CCL

CCL 2019 30( 02) Published: 22 February 2019

Reviews

Dynamic materials fabricated from water soluble pillar[n]arenes bearing triethylene oxide groups

Tangxin Xiao, Ling Zhou, Lixiang Xu, Weiwei Zhong, Wei Zhao, Xiao-Qiang Sun, Robert B. P. Elmes

CCL 2019 Vol. 30 (02): 271-276 DOI:10.1016/j.cclet.2018.05.039

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Recent advance on dynamic materials fabricated from water soluble pillar[n]arenes with triethylene oxide groups was summarized.

Advances in green colloidal synthesis of metal selenide and telluride quantum dots

Dong Yao, Yi Liu, Jing Li, Hao Zhang

CCL 2019 Vol. 30 (02): 277-284 DOI:10.1016/j.cclet.2018.07.012

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This review summarized the green approaches toward colloidal chemical synthesis for metal selenide and telluride quantum dots.

Progress on the development of DNA-mediated metal nanomaterials for environmental and biological analysis

Jingtai Fu, Zhuomin Zhang, Gongke Li

CCL 2019 Vol. 30 (02): 285-291 DOI:10.1016/j.cclet.2018.10.031

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This review summarized the recent progress on the synthesis, morphologies and properties of DNA-mediated metal nanomaterials including nanoparticles and nanoclusters. Moreover, their applications to environmental and biological analysis were introduced with the developing prospect in analytical chemistry.

Advances in the study of the host-guest interaction by using coronene as the guest molecule

Jianqiao Li, Yuxin Qian, Wubiao Duan, Qingdao Zeng

CCL 2019 Vol. 30 (02): 292-298 DOI:10.1016/j.cclet.2018.05.037

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This review supplied direct insight of host-guest molecule system by using COR as the guest molecule.

Communications

Semi-interpenetrating polymer networks toward sulfonated poly(ether ether ketone) membranes for high concentration direct methanol fuel cell

Xupo Liu, Yunfeng Zhang, Shaofeng Deng, Cuicui Li, Jiaming Dong, Jiaying Wang, Zehui Yang, Deli Wang, Hansong Cheng

CCL 2019 Vol. 30 (02): 299-304 DOI:10.1016/j.cclet.2018.09.021

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Semi-IPNs were constructed by forming the crosslinking networks via the reaction between BPPO and diamine cross-linkers to overcome the dimensional swelling and methanol-permeation issues of SPEEK.

Structure, rheology and electrospinning of zein and poly(ethylene oxide) in aqueous ethanol solutions

Ce Shi, Shixia Xi, Yingchun Han, Hao Zhang, Jingsheng Liu, Yunqi Li

CCL 2019 Vol. 30 (02): 305-310 DOI:10.1016/j.cclet.2018.07.010

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This study provided a clear correlation of the structure and rheology of solutions with the morphologies of EFM made up of proteins and polymers.

Selective modification of two-dimensional MoS₂ nanosheets by polymer grafting

Hang Bian, Xuejian Zhang, Dexin Huang, Ning Zhang

CCL 2019 Vol. 30 (02): 311-313 DOI:10.1016/j.cclet.2018.07.002

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We reported on the direct creation of polymer brushes on two-dimensional molybdenum disulfide via the formation of C-S bond by UV-induced photopolymerization. The functionalization can be manipulated in forming polymer grafts on one side or both sides of the nanosheets.

Cloride-derived copper electrode for efficient electrochemical reduction of CO₂ to ethylene

Tian Qin, Yao Qian, Fan Zhang, Bo-Lin Lin

CCL 2019 Vol. 30 (02): 314-318 DOI:10.1016/j.cclet.2018.07.003

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Transformation of CuCl into cubic structure of bi-phasic Cu₂O-Cu (CB-Cu) enhanced production of ethylene from electrochemical reduction of CO₂.

Nanostructured NiMoO₄ as active electrocatalyst for oxygen evolution

Xinyue Zhao, Jing Meng, Zhenhua Yan, Fangyi Cheng, Jun Chen

CCL 2019 Vol. 30 (02): 319-323 DOI:10.1016/j.cclet.2018.03.035

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Hydrothermally synthesized NiMoO₄ nanorods exhibit considerable electrocatalytic properties for the oxygen evolution in alkaline condition. The performance enhancement of ternary NiMoO₄ over binary oxide NiO and MoO₃ is attributed to the inclusion of Mo that promotes the pre-redox reaction of Ni to form active Ni species.

Recyclable Fenton-like catalyst based on zeolite Y supported ultrafine, highly-dispersed Fe₂O₃ nanoparticles for removal of organics under mild conditions

Xuanyu Yang, Xiaowei Cheng, Ahmed A. Elzatahry, Jinyang Chen, Abdulaziz Alghamdi, Yonghui Deng

CCL 2019 Vol. 30 (02): 324-330 DOI:10.1016/j.cclet.2018.06.026

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The active Fenton-like catalyst, obtained by highly dispersed Fe₂O₃ nanoparticles in size of 5 nm on the surface of zeolite Y, shows the excellent degradation efficiency to phenol higher than 90% under the mild conditions of room temperature and neutral solution, and the catalyst can be easily recovered with stable catalytic activity for 8 cycles.

Co-culture of tumor spheroids and monocytes in a collagen matrix-embedded microfluidic device to study the migration of breast cancer cells

Tianying Yuan, Dan Gao, Shangfu Li, Yuyang Jiang

CCL 2019 Vol. 30 (02): 331-336 DOI:10.1016/j.cclet.2018.07.013

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A 3D co-culture microfluidic device was developed to study the effects of ECM stiffness and TAMs on tumor cells migration.

Cucurbit[7]uril/CuCl promoting decomposition of 4-nitrobenzenediazonium in aqueous solution

Hongxing Xu, Qiaochun Wang

CCL 2019 Vol. 30 (02): 337-339 DOI:10.1016/j.cclet.2018.03.014

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The host-guest complex between cucurbit[7]uril and 4-nitro-benzendiazonium is decomposed into a nitrobenzene/4-nitrophenol mixture in a high total yield in the presence of CuCl.

Synthesis and insecticidal bioactivities of 2,3-dihydroimidazo[1,2-a]pyridin-5(1H)-one derivatives

Letian Zhang, Kun Liu, Xusheng Shao, Zhong Li, Xiaoyong Xu

CCL 2019 Vol. 30 (02): 340-344 DOI:10.1016/j.cclet.2018.09.012

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A novel synthesis of 2,3-dihydroimidazo[1,2-a]pyridin-5(1H)-one, and insecticidal derivatives were described.

Design and synthesis of self-included pillar[5]arene-based bis-[1]rotaxanes

Mengjun Wang, Xusheng Du, Huasheng Tian, Qiong Jia, Rong Deng, Yahan Cui, Chunyu Wang, Kamel Meguellati

CCL 2019 Vol. 30 (02): 345-348 DOI:10.1016/j.cclet.2018.10.014

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Two strategies for the design of new pillar[5]arene-based mechanically self-interlocked molecules (MSMs) are reported here. The first strategy is based on the construction of an intermediate pseudo[1]rotaxane followed by the desired bis-[1]rotaxane. The other one is based on the construction of the desired bis-[1]-rotaxane directly via a condensation reaction through host-guest interactions between a mono-functionalized pillar[5]arene and the axle. This compound has interesting self-assembly properties in methanol and some extended applications of this compound will be reported in the near future.

Open tubular capillary electrochromatography with block co-polymer coating for separation of β-lactam antibiotics

Liping Zhao, Juan Qiao, Hongyi Zhang, Fangnan Xie, Li Qi

CCL 2019 Vol. 30 (02): 349-352 DOI:10.1016/j.cclet.2018.03.007

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Unique block co-polymer P(MAn-St-NIPAm) has been successfully synthesized by reversible addition fragmentation chain transfer radical polymerization protocol. Based on the tunable hydrophobic/hydrophilic properties of the block co-polymer, a new open tubular capillary electrochromatography (OT-CEC) system has been constructed with the prepared block co-polymer as the coating and applied in analysis of β-lactam antibiotics in serum samples.

Electroformation and collection of giant liposomes on an integrated microchip

Zhenyu Wang, Chaoxiong Wu, Ting Fan, Xianwei Han, Qiong Wang, Jincan Lei, Jun Yang

CCL 2019 Vol. 30 (02): 353-358 DOI:10.1016/j.cclet.2018.12.001

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In this work, a microchip was developed for the electroformation and collection of giant liposomes. On the chip, a reactor chamber array was expressly designed so that the influences of multiple parameters could be explored rapidly and efficiently to screen for a suitable condition. Furthermore, in order to overcome the difficulty in the collection of giant liposomes, a tailor-made collection chamber was also integrated on this chip.

Zirconyl schiff base complex-functionalized MCM-41 catalyzes dehydration of fructose into 5-hydroxymethylfurfural in organic solvents

Yongdi Xie, Wenwen Yuan, Yi Huang, Chunyan Wu, Haijun Wang, Yongmei Xia, Xiang Liu

CCL 2019 Vol. 30 (02): 359-362 DOI:10.1016/j.cclet.2018.03.026

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A heterogeneous catalyst was prepared by immobilizing Zirconyl Schiff base complex on the modified MCM-41 and used in the conversion of fructose to HMF. A higher HMF yield was obtained when fructose as raw material under optimal reaction conditions.

Double [3+2] cycloaddition of nitrile oxides with allenoates: Synthesis of spirobidihydroisoxazoles

Wei Sun, Feng Jiang, Honglei Liu, Xing Gao, Hao Jia, Cheng Zhang, Hongchao Guo

CCL 2019 Vol. 30 (02): 363-366 DOI:10.1016/j.cclet.2018.04.024

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The double [3+2] cycloaddition of allenoates with nitrile oxides was presented. The reaction worked well under mild reaction conditions to give the spirobidihydroisoxazole in moderate to excellent yields with excellent diastereoselectivities.

Effect of high hydrostatic pressure on prebiotic peptide synthesis

Jianxi Ying, Peng Chen, Yile Wu, Xu Yang, Kaili Yan, Pengxiang Xu, Yufen Zhao

CCL 2019 Vol. 30 (02): 367-370 DOI:10.1016/j.cclet.2018.06.015

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Here we reported the high hydrostatic pressure, as a key factor of deep-sea environment conditions, promoted the peptide formation and should be considered as one of the significant factors in studying the origin of life.

Facile photochemical synthesis of α-ketoamides and quinoxalines from amines and benzoylacetonitrile under mild conditions

Chao Zhou, Pinhui Diao, Xiaoji Li, Yanqin Ge, Cheng Guo

CCL 2019 Vol. 30 (02): 371-374 DOI:10.1016/j.cclet.2018.06.019

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A selective protocol for the synthesis of either α-ketoamides or quinoxaline derivatives under the same reaction conditions has been achieved simply by varying substitution number of amino-groups. The method features metal-free, room temperature and broad substrate scopes as well as no extra oxidant. This process applies to various substituent groups and gives products in moderate to good yield. Finally, a rational mechanism was proposed.

Selenium-catalyzed oxidative carbonylation of 1,2,3-thiadiazol-5-amine with amines to 1,2,3-thiadiazol-5- ylureas

Xiaopeng Zhang, Shuxiang Dong, Qianqian Ding, Xuesen Fan, Guisheng Zhang

CCL 2019 Vol. 30 (02): 375-378 DOI:10.1016/j.cclet.2018.07.017

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With cheap and easily available 1,2,3-thiadiazol-5-amine and amines as raw materials, cheap and reusable selenium as the catalyst, CO as the carbonylation reagent and O₂ as the oxidizing agent, the selenium-catalyzed oxidative carbonylation reaction of 1,2,3-thiadiazol-5-amine can proceed smoothly with a series of amines in one-pot manner in the presence of triethylamine, affording 1,2,3-thiadiazol-5-ylureas mostly in moderate to good yields.

Mn(Ⅲ)-mediated radical cascade reaction of boronic acids with isocyanides: Synthesis of diimide derivatives

Fei Wang, Tian-Qi Wei, Pei Xu, Shun-Yi Wang, Shun-Jun Ji

CCL 2019 Vol. 30 (02): 379-382 DOI:10.1016/j.cclet.2018.08.006

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A manganese(Ⅲ)-promoted oxidative radical cascade reaction of easily accessible arylboronic acids with isocyanides to construct diimide derivatives was studied. This protocol provides a new way to synthesis of acetyl diimide derivatives. New C-C, C-N and C=O bonds were formed in one step.

A facile transformation of alkynes into α-amino ketones by an N-bromosuccinimide-mediated one-pot strategy

Ting Wei, Yongming Zeng, Wei He, Lili Geng, Liang Hong

CCL 2019 Vol. 30 (02): 383-385 DOI:10.1016/j.cclet.2018.03.031

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A facile efficient transformation of commercially available alkynes into α-amino ketones by an N-bromosuccinimidemediated one-pot cascade strategy was developed. A variety of α-amino ketones were obtained in moderate to good yields under mild conditions.

Synthesis of 9-phenol-substituted xanthenes by cascade O-insertion/1,6-conjugate addition of benzyne with ortho-hydroxyphenyl substituted para-quinone methides

Zhijuan Li, Weihua Wang, Hui Jian, Wenjuan Li, Bin Dai, Lin He

CCL 2019 Vol. 30 (02): 386-388 DOI:10.1016/j.cclet.2018.04.003

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Benzynes undergo O-insertion/1,6-conjugate addition reaction with ortho-hydroxyphenyl substituted para-quinone methides efficiently, producing 9-phenol substituted xanthenes in moderate to high yields.

“Pinwheel-like” phthalocyanines with four non-peripheral chiral menthol units: Synthesis, spectroscopy, and electrochemistry

Wei Lv, Junling Duan, Shiyun Ai

CCL 2019 Vol. 30 (02): 389-391 DOI:10.1016/j.cclet.2018.06.002

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Chiral side chains have been incorporated onto the non-periphery moiety of phthalocyanine ring, resulting in a pair of chiral phthalocyanines, (D)-and (L)-1,8,15, 22-tetrakis(2-isopropyl-5-methylcyclohexoxyl)phthalocyanine.

Triazole-gold (TAAu) catalyzed three-component coupling (A3 reaction) towards the synthesis of 2, 4-disubstituted quinoline derivatives

Fusong Zhang, Qi Lai, Xiaodong Shi, Zhiguang Song

CCL 2019 Vol. 30 (02): 392-394 DOI:10.1016/j.cclet.2018.05.036

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A gold-catalyzed three-component coupling reaction (A3 reaction) was developed as an efficient approach for the synthesis of challenging 2,4-disubstituted quinoline derivatives. Compared to previously reported Cu/Au bi-catalyst system, this protocol enables achieving A3 reaction only in the presence of triazole-gold catalyst. Notably, 4-alkyl substituted or 2-alkyl substituted quinoline derivatives were obtained with good yields, which highlighted the unique advantage of this new strategy.

Cycloaddition of hydrazones and 1, 2-diarylalkynes promoted by t-BuOK/DMF: A convenient synthesis of tetraarylpyrazoles

Lang Tong, Zhifeng Mao, Xiangzheng Tang, Xuejing Zhang, Ming Yan

CCL 2019 Vol. 30 (02): 395-397 DOI:10.1016/j.cclet.2018.06.018

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A facile synthesis of tetraarylpyrazoles has been developed via t-BuOK/DMF promoted intermolecular cycloaddition of hydrazones and 1,2-diarylalkynes.

RuCl₃ anchored onto post-synthetic modification MIL-101(Cr)-NH₂ as heterogeneous catalyst for hydrogenation of CO₂ to formic acid

Shengping Wang, Shihui Hou, Chao Wu, Yujun Zhao, Xinbin Ma

CCL 2019 Vol. 30 (02): 398-402 DOI:10.1016/j.cclet.2018.06.021

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A series of novel metal-organic framework-anchored RuCl₃ catalysts for the CO₂ hydrogenation to formic acid have been developed. RuCl₃@MIL-101(Cr)-DPPB catalyst exhibited the higher catalytic performance for hydrogenation of CO₂ to formic acid due to the phosphorus atom of DPPBde as a stronger electron-donor substituent to promote the insertion of CO₂ into RuH bond.

A multifunctional integrated simultaneously online screening microfluidic biochip for the examination of “efficacy-toxicity” and compatibility of medicine

Hechen Wang, Tianjiao Li, Yongrui Bao, Shuai Wang, Xiansheng Meng

CCL 2019 Vol. 30 (02): 403-405 DOI:10.1016/j.cclet.2018.08.016

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A multifunctional integrated microfluidic biochip device was engineered to estimate the activity-toxicity and composition principle of medicine in a cell model in vitro.

Cyclopropanation of active methylene compounds with β-alkoxycarbonyl vinylsulfonium salts

Shenquan Guo, Niuniu Zhang, Xiangzheng Tang, Zhifeng Mao, Xuejing Zhang, Ming Yan, Yining Xuan

CCL 2019 Vol. 30 (02): 406-408 DOI:10.1016/j.cclet.2018.08.021

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An efficient synthesis of β-alkoxycarbonyl vinylsulfonium salts had been developed. Their reaction with indene- 1,3-diones and other active methylene compounds provided cyclopropane carboxylates in good yields. A tentative reaction mechanism was proposed.

Nickel-catalysed C-O bond reduction of 2,4,6-triaryloxy-1,3,5-triazines in 2-methyltetrahydrofuran

Yaoyao Wang, Jun Shen, Qun Chen, Liang Wang, Mingyang He

CCL 2019 Vol. 30 (02): 409-412 DOI:10.1016/j.cclet.2018.09.009

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A nickel-catalysed reduction of phenol derivatives activated by 2,4,6-trichloro-1,3,5-triazine (TCT) in ecofriendly 2-methyltetrahydrofuran (2-MeTHF) was described.

Design, synthesis and antimycobacterial activity of novel nitrobenzamide derivatives

Hongjian Wang, Kai Lv, Xiaoning Li, Bo Wang, Apeng Wang, Zeyu Tao, Yunhe Geng, Bin Wang, Menghao Huang, Mingliang Liu, Huiyuan Guo, Yu Lu

CCL 2019 Vol. 30 (02): 413-416 DOI:10.1016/j.cclet.2018.08.005

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We report herein the design and synthesis of a series of novel nitrobenzamide derivatives. Results reveal that A6, A11, C1 and C4 have not only the same excellent MIC values of <0.016 μg/mL against drug-resistant clinical isolates as lead 1, but also acceptable safety indices (SI >1500), opening a new direction for further development.

Synthesis, bioactivity, action mode and 3D-QSAR of novel anthranilic diamide derivatives

Weijie Liu, Jiao Li, Kai He, Fangfang Huang, Yi Ma, Yuxin Li, Qingshan Li, Fengbo Xu

CCL 2019 Vol. 30 (02): 417-420 DOI:10.1016/j.cclet.2018.05.023

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Several newly synthesized anthranilic diamide derivatives were found to exhibit excellent bioactivity. The action mode test and 3D-QSAR analysis provided valuable information for evaluation and future design of anthranilic diamide insecticides.

Improvement of antibacterial activity of copper nanoclusters for selective inhibition on the growth of gram-positive bacteria

Junmei Xia, Wenjing Wang, Xin Hai, Shuang E, Yang Shu, Jianhua Wang

CCL 2019 Vol. 30 (02): 421-424 DOI:10.1016/j.cclet.2018.07.008

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A novel copper nanoclusters, i.e., tannic acid (TA) capped CuNCs (TA-CuNCs), exists high antibacterial activity for selectively inhibiting/against the growth of gram-positive bacteria by damaging the cell membrane.

Synthesis of novel 5-O-(6'-O-modified)-desosamine 14-membered ketolides

Zhehui Zhao, Apeng Wang, Xiaoxi Zhang, Shuang Yang, Zhigang Luo, Pingsheng Lei

CCL 2019 Vol. 30 (02): 425-427 DOI:10.1016/j.cclet.2018.04.014

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A new and facile procedure was developed to synthesize novel 5-O-(6'-O-modified)-desosamine 14-membered ketolides by adopting different protective strategies and comparing various glycosylation conditions.

Cytotoxic polyacetylenes isolated from the roots and rhizomes of Notopterygium incisum

Xikang Zheng, Xiaoqing Zheng, Chen Zhang, Qingying Zhang, Yong Jiang, Pengfei Tu

CCL 2019 Vol. 30 (02): 428-430 DOI:10.1016/j.cclet.2018.09.011

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A new polyacetylene, notopolyenol A, isolated from Notopterygium incisum was identified by spectroscopic technique and chemical method, and its synthetic enantiomer displayed significant cytotoxicity against MCF-7, H1299, and HepG2 cancer cells with IC₅₀ values ranging from 0.6 μmol/L to 1.4 μmol/L.

New phenylpyridone derivatives from the Penicillium sumatrense GZWMJZ-313, a fungal endophyte of Garcinia multiflora

Yanchao Xu, Liping Wang, Guoliang Zhu, Mingxing Zuo, Qianyu Gong, Wenwen He, Mingpeng Li, Chunmao Yuan, Xiaojiang Hao, Weiming Zhu

CCL 2019 Vol. 30 (02): 431-434 DOI:10.1016/j.cclet.2018.08.015

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New pyridine alkaloids, citridones E-G (1-3), were identified from the solid culture of the endophytic fungus Penicillium sumatrense GZWMJZ-313 in Garcinia multiflora.

Bistachybotrysins D and E, one stereoisomeric pair of cytotoxic phenylspirodrimane dimers from Stachybotrys chartarum

Min Zhang, Jiamin Feng, Xiaona Jia, Jinlian Zhao, Jimei Liu, Ridao Chen, Kebo Xie, Dawei Chen, Yan Li, Dan Zhang, Jungui Dai

CCL 2019 Vol. 30 (02): 435-438 DOI:10.1016/j.cclet.2018.04.031

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Bistachybotrysins D and E (1 and 2), one stereoisomeric pair of phenylspirodrimane dimers with a central [6,5,6]-tricyclic carbon scaffold were isolated from Stachybotrys chartarum CGMCC 3.5365. They displayed potent cytotoxic activity against four human tumor cell lines with IC₅₀ values ranging from 6.7 μmol/L to 11.6 μmol/L.

Lithocarpinols A and B, a pair of diastereomeric antineoplastic tenellone derivatives from the deep-sea derived fungus Phomopsis lithocarpus FS508

Jianlin Xu, Haibo Tan, Yuchan Chen, Saini Li, Heng Guo, Zilei Huang, Haohua Li, Xiaoxia Gao, Hongxin Liu, Weimin Zhang

CCL 2019 Vol. 30 (02): 439-442 DOI:10.1016/j.cclet.2018.09.018

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A pair of tenellone diastereoisomers with a rare 2,3-dihydro-1H-indene core, showing moderate cytotoxic activity against four human tumor cell lines, were isolated from marine-derived fungus Phomopsis lithocarpus FS508.

Enzymatic biosynthesis of benzylisoquinoline alkaloid glycosides via promiscuous glycosyltransferases from Carthamus tinctorius

Yujiao Zhang, Kebo Xie, Aijing Liu, Ridao Chen, Dawei Chen, Lin Yang, Jungui Dai

CCL 2019 Vol. 30 (02): 443-446 DOI:10.1016/j.cclet.2018.05.010

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Three new GTs (UGT84A33, UGT71AE1 and UGT90A14) from Carthamus tinctorius exhibited robust catalytic promiscuity to benzylisoquinoline alkaloids, and were used as enzymatic tools for the synthesis of diverse benzylisoquinoline alkaloid glycosides.

New dammarane-type saponins from the leaves of Panax notoginseng

Jiwu Huang, Chuangjun Li, Junzi Cao, Jie Ma, Yiqian Du, Xinyi Liu, Jingzhi Yang, Dongming Zhang

CCL 2019 Vol. 30 (02): 447-450 DOI:10.1016/j.cclet.2018.04.015

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Two new triterpenoid saponins, notoginsenoside-Ng3 (1) and notoginsenoside-Ng4 (2), along with three known saponins (3-5), were isolated from a water extract of the leaves of Panax notoginseng. The absolute configuration of notoginsenoside Fa (3) with five sugars was confirmed by the single-crystal X-ray diffraction for the first time.

New ent-kaurane diterpenes with chiral epoxyangelate moieties from Wedelia prostrata

Zhongnan Wu, Yubo Zhang, Wen Li, Nenghua Chen, Qianwen Niu, Yingying Li, Qingguo Li, Dan Yang, Yaolan Li, Guocai Wang

CCL 2019 Vol. 30 (02): 451-453 DOI:10.1016/j.cclet.2018.05.038

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Four new ent-kaurane diterpenes, which contain (2'R,3'R)-/(2'S,3'S)-/(2'S,3'S)-/(2'R,3'S)-2',3'-epoxyangeloyloxy moieties, along with eight known ones, were isolated from the herbs of Wedelia prostrata. Their structures were elucidated by spectroscopic data, X-ray crystallography, ECD calculation and chemical methods.

A photocalibrated NO donor based on N-nitrosorhodamine 6G upon UV irradiation

Shengrui Zhang, Qin Wang, Jiajun Yang, Xiao-Feng Yang, Zheng Li, Hua Li

CCL 2019 Vol. 30 (02): 454-456 DOI:10.1016/j.cclet.2018.03.011

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A N-nitrosated rhodamine 6G acid (NOG) was designed for monitoring the kinetics and the dose of NO release in a real-time fashion with UV irradiation.

Microfluidic fabrication of water-in-water droplets encapsulated in hydrogel microfibers

Chenguang Liu, Wenchen Zheng, Ruoxiao Xie, Yupeng Liu, Zhe Liang, Guoan Luo, Mingyu Ding, Qionglin Liang

CCL 2019 Vol. 30 (02): 457-460 DOI:10.1016/j.cclet.2018.09.010

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By combining microfiber spinning techniques with aqueous two phase system (ATPS), a rapid and simple strategy to fabricate water-in-water (w/w) droplets encapsulated in microfibers was proposed for the first time. Hydrophilic environment in hydrogel and the fiber format facilitates higher biocompatibility, convenient manipulation of the droplets and recycling of the contents inside droplets, which would have promising development in biological, pharmacological and environmental fields.

A high-performance bio-tissue imaging method using air flow-assisted desorption electrospray ionization coupled with a high-resolution mass spectrometer

Yiwei Lv, Tiegang Li, Chengan Guo, Chenglong Sun, Fei Tang, Luojiao Huang, Zhigang Luo, Xin Li, Ruiping Zhang, Qingce Zang, Jiuming He, Zeper Abliz

CCL 2019 Vol. 30 (02): 461-464 DOI:10.1016/j.cclet.2018.06.006

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An air flow-assisted desorption electrospray ionization (AFADESI) MSI device was combined with a highresolution mass spectrometer to optimize the system parameters and achieve more accurate spatial distribution characteristics for compounds of interest while investigating bio-tissue sections. Finally, the parameter conditions that can provide optimal ionic intensity and enhanced resolution were confirmed.

A novel composite stationary phase composed of polystyrene/divinybenzene beads and quaternized nanodiamond for anion exchange chromatography

Peng Yao, Zhongping Huang, Qiulian Zhu, Zuoyi Zhu, Lili Wang, Yan Zhu

CCL 2019 Vol. 30 (02): 465-469 DOI:10.1016/j.cclet.2018.03.029

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Anion exchangers were prepared through agglomerating quaternized nanodiamods or cationic polyelectrolyte with sulfonated polystyrene/divinylbenzene. These particles showed good separation efficiency after hyperbranched by methylamine and 1,4-butanediol diglycidyl ether.

A reversed phase/hydrophilic interaction/ion exchange mixed-mode stationary phase for liquid chromatography

Sainan Zhang, Feifang Zhang, Bingcheng Yang, Xinmiao Liang

CCL 2019 Vol. 30 (02): 470-472 DOI:10.1016/j.cclet.2018.04.013

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A new stationary phase demonstrated effective separation towards polar analytes or their counterions within a single run.

Anionic polymerization initiated by lithium amides for preparing high molecular weight polyacrylonitrile

Xiaolin Shi, Jingyang Jiang

CCL 2019 Vol. 30 (02): 473-476 DOI:10.1016/j.cclet.2018.01.040

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Five lithium amides have been proved to be effective anionic initiators for the anionic polymerization of acrylonitrile to get high molecular weight polyacrylonitrile in this study.

Self-assembly of homopolymer of PAA-NH₄

Tongbing Sun, Xiaoli Yang, Caizhen Zhu, Ning Zhao, Haixia Dong, Jian Xu

CCL 2019 Vol. 30 (02): 477-480 DOI:10.1016/j.cclet.2018.07.014

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PAA-NH₄ assemblies varying from nanospheres to large particles and yolk-shell vesicles were obtained by adding different amount of HCl solution into the dispersion of PAA-NH₄ in ethanol, which may be extended the practical application due to the simple polymers used.

Zirconium metal-organic framework nanocrystal as microwave sensitizer for enhancement of tumor therapy

Yuanwen Zou, Wei Zhang, Hongqiao Zhou, Changhui Fu, Longfei Tan, Zhongbing Huang, Xiangling Ren, Jun Ren, Xudong Chen, Xianwei Meng

CCL 2019 Vol. 30 (02): 481-484 DOI:10.1016/j.cclet.2018.06.016

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A microwave thermal therapy was proposed based on the strategy of microwave sensitizers and the susceptibility of the tumor tissue for enhancing thermal antitumor therapy.

A photocleavable low molecular weight hydrogel for light-triggered drug delivery

Qihong Liu, Hao Wang, Guotao Li, Miaochang Liu, Jinchang Ding, Xiaobo Huang, Wenxia Gao, Huayue Wu

CCL 2019 Vol. 30 (02): 485-488 DOI:10.1016/j.cclet.2018.06.009

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A photocleavable low-molecular-weight hydrogel was fabricated based on coumarin with C-N bond breaking upon UV irradiation to obtain a photo-triggered drug delivery carrier.

Designing cancer nanodrugs that are highly loaded, pH-responsive, photothermal, and possess a favored morphology: A hierarchical assembly of DOX and layer-by-layer modified rGO

Xiangming Li, Yihe Zhang, Zequn Ma, Chengjun He, Yaling Wu, Qi An

CCL 2019 Vol. 30 (02): 489-493 DOI:10.1016/j.cclet.2018.03.019

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A facile strategy to construct the multifunctional rGO-DOX nanodrugs by hydrogen bonding was reported. The nanodrugs were highly loaded, pH-responsive, photothermal, and possess a favored morphology.

Silica supported potassium oxide catalyst for dehydration of 2-picolinamide to form 2-cyanopyridine

Yamei Li, Yujun Zhao, Shengping Wang, Xinbin Ma

CCL 2019 Vol. 30 (02): 494-498 DOI:10.1016/j.cclet.2018.04.012

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Si-O-K produced by the reaction of loaded K₂CO₃ with Si-OH was found to be the active species for the dehydration of 2-PA to 2-CP over K₂O/SiO₂ catalyst.

A zinc(Ⅱ) MOF based on secondary building units of infinite wavy-shaped chain exhibiting obvious luminescent sense effects

Kai Li, Kunhuan He, Quanwen Li, Bin Xia, Qinglun Wang, Yinghui Zhang

CCL 2019 Vol. 30 (02): 499-501 DOI:10.1016/j.cclet.2018.05.001

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A metal-organic framework (1) based on a wavy and infinite chainshaped secondary building unit was constructed and it exhibited palpable luminescent sense effects for DMF and DMAC.

Preparation and tribological properties of potassium titanate-Ti₃C₂T_x nanocomposites as additives in base oil

Xuefeng Zhang, Yu Guo, Yijia Li, Yong Liu, Shangli Dong

CCL 2019 Vol. 30 (02): 502-504 DOI:10.1016/j.cclet.2018.07.007

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The potassium titanate-Ti₃C₂T_x nanocomposite was successfully synthesized by a simple one-step chemical process using Ti₃C₂T_x and potassium hydroxide at room temperature. Compare to Ti₃C₂T_x nanosheets, the potassium titanate-Ti₃C₂T_x exhibits superior tribological properties.

Patterning catalyst via inkjet printing to grow single-walled carbon nanotubes

Zeyao Zhang, Yitan Li, Sheng Zhu, Xiyan Liu, Xiulan Zhao, Meihui Li, Haoyu Li, Feng Yang, Yan Li

CCL 2019 Vol. 30 (02): 505-508 DOI:10.1016/j.cclet.2018.06.008

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We demonstrated a method to pattern catalyst via inkjet printing to grow SWNTs, using metal salt solutions as the inks and an ordinary office-use printer. We printed water solutions of cobalt acetate on hydrophilic Si substrates and grew high quality SWNT films.

Electrochemical reduction of CO₂ and degradation of KHP on boron-doped diamond electrodes in a simultaneous and enhanced process

Daibing Luo, Shanhu Liu, Kazuya Nakata, Akira Fujishima

CCL 2019 Vol. 30 (02): 509-512 DOI:10.1016/j.cclet.2018.06.010

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A BDD-BDD system was developed in the simultaneous conversion of CO₂ and wastewater purification in one electrochemical cell.

Isolated zinc in mordenite stabilizing carbonylation of dimethyl ether to methyl acetate

Zhitao Zhang, Na Zhao, Kui Ma, Qingpeng Cheng, Jing Zhang, Lirong Zheng, Ye Tian, Xingang Li

CCL 2019 Vol. 30 (02): 513-516 DOI:10.1016/j.cclet.2018.05.032

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Mordenite with the isolated zinc ions enhanced the catalytic performance for carbonylation of dimethyl ether to methyl acetate. The addition of Zn affected the acid properties of the catalysts, further changed the rate of coke deposition.

Concise synthesis of NaTi₂(PO₄)₃ nanocrystals with size and morphology control

Hanqing Dai, Wenqian Xu, Kehan Yu, Wei Wei

CCL 2019 Vol. 30 (02): 517-520 DOI:10.1016/j.cclet.2018.06.020

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NaTi₂(PO₄)₃ nanocrystals with high room-temperature ionic conductivity of 1.1×10^-3 S/cm were prepared by the solvothermal method at 140℃ for 3 h, and the aspect ratios of all the NTP nanocrystals are the closest to 0.7. The controllability over size and morphology of the NTP nanocrystals via solvothermal temperature and time were investigated.

Promoted conversion of polysulfides by MoO₂ inlaid ordered mesoporous carbons towards high performance lithium-sulfur batteries

Yawei Chen, Shuzhang Niu, Wei Lv, Chen Zhang, Quanhong Yang

CCL 2019 Vol. 30 (02): 521-524 DOI:10.1016/j.cclet.2018.04.019

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A MoO₂-ordered mesoporous carbon (M-OMC) hybrid was designed as the sulfur host, in which MoO₂ is inlaid on the surface of ordered mesoporous carbons that can store active materials and provide fast electron transfer channel due to its ordered porestructure. The MoO₂ can effectively prevent the migration of polysulfides through the chemical adsorption and promote the conversion of polysulfides towards Li-sulfur battery.

Protection of Li metal anode by surface-coating of PVDF thin film to enhance the cycling performance of Li batteries

Zhenguang Gao, Shaojian Zhang, Zhigen Huang, Yanqiu Lu, Weiwei Wang, Kai Wang, Juntao Li, Yao Zhou, Ling Huang, Shigang Sun

CCL 2019 Vol. 30 (02): 525-528 DOI:10.1016/j.cclet.2018.05.016

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The PVDF thin film on the surface of the lithium metal can highly suppress the lithium dendrites.

MOF-derived ZnCo₂O₄/C wrapped on carbon fiber as anode materials for structural lithium-ion batteries

Huagen Li, Shubin Wang, Mengjie Feng, Jiping Yang, Boming Zhang

CCL 2019 Vol. 30 (02): 529-532 DOI:10.1016/j.cclet.2018.06.024

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In this work, large area MOF-derived ZnCo₂O₄/C anchored on carbon fiber as high-performance anode materials was fabricated via a facile method and subsequent annealing treatment.