Article
Environmental Sciences
Federica Spina, Maria Laura Tummino, Anna Poli, Valeria Prigione, Viktoria Ilieva, Piersandro Cocconcelli, Edoardo Puglisi, Pierangiola Bracco, Marco Zanetti, Giovanna Cristina Varese
Summary: The fungal community in plastic-contaminated landfill soil was studied, showing that certain strains can utilize polyethylene as a sole carbon source for growth and degradation, with potential applications in plastic waste management.
ENVIRONMENTAL POLLUTION
(2021)
Article
Construction & Building Technology
Safeer Ullah, Muhammad Raheel, Rawid Khan, Muhammad Tariq Khan
Summary: This study found that partially adding waste plastic aggregates in asphalt mix reduces mixture density, increases stability, flow values, and resilient modulus, but decreases dynamic modulus values with the increase in frequency.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Huixian Xu, Yanjun Li, Qin Li, Dandan Yang, Ting Li, Saimeng Jin, Liandi Zhou, Qihui Zhang, James H. Clark
Summary: In this study, a simple, green, and environmentally friendly strategy using biochar loaded with self-emulsifying orange peel essential oil (BC/SE-OPEO) was proposed to efficiently adsorb and degrade the aromatic amine p-phenylenediamine (PPD). The results showed that the PPD removal efficiency of 50 mg BC/SE-OPEO reached 98% after 110 min at 40 °C. Mechanistic investigations revealed that reactive oxygen species (ROS) played a vital role in the degradation of PPD, which was eventually degraded to carbon dioxide and water.
Article
Biochemistry & Molecular Biology
Mohd Jahir Khan, Abrar Ahmad, Mahmood Ahmad Khan, Sahabjada Siddiqui
Summary: This study investigated the anticancer properties of zinc oxide nanoparticles (ZnO-NPs) on human epidermoid carcinoma cells and found that ZnO-NPs induce apoptosis in A431 cells through DNA degradation and generation of reactive oxygen species via p53, bax/bcl-2, and caspase pathways.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2021)
Article
Chemistry, Applied
Joseph P. Hittinger, Daniel F. Shantz
Summary: This study demonstrates the feasibility of cracking LDPE using H-ZSM-5 catalysts at reaction temperatures below 300°C by varying the textual properties and acid site content of the catalysts. Increasing the external surface area of H-ZSM-5 dramatically enhances LDPE conversion. Strong Bronsted acid sites are necessary for high conversion of LDPE at this temperature range. A low molecular weight model molecule provides insight into the cracking mechanism of LDPE over MFI catalysts.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Murali Ramu, Amirthavalli Chakravarthy
Summary: This study reports a facile synthesis of undoped zinc oxide semiconductor nanoparticles and their efficient photocatalytic property towards methylene blue dye degradation. The synthesis method used various aliphatic amines as bases, and the resulting materials were characterized for their structure, morphology, and optical properties. It was found that the choice of aliphatic amine affected both the photodegradation properties and morphology of the undoped ZnO materials. The nanomaterial synthesized with n-butyl amine showed the highest catalytic degradation due to high absorption in the visible region.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Analytical
Kun Hong, Wenming Fu, Mengmeng Guang, Yaning Zhang, Bingxi Li
Summary: The study investigated the microwave heating performances of LDPE plastic particles under different microwave powers, feeding loads, and chamber volumes. Results showed that temperatures and heating rates of the plastic particles varied with these factors. Equations were proposed to estimate temperatures with relative errors between -18.04% and 9.10%.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Food Science & Technology
Shanrui Li, Xiaolong Wang, Lian Li, Jun Liu, Yunhan Ding, Tong Zhao, Yuantao Zhang
Summary: In this study, the authors used Reactive Molecular Dynamics (RMD) simulation to investigate the detoxification pathways of the mycotoxin DON induced by reactive oxygen species (ROS). It was found that ROS can modify toxicologically important functional groups of DON through various reactions, reducing its toxicity and providing theoretical understanding for plasma degradation of mycotoxins in the future.
FOOD RESEARCH INTERNATIONAL
(2022)
Article
Engineering, Environmental
Jiaming Liu, Zhangwei Yao, Genping Qiu, Yinhua Wan, Weijie Song, Huifeng Zeng, Feifei Yang, Da Zhao, Wenjing Yuan, Peihai Ju, Ruixi Lin, Hengcheng Zhou, Lili Shi, Kang Hu
Summary: Defected porous carbon is developed to sustainably release ROS for the effective degradation of antibiotics, achieving a removal rate of 98% for common antibiotics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Ayyasamy Gowthami, Mohammed Syed Marjuk, Piliyan Raju, Karuppaiya Nanthini Devi, Perumal Santhanam, Sundarraj Dinesh Kumar, Pachiappan Perumal
Summary: The present study investigated the degradation ability of five marine microalgae strains on low-density polyethylene (LDPE). The results showed that Picochlorum maculatum was the most effective strain in degrading LDPE, with significant weight loss, high reduction rate, and short half-life. SEM images revealed surface erosion and ATR-FTIR spectra showed functional group peaks and new peaks, indicating the degradation of LDPE by microalgae.
MARINE POLLUTION BULLETIN
(2023)
Article
Engineering, Environmental
Adriana Popa, Dana Toloman, Maria Stefan, Anca Petran, Sergiu Macavei, Sorin Ulinici, Manuela Stan, Lucian Barbu-Tudoran, Mihaela Vlassa, Ovidiu Pana
Summary: The PVDF-P(L-DOPA)-ZnO hybrid membrane effectively removed cationic dyes and antibiotics from water through structural modifications and improved photocatalytic properties. The efficient separation of photoinduced electron-hole pairs promoted photocatalytic activity, leading to high stability even after 3 cycles of use.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Hyunjun Choi, Bongseo Choi, Jun-Hyeok Han, Ha Eun Shin, Wooram Park, Dong-Hyun Kim
Summary: A ROS-responsive cleavable hierarchical metallic supra-nanostructure (HMSN) is reported, which shows significant structural deformation in the presence of ROS and demonstrates potential in cancer treatment and other biomedical applications.
Article
Multidisciplinary Sciences
Zhen Xu, Nuwayo Eric Munyaneza, Qikun Zhang, Mengqi Sun, Carlos Posada, Paul Venturo, Nicholas A. Rorrer, Joel Miscall, Bobby G. Sumpter, Guoliang Liu
Summary: Conversion of plastic wastes to fatty acids is an attractive and economically viable method for supplementing the sourcing of high-value chemicals. Our method achieves a conversion rate of up to 80% and produces fatty acids with high molar masses. The process can be applied to municipal PE and PP wastes, and the resulting fatty acids can be further converted into high-value surfactants without the need for subsidies.
Article
Chemistry, Physical
Zhaoyi Wang, Hao Xiong, Zihe Zhai, Yuejun Yao, Tong Zhou, Haolan Zhang, Cunyi Fan, Changyou Gao
Summary: In this study, ROS-scavenging nanoparticles were developed for the treatment of osteoarthritis. The nanoparticles exhibited slow degradation and prolonged ROS-elimination ability, allowing for long-term retention in the joints. Additionally, the nanoparticles demonstrated anti-inflammatory effects and protected against cartilage damage, effectively attenuating the progression of osteoarthritis.
Article
Chemistry, Physical
Zhaoyi Wang, Hao Xiong, Zihe Zhai, Yuejun Yao, Tong Zhou, Haolan Zhang, Cunyi Fan, Changyou Gao
Summary: In this study, ROS-scavenging nanoparticles were developed by crosslinking poly(propylene fumarate) and poly(thioketal). These nanoparticles were further modified with chondroitin sulfate and showed prolonged joint retention time, ROS elimination ability, and anti-inflammatory effects, protecting the articular surface erosion and attenuating osteoarthritis progression.