A facile method was proposed to prepare stretchable silver-based composite coatings with excellent conductivity and stability for flexible electronics.Silver coating was firstly deposited on thermoplastic polyurethane...A facile method was proposed to prepare stretchable silver-based composite coatings with excellent conductivity and stability for flexible electronics.Silver coating was firstly deposited on thermoplastic polyurethane(TPU)elastomer rubber surface via two-component spraying technique,then the superhydrophobic surface was obtained by one-step electrodeposition of cerium compounds(CeM)and graphene nanosheets(GNS)to produce Ag/CeM/GNS composite coatings.The obtained Ag/CeM/GNS composite coatings maintained high conductivity after experiencing bending cycles and stretching cycles.Furthermore,the as-prepared Ag/CeM/GNS composite coatings showed excellent self-cleaning and anti-fouling properties,and the corrosion resistance has improved significantly compared to the original Ag coating.In addition,the Ag/CeM/GNS composite coatings could drive the circuit normally in the states of tensile,bending and twisting deformation,showing excellent mechanical stability and applicability.As a result,it is believed that the prepared Ag/CeM/GNS composite coatings with excellent conductivity and stability have promising applications for flexible electronics in harsh conditions.展开更多
Cesarean scar pregnancy （CSP） occurs when a gestation sac is implanted in the previous lower segment cesarean scar. The incidence of CSP is increasing worldwide. Uterine ateriovenous malformation （UA VM） is a rare...Cesarean scar pregnancy （CSP） occurs when a gestation sac is implanted in the previous lower segment cesarean scar. The incidence of CSP is increasing worldwide. Uterine ateriovenous malformation （UA VM） is a rare gynecologic disease. Both of these diseases can cause severe vaginal bleeding and produce high morbidity rate. We describe a ease of UA VM induced by a CSP. The patient suffered intermittent vaginal bleeding after two dilatation and curettage （D＆C） one month before admission. The suspected diagnosis of CSP and UA VM were made after using transvaginal ultra- sound with color Doppler and human chorionic gonadotropin （hCG） examination. Resection of the involved area including the cesarean scar and UA VM by laparotomy was performed successfully and the diagnosis was confirmed by the last pathologic result.展开更多
基金support from the National Natural Science Foundation of China(No.52105186)the Guangdong Basic and Applied Basic Research Foundation,China(Nos.2019A1515011282,2022A1515011547,2021B1515120014)the Fangchenggang Scientific Research and Technology Development Project,China(No.AB21014008).
文摘A facile method was proposed to prepare stretchable silver-based composite coatings with excellent conductivity and stability for flexible electronics.Silver coating was firstly deposited on thermoplastic polyurethane(TPU)elastomer rubber surface via two-component spraying technique,then the superhydrophobic surface was obtained by one-step electrodeposition of cerium compounds(CeM)and graphene nanosheets(GNS)to produce Ag/CeM/GNS composite coatings.The obtained Ag/CeM/GNS composite coatings maintained high conductivity after experiencing bending cycles and stretching cycles.Furthermore,the as-prepared Ag/CeM/GNS composite coatings showed excellent self-cleaning and anti-fouling properties,and the corrosion resistance has improved significantly compared to the original Ag coating.In addition,the Ag/CeM/GNS composite coatings could drive the circuit normally in the states of tensile,bending and twisting deformation,showing excellent mechanical stability and applicability.As a result,it is believed that the prepared Ag/CeM/GNS composite coatings with excellent conductivity and stability have promising applications for flexible electronics in harsh conditions.
文摘Cesarean scar pregnancy （CSP） occurs when a gestation sac is implanted in the previous lower segment cesarean scar. The incidence of CSP is increasing worldwide. Uterine ateriovenous malformation （UA VM） is a rare gynecologic disease. Both of these diseases can cause severe vaginal bleeding and produce high morbidity rate. We describe a ease of UA VM induced by a CSP. The patient suffered intermittent vaginal bleeding after two dilatation and curettage （D＆C） one month before admission. The suspected diagnosis of CSP and UA VM were made after using transvaginal ultra- sound with color Doppler and human chorionic gonadotropin （hCG） examination. Resection of the involved area including the cesarean scar and UA VM by laparotomy was performed successfully and the diagnosis was confirmed by the last pathologic result.
