Article
Chemistry, Inorganic & Nuclear
Ceren Akpunar, Namik Ozdemir, Mert Olgun Karatas, Bulent Alici, Ismail Ozdemir
Summary: In this study, we synthesized five new coumarin-functionalised PEPPSI type Pd-NHC complexes to examine their catalyst properties. The complexes showed slightly distorted square-planar geometry and exhibited catalytic activity in the Suzuki-Miyaura reaction of phenylboronic acid and aryl bromide derivatives.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Crystallography
Lixin You, Rui Tan, Xiaojuan Wang, Jianhong Hao, Shiyu Xie, Gang Xiong, Fu Ding, Andrei S. Potapov, Yaguang Sun
Summary: In this study, a new heterogeneous catalyst Pd-NHC@Eu-BCI was synthesized by incorporating N-heterocyclic carbene-palladium active sites into a 2D coordination polymer based on a 1,3-bis(carboxymethyl)imidazolium ligand. The catalyst was thoroughly characterized using various analytical techniques. The Pd-NHC@Eu-BCI catalyst exhibited excellent catalytic activity in the Suzuki-Miyaura cross-coupling reaction. It could be easily recovered from the reaction mixture and maintained its catalytic activity and structure even after five cycles.
Article
Materials Science, Paper & Wood
Arnet Maria Antony, Masira Imtiyaz Chamanmalik, Vishal Kandathil, Harini G. Sampatkumar, B. S. Sasidhar, C. V. Yelamaggad, Siddappa A. Patil
Summary: A new N-heterocyclic carbene-palladium(II) complex grafted on cellulose was synthesized as a heterogeneous catalyst. The structure, morphology, thermal stability and chemical composition of the catalyst were confirmed by various analytical techniques. The catalyst exhibited excellent catalytic ability in Suzuki-Miyaura and Mizoroki-Heck cross-coupling reactions, with good tolerance to various functional groups and easy recovery by filtration.
Article
Chemistry, Applied
Mitat Akkoc, Nesrin Bugday, Serdar Altin, Sedat Yasar
Summary: The Magnetite@MCM-41@NHC@Pd catalyst was characterized and shown to have high catalytic activity in Suzuki-Miyaura reactions. It could be recovered and reused multiple times without substantial loss in performance.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Yahao Dong, Fengjun Xue, Yuping Wei
Summary: This study designed and prepared an eco-friendly magnetic palladium catalyst with excellent catalytic activity, easy recovery, high thermal stability, and low toxicity, providing new possibilities for the application of magnetic materials in green organic catalysis.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Biochemistry & Molecular Biology
Wei Huang, Huixian Ye, Xiaodan Li, Yuntong Li, Junyue Lin
Summary: In this study, a polymer network containing N-heterocyclic carbene palladium (PNNHC-Pd) catalytic active sites was fabricated through an immobilization process. The N-heterocyclic carbene palladium dispersed homogeneously in the polymer network, leading to excellent catalytic activity, high stability, and superior reusability in the palladium-catalyzed Suzuki-Miyaura coupling reaction in aqueous medium. This work provides a new insight into the heterogenization of homogeneous catalysts based on polymer network.
CHEMISTRY & BIODIVERSITY
(2023)
Article
Chemistry, Inorganic & Nuclear
Mitat Akkoc, Nesrin Bugday, Serdar Altin, Nadir Kiraz, Sedat Yasar, Ismail Ozdemir
Summary: A novel magnetic nano Fe3O4@SiO2@NHC@Pd-MNPs heterogeneous catalyst was successfully prepared and demonstrated excellent catalytic activity for Suzuki-Miyaura cross-coupling reactions. The catalyst showed high stability and could be easily recovered and reused multiple times without significant loss of catalytic activity.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2021)
Article
Polymer Science
Noelia Esteban, Miguel Claros, Cristina Alvarez, Angel E. Lozano, Camino Bartolome, Jesus M. Martinez-Ilarduya, Jesus A. Miguel
Summary: A new set of microporous organic polymers (POPs) with high microporosity and moderate thermal stability has been synthesized via Friedel-Crafts knitting. These polymers, containing diphosphine derivatives, act as efficient catalysts for Suzuki-Miyaura coupling reactions, exhibiting excellent recyclability.
Review
Chemistry, Physical
Gianluigi Albano, Antonella Petri, Laura Antonella Aronica
Summary: In recent years, there has been extensive research on immobilizing palladium nanoparticles on solid supports for the preparation of active and stable catalytic systems. Compared to inorganic materials, naturally occurring organic solids are more cost-effective and readily available. This review focuses on the application of metal catalysts supported by natural biomaterials in C-C bond formation reactions, specifically Mizoroki-Heck, Suzuki-Miyaura, and Sonogashira reactions. Different types of organic matrices, such as cellulose, starch, pectin, agarose, chitosan, as well as proteins and enzymes, are discussed, highlighting the heterogeneous nature and recyclability of each catalyst.
Article
Chemistry, Inorganic & Nuclear
Li-Xin You, Ying Xu, Fan Zhang, Jian-Hong Hao, Shi-Yu Xie, Gang Xiong, Andrei S. Potapov, Fu Ding, Ya-Guang Sun
Summary: A novel 3D Sm-MOF was synthesized and functionalized with N-heterocyclic carbene-Pd(II) by post-synthesis modification (PSM) method. The resulting Sm-MOF-Pd exhibited high catalytic activity in Suzuki-Miyaura cross-coupling reactions, with a yield of 99% under optimal conditions. It also maintained good catalytic performance after four cycles.
Article
Chemistry, Organic
Ruoqian Fan, Meiying Kuai, Dong Lin, Felix Bauer, Weiwei Fang
Summary: A new palladacyclic N-heterocyclic carbene pre-catalyst was designed and successfully applied for Pd-catalyzed C-N cross-coupling reactions of challenging heteroaryl chlorides. The desired aminated products were achieved in good to excellent yields.
Article
Chemistry, Physical
Arnet Maria Antony, Vishal Kandathil, Manjunatha Kempasiddaiah, B. S. Sasidhar, Shivaputra A. Patil, Siddappa A. Patil
Summary: A new h-BN@NHC-Pd heterogeneous catalyst was designed and synthesized, characterized by various techniques, and studied for its catalytic activity in Suzuki-Miyaura cross-coupling reactions. The catalyst showed excellent catalytic efficiency with easy recovery and high stability after multiple reuses. Overall, it has remarkable advantages such as simplicity of operation, high yields, short reaction times, and heterogeneity.
Article
Chemistry, Multidisciplinary
Anindita Dewan, Manashi Sarmah, Prantika Bhattacharjee, Pankaj Bharali, Ashim J. Thakur, Utpal Bora
Summary: This study reports the design, synthesis, and application of naturally occurring cellulose from agro waste pomegranate peel as a novel support for active biogenic Pd nanoparticles for Suzuki-Miyaura and Sonogashira cross-coupling reactions at room temperature. The cellulose matrix enables well dispersion of Pd nanoparticles over the support to generate Pd@cellulose, exhibiting excellent catalytic activity and recyclability under ligand-free mild reaction conditions. The synthesized cellulose nanofibers and Pd-anchored heterogeneous nanofibers were characterized through various analytical techniques.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2021)
Article
Materials Science, Multidisciplinary
Saeed Bahadorikhalili, Leila Ma'mani, Hosein Lijan, Mohammad Mahdavi
Summary: A novel nanocatalyst, gamma-Fe2O3@SiO2(CH2)(3)-HPBM-Pd, was designed and synthesized for Mizoroki-Heck and Suzuki-Miyaura crosscoupling reactions, showing excellent activity and high reusability with a catalyst turnover number of 4600 in 10 sequential runs.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Applied
Kanticha Khomthawee, Nattaporn Nilada, Antika Homchuen, Pranorm Saejueng
Summary: The CS-EDTA-Pd catalyst was prepared by dissolving chitosan and EDTA in acetic acid, forming beads, adsorbing palladium(II), and reducing it to palladium(0) with ethanol reflux. The catalyst was characterized by various techniques. It was then tested in the Suzuki-Miyaura cross-coupling reaction and showed good catalytic activity. The catalyst is inexpensive, easy to prepare, and can be reused multiple times with only a slight loss in product yields.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Agriculture, Multidisciplinary
Jie Li, Yushi Yang, Zhijun Zhou, Shuofeng Li, Lin Hao, Weihua Liu, Zhi Wang, Qiuhua Wu, Chun Wang
Summary: A novel fluorine-functionalized triazine-based porous organic polymer (F-POP) was developed for the adsorption of aflatoxins. The F-POP demonstrated superior adsorption ability due to multiple interaction mechanisms, including hydrogen bond, F-O interaction, pi-pi interaction, F-pi interaction, and hydrophobic interaction. Furthermore, magnetic F-POP was prepared and used as a magnetic sorbent for the extraction of trace aflatoxins in peanut and rice samples.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Chemistry, Analytical
Yahuan Li, Yang Li, Qingyun Chang, Xiaohuan Zang, Shuaihua Zhang, Chun Wang, Zhi Wang
Summary: MXene-polyvinylpyrrolidone (MXene-PVP) was prepared by physically doping and spray drying to overcome the aggregation issue of MXene. The resulting MXene-PVP was carbonized to create a carbonized MXene-PVP (MXene-PVP-C), which was then immobilized on a stainless steel wire using the sol-gel approach to produce a solid-phase microextraction (SPME) fiber. This fiber was used to extract polycyclic aromatic hydrocarbons (PAHs) from tea beverages, and the extracted PAHs were detected using gas chromatography. Central composite design methodology was employed to investigate the main SPME parameters. Under optimized conditions, the method achieved low detection limits (0.03-0.15 μg/L) and quantification limits (0.10-0.50 μg/L) for the PAHs. The method exhibited good recoveries (78.6% to 122%) for the spiked PAHs in tea beverages, with low relative standard deviations (less than 8.2% for single-fiber and 9.6% for fiber-to-fiber).
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Zixuan Cai, Zhijun Zhou, Bin Zhao, Sicheng Ma, Lin Hao, Weihua Liu, Qianqian Wang, Zhi Wang, Qiuhua Wu, Chun Wang
Summary: In this study, novel magnetic hypercrosslinked polymers were successfully fabricated and applied for the enrichment of chlorophenols in environmental water, peach beverage, and honey samples. The method showed good linearity, low detection limits, and high recoveries, making it a promising alternative for the detection of chlorophenols in complex matrix samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Applied
Sichang Jiang, Zhi Li, Xiumin Yang, Min Li, Chun Wang, Zhi Wang, Qiuhua Wu
Summary: A novel hypercrosslinked polymer (API-HCP) was synthesized and showed high affinity for chlorophenols due to multiple interactions. An efficient solid phase extraction method coupled with high performance liquid chromatography (SPE-HPLC) was established using API-HCP as the adsorbent for sensitive detection of chlorophenols in water and honey samples.
Article
Chemistry, Applied
Jie Li, Bin Zhao, Lin Hao, Weihua Liu, Chun Wang, Zhi Wang, Qiuhua Wu
Summary: A magnetic hyper-crosslinked polymer (MHCP-TPE) was successfully prepared and used as a sorbent to adsorb and isolate aflatoxins from rice and sorghum samples. The method showed fast adsorption kinetics and good adsorption efficiency, making it suitable for the determination of trace levels of aflatoxins in cereal foods.
Article
Chemistry, Applied
Mingming Xu, Zhijun Zhou, Lin Hao, Zhi Li, Jie Li, Qianqian Wang, Weihua Liu, Chun Wang, Zhi Wang, Qiuhua Wu
Summary: Three novel hyper-crosslinked polymers with large specific surface area and excellent chemical stability were fabricated using heterocyclic phenyl-imidazole as monomer. These polymers were used as solid phase extraction adsorbent for sensitive determination of aflatoxins in rice samples. The established method provided wide linear range, low detection limit and satisfactory recovery, and the adsorption mechanism was explored. This work provides a powerful tool for simultaneous determination of aflatoxins in food grains with great application potential in aflatoxin monitoring.
Article
Computer Science, Hardware & Architecture
Xiaoyi Pang, Zhibo Wang, Zeqing He, Peng Sun, Meng Luo, Ju Ren, Kui Ren
Summary: Heterogeneous Model Aggregation (HMA) is an effective approach to integrate on-device models with different architectures and target tasks. However, existing methods neglect the privacy risks caused by the disclosure of learned features and the class bias issue in the aggregated model. To address these problems, we propose a response-based class-balanced HMA mechanism (CBHMA) that preserves privacy and mitigates class bias.
IEEE TRANSACTIONS ON DEPENDABLE AND SECURE COMPUTING
(2023)
Article
Computer Science, Information Systems
Liantao Wu, Peng Sun, Zhibo Wang, Yang Yang, Zhi Wang
Summary: Compressed sensing (CS) is a good option for user detection in grant-free non-orthogonal multiple access (NOMA) by exploiting the sparsity of user activity. Existing CS-based user detection schemes do not fully utilize temporal correlation of user activity and rely on known active user numbers. To address these issues, we propose a temporal correlation enhanced multiuser detection scheme that uses 1-bit memory to piggyback information and a cross validation based adaptive subspace pursuit (CVASP) algorithm. Simulation results show that our proposed mechanism achieves similar performance while eliminating the need for prior knowledge.
IEEE TRANSACTIONS ON MOBILE COMPUTING
(2023)
Article
Chemistry, Analytical
Linna Guo, Bin Zhao, Lijuan Wang, Qianqian Wang, Yangjuan An, Lin Hao, Weihua Liu, Zhi Wang, Qiuhua Wu, Chun Wang
Summary: Four novel hydroxyl-functionalized nanoporous organic frameworks (OH-NOP1, OH-NOP2, OH-NOP3 and OH-NOP4) were designed and fabricated for efficient adsorption of neonicotinoids. Among them, OH-NOP3 exhibited the highest affinity and adsorption performance. An effective method for extraction and preconcentration of neonicotinoids using OH-NOP3 as sorbent was developed.
Article
Clinical Neurology
Yi-Ming Huang, Ya-Hui Ma, Pei-Yang Gao, Zhi-Bo Wang, Liang-Yu Huang, Jia-Hui Hou, Lan Tan, Jin-Tai Yu
Summary: This study analyzed the link between plasma B2M and CSF AD biomarkers as well as cognition. The results showed that B2M levels were associated with cognitive impairment and changes in AD biomarkers. This suggests that B2M could be a potential biomarker for preclinical AD.
ALZHEIMERS RESEARCH & THERAPY
(2023)
Article
Computer Science, Artificial Intelligence
Song Han, Hongxin Ding, Shuai Zhao, Siqi Ren, Zhibo Wang, Jianhong Lin, Shuhao Zhou
Summary: Privacy-preserving federated learning is a promising approach for IoT in healthcare, and this article proposes two practical noninteractive federated learning schemes, HE-NFRT and Mask-NFRT, which can protect the privacy of data owners' training data, resist collusion attacks, and support strong verification.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2023)
Article
Biotechnology & Applied Microbiology
Zhibo Wang, Yongzhen Li, Xiang Gao, Jiangwa Xing, Rong Wang, Derui Zhu, Guoping Shen
Summary: In this study, UV mutagenesis was used to improve the ability of halophilic microorganisms to produce the compatible solute Ectoine. The mutated strain G(8)-52 showed positive effects on cellular growth, osmotic equilibrium, and exhibited higher Ectoine yields compared to the wild-type strain. These results suggest that continuous UV mutagenesis is a successful strategy for increasing Ectoine production, and the mutant strain G(8)-52 is suitable for large-scale fermentation applications.
INTERNATIONAL MICROBIOLOGY
(2023)
Article
Computer Science, Artificial Intelligence
Zhibo Wang, Jiayu Guo, Zhengming Hu, Haiqiang Zhang, Junping Zhang, Jian Pu
Summary: Trajectory prediction is crucial for autonomous driving, and our proposed Lane Transformer model achieves high accuracy and efficiency by using attention blocks instead of Graph Convolution Network (GCN) and optimizing it for deployment using TensorRT. Our model outperforms the baseline model in prediction accuracy by a factor of 10x to 25x on the Argoverse dataset and has the fastest inference time among all open source methods.
IEEE OPEN JOURNAL OF INTELLIGENT TRANSPORTATION SYSTEMS
(2023)
Article
Engineering, Electrical & Electronic
Zhibo Wang, Kaixin Liu, Jiahui Hu, Ju Ren, Hengchang Guo, Wei Yuan
Summary: Collaborative inference accelerates deep neural network inference by extracting representations at the device and making predictions at the edge server. However, it can lead to privacy leakage of sensitive attributes. In this paper, we propose AttrLeaks, an attack framework that exploits the vulnerability of privacy-preserving co-inference to decode uploaded representations into a vulnerable form and predict private attributes. Experimental results show that AttrLeaks outperforms existing methods in terms of attack success rate.
CHINESE JOURNAL OF ELECTRONICS
(2023)
Article
Computer Science, Hardware & Architecture
Jiahui Hu, Zhibo Wang, Yongsheng Shen, Bohan Lin, Peng Sun, Xiaoyi Pang, Jian Liu, Kui Ren
Summary: This paper proposes an Adaptive Privacy-Preserving Federated Learning (Adp-PPFL) framework that provides satisfactory privacy protection against gradient leakage attacks. It introduces a leakage risk-aware privacy decomposition mechanism and an adaptive privacy-preserving local training mechanism to improve model accuracy and convergence speed.
IEEE-ACM TRANSACTIONS ON NETWORKING
(2023)
