NEW JOURNAL OF CHEMISTRY
·
2021
·Vol. 45
·期 37
·17576-17583
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IF 3.591
Lijun Xu,Lu Yang,Aihua Liu
One-pot synthesis of Mn3O4 nanorods is reported for the first time by the oxidation of manganese metal resulting from reducing Mn2+ by NaBH4 at room temperature. The resultant Mn3O4 nanorods were 10–70 nm in width and up to hundreds of nanometers in length, and were very stable in aqueous solution. The Mn3O4 nanorods can oxidize H2O2 under acidic conditions quickly accompanying their decomposition. Using 3,3′,5,5′-tetramethylbenzidine (TMB) as a competitive chromogenic substance, colorimetric methods were developed for the sensitive detection of H2O2 and glucose. The methods exhibited a linear range of 2–100 μM with a limit of detection (LOD) of 1.7 μM for detecting H2O2, and a linear range of 5–200 μM with a LOD of 4.4 μM for detecting glucose. The application in analyzing glucose in human serum samples demonstrates its practicability.
研究领域:
分析化学
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纳米材料科学
·
生物医学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2018
·
IF 5.091
Zhiwei Lu,Wanlin Dai,Baichen Liu,Guangquan Mo,Junjun Zhang,Jiaping Ye,Jianshan Ye
In this work, we report a facile and green strategy for one pot and in-situ synthesis of a dandelion-like conductive polyaniline coated gold nanoparticle nanocomposites (Au@PANI). The Au@PANI was characterized by SEM, TEM, XRD, TGA, FTIR, UV–vis and conductivity measurement, respectively. Newly-designed Au@PANI materials possessed a significantly high conductivity and strong adsorption capability. Thus, the Au@PANI modified glassy carbon electrode (GCE) was utilized for construct a novel electrochemical sensor for the simultaneous assay of Pb 2+ and Cu 2+ using square wave anodic stripping voltammetry (SWASV). Under the optimized conditions, an excellent electrochemical response in the simultaneous of Pb 2+ and Cu 2+ with detection limit of 0.003 and 0.008 μM (S/N = 3), respectively. Moreover, the prepared sensors realized an excellent reproducibility, repeatability and long term stability, as well as reliable practical assays in real water samples. Besides, the possible formation mechanism and sensing mechanism of Au@PANI nanocomposites have been discussed in detail. We believe this study provides a novel method of fabrication of noble metal nanoparticles decorated conducting polymer materials for the electrochemical sensing applications.
研究领域:
材料科学
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分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CRYSTENGCOMM
·
2021
·Vol. 23
·期 29
·5116-5123
·
IF 3.545
Jiye Wang,Yazhou Qin,Qiaocui Shi,Luhong Wen,Lei Bi
The controllable preparation of crystals is a prerequisite for exploring their shape-dependent physicochemical properties. Herein, AgCl crystals with different morphologies including octahedron, trapezohedron (TPH), 12-pod and hexapods with mace pods were successfully prepared by a one-pot synthesis method. In the preparation process, ethylene glycol (EG) was used as a solvent and AgNO3 was used as a precursor of Ag+. In particular, the ionic liquid poly(diallyldimethylammonium chloride) (PDDA) not only acted as a Cl− ion precursor but also as a morphology-controlled stabilizer. We further explored the effects of temperature, ligand and precursor concentration on AgCl crystal growth. Moreover, we investigated the effect of Cl− concentration on the morphology of AgCl by adding different amounts of NaCl. We found that under the condition of the lower concentrations of Cl−, {111}-bound octahedral AgCl crystals will transform into TPH enclosed with the {311} facet as the concentration of Cl− ions increases. However, at medium concentrations of Cl−, {111}-bound octahedral AgCl crystals will transform into 3D 12-pod AgCl crystals as the concentration of Cl− ions increases. Under the condition of higher concentrations of Cl−, {111}-bound octahedral AgCl crystals will transform into hexapods with mace pods AgCl crystals as the concentration of Cl− ions increases. According to the experimental results, we proposed the growth mechanism of AgCl microcrystals. This work not only provides a new method for the synthesis of AgCl crystals with a tunable shape, but also helps to understand the crystal growth mechanism.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
DESALINATION
·
2024
·
IF 8.3
Lijun Gao,Tianming Gao,Jiuying Feng,Shaohong Mo,Yanbei Guo,Pingping Guo,Shiyun Pan,Yuqing Cheng,Qian Yang
Currently, antiscalants used in cooling water are expected to be environmental-friendly, good scale inhibitive, fluorescence tracing, and industrial-friendly. Aliphatic biodegradable photoluminescent polymers (BPLPs) synthesized from citric acid , aliphatic diols , and various amino acids are fluorescent polymers containing heteroatom six-membered conjugated ring chromophores . Their cross-linked BPLPs have potential for use as implant or device materials, and vivo bioimaging probes. However, so far, no one has found that BPLPs can be used as efficient antiscalants for cooling water. In this work, we demonstrate a facile one-pot microwave-assisted synthesis of BPLPs from cost-effective materials. The products were characterized by Fourier transforms infrared spectroscopy , 1 H and 13 C nuclear magnetic resonance spectroscopy , gel permeation chromatography , and fluorescence spectroscopy . Thus prepared BPLPs can be directly used as a novel type green fluorescent antiscalant without further purification. They have an excellent calcium phosphate inhibition efficiency that can reach 98.6 % with a dosage of 25 mg·L −1 in the static scale inhibition test at 80 °C.
研究领域:
材料科学
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环境工程
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工业应用
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2024
·
IF 7.1
Xiaoli Zhou,Jinhong Deng,Zhe Li,Yun Cheng,Jie Zhou,Min Jiang,Weiliang Dong
Conversion of PET waste into carbon dots (CDs) is an attractive approach to plastic pollution control. However, the preparation of red–yellow CDs is still challenging, and the preparation methods are complex. In this study, a one-pot solvothermal method was developed for the preparation of CDs from PET waste. Through nitrogen source and solvent screening, multicolor (blue–red) CDs with high quantum yield (QY) were prepared. The reaction temperature and catalyst dosage significantly influence the production yield and QY of the CDs. The optimized CD showed a relative yield of 42.7%, a high QY of 47.8%, and a red photoluminescence color. The morphology, crystal structure, surface chemistry, and optical performance of CDs were characterized. The red and yellow fluorescence was mainly due to the molecular state mechanism. White light-emitting diodes with cool and warm white light and a high color rendering index were constructed using yellow and red CDs.
研究领域:
材料科学
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环境科学
·
光电
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2014
·Vol. 38
·期 7
·3166-3171
·
IF 3.159
Picheng Gao,Hongmin Ma,Tao Yan,Dawei Fan,Lihua Hu,Bin Du,Qin Wei
A facile route was proposed to synthesize mulberry-like gold nanospheres (MGNS) uniformly deposited on graphene nanosheets (GNs). Aniline was used as the reducing agent of both tetrachloroaurate and graphene oxide (GO). GO was partially reduced to GNs and acted as a support of the MGNS. The influence of the reaction time, reaction temperature and aniline concentration on the morphology of the MGNS were investigated. The resulting MGNS–GNs composites were characterized by transmission electron microscopy, scanning electron microscopy, X-ray diffraction spectroscopy, ultraviolet-visible spectroscopy, Fourier transform infrared spectroscopy and electrochemical techniques. The formation mechanism of the MGNS–GNs was proposed based on the contrast experiments. The results illustrated that GO plays a key role in the uniform distribution of the MGNS and polyaniline is responsible for the formation of the MGNS. Compared with GO, the MGNS–GNs showed an enhanced photoelectrochemical property, which has potential application in the fields of sensors and energy.
研究领域:
材料科学
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纳米技术
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电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF ORGANIC CHEMISTRY
·
2023
·
IF 3.6
Yi Li,Yicen Ge,Rui Sun,Xiao Yang,Shipeng Huang,Huajian Dong,Yunyao Liu,Haodan Xue,Xiaoyan Ma,Haiyan Fu,Zeqin Chen
A one-pot cascade reaction for 2,3-dihydropyridinone synthesis was accomplished with 3-fluoro-2-iodo-1-methylpyridinium triflate as the halogen bond catalyst. The desired [4+2] cycloaddition products, bearing aryl, heteroaryl, alkyl, and alicyclic substituents, were successfully furnished in 28–99% yields. Mechanistic investigations proved that a strong halogen-bonding interaction forged between the iodopyridinium catalyst and imine intermediate was essential to dynamically masking the vulnerable C–I bond on the catalyst and accelerating the following aza-Diels–Alder reaction.
研究领域:
有机化学
·
催化化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanoscale
·
2015
·Vol. 7
·期 40
·16874-16879
·
IF 7.394
Jianyu Chen,Jun Chen,Yi Li,Weixin Zhou,Xiaomiao Feng,Qingli Huang,Jian-Guo Zheng,Ruiqing Liu,Yanwen Ma,Wei Huang
Coating nickel onto copper nanowires (Cu NWs) by one-pot synthesis is an efficient approach to improving the oxidation resistance of the nanowires. Because Ni is much less conductive than Cu, it is of great importance to understand the relationship between the thickness of the Ni coating layer and the properties of NWs. Here we demonstrate one-pot synthesis of Cu–Ni core–shell NWs with a tunable Ni thickness by simply varying the Cu and Ni mole ratio in the precursor. We have observed that an increase in Ni thickness decreases the aspect ratio, surface smoothness and network conductivity of the resulting NWs. However, Cu–Ni NWs with a thicker Ni layer display higher oxidation temperature. The optimal Cu–Ni NWs, which were prepared using a Cu2+/Ni2+ molar ratio of 1/1, have a Ni-layer thickness of about 10 nm and the onset oxidation temperature of 270 °C. The derived transparent conductive films present a transmittance of 76% and a sheet resistance of 300 Ω sq−1. The flexible heater constructed from such high quality Cu–Ni NW films demonstrates effective performance in heating and defrosting.
研究领域:
材料科学
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纳米技术
·
表面工程
✓ 已验证
DOI
PubMed
高影响因子
RSC Advances
·
2018
·Vol. 8
·期 17
·9293-9298
·
IF 2.936
Hongcheng Peng,Weihong Qi,Haofei Wu,Jieting He,Yejun Li,Haipeng Xie
CuPt nanodendrites have special electrocatalytic performance due to their unique morphologies and structures. In this work, we report a facile and one-pot synthesis of highly branched and dispersed CuPt nanodendrites with a size of about 22 nm and Pt/Cu ratio of 2 : 1. X-ray photoelectron spectra indicate a Pt-rich surface of the prepared CuPt nanodendrites. The combination of a highly branched structure with a Pt-rich shell would be very beneficial for catalytic properties, which was confirmed by electrochemical tests towards MOR. A systematic study on morphology evolution of the products and understanding of their growth mechanism was carried out using the effects of reaction time and reducing agents.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2022
·Vol. 12
·期 43
·27963-27969
·
IF 4.036
Ling-Na Han,Kai-Qiang Wang,Zi-Ning Ren,Xue Yang,Xiao Duan,Sasirekha Krishnan,Abinaya Jaisankar,Jeong-Hui Park,Khandmaa Dashnyam,Wujie Zhang,José Luis Pedraz,Seeram Ramakrishna,Hae-Won Kim,Chang-Feng Li,Li-Hua Song,Murugan Ramalingam
In this study, we report a one-pot synthesis and enzyme-responsiveness of polyethylene glycol (PEG) and glutamic acid (Glu)-based amphiphilic doxorubicin (DOX) prodrug nanomicelles for cancer therapeutics. The nanomicelles were accomplished by esterification and amidation reactions. The nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) data confirmed the structure of nanomicelles. The DOX-loaded nanomicelles showed a DLS-measured average size of 107 nm and excellent stability in phosphate-buffered saline (PBS) for 7 days. The drug loading and cumulative release rates were measured by ultraviolet-visible (UV-vis) spectrophotometry at 481 nm. The cumulative release rate could reach 100% in an enzyme-rich environment. Further, the therapeutic efficiency of nanomicelles to cancer cells was determined by cell viability and cellular uptake and distribution using HeLa cells. The cell viability study showed that the DOX-loaded nanomicelles could effectively inhibit the HeLa cell proliferation. The cellular uptake study confirmed that the nanomicelles could be effectively ingested by HeLa cells and distributed into cell nuclei. Based on the collective experimental data, this study demonstrated that the synthesized nanomicellar prodrug of DOX is a potential candidate for cancer therapeutics.
研究领域:
药物科学
·
癌症研究
·
纳米技术
·
药物递送系统
✓ 已验证
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2022
·Vol. 46
·期 21
·10458-10469
·
IF 3.925
Cai Zhang,Li Zhou,Jing Zhang,Rui Dai,Pengrui Zhuang,Zhaoxiang Ye
Spectral computed tomography (CT) imaging agents are the key to spectral CT imaging with an unprecedented signal-to-noise ratio in vivo. However, there is still extreme lack of high-performance contrast agents. Herein, we present a facile and green strategy for the fabrication of uniform flower-like Bi2S3 nanoparticles (NPs) for spectral CT imaging and photothermal therapy in vivo for the first time. High-quality Bi2S3 NPs are obtained by simply heating the mixture of Bi(NO3)3 and glutathione in ethylene glycol without the need for adding toxic agents and inert gas protection. The proposed Bi2S3 NPs exhibit good monodispersity, high Bi content (60%), favorable water solubility, strong absorption in near-infrared windows, good biocompatibility and excellent CT and spectral CT imaging abilities due to the high K-edge energy of Bi (91 keV). Not only the accurate gastrointestinal tract spectral CT imaging but also the evaluation of the effect of intestinal obstruction surgery was achieved using the Bi2S3 NPs. Then effective tumor photothermal therapy in vivo was realized. This study proposes a facile and green method for the synthesis of high-quality Bi2S3 NPs, and proves the promising potential of Bi2S3 nanomaterial as a high-performance spectral CT imaging agent.
研究领域:
材料科学
·
医学成像
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纳米技术
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL SCIENCES
·
2024
·Vol. 136
·期 3
·1-11
·
IF 1.7
Zhao Zhicai
A series of 1-carbonyl-1 H -indoles were prepared by 2-iodoanilines and calcium carbide in a one-pot reaction catalyzed by recyclable10% Pb/C, resulting in the corresponding substituted indoles in good yields. This protocol offers several advantages, including the utilization of sustainable, low-cost calcium carbide, an easy-to-handle acetylene source, and recyclable Pb/C catalysts. Graphic abstract The synthesis of a series of 1-carbonyl-1 H -indoles were prepared by 2-iodoanilines and calcium carbide in a one-pot reaction catalyzed by 10% Pb/C, resulting in the corresponding substituted indoles in good yields. This protocol offers several advantages, including the utilization of sustainable, low-cost feedstock, an easy-to-handle acetylene source, and recyclable Pb/C catalysts.
研究领域:
有机化学
·
绿色化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）