FOOD CHEMISTRY
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2024
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IF 8.5
Chen Yin,Xin Ding,Zhihao Lin,Jiayong Cao,Weiye Shi,Jian Wang,Dan Xu,Donghui Xu,Yuan Liu,Guangyang Liu
Fresh strawberries are easily contaminated by microorganisms after picking. Therefore, how to effectively store and keep fresh strawberries has been a hot topic for scientists to study. In this study, we prepared a leaf shaped metal organic framework nanomaterial loaded with quercetin (Quercetin@ZIF-L) at first, which can achieve effective loading of quercetin (96%) within 45 min and has a controlled release effect under acidic conditions. In addition, by cleverly combining satellite graphene oxide @ silver nanoparticles (GO@AgNPs) with slow precipitation performance, Quercetin@ZIF-L/GO@AgNPs nanocomposite film with larger pore size and larger specific surface area was prepared by scraping method. The characterization data of water flux , retention rate, flux recovery rate and water vapor permeability show that the composite film has good physical properties. The experiment of film packaging showed that the fresh life of strawberry could be extended from 3 to 8 days, which significantly improved the storage and freshness cycle of strawberry. At the same time, the metal migration test proved that the residual amount of silver ion in strawberry met the EU standard and zinc ions are beneficial to the health, enriching the types of high-performance fresh-keeping materials and broadening the application.
研究领域:
食品科学
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材料科学
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2023
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IF 5.2
Aijing Li,Xinpeng Chen,Yurong Sun,Jin Cheng,Ping Yao,Tieling Xing,Guoqiang Chen
An essential factor affecting the photocatalytic efficiency of a catalyst is the efficient separation of photogenerated electrons and holes. In the present study, a novel heterojunction material, PCN@GO/AgNPs, was synthesized with the aim of improving the photocatalytic performance. This achievement was accomplished through the establishment of a heterojunction between graphitic phase carbon nitride (PCN) and nano silver (AgNO 3 ). The PCN was prepared from melamine powder calcined at high temperature under nitrogen environment, and was modified by graphene oxide (GO) to form heterojunction with silver nanoparticles, which resulted in a significant improvement in the photocatalytic efficiency of the catalyst. Under ultraviolet（UV）excitation, the catalytic rate constant of PCN@GO/AgNPs heterojunction on RhB dye can reach 10.594 × 10 −2 min −1 . This research represents a promising strategy to increase the surface area of PCN photocatalysts through simply doping noble metal and thus improving photocatalytic performance, which contributes to understand the reaction mechanism of photocatalytic effect.
研究领域:
材料科学
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环境科学
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化学
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DOI
高影响因子
ACS Applied Nano Materials
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2026
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IF 5.8
Yu-Long Guo,Xin-Yi Luo,Qing-Xin Meng,Mei-Qi Ye,Tong-Yu Li,Qinxing Xie,Di Zhang,Hong-Zhang Geng
Abstract As application scenarios and usage conditions become increasingly complex, traditional indium tin oxide materials are limited in meeting diverse application demands due to their low flexibility and high cost. This study proposed a ternary nanocomposite strategy combining zero-dimensional AgNPs, one-dimensional AgNWs, and two-dimensional graphene oxide (GO) nanosheets to fabricate transparent conductive films (TCFs) with excellent environmental stability and optoelectronic properties, suitable for applications such as Joule heating, electromagnetic interference (EMI) shielding, and organic light-emitting diode (OLED) devices. By growing AgNPs in situ on the surface of GO, combined with a simple solution-processing technique and integration with silver nanowires (AgNWs), this study developed GO-AgNP/AgNW TCFs featuring a dual-layer structure. Test results showed that the TCF achieved a sheet resistance of 2.98 Ω/sq, a light transmittance of 78.6% at 550 nm, a haze of 11.5%, and a figure of merit of 0.0302 Ω−1. The TCF also exhibited outstanding environmental stability, with no significant change in resistance after 50 days of aging tests. When used as a Joule heating device, it reached a maximum temperature of 110 °C under a working voltage of 2.5 V, demonstrating a fast thermal response. As an EMI shielding device, it achieved a shielding effectiveness of 27 dB in the X-band (8.2−12.4 GHz). Notably, when employed as the anode in OLED devices, the GO-AgNP/AgNW TCF enabled excellent electroluminescent performance, achieving a maximum luminance (Lmax) of 10,000 cd/m2, a maximum current efficiency (C.E.max) of 12.4 cd/A, a maximum power efficiency (P.E.max) of 5.6 lm/W, and a maximum external quantum efficiency (EQEmax) of 3.7%. This work provides a scalable approach for developing TCFs with simple fabrication processes, superior environmental stability, and multifunctionality, effectively meeting the demands of complex and dynamic application environments.
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DOI
高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
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2022
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IF 5.999
Zhi Luo,Dongmiao Qin,Yusheng Wu,Shuo Meng,Weiming Mo,Biyang Deng
A sandwich electrochemiluminescence (ECL) immunosensor based on an N-(4-aminobutyl)-N-ethylisoluminol-graphene oxide-Ag nanoparticle (ABEI-GO-AgNPs) complex and cysteine silver nanowires (AgCysNWs) was prepared to detect prostate-specific antigen (PSA). Our results showed that an ECL signal probe, ABEI-GO-AgNPs, with an ultrahigh specific surface area, favorable catalytic properties, and electrical conductivity was prepared by a one-step synthesis method. ABEI-GO-AgNPs with good biocompatibility immobilized secondary antibody (Ab 2 ) via Ag N bonds. Furthermore, AgCysNWs containing many –COOH groups were prepared and used to enrich primary antibody (Ab 1 ), which could be used as an affinity probe for the selective capture of PSA. Lastly, through layer-by-layer assembly, we established an ECL immunosensing platform for the sensitive detection of PSA. Under the optimized conditions, the designed ECL immunosensor showed promising sensitivity and selectivity for the detection of PSA in the linear range of 5.5 × 10 −7 –5.5 ng/mL, with a detection limit of 1.2 × 10 −7 ng/mL. The constructed ECL sensing platform possessed good specificity, reproducibility, and stability and could detect PSA in actual human serum samples.
研究领域:
分析化学
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生物传感器
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纳米技术
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生物医学工程
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DOI
PubMed
高影响因子
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