Article
Polymer Science
Franciele da Silva Bruckmann, Carlos Eduardo Schnorr, Theodoro da Rosa Salles, Franciane Batista Nunes, Luiza Baumann, Edson Irineu Mueller, Luis F. O. Silva, Guilherme L. Dotto, Cristiano Rodrigo Bohn Rhoden
Summary: This study reports on the adsorption of tetracycline using magnetic chitosan as the adsorbent. The highest adsorption capacity was achieved at pH 7.0, and the efficiency of the adsorbent depended on pH, initial concentration, and dosage. Ionic strength significantly affected the process. The Sips and Elovich models provided the best fit for the experimental data, indicating heterogeneous surface adsorption predominantly through chemical mechanisms. The adsorption of tetracycline was governed by hydrogen bonds and cation-pi interactions, and the incorporation of magnetite on the chitosan surface enhanced its removal efficiency. Thermodynamic parameters suggested a spontaneous and exothermic process. Magnetic chitosan proved to be effective in tetracycline removal even after multiple adsorption/desorption cycles.
Article
Engineering, Chemical
Wan Ting Tee, Jia En Yong, Jasmine Chua, Nicholas Yung Li Loh, Billie Yan Zhang Hiew, Suyin Gan, Lai Yee Lee
Summary: This research focused on the development of a phosphorus-doped 3D graphene oxide adsorbent with bentonite and carboxymethyl cellulose crosslinking (PG/BCC) for the removal of imipramine in wastewater. The effects of various factors on imipramine adsorption were examined and optimized using batch experiments and central composite design. The results showed that PG/BCC is a highly feasible and sustainable graphene-based adsorbent for the separation of imipramine from pharmaceutical wastewater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Chemistry, Applied
Tiantian Tang, Shurui Cao, Cunxian Xi, Zhiqiong Chen
Summary: A magnetically and recyclable multifunctional nanohybrid adsorbent was prepared by incorporating chitosan, graphene oxide, and ionic liquid, which showed enhanced adsorption capacity for alkaloids. The adsorbent could be potentially used for extracting illicit additives in food samples.
CARBOHYDRATE POLYMERS
(2021)
Article
Engineering, Environmental
Yan Chen, Zeguang Nie, Junkai Gao, Jiaqi Wang, Miaomiao Cai
Summary: In this study, a novel method for increasing the anti-hydrolytic ability and mechanical strength of traditional chitosan aerogel (CSA) was developed by bidirectional regeneration of chitosan and microcrystalline cellulose to synthesize chitosan-microcrystalline cellulose aerogel (CS-MCCA). Bentonite (BT) was introduced in the regeneration process to enhance the adsorption rate of CSA, leading to the development of an efficient adsorbent for Pb(II) removal, bentonite-chitosan-microcrystalline cellulose aerogel (BT-CS-MCCA). The bidirectional regeneration strategy of biomass resources presented a brand-new path for utilization in wastewater treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Polymer Science
Filippo Pinelli, Tommaso Nespoli, Filippo Rossi
Summary: Porous aerogels, formed by freeze-drying precursor hydrogels, are highly studied soft materials with key features like elasticity, swelling behavior, and micro/nanosized pores, suitable for various applications. Recent interest has focused on aerogels combining polymeric structures with graphene, enabling tuning of properties such as toughness and electrical conductivity. Chitosan graphene oxide aerogels were synthesized in this study, chemically characterized and mechanically tested, demonstrating high adsorption capacity for contaminants like anionic dyes.
Article
Green & Sustainable Science & Technology
Jiafu Shen, Yu Dai, Fan Xia, Xiaojin Zhang
Summary: Due to their high security and versatility, hydrogels have gained great interest in sustainable applications such as wastewater treatment and energy storage. However, their poor adsorption capacity and low conductivity have limited their sustainable application. In this study, nanocomposite hydrogels (PAAm/CS-EDTA/GO) were prepared by crosslinking polymerization of ethylene diamine tetraacetic acid (EDTA)-modified chitosan (CS) and graphene oxide (GO). The addition of lithium chloride (LiCl) improved the performance of the hydrogel by providing anti-freezing and anti-dehydration properties and enhancing the conductivity. The supercapacitor assembled using PAAm/CS-EDTA/GO/Li hydrogel electrolyte showed high capacitance and temperature tolerance.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2023)
Article
Multidisciplinary Sciences
Ali Azari, Mohammad Malakoutian, Kamyar Yaghmaeain, Neemat Jaafarzadeh, Nabi Shariatifar, Gholamabbas Mohammadi, Mahmood Reza Masoudi, Reza Sadeghi, Sanaz Hamzeh, Hossein Kamani
Summary: In this study, a magnetic NH2-MIL-101(Al)/chitosan nanocomposite (MIL/Cs@Fe3O4 NCs) was synthesized and successfully used for the removal of azithromycin (AZT) from aqueous solutions. The synthesized nanocomposite was characterized using various techniques, and the optimization of key factors in the AZT adsorption process was carried out using response surface methodology. The results showed that the optimized conditions led to high removal efficiency and adsorption capacity of AZT. The thermodynamic and kinetic analysis indicated that the adsorption process was spontaneous and endothermic in nature. The reuse of the nanocomposite and its performance under real conditions were also evaluated.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Environmental
Cao Yang, Yanmei Zhu, Jueqin Chen, Tian Wu, Jian Wang, Xiufang Zhao, Wei Sun, Hui Lin, Sihao Lv
Summary: In this study, tetracycline hydrochloride (TCH)-saturated MOF adsorbent was converted into an efficient catalyst for antibiotic degradation. The carbon matrix and doped nitrogen were found to play a crucial role in the degradation process.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Pharmacology & Pharmacy
Yevgeniy Kim, Zharylkasyn Zharkinbekov, Kamila Raziyeva, Laura Tabyldiyeva, Kamila Berikova, Dias Zhumagul, Kamila Temirkhanova, Arman Saparov
Summary: Chitosan, a biopolymer derived from chitin, has great potential for tissue regeneration and controlled drug delivery. It possesses qualities such as biocompatibility, low toxicity, and antimicrobial activity, making it attractive for biomedical applications. Chitosan can be fabricated into different structures, including nanoparticles, scaffolds, hydrogels, and membranes, which can be customized for specific outcomes. It has been shown to stimulate tissue regeneration and repair in various tissues and organs, and is an efficient carrier for medications, genes, and bioactive compounds.
Article
Polymer Science
AbdElAziz A. Nayl, Ahmed Abd-Elhamid, Wael A. A. Arafa, Ismail M. Ahmed, Ahmed A. El-Shanshory, Mohamed A. Abu-Saied, Hesham M. A. Soliman, Mohamed A. Abdelgawad, Hazim M. Ali, Stefan Braese
Summary: The graphene oxide@chitosan composite beads showed high adsorption capacity and fast removal of dyes from aqueous media, indicating great potential for practical applications.
Article
Biochemistry & Molecular Biology
Huimei Shan, Huinan Mo, Yunquan Liu, Chunya Zeng, Sanxi Peng, Hongbin Zhan
Summary: Graphene oxide chitosan composite (GOCS) is an environmentally friendly composite adsorbent that can adsorb heavy metals, but its efficiency for heavy metal adsorption is often low. Fe-Mn binary oxides (FMBO) have a high removal capacity of As(III), but suffer from poor regeneration. This study proposes a method of doping FMBO into GOCS to obtain a recyclable adsorbent (Fe/Mn-GOCS), which shows a high removal efficiency of As(III) in aqueous solutions. This study provides new insights into the efficient removal of heavy metals from aquatic environments using binary polymer composites modified by binary metal oxides.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Environmental Sciences
Hongxia Yu, Kun Zheng, Xiaoying Xu, Xiaowei Liu, Bin Zhao, Haitao Ding, Zhimin Yu, Chengxun Deng
Summary: In this study, a new ternary composite material was prepared by modifying graphene oxide with beta-cyclodextrin and dopamine hydrochloride for efficient adsorption of sulfonamides antibiotics. The material showed the best adsorption effect at pH=2, with adsorption kinetics following the pseudo-second-order kinetic model and adsorption equilibrium conforming to the Langmuir adsorption isotherm. The maximum adsorption capacity of the material for sulfamethoxazole and sulfadiazine was 144 mg.g(-1) and 152 mg.g(-1), respectively. The material exhibited good reusability and the dominant forces in the adsorption process were pi-pi electron conjugation and hydrogen bonding.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Monu Verma, Ashwani Kumar, Ingyu Lee, Vinod Kumar, Ju-Hyun Park, Hyunook Kim
Summary: In this study, a one-pot process was used to functionalize chitosan with graphene oxide and ethylenediaminetetraacetic acid for the simultaneous capture of toxic inorganic and organic contaminants from wastewater. The prepared adsorbent showed excellent adsorption capacity and reusability, making it a promising method for treating co-existing toxic contaminants in water.
ENVIRONMENTAL POLLUTION
(2022)
Article
Chemistry, Physical
Jing-Jing Shi, Yu-Wei Ge, Zhang-Hao Fan, Yang Li, Wei-Tao Jia, Ya-Ping Guo
Summary: This study developed a nacre-mimetic layered scaffold for the treatment of breast cancer bone metastases. The scaffold had appropriate mechanical strengths, excellent anti-tumor and pro-osteogenesis activities, and could avoid damage and promote bone tissue regeneration.
Article
Engineering, Chemical
Mai Lien Tran, Thi Tuong Van Tran, Ruey-Shin Juang, Chi Hieu Nguyen
Summary: In this study, chitosan (CS) and graphene oxide (GO) were combined to synthesize CS/GO composites with different GO contents. The combination of CS and GO not only improved the surface area by reducing agglomeration of GO sheets, but also significantly enhanced the adsorption capacity of cationic dye on CS. The Langmuir adsorption capacity of methylene blue (MB) reached 259.5 mg/g at pH 8 and 30 degrees C for the CS/GO12 material. The composite showed good adsorption-regeneration performance.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Chemistry, Physical
Ailimire Yilihamu, Bowei Ouyang, Peng Ouyang, Yitong Bai, Qiangqiang Zhang, Mengyao Shi, Xin Guan, Sheng-Tao Yang
Article
Engineering, Environmental
Xin Guan, Qun Li, Tusunniyaze Maimaiti, Suke Lan, Peng Ouyang, Bowei Ouyang, Xian Wu, Sheng-Tao Yang
Summary: MOF-199 exhibits toxicity and photosynthetic inhibitory properties towards pea plants, affecting seed germination and seedling growth, while increasing net photosynthetic rate but decreasing total photosynthetic capability. Additionally, the environmental hazards of MOF-199 particles are stronger than equivalent concentrations of Cu(NO3)(2), releasing Cu2+ and inducing oxidative stress.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Biophysics
Mengyao Shi, Suke Lan, Chun Zhang, Wenzheng Xiong, Qun Li, Tusunniyaze Maimaiti, Fangshi Liu, Chengzhuang Liang, Xian Wu, Sheng-Tao Yang
Summary: In this study, Cr3+/Pr3+doped zinc gallogermanate persistent luminescent nanoparticles (PLNPs) were successfully applied for fast tumor drainage lymph node imaging with high contrast. PLNPs showed low toxicity and high performance in identifying lymph nodes, making them a promising imaging reagent for oncological surgery.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Environmental Sciences
Peng Ouyang, Chengzhuang Liang, Fangshi Liu, Qian Chen, Ziqiao Yan, Junyao Ran, Shiyu Mou, Yue Yuan, Xian Wu, Sheng-Tao Yang
Summary: This study showed that reduced graphene oxide (RGO) has stimulating effects on nitrogen-fixing bacteria Azotobacter chroococcum, promoting cell growth and nitrogen fixation activity at certain concentrations, leading to increased soil nitrogen content. Additionally, RGO may benefit plant growth through enhancing indoleacetic acid production of A. chroococcum. These results highlight the positive environmental effects of graphene materials on nitrogen-fixing bacteria in the nitrogen cycle.
Article
Environmental Sciences
Huahui Yuan, Juncheng Li, Lejie Pan, Xin Li, Yue Yuan, Qinmei Zhong, Xian Wu, Jin Luo, Sheng-Tao Yang
Summary: This study investigates the particulate toxicity of UiO-66, a representative MOF material, on a model microorganism. The results show that UiO-66 nanoparticles have low toxicity and only cause mild mechanical damage to the fungi.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Review
Chemistry, Physical
Jiao Jiao, Yihua Li, Qi Song, Liujin Wang, Tianlie Luo, Changfei Gao, Lifen Liu, Shengtao Yang
Summary: This review systematically summarizes the features of various types of free radicals in advanced oxidation processes (AOPs) and their removal efficiency for pharmaceutical and personal care products (PPCPs). It also summarizes the operation conditions and reaction mechanisms of different free radicals, providing a quick understanding of AOPs for future researchers.
Article
Engineering, Environmental
Chengzhuang Liang, Qinmei Zhong, Lejie Pan, Fangshi Liu, Xin Li, Jinwei Yang, Yusen Ma, Junrou Zhou, Sheng-Tao Yang
Summary: Metal-organic frameworks (MOFs) are rapidly developed materials with fantastic properties and wide applications. However, their potential threats to the environment are highlighted. The influence of organic ligands on the environmental impacts of MOFs has not been revealed.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Yue-Rui Yuan, Qiang Liu, Deyu Wang, Yu-Dan Deng, Ting-Ting Du, Wen-Jing Yi, Sheng-Tao Yang
Summary: The key to gene therapy lies in the development of effective and biocompatible delivery systems. This study presents the design of a glutathione-activated aggregation-induced-emission (AIE) cationic amphiphilic lipid, QM-SS-KK, for nonviral gene delivery. QM-SS-KK exhibited efficient DNA compaction and fluorescence modulation properties, which could be activated by GSH. Liposomes composed of QM-SS-KK and DOPE showed high transfection efficiency, especially in the presence of serum, and outperformed the commercial transfection agent PEI25K. These findings highlight the potential of peptide and QM-based AIE lipids for gene delivery.
Review
Biochemistry & Molecular Biology
Yi Cai, Fangxin Luo, Yujun Guo, Feng Guo, Weilong Shi, Shengtao Yang
Summary: Zinc indium sulfide (ZnIn2S4) is a significant visible-light-responsive photocatalyst with excellent properties, but its low utilization of solar light and fast photoinduced charge carriers limit its applications. This review describes various modulation strategies for enhancing the near-infrared (NIR) photocatalytic performance of ZnIn2S4-based photocatalysts, including hybrid materials, bandgap engineering, up-conversion materials, and surface plasmon materials. The synthesis methods and mechanisms of NIR light-driven ZnIn2S4-based photocatalysts are also summarized.
Article
Materials Science, Multidisciplinary
Fangshi Liu, Suke Lan, Chun Zhang, Mengyao Shi, Xian Wu, Sheng-Tao Yang
Summary: The large surface area and porous structure of MOF materials provide binding sites for fluorescent moieties for bioimaging. In this study, we prepared a fluorescent MOF material Zn(BDC)-8HQ by modifying 8-hydroquinoline. Zn(BDC)-8HQ emitted strong fluorescence at 507 nm and had a hydrodynamic radius suitable for lymph node tracing. The low toxicity of Zn(BDC)-8HQ was confirmed by serum biochemical index and histopathological observations.
Article
Engineering, Environmental
Bowei Ouyang, Peng Ouyang, Mengyao Shi, Tusunniyaze Maimaiti, Qun Li, Suke Lan, Jin Luo, Xian Wu, Sheng-Tao Yang
Summary: MOF-199 showed toxicity to bacteria at high concentrations, leading to cell death associated with oxidative stress-induced membrane and DNA damage. The toxicity of MOF-199 was partially attributed to the released Cu2+ in the culture medium. Our results indicated low toxicity and environmental risks of MOF-199 to bacteria.
JOURNAL OF HAZARDOUS MATERIALS ADVANCES
(2021)
Article
Engineering, Environmental
Bowei Ouyang, Ailimire Yilihamu, Dong Liu, Peng Ouyang, Dongyan Zhang, Xian Wu, Sheng-Tao Yang
Summary: MWCNTs slightly inhibited the growth of nitrogen-fixing bacterium A. chroococcum and induced a small increase in death rate at high concentrations. Additionally, oxidative damage was observed at 0.5 mg/mL after 6 days of exposure, but the damage diminished after 14 days. However, MWCNTs did not impact the nitrogen fixation activity or soil nitrogen contents of A. chroococcum.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Xinyuan Sun, Mengyao Shi, Chun Zhang, Jinting Yuan, Min Yin, Shichao Du, Shuai Yu, Bowei Ouyang, Fumin Xue, Sheng-Tao Yang
Summary: In this study, fluorescent Ag-In-S/ZnS quantum dots (AIS/ZnS QDs) with red emission were developed for fast tumor drainage lymph node imaging in vivo. The AIS/ZnS QDs were shown to migrate efficiently to sentinel lymph nodes, enabling effective imaging within 10 minutes upon intratumoral injection. Overall, AIS/ZnS QDs demonstrated high performance as an imaging reagent for tumor drainage lymph nodes.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yitong Bai, Xian Wu, Peng Ouyang, Mengyao Shi, Qun Li, Tusunniyaze Maimaiti, Suke Lan, Sheng-Tao Yang, Xue-Ling Chang
Summary: Chemical functionalization can enhance the interaction between fullerene and proteins, affecting their bioactivity and toxicity. Better hydrophilic modification leads to reduced enzyme activity inhibition and changes in protein conformation, highlighting the importance of surface modification in nanomaterial applications.
ENVIRONMENTAL SCIENCE-NANO
(2021)
Article
Engineering, Environmental
Qiangqiang Zhang, Rui Shi, Qun Li, Tusunniyaze Maimaiti, Suke Lan, Ouyang Peng, Bowei Ouyang, Yitong Bai, Baowei Yu, Sheng-Tao Yang
Summary: The red emissive carbon quantum dots showed low toxicity and even slightly stimulated the growth of white rot fungus, with no significant impact on its decomposition activity. The fluorescence quenching of carbon quantum dots in the fungus implied biotransformation during incubation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
