keyword
https://read.qxmd.com/read/38503368/polymerization-strategy-for-cellulose-nanocrystals-based-photonic-crystal-films-with-water-resisting-property
#1
JOURNAL ARTICLE
Yue Zhang, De-Qiang Li, Cai-Xia Yang, Zi-Wei Xiong, Maryamgul Tohti, Yu-Qing Zhang, Hong-Jie Chen, Jun Li
Cellulose nanocrystals (CNCs) can form a liquid crystal film with a chiral nematic structure by evaporative-induced self-assembly (EISA). It has attracted much attention as a new class of photonic liquid crystal material because of its intrinsic, unique structural characteristics, and excellent optical properties. However, the CNCs-based photonic crystal films are generally prepared via the physical crosslinking strategy that induces the water sensitivity. Here, we developed CNCs-g-PAM photonic crystal film by combining free radical polymerization and EISA...
March 17, 2024: International Journal of Biological Macromolecules
https://read.qxmd.com/read/38502834/new-penta-coordinated-cadmium-ii-complexes-synthesis-characterization-thermal-antimicrobial-antioxidant-and-cytotoxicity-properties
#2
JOURNAL ARTICLE
Morteza Montazerozohori, M Nejadmirfathi, R Naghiha, E Panahi Kokhdan
In this paper, a new tridentate Schiff base ligand (L) with nitrogen donor atoms and its cadmium(II) complexes with the general formula of CdLX2 (X= Cl-,Br-,I-,SCN-,N3-,NO3-) have been synthesized and characterized by physical and spectral  methods. Also nano-structured cadmium chloride and bromide complexes were synthesized by sonochemical method and then used to prepare nanostructured cadmium oxide confirmed by XRD and SEM techniques. Thermal behavior of the compounds was studied in the temperature range of 25 to 900 °C under N2 atmosphere at a heating rate of 20 °C/ min...
March 19, 2024: Chemistry & Biodiversity
https://read.qxmd.com/read/38488218/versatile-mechanically-tunable-hydrogels-for-therapeutic-delivery-applications
#3
JOURNAL ARTICLE
Qiyao Sun, Siyuan Tao, Giovanni Bovone, Garam Han, Dhananjay Deshmukh, Mark W Tibbitt, Qun Ren, Pascal Bertsch, Gilberto Siqueira, Peter Fischer
Hydrogels provide a versatile platform for biomedical material fabrication that can be structurally and mechanically fine-tuned to various tissues and applications. Applications of hydrogels in biomedicine range from highly dynamic injectable hydrogels that can flow through syringe needles and maintain or recover their structure after extrusion to solid-like wound-healing patches that need to be stretchable while providing a selective physical barrier. In this study, a toolbox is designed using thermo-responsive poly(N-isopropylacrylamide) (PNIPAM) polymeric matrices and nanocelluloses as reinforcing agent to obtain biocompatible hydrogels with altering mechanical properties, from a liquid injectable to a solid-like elastic hydrogel...
March 15, 2024: Advanced Healthcare Materials
https://read.qxmd.com/read/38455581/revisiting-thermo-physical-property-models-of-al-2-o-3-water-nanofluid-for-natural-convective-flow
#4
JOURNAL ARTICLE
Tahmidul Haque Ruvo, Md Shahneoug Shuvo, Sumon Saha
One of the comprehensive ways of heat transport performance augmentation of thermo-fluid systems is to use nanofluid over base fluid. This study mainly scrutinizes several existing models of thermal conduction coefficient and absolute viscosity of Al2 O3 -water nanofluid with the experimental data. A benchmark problem of natural convective flow is selected to test the performance of the available nanofluid models. The Rayleigh number varies between 103 and 109 , while the solid-volume proportion ( φ ) changes from 0 to 4%...
March 15, 2024: Heliyon
https://read.qxmd.com/read/38434283/effect-of-chemical-treatment-on-physio-mechanical-properties-of-lignocellulose-natural-fiber-extracted-from-the-bark-of-careya-arborea-tree
#5
JOURNAL ARTICLE
Jeevan Rao H, S Singh, P Janaki Ramulu, Thiago F Santos, Caroliny M Santos, Sanjay M R, Indran Suyambulingam, Suchart Siengchin
For the first time, the current work has carried out a chemical treatment of a novel ligno-cellulose fiber that is extracted from the bark of an unexplored plant of Careya arborea. Careya arborea (CA), a flowering tree known for its green berries, thrives in the Indian subcontinent and Afghanistan. This research was focused on extracting fibers from the bark of the Cary tree for the first time to corroborate the influence of chemical treatment on its different characteristics. These CA fibers have a high proportion of cellulose, consisting of 71...
March 15, 2024: Heliyon
https://read.qxmd.com/read/38404804/investigating-the-thermo-physical-properties-of-a-new-kind-of-graphitic-carbon-nitride-included-ternary-hybrid-nanofluids-and-the-property-correlations
#6
JOURNAL ARTICLE
Velu Nandakumar, Chandravadhana Arumugam, Padmanaban Radhakrishnan, Vellaisamy A L Roy, Gopalan Anantha-Iyengar, Dong-Eun Lee, Venkatramanan Kannan
In this work, a simple and facile approach was employed for the preparation of the ternary hybrids comprising of titanium dioxide, zinc oxide and graphitic nitride (designated as TZG-TH) with varying compositions of the components. In the context of complex and multi-stages involved for preparation of many of the THs in the literature, the present work uses the much simpler mythology for the preparation of TH. Nanofluids (NF) were formulated in ethylene glycol: water base fluid using TZG TH as the solid particles...
February 29, 2024: Heliyon
https://read.qxmd.com/read/38404801/durability-thermo-physical-characteristics-and-mechanical-strength-prediction-of-green-portland-cement-matrix-incorporating-recycled-soda-lime-glass-and-lead-glass
#7
JOURNAL ARTICLE
Tchedele Langollo Yannick, Essomba Essomba Juste Constant, Emini Pierre Boris Gael, Boroh Andre William, Mambou Ngueyep Luc Leroy, Tchamba Arlin Bruno, Ngounouno Ismaïla
The current study is concerned with acid and calcination durability, thermal and thermo-physical properties, and mechanical strength prediction of mortars containing soda-lime glass (PVS) and lead glass (PVP). It demonstrates that up to 30% of PVP (PVP30) and PVS (PVS30) enhancements lessen the consequences of acid attack. In both cases, 20% additions show the best acid resistance at 2 days, but mortars with 10% addition resist better at 28 days. Furthermore, sulfuric acid damages the formed mortars more aggressively than hydrochloric acid...
February 29, 2024: Heliyon
https://read.qxmd.com/read/38399878/enhancing-the-thermal-performance-of-shape-memory-polymers-designing-a-minichannel-structure
#8
JOURNAL ARTICLE
Saed Beshkoofe, Majid Baniassadi, Alireza Mahdavi Nejad, Azadeh Sheidaei, Mostafa Baghani
This research proposes a numerical approach to improve the thermal performance of shape memory polymers (SMPs) while their mechanical properties remain intact. Sixteen different 3D minichannel structures were numerically designed to investigate the impact of embedded water flow in microchannel networks on the thermal response and shape recovery of SMPs. This work employs two approaches, each with different physics: approach A focuses on solid mechanics analysis and, accordingly, thermal analysis in solids without considering the fluid...
February 11, 2024: Polymers
https://read.qxmd.com/read/38389496/thermoresponsive-oil-continuous-gels-based-on-double-interpenetrating-colloidal-particle-networks
#9
JOURNAL ARTICLE
Braulio A Macias-Rodriguez, Roland Gouzy, Corentin Coulais, Krassimir P Velikov
Gels composed of multicomponent building blocks offer promising opportunities for the development of novel soft materials with unique and useful structures. While interpenetrating polymer networks have been extensively studied and applied in the creation of these gels, equivalent strategies utilizing colloidal particles have received limited scientific and technological attention. This study presents a novel class of thermo-responsive apolar double gels from interpenetrating networks of attractive colloidal silica and lipid particles...
February 23, 2024: Soft Matter
https://read.qxmd.com/read/38308872/effect-of-tumor-heterogeneity-on-enhancing-drug-delivery-to-vascularized-tumors-using-thermo-sensitive-liposomes-triggered-by-hyperthermia-a-multi-scale-and-multi-physics-computational-model
#10
JOURNAL ARTICLE
Masoud H H Tehrani, Farshad Moradi Kashkooli, M Soltani
In this study, a novel multi-scale and multi-physics image-based computational model is introduced to assess the delivery of doxorubicin (Dox) loaded temperature-sensitive liposomes (TSLs) in the presence of hyperthermia. Unlike previous methodologies, this approach incorporates capillary network geometry extracted from images, resulting in a more realistic physiological tumor model. This model holds significant promise in advancing personalized medicine by integrating patient-specific tumor properties. The finite element method is employed to solve the equations governing intravascular and interstitial fluid flows, as well as the transport of therapeutic agents within the tissue...
January 29, 2024: Computers in Biology and Medicine
https://read.qxmd.com/read/38299121/elucidating-the-role-of-lignin-type-and-functionality-in-the-development-of-high-performance-biobased-phenolic-thermoset-resins
#11
JOURNAL ARTICLE
Emanuela Bellinetto, Nicholas Fumagalli, Matilde Astorri, Stefano Turri, Gianmarco Griffini
In this work, a series of biobased phenolic resins were developed starting from kraft and soda lignin, suitably functionalized through esterification by means of succinic anhydride. As a result of an extensive optimization study of the functionalization and curing reactions, clear correlations between lignin type and chemical-physical characteristics and the properties of the resulting phenolic resin systems were described. In particular, the esterification reaction through succinic anhydride was found to play a key role in enhancing the chemical reactivity and in facilitating the successful incorporation of lignin into the resin formulations...
January 26, 2024: ACS applied polymer materials
https://read.qxmd.com/read/38297742/effects-of-cavity-nonlinearities-and-linear-losses-on-silicon-microring-based-reservoir-computing
#12
JOURNAL ARTICLE
Bernard J Giron Castro, Christophe Peucheret, Darko Zibar, Francesco Da Ros
Microring resonators (MRRs) are promising devices for time-delay photonic reservoir computing, but the impact of the different physical effects taking place in the MRRs on the reservoir computing performance is yet to be fully understood. We numerically analyze the impact of linear losses as well as thermo-optic and free-carrier effects relaxation times on the prediction error of the time-series task NARMA-10. We demonstrate the existence of three regions, defined by the input power and the frequency detuning between the optical source and the microring resonance, that reveal the cavity transition from linear to nonlinear regimes...
January 15, 2024: Optics Express
https://read.qxmd.com/read/38295752/coupled-thermo-mechanical-interaction-on-a-multi-layered-skin-tissue-with-temperature-dependent-physical-properties-irradiated-by-a-pulse-laser
#13
JOURNAL ARTICLE
Yingze Wang, Zhe Wang, Wenbo Zheng, Xiaoyu Lu
A detailed understanding of the coupled thermo-mechanical interaction on the biological tissue irradiated by a pulse laser is essential for the existed therapeutic methods constructed on the photo-thermal effect, which will contribute to the design, characterization and optimization of strategies for delivering better treatment. The aim of present work is to explore the coupled thermo-mechanical behavior of a multi-layered skin tissue with temperature-dependent physical properties under the pulsed laser irradiation...
January 26, 2024: Journal of Thermal Biology
https://read.qxmd.com/read/38289404/regulation-of-the-p53-tumor-suppressor-gene-and-the-mcl-2-oncogene-expression-by-an-active-herbal-component-delivered-through-a-smart-thermo-ph-sensitive-plga-carrier-to-improve-osteosarcoma-treatment
#14
JOURNAL ARTICLE
Parinaz Akbari, Mohammad Taebpour, Milad Akhlaghi, Shaimaa Hamid Hasan, Shayesteh Shahriyari, Mahdieh Parsaeian, Bibi Fatemeh Haghirosadat, Abbas Rahdar, Sadanand Pandey
Osteosarcoma (OS), a lethal malignancy, has witnessed an escalating incidence rate. Contemporary therapeutic strategies for this cancer have proven to be inadequate, primarily due to their extensive side effects and the lack of specificity in targeting the molecular pathways implicated in this disease. Consequently, this project is aimed to manufacture and characterize Poly (Lactic-co-glycolic acid) embodying curcumin, a phytocompound devoid of adverse effects which not only exerts an anti-neoplastic influence but also significantly modulates the genetic pathways associated with this malignancy...
January 30, 2024: Medical Oncology
https://read.qxmd.com/read/38257025/systematic-investigation-of-the-degradation-properties-of-nitrile-butadiene-rubber-polyamide-elastomer-single-walled-carbon-nanotube-composites-in-thermo-oxidative-and-hot-oil-environments
#15
JOURNAL ARTICLE
Guangyong Liu, Huiyu Wang, Tianli Ren, Yuwei Chen, Susu Liu
The physical blending method was used in order to prepare nitrile-butadiene rubber/polyamide elastomer/single-walled carbon nanotube (NBR/PAE/SWCNT) composites with better thermal-oxidative aging resistance. The interactions between SWCNTs and NBR/PAE were characterized using the Moving Die Rheometer 2000 (MDR 2000), rheological behavior tests, the equilibrium swelling method, and mechanical property tests. The 100% constant tensile stress and hardness of NBR/PAE/SWCNT composites increased from 2.59 MPa to 4...
January 12, 2024: Polymers
https://read.qxmd.com/read/38247743/uv-crosslinked-poly-n-isopropylacrylamide-interpenetrated-into-chitosan-structure-with-enhancement-of-mechanical-properties-implemented-as-anti-fouling-materials
#16
JOURNAL ARTICLE
Isala Dueramae, Fumihiko Tanaka, Naoki Shinyashiki, Shin Yagihara, Rio Kita
High-performance properties of interpenetration polymer network (IPN) hydrogels, based on physically crosslinked chitosan (CS) and chemically crosslinked poly( N -isopropylacrylamide) (PNiPAM), were successfully developed. The IPN of CS/PNiPAM is proposed to overcome the limited mechanical properties of the single CS network. In this study, the viscoelastic behaviors of prepared materials in both solution and gel states were extensively examined, considering the UV exposure time and crosslinker concentration as key factors...
December 25, 2023: Gels
https://read.qxmd.com/read/38246301/potential-of-capparis-decidua-plant-and-eggshell-composite-adsorbent-for-effective-removal-of-anionic-dyes-from-aqueous-medium
#17
JOURNAL ARTICLE
Ghulam Mujtaba, Abdul Hai, Mansoor Ul Hassan Shah, Asad Ullah, Yasir Anwar, Furqan Shah, Muhammad Daud, Afzal Hussain, Faheem Ahmed, Fawzi Banat
The presence of hazardous dyes in wastewater poses significant threats to both ecosystems and the natural environment. Conventional methods for treating dye-contaminated water have several limitations, including high costs and complex operational processes. This study investigated a sustainable bio-sorbent composite derived from the Capparis decidua plant and eggshells, and evaluated its effectiveness in removing anionic dyes namely tartrazine (E-102), methyl orange (MO), and their mixed system. The research examines the influence of initial concentration, contact time, pH, adsorbent dosage, and temperature on the adsorption properties of anionic dyes...
January 19, 2024: Environmental Research
https://read.qxmd.com/read/38237817/surface-modification-of-polydimethylsiloxane-by-the-cataractous-eye-protein-isolate
#18
JOURNAL ARTICLE
Sultana Parveen, Mainak Basu, Prasun Chowdhury, Trina Dhara, Sunando DasGupta, Soumen Das, Swagata Dasgupta
Polydimethylsiloxane (PDMS), even though widely used in microfluidic applications, its hydrophobic nature restricts its utility in some cases. To address this, PDMS may be used in conjunction with a hydrophilic material. Herein, the PDMS surface is modified by plasma treatment followed by cross-linking with the cataractous eye protein isolate (CEPI). CEPI-PDMS composites are prepared at three pH and the effects of CEPI on the chemical, physical, and electrical properties of PDMS are extensively investigated...
January 16, 2024: International Journal of Biological Macromolecules
https://read.qxmd.com/read/38201724/sustainable-particleboards-based-on-brewer-s-spent-grains
#19
JOURNAL ARTICLE
Lucia Rossi, Lucia Wechsler, Mercedes A Peltzer, Emiliano M Ciannamea, Roxana A Ruseckaite, Pablo M Stefani
Brewer's spent grain (BSG) is the main solid waste generated in beer production and primarily consists of barley malt husks. Based on the active promotion of circular economy practices aimed at recycling food industry by-products, this study assessed for the first time the production of particleboards based on BSG as the sole source of lignocellulosic material and natural adhesive without the use of additives or other substrates. In order to achieve particleboards from entirely sustainable sources, BSG particles have to self-bind by thermo-compression with water...
December 23, 2023: Polymers
https://read.qxmd.com/read/38158531/advances-in-phase-change-materials-and-nanomaterials-for-applications-in-thermal-energy-storage
#20
REVIEW
Rahul Kumar, Amit Kumar Thakur, Lovi Raj Gupta, Anita Gehlot, Vineet Singh Sikarwar
Phase-changing materials are nowadays getting global attention on account of their ability to store excess energy. Solar thermal energy can be stored in phase changing material (PCM) in the forms of latent and sensible heat. The stored energy can be suitably utilized for other applications such as space heating and cooling, water heating, and further industrial processing where low-temperature heat energy is required. The presented work attempts to evaluate past, present, and future trends in the development of energy storage materials and their encapsulation techniques for efficient utilization of the available energy...
December 29, 2023: Environmental Science and Pollution Research International
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