Novel photoelectrochemical sensor for cholesterol based on CH3NH3PbBr3 perovskite /TiO2 inverse opal heterojunction coated with molecularly imprinted polymers

Application of Biosensors in the Detection of SARS-CoV-2

“…, 具有分析速度快、超灵敏、 高选择性、成本低和易操作等优势 [23][24] , 被认为是一种 能有效检测疾病标志物的潜在新方法. 我们实验室目前 已制备基于分子印迹技术、免标记免疫电化学、荧光传 感技术、光电化学传感技术的多种疾病标志物生物传感 器, 并完成对不同目标物(如癌胚抗原、人免疫球蛋白 G、溶菌酶、高半胱氨酸、胆固醇等)定量检测工作 [25][26][27][28][29] ; 此外, 将制备的聚合物作为传感单元与电化学工作站、 荧光分光光度计、紫外光谱及超高效液相色谱仪分析设 备联用对目标物进行定量检测与分析, 在生物传感器构 建与检测方面积累了丰富的实验数据和经验. 本综述主 要简介了用于检测新冠病毒的电化学传感器、光学传感 器、可穿戴生物传感器以及基于纳米材料(金纳米、磁 性纳米颗粒)生物传感器的研究进展(图 1), 并对生物传 感器检测新冠病毒未来的发展做出了展望.…”

Molecularly imprinted polymer coating-assisted CsPbBr3 perovskite quantum dots/TiO2 inverse opal heterojunctions for the photoelectrochemical detection of cholesterol

“…Their distinct advantages, such as high stability and low-budget production, make MIPs an attractive alternative to natural receptors 43,44 because the MIP matrix-encapsulated QDs can not only assemble the recognition sites onto the surface of the perovskite-based PEC sensor, but they can also enhance the stability of the perovskite materials. MIP-capped CsPbX 3 perovskite-based fluorescence sensors, 45,46 luminescence sensors, 47 electrochemiluminescence sensors, [48][49][50] photo-luminescence sensors 51 and photochemical sensors [52][53][54][55][56] have been reported. However, except for one of our studies, 54 in relevant studies conducted thus far, there have been no other perovskite/MIP-based sensors applied to serum or blood samples.…”

“…MIP-capped CsPbX 3 perovskite-based fluorescence sensors, 45,46 luminescence sensors, 47 electrochemiluminescence sensors, [48][49][50] photo-luminescence sensors 51 and photochemical sensors [52][53][54][55][56] have been reported. However, except for one of our studies, 54 in relevant studies conducted thus far, there have been no other perovskite/MIP-based sensors applied to serum or blood samples. The perovskite PEC sensor for salicylic acid 52 and CHOL 53 was used in serum sample treated by organic solvents.…”

“…Due to their outstanding emission efficiencies, metal halide perovskites have shown great potential in the photoelectric sensor field. In this paper, based on our previous work, 54 after incorporating CsPbBr 3 into TiO 2 IOPCs, MIP was used to functionalize and further encapsulate CsPbBr 3 . Another novel lead halide perovskite PEC sensor was then successfully fabricated herein, showing superior stability, high detection sensitivity and selectivity in an aqueous serum sample.…”

A halide perovskite/lead sulfide heterostructure with enhanced photoelectrochemical performance for the sensing of alkaline phosphatase (ALP)

“…Halide perovskites have attracted extensive attention for biosensing applications, owing to their excellent optical and photoelectric properties, and simple and controlled synthetic method. 1 A lot of halide perovskite materials have been utilized in colorimetric, 2 fluorescence, 3 electrochemical, 4 and photoelectrochemical (PEC) biosensors 5 benefiting from their high absorption coefficient, low excitation banding energy, high quantum yields and high charge-carrier mobility. 6 In particular, with high photoelectric conversion efficiency and impressive ionic conductivity, halide perovskite materials have been applied in photovoltaic cells, 7 light-emitting diodes, 8 and photoelectric catalysis applications, 9 as well as the photoelectric active material in photoelectrochemical biosensing applications.…”