Proton, thermal and mechanical relaxation characteristics of a complex biomaterial (de-fatted date-pits) as a function of temperature

Al-Khalili, Maha; Al-Habsi, Nasser; Al-Khusaibi, Mohamed; Rahman, Mohammad Shafiur

doi:10.1007/s10973-023-11943-6

Cited by 3 publications

(2 citation statements)

References 77 publications

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“…Another alternative was employed by Guigo et al, who used solid pellets of isolated lignin powders for conducting rheometric measurements in the oscillating mode [57]. Very recently, Al-Khali et al applied the same modality for monitoring the mechanical relaxation of de-fatted date-pits on powder tablets [58]. Despite the fact that both wood and woody biomass wastes are lignocellulosic biopolymers, the contents of hydrophilic components (cellulose, hemicellulose) are higher in the wood, which make it much more hygroscopic [23].…”

Section: Introductionmentioning

confidence: 99%

Thermal and Viscoelastic Responses of Selected Lignocellulosic Wastes: Similarities and Differences

Ionita¹,

Cristea²,

Cosmulescu³

et al. 2023

Polymers

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Woody lignocellulosic biomasses comprise the non-edible parts of fruit trees. In recent years, the exploitation of this biomass has been widening in order to mitigate environmental issues. At the same time, this waste could be transformed into a value-added product (active carbon by pyrolysis, isolation of nanocellulose, oils or proteins). For either valorization path, a complete thermo-mechanical characterization is required. A detailed thermo-mechanical study (TGA, DSC, DMA) was performed on two types of lignocellulosic wastes, with and without kernels: on one side, the walnut shells (WS) and the pistachio shells (PsS) and, in the second category, the apricot seeds (AS), the date seeds (DS), and the plum seeds (PS). The results of the sample-controlled thermal analyses (HiRes TGA) evidenced a better resolution of the degradation steps of WS. Kinetic studies conducted also by conventional TGA (Flynn–Wall–Ozawa) and modulated TGA (MTGA) allowed us to make comparative reasonings concerning the degradation of the investigated biomasses. The DMA results revealed the effect of water traces and oil kernels on relaxation and supported the atypical DSC endotherm emphasized in the freezing temperature domain.

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Section: Introductionmentioning

confidence: 99%

Thermal and Viscoelastic Responses of Selected Lignocellulosic Wastes: Similarities and Differences

Ionita¹,

Cristea²,

Cosmulescu³

et al. 2023

Polymers

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“…To be applied or installed, both in the medical and non-medical fields, the biomaterial must possess chemical and thermal stability. Techniques such as TGA and differential scanning calorimetry (DSC) can provide information on thermal stability [39].…”

mentioning

confidence: 99%

Hybrid Organic–Inorganic Materials Prepared by Sol–Gel and Sol–Gel-Coating Method for Biomedical Use: Study and Synthetic Review of Synthesis and Properties

Barrino

2024

Coatings

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The need to improve the expectancy and quality of life of subjects affected by disabling pathologies that require the replacement or regeneration of tissues or parts of the body has fueled the development of innovative, better-performing materials that are capable of integrating into and being tolerated by body tissues. Materials with these characteristics, i.e., bio-functionality, bio-safety, and biocompatibility, are defined as biomaterials. One of the many methods for producing such materials is the sol–gel technique. This process is mainly used for the preparation of ceramic oxides at low temperatures, through hydrolysis and polycondensation reactions of organometallic compounds within a hydroalcoholic solution. This study is based on a specific type of biomaterial: organic–inorganic hybrids. The aim of this study is to provide an overview of the advantages and disadvantages of the sol–gel technique, as well as describe the preparation and chemical and biological characterization, uses, and future prospects of these biomaterials. In particular, the use of plant drugs as organic components of the hybrid material is the innovation of this manuscript. The biological properties of plant extracts are numerous, and for this reason, they deserve great attention from the scientific community.

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Multiscale dynamics and molecular mobility in cellulose-rich materials

Coelho,

Deleris,

Champion

et al. 2024

Carbohydrate Polymers

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Proton, thermal and mechanical relaxation characteristics of a complex biomaterial (de-fatted date-pits) as a function of temperature

Cited by 3 publications

References 77 publications

Thermal and Viscoelastic Responses of Selected Lignocellulosic Wastes: Similarities and Differences

Thermal and Viscoelastic Responses of Selected Lignocellulosic Wastes: Similarities and Differences

Hybrid Organic–Inorganic Materials Prepared by Sol–Gel and Sol–Gel-Coating Method for Biomedical Use: Study and Synthetic Review of Synthesis and Properties

Multiscale dynamics and molecular mobility in cellulose-rich materials

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