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  1. Article ; Online: Insights into the computer-aided drug design and discovery based on anthraquinone scaffold for cancer treatment: A protocol for systematic review.

    Chua, Hui Ming / Moshawih, Said / Goh, Hui Poh / Ming, Long Chiau / Kifli, Nurolaini

    PloS one

    2023  Volume 18, Issue 9, Page(s) e0290948

    Abstract: There is still unmet medical need in cancer treatment mainly due to drug resistance and adverse drug events. Therefore, the search for better drugs is essential. Computer-aided drug design (CADD) and discovery tools are useful to streamline the lengthy ... ...

    Abstract There is still unmet medical need in cancer treatment mainly due to drug resistance and adverse drug events. Therefore, the search for better drugs is essential. Computer-aided drug design (CADD) and discovery tools are useful to streamline the lengthy and costly drug development process. Anthraquinones are a group of naturally occurring compounds with unique scaffold that exert various biological properties including anticancer activities. This protocol describes a systematic review that provide insights into the computer-aided drug design and discovery based on anthraquinone scaffold for cancer treatment. It was prepared in accordance with the "Preferred reporting items for systematic review and meta-analysis protocols (PRISMA-P) 2015 guidelines, and published in the "International prospective register of systematic reviews" database (PROSPERO: CRD42023432904). Search strategies will be developed based on the combination of relevant keywords and executed in PubMed, Scopus, Web of Science and MedRxiv. Only original studies that employed CADD as primary tool in virtual screening for the purpose of designing or discovering anti-cancer drugs involving anthraquinone scaffold published in English language will be included. Two independent reviewers will be involved to screen and select the papers, extract the data and assess the risk of bias. Apart from exploring the trends and types of CADD methods used, the target proteins of these compounds in cancer treatment will also be revealed in this review. It is believed that the outcome of this study could be utilized to support the ongoing research in similar area with better quality and greater probability of success, consequently optimizing the resources in subsequent in vitro, in vivo, non-clinical and clinical development. It will also serve as an evidence based scientific guide for new research to design novel anthraquinone-derived drug with improved efficacy and safety profile for cancer treatment.
    MeSH term(s) Humans ; Anthraquinones/pharmacology ; Drug Design ; Meta-Analysis as Topic ; Neoplasms/drug therapy ; Systematic Reviews as Topic
    Chemical Substances 9,10-anthraquinone (030MS0JBDO) ; Anthraquinones
    Language English
    Publishing date 2023-09-01
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0290948
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Hydrolytic degradation and biodegradation of polylactic acid electrospun fibers.

    Soo, Xiang Yun Debbie / Jia, Linran / Lim, Qi Feng / Chua, Ming Hui / Wang, Suxi / Hui, Hui Kim / See, Jia Min Regine / Chen, Yunjie / Li, Jiuwei / Wei, Fengxia / Tomczak, Nikodem / Kong, Junhua / Loh, Xian Jun / Fei, Xunchang / Zhu, Qiang

    Chemosphere

    2024  Volume 350, Page(s) 141186

    Abstract: Increased use of bioplastics, such as polylactic acid (PLA), helps in reducing greenhouse gas emissions, decreases energy consumption and lowers pollution, but its degradation efficiency has much room for improvement. The degradation rate of electrospun ... ...

    Abstract Increased use of bioplastics, such as polylactic acid (PLA), helps in reducing greenhouse gas emissions, decreases energy consumption and lowers pollution, but its degradation efficiency has much room for improvement. The degradation rate of electrospun PLA fibers of varying diameters ranging from 0.15 to 1.33 μm is measured during hydrolytic degradation under different pH from 5.5 to 10, and during aerobic biodegradation in seawater supplemented with activated sewage sludge. In hydrolytic conditions, varying PLA fiber diameter had significant influence over percentage weight loss (W
    MeSH term(s) Polyesters/chemistry ; Hydrolysis ; Microscopy, Electron, Scanning
    Chemical Substances poly(lactide) (459TN2L5F5) ; Polyesters
    Language English
    Publishing date 2024-01-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2024.141186
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Aggregation-Induced Emission-Active Nanostructures: Beyond Biomedical Applications.

    Chua, Ming Hui / Chin, Kang Le Osmund / Loh, Xian Jun / Zhu, Qiang / Xu, Jianwei

    ACS nano

    2023  Volume 17, Issue 3, Page(s) 1845–1878

    Abstract: The discovery of aggregation-induced emission (AIE) phenomenon in 2001 has had a significant impact on materials development across different research disciplines. AIE-active materials have been widely exploited for various applications in ... ...

    Abstract The discovery of aggregation-induced emission (AIE) phenomenon in 2001 has had a significant impact on materials development across different research disciplines. AIE-active materials have been widely exploited for various applications in optoelectronics, sensing, biomedical, and stimuli-responsive systems, etc. This is made possible by integrating AIE features with other fields of science and engineering, such as nanoscience and nanotechnology. AIE has been extensively employed, particularly for biomedical applications, such as biosensing, bioimaging, and theranostics. However, development of AIE-based nanotechnology for other applications is comparatively less, although there have been increasing research activities in recent years. Given the significance and potential of the marriage between AIE hallmark and nanotechnology in AIE-active materials development, this review article summarizes and showcases the latest research efforts in AIE-based nanomaterials, including nanomaterials synthesis and their nonbiomedical applications, such as sensing, optoelectronics, functional coatings, and stimuli-responsive systems. A perspective on the outlook of AIE-based nanostructured materials and relevant nanotechnology for nonbiomedical applications will be provided, giving an insight into how to design AIE-active nanostructures as well as their applications beyond the biomedical domain.
    MeSH term(s) Fluorescent Dyes/chemistry ; Nanostructures ; Nanotechnology
    Chemical Substances Fluorescent Dyes
    Language English
    Publishing date 2023-01-19
    Publishing country United States
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ISSN 1936-086X
    ISSN (online) 1936-086X
    DOI 10.1021/acsnano.2c10826
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Enhancing the photocatalytic upcycling of polystyrene to benzoic acid: a combined computational-experimental approach for acridinium catalyst design.

    Ong, Albert / Wong, Zi Cheng / Chin, Kang Le Osmund / Loh, Wei Wei / Chua, Ming Hui / Ang, Shi Jun / Lim, Jason Y C

    Chemical science

    2023  Volume 15, Issue 3, Page(s) 1061–1067

    Abstract: Converting polystyrene into value-added oxygenated aromatic compounds is an attractive end-of-life upcycling strategy. However, identification of appropriate catalysts often involves laborious and time-consuming empirical screening. Herein, after ... ...

    Abstract Converting polystyrene into value-added oxygenated aromatic compounds is an attractive end-of-life upcycling strategy. However, identification of appropriate catalysts often involves laborious and time-consuming empirical screening. Herein, after demonstrating the feasibility of using acridinium salts for upcycling polystyrene into benzoic acid by photoredox catalysis for the first time, we applied low-cost descriptor-based combinatorial
    Language English
    Publishing date 2023-12-18
    Publishing country England
    Document type Journal Article
    ZDB-ID 2559110-1
    ISSN 2041-6539 ; 2041-6520
    ISSN (online) 2041-6539
    ISSN 2041-6520
    DOI 10.1039/d3sc06388g
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Synthesis of Conjugated Polymers via Transition Metal Catalysed C-H Bond Activation.

    Chua, Ming Hui / Png, Zhuang Mao / Zhu, Qiang / Xu, Jianwei

    Chemistry, an Asian journal

    2021  Volume 16, Issue 19, Page(s) 2896–2919

    Abstract: Transition metal catalysed C-H bond activation chemistry has emerged as an exciting and promising approach in organic synthesis. This allows us to synthesize a wider range of functional molecules and conjugated polymers in a more convenient and more atom ...

    Abstract Transition metal catalysed C-H bond activation chemistry has emerged as an exciting and promising approach in organic synthesis. This allows us to synthesize a wider range of functional molecules and conjugated polymers in a more convenient and more atom economical way. The formation of C-C bonds in the construction of pi-conjugated systems, particularly for conjugated polymers, has benefited much from the advances in C-H bond activation chemistry. Compared to conventional transition-metal catalysed cross-coupling polymerization such as Suzuki and Stille cross-coupling, pre-functionalization of aromatic monomers, such as halogenation, borylation and stannylation, is no longer required for direct arylation polymerization (DArP), which involve C-H/C-X cross-coupling, and oxidative direct arylation polymerization (Ox-DArP), which involves C-H/C-H cross-coupling protocols driven by the activation of monomers' C(sp
    Language English
    Publishing date 2021-09-03
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 2233006-9
    ISSN 1861-471X ; 1861-4728
    ISSN (online) 1861-471X
    ISSN 1861-4728
    DOI 10.1002/asia.202100749
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Recent Advances in Aggregation-Induced Emission Chemosensors for Anion Sensing.

    Chua, Ming Hui / Shah, Kwok Wei / Zhou, Hui / Xu, Jianwei

    Molecules (Basel, Switzerland)

    2019  Volume 24, Issue 15

    Abstract: The discovery of the aggregation-induced emission (AIE) phenomenon in the early 2000s not only has overcome persistent challenges caused by traditional aggregation-caused quenching (ACQ), but also has brought about new opportunities for the development ... ...

    Abstract The discovery of the aggregation-induced emission (AIE) phenomenon in the early 2000s not only has overcome persistent challenges caused by traditional aggregation-caused quenching (ACQ), but also has brought about new opportunities for the development of useful functional molecules. Through the years, AIE luminogens (AIEgens) have been widely studied for applications in the areas of biomedical and biological sensing, chemosensing, optoelectronics, and stimuli responsive materials. Particularly in the application of chemosensing, a myriad of novel AIE-based sensors has been developed to detect different neutral molecular, cationic and anionic species, with a rapid detection time, high sensitivity and high selectivity by monitoring fluorescence changes. This review thus summarises the recent development of AIE-based chemosensors for the detection of anionic species, including halides and halide-containing anions, cyanides, and sulphur-, phosphorus- and nitrogen- containing anions, as well as a few other anionic species, such as citrate, lactate and anionic surfactants.
    MeSH term(s) Anions/analysis ; Anions/chemistry ; Fluorescent Dyes ; Halogens/analysis ; Halogens/chemistry ; Luminescent Measurements/methods ; Photochemical Processes
    Chemical Substances Anions ; Fluorescent Dyes ; Halogens
    Language English
    Publishing date 2019-07-25
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules24152711
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Influence of glycan structure on the colonization of

    Chun, Ye-Yu / Tan, Kai Sen / Yu, Lisa / Pang, Michelle / Wong, Ming Hui Millie / Nakamoto, Rei / Chua, Wan-Zhen / Huee-Ping Wong, Amanda / Lew, Zhe Zhang Ryan / Ong, Hsiao Hui / Chow, Vincent T / Tran, Thai / Yun Wang, De / Sham, Lok-To

    Proceedings of the National Academy of Sciences of the United States of America

    2023  Volume 120, Issue 13, Page(s) e2213584120

    Abstract: Virtually all living cells are encased in glycans. They perform key cellular functions such as immunomodulation and cell-cell recognition. Yet, how their composition and configuration affect their functions remains enigmatic. Here, we constructed ... ...

    Abstract Virtually all living cells are encased in glycans. They perform key cellular functions such as immunomodulation and cell-cell recognition. Yet, how their composition and configuration affect their functions remains enigmatic. Here, we constructed isogenic capsule-switch mutants harboring 84 types of capsular polysaccharides (CPSs) in
    MeSH term(s) Humans ; Streptococcus pneumoniae/genetics ; Streptococcus pneumoniae/metabolism ; Epithelial Cells ; Respiratory System ; Polysaccharides/metabolism ; Nose
    Chemical Substances Polysaccharides
    Language English
    Publishing date 2023-03-21
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 209104-5
    ISSN 1091-6490 ; 0027-8424
    ISSN (online) 1091-6490
    ISSN 0027-8424
    DOI 10.1073/pnas.2213584120
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: A study of Singapore adolescent girls' selfie practices, peer appearance comparisons, and body esteem on Instagram.

    Chang, Leanne / Li, Pengxiang / Loh, Renae Sze Ming / Chua, Trudy Hui Hui

    Body image

    2019  Volume 29, Page(s) 90–99

    Abstract: Social media allow users to play multiple roles as receivers, exhibitors, and evaluators of idealized images through photo browsing, posting, and editing. In this study, we examined the associations between adolescent girls' various types of Instagram ... ...

    Abstract Social media allow users to play multiple roles as receivers, exhibitors, and evaluators of idealized images through photo browsing, posting, and editing. In this study, we examined the associations between adolescent girls' various types of Instagram selfie practices and their body esteem. The mediating role of appearance comparisons and the moderating role of direction of comparisons were also tested. A survey was distributed to 303 adolescent girls from three secondary schools in Singapore. Results indicated that the negative associations between participants' photo browsing and editing behaviors and body esteem were fully mediated by peer appearance comparisons. Contrarily, selfie posting had a direct and positive association with body esteem that was not mediated by peer appearance comparisons. The findings suggested that objectifying standards of beauty may permeate adolescent girls' value systems through frequent appearance comparisons on social media. When peer influence was presented in the form of appearance comparisons, it had a strong negative association with body esteem, regardless of the direction of the comparisons involved. The positive relationship between selfie posting and body esteem suggested that peer interactions may benefit adolescent girls' body image development in specific ways that warrants further inquiry.
    MeSH term(s) Adolescent ; Adolescent Behavior/psychology ; Beauty ; Body Image/psychology ; Child ; Female ; Humans ; Peer Group ; Schools ; Self Concept ; Singapore ; Social Media/statistics & numerical data
    Language English
    Publishing date 2019-03-15
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2211449-X
    ISSN 1873-6807 ; 1740-1445
    ISSN (online) 1873-6807
    ISSN 1740-1445
    DOI 10.1016/j.bodyim.2019.03.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Recent Advances in Aggregation-Induced Emission Chemosensors for Anion Sensing

    Ming Hui Chua / Kwok Wei Shah / Hui Zhou / Jianwei Xu

    Molecules, Vol 24, Iss 15, p

    2019  Volume 2711

    Abstract: The discovery of the aggregation-induced emission (AIE) phenomenon in the early 2000s not only has overcome persistent challenges caused by traditional aggregation-caused quenching (ACQ), but also has brought about new opportunities for the development ... ...

    Abstract The discovery of the aggregation-induced emission (AIE) phenomenon in the early 2000s not only has overcome persistent challenges caused by traditional aggregation-caused quenching (ACQ), but also has brought about new opportunities for the development of useful functional molecules. Through the years, AIE luminogens (AIEgens) have been widely studied for applications in the areas of biomedical and biological sensing, chemosensing, optoelectronics, and stimuli responsive materials. Particularly in the application of chemosensing, a myriad of novel AIE-based sensors has been developed to detect different neutral molecular, cationic and anionic species, with a rapid detection time, high sensitivity and high selectivity by monitoring fluorescence changes. This review thus summarises the recent development of AIE-based chemosensors for the detection of anionic species, including halides and halide-containing anions, cyanides, and sulphur-, phosphorus- and nitrogen-containing anions, as well as a few other anionic species, such as citrate, lactate and anionic surfactants.
    Keywords aggregation–induced emission (AIE) ; anion ; chemosensor ; detection ; sensing ; Organic chemistry ; QD241-441
    Subject code 540
    Language English
    Publishing date 2019-07-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Thioxanthylium Cations: Highly Reversible Hydrochromic Mate-rials with Tunable Color and Moisture Sensitivity.

    Chua, Ming Hui / Soo, Xiang Yun Debbie / Goh, Wei Peng / Png, Zhuang Mao / Zhu, Qiang / Xu, Jianwei

    Chemistry (Weinheim an der Bergstrasse, Germany)

    2022  Volume 28, Issue 65, Page(s) e202201975

    Abstract: Hydrochromic materials, which change color in response to moisture, are highly sought-after due to some unique applications such as moisture detection, humidity monitoring, anti-counterfeiting, and sweat-pore mapping. We herein report a new thioxanthene- ... ...

    Abstract Hydrochromic materials, which change color in response to moisture, are highly sought-after due to some unique applications such as moisture detection, humidity monitoring, anti-counterfeiting, and sweat-pore mapping. We herein report a new thioxanthene-9-ols/thioxanthylium cations hydrochromic system. The hydrochromic thioxanthylium cations can be generated/regenerated by exposing a chemically stable thioxanthene-9-ol to trifluoroacetic acid (TFA). The intensely colored thioxanthylium cations can be chemically reverted to the colorless thioxanthene-9-ol. Interestingly, the conversion between thioxanthene-9-ol and its cation species was found to be highly reversible in most cases (up to 50 activation-deactivation cycles). The color and moisture-sensitivity of thioxanthylium cations were also validated to be tunable via functionalization of the thioxanthene core with different aliphatic and aromatic groups at its 9 or 2,7-positions. Finally, paper probes were prepared using solution-immersion and inkjet-printing techniques to demonstrate the system's potential applications in humidity sensing and anti-counterfeiting.
    Language English
    Publishing date 2022-09-20
    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.202201975
    Database MEDical Literature Analysis and Retrieval System OnLINE

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