Article
Polymer Science
Jacek Mirowski, Rafal Oliwa, Mariusz Oleksy, Jolanta Tomaszewska, Joanna Ryszkowska, Grzegorz Budzik
Summary: Adding 20% of raspberry pomace filler after extraction significantly extended the thermal stability time for the composites, but as the concentration of filler in the PVC matrix increased, the composite density, impact strength, and tensile strength values decreased significantly while their modulus of elasticity and Shore hardness increased.
Article
Chemistry, Physical
Katarzyna Skorczewska, Krzysztof Lewandowski, Slawomir Wilczewski
Summary: This study investigates the modification of poly(vinyl chloride) (PVC) composites using a hybrid carbon filler made of carbon fibers (CFs) and multiwalled carbon nanotubes (MWCNTs). The results show that while there is a significant increase in the elastic modulus, there is no substantial improvement in the mechanical properties of the PVC/CF/CNT composites. However, there are slight increases in thermal stability and glass transition temperature (Tg). The addition of the hybrid filler leads to substantial changes in the electrical properties of the composites, with improved dispersibility of CNTs in the matrix.
Article
Chemistry, Physical
Jolanta Tomaszewska, Martina Wieczorek, Katarzyna Skorczewska, Izabela Klapiszewska, Krzysztof Lewandowski, Lukasz Klapiszewski
Summary: Halloysite-lignin hybrid materials were designed and obtained, showing good thermal stability and homogeneity. Increasing the proportion of the inorganic part in HL systems improved the homogeneity, as confirmed by SEM observations and particle size distribution analysis.
Article
Polymer Science
Katarzyna Skorczewska, Krzysztof Lewandowski, Piotr Szewczykowski, Slawomir Wilczewski, Joanna Szulc, Paulina Stopa, Paulina Nowakowska
Summary: This paper explores the characteristics of unplasticized PVC composites modified with biofiller obtained from waste eggshells, showing that the biofiller significantly improves thermal stability, increases the modulus of elasticity and softening point, and is suitable for traditional PVC mixtures' processing.
Article
Polymer Science
Jacek Mirowski, Rafal Oliwa, Mariusz Oleksy, Edward Roj, Jolanta Tomaszewska, Kamila Mizera, Joanna Ryszkowska
Summary: This study investigated the effect of residual hops on the properties of poly(vinyl chloride) (PVC), finding that their addition increased thermostability but decreased density, impact strength, and tensile strength. On the other hand, their Young's modulus, flexural modulus, and Rockwell hardness increased. Flame resistance tests showed that with increasing hop content, the limiting oxygen index and maximum heat release rate decreased, leading to a flammability rating of V0 according to the UL94 test.
Article
Materials Science, Composites
Liangke Hu, Haibo Long, Feiwen Yang, Qilong Cai, Yixuan Wu, Zhiyuan Li, Jialin Xiao, Dingshu Xiao, Shuting Zhang, Litao Guan, Wenxu Zheng, Wuyi Zhou, Xianming Dong
Summary: Lignin microspheres were successfully prepared and blended with PLA to form composites for fused deposition modeling. The addition of lignin microspheres significantly improved the mechanical properties of the composites.
POLYMER COMPOSITES
(2022)
Article
Materials Science, Multidisciplinary
Youpeng Zhang, Chong Ding, Na Zhang, Xiangyun Di, Yi Li, Yihe Zhang
Summary: Filler agglomeration and poor compatibility between inorganic filler and organic matrix are key issues affecting the properties of PVC-based composites. Surface treatment of iron ore tailings (IOT) with commercially available silane and titanate coupling agents improves the dispersibility and hydrophobicity of IOT, as well as enhances the inorganic-organic interface compatibility. As a result, the properties of the composites filled with modified IOT (S-IOT/PVC and T-IOT/PVC) are superior to those filled with unmodified IOT (IOT/PVC). Among the modified fillers, T-IOT shows the best performance, exhibiting significant improvements in tensile strength, Young's modulus, flexural strength, and notched impact strength.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Biochemistry & Molecular Biology
Dylan D. Edmundson, Richard R. Gustafson, Anthony B. Dichiara
Summary: In this research, monodisperse lignin nanoparticles (LNPs) were synthesized using acoustic irradiation. The particle size distribution and colloidal stability of LNPs were adjusted by varying solution pH and ultrasonication energy. The synthesized LNPs were incorporated into poly (vinyl) alcohol (PVA) to prepare thin and flexible nanocomposite films, which exhibited higher UV absorption ability and enhanced strength.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Materials Science, Multidisciplinary
Muhammad Angga Anugrah, Sultan Ilyas, Dahlang Tahir
Summary: This study investigated the effects of various inorganic fillers on the performance of composite phantom breast with polyvinyl alcohol as a binder. Analyzing bonding characteristics, structural properties, and atomic, electronic, and absorption abilities of the composite provided insights into creating breast phantom materials. The linear attenuation coefficient of the composites showed a direct correlation with the filler used, suggesting potential for optimized breast phantom production.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Polymer Science
Wuxiang Zhang, Haoran Wu, Nan Zhou, Xiunan Cai, Yanjuan Zhang, Huayu Hu, Zhenfei Feng, Zuqiang Huang, Jing Liang
Summary: The MBH-MAL complex synthesized by hydrothermal method showed synergistic improvement on the thermal stability and flame retardancy of PVC based composites, with significantly increased static thermal stability time and oxygen index.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2021)
Article
Materials Science, Composites
Pradeep Rajamani, Arumugaprabu Veerasimman, Geetha Palani, Vigneshwaran Shanmugam, Sundarakannan Rajendran, Ajith Subbaiah, G. B. Rameshkumar
Summary: In this study, biochar derived from cashew nut shells was added to vinyl ester-based composites to enhance their mechanical and thermal properties. The composite with 10% biochar showed significantly higher tensile strength and hardness compared to the neat vinyl ester. The composite with 15% biochar exhibited the highest impact and flexural strength. Thermogravimetric analysis demonstrated that the composite with 15% biochar had a yield percentage of approximately 45%. This study provides an overview of biochar applications and highlights the advantages of biomass wastes in producing strong and thermally stable composites.
POLYMER COMPOSITES
(2023)
Article
Polymer Science
Zhixuan Cui, Pingping Jiang, Yan Leng, Shan Feng, Minjia Lu, Shijun Chen, Xunxun Sheng
Summary: N,N'-bis(salicylaldehyde) ethyldiamino-zinc (BSE-Zn) was synthesized from salicylaldehyde and ethylenediamine. The structure of BSE-Zn was analyzed and its thermal properties were studied. The thermal stability of BSE-Zn stabilized PVC samples was superior to the calcium zinc soaps commonly used in industry.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Materials Science, Textiles
B. Balavairavan, S. S. Saravanakumar, K. M. Manikandan
Summary: The study demonstrated that PVA/NCSF biofilms have good structural, thermal, and mechanical properties, as well as potential in water absorption and biodegradability. The addition of NCSF enhanced the tensile strength and elastic modulus of the biofilms, but resulted in decreased elongation properties.
JOURNAL OF NATURAL FIBERS
(2021)
Article
Polymer Science
Jolanta Tomaszewska, Tomasz Sterzynski, Damian Walczak
Summary: The study investigated the thermal stability of PVC with 1 wt % of spherical porous nanosilica prepared by roll milling at various processing times. The addition of porous nanosilica was found to improve thermal stability by absorbing HCl gas produced during dehydrochlorination reaction, resulting in minor color changes and lower evolution of hydrogen chloride gas. The results showed that TGA measurements were not sensitive enough to detect PVC degradation at processing conditions below 220 degrees C.
Article
Polymer Science
Jieun Jeong, Soochan Kim, Sangsoo Yun, Xin Yang, Young Jun Kim
Summary: Polyethersulfone (PES) is an engineering thermoplastic with outstanding thermal and dimensional stability, but its high coefficient of thermal expansion (CTE) limits its applications in automobiles, microelectronics, and flexible displays. Recent studies have focused on reducing its CTE and improving its mechanical properties by adding nano-sized fillers or materials. In this study, PES/lignin nanocomposite films were prepared by varying the relative ratio of PES and lignin, resulting in improved thermomechanical and optical properties of PES.
Article
Environmental Sciences
Shoomaila Latif, Amna Liaqat, Muhammad Imran, Ayesha Javaid, Nazim Hussain, Teofil Jesionowski, Muhammad Bilal
Summary: A comparative study was conducted on the degradation of diclofenac sodium using ZnO and ZnFe2O4 as photocatalysts. The results showed that ZnFe2O4 exhibited higher degradation efficiency, degrading 61.4% of the drug in 120 minutes, compared to 48.9% by ZnO. Zinc ferrite also showed good recyclability and stability, making it a promising catalyst for wastewater remediation.
ENVIRONMENTAL RESEARCH
(2023)
Review
Biochemistry & Molecular Biology
Zhongbiao Tan, Hairong Cheng, Gang Chen, Fang Ju, Jesus Fernandez-Lucas, Jakub Zdarta, Teofil Jesionowski, Muhammad Bilal
Summary: In recent years, enzyme-based biocatalytic systems have gained increasing attention in industrial and applied research. These systems have been applied in sustainable and environmentally friendly production processes in various industries. However, the low stability of enzymes and difficulties in separation, recovery, and reusability have limited their industrial-scale manufacturing. Immobilization and co-immobilization on robust support materials have emerged as valuable strategies to overcome these challenges. By using environmentally friendly bio-polymers and nanostructured materials, multi-enzyme co-immobilization offers improved process efficiency and cost-effectiveness in biotechnological and chemical industries.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Review
Pharmacology & Pharmacy
Tayyaba Anjum, Nazim Hussain, Hafiz M. N. Iqbal, Artur Jedrzak, Teofil Jesionowski, Muhammad Bilal, Muhammad Bilal
Summary: Anticancer drugs have been produced using heterocyclic compounds, but there is a need for inexpensive and less toxic nanocatalysts for the formation of these compounds. Nanotechnology and nano-medicine provide personalized medicine and new medical technologies. Magnetic nanoparticles have been developed for the manufacturing of heterocyclic compounds for cancer treatment. They can act as diagnostic and therapeutic agents, offering less toxicity and better targeting in therapies such as chemotherapy and thermotherapy.
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
(2023)
Review
Biochemistry & Molecular Biology
Muhammad Bilal, Ehsan Ullah Rashid, Junaid Munawar, Hafiz M. N. Iqbal, Jiandong Cui, Jakub Zdarta, Syed Salman Ashraf, Teofil Jesionowski
Summary: Nanobiocatalysts are an emerging field of nanobiocatalysis that integrates enzyme molecules into multifunctional materials like metal-organic frameworks (MOFs). Among these materials, functionalized magnetic MOFs have gained significant interest as versatile nano-biocatalytic systems for various organic transformations. These systems offer controllable enzyme microenvironments and show promise in enzyme engineering and biocatalytic transformations.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Review
Biochemistry & Molecular Biology
Muhammad Bilal, Jakub Zdarta, Teofil Jesionowski, Hafiz M. N. Iqbal
Summary: Manganese peroxidases (MnPs) are enzymes with robust catalytic features that have gained attention in biotechnological applications, particularly in environmental remediation. They can degrade various organic pollutants and immobilized MnP fractions perform well in hostile environments. The article covers the microbial sources, structural attributes, immobilization strategies, and various biotechnological applications of MnP.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Physical
Sadia Anjum, Shakira Aslam, Nazim Hussain, Muhammad Bilal, Grzegorz Boczkaj, Wojciech Smulek, Teofil Jesionowski, Hafiz M. N. Iqbal
Summary: Given the current issues with global warming and rising greenhouse gas emissions, bio-hydrogen is a viable alternative fuel option. This study examines the different technologies and processes involved in bio-hydrogen production, as well as the limitations and challenges. Organic waste, particularly biodegradable waste, is the preferred feedstock for bio-hydrogen generation. The review also explores alternative options for improving process efficiency and discusses the hindrances to fuel-cell commercialization.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Adam Kubiak, Anna Grzegorska, Elzbieta Gabala, Joanna Zembrzuska, Miroslaw Szybowicz, Hubert Fuks, Anna Szymczyk, Anna Zielinska-Jurek, Marek Sikorski, Teofil Jesionowski
Summary: A novel method incorporating carbon into the structure of titania has been proposed using a widely used and cheap surfactant, cetyltrimethylammonium bromide. The method allows for the synthesis of TiO2-C nanostructures with carbon deposited either on the surface or between the TiO2 nanoparticles. The research is innovative in the design of cheap LED solutions and facile synthesis of TiO2-C for energy-saving photocatalytic systems.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Review
Environmental Sciences
Karolina Bachosz, Jakub Zdarta, Muhammad Bilal, Anne S. Meyer, Teofil Jesionowski
Summary: Enzymatic processes are becoming increasingly important, and the role of enzymatic cofactors is crucial for efficient biocatalytic activities. Therefore, the development of cofactor regeneration systems is essential. This review summarizes current knowledge on enzymatic regeneration methods and highlights potential directions for further development.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Materials Science, Multidisciplinary
Izabela Klapiszewska, Lukasz Lawniczak, Sebastian Balicki, Bartosz Gapinski, Michal Wieczorowski, Kazimiera A. Wilk, Teofil Jesionowski, Lukasz Klapiszewski, Agnieszka Slosarczyk
Summary: One of the key considerations in shaping the antibacterial properties of nano-mixed cementitious composites is the proper dispersion of zinc oxide nanoparticles in the cement matrix. This study utilized a two-stage modification process, involving both dry mixing and the addition of a superplasticizer, to achieve better dispersion of zinc oxide in the cement matrix. The results showed that combining mechanical and ultrasonic mixing resulted in the most homogeneous mixture, while composites obtained solely through mechanical mixing exhibited better antimicrobial properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Electrochemistry
Artur Jedrzak, Maria Kuznowicz, Teofil Jesionowski
Summary: In this study, a biosensor using beta-cyclodextrins grafted on magnetite@polynorepinephrine nanomaterial with glucose oxidase was developed. The biosensor showed a rapid response, long-term stability, and enhanced sensitivity, enabling measurements of glucose in a wide range of concentrations. Real sample testing demonstrated its potential for glucose determination in biological fluids and commercial products. The use of beta-cyclodextrins improved the selectivity, stability, and sensitivity of the biosensor.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2023)
Article
Engineering, Environmental
Jakub Zdarta, Filip Ciesielczyk, Muhammad Bilal, Katarzyna Jankowska, Karolina Bachosz, Oliwia Degorska, Agnieszka Rybarczyk, Teofil Jesionowski, Anne S. Meyer
Summary: Synthetic hormones are dangerous pollutants that pose risks to the reproductive health of both ecosystems and humans through water, including drinking water. Traditional wastewater treatment methods are not efficient enough. In this study, a new biosystem made of CaSiO3 and laccase was designed and fabricated, and its application for the removal of the synthetic estrogen 17 alpha-ethynylestradiol (EE2) from aqueous systems was demonstrated. The biosystem achieved 100% removal efficiency and showed synergistic degradation through simultaneous adsorption and biocatalytic conversion, with enzymatic conversion dominating.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Shahid Nawaz, Andleeb Tabassum, Sara Muslim, Tayyaba Nasreen, Ausra Baradoke, Tak H. Kim, Grzegorz Boczkaj, Teofil Jesionowski, Muhammad Bilal
Summary: Persistent contaminants in wastewater effluent are a significant threat to aquatic life and a major environmental concern. The traditional methods of wastewater treatment are not cost-effective in removing toxic pollutants from the water environment. Therefore, the development of new technologies and more sustainable alternatives, such as biopolymers, is necessary for wastewater treatment.
Article
Biochemistry & Molecular Biology
Oliwia Degorska, Daria Szada, Teofil Jesionowski, Jakub Zdarta
Summary: Due to the importance of synthesizing APIs in enantiomerically pure form, new methods of asymmetric synthesis are being sought. Biocatalysis is a promising technique that can lead to enantiomerically pure products. In this study, lipase immobilized on modified silica nanoparticles was used to achieve kinetic resolution of a racemic mixture of 3H3P, with the most suitable IL being [BMIM]Cl.
COMPUTATIONAL AND STRUCTURAL BIOTECHNOLOGY JOURNAL
(2023)
Article
Environmental Sciences
Yonghong Han, Juan Tao, Adnan Khan, Afrasiab Khan, Nisar Ali, Sumeet Malik, Chunhao Yu, Yong Yang, Teofil Jesionowski, Muhammad Bilal
Summary: Mercury emissions from the industrial sector are a significant concern due to their toxic health effects. Researchers have developed a method using sorption process to remove mercury from wastewater. Nickel-sulfide nanoparticles incorporated in chitosan microspheres have shown promising results for the removal of toxic mercury ions in wastewater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Multidisciplinary
Anita Kubiak, Alona Voronkina, Martyna Pajewska-Szmyt, Martyna Kotula, Bartosz Lesniewski, Alexander Ereskovsky, Korbinian Heimler, Anika Rogoll, Carla Vogt, Parvaneh Rahimi, Sedigheh Falahi, Roberta Galli, Enrico Langer, Maik Foerste, Alexandros Charitos, Yvonne Joseph, Hermann Ehrlich, Teofil Jesionowski
Summary: In this study, spongin from Hippospongia communis was used as a template to develop a new 3D composite containing goethite. The obtained composite showed potential industrial applications and exhibited satisfactory performance in the electrochemical sensing of dopamine in human urine samples.