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Synthesis of Poly(L-lactide)/[small beta]-cyclodextrin/citrate Networks Modified Hydroxyapatite and its Biomedical Properties

03.07.2018 | Wenjun Yi; Li-Jun Li; Hao He; Zhen Hao; Bo Liu; Yi Shen; Zi-Sheng Chao, New Journal of Chemistry, 2018

Hydroxyapatite (HA) was modified by chelation of citric acid and Ca on the surface of HA, followed by the cross-linking between the hydroxyl groups of β-cyclodextrin (β-CD) and citrate, and then further in situ ring-opening polymerization of L-lactide over the hydroxyl groups. The modification of ...


4,4[prime or minute],4[prime or minute][prime or minute]-Triaminotriphenylamine-based porous polyimide as a visible-light-driven photocatalyst

03.07.2018 | Qin Wang; Jianling Zhang; Yuyan Yu; Yi Dan; Long Jiang, New Journal of Chemistry, 2018

Aiming to develop a visible-light-driven polymeric photocatalyst that can be fabricated by an easy-to-scale-up polymerization method, a porous polyimide (PPI) with a specific surface area (SBET) of 79.3 m2 g−1 was synthesized by a facile polycondensation of 3,3′,4,4′-benzophenonetetracarboxylic ...


Investigation on photoluminescence properties, Judd-Ofelt analysis, luminescence nanothermometry and optical heating behaviour of Er3+/Eu3+/Yb3+: NaZnPO4 nanophosphors

03.07.2018 | Lakshmi Mukhopadhyay; Vineet Rai, New Journal of Chemistry, 2018

Er3+/Eu3+/Yb3+: NaZnPO4 nanophosphors synthesized by co-precipitation technique have been structurally and optically characterized. The effect of Eu3+ ion concentration on photoluminescence (PL) emission intensity and the energy transfer mechanisms implicated in the present nanophosphors has been ...


An efficient copper catalyzed 3D mesoporous aluminosilicate for the synthesis of dibenzodiazonines in Ullmann cross-coupling reaction

03.07.2018 | Udayakumar Veerabagu; Gowsika udayakumar; Arumugam Pandurangan; Sabarathinam Shanmugam; Lu Fushen, New Journal of Chemistry, 2018

A series of copper oxide with different weight percentages such as 2%, 4% & 6% supported on three dimensional mesoporous aluminosilicates have been prepared by hydrothermal method, the effects of loading amount on the support, interactions of components and surface properties were systematically ...


Dual-Functional Cyclic Peptide Switch on Mesoporous Nanocontainers for Selective CD44 Targeting and On-Off Gatekeeping Triggered by Conformational Transformation

03.07.2018 | Jeonghun Lee; Eun-Taex Oh; Minhyuek Choi; Ha Gyeong Kim; Heon Joo Park; Chulhee Kim, New Journal of Chemistry, 2018

Cyclic peptide gatekeepers with a capability of on-off drug release triggered by stimuli-responsive conformational transformation on the surface of mesoporous silica nanocontainers (MSNs) has several advantages such as facile introduction of targeting ligand, high targeting selectivity, and low ...


Pyrenyl substituted 1,8-naphthalimide as a new material for weak efficiency-roll-off red OLEDs: a theoretical and experimental study

03.07.2018 | Oleksandr Bezvikonnyi; Dalius Gudeika; Dmytro Volyniuk; Juozas V. Grazulevicius; Gintautas Bagdziunas, New Journal of Chemistry, 2018

Based on the theoretical calculations of excited states and semiconducting properties, a new 1,8-naphthalimide derivative having an electron-donating 1-pyrenyl group at the C-4 position was designed and synthesized. This derivative exhibited an excellent thermal stability and bipolar charge ...


Graphene Oxide based Fluorescence Sensor for Cucurbit[7]uril

03.07.2018 | Prakash Ramesh; Usha G. Govindaraj; Sivaranjana Paramasivan; Karpagalakshmi Karuppasamy; Lakshminarayanan Piramuthu; ..., New Journal of Chemistry, 2018

Rhodamine B (RhB) anchored reduced Graphene oxide (RhBGO) offers a very sensitive and selective sensing potential for cucurbit[7]uril (CB[7]). Except CB[7], RhBGO did not respond for other cucurbituril homologues and for β-cyclodextrin (β-CD) presumably due to their inability to pull off RhB from ...


Synthesis, photophysical, antibacterial and larvicidal studies on triazolophanes with 5-nitro isophthalate functionality at the intraannular position

03.07.2018 | Sivasamy Selvarani; Perumal Rajakumar; Subramani Nagaraj; Manisha Choudhury; Devadasan Velmurugan, New Journal of Chemistry, 2018

1 : 1 and 2 : 2 oligomeric triazolophanes with 5-nitro isophthalate and triazolyl functionalities at the intraannular position have been synthesized by copper(i) catalyzed 1,3 dipolar cycloaddition of the corresponding propargylic esters with various phenyl substituted aliphatic azides under mild ...


CO2 Promoted Synthesis of Unsymmetrical Organic Carbonate by Switchable Agents Based on DBU and Alcohols

03.07.2018 | Qingwen Gu; Jian Fang; Zichen Xu; Wenxiu Ni; Kang Kong; Zhenshan Hou, New Journal of Chemistry, 2018

1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) is an effective nucleophilic catalyst for transesterification of dimethyl carbonate (DMC) with various alcohol and amines, which afforded the unsymmetrical organic carbonate and carbamate. It was observed that the transesterification was accelerated in the ...


Continuous detection of HCl and NH3 gases with a high-performance fluorescent polymer sensor

03.07.2018 | Ning Xu; Rui-Lei Wang; Dong-Peng Li; Zi-Yan Zhou; Tian Zhang; Yu-Zhong Xie; Zhong-Min Su, New Journal of Chemistry, 2018

A novel fluorescent triazine-based covalent organic polymer (COP-1) sensor toward HCl and NH3 gases has been designed and synthesized. Both the COP-1 powders dispersed in solvents and the COP-1 film formed on surface of quartz sheets exhibit stable fluorescence and sensitive HCl/NH3 response. ...


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