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Article ; Online: A multi-wavelength cross-reactive fluorescent sensor ensemble for fingerprinting flavonoids in serum and urine.

Fan, Junmei / Zhu, Ruitao / Han, Wei / Han, Hongfei / Ding, Liping

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

2024 Volume 310, Page(s) 123893

Abstract: Flavonoids are a kind of natural polyphenols which are closely related to human health, and the identification of flavonoids with similar structures is an important but difficult issue. We herein easily constructed a powerful fluorescent sensor ensemble ... ...

Abstract	Flavonoids are a kind of natural polyphenols which are closely related to human health, and the identification of flavonoids with similar structures is an important but difficult issue. We herein easily constructed a powerful fluorescent sensor ensemble by using surfactant cetyltrimethylammoniumbromide (CTAB) encapsulating two commercially available fluorescent probes (F1 and F2) with multi-wavelength emission. Fluorescence measurements illustrate the present sensor ensemble exhibits turn-off responses to flavones and flavonols but ratiometric responses to isoflavones, owing to different FRET processes. The heat map and linear discriminant analysis (LDA) results show that this single sensor can effectively distinguish 6 flavonoids belong to three subgroups by collecting the fluorescence variation at four typical wavelengths. Moreover, it can be applied to identify different flavonoids even in biofluids like serum and urine, providing potential practical application.
MeSH term(s)	Humans ; Flavonoids/chemistry ; Flavonols ; Flavones ; Isoflavones ; Surface-Active Agents/chemistry ; Fluorescent Dyes/chemistry
Chemical Substances	Flavonoids ; Flavonols ; Flavones ; Isoflavones ; Surface-Active Agents ; Fluorescent Dyes
Language	English
Publishing date	2024-01-18
Publishing country	England
Document type	Journal Article
ZDB-ID	210413-1
ISSN	1873-3557 ; 0370-8322 ; 0584-8539 ; 1386-1425
ISSN (online)	1873-3557
ISSN	0370-8322 ; 0584-8539 ; 1386-1425
DOI	10.1016/j.saa.2024.123893
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: A minimalist ratiometric fluorescent sensor based on non-covalent ternary platform for sensing H2S in aqueous solution and serum

Fan, Junmei / Wu, Enrui / Dong, Jinlong / Zhu, Ruitao / Li, Meiqin / Gao, Jiangning / Han, Hongfei / Ding, Liping

Colloids and surfaces. 2021 May 05, v. 616

2021

Abstract: Great efforts have been made to detect hydrogen sulfide (H₂S) due to its involvements in various physiological processes and disease diagnosis. In the present work, a novel dansyl-based derivative (DBr) was synthesized and used as a FRET donor, and ... ...

Abstract	Great efforts have been made to detect hydrogen sulfide (H₂S) due to its involvements in various physiological processes and disease diagnosis. In the present work, a novel dansyl-based derivative (DBr) was synthesized and used as a FRET donor, and pyronine Y (PyY) was used as a FRET acceptor for constructing a ratiometric fluorescent sensor with assisstance of surfactant. The non-covalent ternary sensor platform could interact with H₂S, causing an orange to blue-green fluorescence change as the acceptor emission decreased and the donor emission increased. The remarkable ratiometric response empowers the present system a high sensitivity to H₂S with a detection limit of 110 nM. Moreover, the detection of H₂S in serum could also be realized, providing the possibility for practical applications.
Keywords	aqueous solutions ; blood serum ; detection limit ; disease diagnosis ; fluorescence ; hydrogen sulfide ; surfactants
Language	English
Dates of publication	2021-0505
Publishing place	Elsevier B.V.
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	1500517-3
ISSN	0927-7757
ISSN	0927-7757
DOI	10.1016/j.colsurfa.2021.126299
Database	NAL-Catalogue (AGRICOLA)

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Article: A new polymorph of 1-({[1,3-dihy-droxy-2-(hy-droxy-meth-yl)propan-2-yl]iminio}meth-yl)naphthalen-2-olate.

Guo, Ailing / Zhang, Shurong / Wang, Kun / Zhu, Ruitao

Acta crystallographica. Section E, Crystallographic communications

2015 Volume 71, Issue Pt 9, Page(s) o686–7

Abstract: The title compound, C15H17NO4, containing two mol-ecules in the asymmetric unit is a polymorph of the crystal structure published by Martínez et al. [(2011). Eur. J. Org. Chem. pp. 3137-3145] which at 120 K is monoclinic with one mol-ecule in the ... ...

Abstract	The title compound, C15H17NO4, containing two mol-ecules in the asymmetric unit is a polymorph of the crystal structure published by Martínez et al. [(2011). Eur. J. Org. Chem. pp. 3137-3145] which at 120 K is monoclinic with one mol-ecule in the asymmetric unit. Both mol-ecules in the title compound are in the trans form. In the crystal, N-H⋯O and O-H⋯O hydrogen bonds connect mol-ecules, forming a two-dimensional network parallel to (001).
Language	English
Publishing date	2015-08-26
Publishing country	England
Document type	Journal Article
ZDB-ID	2041947-8
ISSN	2056-9890 ; 1600-5368
ISSN	2056-9890 ; 1600-5368
DOI	10.1107/S205698901501539X
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: A "turn-on" fluorescent chemosensor for aluminum ion and cell imaging application.

Guo, Ailing / Zhu, Ruitao / Ren, Yuehong / Dong, Jinlong / Feng, Liheng

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

2016 Volume 153, Page(s) 530–534

Abstract: A simple and efficient fluorescent chemosensor for Al(3+) is reported in the paper. The chemosensor is obtained by dehydration reaction of 2-hydroxy-1-naphthaldehyde and 2-aminophenol. The chemosensor has high selectivity and sensitivity for Al(3+) and ... ...

Abstract	A simple and efficient fluorescent chemosensor for Al(3+) is reported in the paper. The chemosensor is obtained by dehydration reaction of 2-hydroxy-1-naphthaldehyde and 2-aminophenol. The chemosensor has high selectivity and sensitivity for Al(3+) and displays fluorescence "off-on" switch signal. The detection limit of the chemosensor for Al(3+) can reach 1.0×10(-7) M in DMSO/H2O (1:9, v/v) solution. The mass spectra and Job's plot analysis confirm the 1:1 stoichiometry between chemosensor and Al(3+). Potential utilization of the probe as an intracellular sensor of Al(3+) in human cancer (HiSa) cells is also examined by confocal fluorescence microscopy.
MeSH term(s)	Aluminum/chemistry ; Cell Line, Tumor ; Fluorescent Dyes/chemistry ; Humans ; Ions ; Molecular Imaging/methods ; Naphthalenes/chemistry ; Solutions ; Spectrometry, Fluorescence ; Spectrophotometry, Ultraviolet
Chemical Substances	Fluorescent Dyes ; Ions ; Naphthalenes ; Solutions ; Aluminum (CPD4NFA903)
Language	English
Publishing date	2016-01-15
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	210413-1
ISSN	1873-3557 ; 0370-8322 ; 0584-8539 ; 1386-1425
ISSN (online)	1873-3557
ISSN	0370-8322 ; 0584-8539 ; 1386-1425
DOI	10.1016/j.saa.2015.09.009
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Article: Crystal structure of 4-meth-oxy-N-phenyl-benzamide.

Wang, Zhijun / Lei, Haiying / Jin, Linhua / Zhu, Ruitao

Acta crystallographica. Section E, Structure reports online

2014 Volume 70, Issue Pt 9, Page(s) o921

Abstract: In the title mol-ecule, C14H13NO2, the dihedral angle between the planes of the benzene rings is 65.18 (4)°. The central amide group has about the same degree of twist with respect to both ring planes, as indicated by the dihedral angles of 34.70 (8) and ...

Abstract	In the title mol-ecule, C14H13NO2, the dihedral angle between the planes of the benzene rings is 65.18 (4)°. The central amide group has about the same degree of twist with respect to both ring planes, as indicated by the dihedral angles of 34.70 (8) and 30.62 (8)° between its plane and that of the phenyl and 4-meth-oxy-benzene rings, respectively. The C atom of the meth-oxy group is close to being coplanar with its attached ring [deviation = -0.112 (2) Å]. In the crystal, mol-ecules are linked by inter-amide N-H⋯O hydrogen bonds, which generate C(4) chains propagating in the [100] direction. Adajcent mol-ecules in the chain are related by translational symmetry.
Language	English
Publishing date	2014-08-01
Publishing country	United States
Document type	Journal Article
ZDB-ID	2041947-8
ISSN	1600-5368
ISSN	1600-5368
DOI	10.1107/S1600536814016420
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: 1,2-Dimeth-oxy-3-[(E)-2-nitro-ethen-yl]benzene.

Ren, Yuehong / Zhu, Ruitao

Acta crystallographica. Section E, Structure reports online

2010 Volume 66, Issue Pt 9, Page(s) o2249

Abstract: The title compound, C(10)H(11)NO(4), was synthesized via condensation of 2,3-dimeth-oxy-benzaldehyde with nitro-methane using microwave irradiation without solvent. The H atoms of the -CH=CH- group are in a trans configuration. The dihedral angle between ...

Abstract	The title compound, C(10)H(11)NO(4), was synthesized via condensation of 2,3-dimeth-oxy-benzaldehyde with nitro-methane using microwave irradiation without solvent. The H atoms of the -CH=CH- group are in a trans configuration. The dihedral angle between the mean planes of the benzene ring and the nitro-alkenyl group is 23.90 (6)°.
Language	English
Publishing date	2010-08-11
Publishing country	United States
Document type	Journal Article
ZDB-ID	2041947-8
ISSN	1600-5368 ; 1600-5368
ISSN (online)	1600-5368
ISSN	1600-5368
DOI	10.1107/S1600536810030539
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: 2,2',7,7'-Tetra-bromo-9,9'-spiro-bifluorene toluene hemisolvate.

Guo, Ailing / Zhu, Ruitao

Acta crystallographica. Section E, Structure reports online

2009 Volume 65, Issue Pt 7, Page(s) o1528

Abstract: There are two independent mol-ecules and one toluene solvent mol-ecule in the asymmetric unit of the title compound, C(25)H(12)Br(4)·0.5C(7)H(8). The dihedral angles between the fluorene ring systems are 85.30 (6) and 84.95 (6)° in the two mol-ecules. ... ...

Abstract	There are two independent mol-ecules and one toluene solvent mol-ecule in the asymmetric unit of the title compound, C(25)H(12)Br(4)·0.5C(7)H(8). The dihedral angles between the fluorene ring systems are 85.30 (6) and 84.95 (6)° in the two mol-ecules. The disortions in angles from the ideal sp(3)-hybridization geometry around the tetra-hedral C atoms are due to the strain imposed by the central five-membered ring and steric effects.
Language	English
Publishing date	2009-06-10
Publishing country	United States
Document type	Journal Article
ZDB-ID	2041947-8
ISSN	1600-5368
ISSN	1600-5368
DOI	10.1107/S1600536809021072
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Article ; Online: Study on the interaction between curcumin and CopC by spectroscopic and docking methods.

Song, Zhen / Yuan, Wen / Zhu, Ruitao / Wang, Song / Zhang, Caifeng / Yang, Binsheng

International journal of biological macromolecules

2017 Volume 96, Page(s) 192–199

Abstract: Curcumin is a widely studied polyphenolic compound which has a variety of biological activity as anti-inflammatory and antitumor drugs. Recent research reported that copper chaperone binding with small molecular may relate to the treatment of cancer. In ... ...

Abstract	Curcumin is a widely studied polyphenolic compound which has a variety of biological activity as anti-inflammatory and antitumor drugs. Recent research reported that copper chaperone binding with small molecular may relate to the treatment of cancer. In this work, the interaction between curcumin and CopC has been investigated in detail by means of UV-vis absorption, FTIR, CD, fluorescence spectroscopic and molecular docking methods The results showed that the CopC conformation was altered by curcumin with reduction of β-sheet and increase of random coil. Furthermore, curcumin can form a host-guest inclusion supramolecular complex with curcumin, and the forming constant had been calculated to be (2.85±0.21)×10
MeSH term(s)	Bacterial Proteins/chemistry ; Bacterial Proteins/genetics ; Bacterial Proteins/metabolism ; Curcumin/metabolism ; Energy Transfer ; Molecular Docking Simulation ; Mutation ; Protein Binding ; Protein Structure, Secondary ; Protein Unfolding/drug effects ; Spectrum Analysis ; Urea/pharmacology
Chemical Substances	Bacterial Proteins ; CopC protein, Bacteria ; Urea (8W8T17847W) ; Curcumin (IT942ZTH98)
Language	English
Publishing date	2017-03
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	282732-3
ISSN	1879-0003 ; 0141-8130
ISSN (online)	1879-0003
ISSN	0141-8130
DOI	10.1016/j.ijbiomac.2016.11.099
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: N-(4-Bromo-benzyl-idene)naphthalen-1-amine.

Zhu, Ruitao / Ren, Yuehong / Zhang, Yuewen

Acta crystallographica. Section E, Structure reports online

2012 Volume 68, Issue Pt 6, Page(s) o1671

Abstract: The title mol-ecule, C(17)H(12)BrN, is in a E conformation with respect to the C=N bond. The dihedral angle between the naphthalene ring system and the benzene ring is 53.26 (3)°. ...

Abstract	The title mol-ecule, C(17)H(12)BrN, is in a E conformation with respect to the C=N bond. The dihedral angle between the naphthalene ring system and the benzene ring is 53.26 (3)°.
Language	English
Publishing date	2012-05-12
Publishing country	United States
Document type	Journal Article
ZDB-ID	2041947-8
ISSN	1600-5368 ; 1600-5368
ISSN (online)	1600-5368
ISSN	1600-5368
DOI	10.1107/S1600536812019800
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Article: Adaptively Recognizing Parallel-Stranded Duplex Structure for Fluorescent DNA Polarity Analysis

Ye, Mei-Yun / Zhu Rui-Tao / Li Xiang / Zhou Xiao-Shun / Yin Zheng-Zhi / Li Qian / Shao Yong

Analytical chemistry. 2017 Sept. 05, v. 89, no. 17

2017

Abstract: Besides the canonical WatsonâCrick (WC) linked antiparallel-stranded duplex (aps-DNA), DNA is also able to form bioactive parallel-stranded duplex (ps-DNA) with the two involving strands adopting the equal 5â²-3â² polarity. Discriminating ps-DNA from ...

Abstract	Besides the canonical WatsonâCrick (WC) linked antiparallel-stranded duplex (aps-DNA), DNA is also able to form bioactive parallel-stranded duplex (ps-DNA) with the two involving strands adopting the equal 5â²-3â² polarity. Discriminating ps-DNA from aps-DNA with an ideal selectivity is more challenging because of their comparable duplex topologies. Herein, we designed a unique probe of HPIN to fluorescently recognize ps-DNA but to keep an almost nonfluorescent response in binding with aps-DNA. The success of the Hoogsteen hydrogen bonding pattern in lighting up the HPIN fluorescence over the reverse WatsonâCrick (rWC) one suggests the critical role of HPIN in structurally adaptive recognition to the strand polarity-determined base-pairing peculiarity. The turn-on fluorescence should result from restriction of the HPIN cis/trans isomerization upon the adaptive Hoogsteen base pair binding. Such high performance in recognizing ps-DNA against aps-DNA demonstrates the promising applications of HPIN in developing unique DNA polarity-based sensors.
Keywords	DNA ; fluorescence ; hydrogen bonding ; isomerization
Language	English
Dates of publication	2017-0905
Size	p. 8604-8608.
Publishing place	American Chemical Society
Document type	Article
ZDB-ID	1508-8
ISSN	1520-6882 ; 0003-2700
ISSN (online)	1520-6882
ISSN	0003-2700
DOI	10.1021%2Facs.analchem.7b02467
Database	NAL-Catalogue (AGRICOLA)

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