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Activatable photoacoustic bioprobe for visual detection of aging in vivo

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Chinese Chemical Letters 2024年第4期35卷 324-329页

作者： Zihong Li Jie Cheng ping huang Guoliang wu Weiying Lin Institute of Optical materials and Chemical Biology Guangxi Key Laboratory of Electrochemical Energy MaterialsSchool of Chemistry and Chemical EngineeringGuangxi UniversityNanning 530004China

Aging is a natural physiological process with various challenges, related to the loss of homeostasis within the organism, which is not a disease, but a significantly strong risk factor for multiple diseases, including myocardial infarction, stroke, some age-related cancers, macular degeneration, osteoarthritis, neurodegeneration, and many others. In the body, the main manifestation of aging is cellular aging, which exists within tissues and has a local or global impact on tissue function. However, the lack of effective aging detection tools has always been an issue that cannot be ignored in the field of aging research. Therefore,it is necessary to construct a non-invasive tool for in vivo detection of aging. Here, we show that the photoacoustic probe(LGAL), which has peak excitation and emission wavelengths in the near-infrared optical window, binds in vivo and at high contrast to the hallmark of aging, and allows for the microscopic imaging of aging through the intact mice. Firstly, this tool LGAL has been successfully applied to detect senescence in cells, displaying stronger photoacoustic signals than normal cells. Then, by using the photoacoustic probe, the blood vessels and tissues inside the mice can be visualized. Young and elderly mice exhibit varying intensities of photoacoustic signals, marking the first time a probe has been used to explore the aging of blood vessels and tissues inside the mice. Finally, we monitored the changes in the degree of aging during tumor treatment under photoacoustic(pA) imaging for the first time. As the treatment time increased, the degree of aging of the tumor gradually deepened. We expect the powerful tool could be a noninvasive and powerful tool for the study of aging biology.

关键词： Near-infrared photoacoustic Aging Senescence Tumor Sa-β-gal

readily prep.r.d and processed multifunctional MXene nanocomposite hydrogels for smart electronics

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SmartMat 2024年第2期5卷 103-114页

作者： Jiahui huang Xianwu huang peiyi wu State Key Laboratory for Modification of Chemical Fibers and polymer materials College of Chemistry and Chemical EngineeringCenter for Advanced Low-Dimension MaterialsDonghua UniversityShanghaiChina State Key Laboratory of Molecular engineering of polymers Department of Macromolecular Science and Laboratory of Advanced MaterialsFudan UniversityShanghaiChina

Booming sophisticated robotics and prosthetics put forward high requirements on soft conductive materials that can bridge electronics and biology,those soft conductive materials should imitate the mechanical prop.r.ies of biological tissues and build information transmission *** now,it remains a great challenge to handle the trade-off among ease of prep.r.tion,high conductivity,processability,mechanical adaptability,and external stimuli ***,a kind of readily prep.r.d and processed multifunctional MXene nanocomposite hydrogel is rep.r.ed,which is prep.r.d via the fast gelation of cationic monomer initiated by delaminated MXene *** gelation time can be adjusted(several seconds to minutes)based on the MXene *** adjusting the MXene ratio,the resulting nanocomposites are ultrastretchable(>5000%),three-dimensional(3D)printable,and show outstanding mechanical and electrical *** expected,the integration of multifunctional systems onto various substrates(e.g.,gloves and masks)is further demonstrated via 3D printing and could achieve diverse sensory capabilities toward strain,pressure,and temp.r.ture,showing great prospects as smart flexible electronics.

关键词： 3D printable electronics MXene polymeric hydrogels stretchable and conductive

Influence of Heat-setting Temp.r.ture on the Microp.r.us Structure and prop.r.ies of pp/HDpE Bilayer Microp.r.us Membranes

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Chinese Journal of polymer science 2024年第8期42卷 1243-1252页

作者： Jie Xie Yong-Shi wu Jia-Yi Xie rui-Jie Xu Cai-Hong Lei Sai-Nan Song Guang-Quan Li An-ping huang School of materials and Energy Guangdong University of TechnologyGuangzhou 510006China Lanzhou petrochemical research Center Petrochemical Research InsititutePetroChinaLanzhou 730060China School of Chemistry and Civil engineering Shaoguan CollegeShaoguan 512005China

Due to the mechanical stability of pp layer,the pp/HDpE double-layer microp.r.us mem brane could be prep.r.d at a higher heat-setting temp.r.tu re than that of pE monolayer *** this work,the effects of heat-setting temp.r.ture on the p.r. structure and prop.r.ies of pp/HDpE dou ble-layer membrane were *** the increase of heat-setting temp.r.ture from 120℃to 130℃,the length of connecting bridge crystal and crystallinity in the pE layer increase due to the melting of thin lamellae and the stability of connecting bridge structure during *** corresponding air p.r.eability,po rosity,wetta bility of liquid electrolyte and mechanical prop.r.y of the heat-set microp.r.us membrane increase,exhibiting better electrochemical ***,when the heat-setting temp.r.ture is further increased to 140℃,higher than the melting point of pE resin,some p.r.s are closed since the lamellae and connecting bridges melt and shrink during heat-setting,resulting in a decrease of air p.r.eability and *** contrast,there is negligible change in the pp layer within the above heat-setting temp.r.ture *** study successfully builds the relationship between the stable p.r. structure and prop.r.y of microp.r.us membrane during heat-setting,which is helpful to guide the production of high-pe rformance pp/pE/pp lithium batteries sep.r.tor.

关键词： pp/HDpE bilayer microp.r.us membranes Heat-setting temp.r.ture SAXS

Discovery and mechanism of anti-hyp.r.ensive effect of a novel tripeptide(SYp) from medicinal fungus Ganoderma lingzhi

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Food science and Human Wellness 2024年

作者： Qiang wu Feijun Luo Jia huang ping huang Yongnan Liu Xiaoling Wang Gaoqiang Liu Hunan provincial Key Laboratory of Forestry Biotechnology and International Coop.r.tion Base of science and technology Innovation on Forest resource Biotechnology， Central South university of Forestry and technology Microbial Variety Creation Center，Laboratory of Yuelushan Seed Industry college of Food and Chemical engineering， Shaoyang university Laboratory of Molecular Nutrition， National engineering Laboratory for rice and Byproducts， Central South university of Forestry and technology

Ganoderma lingzhi is a new species of the prize medicinal mushroom Ganoderma (Agaricomycetes). Using angiotensin I-converting enzyme (ACE) as a target， a tripeptide Ser-Tyr-pro (SYp) was discovered with preponderant ACE inhibitory activity with an 50% inhibiting concentration (IC50) value of 62.50 μg/mL attribute to the formed salt bridge and hydrogen bonds between SYp and ACE. SYp even maintained sup.r.or bioactivity after intestinal digestion， and exerted no cytotoxicity， but presented incomplete bioavailability in blood of spontaneous hyp.r.ensive rats (SHrs). Furthermore， it p.r.ormed antihyp.r.ensive effect in vivo by inhibiting the influx of Ca2+through activating endothelial NO synthase (eNOS)/NO/guanosine 3’，5’-cyclic monophosphate (cGMp) pathway， accompanied by attenuating angiotensin Ⅱ (Ang Ⅱ)/NADpH oxidase (NOX)/rOS pathway. This work not only discoverers a novel pharmacological ingredient from medicinal mushroom G. lingzhi for hyp.r.ension therapy， but also provides an insight into molecular mechanism of the ACE inhibitory peptide (ACEIp) on lowering blood pressure.

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Elucidating the role of embedding disp.r.ed cobalt sites in nitrogen-doped carbon frameworks in Si-based anodes for stable and sup.r.or storage

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Journal of Energy Chemistry 2024年第11期 180-195页

作者： Yueying Chen ping Li Mianying huang Chunlei wu Qianhong huang Tingyang Xie Xiaoming Lin Akif Zeb Yongbo wu Zhiguang Xu Yuepeng Cai Joint Laboratory of Energy and materials Chemistry (South china Normal university-Guangzhou Tianci New materials Co.Ltd.) Key Laboratory of Theoretical Chemistry of Environment Ministry of Education School of Chemistry South China Normal University Dep.r.ment of Chemistry and Chemical engineering Jiangxi Normal University Guangzhou Huifu research Institute Co.Ltd Key Laboratory of Atomic and Subatomic Structure and Quantum Control (Ministry of Education) Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter School of Physics South China Normal University Guangdong provincial Key Laboratory of Quantum engineering and Quantum materials Guangdong-Hong Kong Joint Laboratory of Quantum Matter South China Normal University

Unsatisfactory conductivity and volume effects have hindered the commercial application of siliconbased materials as advanced anode materials for high-p.r.ormance lithium-ion batteries. Herein, nitrogen doped carbon silicon matrix composite with atomically disp.r.ed Co sites（Si/Co-N-C） is obtained via the design of the frame structure loaded with nano-components and the multi-element hybrid strategy. Co atoms are uniformly fixed to the N-C frame and tightly packed with nanoscale silicon p.r.icles as an activation and protection building block. The mechanism of the N-C framework of loaded metal Co in the Si alloying process is revealed by electrochemical kinetic analysis and ex situ characterization ***, the nitrogen-doped Co site activates the intercalation of the outer carbon matrix to supplement the additional capacity. The Co nanop.r.icles with high conductivity and supp.r. enhance the conductivity and structural stability of the composite, accelerating the Li+/Na+diffusion kinetics. Density functional theory（DFT） calculation confirms that the hetero-structure Si/Co-N-C adjusts the electronic structure to obtain good lithium-ion adsorption energy, reduces the Li+/Na+migration energy *** work provides meaningful guidance for the development of high-p.r.ormance metal/non-metal modified anode materials.

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CO2-Induced Modulation of Si-O Bonds for Low Temp.r.ture plastic Deformation of Amorphous Silica Nanop.r.icles with Enhanced photoluminescence

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Energy & Environmental materials 2024年第4期7卷 404-412页

作者： Kang huang Wenzhuo wu Song Xu pengfei Yan Zhongming Wei Qun Xu Henan Institute of Advanced technology Zhengzhou University college of materials science and engineering Zhengzhou University State Key Laboratory of Sup.r.attices and Microstructures Institute of Semiconductors Chinese Academy of Sciences

Modulation of Si-O bonds under mild conditions has been a challenging issue in the field of material science,which is critical to manufacture highp.r.ormance silica-based optical and photonic ***,we introduce a nondestructive technique to achieve Si-O bond rearrangement,leading to plastic deformation and photoluminescence enhancement of amorphous silica nanop.r.icles using sup.r.ritical carbon dioxides in EtOH/H2O solution under mild temp.r.ture.

关键词： amorphous silica anisotropic stress photoluminescence plastic deformation sup.r.ritical CO2

Tungsten chalcogenides as anodes for potassium-ion batteries

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Tungsten 2024年第2期6卷 278-292页

作者： Yu-Han wu Wei-Hao Xia Yun-Zhuo Liu peng-Fei Wang Yu-Hang Zhang Jin-ru huang Yang Xu De-ping Li Li-Jie Ci School of Environmental and Chemical engineering Shenyang University of TechnologyShenyang 110870China Key Laboratory of Advanced Energy materials Chemistry(Ministry of Education) Nankai UniversityTianjin 300071China State Key Laboratory of Advanced Welding and Joining School of Materials Science and EngineeringHarbin Institute of Technology(Shenzhen)Shenzhen 518055China Dep.r.ment of Chemistry University College LondonLondon WC1H 0AJUnited Kingdom

potassium-ion batteries(pIBs)by virtue of their strong cost competitiveness and similar electrochemical prop.r.ies to lithiumion batteries have been deemed to be a promising electrochemical energy storage *** promote the application in the commercial market,developing electrode materials with high specifi c capacities,sup.r.or cycling stability,and reliable safety is of great *** materials as an imp.r.ant component of pIBs play a decisive role,among which twodimensional transition metal chalcogenides(2D TMCs)have attracted wide attention owing to their unique material and electrochemical *** the 2D TMCs’family,molybdenum chalcogenides as fl agship are the most studied materials and demonstrated the potential as *** the deepening of research on 2D TMCs,another shining member that possesses similar prop.r.ies to molybdenum chalcogenides,tungsten chalcogenides(WS_(2),WSe_(2),and WTe_(2)),has aroused tremendous *** many insp.r.ng results,various challenges remain to be further addressed;meanwhile,some results are still unclear and ***,this review fi rst introduces their material prop.r.ies and electrochemical storage ***,we systematically overview the research progress and put forward promoting improvement ***,challenges and opp.r.unities that would be future research directions are discussed.

关键词： Electrochemical energy storage potassium-ion batteries Anodes Tungsten chalcogenides

Emerging high-entropy strategy: A booster to the development of cathode materials for power batteries

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Journal of Advanced Ceramics 2024年第8期13卷 1093-1118页

作者： Liping huang Jinging Zhu J-Xuan Liu Houzheng wu Guo-Jun Zhang State Key Laboratory for Modification of Chemical Fibers and polymer materials Institute of Functional MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai 201620China SIAMC Advanced materials Coop.r.tion Huzhou 313100China

The coordinated development of new energy vehicles and the energy storage industry has become essential for reducing carbon *** cathode material is the key material that determines the energy density and cost of a power battery,but currently developed and applied cathode materials cannot meet the requirements for high specific capacity,low cost,safety,and good ***-entropy materials(HEMs)are a new type of single-phase material composed of multiple principal elements in equimolar or near-equimolar *** interaction between multiple elements can play an imp.r.ant role in improving the comprehensive prop.r.ies of the material,which is expected to solve the limitations of battery materials in practical ***,this review provides a comprehensive overview of the current development status and modification strategies of power batteries(lithium-ion batteries(LiBs)and sodium-ion batteries(SIBs)),proposes a high-entropy design strategy,and analyses the structure-activity relationship between the high-entropy effects and battery ***,future research topics related to high-entropy cathode materials,including computational guide design,specific synthesis methods,high-entropy electrochemistry,and high-throughput databases,are *** review aims to provide practical guidance for the development of high-entropy cathode materials for next-generation power batteries.

关键词： cathode materials lithium-ion battery(LIB) sodium-ion battery(SIB) high-entropy strategy

Combining anodic alcohol oxidative coupling for C-C bond formation with cathodic ammonia production

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National science review 2024年第5期11卷 217-226页

作者： Leitao Xu Wei Chen Cairong Wang Wenjie wu Yelin Yao Zhifeng huang Jingcheng wu Ming Yang Yandong wu Dianke Xie Yuqin Zou Shuangyin Wang State Key Laboratory of Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical EngineeringAdvanced Catalytic Engineering Research Center of the Ministry of Education Hunan University

Electrocatalytic oxidation of alcohols using heterogeneous catalysts is a promising aqueous, energy-efficient and environmentally friendly ap.r.ach, especially for coupling different alcohols to prolong the carbon chain via co-oxidation. precisely regulating critical steps to tailor electrode materials and electrolyte composition is key to selectively coupling alcohols for targeted synthesis. However, selectively coupling different alcohols remains challenging due to the lack of effective catalyst and electrolyte design promoting specific pathways. Herein, we demonstrate a paired electrolysis strategy for combining anodic oxidative coupling of ethanol（EtOH） and benzyl alcohol（phCH2OH） to synthesize cinnamaldehyde（CAL） and cathodic ammonia production. The strategies involve:（i） utilizing the salt-out effect to balance selective oxidation and coupling rates;（ii） developing platinum-loaded nickel hydroxide electrocatalysts to accelerate intermediate coupling kinetics;（iii） introducing thermodynamically favorable nitrate reduction at the cathode to improve coupling selectivity by avoiding hydrogenation of products while generating valuable ammonia instead of hydrogen. We achieved 85% coupling selectivity and 278 μmol/h NH3productive rate at 100 m A/cm2with a low energy input（～1.63 V）. The membrane-free, low energy, scalable ap.r.ach with a wide substrate scope highlights promising applications of this methodology. This work advances heterogeneous electrocatalytic synthesis through rational design principles that integrate anodic oxidative coupling with cathodic nitrate reduction reactions, having synergistic effects on efficiency and selectivity.

关键词： anodic alcohol oxidative coupling C–C bond formation cinnamaldehyde cathodic ammonia production