Article
Chemistry, Physical
Shankar Pandey, Sagun Jonchhe, Shubham Mishra, Tomoko Emura, Hiroshi Sugiyama, Masayuki Endo, Hanbin Mao
Summary: Cellular environments can alter biomolecular properties, and the effects of crowding cosolutes on macromolecules in nanoconfinement have been investigated. The study found that hexaethylene glycol (HEG) can split a telomeric G-quadruplex (GQ) into two populations with different effects, either through long-range dehydration or direct interactions. Increasing the number of HEG molecules unexpectedly decreased the stability of the GQ, indicating the dominant role of direct interactions over long-range stabilizing effects in hydrophilic nanocavities.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Majid Vafaeezadeh, Kristin Weber, Anna Demchenko, Philipp Losch, Paul Breuninger, Andrea Losch, Michael Kopnarski, Sergiy Antonyuk, Wolfgang Kleist, Werner R. Thiel
Summary: A new method for synthesizing a Janus periodic mesoporous organosilica material (JPMO) is introduced, where the material is capable of forming stable Pickering emulsions. This bifunctional material may find widespread applications in various fields related to material science and catalysis.
CHEMICAL COMMUNICATIONS
(2021)
Article
Biochemistry & Molecular Biology
Ahlem Meziadi, Navid Zuberi, Hendrick W. de Haan, Marc A. Gauthier
Summary: This study reveals that the inefficiency of bioconjugation reactions, such as protein PEGylation, is caused by the excluded volume effect (EVE) between methoxy poly(ethylene glycol) (mPEG) and proteins. The researchers found that this EVE leads to the self-assembly of proteins and reactive mPEG into separate protein-rich and mPEG-rich domains. By adding unreactive low-molecular weight mPEG as a co-solvent, the association between the larger protein and reactive mPEG can be promoted, resulting in improved reaction efficiency.
Article
Environmental Sciences
Kokila Thirupathi, Subramani Rajesh, Santhamoorthy Madhappan, Lalitha Gnanasekaran, Loganathan Guganathan, Thi Tuong Vy Phan, Seong-Cheol Kim
Summary: The incorporation of active functional groups into the mesoporous organosilica hybrid materials is efficient for various applications. In this study, a newly designed mesoporous organosilica adsorbent was prepared using diaminopyridyl groups bridged-(bis-trimethoxy)organosilane (DAPy) precursor by using Pluronic P123 as structure directing template via sol-gel co-condensation method. The synthesized DAPy@MSA NPs showed selective adsorption of Cu2+ ions from the aqueous medium by metal-ligand complex coordination.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Applied
A. S. Eremina, Yu Kargina, A. Yu Kharin, D. Petukhov, V. Yu Timoshenko
Summary: A one-step procedure using polyethylene glycol (PEG) coating during grinding in a planetary ball mill has been proposed to stabilize mesoporous silicon nanoparticles in aqueous solutions. The nanoparticles were found to have a size of 50-100 nm, preserved nanocrystallinity and mesopores, and remained stable in aqueous solution for at least 24 hours. This PEGylation method offers a way to control the physical properties and stability of mesoporous silicon nanoparticles for biomedical applications.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Agricultural Engineering
Yuxi Yan, Jiao Yang, Zhongyang Zhu, Boqiang Jin, Rencheng Zhu, Shunyi Li
Summary: The study found that adding 7.5% PEG-600 significantly improved the toluene removal efficiency of the biofilter, with a maximum elimination capacity of 152 g/(m3?h). Additionally, the introduction of PEG-600 enhanced the structural stability of the biofilm and increased the abundance of Pseudomonas and Steroidobacter in the microbial community.
BIORESOURCE TECHNOLOGY
(2021)
Article
Medicine, Research & Experimental
Hae Sung Kang, Niluka Wickramaratne, Loren K. Liebrecht, Martin J. Mangino
Summary: This study demonstrates that the use of polyethylene glycol-20k IV solution can effectively resuscitate and support brain dead organ donors, while reducing complications.
BIOMEDICINE & PHARMACOTHERAPY
(2022)
Article
Chemistry, Multidisciplinary
Nabanita Pal, Young Sunwoo, Jae-Seo Park, Taeyeon Kim, Eun-Bum Cho
Summary: A new category of porous silica and organosilica nanostructures was developed in a facile method using two different pentablock copolymer templates in weakly acidic aqueous-ethanol media. Various analytical techniques were used to analyze the well-developed mesostructures with high surface areas and thermal stability up to 400 degrees C.
Article
Chemistry, Physical
Geert Watson, Nithin B. Kummamuru, Sammy W. Verbruggen, Patrice Perreault, Maarten Houlleberghs, Johan Martens, Eric Breynaert, Pascal van der Voort
Summary: This study explores the use of hydrophobic periodic organosilica nanoparticles for hydrogen storage as clathrate hydrates. The surface decoration with promoter agents enhances the formation and growth kinetics of clathrate hydrates, resulting in an increase in hydrogen storage capacity. These findings are of significant importance for the development of hydrogen clathrates in industrial applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Plant Sciences
Hanifeh Seyed Hajizadeh, Sahar Azizi, Farzad Rasouli, Volkan Okatan
Summary: This study found that silicon dioxide nanoparticles (SiO2-NPs) improved drought tolerance in Damask rose plants by regulating protein and osmolyte synthesis, enhancing membrane stability and photosynthetic parameters. Furthermore, SiO2-NPs also increased the activity of antioxidant enzymes, reducing lipid peroxidation and H2O2 concentration.
Article
Plant Sciences
Ying Qi, Lingling Ma, Muhammad Imran Ghani, Qiang Peng, Ruidong Fan, Xiaojing Hu, Xiaoyulong Chen
Summary: The study found that drought stress has a significant impact on the growth and physiological indices of passion fruit. Drought stress induced by PEG can significantly decrease fresh weight, chlorophyll content, and root vitality, while increasing the contents of soluble protein, proline, and malondialdehyde. The activities of antioxidant enzymes showed an increasing trend and then a decreasing trend, with the highest value at the sixth day of drought stress. Among all the stress treatments, 20% PEG had the most significant effect on passion fruit seedlings.
Article
Chemistry, Multidisciplinary
Imran Ozer, Garrett Kelly, Renpeng Gu, Xinghai Li, Nikita Zakharov, Parul Sirohi, Smita K. Nair, Joel H. Collier, Michael S. Hershfield, Angus M. Hucknall, Ashutosh Chilkoti
Summary: Protein therapeutics, especially those with PEG decoration, face challenges of short half-life and immunogenicity. The authors developed a poly(oligo(ethylene glycol) methyl ether methacrylate) (POEGMA) conjugate to improve the stability and immunogenicity of PEGylated proteins. The uricase-POEGMA conjugate demonstrated enhanced pharmacokinetics and reduced immunogenicity compared to traditional PEGylated proteins.
Article
Polymer Science
Tzu-Yu Peng, Pei-Yun Tsai, May-Show Chen, Yuichi Mine, Shan-Hua Wu, Chin-Yi Chen, Dan-Jae Lin, Chung-Kwei Lin
Summary: MBG synthesized via spray pyrolysis with various molecular weight of PEG and acid additions showed amorphous and mesoporous structure, with higher molecular weight of PEG improving the mesoporous structure and bioactivity of MBG. Optimized MBG was prepared with suitable concentration of PEG and CH3COOH, showing the best in vitro bioactivity and mesoporous structure.
Article
Biotechnology & Applied Microbiology
Fangman Chen, Fan Zhang, Yanbin Wang, Jiahui Peng, Lei Cao, Qian Mei, Mingfeng Ge, Li Li, Meiwan Chen, Wen-fei Dong, Zhimin Chang
Summary: In this study, mesoporous organosilica nanoparticles (MON) coated with biomimetic cancer cell membrane were developed for controlled release of cisplatin and reduction inactivation, aiming to enhance platinum-based chemotherapy.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Dengheng Zheng, Liansheng Tang, Yuxi Wang, Ruihong Liu
Summary: By combining the PEG solution dialysis method with vacuum pressure, this study effectively improves the dehydration effect of sludge and expands the influence range of dialysis. The use of X-ray CT to analyze sludge microstructure under different vacuum pressures provides insights into the dewatering mechanism of this method, enhancing the potential for market-oriented and industrial application of sludge dialysis dewatering.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Multidisciplinary
Qian Wu, Yubo Cui, Guifeng Xia, Jinlong Yang, Shuming Du, Xinhong Xiong, Li Yang, Dong Xu, Xu Deng, Jiaxi Cui
Summary: Passive daytime radiative cooling (PDRC) technology, while promising for global spacing cooling, faces limitations in practical application due to reduced cooling effectiveness caused by wear and dirt contamination. Researchers have developed a renewable armor structure using fluorinated hollow glass microspheres to enhance the anti-fouling and cooling properties of PDRC coatings. The coatings exhibit high solar reflectance and thermal emittance, leading to significant temperature reduction below ambient temperature.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Qiang Bei, Bei Zhang, Kaifeng Wang, Shiming Zhang, Guichuan Xing, Clement Cabanetos
Summary: The power conversion efficiency (PCE) of organic solar cells (OSCs) has reached 20% in recent years, thanks to the advantages of organic photoactive materials. Benzothiadiazole (BT) has attracted significant research attention as a building block of OSCs. OSCs based on BT structure have shown diversity, and the increasing PCE values indicate a promising future for OSCs. This review analyzes the progress made in the last decades, focusing on effective BT small-molecules and BT polymers for OSCs. The structure-property relationships, donor-acceptor matching criteria, and morphology control approaches are discussed. The remaining challenges and a personal perspective on the future advancement of OSCs are summarized.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Rong He, Dandan Tang, Ningge Xu, Heng Liu, Kun Dou, Xuejun Zhou, Fabiao Yu
Summary: Nasopharyngeal carcinoma (NPC) is a common malignant tumor of the head and neck, with a high incidence in China and Southeast Asian countries. In this study, a novel near-infrared fluorescent probe, SNAFL-GSH, was designed and synthesized for the detection of glutathione (GSH). The probe showed selective detection of GSH and the ability to distinguish normal and cancer cells. It has great potential for application in the diagnosis and evaluation of NPC.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Zhukang Guo, Baijiang Jin, Yile Fang, Lian Jin, Song Li, Yan Deng, Zhu Chen, Hui Chen, Yuanying Zhang, Rabia Usman, Nongyue He
Summary: This study isolated primary cells that can be stably passaged from spontaneous tumors of genetically engineered pancreatic ductal adenocarcinoma model mice and used an autonomously developed automated screening instrument for efficient nucleic acid aptamer screening. The obtained aptamers were affinity verified at the cellular level. The study also investigated the impact of cell growth environment difference on the recognition ability of aptamers and confirmed the targeting ability and drug loading ability of the aptamer.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Zhongshan Yang, Qiqi Zhang, Hui Song, Xin Chen, Jiwei Cui, Yanhui Sun, Lequan Liu, Jinhua Ye
Summary: Methane chemistry is a significant area of research in catalysis. Converting methane into value-added chemicals is desirable but challenging due to its high C-H bonding energy and lack of pi bonding or unpaired electrons. Photocatalytic partial oxidation of methane to liquid oxygenates is a promising technology for achieving high efficiency and selectivity under mild conditions. The choice and activation of oxidants are crucial for its performance.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Peng Shan, Jing Liao, Jiayi Li, Chengyan Wang, Jie Zhou, Linqiang Mei, Yunlu Dai, Qiang Wang, Wenyan Yin
Summary: This study reports an oral radioprotectant Gel@GYY that combines a gelatin-based hydrogel and a pH-responsive hydrogen sulfide donor. Gel@GYY has excellent adhesion and sustained release properties, allowing it to release H2S in the gastrointestinal tract and effectively scavenge free radicals induced by radiation. It also reduces inflammation and has biodegradable properties.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Lu Liu, Ziyi Liu, Jingnan Cui, Guiling Ning, Weitao Gong
Summary: The development of new metal-free heterogeneous catalysts has been the subject of extensive research. In this study, a new Troger's base (TB)-derived porous organic polymer (POPs) was designed and prepared by integrating multifunctional monomers. The resulting polymer, which combines the advantages of pillar[5]arene macrocycle and TB moiety, exhibited enhanced catalytic performance in Knoevenagel condensation and CO2 conversion, serving as an effective metal-free catalyst. This work provides a new strategy for fabricating metal-free heterogeneous catalysts based on macrocyclic POPs.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Leyong Zhou, Changyin Yang, Weitao Dou, Tongxia Jin, Haibo Yang, Lin Xu
Summary: This review summarizes the application of micro/nanofluidic techniques in constructing supramolecular assemblies of different scales, and highlights the advantages of these techniques over conventional synthesis methods. Furthermore, it emphasizes the potential of micro/nanofluidic systems in improving our understanding of supramolecular self-assembly processes.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Yanchao Jin, Suixiaochen Chen, Peiwen Huang, Xiongjian Chen, Chun-Yan Lin, Li-Ping Li, Xiao Chen, Rui Ding, Jianxi Liu, Riyao Chen
Summary: In this study, magnesium and coconut shell carbon were used to disinfect water by adsorbing copper(II) and converting dissolved oxygen to hydrogen peroxide through Mg corrosion. The copper was enriched on the carbon surface and efficiently catalyzed the hydrogen peroxide to inactivate E.coli. The process showed promising disinfection performance both in laboratory experiments and real wastewater treatment.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Haihong Lai, Zehong Chen, Hao Zhuo, Yijie Hu, Xuan Zhao, Jiwang Yi, Hongzhi Zheng, Ge Shi, Yifan Tong, Ling Meng, Xinwen Peng, Linxin Zhong
Summary: By altering the pyrolysis route of cellulose nanofiber, the structural defects of carbon aerogels can be reduced, leading to improved compressibility and stress retention, as well as higher stress sensor sensitivity and temperature coefficient.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Lina Guo, Jinsong Ding, Wenhu Zhou
Summary: Bacteria-based tumor therapy has resurfaced due to the revolution of tumor immunotherapy, offering unique solutions for traditional tumor treatments. Bacteria with active tropism can selectively colonize tumor sites and suppress tumor growth through various mechanisms, making them attractive tools for tumor treatment. This critical review introduces recent advances in bacteria-based tumor therapy, including bacterial properties, their benefits for tumor therapy, anti-tumor mechanisms, challenges, and future perspectives.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Lan Liang, Chuanbin Wang, Xukai Lu, Yunan Sun, Beibei Yan, Ning Li, Guanyi Chen, Li'an Hou
Summary: This study investigates the interactions between phenol and benzaldehyde in the ECH process through experiments and theoretical calculations. The results show that phenol can accelerate the conversion of benzaldehyde, while benzaldehyde inhibits the conversion of phenol. The research provides a theoretical basis for the application of ECH in practical bio-oil upgrading.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Pengcheng Fan, Yuhao He, Junan Pan, Ning Sun, Qiyu Zhang, Chen Gu, Kang Chen, Weinan Yin, Longlu Wang
Summary: This study focuses on the recent progress in hydrogen evolution reaction (HER) based on photothermal effect. It introduces the main pathways of photothermal conversions applied in H2 evolution, summarizes the functions of the photothermal effect, and presents a method to improve the catalytic system through thermal means. The study also discusses the challenges and outlook in this promising area.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Leiduo Lai, Hongyu Zhou, Yichen Hong, Mengfan Luo, Yang Shi, Heng Zhang, Zhaokun Xiong, Gang Yao, Bo Lai
Summary: In this study, a facile ammonia reduction strategy was proposed and a novel FeVO3-x catalyst was synthesized for the activation of peroxymonosulfate (PMS) to degrade the pharmaceutical carbamazepine (CBZ). The results showed that the system could rapidly degrade CBZ and generate various active species involved in the degradation process.
CHINESE CHEMICAL LETTERS
(2024)
Article
Chemistry, Multidisciplinary
Tangxin Xiao, Xiuxiu Li, Liangliang Zhang, Kai Diao, Zheng-Yi Li, Xiao-Qiang Sun, Leyong Wang
Summary: This study presents the construction of a supramolecular light harvesting system based on sequential energy transfer. The system demonstrates tunable fluorescence emission through self-assembly of polymers into nanoparticles, achieving efficient two-step light harvesting.
CHINESE CHEMICAL LETTERS
(2024)