Semi-automatic image analysis of particle morphology of cellulose nanocrystals

Yucel, Sezen; Moon, Robert J.; Johnston, Linda J.; Yucel, Berkay; Kalidindi, Surya R.

doi:10.1007/s10570-020-03668-8

Cited by 17 publications

(15 citation statements)

References 40 publications

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“…The app’s specifics are described in ref . In other applications, like those mentioned in ref , other software has been investigated.…”

Section: Fundamentalsmentioning

confidence: 99%

Cellulose Nanocrystals Examined by Atomic Force Microscopy: Applications and Fundamentals

Moud

2022

ACS Food Sci. Technol.

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Cellulose nanocrystals (CNCs) are nanoscale particles with huge surface areas, excellent mechanical properties, and the ability to develop tunable surface chemistry, thus allowing them to be mixed into a wide range of matrices. Using atomic force microscopy (AFM), we highlight recent developments in the microstructural characterization of CNC particles in various shapes at both particle and organization scales. Considering new uses for CNC suspensions and gels and given the considerable potential of CNC-based products in medicinal, energy, cosmetics, filtration, and food applications, leveraging existing state-of-the-art characterization technologies such as AFM to improve CNC-produced properties cannot be ruled out. AFM may be used as a probe to disclose more intimate information about CNCs and can show modulus, size, and morphology in comparison to other characterization tools. AFM based on the literature review here was found to be a good assessment tool to verify the state of interaction, the adhesion strength of certain particles or chemicals, and the mechanical properties of CNCs. Thus, in tandem with other technologically advanced characterization tools, knowledge provided here for proper assessment of CNCs is necessary. Based on the AFM application currently widespread on CNCs, it appears that more research efforts are needed to provide additional cues regarding CNC individual states or the organized state (isotropic or liquid crystalline) for future sustainable, ecofriendly product designs based on CNCs.

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“…The app’s specifics are described in ref . In other applications, like those mentioned in ref , other software has been investigated.…”

Section: Fundamentalsmentioning

confidence: 99%

Cellulose Nanocrystals Examined by Atomic Force Microscopy: Applications and Fundamentals

Moud

2022

ACS Food Sci. Technol.

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“…High-resolution imaging of NC materials and the corresponding analysis to reveal their geometric dimensions can suffer from inhomogeneous distribution of particles due to the tendency of aggregation, and sometimes from subjective/biased analytical procedures. This problem has been seen in AFM, TEM, and SEM studies, where the results from different research groups can be quite different. , Yucel et al demonstrated a semiautomated image analysis protocol, termed Standardized Morphology Analysis for Research and Technology (SMART) that can improve the reliability and grouping of NC (i.e., CNC) from AFM and TEM imaging. In their demonstration, the raw AFM or TEM image of CNC is first processed in grayscale (Figure a), the different types of particles can then be segmented and grouped using different color codes (Figure b) with the assistance of the built-in MATLAB function “ regionprops”.…”

Section: Nc Properties and Its Characterization Prioritizing Critical...mentioning

confidence: 99%

Section: Nc Properties and Its Characterization Prioritizing Critical...mentioning

confidence: 99%

Nanocellulose for Sustainable Water Purification

et al. 2022

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Nanocelluloses (NC) are nature-based sustainable biomaterials, which not only possess cellulosic properties but also have the important hallmarks of nanomaterials, such as large surface area, versatile reactive sites or functionalities, and scaffolding stability to host inorganic nanoparticles. This class of nanomaterials offers new opportunities for a broad spectrum of applications for clean water production that were once thought impractical. This Review covers substantial discussions based on evaluative judgments of the recent literature and technical advancements in the fields of coagulation/flocculation, adsorption, photocatalysis, and membrane filtration for water decontamination through proper understanding of fundamental knowledge of NC, such as purity, crystallinity, surface chemistry and charge, suspension rheology, morphology, mechanical properties, and film stability. To supplement these, discussions on low-cost and scalable NC extraction, new characterizations including solution small-angle X-ray scattering evaluation, and structure− property relationships of NC are also reviewed. Identifying knowledge gaps and drawing perspectives could generate guidance to overcome uncertainties associated with the adaptation of NC-enabled water purification technologies. Furthermore, the topics of simultaneous removal of multipollutants disposal and proper handling of post/spent NC are discussed. We believe NC-enabled remediation nanomaterials can be integrated into a broad range of water treatments, greatly improving the cost-effectiveness and sustainability of water purification.

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“…It is often a problem as carbohydrate NPs are generally strongly anisometric. To obtain height information, atomic force microscopy (AFM) has been used in conjunction with EM imaging ( Elazzouzi-Hafraoui et al, 2008 ; Yucel et al, 2021 ). This joint approach is practical to estimate the global size distribution.…”

Section: Introductionmentioning

confidence: 99%

“…This is partly due to the small mesh size of TEM grids that limits the field of view. To obtain non-biased size distributions of polydisperse carbohydrate NPs, one needs to have imaging capability over lengthscales from nanometer to tens of micrometers ( Kelly et al, 2021 ), with the help of automated image analysis procedures for statistically significant populations ( Campano et al, 2021 ; Yucel et al, 2021 ). To assess the size distribution of NPs larger than a few micrometers, scanning electron microscopy (SEM) is more adapted, thanks to its wider view field compared to that of TEM and AFM.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Electron Microscopy of Carbohydrate Nanoparticles

Ogawa

Putaux

2022

Front. Chem.

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Carbohydrate nanoparticles, both naturally derived and synthetic ones, have attracted scientific and industrial attention as high-performance renewable building blocks of functional materials. Electron microscopy (EM) has played a central role in investigations of their morphology and molecular structure, although the intrinsic radiation sensitivity of carbohydrate crystals has often hindered the in-depth characterization with EM techniques. This contribution reviews the recent advances in the electron microscopy of the carbohydrate nanoparticles. In particular, we highlight the recent efforts made to understand the three-dimensional shape and structural heterogeneity of nanoparticles using low-dose electron tomography and electron diffraction techniques coupled with cryogenic transmission electron microscopy.

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Semi-automatic image analysis of particle morphology of cellulose nanocrystals

Cited by 17 publications

References 40 publications

Cellulose Nanocrystals Examined by Atomic Force Microscopy: Applications and Fundamentals

Cellulose Nanocrystals Examined by Atomic Force Microscopy: Applications and Fundamentals

Nanocellulose for Sustainable Water Purification

Recent Advances in Electron Microscopy of Carbohydrate Nanoparticles

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