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| 1 | 黑磷量子点/g-C_3N_4复合光催化剂的制备及其增强的光催化还原CO_2到CO性能(英文)显示文摘开发还原二氧化碳生成燃料和有价值化学品的低成本、非金属半导体光催化剂,是减少二氧化碳浓度的一种有效方案.本工作通过简单的静电吸附方法成功地将黑磷量子点(BPQDs)分散在石墨相氮化碳(g-C_3N_4)载体上,成功制备了BP@g-C_3N_4复合材料,并对其在紫外-可见光激发下光催化还原CO_2的性能进行了研究.电化学表征,瞬态吸收光谱和荧光光谱数据表明BPQDs的负载提高了g-C_3N_4的载流子分离效率.在氙灯的照射下,与g-C_3N_4(CO的生成速率为2.1μmol g^(-1)h^(-1))相比,BP@g-C_3N_4复合材料光催化还原CO_2活性显著提高(当BPQDs的负载量为1 wt%时,CO的生成速率为6.54μmol g^(-1)h^(-1)).本工作发展了一种新型的可还原CO_2的非金属基光催化剂. | 韩春秋 李珏 马照宇 谢海泉 Geoffrey I.N.Waterhouse 叶立群 张铁锐 | 2018 | Science China Materials2018,61,9: | 17 |
| 2 | Fermentation-enabled wellness foods:A fresh perspective显示文摘Fermented foods represent an important segment of current food markets,especially traditional or ethnic food markets.The demand for efficient utilization of agrowastes,together with advancements in fermentation technologies(microbial-and enzyme-based processing),are stimulating rapid growth and innovation in the fermented food sector.In addition,the health-promoting benefits of fermented foods are attracting increasingly attention.The microorganisms contained in many common fermented foods can serve as“microfactories”to generate nutrients and bioactives with specific nutritional and health functionalities.Herein,recent research relating to the manufacture of fermented foods are critically reviewed,placing emphasis on the potential health benefits of fermentation-enabled wellness foods.The importance of the correct selection of microorganisms and raw materials and the need for precise control of fermentation processes are explored.Major knowledge gaps and obstacles to fermented food production and market penetration are discussed.The importance of integrating multidisciplinary knowledge,communicating with consumers,establishing regulatory frameworks specifically for fermentation-enabled wellness foods and functional fermented foods,are highlighted. | Huan Xiang Dongxiao Sun-Waterhouse Geoffrey I.N.Waterhouse Chun Cui Zheng Ruan | 2019 | Food Science and Human Wellness2019,8,3: | 12 |
| 3 | Large-scale synthesis of N-doped carbon capsules supporting atomically dispersed iron for efficient oxygen reduction reaction electrocatalysis显示文摘The large-scale synthesis of platinum-free electrocatalysts for the oxygen reduction reaction(ORR)remains a grand challenge.We report the large-scale production of stable and active ORR electrocatalysts based on iron,an earth-abundant element.A core–shell zeolitic imidazolate framework–tannic acid coordination polymer composite(ZIF-8@K-TA)was utilized as the catalyst precursor,which was transformed into iron atoms dispersed in hollow porous nitrogen-doped carbon capsules(H-Fe-N_(x)-C)through ion exchange and pyrolysis.H-Fe-N_(x)-C fea-tures site-isolated single-atom iron centers coordinated to nitrogen in graphitic layers,high levels of nitrogen doping,and high permeability to incoming gases.Benefiting from these characteristics,H-Fe-N_(x)-C demonstrated efficient electrocatalytic activity(E_(1/2)=0.92 V,vs.RHE)and stability towards the ORR in both alkaline and acidic media.In ORR performance,it surpassed the majority of recently reported Fe-N-C catalysts and the standard Pt/C catalyst.In addition,H-Fe-N_(x)-C showed outstanding tolerance to methanol. | Hui Yang Yanfang Liu Xiaolu Liu Xiangke Wang He Tian Geoffrey I.N.Waterhouse Paul E.Krugere Shane GTelfer Shengqian Ma | 2022 | eScience2022,2,2: | 4 |
| 4 | 联吡啶嗡盐共价有机框架材料合成与选择性捕获放射性高鍀酸根显示文摘具有高比表面积及规则孔道结构的离子型共价有机框架(COF)材料表现出广泛的应用前景.本文设计合成了一种基于联吡啶嗡盐的阳离子型COF材料(PS-COF-1).PS-COF-1比表面积为2703 m^(2) g^(-1),高于目前报道的其他离子型COF材料.PS-COF-1具有固定的一维通道(~4.5 nm)、良好的化学稳定性和耐辐照稳定性,表现出优异的吸附ReO_(4)^(-)(最大吸附量为1262 mg g^(-1))和^(99)TcO_(4)^(-)性能.进一步研究表明,PS-COF-1在高离子强度下表现出快速吸附动力学、高吸附容量和对^(99)TcO_(4)^(-)和ReO_(4)^(-)的高选择性,在模拟美国汉福德低活性废物流条件下成功选择性去除了^(99)TcO_(4)^(-).此外,PS-COF-1能够在10 min内将ReO_(4)^(-)和^(99)TcO_(4)^(-)污染水净化至饮用水级别.密度泛函理论计算表明,PS-COF-1对低电荷密度阴离子ReO_(4)^(-)和^(99)TcO_(4)^(-)具有强的亲和力(优于其他常见阴离子,如Cl^(-),NO_(3)^(-),SO_(4)^(2-),CO_(3)^(2-)),阐明了PS-COF-选择性吸附^(99)TcO_(4)^(-)的机理.本文展示了一种用于选择性捕获放射性核素新型阳离子COF吸附剂,为放射性污染治理提供了重要的理论依据和指导. | Mengjie Hao Zhongshan Chen Hui Yang Geoffrey I.N.Waterhouse Shengqian Ma Xiangke Wang | 2022 | Science Bulletin2022,67,9: | 3 |
| 5 | Ultrafine monolayer Co-containing layered double hydroxide nanosheets for water oxidation显示文摘For many two-dimensional(2D)materials,low coordination edges and corner sites offer greatly enhanced catalytic performance compared to basal sites,motivating the search for new synthetic approaches towards ultrathin and ultrafine 2D nanomaterials with high specific surface areas.To date,the synthesis of catalysts that are both ultrathin(monolayer)and ultrafine(lateral size<10nm)has proven extremely challenging.Herein,using a facile ultrasonic exfoliation procedure,we describe the successful synthesis of ultrafine ZnCo-LDH nanosheets(denoted as ZnCo-UF)with a size^3.5 nm and thickness^0.5 nm.The single layer ZnCo-UF nanosheets possess an abundance of oxygen vacancies(Vo)and unsaturated coordination s让es,thereby affording outstanding electrocatalytic water oxidation performance.DFT calculations confirmed that Vo on the surface of ZnCo-UF enhanced H20 adsorption via increasing the electropositivity of the nanosheets. | Xiaodan Jia Xin Zhang Jiaqing Zhao Yufei Zhao Yunxuan Zhao Geoffrey I.N.Waterhouse Run Shi Li-Zhu Wu Chen-Ho Tung Tierui Zhang | 2019 | Journal of Energy Chemistry2019,28,7: | 3 |
| 6 | Creating burdock polysaccharide-oleanolic acid-ursolic acid nanoparticles to deliver enhanced anti-inflammatory effects:fabrication,structural characterization and property evaluation显示文摘This study explored the potential of polysaccharides from Actium lappa(ALPs)as natural wall materials for producing ALP-based nanoparticles to deliver poorly water-soluble oleanolic acid(OA)and ursolic acid(UA).Encapsulating OA+UA with ALPs(ALP:OA+UA,50:1;OA:UA,1:1)changed the crystalline nature to a more amorphous state through hydrogen bonding and involving O-H/C-O/O-C-O groups.ALP-OA/UA nanoparticles had a particle size and zeta potential(in water)of 199.1 nm/-7.15 mV,with a narrow unimodal size distribution,and excellent pH,salt solution,temperature and storage stability.Compared with ALPs,ALPOA/UA nanoparticles showed enhanced anti-inflammatory activity(especially at a dose of 100μg/mL)in a CuSO-induced zebrafish inflammation model via down-regulating the NF-κB signalling pathway and gene expression of associated transcription factors and cytokines(TNF-α,IL-1βand IL-8).Therefore,ALP-based nanoparticles are natural and anti-inflammatory carriers for hydrophobic bioactive molecules. | Shanshan Zhu Zhichang Qiu Xuguang Qiao Geoffrey I.N.Waterhouse Wenqing Zhu Wenting Zhao Qiuxia He Zhenjia Zheng | 2023 | Food Science and Human Wellness2023,12,2: | 2 |
| 7 | Effects of edpetiline from Fritillaria on inflammation and oxidative stress induced by LPS stimulation in RAW264.7 macrophages显示文摘The dry bulbs of Fritillaria cirrhosa species can help resolve phlegm,soothe cough,clear heat,and moisten the lung,and the main active components responsible for these effect are its alkaloids.However,it is unclear whether or how edpetiline in Fritillaria can inhibit the excessive inflammatory response and oxidative stress.In this research,we aimed to examine this aspect using lipopolysaccharide(LPS)-stimulated RAW264.7 macrophages as an inflammatory model.The quantitative real-time polymerase chain reaction and western blot analysis results showed that edpetiline significantly inhibited the content and mRNA expression levels of proinflammatory cytokines(TNF-αand IL-6)in LPS-induced RAW264.7 cells,significantly increased the mRNA expression of IL-4(anti-inflammatory cytokine),and markedly downregulated the inflammatory mediators inductible nitric oxide synthase(iNOS)and cyclooxygenase-2(COX-2)mRNA and protein expression levels.The oxidative stress induced by LPS was also inhibited by edpetiline,as the level of intracellular reactive oxygen species decreased notably.Edpetiline may exert anti-inflammatory and antioxidant effects through inhibiting the phosphorylation of IκB and the nuclear transcription of nuclear transcription factor-κB p65 and decreasing the phosphorylation of p38 and ERK in the mitogen-activated protein kinase signaling pathway,without activating the JNK/mitogen-activated protein kinase signaling pathway.These findings suggest that edpetiline may be a potential therapeutic agent for the prevention or treatment of inflammation-and oxidative stress-related pathophysiological processes and diseases. | Hongli Zhang Xiaoqing Xu Zhenhua Liu Dongxiao Sun-Waterhouse Jinmei Wang Changyang Ma Geoffrey I.N.Waterhouse Wenyi Kang | 2021 | Acta Biochimica et Biophysica Sinica2021,53,2: | 2 |
| 8 | 非共轭分子衍生的红色发射碳点的光致发光机制探究显示文摘在碳点基发光材料中,红光和近红外波长发射性质的开发一直是目前研究的热点和难点,其在生物学领域和显示领域等具有广阔的应用前景;然而,红光碳点的形成过程和荧光机理均不明确,这使得高品质红光碳点的制备依然面临巨大挑战.针对上述难题,作者提出氮(N)诱导芳构化的策略,精准调控碳点中五元芳环和六元芳环的形成过程,并通过高分辨制质谱结合密度泛函理论计算深度解析了柠檬酸基红光碳点的荧光发射中心.作者选取柠檬酸和一系列类柠檬酸分子,如乌头酸、酒石酸、天冬氨酸、苹果酸和顺丁烯二酸等作为反应前驱体进行探究,结果表明,柠檬酸类似物种碳链长度的不同会影响所制备碳点的荧光发射波长,前体碳链长度会影响N参与的扣环形式,从而导致不同程度的红移.其中,柠檬酸基碳点可形成N掺杂六元芳环,从而实现荧光发射波长从无N掺杂的423 nm到有N掺杂的667 nm,高达244 nm的大幅度红移.本工作揭示了柠檬酸或类柠檬酸等非共轭小分子为碳源制备红光碳点的生长过程和其荧光发射中心,并为其他类型碳点的荧光机制探索和结构分析提供了创新思路. | 杨鑫 艾琳 于镜坤 Geoffrey I.N.Waterhouse 隋来志 丁洁 张保卫 雍雪 卢思宇 | 2022 | Science Bulletin2022,67,14: | 2 |
| 9 | Fe-N-C氧还原电催化剂中FeN_(4)位点微观环境的调节显示文摘Fe-N-C电催化剂,即FeN_(4)单原子位点负载于氮掺杂的碳载体上,是一种优良的氧还原催化剂,有望取代贵金属铂催化剂,应用于金属空气电池和燃料电池.目前,提高Fe-N-C材料氧还原性能的策略包括:(1)提高铁单原子活性位点的数目;(2)调节铁单原子中心与含氧中间体的吸附能,从而提高本征活性.该工作报道了一种简单NaCl熔盐煅烧Fe掺杂金属有机配合物前驱体(Fe-ZIF)的方法,可有效提高煅烧产物Fe-N-C催化剂中FeN_(4)单原子位点数量和本征活性.原位透射电子显微镜(TEM)实验结果表明:在高温煅烧过程中,NaCl蒸发后沉积附着在Fe-ZIF颗粒表面,加速Fe-ZIF中配体的分解和锌中心的挥发,从而使煅烧产物中碳载体呈多孔结构,并改变Fe单原子位点的配位环境.X射线吸收谱进一步表明,该Fe-N-C催化剂中Fe单原子位点的Fe-N键变长,Fe的氧化态降低,从而有利于氧还原反应中间体的脱附.因此,针对碱性氧还原反应过程,该催化剂表现出比商业化铂碳催化剂更优异的性能,并可作为锌空气电池阴极催化剂,用于手机充电. | 王青 陆瑞虎 杨予琪 李玄泽 陈广波 尚露 彭力山 Dongxiao Sun-Waterhouse Bruce C.C.Cowie 孟祥敏 赵焱 张铁锐 Geoffrey I.N.Waterhouse | 2022 | Science Bulletin2022,67,12: | 2 |
| 10 | Cross-linking enhanced room-temperature phosphorescence of carbon dots显示文摘Currently,there is a strong drive to discover alternative materials that exhibit room-temperature phosphorescence(RTP)for displays,bioimaging,and data security.Ideally,these materials should be nontoxic,cheap,and possess controllable photoluminescent properties.Carbon dots(CDs)possess each of these characteristics,but to date,less attention has been paid to their RTP mechanism.Herein,we synthesized a series of CDs by self-crosslinking and carbonization of precursor.The resultant CDs were luminescent and exhibited a bright,micro-second afterglow lifetime.To increase the RTP,a second microwave processing step was used to coat the CDs with polyvinyl alcohol(PVA),polyacrylamide(PAM),or tetraethyl orthosilicate(TEOS),producing CDs@PVA,CDs@PAM,and CDs@TEOS composites.The core-shell structure acted to enhance crosslinking at the surface of the CDs to boost the RTP,creating abundant energy levels for intersystem crossover.In situ X-ray photoelectron spectroscopy verified electron transfer during luminescence.Finally,we present a design rule that can be used to tune the quantum yields and RTP lifetime of CDs,based on the effective stabilization of triplet excited states through the extent and strength of cross-linking.This simple strategy provides a flexible route for guiding the further development of CDs with tailored RTP properties for various applications. | Boyang Wang Zhen Sun Jingkun Yu Geoffrey I.N.Waterhouse Siyu Lu Bai Yang | 2022 | SmartMat2022,3,2: | 1 |
| 11 | Polysaccharides from edible fungi Pleurotus spp.:advances and perspectives显示文摘Pleurotus spp.was one of the most precious and common edible fungi,polysaccharides were the main active component.The structural,biological activities and structure-activity relationship(SAR)of polysaccharides from Pleurotus spp.were systematically reviewed.On the basis of structure and biological activity,structure-activity relationships were also analyzed and discussed to look forward to its future research direction and application prospect.In the past 5 years,about 30 kinds of polysaccharides were isolated from Pleurotus spp.,and their preliminary structures were studied,but the fine structures seldomly reported.The polysaccharides showed the activities of immunomodulatory,hypoglycemic,anti-inflammatory,antioxidant,anti-ageing,hepatoprotective,anti-tumor,hypolipidemic and regulating intestinal flora,but the mechanism was needed further study.There were few studies on the SAR of polysaccharides from Pleurotus,and the polysaccharides of P.eryngii were studied.It was found that the biological activities of polysaccharides were affected by molecular weight,monosaccharide composition,sugar chain structure and configuration.In addition,sulfonation and selenization could significantly increase the bioactivities of polysaccharides.These findings might help to better understand the research status of polysaccharides from Pleurotus spp.and provided a scientific basis for their application as functional foods. | Zhenhua Yin Dongxiao Sun-Waterhouse Jinmei Wang Changyang Ma Geoffrey I.N.Waterhouse Wenyi Kang | 2021 | Journal of Future Foods2021,1,2: | 1 |
| 12 | ZIF-8的高温热解: 锌(Ⅱ)单原子中心从四面体构型到类卟啉构型的演变显示文摘高温热解金属有机骨架(ZIFs)是一种合成含类卟啉单原子碳材料的有效方式.理解煅烧产物中单原子位点在热解过程中的构型变化,对实现高性能单原子催化材料具有重要意义.因此,本工作系统地研究了在ZIF-8煅烧过程中(500~900℃)锌单原子中心的构型演变.同步辐射吸收谱结果表明:ZIF-8前驱体中四面体构型的锌单子中心在600℃时开始转变为类卟啉锌中心(锌中心凸出卟啉平面);并随着温度升高至900℃,锌中心逐渐接近N4卟啉平面.由于Zn N4中心位点的几何构型变化改变了锌中心原子的电子密度分布,因此其在降解H2O2中表现不同的催化活性(800℃煅烧得到的锌单原子产物性能最优).本工作为理解ZIF煅烧中单原子的构型演变以及其催化性能提供了新思路. | 王青 伊奈稔哲 陈婉婷 尚露 孙凡飞 魏上海 Dongxiao Sun-Waterhouse Shane G.Telfer 张铁锐 Geoffrey I.N.Waterhouse | 2020 | Science Bulletin2020,65,20: | 1 |
| 13 | Converging Cooperative Functions into the Nanospace of Covalent Organic Frameworks for Efficient Uranium Extraction from Seawater显示文摘The extraction of uranium from seawater is challenging though it offers tremendous potential for the sustainable production of nuclear fuel for the energy sector.Herein,we report a new strategy for efficient extraction of uranium from seawater via converging the cooperative functions of adsorption-photocatalysis into the nanospace of covalent organic frameworks(COFs).Functionalization of the organic linkers in the multicomponent COFs allowed exploration of the relationship between material composition and adsorption-photocatalytic activity for uranium extraction.The presence of amidoxime groups in the COFs offered selective binding sites for uranyl,whilst triazine units and bipyridine-Pd groups acted cooperatively to photocatalytically reduce adsorbed U(Ⅵ)to a U(Ⅳ)solid product(UO2)for facile collection.One of our developed COFs,4-Pd-AO,displayed exceptional performance in sequestering and reducing uranyl from natural seawater,with a high extraction capacity of 4.62 mg U/g per day(average data)under visible light irradiation.Mechanistic studies revealed that 4-Pd-AO not only reduced adsorbed uranyl(Ⅵ)to U(Ⅳ)O_(2),but also generated ^(1)O_(2) and superoxide radicals under visible light excitation,thus affording excellent antibacterial and antialgal activities(i.e.,antibiofouling properties)for sustained efficient uranium extraction performance.This proof-ofconcept study establishes multicomponent COFs as promising candidates for efficient uranium extraction from seawater. | Mengjie Hao Zhongshan Chen Xiaolu Liu Xianhai Liu Juyao Zhang Hui Yang Geoffrey I.N.Waterhouse Xiangke Wang Shengqian Ma | 2022 | CCS Chemistry2022,4,7: | 1 |
| 14 | Dual sensitivity of spiropyran-functionalized carbon dots for full color conversions显示文摘Multicolor phosphors that respond rapidly to external stimuli are highly desirable for many applications, including lighting,optical displays and sensors. Herein, spiropyran(SP)-functionalized carbon dots(CDs) were synthesized with a broad-spectrum output that were responsive to both ultraviolet(UV)/visible light and pH. The SP-CDs possessed strong ester linkages between the UV-absorbing/blue-emitting CDs and blue-absorbing/red-emitting surface SP groups, allowing efficient F?rster resonance energy transfer(FRET) between the donor and acceptor. UV irradiation or acid addition cause the SP ring opening to merocyanine(MC) or protonated MCH+forms, respectively, together with the formation of sheet-like aggregates. These processes enhanced the red emissions by the SP groups and attenuated blue emissions from the CDs. These changes were fully reversible under visible light or basic conditions, respectively, allowing dynamic regulation of the fluorescence properties(emission colors from blue to red, photoluminescence(PL) intensity) under photoirradiation on the timescale of minutes. As proof-of concept, we demonstrate that the emission properties of the SP-CDs can be used to construct UV and pH sensing materials as well as light emitting diode(LED) with different colors. | Lin Ai Huimin Liu Rui Liu Haoqiang Song Ziqi Song Mingjun Nie Geoffrey I.N.Waterhouse Siyu Lu | 2022 | Science China Chemistry2022,65,11: | 0 |
| 15 | Towards human well-being through proper chewing and safe swallowing:multidisciplinary empowerment of food design显示文摘This review article provides an overview of the physiology and biomechanics of food oral processing,with a wider view towards the development of wellness foods that facilitate proper chewing and safe swallowing.The complexity of food oral processing is well recognized,involving food-mouth-gut-brain interplay.This process requires precise coordination of chewing,oro-sensing,neural control,saliva secretion,bolus formation,swallowing and respiration,involving central and peripheral nervous systems,sensors and muscles of the oral cavity,pharynx,larynx and oesophagus.Oral processing of an ingested food leads to its fragmentation,hydration,breakdown,transformation and reconstruction,and provides simultaneous oro-sensory perception and preliminary food digestion via mechanical fracture and chemical/enzymatic reactions.There exists a complex food structure-property-processing relationship from the first bite of a food through to bolus formation for swallowing.Achieving maximal deformability of a bolus is a key criterion for successful swallow-aided food development.Food structure is the main variable affecting food breakdown,food sensory perception and bolus formation.More research is needed to better understand the food structure-oral processing relationship,which guides the tailoring of foods/diets for individuals with chewing and swallowing difficulties to achieve balanced nutrition and an enjoyable eating experience. | Dongxiao Sun-Waterhouse Wenyi Kang Changyang Ma Geoffrey I.N.Waterhouse | 2021 | Journal of Future Foods2021,1,1: | 0 |
| 16 | Design strategies towards transition metal single atom catalysts for the oxygen reduction reaction-A review显示文摘The electrochemical oxygen reduction reaction(ORR)is pivotal in energy conversion via a 4e-ORR pathway and green hydrogen peroxide production via 2e-ORR pathway.Transition metal single atom catalysts(TM SACs)have attracted intense attention in recent years for ORR due to their high activity and near maximum metal atom utilization.The future development of TM SACs for ORR requires improved understanding of reaction pathways,since currently the true origin of activity remains contentious owing to the lack of qualitative/quantitative information about active sites.Knowledge-guided design is imperative for the optimization of TM SACs performance in terms of activity and selectivity.This review focuses on the latest progress in the design of TM SACs for ORR,placing particular attention on efforts to elucidate reaction mechanisms.Experimental evidence based on in-situ/operando characterization measurements,along with theoretical predictions,are summarized to deepen understanding of the structure-performance relationships at both atomic and molecular level.Finally,some perspectives are offered relating to the fundamental science needed for TM SACs to find practical application in energy storage and conversion devices.We hope this review will inspire the development of new synthetic routes towards high-performance ORR electrocatalysts for the energy sector. | Yaojia Cheng Hao Wang Haoqiang Song Kan Zhang Geoffrey I.N.Waterhouse Jiangwei Chang Zhiyong Tang Siyu Lu | 2023 | Nano Research Energy2023,2,4: | 0 |
| 17 | A core-satellite self-assembled SERS aptasensor containing a“biological-silent region”Raman tag for the accurate and ultrasensitive detection of histamine显示文摘Herein,a novel interference-free surface-enhanced Raman spectroscopy(SERS)strategy based on magnetic nanoparticles(MNPs)and aptamer-driven assemblies was proposed for the ultrasensitive detection of histamine.A core-satellite SERS aptasensor was constructed by combining aptamer-decorated Fe_(3)O_(4)@Au MNPs(as the recognize probe for histamine)and complementary DNA-modified silver nanoparticles carrying 4-mercaptobenzonitrile(4-MBN)(Ag@4-MBN@Ag-c-DNA)as the SERS signal probe for the indirect detection of histamine.Under an applied magnetic field in the absence of histamine,the assembly gave an intense Raman signal at“Raman biological-silent”region due to 4-MBN.In the presence of histamine,the Ag@4-MBN@Ag-c-DNA SERS-tag was released from the Fe_(3)O_(4)@Au MNPs,thus decreasing the SERS signal.Under optimal conditions,an ultra-low limit of detection of 0.65×10^(-3)ng/mL and a linear range 10^(-2)-10^5 ng/mL on the SERS aptasensor were obtained.The histamine content in four food samples were analyzed using the SERS aptasensor,with the results consistent with those determined by high performance liquid chromatography.The present work highlights the merits of indirect strategies for the ultrasensitive and highly selective SERS detection of small biological molecules in complex matrices. | Chen Chen Yingfang Zhang Ximo Wang Xuguang Qiao Geoffrey I.N.Waterhouse Zhixiang Xu | 2024 | Food Science and Human Wellness2024,13,2: | 0 |
| 18 | Disulfide Crosslinking-Induced Aggregation:Towards Solid-State Fluorescent Carbon Dots with Vastly Different Emission Colors显示文摘Solid-state fluorescent multi-color carbon dots(SFM-CDs),prepared using the same precursor(s)without the need for dispersion in a solid matrix,are highly demanded for a wide range of applications.Herein,we report a microwave-assisted strategy for the prepara-tion of SFM-CDs with blue,yellow and red emissions within 5 min from the same precursors.The as-prepared B-CDs,Y-CDs,and R-CDs possessed bright fluorescence at 425 nm,550 nm,and 640 nm,and photoluminescence quantum yields(PLQYs)of 54.68%,17.93%,and 2.88%,respectively.The structure of SFM-CDs consisted of 5-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyridine-7-carboxylic acid(TPCA)immobilized on the surface of a carbon core,with the size of the carbon core and degree of disulfide crosslinking between CDs both increasing on going from the B-CDs to the R-CDs,as verified by mechanochromic experiments.The excellent solid-state fluorescence performance of the SFM-CDs allowed their utilization as the fluorescent converter layer in multi-color LEDs and white LEDs with a high color rendering index. | Rui Fu Haoqiang Song Xingjiang Liu Yongqiang Zhang Guanjun Xiao Bo Zou Geoffrey I.N.Waterhouse Siyu Lu | 2023 | Chinese Journal of Chemistry2023,41,9: | 0 |
| 19 | Aggregation in carbon dots显示文摘Carbon dots(CDs)possess outstanding luminescence properties,making them widely used in optical displays,anti-counterfeiting systems,bioimaging,and sensors.Presently,there is much debate about the classification of CDs,as well as their formation process,structure,and fluorescence mechanisms.Aggregation plays an important role in the formation and fluorescence(e.g.,aggregationinduced emission)of CDs,yet is seldom studied in detail.This review aims fill this knowledge gap,by first exploring how aggregation leads to the formation of different types of CDs(e.g.,graphene quantum dots,carbon quantum dots,and carbonized polymer dots),followed by a detailed examination of the effect of aggregation-induced morphology on the luminescence properties and application of CDs.Finally,opportunities and challenges for the application of CDs in various applications are discussed,with the need for better mechanistic understanding of aggregation-induced luminescence being an imperative. | Yi Ru Geoffrey I.N.Waterhouse Siyu Lu | 2022 | Aggregate2022,3,6: | 0 |
| 20 | Targeted alleviation of ischemic stroke reperfusion via atorvastatin-ferritin Gd-layered double hydroxide显示文摘In acute ischemic stroke therapy,potent neuroprotective agents are needed that prevent neural injuries caused by reactive oxygen species(ROS)during ischemic reperfusion.Herein,a novel 2D neuroprotective agent(AFGd-LDH)is reported,comprising Gd-containing layered double hydroxide nanosheets(Gd-LDH,as a drug nanocarrier/MRI contrast agent),atorvastatin(ATO,as a neuroprotective drug)and the ferritin heavy subunit(FTH,as a blood brain barrier transport agent).Experiments revealed AFGd-LDH to possess outstanding antioxidant activity,neuroprotective properties,blood‒brain barrier transit properties,and biocompatibility.In vitro studies demonstrated the ROS scavenging efficiency of AFGd‒LDH to be~90%,surpassing CeO_(2)(50%,a ROS scavenger)and edaravone(52%,a clinical neuroprotective drug).Ischemia‒reperfusion model studies in mice showed AFGd‒LDH could dramatically decrease apoptosis induced by reperfusion,reducing the infarct area by 67%and lowering the neurological deficit score from 3.2 to 0.9.AFGd-LDH also offered outstanding MRI performance,thus enabling simultaneous imaging and ischemia reperfusion therapy. | Li Wang Baorui Zhang Xueting Yang Shuaitian Guo Geoffrey I.N.Waterhouse Guangrong Song Shanyue Guan Aihua Liu Liang Cheng Shuyun Zhou | 2023 | Bioactive Materials2023,,2: | 0 |