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  1. Article ; Online: Novel D-π-A hemicyanine dye as photoinitiators for in situ hydrogel formation and DLP printing.

    Du, Yao / Zhang, Yating / Liu, Shitao / Zhang, Xiwang / Wang, Tao

    Photochemistry and photobiology

    2024  

    Abstract: The field of biofabrication imposes stringent requirements on the polymerization activity and biosafety of photopolymeric hydrogel systems. In this investigation, we designed and synthesized four hemicyanine dyes with a D-π-A structure specifically ... ...

    Abstract The field of biofabrication imposes stringent requirements on the polymerization activity and biosafety of photopolymeric hydrogel systems. In this investigation, we designed and synthesized four hemicyanine dyes with a D-π-A structure specifically tailored for biofabrication purposes. These novel dyes, incorporating carbazole (CZ), triphenylamine (TPA), anthracene (AN), and benzodithiophene (BDT) as electron donors, along with heterocyclic salt (IN) as electron acceptors, were prepared using a straightforward synthesis method. The absorption maxima of ANIN, CZIN, and TPAIN exceeded 500 nm, rendering them suitable co-initiators for the free radical photopolymerization of acrylates under green-red light exposure facilitated by light-emitting diodes (LEDs) and the co-initiator iodonium salt (ION). Notably, CZIN and TPAIN, due to their robust dye absorption and efficient electron transfer to ION, functioned as high-performance photosensitizers. Meanwhile, BDTIN, with its strong and broad absorption range (400-600 nm), enhanced the accuracy of visible light photopolymerization. These dyes exhibit characteristics such as facile synthesis, heightened photo stability, and non-toxicity and also demonstrate the ability to discern the alkalinity of a solution to some extent. Furthermore, we explored the application of these hemicyanine dyes in 3D printing, showing potential to enhance printing resolution in DLP 3D printing (digital light process 3D printing).
    Language English
    Publishing date 2024-04-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 123540-0
    ISSN 1751-1097 ; 0031-8655
    ISSN (online) 1751-1097
    ISSN 0031-8655
    DOI 10.1111/php.13947
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Characteristics of the Seismic Signal Generated by Fragmental Rockfalls: Insight From Laboratory Experiments

    Lin, Qiwen / Wang, Yufeng / Cheng, Qiangong / Deng, Kaifeng / Liu, Shitao / Li, Kun

    Journal of Geophysical Research: Solid Earth. 2022 Nov., v. 127, no. 11 p.e2022JB025096-

    2022  

    Abstract: Continuous seismic signals are proposed as a useful quantitative information source for the estimation of rockfall properties. However, few studies have examined the characteristics of the seismic signal of fragmentation‐related rockfalls. In this study, ...

    Abstract Continuous seismic signals are proposed as a useful quantitative information source for the estimation of rockfall properties. However, few studies have examined the characteristics of the seismic signal of fragmentation‐related rockfalls. In this study, a series of laboratory experiments designed with crushable analog blocks freefalling and impacting on a thin horizontal plate under different initial conditions (e.g., block volume, strength and fall height) were conducted. Strong correlations are observed between the rockfall properties and the seismic parameters when considering the rock fragmentation during impact. However, these relationships are observed only when the variation in potential energy spans over one order of magnitude, indicating that the application of seismic signals is limited by rockfall properties. In particular, the seismic energy calculated by the diffuse method is the most stable seismic parameter that is highly correlated with the potential energy of rockfalls. By compiling the available data of the seismic signals of both natural and experimental rockfalls from previous studies and our experiments, we found that the relationship between the seismic energy and the potential energy of rockfalls follows a power law model at all scales. The exponent of the power law function ranges from 1.11 to 1.69. Rock strength can significantly affect the seismic features, which are quantitatively discussed. Rock fragmentation acts as an intermediate variable, which is controlled by rockfall properties and consequently affects the corresponding seismic characteristics. Furthermore, rock fragmentation reduces the efficiency of the conversion of potential energy to seismic energy of rockfalls.
    Keywords geophysics ; information sources ; mathematical models ; potential energy ; research ; rockfalls
    Language English
    Dates of publication 2022-11
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ISSN 2169-9313
    DOI 10.1029/2022JB025096
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Novel Sulfonamide Derivatives Containing a Piperidine Moiety as New Bactericide Leads for Managing Plant Bacterial Diseases.

    Xie, Jiao / Long, Zhou-Qing / Chen, Ai-Qun / Ding, Ying-Guo / Liu, Shi-Tao / Zhou, Xiang / Liu, Li-Wei / Yang, Song

    International journal of molecular sciences

    2023  Volume 24, Issue 6

    Abstract: Plant bacterial diseases are an intractable problem due to the fact that phytopathogens have acquired strong resistances for traditional pesticides, resulting in restricting the quality and yield of agricultural products around the world. To develop new ... ...

    Abstract Plant bacterial diseases are an intractable problem due to the fact that phytopathogens have acquired strong resistances for traditional pesticides, resulting in restricting the quality and yield of agricultural products around the world. To develop new agrochemical alternatives, we prepared a novel series of sulfanilamide derivatives containing piperidine fragments and assessed their antibacterial potency. The bioassay results revealed that most molecules displayed excellent in vitro antibacterial potency towards
    MeSH term(s) Dihydropteroate Synthase ; Oxadiazoles/pharmacology ; Microbial Sensitivity Tests ; Oryza/microbiology ; Anti-Bacterial Agents/pharmacology ; Anti-Bacterial Agents/chemistry ; Sulfanilamide ; Xanthomonas ; Sulfonamides/pharmacology ; Piperidines/pharmacology ; Bacterial Infections ; Plant Diseases/prevention & control ; Plant Diseases/microbiology
    Chemical Substances bismerthiazol ; Dihydropteroate Synthase (EC 2.5.1.15) ; Oxadiazoles ; Anti-Bacterial Agents ; Sulfanilamide (21240MF57M) ; Sulfonamides ; Piperidines
    Language English
    Publishing date 2023-03-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms24065861
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Recent progress and outlooks in rhodamine-based fluorescent probes for detection and imaging of reactive oxygen, nitrogen, and sulfur species.

    Yang, Ping / Tang, A-Ling / Tan, Shuai / Wang, Guang-Ye / Huang, Hou-Yun / Niu, Wei / Liu, Shi-Tao / Ge, Mei-Hong / Yang, Lin-Lin / Gao, Feng / Zhou, Xiang / Liu, Li-Wei / Yang, Song

    Talanta

    2024  Volume 274, Page(s) 126004

    Abstract: Reactive oxygen species (ROS), reactive nitrogen species (RNS), and reactive sulfur species (RSS) serve as vital mediators essential for preserving intracellular redox homeostasis within the human body, thereby possessing significant implications across ... ...

    Abstract Reactive oxygen species (ROS), reactive nitrogen species (RNS), and reactive sulfur species (RSS) serve as vital mediators essential for preserving intracellular redox homeostasis within the human body, thereby possessing significant implications across physiological and pathological domains. Nevertheless, deviations from normal levels of ROS, RNS, and RSS disturb redox homeostasis, leading to detrimental consequences that compromise bodily integrity. This disruption is closely linked to the onset of various human diseases, thereby posing a substantial threat to human health and survival. Small-molecule fluorescent probes exhibit considerable potential as analytical instruments for the monitoring of ROS, RNS, and RSS due to their exceptional sensitivity and selectivity, operational simplicity, non-invasiveness, localization capabilities, and ability to facilitate in situ optical signal generation for real-time dynamic analyte monitoring. Due to their distinctive transition from their spirocyclic form (non-fluorescent) to their ring-opened form (fluorescent), along with their exceptional light stability, broad wavelength range, high fluorescence quantum yield, and high extinction coefficient, rhodamine fluorophores have been extensively employed in the development of fluorescent probes. This review primarily concentrates on the investigation of fluorescent probes utilizing rhodamine dyes for ROS, RNS, and RSS detection from the perspective of different response groups since 2016. The scope of this review encompasses the design of probe structures, elucidation of response mechanisms, and exploration of biological applications.
    MeSH term(s) Fluorescent Dyes/chemistry ; Rhodamines/chemistry ; Reactive Nitrogen Species/analysis ; Humans ; Reactive Oxygen Species/metabolism ; Reactive Oxygen Species/analysis ; Optical Imaging ; Animals ; Sulfur/chemistry ; Sulfur/analysis
    Chemical Substances Fluorescent Dyes ; Rhodamines ; Reactive Nitrogen Species ; Reactive Oxygen Species ; Sulfur (70FD1KFU70)
    Language English
    Publishing date 2024-04-01
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 1500969-5
    ISSN 1873-3573 ; 0039-9140
    ISSN (online) 1873-3573
    ISSN 0039-9140
    DOI 10.1016/j.talanta.2024.126004
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Application of dental pulp stem cells in oral maxillofacial tissue engineering.

    Liu, Peng / Zhang, Yingxin / Ma, Yujie / Tan, Shuang / Ren, Bingyi / Liu, Shitao / Dai, HuanYan / Xu, Zhimin

    International journal of medical sciences

    2022  Volume 19, Issue 2, Page(s) 310–320

    Abstract: In the maxillofacial area, soft and hard tissue abnormalities are caused by trauma, tumors, infection, and other causes that expose the maxillofacial region to the surface of the human body. Patients' normal physiological function and appearance are ... ...

    Abstract In the maxillofacial area, soft and hard tissue abnormalities are caused by trauma, tumors, infection, and other causes that expose the maxillofacial region to the surface of the human body. Patients' normal physiological function and appearance are interfered with, and their mental health is adversely impacted, reducing their overall life quality. The pursuit of appropriate medical treatments to correct these abnormalities is thus vital. Autologous stem cell regeneration technology mainly focused on tissues has lately emerged as a significant problem in the medical community. Because of the capacity of dental pulp stem cells (DPSCs) to self-renew, the use of DPSCs from the human pulp tissues of deciduous teeth or permanent teeth has gained popularity among scientists as a stem cell-based therapy option. Aside from that, they are simple to extract and have minimal immunogenicity. As a result, bone tissue engineering may be a critical component in treating maxillofacial and periodontal bone abnormalities. DPSCs activity in maxillofacial and periodontal tissue-engineered bone tissue was investigated in this research.
    MeSH term(s) Dental Pulp/cytology ; Humans ; Stem Cell Transplantation ; Stem Cells/cytology ; Surgery, Oral/methods ; Tissue Engineering/methods
    Language English
    Publishing date 2022-01-11
    Publishing country Australia
    Document type Journal Article ; Review
    ZDB-ID 2151424-0
    ISSN 1449-1907 ; 1449-1907
    ISSN (online) 1449-1907
    ISSN 1449-1907
    DOI 10.7150/ijms.68494
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Discovery of novel rost-4-ene derivatives as potential plant activators for preventing phytopathogenic bacterial infection: Design, synthesis and biological studies.

    Wang, Fang / Liu, Hong-Wu / Zhang, Ling / Liu, Shi-Tao / Zhang, Jun-Rong / Zhou, Xiang / Wang, Pei-Yi / Yang, Song

    Pest management science

    2022  Volume 78, Issue 8, Page(s) 3404–3415

    Abstract: Background: Gradually aggravated disease caused by phytopathogenic bacteria severely restricts food security and crop yield, and few pesticides can relieve this severe situation. Thus, development and excavation of new agrochemicals with high ... ...

    Abstract Background: Gradually aggravated disease caused by phytopathogenic bacteria severely restricts food security and crop yield, and few pesticides can relieve this severe situation. Thus, development and excavation of new agrochemicals with high bioactivity and novel action mechanism may be a feasible strategy to control intractable bacterial diseases. As a privileged molecular framework, steroid molecules exhibit diversiform bioactivities. Herein, a series of novel androst-4-ene derivatives were designed, synthesised and investigated for their antibacterial behaviour to excavate novel agrochemicals on the base of steroid molecules.
    Results: Bioassay results indicated that target compounds displayed high bioactivities toward three destructive phytopathogenic bacteria, including Xanthomonas oryzae pv. oryzae (Xoo), Xanthomonas axonopodis pv. citri (Xac) and Pseudomonas syringae pv. actinidiae (Psa). Compound III
    Conclusion: Given these profiles of target compounds, we highlight a new strategy for controlling intractable plant bacterial diseases by inducing plant resistance and targeting the bacterial cell membrane. © 2022 Society of Chemical Industry.
    MeSH term(s) Agrochemicals ; Anti-Bacterial Agents ; Bacterial Infections ; Microbial Sensitivity Tests ; Oryza ; Oxadiazoles/chemistry ; Plant Diseases/prevention & control ; Xanthomonas
    Chemical Substances Agrochemicals ; Anti-Bacterial Agents ; Oxadiazoles
    Language English
    Publishing date 2022-05-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 2001705-4
    ISSN 1526-4998 ; 1526-498X
    ISSN (online) 1526-4998
    ISSN 1526-498X
    DOI 10.1002/ps.6981
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Discovery of novel rost‐4‐ene derivatives as potential plant activators for preventing phytopathogenic bacterial infection: Design, synthesis and biological studies

    Wang, Fang / Liu, Hong‐Wu / Zhang, Ling / Liu, Shi‐Tao / Zhang, Jun‐Rong / Zhou, Xiang / Wang, Pei‐Yi / Yang, Song

    Pest management science. 2022 Aug., v. 78, no. 8

    2022  

    Abstract: BACKGROUND: Gradually aggravated disease caused by phytopathogenic bacteria severely restricts food security and crop yield, and few pesticides can relieve this severe situation. Thus, development and excavation of new agrochemicals with high bioactivity ...

    Abstract BACKGROUND: Gradually aggravated disease caused by phytopathogenic bacteria severely restricts food security and crop yield, and few pesticides can relieve this severe situation. Thus, development and excavation of new agrochemicals with high bioactivity and novel action mechanism may be a feasible strategy to control intractable bacterial diseases. As a privileged molecular framework, steroid molecules exhibit diversiform bioactivities. Herein, a series of novel androst‐4‐ene derivatives were designed, synthesised and investigated for their antibacterial behaviour to excavate novel agrochemicals on the base of steroid molecules. RESULTS: Bioassay results indicated that target compounds displayed high bioactivities toward three destructive phytopathogenic bacteria, including Xanthomonas oryzae pv. oryzae (Xoo), Xanthomonas axonopodis pv. citri (Xac) and Pseudomonas syringae pv. actinidiae (Psa). Compound III₁₉ displayed excellent in vitro antibacterial profiling (EC₅₀ = 2.37 mg L⁻¹ towards Xoo, EC₅₀ = 2.10 mg L⁻¹ towards Xac, EC₅₀ = 9.50 mg L⁻¹ towards Psa). Furthermore, compound III₁₉ showed outstanding in vivo protective activities, with values of 81.81% and 58.75% towards kiwifruit bacterial canker and rice bacterial leaf blight, respectively. Analysis of the antibacterial mechanism disclosed that compound III₁₉ enhanced host defence enzyme activities superoxide dismutase (SOD), peroxidase (POD), phenylalanine ammonia lyase (PAL), polyphenol oxidase (PPO), and catalase (CAT) and increased the salicylate synthase content to induce host resistance. In addition, compound III₁₉ increased the membrane permeability, destroyed the cell membrane and killed the bacteria. CONCLUSION: Given these profiles of target compounds, we highlight a new strategy for controlling intractable plant bacterial diseases by inducing plant resistance and targeting the bacterial cell membrane. © 2022 Society of Chemical Industry.
    Keywords Pseudomonas syringae pv. actinidiae ; Xanthomonas axonopodis pv. citri ; Xanthomonas oryzae pv. oryzae ; agrochemicals ; antibacterial properties ; bacterial canker ; bacterial infections ; bioassays ; catalase ; catechol oxidase ; cell membranes ; crop yield ; food security ; kiwifruit ; leaf blight ; membrane permeability ; peroxidase ; phenylalanine ammonia-lyase ; superoxide dismutase
    Language English
    Dates of publication 2022-08
    Size p. 3404-3415.
    Publishing place John Wiley & Sons, Ltd.
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 2001705-4
    ISSN 1526-4998 ; 1526-498X
    ISSN (online) 1526-4998
    ISSN 1526-498X
    DOI 10.1002/ps.6981
    Database NAL-Catalogue (AGRICOLA)

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  8. Article ; Online: Rhodamine-based fluorescent sensors for the rapid and selective off-on detection of salicylic acid and their use in plant cell imaging.

    Chen, Jie-Ying / Yang, Ping / Huang, Hou-Yun / Tang, A-Ling / Ge, Mei-Hong / Niu, Wei / Liu, Shi-Tao / Tan, Shuai / Ma, Wen-Jing / Zhou, Xiang / Liu, Li-Wei / Yang, Song

    Organic & biomolecular chemistry

    2023  Volume 21, Issue 33, Page(s) 6783–6788

    Abstract: Salicylic acid (SA) is a key hormone that regulates plant growth and immunity, and understanding the physiologic processes induced by SA enables the development of highly pathogen-resistant crops. Here, we report the synthesis of three new SA-sensors (R1- ...

    Abstract Salicylic acid (SA) is a key hormone that regulates plant growth and immunity, and understanding the physiologic processes induced by SA enables the development of highly pathogen-resistant crops. Here, we report the synthesis of three new SA-sensors (R1-R3) from hydroxyphenol derivatives of a rhodamine-acylhydrazone scaffold and their characterization by NMR and HRMS. Spectroscopic analyses revealed that structural variations in R1-R3 resulted in sensors with different sensitivities for SA. Sensor R2 (with the 3-hydroxyphenyl modification) outperformed R1 (2-hydroxyphenyl) and R3 (4-hydroxyphenyl). The SA-detection limit of R2 is 0.9 μM with an ultra-fast response time (<60 s). In addition, their plant imaging indicated that designed sensor R2 is useful for the further study of SA biology and the discovery and development of new inducers of plant immunity.
    MeSH term(s) Rhodamines/chemistry ; Salicylic Acid/analysis ; Salicylic Acid/chemistry ; Plant Cells/chemistry ; Coloring Agents ; Plants
    Chemical Substances Rhodamines ; Salicylic Acid (O414PZ4LPZ) ; Coloring Agents
    Language English
    Publishing date 2023-08-23
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2097583-1
    ISSN 1477-0539 ; 1477-0520
    ISSN (online) 1477-0539
    ISSN 1477-0520
    DOI 10.1039/d3ob01052j
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Substituent-controlled chemoselective synthesis of multi-substituted pyridones via a one-pot three-component cascade reaction.

    Liu, Shitao / Li, Jisen / Lin, Junjie / Liu, Fujun / Liu, Teng / Huang, Chao

    Organic & biomolecular chemistry

    2020  Volume 18, Issue 6, Page(s) 1130–1134

    Abstract: An efficient and concise one-pot strategy for the synthesis of multisubstituted pyridones via a one-pot three-component cascade reaction catalyzed by ... ...

    Abstract An efficient and concise one-pot strategy for the synthesis of multisubstituted pyridones via a one-pot three-component cascade reaction catalyzed by Cs
    Language English
    Publishing date 2020-01-20
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2097583-1
    ISSN 1477-0539 ; 1477-0520
    ISSN (online) 1477-0539
    ISSN 1477-0520
    DOI 10.1039/c9ob02456e
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Highly Selective and Rapid "Turn-On" Fluorogenic Chemosensor for Detection of Salicylic Acid in Plants and Food Samples.

    Chen, Jie-Ying / Tang, A-Ling / Yang, Ping / Yang, Lin-Lin / Tan, Shuai / Ma, Wen-Jing / Liu, Shi-Tao / Huang, Hou-Yun / Zhou, Xiang / Liu, Li-Wei / Yang, Song

    ACS sensors

    2023  Volume 8, Issue 11, Page(s) 4020–4030

    Abstract: Salicylic acid (SA) is one of the chemical molecules, involved in plant growth and immunity, thereby contributing to the control of pests and pathogens, and even applied in fruit and vegetable preservation. However, only a few tools have ever been ... ...

    Abstract Salicylic acid (SA) is one of the chemical molecules, involved in plant growth and immunity, thereby contributing to the control of pests and pathogens, and even applied in fruit and vegetable preservation. However, only a few tools have ever been designed or executed to understand the physiological processes induced by SA or its function in plant immunity and residue detection in food. Hence, three Rh6G-based fluorogenic chemosensors were synthesized to detect phytohormone SA based on the "OFF-ON" mechanism. The probes showed high selectivity, ultrafast response time (<60 s), and nanomolar detection limit for SA. Moreover, the probe possessed outstanding profiling that can be successfully used for SA imaging of callus and plants. Furthermore, the fluorescence pattern indicated that SA could occur in the distal transport in plants. These remarkable results contribute to improving our understanding of the multiple physiological and pathological processes involved in SA for plant disease diagnosis and for the development of immune activators. In addition, SA detection in some agricultural products used probes to extend the practical application because its use is prohibited in some countries and is harmful to SA-sensitized persons. Interestingly, the as-obtained test paper displayed that SA could be imaged by ultraviolet (UV) and was directly visible to the naked eye. Given the above outcomes, these probes could be used to monitor SA in vitro and in vivo, including, but not limited to, plant biology, food residue detection, and sewage detection.
    MeSH term(s) Salicylic Acid/chemistry ; Salicylic Acid/pharmacology ; Plant Growth Regulators/chemistry
    Chemical Substances Salicylic Acid (O414PZ4LPZ) ; Plant Growth Regulators
    Language English
    Publishing date 2023-11-02
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2379-3694
    ISSN (online) 2379-3694
    DOI 10.1021/acssensors.3c00159
    Database MEDical Literature Analysis and Retrieval System OnLINE

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