Article
Environmental Sciences
Rosa Posada-Baquero, Kirk T. Semple, Miguel Ternero, Jose-Julio Ortega-Calvo
Summary: The study utilized desorption extraction method standardized by ISO16751 to determine the bioavailable concentration of the commonly regulated polycyclic aromatic hydrocarbon benzo(a)pyrene (BaP) in industrial soil, showing comparable results to field-contaminated soils.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Spectroscopy
Sureyya Oguz Tumay, Mahsa Haddad Irani-nezhad, Alireza Khataee
Summary: A novel pyrene-modified anthracene dipodal sensor was successfully developed for the sensitive determination of iron ions in real samples. The sensor showed selective quenching of fluorescence signal upon interaction with Fe3+ ions, with a detection limit lower than nearly 20 times the tolerance limit in drinking water set by the USEPA. The accuracy of the sensor was confirmed by ICP-OES and spike/recovery test, demonstrating high accuracy for fast, easy, and accessible determination of iron.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Multidisciplinary
Meng Zhang, Jingran Yang, Longkun Yang, Zhipeng Li
Summary: Surface-enhanced Raman scattering (SERS) is a powerful nondestructive analytical tool with high molecular sensitivity and specificity. In this work, we propose a robust calibration method by using a referenced measurement as the intensity standard, which overcomes the vulnerability of the calibration curve in SERS measurements and enables quantification analysis. The method utilizes an intensity reference that reflects the SERS substrate enhancement and avoids competing adsorption between target molecules and the internal standard. This SERS calibration method can accurately evaluate the concentration of target molecules and has the potential to be applied in quantitative SERS analysis.
Article
Chemistry, Physical
Zhaojuan Wang, Zhipeng Gao, Min Qiao, Junxia Peng, Liping Ding
Summary: A pyrene-functionalized organic-inorganic hybrid nanosensor was synthesized for the selective turn-off detection of Hg2+ in aqueous solution. The nanosensor exhibited high sensitivity, selectivity, and reliability in detecting Hg2+.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Lidia Bandura, Monika Bialoszewska, Tiina Leiviska, Malgorzata Franus
Summary: Modification of zeolites with beta-cyclodextrin enhances their adsorption efficacy towards tetracycline antibiotic in aqueous solutions. The study reveals that the amount of cyclodextrin attached to the zeolites plays a crucial role in the adsorption process, with hydrogen bonding formation being the main mechanism.
Article
Chemistry, Physical
Sureyya Oguz Tumay, Serkan Yesilot
Summary: Novel pyrene- and anthracene-based Schiff base derivatives were designed and synthesized for selective fluorescence determination of Hg2+ ions, by inhibiting PET processes after complex formation. The experimental conditions were optimized for sensitive and selective detection of Hg2+ ions in food and environmental samples.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Chemistry, Analytical
Yuji Tsuchido, Shohei Kojima, Ko Sugita, Shoji Fujiwara, Takeshi Hashimoto, Takashi Hayashita
Summary: This study developed a supramolecular inclusion complex system using cyclodextrin and phenylboronic acid to selectively recognize monosaccharides through fluorescence response. The length of alkyl spacers significantly affected the affinity for saccharides, with high selectivity for glucose demonstrated in the supramolecular complexes. These results highlight the importance of alkyl spacer lengths in controlling saccharide recognition in aqueous solution.
ANALYTICAL SCIENCES
(2021)
Article
Chemistry, Analytical
Ting Lu, Ee Mei Gui, Juan Wang, Pui Sze Cheow, Tang Lin Teo, Tong Kooi Lee
Summary: This paper describes the development of an olive oil certified reference material containing benzo[a]pyrene and benz[a]anthracene, and provides a method for their determination. The obtained certified values and uncertainties were in good agreement with other metrology institutes, showing the suitability of the method. The use of the material as a positive control for PAH monitoring in edible oil samples is emphasized.
ACCREDITATION AND QUALITY ASSURANCE
(2022)
Article
Chemistry, Multidisciplinary
Mika Sawai, Sayaka Matsumoto, Yuki Mimura, Yoshitane Imai, Shoko Yamazaki, Nobuko Kanehisa, Norimitsu Tohnai, Eiji Nakata, Hiroshi Takashima
Summary: Hydrophobic pyrene derivatives combined with gamma-cyclodextrin formed spatially restricted dimer structures with high quantum yields of excimer emission in aqueous solution. The interaction between hydroxyl groups in the side chain of PySer with those of gamma-CD led to a strong circular dichroism and CPL signal, indicating a strengthened chiral dimeric structure.
JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY
(2022)
Article
Environmental Sciences
H. Tsukada, T. Takahashi, S. Fukutani
Summary: Significant amounts of radionuclides, including radiocaesium, Sr-90, and I-129, were released into the environment during the 2011 TEPCO's FDNPS accident. Crop samples collected from Fukushima and neighboring prefectures in 2018 and 2019 showed higher activity concentration of Cs-137 in the coastal areas. The activity concentration of Sr-90 in the crops was similar among different areas in Fukushima and comparable to levels found throughout Japan. The activity concentration of I-129 in crops collected from the coastal area was higher, but the activity ratio of I-129/Cs-137 was much lower. Internal radiation doses from the ingestion of local crops in the coastal area were calculated to be 0.0046 mSv for radiocaesium and 0.00000045 mSv for I-129 in 2019.
RADIATION PROTECTION DOSIMETRY
(2022)
Article
Chemistry, Physical
Michael Crowe, Zhiqi Tian, Peng Zhang, J. J. Diao
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2018)
Article
Chemistry, Inorganic & Nuclear
Emily G. Westbrook, Peng Zhang
DALTON TRANSACTIONS
(2018)
Article
Chemistry, Analytical
Zhao Yu, Michael E. Smith, Jinnan Zhang, Yan Zhou, Peng Zhang
Review
Chemistry, Physical
Zhiqi Tian, Michael Crowe, Liqin Shao, Peng Zhang, Lei Zhang, Qing Zhao, Jiajie Diao
PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION
(2018)
Article
Chemistry, Analytical
Rebecca N. Silva, Anjaly N. Vijayan, Emily Westbrook, Zhao Yu, Peng Zhang
ANALYTICA CHIMICA ACTA
(2019)
Article
Chemistry, Analytical
Anjaly N. Vijayan, Zhiming Liu, Haohan Zhao, Peng Zhang
ANALYTICA CHIMICA ACTA
(2019)
Article
Chemistry, Analytical
Michael E. Smith, Angela L. Stastny, John A. Lynch, Zhao Yu, Peng Zhang, William R. Heineman
ANALYTICAL CHEMISTRY
(2020)
Article
Biochemistry & Molecular Biology
Eskedar Tessema, Vijayanath Elakkat, Chiao-Fan Chiu, Jing-Hung Zheng, Ka Long Chan, Chia-Rui Shen, Peng Zhang, Norman Lu
Summary: Phospha-Michael addition is a versatile tool for the formation of P-C bonds, offering the possibility to access diverse functionalized products. The use of DMAP∙Hsac and fluorous long-chained pyridine as catalysts efficiently catalyzes the addition reactions, with high reactivity and good catalytic recovery and reusability. The easy separation of catalysts from products demonstrates the outstanding efficacy of the systems.
Article
Chemistry, Analytical
Michael E. Smith, Daniel P. Rose, Xiaoyu Cui, Angela L. Stastny, Peng Zhang, William R. Heineman
Summary: The study aimed to develop a novel, thin, and wearable visual H-2 sensor prototype for noninvasive monitoring of in vivo Mg-implant biodegradation. The sensor rapidly changes color from blue to pink upon exposure to different levels of H-2 through a chemical reaction involving nanoparticles. It has a wide concentration range suitable for monitoring Mg-alloy implant biodegradation in medical research and clinical settings.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Nathaniel M. Barker, Stephen D. Taylor, Ethan Ferguson, Jeanette A. Krause, Allen G. Oliver, William B. Connick, Peng Zhang
Summary: Solvent plays a crucial role in the recrystallization process and crystallinity of materials, controlling their stability and utility. The presence of a solvent in the crystalline lattice, such as water, significantly affects the overall stability of platinum polymorphs. These polymorphs exhibit unique vapochromic responses when exposed to various solvents.
INORGANIC CHEMISTRY
(2021)
Article
Orthopedics
Hanna H. Sorensen, Robert A. Magnussen, Alex C. DiBartola, Noah T. Mallory, Alan S. Litsky, Paul Stoodley, Steven D. Swinehart, Robert A. Duerr, Christopher C. Kaeding, David C. Flanigan
Summary: This study aimed to determine the impact of bacterial inoculation and length of exposure on the mechanical integrity of soft tissue tendon grafts. The presence of Staphylococcus epidermidis increased the elasticity and decreased the ultimate tensile strength of human cadaveric tendons, with a more significant effect observed with increasing bioburden.
JOURNAL OF ORTHOPAEDIC RESEARCH
(2023)
Article
Nanoscience & Nanotechnology
Zhao Yu, Michael F. Grasso, Xiaoyu Cui, Rebecca Nogueira Silva, Peng Zhang
ACS APPLIED BIO MATERIALS
(2020)