, including dispersion and drying techniques. Following that, numerous works related to aerogels from waste are summarized and compared, mainly focusing on the sustainability aspect of the processes involved and their contributions for environmental applications such as thermal insulation and oil absorption. Next, advantages, and disadvantages of the current approaches are analyzed. Finally, some prospective waste aerogels and its applications are proposed.
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Affiliation(s)
- Phuc T. T. Nguyen
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Nga H. N. Do
- Refinery and Petrochemical Technology Research Centre, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Xue Yang Goh
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Chong Jin Goh
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Ren Hong Ong
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Phung K. Le
- Refinery and Petrochemical Technology Research Centre, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Nhan Phan-Thien
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Hai M. Duong
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
- University of Cuu Long (UCL), Vinh Long, Vinh Long Province Vietnam
- Department of Chemical Engineering, Stanford University, Stanford, USA
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Wang M, Song Y, Bisoyi HK, Yang J, Liu L, Yang H, Li Q. A Liquid Crystal Elastomer-Based Unprecedented Two-Way Shape-Memory Aerogel. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2102674. [PMID: 34569166 PMCID: PMC8596101 DOI: 10.1002/advs.202102674] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/17/2021] [Indexed: 05/12/2023]
Abstract
With the advantage of reversible shape-morphing between two different permanent shapes under external stimuli, the two-way shape-memory aerogel is expected to become a preferred aerogel for developing practical applications in actuators, sensors, robotics, and more. Herein, the first two-way shape-memory liquid crystal elastomer (LCE)-based aerogel is prepared by an orthogonal heat and light curing strategy coupled with an intermediate mechanical stretching step. The differential scanning calorimetry, temperature-varied wide-angle X-ray scattering, and polarizing optical microscope results indicate that the aerogel possesses a liquid crystal phase and the insider mesogens are well-oriented along the stretching direction. In addition to having superior compressibility and excellent shape stability, this LCE-based aerogel can perform a reversible shape deformation during the heating/cooling cycles with a shrinkage ratio of 37%. The work, that is disclosed here, realizes a truly two-way shape-memory behavior rather than the one-way shape deformation of traditional polymer aerogel materials, and may promote potential applications of this novel LCE-based aerogel material in control devices, soft actuators, and beyond.
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Affiliation(s)
- Meng Wang
- Institute of Advanced MaterialsSchool of Chemistry and Chemical Engineeringand Jiangsu Hi‐Tech Key Laboratory for Biomedical ResearchSoutheast UniversityNanjing211189China
| | - Ying Song
- Institute of Advanced MaterialsSchool of Chemistry and Chemical Engineeringand Jiangsu Hi‐Tech Key Laboratory for Biomedical ResearchSoutheast UniversityNanjing211189China
| | - Hari Krishna Bisoyi
- Advanced Materials and Liquid Crystal Institute and Chemical Physics Interdisciplinary ProgramKent State UniversityKentOH44242USA
| | - Jian‐Feng Yang
- Institute of Advanced MaterialsSchool of Chemistry and Chemical Engineeringand Jiangsu Hi‐Tech Key Laboratory for Biomedical ResearchSoutheast UniversityNanjing211189China
| | - Li Liu
- Institute of Advanced MaterialsSchool of Chemistry and Chemical Engineeringand Jiangsu Hi‐Tech Key Laboratory for Biomedical ResearchSoutheast UniversityNanjing211189China
| | - Hong Yang
- Institute of Advanced MaterialsSchool of Chemistry and Chemical Engineeringand Jiangsu Hi‐Tech Key Laboratory for Biomedical ResearchSoutheast UniversityNanjing211189China
| | - Quan Li
- Institute of Advanced MaterialsSchool of Chemistry and Chemical Engineeringand Jiangsu Hi‐Tech Key Laboratory for Biomedical ResearchSoutheast UniversityNanjing211189China
- Advanced Materials and Liquid Crystal Institute and Chemical Physics Interdisciplinary ProgramKent State UniversityKentOH44242USA
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35
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Isaeva VI, Vedenyapina MD, Kurmysheva AY, Weichgrebe D, Nair RR, Nguyen NPT, Kustov LM. Modern Carbon-Based Materials for Adsorptive Removal of Organic and Inorganic Pollutants from Water and Wastewater. Molecules 2021; 26:6628. [PMID: 34771037 PMCID: PMC8587771 DOI: 10.3390/molecules26216628] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/14/2021] [Accepted: 10/16/2021] [Indexed: 11/20/2022] Open
Abstract
Currently, a serious threat for living organisms and human life in particular, is water contamination with persistent organic and inorganic pollutants. To date, several techniques have been adopted to remove/treat organics and toxic contaminants. Adsorption is one of the most effective and economical methods for this purpose. Generally, porous materials are considered as appropriate adsorbents for water purification. Conventional adsorbents such as activated carbons have a limited possibility of surface modification (texture and functionality), and their adsorption capacity is difficult to control. Therefore, despite the significant progress achieved in the development of the systems for water remediation, there is still a need for novel adsorptive materials with tunable functional characteristics. This review addresses the new trends in the development of new adsorbent materials. Herein, modern carbon-based materials, such as graphene, oxidized carbon, carbon nanotubes, biomass-derived carbonaceous matrices-biochars as well as their composites with metal-organic frameworks (MOFs) and MOF-derived highly-ordered carbons are considered as advanced adsorbents for removal of hazardous organics from drinking water, process water, and leachate. The review is focused on the preparation and modification of these next-generation carbon-based adsorbents and analysis of their adsorption performance including possible adsorption mechanisms. Simultaneously, some weak points of modern carbon-based adsorbents are analyzed as well as the routes to conquer them. For instance, for removal of large quantities of pollutants, the combination of adsorption and other methods, like sedimentation may be recommended. A number of efficient strategies for further enhancing the adsorption performance of the carbon-based adsorbents, in particular, integrating approaches and further rational functionalization, including composing these adsorbents (of two or even three types) can be recommended. The cost reduction and efficient regeneration must also be in the focus of future research endeavors. The targeted optimization of the discussed carbon-based adsorbents associated with detailed studies of the adsorption process, especially, for multicomponent adsorbate solution, will pave a bright avenue for efficient water remediation.
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Affiliation(s)
- Vera I. Isaeva
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russia;
| | - Marina D. Vedenyapina
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russia;
| | - Alexandra Yu. Kurmysheva
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russia;
| | - Dirk Weichgrebe
- Institute for Sanitary Engineering and Waste Management, Leibniz University Hannover, Welfengarten 1, D-30167 Hannover, Germany; (D.W.); (R.R.N.); (N.P.T.N.)
| | - Rahul Ramesh Nair
- Institute for Sanitary Engineering and Waste Management, Leibniz University Hannover, Welfengarten 1, D-30167 Hannover, Germany; (D.W.); (R.R.N.); (N.P.T.N.)
| | - Ngoc Phuong Thanh Nguyen
- Institute for Sanitary Engineering and Waste Management, Leibniz University Hannover, Welfengarten 1, D-30167 Hannover, Germany; (D.W.); (R.R.N.); (N.P.T.N.)
| | - Leonid M. Kustov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russia;
- Chemistry Department, Moscow State University, Leninskie Gory 1, Bldg. 3, 119992 Moscow, Russia
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36
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Guzel Kaya G, Aznar E, Deveci H, Martínez-Máñez R. Aerogels as promising materials for antibacterial applications: a mini-review. Biomater Sci 2021; 9:7034-7048. [PMID: 34636816 DOI: 10.1039/d1bm01147b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The increasing cases of bacterial infections originating from resistant bacteria are a serious problem globally and many approaches have been developed for different purposes to treat bacterial infections. Aerogels are a novel class of smart porous materials composed of three-dimensional networks. Recently, aerogels with the advantages of ultra-low density, high porosity, tunable particle and pore sizes, and biocompatibility have been regarded as promising carriers for the design of delivery systems. Recently, aerogels have also been provided with antibacterial activity through loading of antibacterial agents, incorporation of metal/metal oxides and via surface functionalization and coating with various functional groups. In this mini-review, the synthesis of aerogels from both conventional and low-cost precursors is reported and examples of aerogels displaying antibacterial properties are summarized. As a result, it is clear that the encouraging antibacterial performance of aerogels promotes their use in many antibacterial applications, especially in the food industry, pharmaceutics and medicine.
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Affiliation(s)
- Gulcihan Guzel Kaya
- Department of Chemical Engineering, Konya Technical University, Konya, Turkey.,Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022, Valencia, Spain.
| | - Elena Aznar
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022, Valencia, Spain. .,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain.,Unidad Mixta de Investigación en Nanomedicina y Sensores. Universitat Politècnica de València, Instituto de Investigación Sanitaria La Fe, Valencia, Spain.,Unidad Mixta UPC-CIPF de Investigación en Mecanismos de Enfermedades y Nanomedicina. Universitat Politècnica de València, Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Huseyin Deveci
- Department of Chemical Engineering, Konya Technical University, Konya, Turkey
| | - Ramón Martínez-Máñez
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico, Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022, Valencia, Spain. .,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain.,Unidad Mixta de Investigación en Nanomedicina y Sensores. Universitat Politècnica de València, Instituto de Investigación Sanitaria La Fe, Valencia, Spain.,Unidad Mixta UPC-CIPF de Investigación en Mecanismos de Enfermedades y Nanomedicina. Universitat Politècnica de València, Centro de Investigación Príncipe Felipe, Valencia, Spain
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37
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Boas M, Martin P, Vasilyev G, Lee JG, Vilensky R, Xu C, Greiner A, Zussman E. Electrostatically crosslinked cellulose nanocrystal and polyelectrolyte complex sponges with pH responsiveness. Carbohydr Polym 2021; 266:118131. [PMID: 34044947 DOI: 10.1016/j.carbpol.2021.118131] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/11/2021] [Accepted: 04/24/2021] [Indexed: 11/25/2022]
Abstract
This work focuses on the development of a responsive sponge made of an anionic cellulose nanocrystal (CNC) skeleton that is electrostatically crosslinked by a pH-responsive poly(allylamine hydrochloride) (PAH) and poly(acrylic acid) (PAA) polyelectrolyte complex (PEC). The results prove the formation of a global percolated network comprised of disordered CNC rods crosslinked by PEC clusters. The bulk density of the freeze-dried CNC-PEC sponges increases from 35 to 93 mg/cm3 with PEC concentration, while the compression modulus of dry specimens increases from 7 up to 62 kPa. At the lowest PEC concentration of 1 wt%, at pH 2.0, the compression modulus decreases to 0.9 kPa, whereas at pH 5.5, it increases to 42 kPa. The intensive complexation between sponge constituents is also reflected in a reduced ability to bind charged dyes at neutral pH values. Decreasing the pH results in an increased adsorption efficiency for anionic dyes, while raising the pH improves the cationic dye adsorption.
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Affiliation(s)
- Mor Boas
- NanoEngineering Group, Faculty of Mechanical Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Patrick Martin
- NanoEngineering Group, Faculty of Mechanical Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Gleb Vasilyev
- NanoEngineering Group, Faculty of Mechanical Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Jong-Gun Lee
- NanoEngineering Group, Faculty of Mechanical Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Rita Vilensky
- NanoEngineering Group, Faculty of Mechanical Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Chengzhang Xu
- Bavarian Polymer Institute, Macromolecular Chemistry, University of Bayreuth, Bayreuth 95440, Germany
| | - Andreas Greiner
- Bavarian Polymer Institute, Macromolecular Chemistry, University of Bayreuth, Bayreuth 95440, Germany
| | - Eyal Zussman
- NanoEngineering Group, Faculty of Mechanical Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel.
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38
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Self-Assembled Behavior of Ultralightweight Aerogel from a Mixture of CNC/CNF from Oil Palm Empty Fruit Bunches. Polymers (Basel) 2021; 13:polym13162649. [PMID: 34451189 PMCID: PMC8400918 DOI: 10.3390/polym13162649] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/04/2021] [Accepted: 08/04/2021] [Indexed: 02/02/2023] Open
Abstract
This study aims to explore the use of cellulose nanocrystals (CNC) and cellulose nanofiber (CNF), obtained from unbleached fiber of oil palm empty fruit bunches (EFB), as raw materials in fabricating aerogel, using the facile technique without solvent displacement. The CNC was isolated from sulfuric acid hydrolysis, and the CNF was fibrillated using Ultra Turrax. The CNC and CNF were mixed by ultrasonication in different ratios to produce aerogel using slow freezing (−20 °C), followed by freeze-drying. The obtained aerogel was characterized as ultralightweight and highly porous material, at the density range of 0.0227 to 0.0364 g/cm3 and porosity of 98.027 to 98.667%. Interestingly, the ratio of CNC and CNF significantly affected the characteristics of the obtained aerogel. The mixed aerogel exhibited a higher specific surface area than pure CNC or CNF, with the highest value of 202.72 m2/g for the ratio of 1:3 (CNC/CNF). In addition, the crystallinity degree of obtained aerogel showed a higher value in the range of 76.49 to 69.02%, with the highest value being obtained for higher CNC content. This study is expected to provide insight into nanocellulose-based aerogel, with a promising potential for various applications.
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John JV, McCarthy A, Wang H, Luo Z, Li H, Wang Z, Cheng F, Zhang YS, Xie J. Freeze-Casting with 3D-Printed Templates Creates Anisotropic Microchannels and Patterned Macrochannels within Biomimetic Nanofiber Aerogels for Rapid Cellular Infiltration. Adv Healthc Mater 2021; 10:e2100238. [PMID: 34029004 PMCID: PMC8222158 DOI: 10.1002/adhm.202100238] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 05/07/2021] [Indexed: 01/08/2023]
Abstract
A new approach is described for fabricating 3D poly(ε-caprolactone) (PCL)/gelatin (1:1) nanofiber aerogels with patterned macrochannels and anisotropic microchannels by freeze-casting with 3D-printed sacrificial templates. Single layer or multiple layers of macrochannels are formed through an inverse replica of 3D-printed templates. Aligned microchannels formed by partially anisotropic freezing act as interconnected pores between templated macrochannels. The resulting macro-/microchannels within nanofiber aerogels significantly increase preosteoblast infiltration in vitro. The conjugation of vascular endothelial growth factor (VEGF)-mimicking QK peptide to PCL/gelatin/gelatin methacryloyl (1:0.5:0.5) nanofiber aerogels with patterned macrochannels promotes the formation of a microvascular network of seeded human microvascular endothelial cells. Moreover, nanofiber aerogels with patterned macrochannels and anisotropic microchannels show significantly enhanced cellular infiltration rates and host tissue integration compared to aerogels without macrochannels following subcutaneous implantation in rats. Taken together, this novel class of nanofiber aerogels holds great potential in biomedical applications including tissue repair and regeneration, wound healing, and 3D tissue/disease modeling.
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Affiliation(s)
- Johnson V. John
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Alec McCarthy
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Hongjun Wang
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Zeyu Luo
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Hongbin Li
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Zixuan Wang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Feng Cheng
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Jingwei Xie
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA; Department of Mechanical and Materials Engineering, College of Engineering, University of Nebraska Lincoln, Lincoln, NE 68588, USA
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40
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Ba/Sn induced high temperature phase and microstructure evolution of silica aerogel via co-precursor sol–gel method. Chem Phys 2021. [DOI: 10.1016/j.chemphys.2021.111161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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41
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Muhammad A, Lee D, Shin Y, Park J. Recent Progress in Polysaccharide Aerogels: Their Synthesis, Application, and Future Outlook. Polymers (Basel) 2021; 13:1347. [PMID: 33924110 PMCID: PMC8074296 DOI: 10.3390/polym13081347] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 04/13/2021] [Accepted: 04/13/2021] [Indexed: 01/07/2023] Open
Abstract
Porous polysaccharides have recently attracted attention due to their porosity, abundance, and excellent properties such as sustainability and biocompatibility, thereby resulting in their numerous applications. Recent years have seen a rise in the number of studies on the utilization of polysaccharides such as cellulose, chitosan, chitin, and starch as aerogels due to their unique performance for the fabrication of porous structures. The present review explores recent progress in porous polysaccharides, particularly cellulose and chitosan, including their synthesis, application, and future outlook. Since the synthetic process is an important aspect of aerogel formation, particularly during the drying step, the process is reviewed in some detail, and a comparison is drawn between the supercritical CO2 and freeze drying processes in order to understand the aerogel formation of porous polysaccharides. Finally, the current applications of polysaccharide aerogels in drug delivery, wastewater, wound dressing, and air filtration are explored, and the limitations and outlook of the porous aerogels are discussed with respect to their future commercialization.
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Affiliation(s)
| | | | | | - Juhyun Park
- Department of Intelligent Energy and Industry, School of Chemical Engineering and Materials Science, Chung-Ang University, Seoul 06974, Korea; (A.M.); (D.L.); (Y.S.)
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Chen ZJ, Shi HH, Zheng L, Zhang H, Cha YY, Ruan HX, Zhang Y, Zhang XC. A new cancellous bone material of silk fibroin/cellulose dual network composite aerogel reinforced by nano-hydroxyapatite filler. Int J Biol Macromol 2021; 182:286-297. [PMID: 33838188 DOI: 10.1016/j.ijbiomac.2021.03.204] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/30/2021] [Accepted: 03/31/2021] [Indexed: 11/15/2022]
Abstract
Composites materials comprised of biopolymeric aerogel matrices and inorganic nano-hydroxyapatite (n-HA) fillers have received considerable attention in bone engineering. Although with significant progress in aerogel-based biomaterials, the brittleness and low strengths limit the application. The improvements in toughness and mechanical strength of aerogel-based biomaterials are in great need. In this work, an alkali urea system was used to dissolve, regenerate and gelate cellulose and silk fibroin (SF) to prepare composite aerosol. A dual network structure was shaped in the composite aerosol materials interlaced by sheet-like SF and reticular cellulose wrapping n-HA on the surface. Through uniaxial compression, the density of the composite aerogel material was close to the one of natural bone, and mechanical strength and toughness were high. Our work indicates that the composite aerogel has the same mechanical strength range as cancellous bone when the ratio of cellulose, n-HA and SF being 8:1:1. In vitro cell culture showed HEK-293T cells cultured on composite aerogels had high ability of adhesion, proliferation and differentiation. Totally, the presented biodegradable composite aerogel has application potential in bone tissue engineering.
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Affiliation(s)
- Zong-Ju Chen
- College of Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, China
| | - Hui-Hong Shi
- College of Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, China
| | - Liang Zheng
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, 163319 Daqing, China
| | - Hua Zhang
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, 163319 Daqing, China
| | - Yu-Ying Cha
- College of Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, China
| | - Hui-Xian Ruan
- College of Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, China
| | - Yi Zhang
- College of Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, China
| | - Xiu-Cheng Zhang
- College of Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, China.
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43
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Goikuria U, Larrañaga A, Lizundia E, Vilas JL. Effect of metal‐oxide nanoparticle presence and alginate cross‐linking on cellulose nanocrystal‐based aerogels. J Appl Polym Sci 2021. [DOI: 10.1002/app.50639] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Uribarri Goikuria
- Macromolecular Chemistry Research Group (LABQUIMAC), Department of Physical Chemistry, Faculty of Science and Technology University of the Basque Country (UPV/EHU) Leioa Spain
| | - Aitor Larrañaga
- SGIker, General Research Services University of the Basque Country (UPV/EHU) Leioa Spain
| | - Erlantz Lizundia
- Department of Graphic Design and Engineering Projects, Bilbao Faculty of Engineering University of the Basque Country (UPV/EHU) Bilbao Spain
- BCMaterials, Basque Center for Materials, Applications and Nanostructures UPV/EHU Science Park Leioa Spain
| | - José Luis Vilas
- Macromolecular Chemistry Research Group (LABQUIMAC), Department of Physical Chemistry, Faculty of Science and Technology University of the Basque Country (UPV/EHU) Leioa Spain
- BCMaterials, Basque Center for Materials, Applications and Nanostructures UPV/EHU Science Park Leioa Spain
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García-González CA, Sosnik A, Kalmár J, De Marco I, Erkey C, Concheiro A, Alvarez-Lorenzo C. Aerogels in drug delivery: From design to application. J Control Release 2021; 332:40-63. [PMID: 33600880 DOI: 10.1016/j.jconrel.2021.02.012] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 12/28/2022]
Abstract
Aerogels are the lightest processed solid materials on Earth and with the largest empty volume fraction in their structure. Composition versatility, modularity, and feasibility of industrial scale manufacturing are behind the fast emergence of aerogels in the drug delivery field. Compared to other 3D materials, the high porosity (interconnected mesopores) and high specific surface area of aerogels may allow faster loading of small-molecule drugs, less constrained access to inner regions of the matrix, and more efficient interactions of the biological milieu with the polymer matrix. Processing in supercritical CO2 medium for both aerogel production (drying) and drug loading (impregnation) has remarkable advantages such as absence of an oxidizing environment, clean manufacture, and easiness for the scale-up under good manufacturing practices. The aerogel solid skeleton dictates the chemical affinity to the different drugs, which in turn determines the loading efficiency and the release pattern. Aerogels can be used to increase the solubility of BCS Class II and IV drugs because the drug can be deposited in amorphous state onto the large surface area of the skeleton, which facilitates a rapid contact with the body fluids, dissolution, and release. Conversely, tuning the aerogel structure by functionalization with drug-binding moieties or stimuli-responsive components, application of coatings and incorporation of drug-loaded aerogels into other matrices may enable site-specific, stimuli-responsive, or prolonged drug release. The present review deals with last decade advances in aerogels for drug delivery. An special focus is paid first on the loading efficiency of active ingredients and release kinetics under biorelevant conditions. Subsequent sections deal with aerogels intended to address specific therapeutic demands. In addition to oral delivery, the physical properties of the aerogels appear to be very advantageous for mucosal administration routes, such as pulmonary, nasal, or transdermal. A specific section devoted to recent achievements in gene therapy and theranostics is also included. In the last section, scale up strategies and life cycle assessment are comprehensively addressed.
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Affiliation(s)
- Carlos A García-González
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Alejandro Sosnik
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa, Israel
| | - József Kalmár
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1, Debrecen H-4032, Hungary
| | - Iolanda De Marco
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Can Erkey
- Chemical and Biological Engineering Department, Koç University, 34450 Sarıyer, Istanbul, Turkey
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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45
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Shi W, Ching YC, Chuah CH. Preparation of aerogel beads and microspheres based on chitosan and cellulose for drug delivery: A review. Int J Biol Macromol 2021; 170:751-767. [PMID: 33412201 DOI: 10.1016/j.ijbiomac.2020.12.214] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 12/24/2020] [Accepted: 12/29/2020] [Indexed: 12/11/2022]
Abstract
Spherical aerogels are not easily broken during use and are easier to transport and store which can be used as templates for drug delivery. This review summarizes the possible approaches for the preparation of aerogel beads and microspheres based on chitosan and cellulose, an overview to the methods of manufacturing droplets is presented, afterwards, the transition mechanisms from sol to a spherical gel are reviewed in detail followed by different drying processes to obtain spherical aerogels with porous structures. Additionally, a specific focus is given to aerogel beads and microspheres to be regarded as drug delivery carriers. Furthermore, a core/shell architecture of aerogel beads and microspheres for controlled drug release is described and subjected to inspire readers to create novel drug release system. Finally, the conclusions and outlooks of aerogel beads and microspheres for drug delivery are summarized.
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Affiliation(s)
- Wei Shi
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Yern Chee Ching
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
| | - Cheng Hock Chuah
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
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Revin VV, Nazarova NB, Tsareva EE, Liyaskina EV, Revin VD, Pestov NA. Production of Bacterial Cellulose Aerogels With Improved Physico-Mechanical Properties and Antibacterial Effect. Front Bioeng Biotechnol 2020; 8:603407. [PMID: 33344435 PMCID: PMC7738610 DOI: 10.3389/fbioe.2020.603407] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 11/13/2020] [Indexed: 12/13/2022] Open
Abstract
Aerogels have gained significant interest in recent decades because of their unique properties such as high porosity, low density, high surface area, and excellent heat and noise insulation. However, their high cost and low mechanical strength limit their practical application. We developed appropriate conditions to produce aerogels with controlled density, high mechanical strength, and thermal characteristics from bacterial cellulose (BC) synthesized by the strain Komagataeibacter sucrofermentans H-110. Aerogels produced using TEMPO oxidized BC (OBC) exhibited high mechanical strength and lower shrinkage than those from native bacterial cellulose (NBC). Compared to the NBC, the use of TEMPO-oxidized BC with oxidation degrees (OD) of 1.44 and 3.04% led to the reduction of shrinkage of the aerogels from 41.02 to 17.08%. The strength of the aerogel produced from the TEMPO-oxidized BC with an oxidation degree of 1.44% was twice that of the aerogel produced from NBC. The addition of Mg2+ at concentrations of 20 and 40 mM during the preparation of the aerogels increased the strength of the aerogels by 4.9 times. The combined use of TEMPO-oxidized BC and Mg2+ allowed pore size reduction from 1,375 to 197.4 μm on the outer part of the aerogels, thereby decreasing the thermal conductivity coefficient from 0.036 to 0.0176 W/(m•K). Furthermore, novel biocomposites prepared from the aerogels based on NBC and OBC and sodium fusidate, which have high antibiotic activity against Staphylococcus aureus, were obtained. Owing to their antibacterial properties, these aerogels can be used as functional biomaterials in a wide range of applications such as in tissue engineering and fabrication of wound dressing materials.
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Affiliation(s)
- Viktor V Revin
- Department of Biotechnology, Bioengineering and Biochemistry, National Research Ogarev Mordovia State University, Saransk, Russia
| | - Natalia B Nazarova
- Department of Biotechnology, Bioengineering and Biochemistry, National Research Ogarev Mordovia State University, Saransk, Russia
| | - Ekaterina E Tsareva
- Department of Biotechnology, Bioengineering and Biochemistry, National Research Ogarev Mordovia State University, Saransk, Russia
| | - Elena V Liyaskina
- Department of Biotechnology, Bioengineering and Biochemistry, National Research Ogarev Mordovia State University, Saransk, Russia
| | - Vadim D Revin
- Department of Biotechnology, Bioengineering and Biochemistry, National Research Ogarev Mordovia State University, Saransk, Russia
| | - Nikolay A Pestov
- Department of Biotechnology, Bioengineering and Biochemistry, National Research Ogarev Mordovia State University, Saransk, Russia
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47
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Recent Advances in Porous 3D Cellulose Aerogels for Tissue Engineering Applications: A Review. JOURNAL OF COMPOSITES SCIENCE 2020. [DOI: 10.3390/jcs4040152] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Current approaches in developing porous 3D scaffolds face various challenges, such as failure of mimicking extracellular matrix (ECM) native building blocks, non-sustainable scaffold fabrication techniques, and lack of functionality. Polysaccharides and proteins are sustainable, inexpensive, biodegradable, and biocompatible, with structural similarities to the ECM. As a result, 3D-structured cellulose (e.g., cellulose nanofibrils, nanocrystals and bacterial nanocellulose)-based aerogels with high porosity and interconnected pores are ideal materials for biomedical applications. Such 3D scaffolds can be prepared using a green, scalable, and cost-effective freeze-drying technique. The physicochemical, mechanical, and biological characteristics of the cellulose can be improved by incorporation of proteins and other polysaccharides. This review will focus on recent developments related to the cellulose-based 3D aerogels prepared by sustainable freeze-drying methods for tissue engineering applications. We will also provide an overview of the scaffold development criteria; parameters that influenced the aerogel production by freeze-drying; and in vitro and in vivo studies of the cellulose-based porous 3D aerogel scaffolds. These efforts could potentially help to expand the role of cellulose-based 3D scaffolds as next-generation biomaterials.
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Abstract
Nowadays, most advanced technologies utilize materials from finite non-renewable resources, such as fossil
fuels, minerals, and metal ores. With the recent attention on exploring substitutes to non-renewable resources and highlighting
the reduced environmental impacts, researches are progressively being focused at the development of biodegradable
materials from biocomposite and biopolymer-based materials. This review paper aims at reporting on very recent
development in biopolymer and biocomposite. Biocomposites cater to a substantial non-food market for agro residuederived
resins and fibres. Recently, biopolymer and biocomposite with controllable lifespans have become a main subject
for various applications and fields. This paper is a timely review since there has been recent renewed attention in research
studies, for both industry and academia concerning the development of new generation of biocomposite and biopolymerbased
materials having potential uses in other areas.
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Affiliation(s)
- R.A. Ilyas
- Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - S.M. Sapuan
- Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
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49
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Advances in Manufacturing Composite Carbon Nanofiber-Based Aerogels. JOURNAL OF COMPOSITES SCIENCE 2020. [DOI: 10.3390/jcs4020073] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
This article provides an overview on manufacturing composite carbon nanofiber-based aerogels through freeze casting technology. As known, freeze casting is a relatively new manufacturing technique for generating highly porous structures. During the process, deep cooling is used first to rapidly solidify a well-dispersed slurry. Then, vacuum drying is conducted to sublimate the solvent. This allows the creation of highly porous materials. Although the freeze casting technique was initially developed for porous ceramics processing, it has found various applications, especially for making aerogels. Aerogels are highly porous materials with extremely high volume of free spaces, which contributes to the characteristics of high porosity, ultralight, large specific surface area, huge interface area, and in addition, super low thermal conductivity. Recently, carbon nanofiber aerogels have been studied to achieve exceptional properties of high stiffness, flame-retardant and thermal-insulating. The freeze casting technology has been reported for preparing carbon nanofiber composite aerogels for energy storage, energy conversion, water purification, catalysis, fire prevention etc. This review deals with freeze casting carbon nanofiber composite materials consisting of functional nanoparticles with exceptional properties. The content of this review article is organized as follows. The first part will introduce the general freeze casting manufacturing technology of aerogels with the emphasis on how to use the technology to make nanoparticle-containing composite carbon nanofiber aerogels. Then, modeling and characterization of the freeze cast particle-containing carbon nanofibers will be presented with an emphasis on modeling the thermal conductivity and electrical conductivity of the carbon nanofiber network aerogels. After that, the applications of the carbon nanofiber aerogels will be described. Examples of energy converters, supercapacitors, secondary battery electrodes, dye absorbents, sensors, and catalysts made from composite carbon nanofiber aerogels will be shown. Finally, the perspectives to future work will be presented.
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50
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New Trends in Bio-Based Aerogels. Pharmaceutics 2020; 12:pharmaceutics12050449. [PMID: 32414217 PMCID: PMC7284463 DOI: 10.3390/pharmaceutics12050449] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/27/2020] [Accepted: 05/11/2020] [Indexed: 01/16/2023] Open
Abstract
(1) Background: The fascinating properties of currently synthesized aerogels associated with the flexible approach of sol-gel chemistry play an important role in the emergence of special biomedical applications. Although it is increasingly known and mentioned, the potential of aerogels in the medical field is not sufficiently explored. Interest in aerogels has increased greatly in recent decades due to their special properties, such as high surface area, excellent thermal and acoustic properties, low density and thermal conductivity, high porosity, flame resistance and humidity, and low refractive index and dielectric constant. On the other hand, high manufacturing costs and poor mechanical strength limit the growth of the market. (2) Results: In this paper, we analyze more than 180 articles from recent literature studies focused on the dynamics of aerogels research to summarize the technologies used in manufacturing and the properties of materials based on natural polymers from renewable sources. Biomedical applications of these bio-based materials are also introduced. (3) Conclusions: Due to their complementary functionalities (bioactivity, biocompatibility, biodegradability, and unique chemistry), bio-based materials provide a vast capability for utilization in the field of interdisciplinary and multidisciplinary scientific research.
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