海洋所開發(fā)基于海洋能量自驅(qū)動(dòng)的微生物腐蝕防護(hù)及傳感新技術(shù)
據(jù)估算,2021年我國(guó)因海洋腐蝕造成的經(jīng)濟(jì)損失超過10000億元人民幣,其中,生物腐蝕占總海洋腐蝕損失的20%左右。海洋微生物腐蝕預(yù)警及防護(hù)技術(shù)開發(fā)對(duì)海洋工程運(yùn)行來(lái)說(shuō)至關(guān)重要。如何快速獲得環(huán)境微生物種類等信息,以及如何利用環(huán)境能量驅(qū)動(dòng)微生物防護(hù)技術(shù)是亟待解決的問題。
研究團(tuán)隊(duì)基于摩擦納米產(chǎn)電原理,優(yōu)化設(shè)計(jì)了軟接觸式等多種摩擦納米發(fā)電機(jī)模型,可將人體、海洋環(huán)境的能量轉(zhuǎn)化電能。在此基礎(chǔ)上,將產(chǎn)生的電能作為傳感信號(hào)源,利用萬(wàn)古霉素對(duì)微生物細(xì)胞壁的特異結(jié)合特性識(shí)別并捕獲微生物,利用胍基官能團(tuán)功能化的多壁碳納米管被作為信號(hào)放大材料,通過測(cè)量生物傳感器的電壓變化,實(shí)現(xiàn)快速地、特異性地檢測(cè)溶液中的微生物(圖1)。另外,通過結(jié)構(gòu)設(shè)計(jì)與優(yōu)化,提高了摩擦納米發(fā)電機(jī)的輸出電壓,獲得電能輸出效率遠(yuǎn)超目前文獻(xiàn)報(bào)道的摩擦納米發(fā)電機(jī)模型,并將該技術(shù)與尖端擊穿放電、紫外殺菌技術(shù)結(jié)合,實(shí)現(xiàn)了自驅(qū)動(dòng)高效新型滅菌技術(shù)開發(fā)(圖2)。

圖1. 摩擦納米發(fā)電機(jī)驅(qū)動(dòng)的生物傳感系統(tǒng)的制備和檢測(cè)示意圖

圖2. 基于環(huán)境能量轉(zhuǎn)化的微生物腐蝕控制技術(shù)示意圖.
論文信息:
1.Changyang Li, Hengyu Guo, Zhiyi Wu, Peng Wang*, Dun Zhang, Yihan Sun, Self-Healable Triboelectric Nanogenerators: Marriage between Self-Healing Polymer Chemistry and Triboelectric Devices, Advanced Functional Materials, 2022, 220832
2.Congyu Wang, Peng Wang*, Junhuan Chen , Liyang Zhu , Dun Zhang , Yi Wan , Shiyun Ai,Self-powered biosensing system driven by triboelectric nanogenerator for specific detection of Gram-positive bacteria,Nano Energy, 2022,93,106828
3.Zhou Zhou , Peng Wang*, Jiawei Li, Congyu Wang, Junhuan Chen, Liyang Zhu, Haitao Zhu, Dun Zhang, A self-powered microbiosensor system for specific bacteria detection based on triboelectric nanogenerator, Nano Energy, 2022,98,107317
4.Junhuan Chen, Xuelian Wei, Baocheng Wang, Ruonan Li, Yanggui Sun, Yating Peng, Zhiyi Wu*, Peng Wang*, Zhong Lin Wang*, Design Optimization of Soft-Contact Freestanding Rotary Triboelectric Nanogenerator for High-Output Performance, Advanced Energy Materials,2021,11, 2102106.
5.Junhuan Chen, Peng Wang*, Jiawei Li, Congyu Wang, Junlei Wang, Dun Zhang, Yating Peng, Baocheng Wang, ZhiyiWu*, Self-Powered Antifouling UVC Pipeline Sterilizer Driven by the Discharge Stimuli Based on the Modified Freestanding Rotary Triboelectric Nanogenerator, Nano Energy,2022, 95, 106969.
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