Photoelectrocatalysis(PEC)is extensively applied in diverse redox reactions.However,the traditional oxygen evolution reaction(OER)occurring at the(photo)anode is hindered by high thermodynamic demands and sluggish kin...Photoelectrocatalysis(PEC)is extensively applied in diverse redox reactions.However,the traditional oxygen evolution reaction(OER)occurring at the(photo)anode is hindered by high thermodynamic demands and sluggish kinetics,resulting in excessive energy consumption and limited economic value of the O2 produced,thereby impeding the practical application of PEC reactions.To overcome these limitations,advanced anodic-cathodic coupling systems,as an emerging energy conversion technology,have garnered significant research interest.These systems substitute OER with lower potential,valuable oxidation reactions,significantly enhancing energy conversion efficiency,yielding high-value chemicals,while reducing energy consumption and environmental pollution.More importantly,by designing and optimizing photoelectrodes to generate sufficient photovoltage under illumination,meeting the thermodynamic and kinetic potential requirements of the reactions,and by tuning the voltage to match the current densities of the cathode and anode,coupling reactions can be achieved under bias-free conditions.In this review,we provide an overview of the mechanisms of PEC coupling reactions and summarize photoelectrode catalysts along with their synthesis methods.We further explore advanced catalyst modification strategies and highlight the latest development in advanced PEC coupling systems,including photocathodic CO_(2)reduction,nitrate reduction,oxygen reduction,enzyme activation,coupled with photoanodic organic oxidation,biomass oxidation,and pollutant degradation.Additionally,advanced in situ characterization techniques for elucidating reaction mechanisms are discussed.Finally,we propose the challenges in catalyst design,reaction systems,and large-scale applications,while offering future perspectives for PEC coupling system.This work underscores the tremendous potential of PEC coupling systems in energy conversion and environmental remediation,and provides valuable insights for the future design of such coupling systems.展开更多
Are you tred of regular selfies?Try a self-photo studio!The lights and camera are ready for you.At the studio,you can fix your hair.There are clothes and props.You can use those and take fun photos.Bring your friends ...Are you tred of regular selfies?Try a self-photo studio!The lights and camera are ready for you.At the studio,you can fix your hair.There are clothes and props.You can use those and take fun photos.Bring your friends with you.Then you can take photos together.Pose in silly ways and have fun!You can take the photos home and remember your good time.展开更多
Sustainable and clean hydrogen development has been considered a mainstream trend in contemporary energy research.Heterogenous photo(electro)catalysis is a promising approach to producing hydrogen in an environmentall...Sustainable and clean hydrogen development has been considered a mainstream trend in contemporary energy research.Heterogenous photo(electro)catalysis is a promising approach to producing hydrogen in an environmentally friendly manner.Perovskites have emerged as an inexpensive,earth-abundant,and easily fabricated semiconductor material for photo(electro)catalysis.However,some of their shortcomings have limited the wide range of applications.In this mini-review,we present the fundamentals and applications of various perovskites for photo(electro)catalytic water splitting.In addition,we summarize advanced strategies for photo(electro)catalytic water splitting based on perovskites,focusing on the following approaches:intrinsic modulation of perovskites,functionalization of perovskites,and design of perovskite tandem systems.In summary,we point out the challenges and potential applications for perovskite solar water splitting and systematically describe various strategies to improve the photo(electro)catalysis performance of perovskites,illustrating the potential of using perovskites as key materials for solar water splitting.展开更多
Photocatalytic membranes hold significant potential for promoting pollutant degradation and reducing membrane fouling in filtration systems.Although extensive research has been conducted on the independent design of p...Photocatalytic membranes hold significant potential for promoting pollutant degradation and reducing membrane fouling in filtration systems.Although extensive research has been conducted on the independent design of photocatalysts or membrane materials to improve their catalytic and filtration performance,the complex structures and interface mechanisms,as well as insufficient light utilization,are still often overlooked,limiting the overall performance improvement of photocatalytic membranes.This work provides an overview of enhancement strategies involving restricted area effects,external fields,such as mechanical,magnetic,thermal,and electrical fields,as well as coupling techniques with advanced oxidation processes(e.g.,O_(3),Fenton,and persulfate oxidation)for dual enhancement of photocatalysts and membranes.In addition,the synthesis method of photocatalytic membranes and the influence of factors,such as light source type,frequency,and relative position on photocatalytic membrane performance were also studied.Finally,economic feasibility and pollutant removal performance were further evaluated to determine the promising enhancement strategies,paving the way for more efficient and scalable applications of photocatalytic membranes.展开更多
The pervasive use of photo editing applications such as Photoshop and FaceTune has significantly altered societal beauty standards, particularly for individuals with skin of color, often leading to unrealistic expecta...The pervasive use of photo editing applications such as Photoshop and FaceTune has significantly altered societal beauty standards, particularly for individuals with skin of color, often leading to unrealistic expectations regarding skin appearance and health. These tools allow users to smooth skin textures, lighten skin tones, and erase imperfections, perpetuating Eurocentric beauty ideals that frequently marginalize the natural diversity of skin tones and textures. Consequently, individuals with skin of color may seek dermatological interventions—such as skin lightening treatments, aggressive acne scar revisions, and other cosmetic procedures—aimed at achieving appearances that align more closely with digitally manipulated images. This pursuit of an unattainable aesthetic can result in increased dissatisfaction with common skin conditions like hyperpigmentation and keloids, which are often misrepresented in edited photos. Additionally, the psychological impact of these alterations can exacerbate feelings of inadequacy, contributing to conditions such as anxiety and body dysmorphic disorder. Dermatologists face the dual challenge of addressing patients’ clinical needs while also managing their expectations shaped by digital enhancements. To combat this, it is essential for dermatologists to integrate patient education that emphasizes the beauty of diverse skin tones and the discrepancies between digital images and authentic skin health. By fostering an understanding of realistic outcomes and promoting the acceptance of natural skin characteristics, dermatologists can empower individuals with skin of color to prioritize authentic skin health over digitally influenced ideals, ultimately leading to more satisfying dermatological care and improved self-image.展开更多
Developing efficient photocatalysts to address collaborative energy and environmental crises still faces significant challenges.In this report,we present a highly efficient MXene–based photocatalyst,which is combined...Developing efficient photocatalysts to address collaborative energy and environmental crises still faces significant challenges.In this report,we present a highly efficient MXene–based photocatalyst,which is combined with MoS_(2)nano patches and TiO_(2)/Ti_(3)C_(2)(TTC)nanowires through hydrothermal treatment.Of all the composites tested,the optimized photocatalyst gave a remarkable H_(2)and revolving polylactic acid(PLA)into pyruvic acid(PA).Achieving a remarkable H_(2)evolution rate of 637.1 and 243.2μmol g^(−1)h^(−1),in the presence of TEOA and PLA as a sacrificial reagent under UV-vis(λ≥365 nm)light irradiation.The improved photocatalytic activity is a result of the combination of dual cocatalyst on the surface of TTC photocatalyst,which create an ideal synergistic effect for the generation of PA and the production of H_(2)simultaneously.The MoS_(2)TiO_(2)/Ti_(3)C_(2)(MTT)composite can generate more photoexcited charge carriers,leading to the generation of more active radicals,which may enhance the system's photocatalytic activity.This work aims at demonstrating its future significance and guide the scientific community towards a more efficient approach to commercializing H_(2)through photocatalysis.展开更多
Every world cultural heritage is a letter written by humans to the future.They are ancienl symbols on the wall of stones or exquisite patterns in the palace,bearing the wisdom and glory of different civilizations.
On April 19th,"the Youth Table Tennis Programme—Photo Exhibition of Zhou Enlai and the Bandung Conference&China-ASEAN(Indonesia)Youth Table Tennis Training Camp"opened in Jakarta,Indonesia.The event was...On April 19th,"the Youth Table Tennis Programme—Photo Exhibition of Zhou Enlai and the Bandung Conference&China-ASEAN(Indonesia)Youth Table Tennis Training Camp"opened in Jakarta,Indonesia.The event was guided by the Chinese Embassy in Indonesia and co-organised by the ASEAN-China Centre(ACC),the Memorial to Zhou Enlai and Deng Yingchao,the China Friendship Foundation for Peace and Development,the Beijing One Heart Sphere Charity Foundation,and the Enlai Foundation.展开更多
The development of artificial photosensitive synapses with high sensitivity and biomimetic properties that combine innovative concepts and neuromorphic architectures is crucial to achieving highly integrated and flexi...The development of artificial photosensitive synapses with high sensitivity and biomimetic properties that combine innovative concepts and neuromorphic architectures is crucial to achieving highly integrated and flexible intelligent visual systems.Recently,graphene heterostructure-based photosensitive synaptic transistors have been extensively studied for this purpose.However,compared to traditional transistors,vertical structure thin film transistors(VTFTs)with ultra-short channels and advantages,such as high integration,have yet to be investigated in photosensitive synapses.Here,we report an ultra-thin VTFT featuring a graphene/W_(x)Se_(x-1)van der Waals heterostructure that combines photonic and neuromorphic elements.We demonstrate a VTFT in which the channel layer is formed by covalently bonded W_(x)Se_(x-1)nanomaterials produced by introducing Se atoms on the surface of a tungsten metal thin film deposited via radio-frequency sputtering.This structure successfully simulated the main synaptic function,exhib-ited photosensitive synaptic responses to ultraviolet(λ=365 nm)light,and demonstrated highly reliable electrical performance.Furthermore,the incorporation of gold nanoparticles changed the photosensitive synaptic response properties of the graphene/W_(x)Se_(x-1)heterostructure from excitatory to inhibitory,show-ing a responsivity of about∼14 A W-1,which was attributed to the heterojunction interface resonant effects and efficient charge transfer induced by localized surface plasmons.This further enabled optical artificial synaptic applications while operating with low voltage spikes and low light intensity.This work provides a novel strategy for integrating and developing biological and nano-electronic systems.展开更多
Light is arguably the most convement non-invasive stimulant to perturb or control specinc cnemical reactions in the biological systems. Upon light illumination, photosensitive molecules incur conformational changes or...Light is arguably the most convement non-invasive stimulant to perturb or control specinc cnemical reactions in the biological systems. Upon light illumination, photosensitive molecules incur conformational changes or formation/breaking of chemical bonds. Consequently, these molecules can be used to transfer signals from one location to another in the cell, from outside of the cell to the inside, or from a light bulb to the interior of animal tissues. The development of the photochemical reactions of organic compounds has paved the road towards their use in peptides and peptide-based biological applications. In this mini-review, we summarized the state-of-the-art development of photo-protecting groups for peptide photocaging including the un-caging mechanism of different PPGs, the synthesis of photo-caged peptides, and the recent applications of peptide photocaging in chemical biology.展开更多
In recent years,porous organic catalysts have been developed and become research hotspots in photo/electrocatalysis due to their inherent pores,high specific surface area,chemical and thermal stability,and diverse fun...In recent years,porous organic catalysts have been developed and become research hotspots in photo/electrocatalysis due to their inherent pores,high specific surface area,chemical and thermal stability,and diverse functional building blocks.Phenazine-linked organic catalysts,exhibited excellent conjugation,electrical conductivity,chemical,and thermal stability,could bring in N atoms with specific numbers and positions to regulate electron levels,anchor metals,and absorb near-infrared light,which expands solar energy utilization.These advantages of the phenazine-linked catalysts attracted our group and numerous researchers to conduct experimental and computational work on photo/electrocatalytic applications and mechanisms.This review summarizes the recent significant research progress,synthesis methods,photo/electrocatalytic performance,and applications of relative phenazine-linked catalysts.Furthermore,the photo/electrocatalytic mechanism was systematized and summarized by combining experiments and density functional theory calculations simultaneously.展开更多
Over the years immunotherapy has demonstrably improved the field of cancer treatment.However,achieving long-term survival for colorectal cancer(CRC)patients remains a significant unmet need.Combination immunotherapies...Over the years immunotherapy has demonstrably improved the field of cancer treatment.However,achieving long-term survival for colorectal cancer(CRC)patients remains a significant unmet need.Combination immunotherapies incor-porating targeted drugs like MEK or multi-kinase inhibitors have offered some palliative benefit.Nevertheless,substantial gaps remain in the current therapeutic armamentarium for CRC.In recent years,there has been a surge of interest in exploring novel treatment strategies,including the application of light-activated drugs in conjunction with optical devices.This approach holds promise for achie-ving localized and targeted delivery of cytotoxic agents,such as microtubule-targeting drugs,directly to cancerous cells within the colon.展开更多
The endeavor to attain prolonged stability and heightened electromagnetic interference shielding effec-tiveness(EMI SE)in polymer-matrix composites remains an arduous pursuit,particularly when subjected to external me...The endeavor to attain prolonged stability and heightened electromagnetic interference shielding effec-tiveness(EMI SE)in polymer-matrix composites remains an arduous pursuit,particularly when subjected to external mechanical trauma or adverse environmental conditions.In this context,a self-healing and efficient EMI shielding polycaprolactone(PCL)composite with a unique electromagnetic gradient and interface-metalized segregated structure is assembled through layer-by-layer casting and a hot-pressing process.The combined effect of the induction of the electromagnetic gradient layer and the massive mul-tiple interface reflection and scattering from the segregated-like structure results in an exceptional EMI SE of 57.0 dB and a low reflection(R)value of only 0.28.Additionally,the composite boasts impressive photothermal and electrothermal properties,allowing for self-healing under solar irradiation or electri-cal stimulation.Remarkably,this self-healing capability has been demonstrated through five cutting and healing cycles,exhibiting an impressive EMI SE retention rate of 88%.Consequently,the composite with rapid photo/electro-driven self-healing properties will be able to maintain EMI shielding performance.展开更多
文摘Photoelectrocatalysis(PEC)is extensively applied in diverse redox reactions.However,the traditional oxygen evolution reaction(OER)occurring at the(photo)anode is hindered by high thermodynamic demands and sluggish kinetics,resulting in excessive energy consumption and limited economic value of the O2 produced,thereby impeding the practical application of PEC reactions.To overcome these limitations,advanced anodic-cathodic coupling systems,as an emerging energy conversion technology,have garnered significant research interest.These systems substitute OER with lower potential,valuable oxidation reactions,significantly enhancing energy conversion efficiency,yielding high-value chemicals,while reducing energy consumption and environmental pollution.More importantly,by designing and optimizing photoelectrodes to generate sufficient photovoltage under illumination,meeting the thermodynamic and kinetic potential requirements of the reactions,and by tuning the voltage to match the current densities of the cathode and anode,coupling reactions can be achieved under bias-free conditions.In this review,we provide an overview of the mechanisms of PEC coupling reactions and summarize photoelectrode catalysts along with their synthesis methods.We further explore advanced catalyst modification strategies and highlight the latest development in advanced PEC coupling systems,including photocathodic CO_(2)reduction,nitrate reduction,oxygen reduction,enzyme activation,coupled with photoanodic organic oxidation,biomass oxidation,and pollutant degradation.Additionally,advanced in situ characterization techniques for elucidating reaction mechanisms are discussed.Finally,we propose the challenges in catalyst design,reaction systems,and large-scale applications,while offering future perspectives for PEC coupling system.This work underscores the tremendous potential of PEC coupling systems in energy conversion and environmental remediation,and provides valuable insights for the future design of such coupling systems.
文摘Are you tred of regular selfies?Try a self-photo studio!The lights and camera are ready for you.At the studio,you can fix your hair.There are clothes and props.You can use those and take fun photos.Bring your friends with you.Then you can take photos together.Pose in silly ways and have fun!You can take the photos home and remember your good time.
基金supported by the National Natural Science Foundation of China (No.62204067)Young Talent Support Project of Guangzhou Association for Science and Technology (No.QT-2023-051)+2 种基金industry support from Shenzhen Jinjia jituan Co.,Ltd with funding No.R00043the financial support from the Science and Technology Development Fund,Macao SAR (File no.FDCT-0125/2022/A and FDCT-0006/2023/RIB1)the National Natural Science Foundation of China (No.22305009)
文摘Sustainable and clean hydrogen development has been considered a mainstream trend in contemporary energy research.Heterogenous photo(electro)catalysis is a promising approach to producing hydrogen in an environmentally friendly manner.Perovskites have emerged as an inexpensive,earth-abundant,and easily fabricated semiconductor material for photo(electro)catalysis.However,some of their shortcomings have limited the wide range of applications.In this mini-review,we present the fundamentals and applications of various perovskites for photo(electro)catalytic water splitting.In addition,we summarize advanced strategies for photo(electro)catalytic water splitting based on perovskites,focusing on the following approaches:intrinsic modulation of perovskites,functionalization of perovskites,and design of perovskite tandem systems.In summary,we point out the challenges and potential applications for perovskite solar water splitting and systematically describe various strategies to improve the photo(electro)catalysis performance of perovskites,illustrating the potential of using perovskites as key materials for solar water splitting.
基金supported by the BRICS STI Framework Programme(No.52261145703)the Higher Education Discipline Innovation Project(National 111 Project,No.B16016)the Guangxi Key Research and Development Plan Project(AB24010117).
文摘Photocatalytic membranes hold significant potential for promoting pollutant degradation and reducing membrane fouling in filtration systems.Although extensive research has been conducted on the independent design of photocatalysts or membrane materials to improve their catalytic and filtration performance,the complex structures and interface mechanisms,as well as insufficient light utilization,are still often overlooked,limiting the overall performance improvement of photocatalytic membranes.This work provides an overview of enhancement strategies involving restricted area effects,external fields,such as mechanical,magnetic,thermal,and electrical fields,as well as coupling techniques with advanced oxidation processes(e.g.,O_(3),Fenton,and persulfate oxidation)for dual enhancement of photocatalysts and membranes.In addition,the synthesis method of photocatalytic membranes and the influence of factors,such as light source type,frequency,and relative position on photocatalytic membrane performance were also studied.Finally,economic feasibility and pollutant removal performance were further evaluated to determine the promising enhancement strategies,paving the way for more efficient and scalable applications of photocatalytic membranes.
文摘The pervasive use of photo editing applications such as Photoshop and FaceTune has significantly altered societal beauty standards, particularly for individuals with skin of color, often leading to unrealistic expectations regarding skin appearance and health. These tools allow users to smooth skin textures, lighten skin tones, and erase imperfections, perpetuating Eurocentric beauty ideals that frequently marginalize the natural diversity of skin tones and textures. Consequently, individuals with skin of color may seek dermatological interventions—such as skin lightening treatments, aggressive acne scar revisions, and other cosmetic procedures—aimed at achieving appearances that align more closely with digitally manipulated images. This pursuit of an unattainable aesthetic can result in increased dissatisfaction with common skin conditions like hyperpigmentation and keloids, which are often misrepresented in edited photos. Additionally, the psychological impact of these alterations can exacerbate feelings of inadequacy, contributing to conditions such as anxiety and body dysmorphic disorder. Dermatologists face the dual challenge of addressing patients’ clinical needs while also managing their expectations shaped by digital enhancements. To combat this, it is essential for dermatologists to integrate patient education that emphasizes the beauty of diverse skin tones and the discrepancies between digital images and authentic skin health. By fostering an understanding of realistic outcomes and promoting the acceptance of natural skin characteristics, dermatologists can empower individuals with skin of color to prioritize authentic skin health over digitally influenced ideals, ultimately leading to more satisfying dermatological care and improved self-image.
文摘Developing efficient photocatalysts to address collaborative energy and environmental crises still faces significant challenges.In this report,we present a highly efficient MXene–based photocatalyst,which is combined with MoS_(2)nano patches and TiO_(2)/Ti_(3)C_(2)(TTC)nanowires through hydrothermal treatment.Of all the composites tested,the optimized photocatalyst gave a remarkable H_(2)and revolving polylactic acid(PLA)into pyruvic acid(PA).Achieving a remarkable H_(2)evolution rate of 637.1 and 243.2μmol g^(−1)h^(−1),in the presence of TEOA and PLA as a sacrificial reagent under UV-vis(λ≥365 nm)light irradiation.The improved photocatalytic activity is a result of the combination of dual cocatalyst on the surface of TTC photocatalyst,which create an ideal synergistic effect for the generation of PA and the production of H_(2)simultaneously.The MoS_(2)TiO_(2)/Ti_(3)C_(2)(MTT)composite can generate more photoexcited charge carriers,leading to the generation of more active radicals,which may enhance the system's photocatalytic activity.This work aims at demonstrating its future significance and guide the scientific community towards a more efficient approach to commercializing H_(2)through photocatalysis.
文摘Every world cultural heritage is a letter written by humans to the future.They are ancienl symbols on the wall of stones or exquisite patterns in the palace,bearing the wisdom and glory of different civilizations.
文摘On April 19th,"the Youth Table Tennis Programme—Photo Exhibition of Zhou Enlai and the Bandung Conference&China-ASEAN(Indonesia)Youth Table Tennis Training Camp"opened in Jakarta,Indonesia.The event was guided by the Chinese Embassy in Indonesia and co-organised by the ASEAN-China Centre(ACC),the Memorial to Zhou Enlai and Deng Yingchao,the China Friendship Foundation for Peace and Development,the Beijing One Heart Sphere Charity Foundation,and the Enlai Foundation.
基金supported by the National Research Foundation of Korea,funded by the Korean government(Nos.2016R1A3B1908249 and 2020R1A2C3013480).
文摘The development of artificial photosensitive synapses with high sensitivity and biomimetic properties that combine innovative concepts and neuromorphic architectures is crucial to achieving highly integrated and flexible intelligent visual systems.Recently,graphene heterostructure-based photosensitive synaptic transistors have been extensively studied for this purpose.However,compared to traditional transistors,vertical structure thin film transistors(VTFTs)with ultra-short channels and advantages,such as high integration,have yet to be investigated in photosensitive synapses.Here,we report an ultra-thin VTFT featuring a graphene/W_(x)Se_(x-1)van der Waals heterostructure that combines photonic and neuromorphic elements.We demonstrate a VTFT in which the channel layer is formed by covalently bonded W_(x)Se_(x-1)nanomaterials produced by introducing Se atoms on the surface of a tungsten metal thin film deposited via radio-frequency sputtering.This structure successfully simulated the main synaptic function,exhib-ited photosensitive synaptic responses to ultraviolet(λ=365 nm)light,and demonstrated highly reliable electrical performance.Furthermore,the incorporation of gold nanoparticles changed the photosensitive synaptic response properties of the graphene/W_(x)Se_(x-1)heterostructure from excitatory to inhibitory,show-ing a responsivity of about∼14 A W-1,which was attributed to the heterojunction interface resonant effects and efficient charge transfer induced by localized surface plasmons.This further enabled optical artificial synaptic applications while operating with low voltage spikes and low light intensity.This work provides a novel strategy for integrating and developing biological and nano-electronic systems.
基金Financial support for this work came from the University Grants Committee of Hong Kong (GRF Nos. 14321116 and 14306317, and AoE/M-09/12)
文摘Light is arguably the most convement non-invasive stimulant to perturb or control specinc cnemical reactions in the biological systems. Upon light illumination, photosensitive molecules incur conformational changes or formation/breaking of chemical bonds. Consequently, these molecules can be used to transfer signals from one location to another in the cell, from outside of the cell to the inside, or from a light bulb to the interior of animal tissues. The development of the photochemical reactions of organic compounds has paved the road towards their use in peptides and peptide-based biological applications. In this mini-review, we summarized the state-of-the-art development of photo-protecting groups for peptide photocaging including the un-caging mechanism of different PPGs, the synthesis of photo-caged peptides, and the recent applications of peptide photocaging in chemical biology.
基金supported by the Natural Science Foundation of China(52273288 and U2102211)the Natural Science Foundation of Heilongjiang Province of China(LH2021B014)the Fundamental Research Foundation for Universities of Heilongjiang Province(2021-KYYWF-0004).
文摘In recent years,porous organic catalysts have been developed and become research hotspots in photo/electrocatalysis due to their inherent pores,high specific surface area,chemical and thermal stability,and diverse functional building blocks.Phenazine-linked organic catalysts,exhibited excellent conjugation,electrical conductivity,chemical,and thermal stability,could bring in N atoms with specific numbers and positions to regulate electron levels,anchor metals,and absorb near-infrared light,which expands solar energy utilization.These advantages of the phenazine-linked catalysts attracted our group and numerous researchers to conduct experimental and computational work on photo/electrocatalytic applications and mechanisms.This review summarizes the recent significant research progress,synthesis methods,photo/electrocatalytic performance,and applications of relative phenazine-linked catalysts.Furthermore,the photo/electrocatalytic mechanism was systematized and summarized by combining experiments and density functional theory calculations simultaneously.
文摘Over the years immunotherapy has demonstrably improved the field of cancer treatment.However,achieving long-term survival for colorectal cancer(CRC)patients remains a significant unmet need.Combination immunotherapies incor-porating targeted drugs like MEK or multi-kinase inhibitors have offered some palliative benefit.Nevertheless,substantial gaps remain in the current therapeutic armamentarium for CRC.In recent years,there has been a surge of interest in exploring novel treatment strategies,including the application of light-activated drugs in conjunction with optical devices.This approach holds promise for achie-ving localized and targeted delivery of cytotoxic agents,such as microtubule-targeting drugs,directly to cancerous cells within the colon.
基金supported by the Sichuan Science and Technology Program(Nos.2023YFG0210,2022YFG0276,24NSFSC1700).
文摘The endeavor to attain prolonged stability and heightened electromagnetic interference shielding effec-tiveness(EMI SE)in polymer-matrix composites remains an arduous pursuit,particularly when subjected to external mechanical trauma or adverse environmental conditions.In this context,a self-healing and efficient EMI shielding polycaprolactone(PCL)composite with a unique electromagnetic gradient and interface-metalized segregated structure is assembled through layer-by-layer casting and a hot-pressing process.The combined effect of the induction of the electromagnetic gradient layer and the massive mul-tiple interface reflection and scattering from the segregated-like structure results in an exceptional EMI SE of 57.0 dB and a low reflection(R)value of only 0.28.Additionally,the composite boasts impressive photothermal and electrothermal properties,allowing for self-healing under solar irradiation or electri-cal stimulation.Remarkably,this self-healing capability has been demonstrated through five cutting and healing cycles,exhibiting an impressive EMI SE retention rate of 88%.Consequently,the composite with rapid photo/electro-driven self-healing properties will be able to maintain EMI shielding performance.
