Article
Chemistry, Physical
Cristina Ruiz-Garcia, Miguel A. Gilarranz
Summary: Nitrogen-doped porous carbons were prepared using chitosan as a precursor, showing homogeneous nitrogen doping and a lamellar morphology. Catalysts with well-dispersed Pd nanoparticles were synthesized and tested for hydrodechlorination, demonstrating fast and total removal of 4-chlorophenol despite low metal content.
Article
Chemistry, Multidisciplinary
Khushboo S. Paliwal, Debashrita Sarkar, Antarip Mitra, Venkataramanan Mahalingam
Summary: Photothermal catalysts prepared by calcining Chitosan show excellent ability to convert epoxides into cyclic carbonates under mild reaction conditions, demonstrating high photothermal conversion efficiency and catalytic activity.
Article
Chemistry, Physical
Nisrine Hammi, Shuo Chen, Christophe Michon, Sebastien Royer, Abdelkrim El Kadib
Summary: This article introduces a method of using biomass waste as catalysts or catalytic supports. The research team used chitosan extracted from marine shellfish waste as a cheap source of carbon and nitrogen, along with other compounds, to successfully encapsulate nanosized copper particles. The resulting catalyst showed excellent catalytic activity in the hydrogenation reaction of unsaturated carbon-carbon bonds and heteroaryles.
MOLECULAR CATALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Peng Zhang, Qi Xu, Xiao-Mei Wang, Jia Feng, Chuan-Jun Lu, Yingzi Li, Ren-Rong Liu
Summary: The first enantioselective synthesis of N-N bisindole atropisomers via palladium-catalyzed construction of one indole skeleton is reported in this study. A wide variety of N-N axially chiral bisindoles were generated with good yields and excellent enantioselectivities through a cascade condensation/N-arylation reaction. The reaction mechanism and enantiocontrol were further investigated using density functional theory (DFT) calculations.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Analytical
Baojun Long, Yuanmeng Zhao, Peiyu Cao, Wen Wei, Yan Mo, Juejing Liu, Cheng-Jun Sun, Xiaofeng Guo, Changsheng Shan, Ming-Hua Zeng
Summary: The researchers designed a catalyst composed of single-atom Pt supported on Ni(OH)(2) nanoplates/nitrogen-doped graphene for constructing an electrochemical nonenzymatic glucose sensor. The catalyst exhibited low anode peak potential and high sensitivity, with excellent selectivity, short response time, and high stability. The improved performance of the catalyst was attributed to the stronger binding strength of glucose on the single-atom Pt active centers and their surrounding Ni atoms, as well as the fast electron transfer ability of the conductive graphene.
ANALYTICAL CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Laszlo Szabo, Xingtao Xu, Takeo Ohsawa, Koichiro Uto, Joel Henzie, Izumi Ichinose, Mitsuhiro Ebara
Summary: A novel ultrafine porous carbon nanofiber network was successfully fabricated using a biobased polymer as carbon precursor. The interconnected N-doped carbon structure in the nanofiber network leads to excellent charge storage characteristics, making it a promising material for high-performance energy storage devices.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Multidisciplinary
Wang Yao, Chuan-Jun Lu, Li-Wen Zhan, Yi Wu, Jia Feng, Ren-Rong Liu
Summary: In this study, a palladium-catalyzed enantioselective C-H activation method for pyrroles was reported, which successfully synthesized structurally diverse indole-pyrrole atropisomers with a chiral N-N axis, showing high yields and enantioselectivities. Furthermore, the kinetic resolution of trisubstituted N-N heterobiaryls with more sterically demanding substituents was also achieved. This versatile method enables the rapid and selective functionalization of pyrroles, facilitating the synthesis of valuable and complex N-N atropisomers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Meng Miao, Maolin Sha, Qiangqiang Meng
Summary: N-doping enhances the adsorption and charge of Pd, leading to higher catalytic activity, while also making it difficult for H to migrate on graphene due to the N doping. However, the N doping facilitates the overflow of H from Pd to graphene, reducing the energy barrier for migration. It is speculated that one migration path of H on N-doped graphene is through the Pd atom.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Nanoscience & Nanotechnology
Zheng Liu, Yanfei Zhu, Kuikui Xiao, Yali Xu, Yufan Peng, Jilei Liu, Xiaohua Chen
Summary: Designing low-cost, high-activity electrocatalysts with excellent stability is crucial for large-scale implementation of zinc-air batteries. The reported method for constructing nitrogen-doped carbon with carbon nanotubes and embedded Fe/Fe3C nanoparticles shows promising potential in the field of non-precious metal oxygen electrocatalysis. The catalyst materials achieved an energy density of 719.1 Wh kg(-1) and peak power density of 101.3 mW cm(-2) at a 50 mA cm(-2) discharge current density, with stable charge/discharge voltage gap over 200 cycles at a current density of 20 mA cm(-2).
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Pin-An Hsieh, Peng-Jen Chen, Lian-Ming Lyu, Sheng-Yu Chen, Mei-Chun Tseng, Mei-Ying Chung, Wei-Hung Chiang, Jeng-Lung Chen, Chun-Hong Kuo
Summary: Bismuth oxyhalides nanosheets can be utilized for CO2 reduction reaction, producing formic acid and hydrogen gas, with metallic Bi-0 atoms serving as catalytic sites for the hydrogen evolution reaction and CO2RR, while doped Pd ions help reduce the barrier of charge transfer.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Energy & Fuels
Wenhui Tian, Penggang Ren, Xin Hou, Zhengzheng Guo, Zhengyan Chen, Yanling Jin
Summary: A novel N-doped mesoporous carbon with excellent rate performance is fabricated through micellar induced chitosan self-assembly, followed by carbonization and activation. The resulting N-doped porous carbon exhibits high surface area and interconnected mesoporous structure, providing short pathways for electron and ion transfer, improved wettability, and enhanced ion adsorption capacity.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Maria Krystyna Rybarczyk, Karolina Cysewska, Recep Yuksel, Marek Lieder
Summary: This study presents an efficient synthetic method for producing highly microporous and N-doped nanostructures through the direct carbonization of chitosan biopolymer in the presence of salt eutectics. The use of eutectic mixture (ZnCl2-KCl) and chitosan allows for the easy manufacture of the microporous structure. The resulting material shows promising potential as a catalyst for supercapacitor and oxygen reduction reaction applications.
Article
Chemistry, Physical
Yi Liu, Ying Chen, Yunli Liu, Zewen Chen, Huan Yang, Zhongxiao Yue, Qing Fang, Yunfei Zhi, Shaoyun Shan
Summary: Solar energy is considered the cleanest, cheapest, and most sustainable energy source. By using Zn and N co-doped porous carbon nanosheets as catalysts and photothermal materials, the cycloaddition of CO2 can be driven efficiently with high yields. This approach offers recycling capability and exhibits high activity towards other epoxides.
JOURNAL OF CATALYSIS
(2022)
Article
Spectroscopy
Lili Sun, Hongmei Zhang, Yesheng Wang, Zhong Xiong, Xihui Zhao, Yanzhi Xia
Summary: N-doped carbon dots (N-CDs) were successfully synthesized and showed promising potential in fluorescence sensing and bacterial imaging applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Physical
Chaojie Cen, Wenjing Tang, Tonghui Zhao, Yun Song, Yun Yang, Quanlong Xu, Wei Chen
Summary: Synergistic catalysis provides a new approach to enhance the application of catalysts. In this study, a composite catalyst Mo-Pd@N-C was constructed to improve the oxygen reduction reaction (ORR). The Mo-Pd@N-C exhibited better performance than commercial Pt/C, with a higher half-wave potential and greater stability. This work highlights a novel method to prolong the catalysts' lifespan and improve their commercial prospects.
Article
Biochemistry & Molecular Biology
Wei-Han Hui, Yen-Lin Chen, Shu-Wei Chang
Summary: Crosslinking affects the mechanical behavior and tissue metabolism of collagen-based tissues. Aging and diabetes alter the crosslinking type and density, thus changing tissue properties. High-connectivity enzymatic crosslinking and advanced-glycation end-products result in uniform deformation under daily activity, while low-connectivity enzymatic crosslinking does not. High-connectivity model displays more sliding, while AGEs induce instability in structures near the binding sites.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Yao-Bin Ma, Xiao-Qiu Zhou, Wei-Dan Jiang, Pei Wu, Yang Liu, Shu-Wei Li, Ling Tang, Lu Zhang, Hai-Feng Mi, Lin Feng
Summary: Tea polyphenols (TPs) are an inexpensive feed additive that can protect the gill function of fish against Flavobacterium columnare (F. columnare) through various mechanisms, including suppression of oxidative stress, apoptosis, and inflammation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Yan-Jia Guo, Jing-Ru Pang, Yu Zhang, Zhong-Rui Li, Xiao-Lin Zi, Hong-Min Liu, Ning Wang, Li-Juan Zhao, Ya Gao, Bo Wang, Piet Herdewijn, Cheng-Yun Jin, Ying Liu, Yi-Chao Zheng
Summary: This study identifies the conjugation of NEDD8 to LSD1 and its impact on GC cells, revealing the significance of LSD1 neddylation in GC.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Review
Biochemistry & Molecular Biology
Geum-Jae Jeong, Fazlurrahman Khan, Nazia Tabassum, Young-Mog Kim
Summary: Vibrio species are motile gram-negative bacteria commonly found in aquatic environments. They can adapt to environmental fluctuations and develop protective mechanisms against host immune systems. Different types of sigma and anti-sigma factors play important roles in regulating gene expression and virulence in Vibrio species.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Zahra Mohammadbagheri, Behrooz Movahedi, Shaghayegh Saeedi, Abbas Rahmati
Summary: In this study, a reusable biobased composite hydrogel was successfully synthesized and used for the removal of Tl(I) from aqueous solutions. The hydrogel exhibited high adsorption capacity and thermal stability, and the adsorption process was found to be thermodynamically spontaneous. The results demonstrated that the hydrogel can be reused multiple times without significant loss of its adsorption capacity.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Iqra Batool, Muhammad Imran, Ayesha Anwar, Farhan Ahmed Khan, Afrah E. Mohammed, Ashwag Shami, Hafiz Iqbal
Summary: Enzyme immobilization on ZnO/SnO2 and ZnO/SnO2/SA nanocomposites was studied, and the catalytic and biochemical characteristics of the immobilized enzyme were investigated. The results showed that ZnO/SnO2 and ZnO/SnO2/SA nanostructures are suitable carriers for enzyme immobilization.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Elias Mosaffa, Dhruvi Patel, Nasim Amiri Ramsheh, Rishikumar Indravadan Patel, Atanu Banerjee, Hossein Ghafuri
Summary: In this study, a unique 3D bead structure of adsorbent, composed of bacterial cellulose microfilaments reinforced chitosan adorned with melamine 2D plates, was synthesized for anionic dye removal. The adsorbent showed high specific surface area and abundant functional groups, resulting in exceptional adsorption capacity. The characteristics and optimal conditions of the adsorbent were assessed and analyzed.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Carolina Gismene, Jorge Enrique Hernandez Gonzalez, Marilia de Freitas Calmon, Andrey Fabricio Ziem Nascimento, Angela Rocio Nino Santisteban, Felipe Antunes Calil, Alana Della Torre da Silva, Paula Rahal, Rejane Maira Goes, Raghuvir Krishnaswamy Arni, Ricardo Barros Mariutti
Summary: Mammaliicoccus sciuri, a bacterium of clinical and veterinary relevance, expresses the virulence factor Exfoliative Toxin C (ExhC), which binds specifically to desmoglein-1 (Dsg1) and plays a role in tissue integrity. This study investigates the necrotic activity of ExhC and identifies a variant lacking necrotic potential but retaining enzymatic activity through mutagenesis experiments and crystal structure determination.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Bibhas K. Bhunia, Ashutosh Bandyopadhyay, Souradeep Dey, Biman B. Mandal
Summary: Intervertebral disc degeneration is a major cause of chronic low back pain and disability. Researchers have developed a bioactive silk-based hybrid hydrogel system functionalized with decellularized human Wharton's jelly extracellular matrix as bioactive cues. The hydrogels mimic the rheological and mechanical properties of the native nucleus pulposus tissue and support cell viability, proliferation, and tissue maturation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Qun Zhang, Yonggan Yan, Zhao Li, Jing Du, Kai Zhang, Liguo Zhang, Ting Wang, Alberto Bianco, Shaohua Ge, Baojin Ma
Summary: A new crosslinking strategy has been devised to construct injectable sodium alginate hydrogels, which can be regulated for injectability and have great potential in biomedical applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Seong Eun Hong, Ji-Soo Lee, Hyeon Gyu Lee
Summary: The potential of multi-layer nanoemulsions for improving the cellular uptake, antioxidant activity, and in vitro bioaccessibility of alpha-tocopherol was examined. The results showed that the multi-layer nanoemulsions significantly enhanced the cellular uptake and antioxidant activity of alpha-tocopherol compared to free coumarin 6. Furthermore, the use of chitosan and dextran sulfate as wall materials in the multi-layer nanoemulsions led to even higher cellular uptake, in vitro bioaccessibility, and antioxidant activity of alpha-tocopherol.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Jingjing Yu, Yanhui Zhang, Ruoning Zhang, Yanxiang Gao, Like Mao
Summary: High internal phase emulsions (HIPEs) based on beeswax (BW) oleogels and octenyl succinic acid starch (OSA starch) were prepared by a simple one-step method. The results showed that oleogelation improved the stability and encapsulation capability of the HIPEs, which is significant for the development of novel healthy food.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Review
Biochemistry & Molecular Biology
Bi-Feng Yao, Xiu-Ju Luo, Jun Peng
Summary: The balanced and continuous fission and fusion of mitochondria, regulated by OPA1, are important for maintaining mitochondrial dynamics in cardiovascular disorders. Understanding the role of OPA1 in mitochondrial fusion can provide insights into the pathogenesis of cardiovascular diseases.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Review
Biochemistry & Molecular Biology
Gokul Paramasivam, Anandhavelu Sanmugam, Vishnu Vardhan Palem, Murugan Sevanan, Ananda Babu Sairam, Nachiappan Nachiappan, Buhyun Youn, Jung Sub Lee, Muthuchamy Nallal, Kang Hyun Park
Summary: Nanomaterials are being used to deliver therapeutic agents in living systems. Different nanotechnological applications such as immunosensors, immune assays, and drug delivery are being implemented using nanotechnology. Genomics plays a crucial role in selecting appropriate drugs for personalized cancer therapy. It helps in analyzing gene and protein expression, disease classification, and designing disease models. Delivering drugs to specific areas using nanoparticles is a challenging issue.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Jing Li, Wei Wang, Han Wu, Feng Peng, Hui Gao, Ying Guan
Summary: In this study, CMH-based CPF films were prepared and their thermal and barrier properties were successfully regulated. The tensile strength and water vapor barrier property of CPF films were significantly improved, making them promising for food packaging applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)