Natural resources are practically infinitely abundant in nature,which stimulates scientists to create new materials with inventive uses and minimal environmental impact.Due to the various benefits of natural carbon do...Natural resources are practically infinitely abundant in nature,which stimulates scientists to create new materials with inventive uses and minimal environmental impact.Due to the various benefits of natural carbon dots(NCDs)from them has received a lot of attention recently.Natural products-derived carbon dots have recently emerged as a highly promising class of nanomaterials,showcasing exceptional properties and eco-friendly nature,which make them appealing for diverse applications in various fields such as biomedical,environmental sensing and monitoring,energy storage and conversion,optoelectronics and photonics,agriculture,quantum computing,nanomedicine and cancer therapy.Characterization techniques such as Photoinduced electron transfer,Aggregation-Induced-Emission(AIE),Absorbance,Fluorescence in UV-Vis and NIR Regions play crucial roles in understanding the structural and optical properties of Carbon dots(CDs).The exceptional photoluminescence properties exhibited by CDs derived from natural products have paved the way for applications in tissue engineering,cancer treatment,bioimaging,sensing,drug delivery,photocatalysis,and promising remarkable advancements in these fields.In this review,we summarized the various synthesis methods,physical and optical properties,applications,challenges,future prospects of natural products-derived carbon dots etc.In this expanding sector,the difficulties and prospects for NCD-based materials research will also be explored.展开更多
Understanding the physical mechanisms governing aggregation-induced-emission(AIE)and aggrega-tion-caused-quenching plays a vital role in developing functional AIE materials.In this work,tetraphenylethene(TPE,a classic...Understanding the physical mechanisms governing aggregation-induced-emission(AIE)and aggrega-tion-caused-quenching plays a vital role in developing functional AIE materials.In this work,tetraphenylethene(TPE,a classical AiEgen)and naphthalimide(NI,a popular fluorophore with ACQ characteristics)were connected through non-conjugated linkages and conjugated linkages.We showed that the nonconjugated-linkage of TPE to NI fragments leads to substantial PET in molecular aggregates and ACQ.In con trast,the conjugated conn ection between TPE and NI moieties results in the AIE phenomenon by suppressing twisted intramolecular charge transfer.This work provides an important guideline for the rational design of AIE materials.展开更多
文摘Natural resources are practically infinitely abundant in nature,which stimulates scientists to create new materials with inventive uses and minimal environmental impact.Due to the various benefits of natural carbon dots(NCDs)from them has received a lot of attention recently.Natural products-derived carbon dots have recently emerged as a highly promising class of nanomaterials,showcasing exceptional properties and eco-friendly nature,which make them appealing for diverse applications in various fields such as biomedical,environmental sensing and monitoring,energy storage and conversion,optoelectronics and photonics,agriculture,quantum computing,nanomedicine and cancer therapy.Characterization techniques such as Photoinduced electron transfer,Aggregation-Induced-Emission(AIE),Absorbance,Fluorescence in UV-Vis and NIR Regions play crucial roles in understanding the structural and optical properties of Carbon dots(CDs).The exceptional photoluminescence properties exhibited by CDs derived from natural products have paved the way for applications in tissue engineering,cancer treatment,bioimaging,sensing,drug delivery,photocatalysis,and promising remarkable advancements in these fields.In this review,we summarized the various synthesis methods,physical and optical properties,applications,challenges,future prospects of natural products-derived carbon dots etc.In this expanding sector,the difficulties and prospects for NCD-based materials research will also be explored.
基金financial support from the National Natural Science Foundation of China (Nos.21676113,21772054)Distinguished Young Scholar Program of Hubei Province (No. 2018CFA079)+5 种基金the 111 Project B17019the Scholar Support Program of CCNU (No.0900-31101090002)the Excellent Doctoral Dissertation Cultivation Grant of CCNU from the colleges’ basic research and operation grant (MOE,No.2019YBZZ029)supported by Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules (No. KLSAOFM2012),Hubei University,Chinasupported by excellent doctorial dissertation cultivation grant of CCNU from the colleges’ basic research and operation of MOE (No.2019YBZZ029)A*STAR under its Advanced Manufacturing and Engineering Program (No.A2083c0051)
文摘Understanding the physical mechanisms governing aggregation-induced-emission(AIE)and aggrega-tion-caused-quenching plays a vital role in developing functional AIE materials.In this work,tetraphenylethene(TPE,a classical AiEgen)and naphthalimide(NI,a popular fluorophore with ACQ characteristics)were connected through non-conjugated linkages and conjugated linkages.We showed that the nonconjugated-linkage of TPE to NI fragments leads to substantial PET in molecular aggregates and ACQ.In con trast,the conjugated conn ection between TPE and NI moieties results in the AIE phenomenon by suppressing twisted intramolecular charge transfer.This work provides an important guideline for the rational design of AIE materials.
