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Article ; Online: Mechanistic Insight into Lewis Acid-Catalyzed Cycloaddition of Bicyclo[1.1.0]butanes with Ketene: Bicyclo[1.1.0]butanes Serving as an Electrophile.

Liu, Dan / Guo, Xuefeng / Zhou, Shaoyuan / Guo, Luxuan / Zhang, Xiaoyong

2024 Volume 89, Issue 2, Page(s) 1241–1248

Abstract: Lewis acid-catalyzed cycloaddition between bicyclo[1.1.0]butanes (BCBs) and unsaturated substrates has recently been demonstrated to be a powerful strategy for synthesizing bicyclo[2.1.1]hexanes. However, their reaction mechanisms remain elusive. This ... ...

Abstract	Lewis acid-catalyzed cycloaddition between bicyclo[1.1.0]butanes (BCBs) and unsaturated substrates has recently been demonstrated to be a powerful strategy for synthesizing bicyclo[2.1.1]hexanes. However, their reaction mechanisms remain elusive. This computational work explored the recently developed TMSOTf-catalyzed cycloaddition of BCB ketone to ketene and determined the rate-determining step as the activation of BCB ketone. Contrary to the previous proposal of BCB enolate as the active species, this work instead identified the catalytically active species to be a partially Lewis acid-activated BCB cation, which shows a greater electrophilicity and larger orbital interactions with ketene compared to those of the pristine BCB. The most favorable reaction pathway uniquely utilizes this activated BCB species as an electrophile to react with ketene as a nucleophile, while the previously proposed enolate is relatively inactive. Moreover, the in situ-generated TfO anion is revealed to be non-innocent, and its coordination mode and orientation could affect the reaction kinetics.
Language	English
Publishing date	2024-01-01
Publishing country	United States
Document type	Journal Article
ZDB-ID	123490-0
ISSN	1520-6904 ; 0022-3263
ISSN (online)	1520-6904
ISSN	0022-3263
DOI	10.1021/acs.joc.3c02452
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Article ; Online: Environmentally stable, photochromic and thermotropic organohydrogels for low cost on-demand optical devices.

Zhang, Zhuo / Guo, Luxuan / Zhang, Xiaolai / Hao, Jingcheng

Journal of colloid and interface science

2020 Volume 578, Page(s) 315–325

Abstract: Hypothesis: The color-changing ability of creatures widely existed in nature has inspired the development of adaptive allochroic materials, which can respond to various external stimuli. Integrating multi-stimuli responsiveness and long-term stability ... ...

Abstract	Hypothesis: The color-changing ability of creatures widely existed in nature has inspired the development of adaptive allochroic materials, which can respond to various external stimuli. Integrating multi-stimuli responsiveness and long-term stability in allochroic system are urgent for practical applications under complex circumstances. Experiments: The photochromic/thermotropic organohydrogels (PTOs) comprised polyacrylamide and cationic cellulose (JR400) were prepared by facile free-radical polymerization and glycerol displacement. The coexisting covalent bonds and noncovalent interactions collaboratively reinforce the networks, endowing the PTOs with boosted stretchability and toughness. Findings: The photochromic ammonium molybdate (Mo
Language	English
Publishing date	2020-06-02
Publishing country	United States
Document type	Journal Article
ZDB-ID	241597-5
ISSN	1095-7103 ; 0021-9797
ISSN (online)	1095-7103
ISSN	0021-9797
DOI	10.1016/j.jcis.2020.05.110
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Article ; Online: Multistimuli-Responsive and Antifreeze Aggregation-Induced Emission-Active Gels Based on CuNCs.

Yuan, Jin / Wu, Wenna / Guo, Luxuan / Hao, Jingcheng / Dong, Shuli

Langmuir : the ACS journal of surfaces and colloids

2021 Volume 38, Issue 1, Page(s) 343–351

Abstract: Multistimuli-responsive fluorescent gelsbased small molecular gelator by supramolecular assembly, possessing excellent dynamic and reversible characteristic, have caused much concern. In this article, aggregation-induced emission-active fluorescence gels ...

Abstract	Multistimuli-responsive fluorescent gelsbased small molecular gelator by supramolecular assembly, possessing excellent dynamic and reversible characteristic, have caused much concern. In this article, aggregation-induced emission-active fluorescence gels (AIE-gels) with chirality were developed by combining Cu nanoclusters (CuNCs) and natural amino acids, l-tryptophan (l-Trp) or d-Tryptophan (d-Trp). In DMSO/H
MeSH term(s)	Amino Acids ; Fluorescence ; Gels ; Hydrogen Peroxide ; Solvents
Chemical Substances	Amino Acids ; Gels ; Solvents ; Hydrogen Peroxide (BBX060AN9V)
Language	English
Publishing date	2021-12-23
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2005937-1
ISSN	1520-5827 ; 0743-7463
ISSN (online)	1520-5827
ISSN	0743-7463
DOI	10.1021/acs.langmuir.1c02592
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Article ; Online: Diuretic resistance in patients with kidney disease: Challenges and opportunities.

Guo, Luxuan / Fu, Baohui / Liu, Yang / Hao, Na / Ji, Yue / Yang, Hongtao

Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie

2022 Volume 157, Page(s) 114058

Abstract: Edema caused by kidney disease is called renal edema. Edema is a common symptom of many human kidney diseases. Patients with renal edema often need to take diuretics.However, After taking diuretics, patients with kidney diseases are prone to kidney ... ...

Abstract	Edema caused by kidney disease is called renal edema. Edema is a common symptom of many human kidney diseases. Patients with renal edema often need to take diuretics.However, After taking diuretics, patients with kidney diseases are prone to kidney congestion, decreased renal perfusion, decreased diuretics secreted by renal tubules, neuroendocrine system abnormalities, abnormal ion transporter transport, drug interaction, electrolyte disorder, and hypoproteinemia, which lead to ineffective or weakened diuretic use and increase readmission rate and mortality. The main causes and coping strategies of diuretic resistance in patients with kidney diseases were described in detail in this report. The common causes of DR included poor diet (electrolyte disturbance and hypoproteinemia due to patients' failure to limit diet according to correct sodium, chlorine, potassium, and protein level) and poor drug compliance (the patient did not take adequate doses of diuretics. true resistance occurs only if the patient takes adequate doses of diuretics, but they are not effective), changes in pharmacokinetics and pharmacodynamics, electrolyte disorders, changes in renal adaptation, functional nephron reduction, and decreased renal blood flow. Common treatment measures include increasing in the diuretic dose and/or frequency, sequential nephron blockade,using new diuretics, ultrafiltration treatment, etc. In clinical work, measures should be taken to prevent or delay the occurrence and development of DR in patients with kidney diseases according to the actual situation of patients and the mechanism of various causes. Currently, there are many studies on DR in patients with heart diseases. Although the phenomenon of DR in patients with kidney diseases is common, there is a relatively little overview of the mechanism and treatment strategy of DR in patients with kidney diseases. Therefore, this paper hopes to show the information on DR in patients with kidney diseases to clinicians and researchers and broaden the research direction and ideas to a certain extent.
Language	English
Publishing date	2022-12-05
Publishing country	France
Document type	Journal Article ; Review
ZDB-ID	392415-4
ISSN	1950-6007 ; 0753-3322 ; 0300-0893
ISSN (online)	1950-6007
ISSN	0753-3322 ; 0300-0893
DOI	10.1016/j.biopha.2022.114058
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Article ; Online: Microscopic Reactivity of Phenylferrate Ions toward Organyl Halides.

Lülf, Stefan / Guo, Luxuan / Parchomyk, Tobias / Harvey, Jeremy N / Koszinowski, Konrad

Chemistry (Weinheim an der Bergstrasse, Germany)

2022 Volume 28, Issue 65, Page(s) e202202030

Abstract: Despite its practical importance, organoiron chemistry remains poorly understood due to its mechanistic complexity. Here, we focus on the oxidative addition of organyl halides to phenylferrate anions in the gas phase. By mass-selecting individual ... ...

Abstract	Despite its practical importance, organoiron chemistry remains poorly understood due to its mechanistic complexity. Here, we focus on the oxidative addition of organyl halides to phenylferrate anions in the gas phase. By mass-selecting individual phenylferrate anions, we can determine the effect of the oxidation state, the ligation, and the nuclearity of the iron complex on its reactions with a series of organyl halides RX. We find that Ph
Language	English
Publishing date	2022-09-19
Publishing country	Germany
Document type	Journal Article
ZDB-ID	1478547-X
ISSN	1521-3765 ; 0947-6539
ISSN (online)	1521-3765
ISSN	0947-6539
DOI	10.1002/chem.202202030
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Article: Multistimuli-Responsive and Antifreeze Aggregation-Induced Emission-Active Gels Based on CuNCs

Yuan, Jin / Wu, Wenna / Guo, Luxuan / Hao, Jingcheng / Dong, Shuli

Langmuir. 2021 Dec. 23, v. 38, no. 1

2021

Abstract	Multistimuli-responsive fluorescent gelsbased small molecular gelator by supramolecular assembly, possessing excellent dynamic and reversible characteristic, have caused much concern. In this article, aggregation-induced emission-active fluorescence gels (AIE-gels) with chirality were developed by combining Cu nanoclusters (CuNCs) and natural amino acids, l-tryptophan (l-Trp) or d-Tryptophan (d-Trp). In DMSO/H₂O mixed solvents, CuNCs can self-assemble to form intertwined fibersbased nanoparticles with numerous pores by introducing Zn²⁺. Fibers as second networks of heteronetwork structures are characterized with the participation of l-Trp or d-Trp for cross-linking to reinforce mechanical strength and chiral regulation of gel networks. Aggregation-induced emission enhancement (AIEE) of CuNCs endows the gels with excellent fluorescent properties by introducing solvents and gelation process. The fluorescent gels exhibit sufficient fluorescence intensity (FI) at −20 °C to −80 °C and possess sensitive responsibility including gel–sol transition and fluorescence behavior for stimuli of mechanical force, heating, pH, H₂O₂, and ethylene diamine tetraacetic acid (EDTA).
Keywords	EDTA (chelating agent) ; crosslinking ; fluorescence ; forces ; gelation ; gels ; optical isomerism ; pH ; strength (mechanics) ; tryptophan
Language	English
Dates of publication	2021-1223
Size	p. 343-351.
Publishing place	American Chemical Society
Document type	Article
ZDB-ID	2005937-1
ISSN	1520-5827 ; 0743-7463
ISSN (online)	1520-5827
ISSN	0743-7463
DOI	10.1021/acs.langmuir.1c02592
Database	NAL-Catalogue (AGRICOLA)

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Article: Colloidal clusters of icosahedrons and face-centred cubes

Wu, Wenna / Wang, Ling / Wang, Yitong / Guo, Luxuan / Dong, Shuli / Hao, Jingcheng

Journal of colloid and interface science. 2020 Mar. 15, v. 563

2020

Abstract: Synthetically colloidal clusters with new functions and well-controlled size distribution can in principle be constructed using colloidal particles. The building units could be integrated into dense-packed and desired structured with novel functions by ... ...

Abstract	Synthetically colloidal clusters with new functions and well-controlled size distribution can in principle be constructed using colloidal particles. The building units could be integrated into dense-packed and desired structured with novel functions by means of an efficient strategy or binding patterns. Here we synthesized colloidal clusters of icosahedrons and long-range ordered face-centered cubes (FCCs) via emulsion self-assembly using fluorescence upconversion nanoparticles NaGdF4: Yb3+, Er3+ as building blocks. The icosahedrons and FCCs structure may generate spontaneously due to an entropy-driven process. The morphology and structure of colloidal clusters have noticeable transformation from icosahedron-like symmetry to FCC symmetry with the increasing size of clusters. Furthermore, the colloidal clusters could be decorated with cationic polyethyleneimine (PEI) via electrostatic interaction. When copper ions are added, the amino groups of PEI could coordinate with Cu2+ forming low toxic PEI-Cu2+ layers, which can further serve as energy receptors to quench upconversion fluorescence with 980 nm laser excitation. Our results reflect that the colloidal clusters not only can serve as a fluorescence platform of detection and analysis but also may represent advancement in the field of colloidal and interface sciences.
Keywords	colloids ; copper ; electrostatic interactions ; emulsions ; energy ; erbium ; fluorescence ; nanoparticles ; polyethyleneimine ; receptors ; toxicity ; ytterbium
Language	English
Dates of publication	2020-0315
Size	p. 308-317.
Publishing place	Elsevier Inc.
Document type	Article
ZDB-ID	241597-5
ISSN	1095-7103 ; 0021-9797
ISSN (online)	1095-7103
ISSN	0021-9797
DOI	10.1016/j.jcis.2019.12.084
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Microgels in biomaterials and nanomedicines.

Wang, Yitong / Guo, Luxuan / Dong, Shuli / Cui, Jiwei / Hao, Jingcheng

Advances in colloid and interface science

2019 Volume 266, Page(s) 1–20

Abstract: Microgels are colloidal particles with crosslinked polymer networks and dimensions ranging from tens of nanometers to micrometers. Specifically, smart microgels are fascinating capable of responding to biological signals in vivo or remote triggers and ... ...

Abstract	Microgels are colloidal particles with crosslinked polymer networks and dimensions ranging from tens of nanometers to micrometers. Specifically, smart microgels are fascinating capable of responding to biological signals in vivo or remote triggers and making the possible for applications in biomaterials and biomedicines. Therefore, how to fundamentally design microgels is an urgent problem to be solved. In this review, we put forward our important fundamental opinions on how to devise the intelligent microgels for cancer therapy, biosensing and biological lubrication. We focus on the design ideas instead of specific implementation process by employing reverse synthesis analysis to programme the microgels at the original stage. Moreover, special insights will be, for the first time, as far as we know, dedicated to the particles completely composed of DNA or proteins into microgel systems. These are discussed in detail in this review. We expect to give readers a broad overview of the design criteria and practical methodologies of microgels according to the application fields, as well as to propel the further developments of highly interesting concepts and materials.
MeSH term(s)	Animals ; Biocompatible Materials/chemical synthesis ; Biocompatible Materials/chemistry ; Drug Design ; Gels ; Humans ; Nanomedicine/methods
Chemical Substances	Biocompatible Materials ; Gels
Language	English
Publishing date	2019-02-08
Publishing country	Netherlands
Document type	Journal Article ; Review
ZDB-ID	210507-x
ISSN	1873-3727 ; 0001-8686
ISSN (online)	1873-3727
ISSN	0001-8686
DOI	10.1016/j.cis.2019.01.005
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Zs.A 2716: Show issues

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Article ; Online: Colloidal clusters of icosahedrons and face-centred cubes.

Wu, Wenna / Wang, Ling / Wang, Yitong / Guo, Luxuan / Dong, Shuli / Hao, Jingcheng

Journal of colloid and interface science

2019 Volume 563, Page(s) 308–317

Abstract	Synthetically colloidal clusters with new functions and well-controlled size distribution can in principle be constructed using colloidal particles. The building units could be integrated into dense-packed and desired structured with novel functions by means of an efficient strategy or binding patterns. Here we synthesized colloidal clusters of icosahedrons and long-range ordered face-centered cubes (FCCs) via emulsion self-assembly using fluorescence upconversion nanoparticles NaGdF
Language	English
Publishing date	2019-12-23
Publishing country	United States
Document type	Journal Article
ZDB-ID	241597-5
ISSN	1095-7103 ; 0021-9797
ISSN (online)	1095-7103
ISSN	0021-9797
DOI	10.1016/j.jcis.2019.12.084
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Article: Aggregation Behavior and Antioxidant Properties of Amphiphilic Fullerene C60 Derivatives Cofunctionalized with Cationic and Nonionic Hydrophilic Groups

Chen, Mengjun / Zhou, Shengju / Guo, Luxuan / Wang, Lin / Yao, Fuxin / Hu, Yuanyuan / Li, Hongguang / Hao, Jingcheng

Langmuir. 2019 May 03, v. 35, no. 21

2019

Abstract: Amphiphilic derivatives of fullerene C60 are attractive from viewpoints of supramolecular chemistry and biomedicine. The establishment of relationships among the molecular structure, aggregation behavior and properties such as scavenging radicals of the ... ...

Abstract	Amphiphilic derivatives of fullerene C60 are attractive from viewpoints of supramolecular chemistry and biomedicine. The establishment of relationships among the molecular structure, aggregation behavior and properties such as scavenging radicals of the amphiphilic C60 derivatives is the key to push these carbon nanomaterials to real applications. In this work, six monosubstituted C60 derivatives were synthesized by a one-step quaternization of their neutral precursors, which bear Percec monodendrons terminated with oligo(poly(ethylene oxide)) (o-PEO) chain(s). The main difference among the C60 derivatives lies in the number and substituted position of the o-PEO chain(s) within the Percec monodendron. Derivative with a 4-substitution of the o-PEO chain still showed limited solubility in water. Other derivatives possessing two or three o-PEO chains exhibited much improved solubilities and rich aggregation behavior in water. It was found that the formation of aggregates is regulated both by the number and the substituted pattern of the o-PEO chains. Typical morphologies include nanosheets, nanowires, vesicles, nanotubes, and nanorods. Although the structures of the C60 derivatives are different from those of traditional surfactants, their aggregation behavior can be also well explained by applying the theory of critical packing parameter. Interestingly, the capabilities of the C60 derivatives to scavenge the hydroxyl radicals (OH·–) followed the same order of their solubility in water, where the compound bearing three o-PEO chains with a 2,3,4-substitution got the champion quenching efficiency of ∼97.79% at a concentration of 0.15 mg·mL–1 (∼0.11 mmol·L–1).
Keywords	antioxidant activity ; chemical structure ; free radicals ; fullerene ; hydrophilicity ; hydroxyl radicals ; medicine ; nanorods ; nanosheets ; nanotubes ; nanowires ; polyethylene glycol ; solubility ; surfactants
Language	English
Dates of publication	2019-0503
Size	p. 6939-6949.
Publishing place	American Chemical Society
Document type	Article
ZDB-ID	2005937-1
ISSN	1520-5827 ; 0743-7463
ISSN (online)	1520-5827
ISSN	0743-7463
DOI	10.1021/acs.langmuir.8b03681
Database	NAL-Catalogue (AGRICOLA)

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