Article
Engineering, Chemical
Luminita Ghimici, Marieta Nichifor
Summary: The study demonstrates that cationic polyelectrolytes with high charged groups content have a better efficacy in removing pesticides from synthetic wastewater. The charge neutralization mechanism plays a significant role in pesticide removal, and slightly lower optimal polycation doses are needed for lower pesticide concentrations.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Environmental Sciences
Luminita Ghimici, Claudiu-Augustin Ghiorghita, Maria-Magdalena Nafureanu
Summary: A new polyethyleneimine (PEI) derivative called TU9-PEI with 9% degree of substitution was synthesized and used as a flocculant in suspensions of fungicide formulations. The flocculation ability of TU9-PEI was determined by parameters such as settling time, polymer dose, and fungicide type and concentration. The results showed that TU9-PEI exhibited good removal efficiency for all investigated fungicides.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Polymer Science
Luminita Ghimici, Marieta Constantin, Maria-Magdalena Nafureanu
Summary: This article aimed to investigate the application of grafted pullulan derivatives as flocculating agents for the removal of pesticide formulations from wastewater. The results showed that these derivatives effectively remove pesticides under different conditions, and the mechanisms of pesticide removal were discussed.
Article
Engineering, Environmental
Nur Syahirah Mohamed Hatta, Shiew Wei Lau, Masahiro Takeo, Han Bing Chua, Priyanka Baranwal, Nabisab Mujawar Mubarak, Mohammad Khalid
Summary: BF01314, a novel soluble chitosan-like bioflocculant derived from Citrobacter youngae GTC 01314, exhibited strong flocculation activities in kaolin suspension and activated sludge, with a broad operating window and significant dewaterability improvement. The flocculation mechanisms were found to be governed by electrostatic charge patching and bridging, making BF01314 a potential candidate for suspended solids removal in water and wastewater treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Ramanjeet Kaur, Harsh Kumar, Meenu Singla
Summary: A series of imidazolium-based ionic liquids with varying side alkyl chain length were synthesized and their aggregation behavior in the presence of an amino acid was investigated. The addition of the amino acid was found to reduce the critical micelle concentration of the ionic liquids, and increasing the side chain length increased the surface activity.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Spectroscopy
Smita Verma, Velayutham Ravichandiran, Nihar Ranjan
Summary: A selective fluorescence sensor for carbonate ions has been developed in this study, which can rapidly detect low concentrations of carbonate ions. Experimental results demonstrate direct interaction between the sensor and carbonate ions, with potential implications for disease prevention and toxicity assessment.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Medicinal
Nadzirul Zamri, Nurul Nabila Suleiman, Norsyaqira Mohd Johar, Nur Syahidah Mohd Noor, Wei Lun Ang, Nazlina Haiza Mohd Yasin, Yusuf Nazir, Aidil Abdul Hamid
Summary: The use of chitosan as a flocculant has attracted attention due to its positive polymer properties and biodegradable and non-toxic nature. However, previous studies mainly focused on microalgae and wastewater treatment. This study provides valuable insights into the potential use of chitosan as an organic flocculant for harvesting lipids and DHA-rich Aurantiochytrium sp. SW1 cells. The results show a strong correlation between pH and harvesting efficiency, with the optimal flocculation achieved at a chitosan concentration of 0.5 g/L and pH 6. Culture age and chitosan molecular weight had no effect on flocculation efficiency, while higher cell density decreased the efficiency. This study highlights the potential of chitosan as an alternative method for harvesting thraustochytrid cells.
Article
Food Science & Technology
Raul Gonzalez-Dominguez, Ana Sayago, Angeles Fernandez-Recamales
Summary: High-quality wine vinegars with unique characteristics are produced in southern Spain under three Protected Designations of Origin (PDO). UV-Vis spectroscopy combined with multivariate statistical tools can effectively discriminate Spanish wine vinegars by geographical origin and predict their properties. This analytical method proves to be accurate and efficient for the authentication and traceability of vinegars.
Article
Chemistry, Physical
Qingli Zou, Yue Sun, Zhuojian Liang, Wanwan Wang, Yi-Chun Lu
Summary: Magnesium-sulfur batteries offer higher theoretical volumetric energy density and lower cost compared to lithium-sulfur batteries, but suffer from poor cycle life and low energy efficiency. By increasing polysulfide solubility with high-donor-number solvents like dimethyl sulfoxide (DMSO), the discharge capacity and sulfur overpotential can be improved, leading to higher performance and reversible cycling.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Narayan Sinha, Juan-Ramon Jimenez, Bjorn Pfund, Alessandro Prescimone, Claude Piguet, Oliver S. Wenger
Summary: By combining pi-donating amido with pi-accepting pyridine coordination units in a tridentate chelate ligand, a strong nephelauxetic effect was achieved in a homoleptic Cr-III complex, shifting its luminescence to the NIR-II spectral range. This study focuses on increasing metal-ligand bond covalence to shift the ruby-like E-2 emission of Cr-III to 1067 nm at 77 K, taking a fundamentally different approach from previous ligand design strategies.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Applied
Libi Chirug, Eden Eran Nagar, Zoya Okun, Avi Shpigelman
Summary: The study found that flavonoid compounds with a C2-C3 double bond interacted with pectin, while those without this double bond did not bind to pectin. Moreover, a pH of 2.5 significantly reduced binding, while the difference between pH 4.5 and 6.5 was small and structure-dependent.
FOOD HYDROCOLLOIDS
(2021)
Article
Environmental Sciences
J. McGinley, M. G. Healy, P. C. Ryan, P. -E. Mellander, L. Morrison, J. Harmon O'Driscoll, A. Siggins
Summary: This study investigates the adsorption characteristics of five herbicides onto raw and pyrolysed waste materials from an industrial setting. The results show that granulated activated carbon exhibits the highest herbicide removal efficiency and the adsorption process involves both physical and chemical mechanisms. The Freundlich model best describes the adsorption of herbicides onto heterogeneous surfaces.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Chemistry, Physical
J. Al Boukhari, Z. Bitar, A. A. Azab, R. Awad, M. Rekaby
Summary: In this study, low-cost chloride precursors were used to synthesize pure and codoped NiO nanoparticles through a facile coprecipitation method. The thermal, structural, morphological, optical, and magnetic properties of the samples were found to be strongly dependent on the reaction temperature and codoping. The codoped samples with a doping concentration higher than 4% showed linear M-H curves, indicating their ferromagnetic behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Natthapong Monarumit, Thanapong Lhuaamporn, Pornsawat Wathanakul, Chatree Saiyasombat, Wiwat Wongkokua
Summary: Recently, the concept of Fe3+-Ti4+ mixed acceptor states in the energy band gap of sapphire has been proposed as the cause of blue coloration. The blue color in sapphire is faded and turns yellow by beryllium heat treatment. It has been revealed as the color center in Be-treated yellow sapphires. The mechanism underlying these phenomena was explained and discussed in this study.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Narayan Sinha, Polina Yaltseva, Oliver S. Wenger
Summary: The nephelauxetic effect, which refers to the expansion of d-orbitals as a result of metal-ligand bond covalence, has been recognized for its importance in the design of new photoactive complexes using first-row transition metals. This effect can significantly impact the photophysical properties of 3d metal complexes in solution at room temperature. By exploiting the nephelauxetic effect, red luminescence in Cr-III and Mn-IV complexes has been shifted to the near-infrared spectral region, while charge-transfer excited states in Fe-II and Co-III complexes have been stabilized, improving their properties and application potential.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Applied
Xingran Kou, Dongdong Su, Fei Pan, Xiwei Xu, Qingran Meng, Qinfei Ke
Summary: This review provides a systematic discussion of the application of molecular dynamics (MD) simulations in aroma compounds (ACs)/cyclodextrins (CDs) inclusion complexes (ICs). It covers the establishment of the simulation process, parameter selection, model evaluation, and various application cases, summarizing the major achievements and challenges of this method.
CARBOHYDRATE POLYMERS
(2024)
Review
Chemistry, Applied
Haoyu Yu, Quanbin Zhang, Ammad Ahmad Farooqi, Jing Wang, Yang Yue, Lihua Geng, Ning Wu
Summary: Brown algae are rich in fucoidan, which has been found to have anti-cancer and anti-metastasis effects. Fucoidan inhibits tumor cell growth, proliferation, and metastasis, and also promotes immune responses in the tumor microenvironment.
CARBOHYDRATE POLYMERS
(2024)
Review
Chemistry, Applied
Liang Dong, Yanan Li, Hailin Cong, Bing Yu, Youqing Shen
Summary: Gene therapy is a revolutionary treatment that requires suitable vectors for protecting and releasing exogenous nucleic acids in target cells. Chitosan, as a non-viral vector, has gained attention due to its good biocompatibility and ability to load large amounts of nucleic acids. This paper summarizes the potential of chitosan and its derivatives as gene delivery vector materials, discusses factors influencing transfection efficiency, performance evaluation, ways to optimize infectious efficiency, and current research development directions. It also provides an outlook on the future prospects of chitosan.
CARBOHYDRATE POLYMERS
(2024)
Article
Chemistry, Applied
Ana Iglesias-Mejuto, Beatriz Magarinos, Tania Ferreira-Goncalves, Ricardo Starbird-Perez, Carmen Alvarez-Lorenzo, Catarina Pinto Reis, Ines Ardao, Carlos A. Garcia-Gonzalez
Summary: This study developed a novel processing strategy to manufacture drug-loaded and personalized aerogels with nanostructures. The aerogels demonstrated bioactivity and antimicrobial effects, promoting bone regeneration and preventing infections in bone tissue engineering.
CARBOHYDRATE POLYMERS
(2024)
Article
Chemistry, Applied
Zhenxu Shi, Dimei Yang, Yan Zhou, Xinyu Chen, Lin Gan, Jin Huang
Summary: This study proposes a micro-assembly method to improve the photoluminescent properties of crystalline cellulose nanocrystals (CNCs) by organizing them within a sub-micrometer-sized metal-organic framework and coating with TiO2. The TiO2 coating prevents CNC assembly breakdown and allows information to be revealed using screenprinted labels for anti-counterfeiting purposes.
CARBOHYDRATE POLYMERS
(2024)
Article
Chemistry, Applied
Xuejiao Liu, Bin Fu, Jierong Chen, Zhenyu Sun, Dongdong Zheng, Zhonghua Li, Bing Gu, Ying Zhang, Haojie Lu
Summary: Liver disease is a major cause of global mortality, and identifying biomarkers for diagnosing its progression is crucial for improving outcomes. Targeted mass spectrometry is a powerful tool for verifying biomarker candidates and clinical applications, particularly for glycoproteins translation. However, the limitation of analyzing only one sample per run has become apparent. In this study, a high-throughput intact N-glycopeptides quantification strategy was developed, allowing the validation of 20 samples per run with an average analysis time of 3 minutes per sample. The strategy was applied in a cohort of 461 serum samples and identified a panel of 10 IgG N-glycopeptides that have strong clinical utility in evaluating the severity of liver disease.
CARBOHYDRATE POLYMERS
(2024)
Article
Chemistry, Applied
Qian Wang, Hao Jiang, Hongli Zhang, Weiqiao Lu, Xiao Wang, Wenfeng Xu, Jia Li, Youjing Lv, Guoyun Li, Chao Cai, Guangli Yu
Summary: This study proposes a novel strategy of antibody-beta-glucan conjugates (AGC) to enhance the antitumor immune response to immune checkpoint blockade (ICB) therapy. AGC demonstrated powerful tumor suppression and promoted interaction between tumor cells and dendritic cells (DCs), thereby enhancing immunotherapeutic benefits.
CARBOHYDRATE POLYMERS
(2024)
Article
Chemistry, Applied
Chaeyeon Lee, Sojeong Lee, Sang Wook Kang
Summary: The study aims to enhance the properties of porous membranes by addressing the limitations associated with phase separation. By using cellulose acetate and citric acid, the researchers were able to fabricate membranes with improved mechanical strength and thermal stability. The cross-linking effect of citric acid resulted in a more uniform pore structure and higher porosity.
CARBOHYDRATE POLYMERS
(2024)
Review
Chemistry, Applied
Tejaswini Kolipaka, Giriraj Pandey, Noella Abraham, Dadi A. Srinivasarao, Rajeev Singh Raghuvanshi, P. S. Rajinikanth, Vidya Tickoo, Saurabh Srivastava
Summary: This review focuses on the design and application of polysaccharide-based hydrogel wound dressings, highlighting aspects such as biocompatibility, biodegradability, drug entrapment, moisturizing ability, swelling, and mechanical properties. Additionally, various crosslinking methods and recent developments in stimuli-responsive hydrogels are discussed.
CARBOHYDRATE POLYMERS
(2024)
Article
Chemistry, Applied
Anqi Xu, Nan Zhang, Shixing Su, Hongyu Shi, Daoqiang Lu, Xifeng Li, Xin Zhang, Xin Feng, Zhuohua Wen, Gengwu Ma, Mengshi Huang, Chi Huang, Yuqi Hu, Hao Yuan, Qinwen Liu, Daogang Guan, Jun Wang, Chuanzhi Duan
Summary: The study presents a one-pot radical polymerization method to fabricate a hydrogel with adhesive properties, which can effectively treat bacterial-infected diabetic wounds and accelerate wound healing.
CARBOHYDRATE POLYMERS
(2024)
Article
Chemistry, Applied
Montarop Yamabhai, Munthipha Khamphio, Thae Thae Min, Chai Noy Soem, Nguyen Cao Cuong, Waheni Rizki Aprilia, Krisanai Luesukprasert, Karsidete Teeranitayatarn, Atthaphon Maneedaeng, Tina R. Tuveng, Silje B. Lorentzen, Simen Antonsen, Paiboon Jitprasertwong, Vincent G. H. Eijsink
Summary: The study investigates the bioconversion of chitosan into soluble anti-inflammatory chitosan oligosaccharides (CHOS) using an enzyme. The results show that the generated CHOS have anti-inflammatory activity, but the magnitude of the activity depends on the substrate and production process. Different methods of dissolving chitosan also affect the properties of CHOS. The study highlights the importance of quality assurance in CHOS preparations.
CARBOHYDRATE POLYMERS
(2024)
Article
Chemistry, Applied
Wen Cao, Jiangping Wu, Xinya Zhao, Zixu Li, Jie Yu, Taili Shao, Xuefeng Hou, Lutan Zhou, Chunfei Wang, Guodong Wang, Jun Han
Summary: In this study, a water-soluble polysaccharide (PLP1) was successfully isolated and purified from Pueraria lobata. It was found that PLP1 was composed of specific glycosidic units and exhibited a better free radical-scavenging ability. Moreover, PLP1 effectively protected the liver against acute alcoholic liver disease (ALD) in mice.
CARBOHYDRATE POLYMERS
(2024)
Article
Chemistry, Applied
Ya Su, Yaqian Liu, Xueyan Hu, Yueqi Lu, Jinyuan Zhang, Wenbo Jin, Wang Liu, Yan Shu, Yuen Yee Cheng, Wenfang Li, Yi Nie, Bo Pan, Kedong Song
Summary: A 3D printed scaffold based on carbon dots-curcumin nano-drug release has been developed for drug delivery after breast cancer surgery. The scaffold showed effective inhibition of tumor growth, antibacterial activity, and promotion of wound healing, making it a promising approach for preventing tumor recurrence.
CARBOHYDRATE POLYMERS
(2024)
Article
Chemistry, Applied
Ekaterina Sokolova, Diane Jouanneau, Antonin Chevenier, Murielle Jam, Nathalie Desban, Pierre Colas, Elizabeth Ficko-Blean, Gurvan Michel
Summary: Carrageenans, a compound synthesized in red algae, have various biological properties and are valuable in the pharmaceutical and cosmetic industries. Their fine structure affects wound healing, oxidative processes, hemostasis, and inflammation. Enzymatic modification of carrageenans produces oligosaccharides that bind to natural human serum antibodies and specific antibodies, showing potential for therapeutic applications.
CARBOHYDRATE POLYMERS
(2024)
Article
Chemistry, Applied
Yan Shi, Miao Yu, Kaijin Qiu, Tiantian Kong, Chunjing Guo, Wenxue Zhang, Daquan Chen, Ming Kong
Summary: In this study, functionalized transfersomes were developed to co-deliver doxorubicin and 1MT towards primary tumors and tumor draining lymph nodes via transdermal administration using microneedles. The results showed that the nano-complexed microneedles exhibited a stronger suppression in tumor growth compared to the intravenous group.
CARBOHYDRATE POLYMERS
(2024)