JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2022
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IF 4.598
Mingyue Chu,Zhenyuan Bai,Di Zhu,Wenjing Chen,Guixin Yang,Jianjiao Xin,Huiyuan Ma,Haijun Pang,Lichao Tan,Xinming Wang
β-nicotinamide adenine dinucleotide (NADH), as vital coenzyme involved, is expected to be accurately detected in Clinical diagnosis and treatment. Polyoxometalates (POMs) have unique redox capacity with good electrochemical reversibility and fast electron transfer ability, which makes them become favorite materials for sensors. Here by using alternating electrodeposition and self-assembly techniques, Keggin-type polyoxometalates (PMo 11 V) were modified on glassy carbon electrodes with the help of polyallylamine hydrochloride (PAH), to construct a sensitive and stable electrochemical sensor for detection of NADH. The proposed (PAH/PMo 11 V) 4 /GCE was characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), cyclic voltammetry (CV) measurements and amperometrics method (i-t). The obtained electrode has high stability, good reproducibility, outstanding sensing capability for NADH, with a low detection limit of 1.9 × 10 -8 M, a wide linear range from 3.2 × 10 -7 to 8.2 × 10 -5 M and 1.1 × 10 -5 to 1.01 × 10 -3 M. This strategy, overcoming the drawbacks of POMs and solving the shortcomings that NADH requires high electrocatalytic potential, is simple in operation, low in cost, and could be widely used in electrochemisty field.
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DRUG DELIVERY
·
2021
·
IF 6.419
Wenwen Shen,Shuke Ge,Xiaoyao Liu,Qi Yu,Xue Jiang,Qian Wu,YuChen Tian,Yu Gao,Ying Liu,Chao Wu
In this study, we prepared a folic acid-functionalized SMMC-7721 liver cancer cell membrane (CM)-encapsulated paclitaxel nanocrystals system (FCPN) for hepatoma treatment. Transmission electron microscopy (TEM) characterization showed that FCPN was irregular spherical shapes with a particle size larger than 200 nm and a coated thickness of approximately 20 nm. In an in vitro release experiment, FCPN indicated a slowly release effect of paclitaxel (PTX). Cell experiments demonstrated that FCPN was taken up by SMMC-7721 cells and significantly inhibited the proliferation of SMMC-7721 cells, which illustrated that FCPN had good targeting ability compared with PN and CPN. According to the results of in vivo animal experiments, FCPN significantly inhibited tumor growth. Tissue distribution experiments proved that FCPN could accumulate significantly in tumor tissues, which further explained why FCPN had good targeting ability. These results clearly suggested that folate-functionalized homotypic CM bionic nanosystems might represent a very valuable method for liver cancer treatment in the future.
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BRAIN RESEARCH
·
2023
·
IF 2.9
Yong-Juan Gu,He-Ya Qian,Fang Zhou,Ling Zhang,Long Chen,Yu Song,Ya-Nan Chen,Hai-Long Zhang
Background Bone cancer pain (BCP) remains a clinical challenge due to the limited and side effects of therapeutic methods. Folic acid has been known as an FDA approved dietary supplement and proved to have an analgesic effect in neuropathic pain. Here we investigate the role and mechanism of folic acid in bone cancer pain of a rat model. Methods Walker 256 tumor cells were inoculated into the left tibia of rats to induce bone cancer pain model. Pain reflex were assessed by paw withdrawal threshold (PWT) response to Von Frey filaments and paw withdrawal latency (PWL) response to thermal stimulation. Folic acid was injected intraperitoneally to evaluate its analgesic effect in rats with bone cancer pain. Western blotting and qPCR were used to determine P2X2/3 receptor protein and mRNA levels in ipsilateral L4-6 dorsal root ganglion (DRG) and spinal dorsal horn (SDH). Results The PWT and PWL of rats with bone cancer pain were obviously decreased compared to the naïve and sham rats. Interestingly, continuous folic acid treatment significantly increased the PWT and PWL of rats with bone cancer pain. P2X2 and P2X3 receptors were clearly upregulated at both mRNA and protein expression in L4-6 DRG and SDH of rats with bone cancer pain. P2X2 and P2X3 receptors were mainly localized with CGRP (calcitonin gene-related peptide) or IB4 (isolectin B4) positive neurons in L4-6 DRG of rats with bone cancer pain. Notably, continuous folic acid treatment significantly reduced the expression of P2X2 and P2X3 receptors in L4-6 DRG and SDH of rats with bone cancer pain. Finally, intrathecal injection of A317491 (a selective antagonist of P2X2/3 receptors) markedly elevated the PWT and PWL of rats with bone cancer pain. Conclusion These results suggest that folic acid has an effective antinociceptive effect on bone cancer pain, which is mediated by downregulating P2X2/3 receptors in L4-6 DRG and SDH of rats with bone cancer pain. Folic acid may be a novel therapeutic strategy in cancer patients for pain relief.
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JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
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2023
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IF 5.4
Bi Lin,Ruiyi Dai,Zhenghao Liu,Wenjing Li,Jingwen Bai,Guojun Zhang,Ruichan Lv
Sentinel lymph node imaging is important for breast tumor staging and prediction of postoperative metastasis . However, clinical sentinel lymph node imaging has limitations such as low specificity, low contrast, and short retention time. The combination of bio-conjugates chemistry and luminescence technology may achieve the specific targeting effect. In this research, we designed a dual-targeting composite nanoprobe (∼50 nm) using a metal-organic framework (MOF) as carrier, loaded with lanthanide and ICG , and combined with hyaluronic acid and folic acid to detect metastatic lymph nodes. The coupled hyaluronic acid and folic acid can target to the tumor cells and dentritic cells with a dual-targeting effect. The FA-HA/ [email protected] nanoprobes can accumulate rapidly in sentinel lymph node with a stronger luminescence intensity (1.6 times) than that of normal popliteal lymph nodes in vivo , thus distinguish metastatic sentinel lymph node from normal effectively. Furthermore, due to the MOF carrier, the integrated lanthanide and near-infrared dye by transferring the absorbed excitation energy from ICG to Nd 3+ can enhance the signal-to-background ratio of NIR II imaging and have long retention time in vivo imaging. Finally, the FA-HA/ [email protected] @ZIF-8 nanoplatform increased the penetration depth and contrast of imaging, prolonged the retention time, and achieved the sentinel lymph nodes surgical resection. This study has important implications for lymph node imaging and surgical navigation.
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ACS Applied Nano Materials
·
2023
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IF 5.9
Fangling Li,Dongdong Cao,Wenyi Gu,Lin Cui,Zhongpeng Qiu,Zhiyong Liu,Dongmei Li,Xuhong Guo
Kaposi’s sarcoma-associated herpesvirus (KSHV) infection can cause a range of malignancies. The use of microRNA (miRNA) to combat viruses and inhibit tumor development has received increasing attention. However, it is difficult for free miRNA to enter into cells directly and to degrade easily. Therefore, the miRNA therapy alone often fails to achieve the expected effect. The selection of an appropriate delivery system for effective miRNA delivery and anti-KSHV is rarely considered. In this study, a β-cyclodextrin-grafted polyethylenimine (β-CD-PEI) was prepared by the chemical synthesis method, and folic acid was further coupled to a nanocarrier (β-CD-PEI-FA). Gel electrophoresis retardation experiments showed that β-CD-PEI-FA could combine with miR-34a-5p to form a drug-carrying nanocomplex β-CD-PEI-FA/miR-34a-5p, which effectively protected miR-34a-5p from serum and nuclease degradation. The particle size and potential were 203.13 ± 0.41 nm and 27.02 ± 0.72 mV, respectively, which were suitable for endocytosis. The cytotoxicity of the vector to KSHV-positive cells BCBL-1 and SK-RG cells was detected by the CCK-8 assay, which proved that the vector had good biosafety in vitro. Further cell experiments showed that β-CD-PEI-FA/miR-34a-5p not only had the ability to transport miR-34a-5p but also accelerated the G2-phase process of BCBL-1 and SK-RG cells and inhibited the proliferation of KSHV-infected cells. Most importantly, it can significantly reduce the expression levels of KSHV genes ORF26, K8.1A, and LANA. Therefore, the nanocarriers may be a promising antiviral drug delivery system with potential applications in the anti-KSHV therapy.
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ANALYST
·
2023
·Vol. 148
·期 11
·2459-2464
·
IF 4.2
Qianying Wang,Junyi Zhang,Ruo Yuan,Yun Xiang
The convenient and sensitive assay of antibiotic residuals is important for monitoring food safety and human health. Here, with a new self-constrained metal ion-dependent DNAzyme and hybridization chain reaction (HCR) signal amplifications, a simple label-free and highly sensitive aptamer-based fluorescent sensing assay for sarafloxacin is established. The target sarafloxacin molecules bind the aptamers in the duplex DNA probes to release the complementary strands, which cyclically activate the catalytic activity of the self-constrained DNAzymes to cut the substrate sequences to liberate many ssDNA strands. Subsequent HCR of two hairpins is initiated by these ssDNA strands for yielding long dsDNAs with lots of G-quadruplexes, which intercalate thioflavin T dye to generate drastically magnified fluorescence for non-label and sensitive sarafloxacin detection at the detection limit of 29 pM. Also, a highly selective assay of low levels of sarafloxacin in diluted milk samples has been demonstrated, showing the great potential of our approach for the development of versatile sensitive and convenient aptasensors for monitoring different antibiotics.
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DALTON TRANSACTIONS
·
2023
·Vol. 52
·期 19
·6551-6558
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IF 4
Wenjuan Dong,Lu Wang,Rongrong Zhang,Chaochao Wen,Ren Su,Xiaojuan Gong,Wenting Liang
Carbon dots are popular luminescent materials because of their excellent fluorescence properties, but the low quantum yield limits their application. Heteroatom doping is a more convenient and popular approach to increase the quantum yield of carbon dots. Here, novel N,S,P heteroatom co-doped carbon dots (N,S,P-CDs) were synthesized by a simple one-step hydrothermal method using m-phenylenediamine, L-cysteine and phosphoric acid as raw materials. The as-prepared N,S,P-CDs showed excellent photoluminescence properties with a fluorescence quantum yield of up to 41%, which greatly encourages their application in fluorescence sensing. The N,S,P-CDs exhibited good fluorescence stability under salt solution, xenon lamp irradiation and ultraviolet lamp irradiation except for a high sensitivity to extreme acidity. The fluorescence intensity of the N,S,P-CDs can be decreased by as much as 85% when the pH of the solution changes from 2.50 to 4.75, that is, a small fluctuation in pH can cause an intense response of the fluorescence of the N,S,P-CDs. Therefore, an excellent fluorescence sensing platform for accurately monitoring the pH of extreme acidity has been constructed. In addition, the N,S,P-CDs can be applied for quantitative detection of folic acid based on the strong quenching effect of folic acid on the fluorescence of the N,S,P-CDs. Good linearity was obtained in the concentration range of 4.85–82.45 μM, with a detection limit of 0.148 μM. The constructed sensing platform was used for the determination of folic acid in actual samples of orange juice, oatmeal and tablets with satisfactory results.
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ENERGY & FUELS
·
2021
·
IF 3.605
Yao Liu,Rulu Huang,Junhua Zhang,Liang He,Lincai Peng
Hydrogenation reduction of furfural (FAL) to furfuryl alcohol (FOL) confirms the requirement of sustainable development of society. The key to realize this transformation is to design a cost-effective and environmental catalyst with both Lewis acid and Lewis base sites. Here, we report the preparation of a multifunctional zirconium-based hybrid (Zr@PS-MSA) using Pennisetum sinese (PS), an annual natural lignocellulose, as a natural organic ligand. The prepared hybrid was used as an efficient catalyst for catalytic transfer hydrogenation (CTH) of FAL to FOL in isopropanol, and a high yield of up to 99.6% was accomplished by manipulating exposed versatile acid–base sites. Further studies indicated that Zr@PS-MSA possessed remarkable cycle stability and could be consecutively run at least 6 times without significant change in the catalytic activity. Mechanistic studies for CTH of FAL to FOL through isotopically labeled 2-propanol-d8 experiments evidently demonstrate FAL reduction via intermolecular hydrogen transfer. More gratifyingly, Zr@PS-MSA can also efficiently catalyze the various biomass-derived carboxides to corresponding alcohols, with yields of up to 92.4%.
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RENEWABLE ENERGY
·
2021
·
IF 8.001
Yuan Cheng,Yao Liu,Junhua Zhang,Rulu Huang,Yue Wang,Shuwan Cao,Liang He,Lincai Peng
The synthesis of porous material endowed with high Lewis acid-base sites for catalytic transfer hydrogenation (CTH) of carbonyl compounds to their corresponding alcohols has become a hot topic. Herein, a mesoporous metal-organic hybrid (Zr-FDCA) was prepared through facile self-assembly of biomass-based 2,5-furandicarboxylic acid (FDCA) and zirconium by using acetic acid as the modulator. Its catalytic activity was tested by CTH of furfural (FAL) to furfuryl alcohol (FOL) in isopropanol. The characterization results revealed that Zr-FDCA displayed higher Lewis acid-base sites due to the competition between acetic acid and FDCA , thus exhibiting an outstanding catalytic performance to give a FOL yield up to 100% at 150 °C in 3 h. Based on the experimental results, a kinetic model describing this reaction has been established and shown a good correlation between the measured and predicted data, which can provide an effective tool to monitor the process and tailor the process conditions to obtain the desired product. More gratifyingly, Zr-FDCA displayed good recyclability , which can be easily separated from the reaction mixture and repetitively used at least five runs without an obvious loss of activity.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2021
·
IF 8.128
Mengyue Zhu,Lei Guo,Zhongyi He,Riadh Marzouki,Renhui Zhang,Elyor Berdimurodov
N -doped carbon quantum dots (NCQDs) were synthesized by a hydrothermal method using folic acid and o-phenylenediamine as precursors. The inhibition behaviour of the NCQDs on Q235 steel in 1 M HCl solution was appraised through electrochemical impedance spectroscopy (EIS), potentiodynamic polarization curves (PDP), and surface analysis. The results demonstrated that the synthesized NCQDs had an effective anticorrosion effect on Q235 steel, and the corrosion inhibition efficiency of 150 mg/L NCQDs reached 95.4%. Additionally, the analysis of the PDP corrosion potential changes indicated that the NCQDs acted as a mixed corrosion inhibitor. Moreover, the NCQDs adsorbed onto the surface of steel by coordinating its electron-rich atoms with the iron metal to form a protective film, which slowed the dissolution reaction of the anodic metal to achieve corrosion inhibition. The adsorption mechanism of the NCQDs was consistent with Langmuir adsorption, including physical and chemical adsorption. Therefore, this work can inspire and facilitate, to a certain extent, the future application of doped carbon quantum dots as efficient corrosion inhibitors in pickling solutions.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2021
·
IF 5.279
Xiaoli Song,Yang Lu,Yongling Lu,Lishuang Lv
Acrolein (ACR) derives from the external environment and the endogenous metabolism of organisms. It has super-reactivity and can induce various diseases. We investigated the capacity of cyanidin-3-O-glucoside (C3G) and its degradants/metabolites to capture ACR during thermal processing or in vivo. Our results indicated that both C3G and its degradants, including phloroglucinaldehyde (PGA) and protocatechuic acid (PCA), could efficiently trap ACR to form adducts, such as C3G–ACR, C3G–2ACR, PGA–ACR, PGA–2ACR, PCA–ACR, and PCA–2ACR. Additionally, these adducts were detected in commercial canned red bayberry products. The adducts of C3G and its metabolites conjugated with ACR, such as C3G–ACR, C3G–2ACR, PGA–ACR, and 4-hydroxybenzoic-acid–ACR (4-HBA–ACR), were also detected in mice feces treated with C3G by oral gavage, where the adduct level was dose-dependent. A similar pattern was observed in tests on human consumption of red bayberry. In human urine, only PGA–2ACR and 4-HBA–ACR, were found, whereas C3G–ACR, C3G–2ACR, myricetin-3-O-rhamnoside–ACR (M3R–ACR), PGA–2ACR, 4-HBA–ACR and ferulic acid–ACR (FA–ACR) were detected in human feces following administration of red bayberry. Our results are the first demonstration that C3G and its metabolites can capture ACR in vitro and in vivo (mice and humans) and present a novel strategy, the development of C3G as a promising ACR inhibitor.
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JOURNAL OF NANOBIOTECHNOLOGY
·
2023
·Vol. 21
·期 1
·1-17
·
IF 10.2
Pan Qi,Li Ke,Kang Xueqin,Li Kaixuan,Cheng Zihe,Wang Yafei,Xu Yuye,Li Lei,Li Na,Wu Guilong,Yang Sha,Qi Shuo,Chen Guodong,Tan Xiaofeng,Zhan Yonghua,Tang Li,Zhan Wenhua,Yang Qinglai
Orthotopic advanced hepatic tumor resection without precise location and preoperative downstaging may cause clinical postoperative recurrence and metastasis. Early accurate monitoring and tumor size reduction based on the multifunctional diagnostic-therapeutic integration platform could improve real-time imaging-guided resection efficacy. Here, a Near-Infrared II/Photoacoustic Imaging/Magnetic Resonance Imaging (NIR-II/PAI/MRI) organic nanoplatform IRFEP-FA-DOTA-Gd (IFDG) is developed for integrated diagnosis and treatment of orthotopic hepatic tumor. The IFDG is designed rationally based on the core “S-D-A-D-S” NIR-II probe IRFEP modified with folic acid (FA) for active tumor targeting and Gd-DOTA agent for MR imaging. The IFDG exhibits several advantages, including efficient tumor tissue accumulation, good tumor margin imaging effect, and excellent photothermal conversion effect. Therefore, the IFDG could realize accurate long-term monitoring and photothermal therapy non-invasively of the hepatic tumor to reduce its size. Next, the complete resection of the hepatic tumor in situ lesions could be realized by the intraoperative real-time NIR-II imaging guidance. Notably, the preoperative downstaging strategy is confirmed to lower the postoperative recurrence rate of the liver cancer patients under middle and advanced stage effectively with fewer side effects. Overall, the designed nanoplatform demonstrates great potential as a diagnostic-therapeutic integration platform for precise imaging-guided surgical navigation of orthotopic hepatic tumors with a low recurrence rate after surgery, providing a paradigm for diagnosing and treating the advanced tumors in the future clinical translation application. Graphical Abstract
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危险品化学品经营许可证（带存储）