Pristine Fibers Research Articles

Biosynthetic protein and nanocellulose composite fibers with extraordinary mechanical performance

Typical cellulose fibers exhibit a high mechanical strength but very low toughness, which severely limits their high-tech applications. It is thus becoming urgently important to develop new strategies to simultaneously improve their strength and toughness. In this regard, a new type of biomacromolecular composite fibers is fabricated by wet-spinning a solution of biosynthetic protein and nanocellulose. In stark contrast to pristine cellulose fibers, significantly improved mechanical performance, e.g., 551.2 MPa maximum breaking strength, 40.6 MJ m−3 toughness, and 12.5% extensibility were realized in a versatile way. Notably, robust fiber meshes with good impact resistance ability were developed. They can withstand a gravity potential energy of 0.020 J, which is 1.4-fold higher than their pristine nanocellulose counterparts. Moreover, their excellent biocompatibility and superior mechanical properties allow the composite biological fibers for efficient surgical suturing. This work offers a new strategy to fabricate high-performance biological fibers for high-tech applications.

Boosting Capacitive Deionization Performance of Commercial Carbon Fibers Cloth via Structural Regulation Based on Catalytic‐Etching Effect

Monolithic carbon electrodes with robust mechanical integrity and porous architecture are highly desired for capacitive deionization but remain challenging. Owing to the excellent mechanical strength and electroconductivity, commercial carbon fibers cloth demonstrates great potential as high‐performance electrodes for ions storage. Despite this, its direct application on capacitive deionization is rarely reported in terms of limited pore structure and natural hydrophobicity. Herein, a powerful metal‐organic framework‐engaged structural regulation strategy is developed to boost the desalination properties of carbon fibers. The obtained porous carbon fibers features hierarchical porous structure and hydrophilic surface providing abundant ions‐accessible sites, and continuous graphitized carbon core ensuring rapid electrons transport. The catalytic‐etching mechanism involving oxidation of Co and subsequent carbonthermal reduction is proposed and highly relies on annealing temperature and holding time. When directly evaluated as a current collector‐free capacitive deionization electrode, the porous carbon fibers demonstrates much superior desalination capability than pristine carbon fibers, and remarkable cyclic stability up to 20 h with negligible degeneration. Particularly, the PCF‐1000 showcases the highest areal salt adsorption capacity of 0.037 mg cm−2 among carbon microfibers. Moreover, monolithic porous carbon fibers‐carbon nanotubes with increased active sites and good structural integrity by in‐situ growth of carbon nanotubes are further fabricated to enhance the desalination performance (0.051 mg cm−2). This work demonstrates the great potential of carbon fibers in constructing high‐efficient and robust monolithic electrode for capacitive deionization.

Molecular-Level Lubrication Effect of 0D Nanodiamonds for Highly Bendable Graphene Liquid Crystalline Fibers.

Graphene fiber is emerging as a new class of carbon-based fiber with distinctive material properties particularly useful for electroconductive components for wearable devices. Presently, stretchable and bendable graphene fibers are principally employing soft dielectric additives, such as polymers, which can significantly deteriorate the genuine electrical properties of pristine graphene-based structures. We report molecular-level lubricating nanodiamonds as an effective physical property modifier to improve the mechanical flexibility of graphene fibers by relieving the tight interlayer stacking among graphene sheets. Nanoscale-sized NDs effectively increase the tensile strain and bending strain of graphene/nanodiamond composite fibers while maintaining the genuine electrical conductivity of pristine graphene-based fibers. The molecular-level lubricating mechanism is elucidated by friction force microscopy on the nanoscale as well as by shear stress measurement on the macroscopic scale. The resultant highly bendable graphene/nanodiamond composite fiber is successfully weaved into all graphene fiber-based textiles and wearable Joule heaters, proposing the potential for reliable wearable applications.

Rapid mold-free fabrication of long functional PDMS fibers

Polydimethylsiloxane (PDMS), an optically transparent and inert material, is widely used in biological and semiconductor applications owing to its excellent chemical stability and moldability. This study proposes a thermally induced wet spinning method for the fabrication of long PDMS fibers with a constant width. PDMS is a thermoset polymer that undergoes chemical crosslinking when heated, and the thermally induced wet spinning process allows for the formation of fibers without a mold. A rapid thermal curing step was used to instantly solidify the thermoset polymer, where immediate chemical crosslinking of fluid PDMS solution was achieved upon contact with an oil coagulation bath at 180–230 °C. A rapid stretching process was applied to pull out and control the width of the fiber, and the PDMS was stretched at a rate of 1.2–12.5 m/min during the crosslinking process. The fabricated pristine PDMS fibers were transparent and maintained a crosslinked network with excellent mechanical strength. In addition, the PDMS fibers were functionalized with silica nanoparticles, carbon nanotubes, and pores to adjust their transparency/opacity, conductivity, and heat insulation properties, respectively, for various applications. The proposed thermally induced wet spinning method shows promise for overcoming the limitations of existing molding methods, in which the PDMS fibers cannot be lengthened. Furthermore, the process is environmentally friendly and economical owing to the use of edible canola oil, which reduces the volume of harmful solvents and additives during fiber production.

Surface refinement of steel fiber using nanosilica and silver and its effect on static and dynamic pullout resistance of reactive powder concrete

This study investigated the effects of steel fibers, surface-reformed by silver and nanosilica coatings, on the static and dynamic pullout behaviors of reactive powder concrete (RPC). To consider the fiber orientation effect, two different inclination angles of 0° and 45° were adopted. The static bond strength of straight steel fiber in RPC significantly increased because of the nanosilica coating but was marginally affected by the silver coating. More than twice the bond strength and pullout energy were achieved by the nanosilica coating compared to the pristine steel fiber. The loading rate sensitivity on the pullout resistance of straight steel fibers from RPC was found regardless of the surface refinement. However, under inclined conditions, the pullout resistances of the silvered and nanosilica-coated steel fibers in RPC were almost insensitive to the loading rate or were even reduced at impact loads. Thus, although the nanosilica-coated steel fiber led to the best pullout resistance from RPC under impact loads, the deposited silver and nanosilica particles negatively affected the rate sensitivity of the pullout resistance of RPC. When the fibers were coated with nanosilica and inclined or impact loads were applied, more scratches and matrix debris were found on the surface of the pulled-out steel fibers, verifying the enhancement of interfacial frictional resistance at the fiber-matrix interface.

The cellulose fibers functionalized with star-like zinc oxide nanoparticles with boosted antibacterial performance for hygienic products

Bacterial infectious diseases are serious health problem which extends to economic and social complications. Moreover, bacterial antibiotic resistance, lack of suitable vaccine or emergence of new mutations is forcing the development of novel antimicrobial agents. The objective of this study is to synthesize and characterize star-like zinc oxide nanoparticles for the application of antibacterial activities in cellulose based hygiene products. ZnO NPs were in situ synthesized via precipitation method on the surface of cellulose fibers. Since bactericidal activity of nanoparticles in part depends on the concentration in the growth medium, various amount of ZnO was incorporated into cellulose matrix ranging from 1 to 3 wt%. Microscopic (TEM, SEM) and spectroscopic (FT-IR, XRD) methods were utilized to investigate the final products. The infrared absorption spectra analysis supported by theoretical finding that during the reaction, ZnO nanoparticles could be bonded with cellulose fibers via hydrogen bonding. The yield of functionalization was determined through thermogravimetric analysis. Collected data proved the successful functionalization of the cellulose fibers with nanoparticles. Static contact angle measurements were carried out showing absorptive character of as prepared fabrics. All the samples were tested for the antibacterial properties and the results were compared to the samples prepared from the pristine cellulose fibers. Moreover, mechanical tests were performed revealing that the addition of only 2 wt% of the nanofiller boosted tensile, tearing and bursting strength by a factor of 1.6, 1.4 and 2.2 in comparison to unfunctionalized paper sample, respectively. Fabricated fabric presenting high hydrophilicity and antibacterial properties have gained increased applications in fabric industry, including hygiene product industry and hence the result of this study would be a welcomed option.

Carbon fiber sizing agents based on renewable terpenes

The optimization of fiber-matrix adhesion is a persistent challenge in any fiber-based composite materials. Usually, commercial sizing agents are applied to carbon fiber surfaces, but these are unknown complex mixtures of proprietary nature. Here, naturally derived terpenes, borneol and terpeniol, were chemically modified and used as sizing agents for carbon fibers. To tailor the surface interactions, carbon fibers possessing enriched surface exposed amines, thiols, and carboxylic acids were fabricated and sized. These novel sizing agents alone improve the IFSS of pristine fibers (up to +92%) in an epoxy resin. Surface modification also shows an increase the IFSS of pristine fibers prior to the addition of sizing (up to +142%). More critically, the IFSS is further enhanced when coupling surface modification techniques with application of sizing agents (up to +221% compared to unsized pristine fiber). This work offers a unique set of materials and untapped chemical pool for potential application in composites and interface tailoring.

Biomimetic surface modification of UHMWPE fibers to enhance interfacial adhesion with rubber matrix via constructing polydopamine functionalization platform and then depositing zinc oxide nanoparticles

Aimed at enhancing the interfacial adhesion property of ultrahigh molecular weight polyethylene (UHMWPE) fibers reinforced rubber composites, a biomimetic surface modification strategy was put forward by constructing polydopamine (PDA) functionalization platform and then depositing zinc oxide nanoparticles (nano-ZnO). Inspired by the mechanism of mussel adhesion, a layer of PDA film was coated onto the fiber surface by dopamine oxidative self-polymerization reaction. Subsequently, through the coordination interaction between nano-ZnO and PDA, the deposition of nano-ZnO was realized. The results of characterization analysis, including fiber surface morphologies, chemical compositions and structures, not only confirmed the process of the proposed modification but also elucidated the interactions among UHMWPE, PDA and nano-ZnO. The H-pull test showed that the maximum H-pull force of modified UHMWPE fibers to rubber matrix was up to 34.3 N, increased by 85.4% compared with that of pristine UHMWPE fibers, which could be mainly attributed to the combined action of interfacial physicochemical interactions and mechanical interlocking. Moreover, it was found that the reaction time should be controlled to avoid the degradation of adhesion due to excessive modification.

A study on mechanical properties and thermal properties of UHMWPE/MWCNT composite fiber with MWCNT content and draw ratio

In this study, the mechanical properties and thermal properties of ultra-high molecular weight polyethylene (UHMWPE)/multi wall carbon nanotubes (MWCNT) composite fiber were investigated with different weight percent of the MWCNT contents and draw ratio. To verified the thermal properties of the MWCNT/UHMWPE composite fiber, DSC and TGA analysis were performed. The addition of MWCNT and the higher draw ratio improved the thermal properties of the UHMWPE composite fiber by improving the crystallinity of the polymer. By adding 2 wt% MWCNT, UHWMPE fibers with tensile strengths of 3.85 GPa and young’s modulus of 27.43 GPa could fabricated. In comparison with the pristine UHMWPE fiber with same draw ratio conditions, there values shows increases of 21% in tensile strength and 16% in young’s modulus value. However, in the case of the specimens in which the MWCNT content of 6wt% and 10wt% was added to the UHMWPE fiber, the tensile strength and tensile modulus gradually decreased. We proved by experimentally that the mechanism of strengthening the tensile strength of UHMWPE fibers with MWCNT content of 2wt% is to block craze stretching and reduce defects inside the amorphous region by improving the crystalline region. However, the MWCNT contents is increased by 6wt% or more, the nanofillers start to agglomerate and act as impurities and stress concentration factors, thereby reducing the mechanical properties of the UHMWPE composite fiber.

Mechanically Reinforced Silkworm Silk Fiber by Hot Stretching.

Silkworm silk, which is obtained from domesticated Bombyx mori (B. mori), can be produced in a large scale. However, the mechanical properties of silkworm silk are inferior to its counterpart, spider dragline silk. Therefore, researchers are continuously exploring approaches to reinforce silkworm silk. Herein, we report a facile and scalable hot stretching process to reinforce natural silk fibers obtained from silkworm cocoons. Experimental results show that the obtained hot-stretched silk fibers (HSSFs) retain the chemical components of the original silk fibers while being endowed with increased β-sheet nanocrystal content and crystalline orientation, leading to enhanced mechanical properties. Significantly, the average modulus of the HSSFs reaches 21.6 ± 2.8 GPa, which is about twice that of pristine silkworm silk fibers (11.0 ± 1.7 GPa). Besides, the tensile strength of the HSSFs reaches 0.77 ± 0.13 GPa, which is also obviously higher than that of the pristine silk (0.56 ± 0.08 GPa). The results show that the hot stretching treatment is effective and efficient for producing superstiff, strong, and tough silkworm silk fibers. We anticipate this approach may be also effective for reinforcing other natural or artificial polymer fibers or films containing abundant hydrogen bonds.

Fiber optic sensors based on circular and elliptical polymer optical fiber for measuring refractive index of liquids

Measurement of refractive index (RI) is required in laboratory and industry for many applications, especially that of liquids. Though there have been commercial products for precision RI measurement, miniaturized and low-cost solutions are still desired and thus have attracted a great number of researchers’ attention. Among various competitive technologies, fiber optic sensors based on macro-bending loss (e.g. U-shaped fibers) exhibit advantages including facile fabrication and low cost. In order to make this kind of sensors more reliable for real applications, this study proposes to bend a section of pristine polymer optical fibers around circular or elliptical solid slices to form the sensor tip for sensing RI of liquids. Such configuration can precisely and firmly fix the geometry of the bent fiber, while most bent fibers in U-shaped sensors previously reported are free-standing and their shapes are prone to change in long-term usage. Impacts of bending shape and radius on sensors’ sensitivity to RI are investigated. Among all fabricated sensors, the highest sensitivity is −66.58 dB/RIU in the RI range of 1.33–1.46, which is yielded by the sensor consisted of POF in elliptical shape in diameters of 5 and 3 mm. It is lower than those of U-shaped silica fibers bent in smaller diameters or those of cladding-processed U-shaped sensors. However, the proposed sensor has advantages in precise geometry control and facile fabrication, making it competitive to other RI sensing techniques for those cost-sensitive applications. Besides, the geometry of the fiber can be optimized to further enhance sensors’ sensitivity in future.

Prediction of chain-growth polymerisation of vinyl ester resin structure at the carbon fibre interface

Carbon-fibre reinforced polymer composites play an important role in the aerospace, marine, construction and automotive transport industries due to their light weight and robust mechanical performance. The interface between the resin matrix and the carbon fibre surface is a critical zone, where poor interactions at this interface may give rise to a point of failure in the composite. It is therefore critical to develop structure/property relationships for these interfaces at the molecular level. This is challenging to achieve using experimental approaches alone, and molecular simulations can provide complementary data to achieve this goal. Although substantial progress has advanced such understanding of the interface based on epoxy resins, the analogous vinyl ester resin interface is relatively under-explored in terms of molecular simulation, despite their widespread utility in many applications. This may be due to the additional complexity inherent to the challenges of modelling chain-growth polymerisation at the interface. In this work, molecular simulations are used to polymerise a vinyl ester/styrene resin in the presence of a pristine fibre surface. The evolution of the polymer chains is characterised in terms of chain length, composition, and distance from the surface plane. The interfacial shear stress is calculated using a computational pull-out test, revealing poor interfacial integrity, consistent with recent experimental data. These findings provide a solid basis for future investigations to explore surface functionalisation strategies of the fibre surface to best tailor this critical interface in vinyl-ester resin carbon fibre composites.

Protein-induced decoration of applying MXene directly to UHMWPE fibers and fabrics for improved adhesion properties and electronic textiles

MXene, as an attractive functional and structural material with high conductivity, wettability, surface activity and plenty of superior mechanical properties, is applied for the first time to directly decorate ultra-high molecular weight polyethylene fiber (UHMWPE) and fabrics with a unique bovine serum albumin (BSA)-induced technology. The adoption of BSA successfully turns UHMWPE fiber into an adhesive platform toward the efficient assembly and wrapping of MXene. The results showed that the functionalization of MXene changed the UHMWPE fiber surface topography and increased the wettability and surface activity, which can enhance the mechanical engagement and offer sufficient reactive sites with resin matrix, providing efficiently improved interfacial properties. The interfacial shear strength between the UHMWPE/BSA/MXene fiber and epoxy increased by 116% when compared with pristine UHMWPE fiber. Besides, the peeling strength of MXene decorated UHMWPE fabric/rubber laminate demonstrates more than two times higher than the untreated UHMWPE fabric reinforced rubber composite. Furthermore, with the excellent conductivity of MXene, the UHMWPE/BSA/MXene fiber exhibits an electrical conductivity of 106 S/m, which is able to work as a conductor for the application of electronic textiles.

Layer-by-Layer Assembled, Amphiphilic and Antibacterial Hybrid Electrospun Mat Made from Polypropylene and Chitosan Fibers

In this study, hybrid fiber mat (HFPP-CS) consisting of both chlorinated polypropylene and chitosan fibers (FPP-Cl and FCS) is obtained by assembling layer-by-layer for the first time using electrospinning process. Morphological, wettability, structural and thermal properties of HFPP-CS are investigated in detail by Scanning electron microscopy (SEM), water contact angle (WCA) measurement, fourier transform infrared spectroscopy, thermogravimetric analysis and differential scanning calorimetry analyses, respectively, comparing with FPP-Cl and FCS. Furthermore, the antibacterial activity of all samples was evaluated against to gram positive Staphylococcus aureus (S. aureus) and gram negative Escherichia coli (E. coli) bacteria. SEM analysis proves to HFPP-CS has a circular and smooth morphology and also comprises of microscale FPP-Cl and nanoscale FCS layers within the range of 2.1–2.7 μm and 175–475 nm, respectively. The incorporation of nano-FCS layer on micro-FPP-Cl layer leads to diminution in the hydrophobicity from WCA value of 137° ± 2 to 124° ± 2, but enhancement in the thermostability and glass transition temperature of the resulting fiber mat. The antibacterial activity results show that HFPP-CS has higher inhibition effect against to S. aureus and E. coli than FPP-Cl but lower than FCS. In general, it is anticipated that the prepared amphiphilic and antibacterial HFPP-CS can be employed as potential biomaterial for a variety of bioengineering applications. The novel hybrid fiber mat having natural and synthetic polymer layers has prepared by assembling layer-by-layer using electrospinning. The achieved amphiphilic hybrid fiber mat demonstrates higher thermal properties than that of each pristine fiber layer. The hybrid fiber mat has good antibacterial activity against to both gram positive and gram negative bacteria.

Development of Porous Polyacrylonitrile Composite Fibers: New Precursor Fibers with High Thermal Stability

Polyacrylonitrile (PAN) fibers with unique properties are becoming increasingly important as precursors for the fabrication of carbon fibers. Here, we suggest the preparation of porous PAN composite fibers to increase the homogeneity and thermal stability of the fibers. Based on the thermodynamics of polymer solutions, the ternary phase diagram of the PAN/H2O/Dimethylformamide (DMF) system has been modeled to introduce porosity in the fibers. Adding a conscious amount of water (4.1 wt.%) as a non-solvent to the PAN solution containing 1 wt.% of graphene oxide (GO), followed by wet spinning, has led to the preparation of porous composite fibers with high thermal stability and unique physicochemical properties. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) results elucidate that PAN/GO/H2O porous composite fibers have a higher thermal decomposition temperature, increased residual weight, reduced heat release rate, and higher crystallinity in comparison with the pristine PAN fibers, being a promising precursor for the development of high-performance carbon fibers. The results show a promising application window of the synthesized PAN fibers in electronic and electrochemical devices.

Photosensitive Yb-Doped Germanophosphosilicate Artificial Rayleigh Fibers as a Base of Random Lasers

Asingle-mode Yb-doped germanophosphosilicate fiber with ultra-low optical losses (less than 2 dB/km) was fabricated by means of the MCVD method utilizing an all-gas-phase deposition technique developed “in house”. The absorption and luminescent spectral properties of the fiber were thoroughly studied. The photosensitivity of the pristine (non-hydrogenated) fiber to 248 nm-laser radiation was confirmed by means of fiber Bragg grating (FBG) inscription directly during the drawing process. The random single-frequency lasing at the 1060-nm-wavelength obtained in the 21-m-long fiber with an array of weak FBG was reported. The developed laser slope efficiency in the backward-pumping scheme was measured as high as 32%.

Calcia-doped ceria hybrid coating functionalized PBO fibers with excellent UV resistance and improved interfacial compatibility with cyanate ester resins

Poly(p-phenylene-2,6-benzobisoxazole) (PBO) fibers display weak outdoor stability and reliability due to their poor UV resistance and chemically inert surface. In this work, calcia-doped ceria (Ce0.8Ca0.2O1.8) nanoparticles was fabricated via chemical co-precipitation method, and the novel Ce0.8Ca0.2O1.8/P(S-co-BCB-co-MMA) organic–inorganic hybrid coating was then designed and prepared for surface functionalization of PBO fibers (PBO@P-Ce0.8Ca0.2O1.8). Organic-inorganic hybrid coating presents high surface roughness and excellent UV resistance. When the concentration of Ce0.8Ca0.2O1.8 nanoparticles with the particle size of about 50 nm is 0.6 wt%, PBO@P-Ce0.8Ca0.2O1.8–3 fibers (sample 4, 0.6 wt%) present the best interfacial bonding strength with modified bisphenol A cyanate (BADCy) resins, the single fiber pull-out strength between sample 4 and modified BADCy resins reaches the maximum value of 4.6 MPa, 48.4% higher than that of pristine PBO fibers (sample 0, 3.1 MPa). Meanwhile, the tensile strength of sample 4 after 288 h UV aging is increased from 1.4 GPa (PBO fibers) to 4.1 GPa. Overall, functionalized PBO fibers in this work demonstrate higher surface activity, excellent UV resistance and improved interfacial bonding strength with modified BADCy resins, which provides a new idea for functionalizing the surface activity and UV resistance of high-performance polymer fibers.

Visible-light active collagen-TiO2 nanobio-sponge for water remediation: A sustainable approach

Pollution owing to the dye house wastewater and negligent disposal of proteinaceous wastes are major threats to the environment. The conventional water treatment and solid waste management techniques are neither efficient nor cost effective. Here, we developed a collagen-TiO2 nanoparticles based photocatalytic nanobio-sponge from bio-waste for the remediation of organic dyes from wastewater. TiO2 nanoparticles were functionalized (TIF) with 3-aminopropyltriethoxysilane for stabilizing type-I collagen fibers extracted from cowhide wastes. 13C-nuclear magnetic resonance (13C NMR) and Fourier-transform infrared (FT-IR) spectroscopic analyses confirm the amine functionalization on the surface of TiO2 nanoparticles. Thermal stability of collagen fibers is increased to 84 °C after treatment with TIF, which is 20 °C higher than that of pristine collagen fibers. Further, we converted them into a bio-sponge for photocatalytic degradation of Rhodamine-B (RhB). We demonstrate that the collagen nanobio-sponge loaded with 10% (w/w) TIF nanoparticles can degrade RhB up to 95% under visible light irradiation as well as direct sunlight with a reduction in chemical oxygen demand up to 94%. Photo degradation of RhB was not manifested when the reaction was carried out in dark conditions. The results of this study pave way for the cost-effective and sustainable development of engineered biomass based sponges for real-life environmental remediation applications.

Facile functionalization strategy of PBO fibres for synchronous improving the mechanical and wave-transparent properties of the PBO fibres/cyanate ester laminated composites

A copolymer of P(S-co-BCB-co-GMA) synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization was coated on the surface of poly(p-phenylene-2,6-benzobisoxazole) (PBO) fibres, followed by grafting 2, 2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane (AHHFP) to obtain 6F-PBO@P-GMA fibres. The corresponding 6F-PBO@P-GMA fibres/modified cyanate ester wave-transparent laminated composites are then fabricated. The introduction of copolymer membrane and AHHFP reduces interfacial polarization and enhances the interfacial strength of the wave-transparent laminated composites. The corresponding flexural strength and interlaminar shear strength (ILSS) of the 6F-PBO@P-GMA fibres/modified cyanate ester wave-transparent laminated composites are 701.5 and 46.4 MPa, 19.3% and 12.9% higher than those of laminated composites reinforced by pristine PBO fibres, respectively. Meantime, the obtained wave-transparent laminated composites also possess the lowest complex permittivity, and wide high wave-transparent rate area at X-band (|T|2 > 93.5%, thickness: 0–2.10 mm).

CelluMOFs: Green, Facile, and Flexible Metal‐Organic Frameworks for Versatile Applications

AbstractNatural cellulose fiber‐based materials have been widely used in daily life for a broad application owing to their intrinsic merits such as easy availability, eco‐friendly, good processability, and outstanding physical–mechanical properties. Surface modification of natural fibers with nanostructures is an effective strategy to integrate the textile substrates with many favorable functionalities. Here, a green, facile, and universal method is introduced for the in situ growth of γ‐cyclodextrin (γ‐CD) metal‐organic frameworks (MOFs) in cellulose fiber‐based materials (CelluMOFs). Compared to the pristine fibers, the resulting CelluMOFs have high porosity with up to 50 times larger specific surface area and enhanced loading capacity to functional molecules (essential oils, antibacterial agents, and active drugs) with 23–36 times higher loading content. The CelluMOFs also exhibit high adsorption capability to volatile organic compounds and carbon dioxide. Moreover, the CelluMOFs textiles loaded with a model drug (doxorubicin) show a steady release profile and deep skin permeation capability. These CelluMOFs combine the advantages of both cellulose fibers and CD‐MOFs, which greatly extend their applications in the fragrance industry, antimicrobial, pollutant removal, and biomedical textiles.