Facile and ecofriendly loading of micro/nano function-specific substances to create functional materials is a trend being pursued by researchers.However,current micro/nano particles loading approaches are often hinder...Facile and ecofriendly loading of micro/nano function-specific substances to create functional materials is a trend being pursued by researchers.However,current micro/nano particles loading approaches are often hindered by issues such as uneven distribution,unsatisfactory stability and complicate procedure.In this work,we present an aqueous phase reshaping method that only utilizes the moisture to fabricate the"bubble particles",which could perfectly cater to the topography of the substrate.The green preparation of bubble particles adopts an absolutely zero-pollution method,realizing the firm loading of particles on the substrate.Integrating the preparation and loading of particles overcomes the traditional complicate process,while the aqueous phase reshaping ensures uniform and firm loading of the"bubble particles"onto the substrate.Our mechanism demonstrates a significant enhancement in the interface relation after aqueous phase reshaping,with a 121-fold increase in contact surface area achieved by reducing the height by 1μm.Furthermore,we explore for the first time the influence of the nature of the receiving substrate on the interface morphology of particles during electrostatic spraying,which has important guiding significance for the interface relationship of electrostatic spraying and even electrostatic spinning materials.We also screen out the natural antibacterial essential oil linalool as the effective specialized antibacterial agent,which can specifically inhibit the odor-producing Proteus in urine,with an antibacterial rate of up to 100%.Taken together,this simple,ecofriendly method for fabricating functional materials with optimal interface stability appears highly promising for use in various products formed by electrostatic spraying/spinning.展开更多
Polymerization-induced self-assembly(PISA)enables the simultaneous growth and self-assembly of block copolymers in one pot and therefore has developed into a high-efficiency platform for the preparation of polymer ass...Polymerization-induced self-assembly(PISA)enables the simultaneous growth and self-assembly of block copolymers in one pot and therefore has developed into a high-efficiency platform for the preparation of polymer assemblies with high concentration and excellent reproducibility.During the past decade,the driving force of PISA has extended from hydrophobic interactions to other supramolecular interactions,which has greatly innovated the design of PISA,enlarged the monomer/solvent toolkit,and endowed the polymer assemblies with intrinsic dynamicity and responsiveness.To unravel the important role of driving forces in the formation of polymeric assemblies,this review summarized the recent development of PISA from the perspective of driving forces.Motivated by this goal,here we give a brief overview of the basic principles of PISA and systematically discuss the various driving forces in the PISA system,including hydrophobic interactions,hydrogen bonding,electrostatic interactions,andπ-πinteractions.Furthermore,PISA systems that are driven and regulated by crystallization or liquid crystalline ordering were also highlighted.展开更多
Density functional theory （DFT） calculations on two isomers of C68 with the minimal number of fused pentagon pairs, its anions and Sc3N as well as Sc3N@C68 （6140） metallofullerene were carded out at the B3LYP/6-3...Density functional theory （DFT） calculations on two isomers of C68 with the minimal number of fused pentagon pairs, its anions and Sc3N as well as Sc3N@C68 （6140） metallofullerene were carded out at the B3LYP/6-31G^＊ level. The optimized configurations and electrostatic potential distributions have been obtained. The calculated results show that the electrostatic potentials of C68 （6140） inside the sphere have three minima in the middle of the double bonds at fusion of two hexagonal rings. In contrast, potential minimum Vmin（r） of C68 （6275） inside the sphere occurs at the center of the sphere. Concerning the two isomers of C68, the largest regions with the most negative MEP outside the sphere are both localized in the neighborhood of pentagon-pentagon vertex fusions. They constitute the most probable active sites in chemical reactions. Our results present a reasonable explanation for the bonding between scandium atoms and fullerene cage.展开更多
HIV/AIDS is an immune deficiency disease, caused by an RNA virus (positively charged pathogen). It is still being regarded as mysteriously incurable but in Nigeria many patients have been cured (they became HIV-antibo...HIV/AIDS is an immune deficiency disease, caused by an RNA virus (positively charged pathogen). It is still being regarded as mysteriously incurable but in Nigeria many patients have been cured (they became HIV-antibody and antigen negative) by exploiting electrostatic attraction between pathogens and opposite electrical charges that are on Nanoparticles of Medicinal synthetic Aluminum-magnesium silicate (MSAMS) and by using antioxidants to relieve oxidative stress. To confirm the cure, as permanent, a patient (adult male) whose CD4 count increased (P < 0.05) from 685 to 820 while his viral load became undetectable (<20) and he became HIV-negative (antibody and antigen) following the treatment, was tested, every month, post treatment, for HIV-antibody. He has remained HIV-negative for 10 months without being on any antiretroviral medicine (ARV). Longest window period (period HIV-infected person may test antibody-negative) is only 6 months. These results confirm that treatment with the MSAMS and antioxidants normalizes immunity and terminates HIV-infections.展开更多
The amphiphilic derivatives of L-histidine with different alkyl chains, NIPCA, UIPCA, and TIPCA, have been designed and their self-assembly behaviors with citric acid were investigated. All L-histidine derivatives can...The amphiphilic derivatives of L-histidine with different alkyl chains, NIPCA, UIPCA, and TIPCA, have been designed and their self-assembly behaviors with citric acid were investigated. All L-histidine derivatives can form hydrogels with citric acid, and exhibit the increasing gelation ability and mechanical strength with the increasing chain length. The gelation ability is considered to be affected by the synergistic effect of electrostatic interaction, hydrogen bonding and hydrophobic interaction. The hydrogels exhibit excellent releasing selectivity for charged dyes in aqueous solution, enlightening people to utilize this kind of hydrogels as intelligent carriers to separate the mixtures of charged dyes.展开更多
The nature of halogen bonding in five complexes formed between the thiocyanate （NCS） radical and a BrC1 molecule was analyzed by quantum theory of atoms in molecules （QTAIM） and electron-localization function （EL...The nature of halogen bonding in five complexes formed between the thiocyanate （NCS） radical and a BrC1 molecule was analyzed by quantum theory of atoms in molecules （QTAIM） and electron-localization function （ELF） in this paper. The calculated results show that the geometry of the halogen atom bonded at the N-atom is stable than those bonded at S- or C-atom. The molecular electrostatic potentials determine the geometries and stabilities of the complexes. The valence basin of the S- or N-atom in the electron-donating NCS radical is compressed and its population decreases during the process of formation of the halogen-bonded complexes.展开更多
基金supported by Capacity building project of local universities Science and Technology Commission of Shanghai Municipality(No.19090503500)the National Natural Science Foundation of China(No.51803028)+2 种基金Shanghai Gaofeng&Gaoyuan Project for University Academic Program Development,Collaborative Innovation Center of Fragrance Flavour and Cosmetics,the Fundamental Research Funds for the Central Universities,DHU Distinguished Young Professor Program(No.LZB2021004)the Fundamental Research Funds for the Central Universities and Graduate Student Innovation Fund of Donghua University(No.CUSF-DH-D-2021020)The authors would like to acknowledge the fellowship from the China Scholarship Council(CSC)under Grant CSC No.202106630044.
文摘Facile and ecofriendly loading of micro/nano function-specific substances to create functional materials is a trend being pursued by researchers.However,current micro/nano particles loading approaches are often hindered by issues such as uneven distribution,unsatisfactory stability and complicate procedure.In this work,we present an aqueous phase reshaping method that only utilizes the moisture to fabricate the"bubble particles",which could perfectly cater to the topography of the substrate.The green preparation of bubble particles adopts an absolutely zero-pollution method,realizing the firm loading of particles on the substrate.Integrating the preparation and loading of particles overcomes the traditional complicate process,while the aqueous phase reshaping ensures uniform and firm loading of the"bubble particles"onto the substrate.Our mechanism demonstrates a significant enhancement in the interface relation after aqueous phase reshaping,with a 121-fold increase in contact surface area achieved by reducing the height by 1μm.Furthermore,we explore for the first time the influence of the nature of the receiving substrate on the interface morphology of particles during electrostatic spraying,which has important guiding significance for the interface relationship of electrostatic spraying and even electrostatic spinning materials.We also screen out the natural antibacterial essential oil linalool as the effective specialized antibacterial agent,which can specifically inhibit the odor-producing Proteus in urine,with an antibacterial rate of up to 100%.Taken together,this simple,ecofriendly method for fabricating functional materials with optimal interface stability appears highly promising for use in various products formed by electrostatic spraying/spinning.
基金National Natural Science Foundation of China,Grant/Award Number:21905171。
文摘Polymerization-induced self-assembly(PISA)enables the simultaneous growth and self-assembly of block copolymers in one pot and therefore has developed into a high-efficiency platform for the preparation of polymer assemblies with high concentration and excellent reproducibility.During the past decade,the driving force of PISA has extended from hydrophobic interactions to other supramolecular interactions,which has greatly innovated the design of PISA,enlarged the monomer/solvent toolkit,and endowed the polymer assemblies with intrinsic dynamicity and responsiveness.To unravel the important role of driving forces in the formation of polymeric assemblies,this review summarized the recent development of PISA from the perspective of driving forces.Motivated by this goal,here we give a brief overview of the basic principles of PISA and systematically discuss the various driving forces in the PISA system,including hydrophobic interactions,hydrogen bonding,electrostatic interactions,andπ-πinteractions.Furthermore,PISA systems that are driven and regulated by crystallization or liquid crystalline ordering were also highlighted.
基金the Department of Education of Liaoning Province (No. 2024201057)
文摘Density functional theory （DFT） calculations on two isomers of C68 with the minimal number of fused pentagon pairs, its anions and Sc3N as well as Sc3N@C68 （6140） metallofullerene were carded out at the B3LYP/6-31G^＊ level. The optimized configurations and electrostatic potential distributions have been obtained. The calculated results show that the electrostatic potentials of C68 （6140） inside the sphere have three minima in the middle of the double bonds at fusion of two hexagonal rings. In contrast, potential minimum Vmin（r） of C68 （6275） inside the sphere occurs at the center of the sphere. Concerning the two isomers of C68, the largest regions with the most negative MEP outside the sphere are both localized in the neighborhood of pentagon-pentagon vertex fusions. They constitute the most probable active sites in chemical reactions. Our results present a reasonable explanation for the bonding between scandium atoms and fullerene cage.
文摘HIV/AIDS is an immune deficiency disease, caused by an RNA virus (positively charged pathogen). It is still being regarded as mysteriously incurable but in Nigeria many patients have been cured (they became HIV-antibody and antigen negative) by exploiting electrostatic attraction between pathogens and opposite electrical charges that are on Nanoparticles of Medicinal synthetic Aluminum-magnesium silicate (MSAMS) and by using antioxidants to relieve oxidative stress. To confirm the cure, as permanent, a patient (adult male) whose CD4 count increased (P < 0.05) from 685 to 820 while his viral load became undetectable (<20) and he became HIV-negative (antibody and antigen) following the treatment, was tested, every month, post treatment, for HIV-antibody. He has remained HIV-negative for 10 months without being on any antiretroviral medicine (ARV). Longest window period (period HIV-infected person may test antibody-negative) is only 6 months. These results confirm that treatment with the MSAMS and antioxidants normalizes immunity and terminates HIV-infections.
基金funded by the National Natural Science Foundation of China(No. 21573134)
文摘The amphiphilic derivatives of L-histidine with different alkyl chains, NIPCA, UIPCA, and TIPCA, have been designed and their self-assembly behaviors with citric acid were investigated. All L-histidine derivatives can form hydrogels with citric acid, and exhibit the increasing gelation ability and mechanical strength with the increasing chain length. The gelation ability is considered to be affected by the synergistic effect of electrostatic interaction, hydrogen bonding and hydrophobic interaction. The hydrogels exhibit excellent releasing selectivity for charged dyes in aqueous solution, enlightening people to utilize this kind of hydrogels as intelligent carriers to separate the mixtures of charged dyes.
基金Project supported by the National Natural Science Foundation of China （Nos. 20973053, 20801017）, the Natural Science Foundation of Hebei Province （Nos. B 2011205058, B2010000371）, the Education Department Foundation of Hebei Province （Nos. 2009137, ZD2010126 ）.
文摘The nature of halogen bonding in five complexes formed between the thiocyanate （NCS） radical and a BrC1 molecule was analyzed by quantum theory of atoms in molecules （QTAIM） and electron-localization function （ELF） in this paper. The calculated results show that the geometry of the halogen atom bonded at the N-atom is stable than those bonded at S- or C-atom. The molecular electrostatic potentials determine the geometries and stabilities of the complexes. The valence basin of the S- or N-atom in the electron-donating NCS radical is compressed and its population decreases during the process of formation of the halogen-bonded complexes.
