Carbon Trends最新文献

{"title":"Distinguishing physical vs. chemical templating mechanisms for inducing graphitization in novolac matrix","authors":"Sandra N Ike ,&nbsp;Randy Vander Wal","doi":"10.1016/j.cartre.2025.100480","DOIUrl":"10.1016/j.cartre.2025.100480","url":null,"abstract":"<div><div>Our previous work investigated the templating ability of graphene oxide-derived additives to induce graphitization of the novolac matrix. The findings led to two working hypotheses: the additives act as templates that promote matrix aromatic alignment to their basal planes during carbonization (referred to here as <em>physical templating</em>) in addition to forming radical edge sites that bond to the decomposing matrix (referred to here as <em>chemical templating</em>). However, results mainly underscored the role of functional groups on the GO additives (<em>chemical templating</em>)<em>.</em> The aim of this current work seeks to differentiate the contributions of the operative mechanisms on graphitization. To study this, 2D materials with minimal oxygen functionalization, graphene and hexagonal boron nitride (hBN) were used as templates to induce graphitization of novolac matrix. First, the optimum weight percent of the 2D materials was determined with the composite graphitic quality measured by X-ray diffraction and Raman spectroscopy. Results revealed that hBN did not induce graphitization of novolac and was attributed to the absence of a sp² framework in hBN, unable to provide the crucial π-π interactions with the aromatic rings of the matrix. In contrast, the graphene additives mirrored one another and showed improved graphitization of the novolac. From these results, it was surmised that both mechanisms are operative; while physical templating offers control over long-range order in the form of crystallite height, chemical templating contributes to carbon reorganization and lateral growth extent.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100480"},"PeriodicalIF":3.1,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of a bimetal Mn/Zn catalyst supported on activated carbon for selective oxidation of ethyl lactate to ethyl pyruvate","authors":"G. Madhanagopal ,&nbsp;K. Premalatha ,&nbsp;P.N. Poovizhi ,&nbsp;V. Sumithra ,&nbsp;S. Mahalingam ,&nbsp;L. Guganathan ,&nbsp;S. Sivakumar ,&nbsp;A. Subramani ,&nbsp;P. Tamizhdurai","doi":"10.1016/j.cartre.2025.100472","DOIUrl":"10.1016/j.cartre.2025.100472","url":null,"abstract":"<div><div>This study investigated the conversion of ethyl lactate to ethyl pyruvate using a bar reactor. A novel heterogeneous catalyst, AC/Mn/Zn (manganese and zinc supported on mesoporous activated carbon), was synthesized using a cost-effective and efficient approach that prioritizes affordability and accessibility. This approach utilizes readily available starting materials and a streamlined process, making the AC/Mn/Zn catalyst commercially attractive for large-scale production. Furthermore, the synthesis minimizes the use of harmful chemicals and generates minimal waste, contributing to an environmentally friendly process that aligns with growing demands for sustainable production methods. Additionally, the straightforward procedures employed allow for simple and replicable catalyst production, ensuring consistent quality control. Following synthesis, various characterization techniques (XRD, TPD, BET, FT-IR, HR-SEM, HR-TEM) confirmed the successful formation of the AC/Mn/Zn catalyst with desired properties. The AC/Mn/Zn catalyst possessed a unique combination of Brønsted and Lewis acid sites, making it ideal for the target reaction. Reaction parameters were optimized, with a temperature of 90 °C, WHSV of 1.0 h⁻¹, atmospheric pressure, and air as the oxidant being employed. The AC/Mn/Zn catalyst exhibited exceptional performance, achieving a remarkable 91 % conversion and 90 % selectivity for ethyl pyruvate, surpassing other investigated catalysts. This success is attributed to the well-designed structure incorporating zinc into the AC-supported manganese. Interestingly, the formation of additional acidic compounds beyond the desired reaction time was observed, suggesting potential side reactions. Further investigation into these side reactions is necessary for complete optimization. The AC/Mn/Zn catalyst offers a compelling combination of high performance, a cost-effective and environmentally friendly synthesis method, and straightforward production procedures. These factors highlight its potential as a promising candidate for industrial ethyl pyruvate production.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100472"},"PeriodicalIF":3.1,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental evidence of flexural phonons in low-temperature heat capacity of carbon nanotubes","authors":"M.S. Barabashko ,&nbsp;A.I. Krivchikov ,&nbsp;A. Jeżowski ,&nbsp;O. Bezkrovnyi ,&nbsp;M.I. Bagatskii ,&nbsp;V.V. Sumarokov ,&nbsp;V. Boiko ,&nbsp;D. Szewczyk","doi":"10.1016/j.cartre.2025.100479","DOIUrl":"10.1016/j.cartre.2025.100479","url":null,"abstract":"<div><div>Low-temperature specific heat of multi-walled carbon nanotubes (MWCNTs) with different grinding was studied. Two sets of modified, milled and oxidized/milled MWCNTs with an average outer diameter of 9.4 nm were used. The experimental results were compared with literature data for different carbon systems: bundles of single-walled carbon nanotubes (SWCNTs), graphite and other MWCNTs. The contributions of phonon spectrum characteristics and intertube interactions were found to be significant factors influencing the heat capacity both in the case of MWCNTs and bundles of SWCNTs. The grinding effect, associated with the reduction of the size of MWCNTs agglomerates, leads to an increased heat capacity. It was demonstrated that the lowest-temperature heat capacity consists of two main contributions: the Debye (<em>C₃T³</em>) and the dispersive (<em>C₅T⁵</em>) one. The obtained negative <em>C₅</em> parameter indicated flexural dispersion for phonons. The magnitudes of Debye and flexural dispersive components depend on structural parameters of nanotubes: such as the diameter of individual nanotubes, the average diameter of the bundle and the size of agglomerates. A monotonic proportional correlation was observed between <em>C₃</em> and |<em>C₅</em>| parameters: |<em>C₅</em>| increases following a power law with an exponent of 1.5 with the increase of <em>C₃</em>. The maximum values of <em>C₃</em> and |<em>C₅</em>| correspond to SWCNT systems, while the minimum values correspond to MWCNTs. These results show that the heat capacity of the nanotube system increases if the interaction forces between neighbouring SWCNTs in the bundle or between the walls inside of MWCNTs decrease. This dependence is confirmed by the grinding effect in the MWCNTs.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100479"},"PeriodicalIF":3.1,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advanced stress imaging in periodically strained, suspended, quasi-2D membranes: Manifestation of Fano resonance and phonon dynamics insights","authors":"Souvik Bhattacharjee ,&nbsp;Biswajit Das ,&nbsp;Anibrata Banerjee ,&nbsp;Kalyan Kumar Chattopadhyay","doi":"10.1016/j.cartre.2025.100477","DOIUrl":"10.1016/j.cartre.2025.100477","url":null,"abstract":"<div><div>Raman imaging is a robust tool for probing nanomaterials, especially 2D systems, regarding phase conformation, composition, defects, internal stress, interfacial interactions, and phonon dynamics. This work presents the first proof-of-concept demonstration of mapping stress distribution, charge-phonon coupling, phonon lifetime, and associated vibrational attributes using a point-by-point, full-spectrum Breit-Wigner-Fano (BWF) analysis over a scalable mesh, cast upon the Raman image. Starting from ultrathin nanostructures, the potency of this technique extends to multi-layered quasi-2D flakes, encompassing vibrational modulations of particular molecular bonds compelled by interlayer van der Waals interactions. The experimental realization involves wrapping chemically processed reduced graphene oxide (rGO) over uniformly spaced, vertically aligned e-beam lithographed pillars. The theoretical foundation is derived from density functional theory (DFT)-based calculations on phonon dispersion, Raman spectra, and associated thermodynamic attributes for layer-specific graphene against varying biaxial tensile stress. Our results unlock the true spectroscopic potential of Raman microscopy in characterizing ‘on-chip’ stressed membranes for emerging applications.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100477"},"PeriodicalIF":3.1,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pseudo bismuth vanadate anchored EDLC-MWCNTs: Supercapacitive electrode to a symmetric solid-state device","authors":"Lakshmana Kumar Bommineedi ,&nbsp;Tushar B. Deshmukh ,&nbsp;Avinash C. Mendhe ,&nbsp;Sachin R. Rondiya ,&nbsp;Babasaheb R. Sankapal","doi":"10.1016/j.cartre.2025.100475","DOIUrl":"10.1016/j.cartre.2025.100475","url":null,"abstract":"<div><div>Sponge analogous nano pebbles of bismuth vanadate (BiVO₄) decorated over multi-walled carbon nanotubes (MWCNTs) synthesized by the successive ionic layer adsorption and reaction (SILAR) method have been explored towards supercapacitor application through enhanced (8 times) surface roughness (S_a) compared to bare MWCNTs; well supported by wettability studies. Electrochemical studies through CV, GCD, EIS, and electrochemical stability performances of the electrode have been performed in 1 M KCl electrolyte where MWCNTs/BiVO₄ showed the highest capacitance (1334.66 F/g) at 3 mV/s with good electrochemical stability of 103 % even after 3500 CV cycles. Interestingly, symmetric solid-state supercapacitor assembled using PVA embedded LiClO₄ gel exhibited a remarkable potential window of 1.83 V with corresponding energy and power densities of 18.38 Wh/kg and 2.13 kW/kg, respectively at 1 mA/cm². The novelty of this work lies in the introduction of a symmetric device using MWCNTs/BiVO₄ electrodes for the first time along with its potential for real-world use by illuminating ‘VNIT ‘acronym consisting of 21 red LEDs.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100475"},"PeriodicalIF":3.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent application of carbon nanotubes in energy storage and conversion devices","authors":"Abdulazeez Tunbosun Lawal","doi":"10.1016/j.cartre.2025.100470","DOIUrl":"10.1016/j.cartre.2025.100470","url":null,"abstract":"<div><div>Worldwide energy demand is increasing at an unprecedented rate due to rapid population growth and industrialization. Hence, renewable and environmentally friendly energy production platforms are more needed than ever as alternatives to fossil fuels, which is a critical societal dilemma. The superior mechanical, electrical, thermal, and electrochemical properties of Carbon nanotubes (CNTs) make them a promising next-generation material for energy conversion and storage applications. CNTs can be synthesized using various methods, such as chemical vapor deposition, laser ablation, and carbon arc discharge. Each of their properties makes them an ideal candidate for various energy conversion and storage devices. Moreover, the performance of CNTs in these energy devices can be improved by surface functionalization, heteroatom doping, structural modification, introductions of defects, promoting transport hydrodynamic processes, and resolving existing degradation issues, such as catalyst poisoning and precipitation. Owing to their highest specific capacitance, enhanced rate capability, and extended cycle life, CNTs have been used in electrochemical energy storage systems, such as supercapacitors, batteries, and supercapattery, as well in energy conversion platforms, such as fuel cells, microbial fuel cells, and solar cells. Since CNTs are emerging as a technologically promising multi-functional nanomaterial due to their unique nanostructure and physical and chemical properties, this review also covers the challenges in realizing the full potential of CNTs for our energy storage and conversion technologies, together with future research directions needed to optimise their structure, properties and functionalisation.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100470"},"PeriodicalIF":3.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pyrolysis conversion of crown-ether-based covalent networks to kagome metal-organic frameworks on Au(111) and Ag(111)","authors":"Yifan Liang ,&nbsp;Jianing Wang ,&nbsp;Ruoting Yin ,&nbsp;Zhengya Wang ,&nbsp;Xiaoqing Wang ,&nbsp;Jie Meng ,&nbsp;Shijing Tan ,&nbsp;Chuanxu Ma ,&nbsp;Qunxiang Li ,&nbsp;Bing Wang","doi":"10.1016/j.cartre.2025.100474","DOIUrl":"10.1016/j.cartre.2025.100474","url":null,"abstract":"<div><div>On-surface chemistry provides an efficient approach to construction of diverse covalent architectures with atomic precision, ranging from one-dimensional chains and ribbons to two-dimensional covalent organic frameworks (COFs) and metal-organic frameworks (MOFs) on coinage metal substrates. This study explores a distinct on-surface pyrolysis approach to MOFs derived from a crown ether molecular precursor on Au(111) and Ag(111) surfaces. Utilizing scanning tunneling microscopy (STM) and non-contact atomic force microscopy (nc-AFM) combined with density functional theory (DFT) calculations, we elucidate the adsorption behavior and the characteristic macrocyclic configuration of the crown ether on Au(111). Subsequent surface-catalyzed Ullmann coupling reactions at an annealing temperature of 470 K lead to highly disordered COFs with the formation of four-membered and six-membered rings through dimerization and trimerization. For the Ag(111) surface, further annealing at 520 K initiates a unique dehydrogenative reaction within the macrocyclic rings, resulting in the loss of six hydrogen atoms. At an elevated temperature of 720 K, breaking of the second C−O bonds yields a long-range ordered triphenylene-based MOF structure. Electronic characterizations reveal the presence of both regular and diatomic kagome lattices, together with distinct quantum-dot states emerging in the pore regions. Additionally, we investigate the selective encapsulation of single guest picenes within the MOF structure, emphasizing the potential of triphenylene-based frameworks for advanced applications in sensing and molecular filtering. Our findings provide a comprehensive insight into the chemical reactivity of crown ethers on metal substrates and demonstrate a novel pathway to designing MOFs through an on-surface pyrolysis process.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100474"},"PeriodicalIF":3.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MXenes for sustainable energy: A comprehensive review on conservation and storage applications","authors":"Mirlan Jussambayev ,&nbsp;Kalizhan Shakenov ,&nbsp;Shynggyskhan Sultakhan ,&nbsp;Ulan Zhantikeyev ,&nbsp;Kydyr Askaruly ,&nbsp;Kainaubek Toshtay ,&nbsp;Seitkhan Azat","doi":"10.1016/j.cartre.2025.100471","DOIUrl":"10.1016/j.cartre.2025.100471","url":null,"abstract":"<div><div>This review explores the potential of MXenes, a novel class of two-dimensional (2D) materials, in advancing energy storage and conservation technologies. MXenes exhibit exceptional physicochemical properties, including a high specific surface area (∼390 m² g⁻¹ for MXene@PPy-800), outstanding electrical conductivity, and robust chemical stability, making them ideal for energy-related applications. In supercapacitors, MXene-based electrodes have demonstrated capacitances exceeding 700 F g⁻¹ at 1 mV s⁻¹, with retention of over 90 % of their initial performance after 10,000 charge/discharge cycles. For lithium-ion batteries, MXenes achieve theoretical capacities ranging from 390 to 600 mAh g⁻¹, depending on the type of MXene material, with experimental reversible capacities often exceeding 400 mAh g⁻¹ at 1C rates and high cycling stability.</div><div>This review synthesizes recent research efforts on the synthesis, structural characterization, and integration of MXenes into energy storage systems. Findings highlight their versatility as electrode materials for supercapacitors, lithium-ion batteries, and fuel cells, as well as their catalytic potential in solar energy conversion. Despite these advancements, challenges remain unresolved. Scalability of MXene synthesis through selective etching methods continues to be a significant technical and economic barrier. Moreover, while MXene-based devices show high initial performance, further work is needed to improve long-term stability in operational and harsh chemical environments.</div><div>By providing a comprehensive overview of MXene-based energy systems, this review identifies critical gaps in understanding their electrochemical mechanisms, particularly ion transport and surface interaction dynamics. Addressing these challenges will be key to optimizing MXene properties and enabling their widespread application in efficient and sustainable energy technologies.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100471"},"PeriodicalIF":3.1,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Co3O4-graphene core-shell QDs-PMMA insulating polymer composites structured nonvolatile bistable memory devices","authors":"Jinseo Park ,&nbsp;Jaeho Shim ,&nbsp;Dong Ick Son","doi":"10.1016/j.cartre.2025.100473","DOIUrl":"10.1016/j.cartre.2025.100473","url":null,"abstract":"<div><div>Nonvolatile hybrid inorganic/organic bistable memory devices fabricated utilizing Co₃O₄-graphene core-shell quantum dots (QDs) embedded in an insulating poly (methyl methacrylate) (PMMA) polymer matrix as active layer which were fabricated using a spin-coating technique. To improve the quantum confinement of Co₃O₄ QD, graphene, which has high electron affinity, was synthesized with Co₃O₄ QD core as a shell to form a core-shell structure that serves as an excellent trap site. Transmission electron microscopy (TEM) images revealed that Co₃O₄-graphene core-shell QDs with a diameter of approximately 5 nm were formed among the PMMA polymer matrix. Current-voltage (I-V) measurements on Al/ Co₃O₄-graphene core-shell QDs embedded in PMMA polymer matrix/indium-tin-oxide (ITO) devices at 300 K showed electrical bistability. The maximum ON/OFF ratio of the current bistability for the OBMDs was as large as 1.8 × 10⁴, the cycling endurance for the devices was above 2.5 × 10³ cycles, and retention times for the devices were larger than 5.8 × 10⁴ s. The carrier transport mechanisms for the devices were described by fitting the experimental I-V data using several models.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100473"},"PeriodicalIF":3.1,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polarized Raman spectroscopy of aligned DNA-wrapped single-wall carbon nanotubes","authors":"Seyedeh Maryam Banihashemian ,&nbsp;Mohsen Mesbah ,&nbsp;Hesam Kamyab ,&nbsp;Mohammad Mahdi Taheri ,&nbsp;Balamuralikrishnan Balasubramanian","doi":"10.1016/j.cartre.2025.100469","DOIUrl":"10.1016/j.cartre.2025.100469","url":null,"abstract":"<div><div>This study introduces a new method to create highly ordered, self-aligned arrays of single-wall carbon nanotubes (SWCNTs) using short DNA composed of 20 thymine bases, known as Poly(dT)20. The SWCNTs were first functionalized through a chemical treatment involving a mixture of sulfuric acid (H₂SO₄) and nitric acid (HNO₃) in a 3:1 ratio, followed by uniform dispersion achieved via a cold ultrasonic technique. Subsequently, the Poly(dT)20 was wrapped around the SWCNTs using a sonothermal process, with variations in time and temperature to enhance alignment. The structural integrity and alignment of the resulting Poly(dT)20 /SWCNT arrays were characterized using scanning electron microscopy (SEM), and profile meter geometry analysis, all of which confirmed the successful alignment of the SWCNTs. Further analysis through ultraviolet-visible spectroscopy (UV–VIS) and Fourier-transform infrared spectroscopy (FTIR) provided evidence of the bonding interactions between the Poly(dT)20 and SWCNTs. Ennhanced Raman spectroscopy of the Poly(dT)20/SWCNT arrays, conducted with polarized light, revealed a significant dependence of the G-band on the polarization angle, yielding a depolarization ratio of 0.211 and linear relationship between I and Cos ² (α). The HRTEM image confirms that the attachment of 20-mer thymine to single-walled carbon nanotubes (SWCNTs) by wrapping around them introduces steric hindrance, which physically separates the nanotubes and prevents aggregation. This finding indicates a well alignment of the Poly(dT)20/SWCNT arrays. The anisotropic characteristics exhibited by the SWCNTs in conjunction with the Poly(dT)20 as a biomaterials suggest promising applications in various fields, including biomedical components, nano-electronic devices, and bio-optics.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100469"},"PeriodicalIF":3.1,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}