Mesoporous xerogel cellulose composites from biorenewable natural cotton fibers

Aiello, Ashlee; Cosby, Tyler; Mcfarland, Julia A.; Durkin, David P.; Trulove, Paul C.

doi:10.1016/j.carbpol.2021.119040

Cited by 20 publications

(19 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In a recent study, Aiello et al. [ 20 ] used a Raman spectroscopy mapping method (developed by Cosby et al. [ 28 ] ) to elucidate the structural motifs within mesoporous cotton yarns identical to the one used in this study.…”

Section: Resultsmentioning

confidence: 99%

“…If we assume that the AgNP sizes observed by SEM are uniform throughout the composite (as has been observed in our previous studies on Pd-and Ag-based NPs prepared via IW in cellulosic materials [18,19] ), this trend could be due to physical differences in the mesoporous catalyst support. In a recent study, Aiello et al [20] used a Raman spectroscopy mapping method (developed by Cosby et al [28] ) to elucidate the structural motifs within mesoporous cotton yarns identical to the one used in this study. Based on these previous studies, the mesoporous cotton support consists of bundles of yarns welded together, each of which contains an open porous shell of disordered cellulose II and a collapsed, unwelded core of the original cellulose I.…”

Section: Catalytic Performance Of Agnps-nfw Compositesmentioning

confidence: 99%

“…Recently, our group has shown how the NFW rinsing procedure can be used to tailor the surface area and mesoporosity of the cellulose, a critical consideration for using this material as a catalyst support. [20,21] In short, the NFW process creates a mesoporous structure which will collapse when oven drying from a polar solvent (e.g., water) or be retained when lyophilizing from a nonpolar solvent (e.g., cyclohexane, CH). The resulting mesoporous NFW cellulose (in this case, welded adjacent strands of cotton thread) expresses surface areas ranging from less than 0.01 m 2 g -1 to greater than 200 m 2 g -1 based on final solvent rinse and drying technique.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mesoporous Natural Fiber Welded Cellulose Containing Silver Nanoparticles as a Recyclable Heterogeneous Catalyst

Larm

Gulbrandson

Stachurski

et al. 2023

Macro Materials & Eng

Self Cite

View full text Add to dashboard Cite

Silver nanoparticles (AgNPs) are presented within mesoporous natural fiber welded (NFW) cellulose and demonstrated as robust catalysts to reduce 4‐nitrophenol using sodium borohydride. Growing AgNPs this way enables their retention within a nonderivatized, mesoporous, all‐cellulose NFW composite. At an AgNP loading of 1.0 wt%, no leaching is observed during rinsing with polar and nonpolar solvents or any of 12 catalyst cycles and the cloth is easily retrievable and reusable. Comparatively, a 1.0 wt% AgNP loading on non‐NFW cotton thread loses ≈95% of the starting Ag under similar conditions. Only at higher loadings is a very slow leaching observed in the NFW composite (<10% Ag loss). With a turnover frequency of 0.9 h–1 (as compared to 2.2 h–1 for the non‐NFW cotton thread), the catalytic activity suffers only minor impedance from the NFW structure while affording significant promise in future applications for leach‐resistant nonderivatized cotton (e.g., TiO2 or photonic nanomaterials). Finally, it is shown that combustion of AgNPs‐NFW composites creates Ag residues distinct from materials produced via combustion of AgNPs on non‐NFW cotton. While the residues produced comprise Ag and residual carbon, this method is viable for producing metal “sponges” from monometallic and bimetallic NPs on mesoporous cellulose.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Catalytic Performance Of Agnps-nfw Compositesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mesoporous Natural Fiber Welded Cellulose Containing Silver Nanoparticles as a Recyclable Heterogeneous Catalyst

Larm

Gulbrandson

Stachurski

et al. 2023

Macro Materials & Eng

Self Cite

View full text Add to dashboard Cite

show abstract

“…The attractive properties of the biopolymeric porous hydrogels arise from their extraordinary flexibility during the sol–gel phase, which is mostly combined with various drying techniques, leading to the formation of the desired xerogel. Cellulose xerogel has been fabricated using a facile approach consisting of three steps: the partial ionic liquid dissolution of cellulose suspension, non-solvent rinsing, and drying [ 30 ]. In a different study, cellulose nanofiber xerogels were fabricated by Toivonen et al [ 31 ] through a solvent exchange process (with octane), the vacuum filtration of their solvent dispersion, and finally, ambient drying.…”

Section: Xerogel Functional Materialsmentioning

confidence: 99%

Insights into the Role of Biopolymer-Based Xerogels in Biomedical Applications

Khalil

Yahya

Tajarudin

et al. 2022

Gels

View full text Add to dashboard Cite

Xerogels are advanced, functional, porous materials consisting of ambient, dried, cross-linked polymeric networks. They possess characteristics such as high porosity, great surface area, and an affordable preparation route; they can be prepared from several organic and inorganic precursors for numerous applications. Owing to their desired properties, these materials were found to be suitable for several medical and biomedical applications; the high drug-loading capacity of xerogels and their ability to maintain sustained drug release make them highly desirable for drug delivery applications. As biopolymers and chemical-free materials, they have been also utilized in tissue engineering and regenerative medicine due to their high biocompatibility, non-immunogenicity, and non-cytotoxicity. Biopolymers have the ability to interact, cross-link, and/or trap several active agents, such as antibiotic or natural antimicrobial substances, which is useful in wound dressing and healing applications, and they can also be used to trap antibodies, enzymes, and cells for biosensing and monitoring applications. This review presents, for the first time, an introduction to biopolymeric xerogels, their fabrication approach, and their properties. We present the biological properties that make these materials suitable for many biomedical applications and discuss the most recent works regarding their applications, including drug delivery, wound healing and dressing, tissue scaffolding, and biosensing.

show abstract

“…Biopolymeric X-G are porous architectures of varying peculiar and enchanting properties that undergone versatile studies for versatile biomedical uses such as manipulatable and sustained drug conveyance, wound dressing as well as repairing uses, tissue engineering scaffolds, and so on [43]. As a result of their biocompatibility, zero-cytotoxicity, and nil-immunogenicity, biopolymeric X-G are perceived to be safer in comparison with inorganic as well as synthetic substrates for medical uses [42][43][44].…”

Section: Biopolymeric X-g In Biomedical Usesmentioning

confidence: 99%

Characterization and Fabrication of Xerogel Polymeric Nanocomposites and Multifunctional Applications

Idumah

2022

Preprint

View full text Add to dashboard Cite

Xerogel (X-G)@polymeric nanocomposites are hybrid nanomaterials constituted of xerogels (X-Gs) synergized with polymeric materials with enclosed nanoparticulates in either physical or covalently inclined cross-linking with one another and/or with the nano-substrates. X-G@biopolymeric bionanocomposites are hybrid bionanomaterials constructed by synergizing biopolymeric matrices with dispersed organic or inorganic nanoparticulates with improved properties for multifunctional applications. Hence, this paper elucidates novel trends in synthesis, construction, characterizations, properties and multifunctional applications of X-G@polymeric nanocomposites.

show abstract

Mesoporous xerogel cellulose composites from biorenewable natural cotton fibers

Cited by 20 publications

References 39 publications

Mesoporous Natural Fiber Welded Cellulose Containing Silver Nanoparticles as a Recyclable Heterogeneous Catalyst

Mesoporous Natural Fiber Welded Cellulose Containing Silver Nanoparticles as a Recyclable Heterogeneous Catalyst

Insights into the Role of Biopolymer-Based Xerogels in Biomedical Applications

Characterization and Fabrication of Xerogel Polymeric Nanocomposites and Multifunctional Applications

Contact Info

Product

Resources

About