Isolation of cellulose nanocrystals from different waste bio-mass collating their liquid crystal ordering with morphological exploration

Verma, Chhavi; Chhajed, Monika; Gupta, Pragya; Roy, Sunanda; Maji, Pradip K.

doi:10.1016/j.ijbiomac.2021.02.038

Cited by 62 publications

(34 citation statements)

References 40 publications

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“…In future work, the developed here nanofibrillar structures can be functionalized by different essential functional components, for example, pectins, [ 88,89 ] chitosan, [ 90 ] gentamicin, [ 91 ] which can be used to regulate environment and antibacterial properties. [ 92,93 ] Alternatively, nanoparticle functionalization of the surfaces would enable remote release capabilities, [ 94 ] while functionalization with anisotropic structure would permit mechanical properties control.…”

Section: Resultsmentioning

confidence: 99%

Nanofibrillar Hydrogels by Temperature Driven Self‐Assembly: New Structures for Cell Growth and Their Biological and Medical Implications

Abalymov

Santos

Meeren

et al. 2021

Adv Materials Inter

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Nanofibrillar structures are of importance in biomedicine, including lung, cardiovascular, liver, skin, neuroscience research, and tissue engineering. Developing advanced materials and interfaces should contribute to uncovering the mechanisms of diseases aiming to find cure. The similarity between the extracellular matrix (ECM) of soft tissue and hydrogels, characterized by a high water‐content viscoelastic polymeric fiber, has stimulated the development of hydrogels for biomedical applications. However, most hydrogels have a meshy structure resulting in poor cell adhesion properties. Here, fabrication of gellan gum (GG) hydrogels arranged by thermally driven self‐assembly into a network of nanofibers is reported. Mechanical properties of such nanofibrillar hydrogels are analyzed on micro‐ and macroscales. As a result, and in sharp contrast to commonly produced meshy GG hydrogels, the nanofiber‐based hydrogels facilitate the adherence and lead to proliferation of cells. This is assigned to microstructural rearrangements characterized by a changing density and pore size decrease, accompanied with a lower water content. Cell growth on such nanofibrillar structures is investigated for osteoblasts, which are chosen as a model system. The developed nanofibrous interfaces in this study are envisioned to be applicable for growing various types of cells and they should contribute to better understanding cell interactions with ECM.

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Section: Resultsmentioning

confidence: 99%

Nanofibrillar Hydrogels by Temperature Driven Self‐Assembly: New Structures for Cell Growth and Their Biological and Medical Implications

Abalymov

Santos

Meeren

et al. 2021

Adv Materials Inter

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“…Cellulose nanocrystals (CNCs) are the crystalline region of cellulose, isolated from cellulose pulp fiber using acid hydrolysis by removing the amorphous region of cellulose while leaving the only crystalline region of cellulose [ 1 , 6 ]. CNCs exhibit as elongated and cylindrical rod of crystalline cellulose with a width of 2–70 nm, length of 100–600 nm, and crystallinity index of 75–88% [ 6 , 7 , 8 ]. The distinct properties of CNCs, such as its light weight, its distinctive optical properties, its abundant availability, its high surface area, its excellent thermal and mechanical strength, its biodegradability, and its environmental friendliness, make CNCs an encouraging raw material for many advanced implementations [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Biosorption of Cr(VI) Using Cellulose Nanocrystals Isolated from the Waterless Pulping of Waste Cotton Cloths with Supercritical CO2: Isothermal, Kinetics, and Thermodynamics Studies

et al. 2022

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In the present study, supercritical carbon dioxide (scCO2) was utilized as a waterless pulping for the isolation of cellulose nanocrystals (CNCs) from waste cotton cloths (WCCs). The isolation of CNCs from the scCO2-treated WCCs’ fiber was carried out using sulphuric acid hydrolysis. The morphological and physicochemical properties analyses showed that the CNCs isolated from the WCCs had a rod-like structure, porous surface, were crystalline, and had a length of 100.03 ± 1.15 nm and a width of 7.92 ± 0.53 nm. Moreover, CNCs isolated from WCCs had a large specific surface area and a negative surface area with uniform nano-size particles. The CNCs isolated from WCCs were utilized as an adsorbent for the hexavalent chromium [Cr(VI)] removal from aqueous solution with varying parameters, such as treatment time, adsorbent doses, pH, and temperature. It was found that the CNCs isolated from the WCCs were a bio-sorbent for the Cr(VI) removal. The maximum Cr(VI) removal was determined to be 96.97% at pH 2, 1.5 g/L of adsorbent doses, the temperature of 60 °C, and the treatment time of 30 min. The adsorption behavior of CNCs for Cr(VI) removal was determined using isothermal, kinetics, and thermodynamics properties analyses. The findings of the present study revealed that CNCs isolated from the WCCs could be utilized as a bio-sorbent for Cr(VI) removal.

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“…CNCs are highly crystalline stiff nanorods, transparent, lightweight, birefringent, and mechanically robust, thus providing critical structural support to plants with high mechanical strength (Young’s modulus:20–50 GPa). , The properties of CNCs are intensely associated with their biological origin and extraction parameters. CNCs with varying sizes, shapes, and optical features were isolated from different cellulose sources . CNCs have been a fascinating choice for broad applications due to their sizable tunable surface hydroxyl groups.…”

Section: Introductionmentioning

confidence: 99%

“…CNCs with varying sizes, shapes, and optical features were isolated from different cellulose sources. 15 CNCs have been a fascinating choice for broad applications due to their sizable tunable surface hydroxyl groups. These hydroxyl groups allow for the chemical alteration of the physical and chemical properties to develop materials with multifunctional features.…”

Section: Introductionmentioning

confidence: 99%

Cellulose Nanocrystals for Environment-Friendly Self-Assembled Stimuli Doped Multisensing Photonics

Verma

Chhajed

Singh

et al. 2022

ACS Appl. Polym. Mater.

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Materials such as cellulose and its derivatives are attracting growing attention worldwide to recognize their potential in responding to increasingly complex technological requirements. The rising demand for multifunctional materials may be fulfilled with controllable functionalities by using self-assembling techniques. Photonic stimuli-responsive materials based on cellulose can shift color reversibly when responding to external inputs. Cellulose nanocrystals (CNCs) are biorenewable materials that self-assemble themselves into a chiral nematic ordering exhibiting iridescent colors. The CNCs display unique optical features in response to environmental stimuli due to the structural coloration mechanism. This review summarizes the CNC-based multisensing photonic structures in response to external dopants. The inclusion of functional polymers, small molecules, or other optically active components into CNC precursors can enhance and stabilize their uniformity, allowing better stimuli interaction with the CNCs. This review reveals that cellulose-based nanomaterials are a potential candidate for designing advanced functional photonics materials in diverse applications for smart textiles, intelligent packaging, security coding, photonic papers, humidity sensors, etc., with some limitations to overcome.

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Isolation of cellulose nanocrystals from different waste bio-mass collating their liquid crystal ordering with morphological exploration

Cited by 62 publications

References 40 publications

Nanofibrillar Hydrogels by Temperature Driven Self‐Assembly: New Structures for Cell Growth and Their Biological and Medical Implications

Nanofibrillar Hydrogels by Temperature Driven Self‐Assembly: New Structures for Cell Growth and Their Biological and Medical Implications

Biosorption of Cr(VI) Using Cellulose Nanocrystals Isolated from the Waterless Pulping of Waste Cotton Cloths with Supercritical CO2: Isothermal, Kinetics, and Thermodynamics Studies

Cellulose Nanocrystals for Environment-Friendly Self-Assembled Stimuli Doped Multisensing Photonics

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