Article
Polymer Science
Alaa Attar, Rima D. Alharthy, Mohammed Zwawi, Mohammed Algarni, Faisal Albatati, Mohamed Bassyouni, Mohamed Helmy Abdel-Aziz, Mohamed Shafick Zoromba, Ahmed F. Al-Hossainy
Summary: Polypyrrole/multiwalled carbon nanotube composites were produced using an in situ oxidative polymerization method, and their morphology, structural, and electrical characteristics were examined. The composites showed promising results for potential applications in polymer solar cells.
Article
Environmental Sciences
Miaomiao Tan, Longfei Liu, Deyun Li, Chengliang Li
Summary: The transport behavior of multi-walled carbon nanotubes with different surface modifications in water-saturated sand columns was influenced by pH and ionic strength, with COOH-MWCNTs exhibiting the strongest mobility.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Environmental
Yang Li, Cai-Yan Gao, Xin-Heng Fan, Lian-Ming Yang
Summary: This study developed a high-performance polypyrrole (PPy)/single-walled carbon nanotube (SWCNT) composite material through in-situ electrochemical polymerization of pyrrole on a pre-fabricated SWCNT membrane electrode. By adopting pulse galvanostatic electropolymerization (PGEP) technology for interface engineering, the TE performance of the composite film was significantly improved, achieving excellent power factor and figure of merit.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Analytical
Lili Yang, Jiasheng Wang, Haitao Lu, Ni Hui
Summary: A dual-sensing platform based on PPY/MWCNTs/PB nanowire arrays has been developed, showing excellent electrocatalysis performance for H2O2 reduction and high sensitivity for microRNA biosensing applications.
Article
Chemistry, Multidisciplinary
Francesca Scuratti, Jorge Mario Salazar-Rios, Alessandro Luzio, Sebastian Kowalski, Sybille Allard, Stefan Jung, Ullrich Scherf, Maria Antonietta Loi, Mario Caironi
Summary: When a higher proportion of nanotubes with smaller bandgaps are efficiently connected, a sparse network allows for efficient charge percolation for band-like transport, achieving a charge mobility as high as 20.2 cm(2) V-1 s(-1). However, if charges are forced to populate higher bandgap nanotubes and/or the wrapping polymer by a less efficient morphology, thermally activated transport occurs and mobility decreases.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Mukulika Jana Chatterjee, Prasenjit Chakraborty, Dipali Banerjee
Summary: A polypyrrole-single-walled carbon nanotube (PPY-SWCNT) composite has been prepared using chemical oxidative in situ polymerization with 5 wt.% of single-walled carbon nanotubes (SWCNT) to compare the thermoelectric properties of polypyrrole (PPY) and the composite. The formation mechanism of the composite has been discussed based on the carrier transport mechanism, and transport parameters have been calculated and correlated with the structure formation. The dependence of carrier concentration and mobility of charge carrier on temperature has been obtained based on the charge carrier transport in PPY and PPY-SWCNT composite.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Energy & Fuels
Rafael Vicentini, Willian G. Nunes, Lenon H. da Costa, Leonardo M. Da Silva, Bruno Freitas, Aline M. Pascon, Otavio Vilas-Boas, Hudson Zanin
Summary: A novel multi-walled carbon nanotubes and activated carbon composite material was reported as an electrode for electrochemical capacitors, showing low equivalent series resistance and operational stability in aqueous electrolytes. The simple, fast, and low-cost approach resulted in devices with high voltage and specific capacitance, demonstrating good cyclability and potential for environmentally friendly electrolytes.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Thiago A. Moura, Wellington Q. Neves, Rafael S. Alencar, Y. A. Kim, M. Endo, Thiago L. Vasconcelos, Deyse G. Costa, Graziani Candiotto, Rodrigo B. Capaz, Paulo T. Araujo, Antonio G. Souza Filho, Alexandre R. Paschoal
Summary: The unique electronic and vibrational properties of linear carbon chains (LCCs) have attracted attention recently. Raman spectroscopy has been widely used to identify LCC and study its properties. This study investigates the optical resonance window of LCCs encapsulated by multi-walled carbon nanotubes (MWCNTs) and a Raman signature assigned to the LCC's longitudinal acoustic phonon mode. First-principles calculations support the conclusions.
Article
Chemistry, Physical
Qianyu Ji, Bowen Wang, Yajuan Zheng, Xueping Yan, Fanguang Zeng, Bingheng Lu
Summary: The study introduces bulk graphene/carbon nanotubes hybrid materials for field emission applications, showcasing excellent stability and high efficiency. These bulk emitters are suitable for high-power cold cathode applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Biotechnology & Applied Microbiology
Won-Seok Lee, Ji-Hye Kang, Jung-Hwan Lee, Yoo Sung Kim, Jongmin Joseph Kim, Han-Sem Kim, Hae-Won Kim, Ueon Sang Shin, Bo-Eun Yoon
Summary: The study utilized carbon nanotube platforms to enhance astrocyte functions, such as improving cell adhesion, proliferation, and gliotransmission, by increasing resting Ca2+ levels.
JOURNAL OF NANOBIOTECHNOLOGY
(2022)
Article
Materials Science, Ceramics
R. Fernandez-Loyola, M. Muthuvel, A. B. Hernandez-Maldonado, J. A. Menchaca-Rivera, J. F. Perez-Robles, O. Solorza-Feria, G. G. Botte
Summary: A new nanocomposite material involving multi-walled carbon nanotubes (MWCNTs) was synthesized using the traditional chemical vapor deposition (CVD) method. The morphological and structural characterization, as well as the electrochemical evaluation, indicate the potential application of these nanocomposites as efficient electrocatalysts.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Analytical
Jiaxin Zhou, Yi Xia, Zhirong Zou, Qing Yang, Xue Jiang, Xiaoli Xiong
Summary: This study presents a composite carbon nanomaterial electrode of CDs/MWCNTs, which is synthesized using liquid dielectric barrier discharge (DBD) microplasma. The electrode shows enhanced electron transfer and electrocatalytic activity for sensitive detection of dopamine (DA). The sensor exhibits good sensing performance and successfully detects DA levels in human serum samples with satisfactory selectivity and recovery rate.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Physical
Santanu Pal, Tamal Kumar Dalui, Durga Basak
Summary: Understanding the carrier transport mechanism of transparent conducting oxides is crucial for its application in optoelectronic devices. A study on ZnO doped with higher valence dopants reveals the crossover among band and various hopping mechanisms in the temperature range of 300-10 K. The conductivity and conduction mechanisms vary with temperature and vacuum conditions, with the lowest measured temperature showing a modified Efros-Shklovskii (ES) VRH type of conduction mechanism. The study also demonstrates the impact of surface traps on the charge transport process.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Renzo A. Fenati, Peter C. Sherrell, Dmitriy A. Khodakov, Joseph G. Shapter, Amanda Ellis
Summary: This study presents a simple dual-well device that enables complementary redox reactions between spatially isolated solutions, demonstrating the efficiency of multi-walled carbon nanotubes in transporting charge carriers and highlighting their potential for versatile sensors.
MATERIALS HORIZONS
(2021)
Article
Chemistry, Physical
Yuehong Yin, Guohua Cao, Lige Fu, Zhifei Wei, Haofeng Li, Pingping Wu, Ming Li, Haitao Zong, Lingling Yan, Baoqing Zhang
Summary: In this study, multi-walled carbon nanotubes (MWCNTs) with strong visible fluorescence were synthesized via oxidation and amination. The oxygen-containing surface functional groups contributing to fluorescence emission were found, and novel carbon nanoclusters with a diameter of 20-30 nm were formed at the tips of MWCNTs. The fluorescent MWCNTs exhibited distinct excitation-wavelength dependence, pH response, and temperature sensitivity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Biotechnology & Applied Microbiology
Stefan Simic, Sanja Jeremic, Lidija Djokic, Natasa Bozic, Zoran Vujcic, Nikola Loncar, Ramsankar Senthamaraikannan, Ramesh Babu, Igor M. Opsenica, Jasmina Nikodinovic-Runic
ENZYME AND MICROBIAL TECHNOLOGY
(2020)
Article
Food Science & Technology
Le Wen, Zhihang Zhang, Ming Zhao, Ramsankar Senthamaraikannan, Ramesh Babu Padamati, Da-Wen Sun, Brijesh K. Tiwari
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2020)
Article
Biochemistry & Molecular Biology
Saranya Rameshkumar, Rory Henderson, Ramesh Babu Padamati
Review
Chemistry, Multidisciplinary
Gaozhong Wang, Zhongzheng Wang, Niall McEvoy, Ping Fan, Werner J. Blau
Summary: This article reviews the recent progress in sensing, photonic, and (opto-) electronic applications of PtSe2, a 2D layered material that is likely to be used in industries due to its high air-stability and compatible fabrication methods with semiconductor technology. It compares the advantages and disadvantages of various synthesis methods for PtSe2, discusses its outstanding properties and industrial advantages, reviews the research on the broadband nonlinear photonic properties of PtSe2, and summarizes its use as a saturable absorber in ultrafast lasers. Additionally, it outlines the advances achieved in PtSe2-based field-effect transistors, photodetectors, and sensors.
ADVANCED MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Parameswaran Shaiju, Benamor-Bois Dorian, Ramsankar Senthamaraikannan, Ramesh Babu Padamati
Article
Materials Science, Multidisciplinary
Ivana Malagurski, Ruggero Frison, Anjani K. Maurya, Antonia Neels, Boban Andjelkovic, Ramsankar Senthamaraikannan, Ramesh P. Babu, Kevin E. O'Connor, Tomasz Witko, Daria Solarz, Jasmina Nikodinovic-Runic
Summary: New polyhydroxyoctanoate (PHO)/TiO2 composites were produced, showing tunable properties with preserved flexibility and increased stiffness compared to neat PHO. Biocompatibility and cellular migration studies demonstrated that the composites support cell viability and migration. The results suggest that PHO/TiO2 composites could be used as novel biomaterials for biomedical applications.
Article
Infectious Diseases
Marina Pekmezovic, Melina Kalagasidis Krusic, Ivana Malagurski, Jelena Milovanovic, Karolina Stepien, Maciej Guzik, Romina Charifou, Ramesh Babu, Kevin O'Connor, Jasmina Nikodinovic-Runic
Summary: Novel biodegradable and biocompatible formulations of old drugs like nystatin and amphotericin B were created using a biopolymer matrix. The formulations showed good activity against pathogenic fungi and could sustain drug release for up to 4 days, making them potentially suitable for transdermal application or as coatings for implants.
Article
Engineering, Environmental
Maciej W. Guzik, Tomasz Nitkiewicz, Magdalena Wojnarowska, Mariusz Soltysik, Shane T. Kenny, Ramesh P. Babu, Marshall Best, Kevin E. O'Connor
Summary: The study optimized the production of medium-chain-length polyhydroxyalkanoate (mcl-PHA) using Pseudomonas putida KT2440 fed with a polyethylene (PE)-derived fatty acid mixture. The results showed high mcl-PHA yields in a 20-L setup, indicating the potential environmental advantages of processing waste PE into PHA instead of incineration.
Article
Chemistry, Physical
Bryan Dalton, Purabi Bhagabati, Jessica De Micco, Ramesh Babu Padamati, Kevin O'Connor
Summary: Polyhydroxyalkanoates (PHAs) are biopolyesters that can be accumulated by microorganisms using waste or low-value carbon-containing substrates. They have diverse properties and functionalities, making them suitable for various applications. Continuous technological and material science developments are needed to expand PHA production and market opportunities. Establishing end-of-life management infrastructure is crucial for maximizing the benefits of PHA and other biobased biodegradable polymers. PHAs have the potential to be key polymers in the future materials sector.
Article
Food Science & Technology
Laura Pilar Gomez Barrio, Eduarda Melo Cabral, Ming Zhao, Carlos Alvarez Garcia, Ramsankar Senthamaraikannan, Ramesh Babu Padamati, Uma Tiwari, James Francis Curtin, Brijesh Kumar Tiwari
Summary: This study optimized the extraction process of agar using response surface methodology, improving extraction efficiency by reducing processing time and energy consumption. Ultrasound-assisted extraction was found to further enhance the extraction efficiency compared to conventional extraction. The extracted agar showed similar spectra to commercial agar, but had lower gel strength, indicating potential novel applications.
Article
Biotechnology & Applied Microbiology
Georgia Sourkouni, Sanja Jeremic, Charalampia Kalogirou, Oliver Hofft, Marija Nenadovic, Vukasin Jankovic, Divya Rajasekaran, Pavlos Pandis, Ramesh Padamati, Jasmina Nikodinovic-Runic, Christos Argirusis
Summary: Microplastics are a significant environmental issue and efforts should be made to reduce their use. It is also important to reduce the amount of already spread plastics, which accumulate in the food supply chain and pose a major threat to animals and human life. This study investigated the impact of different advanced oxidation processes on the biodegradability of polylactic acid (PLA) films. The results showed excellent degradation of PLA films, with up to 90% weight loss, using a cocktail of commercial enzymes.
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Saleheen Bano, Mukesh Pednekar, Saranya Rameshkumar, Dipu Borah, Michael A. Morris, Ramesh Babu Padamati, Niamh Cronly
Summary: This study focuses on the reusability of waste polymer 'gels' produced during the manufacturing of PVDF membranes. Solidified PVDF gels were used to prepare membranes via the phase inversion process, and the fabricated membranes retained molecular integrity and exhibited a symmetric bi-continuous porous structure. The membranes fabricated from waste gels showed potential as microfiltration membranes with a pure water flux of 478 LMH and a mean pore size of about 0.2 μm. Additionally, the membranes demonstrated good recyclability in the clarification of industrial wastewater with a flux recovery of about 52%.
Article
Polymer Science
Rituparna Duarah, Ivana Aleksic, Dusan Milivojevic, Saranya Rameshkumar, Jasmina Nikodinovic-Runic, Ramesh Babu Padamati
Summary: A novel bio-based and biodegradable packaging material with good mechanical strength, biocompatibility, and antifungal properties was developed using a melt processing technique. The material was prepared by incorporating a natural antifungal agent, nystatin, into biodegradable polymer composites. The resulting composite films exhibited good antifungal activity against pathogenic fungi and sustained release of nystatin for up to 4 days, making them suitable for antimicrobial packaging applications.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
Sarat Chandra Togarcheti, Ramesh Babu Padamati
Summary: This study compared the environmental impacts of PUFA production from microalgae and farmed fish, finding that PUFA produced from microalgae via heterotrophy had significantly lower PED and EI compared to PUFA produced via photoautotrophy. Additionally, the PED and EI of PUFA production from farmed fish were higher than that produced from microalgae cultivated via heterotrophy, suggesting that microalgae-derived PUFA could potentially replace fish oil in fish feed and reduce pressure on oceans.
CLEAN TECHNOLOGIES
(2021)
Article
Materials Science, Multidisciplinary
Beata M. Szydlowska, Arko Graf, Adam Kelly, Werner J. Blau, Malte C. Gather, Jana Zaumseil, Claudia Backes
JOURNAL OF MATERIALS CHEMISTRY C
(2020)
Article
Physics, Condensed Matter
Shivani Gohri, Jaya Madan, Rahul Pandey
Summary: This study improves the efficiency of SnS-based solar cells by implementing the glancing angle deposition approach and introducing a CZTSSe layer. The findings offer valuable insights for enhancing the design of SnS-based solar cells and making them more efficient.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Mahboubeh Yeganeh, Davoud Vahedi Fakhrabad
Summary: The lattice thermal conductivity of CdO monolayer was investigated, and it was found to be lower than that of bulk CdO due to the lower phonon lifetime and phonon group velocity. As a result, the monolayer exhibits higher thermoelectric efficiency compared to the bulk counterpart.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Shivam Srivastava, Prachi Singh, Anjani K. Pandey, Chandra K. Dixit
Summary: In this research paper, a novel equation of state (EOS) based on finite strain theories is proposed for predicting the thermo elastic properties of various materials. Extensive analysis and comparison with existing models and experimental data demonstrate the validity and effectiveness of the proposed EOS in capturing the unique thermodynamic behavior of nanomaterials, bulk metallic glasses, and superconductors. This research is of great importance in the fields of materials science, nanotechnology, and condensed matter physics.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Subrata Das, Sanjoy Kr Mahatha, Konstantin Glazyrin, R. Ganesan, Suja Elizabeth, Tirthankar Chakraborty
Summary: In this study, we investigated the structural evolution of Tb2Ti2O7 under external pressure and temperature, and confirmed the occurrence of an isostructural phase transition beyond 10 GPa pressure. This transition leads to changes in lattice parameters and mechanical properties, which can be understood in terms of localized rearrangement of atoms.
SOLID STATE COMMUNICATIONS
(2024)
Article
Physics, Condensed Matter
Hamze Mousavi
Summary: It has been found that undoped graphene sheet has zero states at the Fermi energy level, making it difficult for Cooper pairing to occur in the superconductive state. However, T-graphene, with physical properties similar to graphene, exhibits metallic behavior and has available electron states near the Fermi level. The gap equation for the s-wave superconductive state is derived based on the attractive Hubbard model and the Bogoliubov de Gennes equation for this two-dimensional metallic system. It is found that a nonzero critical temperature, τ, exists for different levels of electron-electron interaction, ǫ. τ has higher values when the system has electronic half band-filling, but decreases when the system does not have half band-filling. However, τ vanishes when ǫ becomes small enough near the band edges.
SOLID STATE COMMUNICATIONS
(2024)
