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Preparation and properties of poly(ethylene glycol)-bpoly( 3-acrylamidophenylboronic acid) glucose responsive particles and their hyaluronic acid-based microneedle patches

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2024年第5期25卷 395-410页

作者： Yichuan HONG Haojie YU Li WANG Xiang CHEN Di SHEN Yu WANG Shuning REN Yudi HUANG Jian YANG State Key Laboratory of Chemical Engineering College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310058China Zhejiang-Russia Joint Laboratory of photo-Electro-Magnetic Functional Materials College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310058China

To overcome the pain and risk of hypoglycemia in insulin administration,glucose-responsive microneedles have been developed by researchers,which could release insulin according to the blood glucose *** designed a kind of particles by a reversible addition-fragmentation chain transfer(RAFT)method containing a phenylboronic acid group as the sensor of glucose and carrier of ***(ethylene glycol)(PEG)-2-(dodecylthio(thiocarbonyl)thio)-2-methylpropionic acid(DDMAT)was synthesized as a macromolecular RAFT agent,which was then reacted with 3-acrylamidophenylboronic acid(AAPBA)to synthesize the block copolymer ***-responsive particles loaded with insulin were prepared by self-assembly based on hydrophilic-hydrophobic *** patches loaded with glucose-responsive particles were prepared using hyaluronic acid as the *** insulin release behavior of the particles in glucose solutions of 0,100,and 400 mg/dL showed significant glucose responsiveness and good *** results of blood glucose control experiments in rats indicate that a single microneedle patch can effectively maintain normal blood glucose for over 7 h.

关键词： Diabetes Hyaluronic acid Phenylboronic acid(PBA) Glucose responsive hydrogel Microneedles

In situ nanoscale mapping of electrical and catalytic properties

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National Science Review 2024年第7期11卷 65-66页

作者： Christopher S.Kley Helmholtz Young Investigator Group Nanoscale Operando CO2 photo-Electrocatalysis Helmholtz-Zentrum Berlin für Materialien und Energie GmbH Department of Interface Science Fritz Haber Institute of the Max Planck Society

By enabling the conversion of sustainably-derived electrical energy into chemical energy, electrocatalytic reactions are vital for closing the anthropogenic carbon cycle. A wide array of electrocatalytic reactions have gained extensive attention, including hydrogen evolution（HER）, oxygen evolution（OER）, and CO2electroreduction（CO2RR）.

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Achieving Seconds-to-Hours Duration-Tunable Organic Long Persistent Luminescence from Carbon Dots-Based Exciplex Systems by Energy Gaps Regulation

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Chinese Journal of Chemistry 2024年第12期42卷 1407-1417页

作者： Yixuan Xu Kai Jiang Linger Feng Xinyuan Tong Zuxu Zhou Fengshi Li Yi Zhang Jiaren Du Hengwei Lin International Joint Research Center for photo-responsive Molecules and Materials School of Chemical and Material EngineeringJiangnan UniversityWuxiJiangsu214122China State Key Laboratory of Food Science and Resources Jiangnan UniversityWuxiJiangsu 214122China

Comprehensive Summary Duration-tunable afterglow materials have garnered considerable attention in various ***,carbon dots(CDs)-based long persistent luminescence(LPL)composites with a tunable duration in an ultrawide range of seconds-to-hours levels were designed and prepared for the first *** contrast to the established CD-based afterglow materials,we reported that CD-based composites exhibit LPL in the form of exciplexes and long-lived charge-separated states,enabling the LPL to be prolonged from several seconds to over one hour,exceeding the typical regulation range(limited to 1 min).Further studies revealed that the relationship between the excited and charge-transfer states of CDs plays a pivotal role in activating the LPL and regulating its ***,these composites exhibited high photoluminescence(PL)quantum yields of up to 60.63%,and their LPL was robust under ambient conditions,even in aqueous *** robust and superior LPL performance endows these composites with a strong competitive advantage in dynamic display systems,such as tags for time-resolved data encryption and displays of the remaining time of *** study offers an approach to preparing CDs-based LPL composites with tunable durations and may provide new insights for the development of rare-earth-free LPL materials.

关键词： Carbon dots Composites Charge separation Exciplex Persistent luminescence

Rational design of hydroxytricyanopyrrole-based probes with high affinity and rapid visualization for amyloid-β aggregates in vitro and in vivo

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Chinese Chemical Letters 2024年第5期35卷 290-295页

作者： Jiajia Lv Jie Gao Hongyu Li Zeli Yuan Nan Dong School of Chemistry and Chemical Engineering Guizhou UniversityGuiyang 550025China School of Pharmacy Zunyi Medical UniversityZunyi 563003China Guizhou International Scientific and Technological Cooperation Base for Medical photo-Theranostics Technology and Innovative Drug Development Zunyi 563003China

As key biomarkers,amyloid-β(Aβ)plaques are frequently used to diagnose Alzheimer’s disease(AD).Although fluorescence imaging has proven to be effective in detecting these plaques,the gold standard probe thioflavin T(ThT),used for Aβaggregates,cannot be applied in vivo owing to its invasive ***,the development of novel fluorescent probes capable of identifying Aβplaques in situ is *** on the ThT structure,twoπ-conjugated heterocyclic D-π-A probes were designed bearing the hydroxytricyanopyrrole acceptor and N,N-dimethylaminophenyl *** probes exhibited red to near-infrared fluorescence emission(λ_(max)=732 nm),large Stokes shifts(>100 nm),exceptional signal-to-noise ratio,rapid response(<30 s),and high binding affinity(NT-HTCP=33.32 nmol/L;NF-HTCP=53.35 nmol/L)for Aβ*** the best candidate,NT-HTCP was used for in situ imaging of Aβplaques in AD mouse ***,in vivo research demonstrated that NT-HTCP could cross the blood-brain barrier and continue imaging the Aβplaques with a good signal-to-noise ***,the outcomes of the docking computations helped guide the development of the Aβ*** study expands the family of N,N-dimethylaminophenyl-based Aβ-sensitive fluorophores,with NTHTCP emerging as a highly promising imaging agent.

关键词： Amyloid-β Fluorescent probe Hydroxytricyanopyrrole Fluorescence imaging Alzheimer’s disease

维普期刊数据库

越来越脏的浪漫之都去巴黎旅游，你后悔了吗？

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环球人文地理 2024年第9期 46-55页

作者：史英静贺进一长城 Kamira Zhanpy 生活多美好 flickr Anton Ivanov photo

巴黎已经浪漫了几百年，是太多人心中自由、先锋的代名词。不过，随着奥运会临近，以及社交媒体的关注与传播，这座城市的滤镜被打碎，越来越多问题暴露在公众视野。巴黎综合症，指旅行者前往巴黎后，发现真实的巴黎与他们想象中相差甚...

巴黎已经浪漫了几百年，是太多人心中自由、先锋的代名词。不过，随着奥运会临近，以及社交媒体的关注与传播，这座城市的滤镜被打碎，越来越多问题暴露在公众视野。巴黎综合症，指旅行者前往巴黎后，发现真实的巴黎与他们想象中相差甚远，从而引起恶心、失眠、被害妄想等一系列表现的心理疾病。这个概念于上世纪提出，近年来广泛流传。

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工党胜选

财新周刊 2024年第27期 12-13页

作者： David Shaw(图) 无不详 IC photo

当地时间2024年7月4日,英国伦敦,英国广播公司屏幕上显示的大选出口民调。当日夜间,英国议会大选的投票全部结束。出口民调显示,在英国议会下院的650个席位中,工党最终斩获的席位或将多达410席,从而使其以约170席的优势取得压倒性的多... 详细信息

当地时间2024年7月4日,英国伦敦,英国广播公司屏幕上显示的大选出口民调。当日夜间,英国议会大选的投票全部结束。出口民调显示,在英国议会下院的650个席位中,工党最终斩获的席位或将多达410席,从而使其以约170席的优势取得压倒性的多数地位。保守党获131席。这是时隔14年后,工党再次成为英国执政党。按照规定,英国首相苏纳克5日将向国王查尔斯三世递交辞呈,获得批准后卸任首相一职。从四年前开始担任工党党魁、现年61岁的吉尔斯塔默将获国王任命成为新一任英国首相并负责组阁。

关键词：英国议会英国广播公司工党英国首相保守党大选胜选压倒性

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清新薄荷绿

新潮（芭珠甄选） 2024年第2期 26-27页

作者：宋言 Sophia 无不详 IC photo

源于自然草木清新的薄荷绿色,充满了春日的益然生机,唤醒人们对自然的向往。这种具有活力的色彩,不仅在2024年的各大秀场中备受瞩目,还因其清新、柔和、内敛的气质受到大众喜爱。深浅不一的绿色系叠穿,搭配浓烈撞色的紫色系珠宝,为春日... 详细信息

源于自然草木清新的薄荷绿色,充满了春日的益然生机,唤醒人们对自然的向往。这种具有活力的色彩,不仅在2024年的各大秀场中备受瞩目,还因其清新、柔和、内敛的气质受到大众喜爱。深浅不一的绿色系叠穿,搭配浓烈撞色的紫色系珠宝,为春日增色添彩。

关键词：薄荷绿秀场珠宝绿色春日

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图说天下

中国减灾 2024年第10期 8-13页

作者：无澎湃影像 IC photo

甘肃华亭:汛期将至水域救援训练忙5月6日,夏季汛期将至,为进一步做好当前防汛抗洪抢险救援准备,甘肃省华亭市消防救援大队组织消防救援人员开展水域救援实战训练。

关键词：消防救援抢险救援实战训练防汛抗洪甘肃华亭水域甘肃省汛期

Effect of coil and chamber structure on plasma radial uniformity in radio frequency inductively coupled plasma

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Plasma Science and Technology 2024年第7期26卷 58-66页

作者：赵洋周晓华高升荣宋莎莎赵玉真 Shaanxi International Joint Research Center for Applied Technology of Controllable Neutron Source Xijing UniversityXi’an 710123People’s Republic of China Technological Institute of Materials&Energy Science(TIMES) Xi’an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion DeviceSchool of Electronic InformationXijing UniversityXi’an 710123People’s Republic of China

Enhancing plasma uniformity can be achieved by modifying coil and chamber structures in radio frequency inductively coupled plasma(ICP)to meet the demand for large-area and uniformly distributed plasma in industrial *** study utilized a two-dimensional self-consistent fluid model to investigate how different coil configurations and chamber aspect ratios affect the radial uniformity of plasma in radio frequency *** findings indicate that optimizing the radial spacing of the coil enhances plasma uniformity but with a reduction in electron ***,optimizing the coil within the ICP reactor,using the interior point method in the Interior Point Optimizer significantly enhances plasma uniformity,elevating it from 56%to 96%within the range of the model ***,when the chamber aspect ratio k changes from 2.8 to 4.7,the plasma distribution changes from a center-high to a saddleshaped ***,the plasma uniformity becomes ***,adjusting process parameters,such as increasing source power and gas pressure,can enhance plasma *** findings contribute to optimizing the etching process by improving plasma radial uniformity.

关键词： inductively coupled plasma fluid simulation optimized coil chamber aspect ratio plasma uniformity

维普期刊数据库