{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,19]],"date-time":"2026-01-19T07:33:25Z","timestamp":1768808005830,"version":"3.49.0"},"reference-count":44,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2017,6,22]],"date-time":"2017-06-22T00:00:00Z","timestamp":1498089600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012166","name":"National Basic Research Program of China","doi-asserted-by":"publisher","award":["2013CB934304"],"award-info":[{"award-number":["2013CB934304"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61673367"],"award-info":[{"award-number":["61673367"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61374017"],"award-info":[{"award-number":["61374017"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61573334"],"award-info":[{"award-number":["61573334"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["31571567"],"award-info":[{"award-number":["31571567"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>It is of great significance for dynamic monitoring of foods in storage or during the transportation process through on-line detecting trimethylamine (TMA). Here, TMA were sensitively detected by Au-modified hierarchical porous single-crystalline ZnO nanosheets (HPSCZNs)-based sensors. The HPSCZNs were synthesized through a one-pot wet-chemical method followed by an annealing treatment. Polyethyleneimine (PEI) was used to modify the surface of the HPSCZNs, and then the PEI-modified samples were mixed with Au nanoparticles (NPs) sol solution. Electrostatic interactions drive Au nanoparticles loading onto the surface of the HPSCZNs. The Au-modified HPSCZNs were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy dispersive spectrum (EDS), respectively. The results show that Au-modified HPSCZNs-based sensors exhibit a high response to TMA. The linear range is from 10 to 300 ppb; while the detection limit is 10 ppb, which is the lowest value to our knowledge.<\/jats:p>","DOI":"10.3390\/s17071478","type":"journal-article","created":{"date-parts":[[2017,6,22]],"date-time":"2017-06-22T10:11:35Z","timestamp":1498126295000},"page":"1478","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":101,"title":["Trimethylamine Sensors Based on Au-Modified Hierarchical Porous Single-Crystalline ZnO Nanosheets"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2477-1542","authenticated-orcid":false,"given":"Fanli","family":"Meng","sequence":"first","affiliation":[{"name":"College of Information Science and Engineering, Northeastern University, Shenyang 110819, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hanxiong","family":"Zheng","sequence":"additional","affiliation":[{"name":"Department of Mechanical and Automotive Engineering, Anhui Polytechnic University, Wuhu 241000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yufeng","family":"Sun","sequence":"additional","affiliation":[{"name":"Department of Mechanical and Automotive Engineering, Anhui Polytechnic University, Wuhu 241000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Minqiang","family":"Li","sequence":"additional","affiliation":[{"name":"Nanomaterials and Environment Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jinhuai","family":"Liu","sequence":"additional","affiliation":[{"name":"Nanomaterials and Environment Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2017,6,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"87","DOI":"10.1016\/j.jfoodeng.2016.11.006","article-title":"Smart sensor to predict retail fresh fish quality under ice storage","volume":"197","author":"Garcia","year":"2017","journal-title":"J. Food Eng."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"86","DOI":"10.1016\/j.tifs.2003.08.006","article-title":"Multisensor for fish quality determination","volume":"15","author":"Olafsdottir","year":"2004","journal-title":"Trends Food Sci. Tech."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1012","DOI":"10.1080\/10408398.2013.769934","article-title":"Recent Advances in Methods and Techniques for Freshness Quality Determination and Evaluation of Fish and Fish Fillets: A Review","volume":"55","author":"Cheng","year":"2015","journal-title":"Crit. Rev. Food Sci."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"399","DOI":"10.1016\/j.snb.2010.05.049","article-title":"Trimethylamine sensing properties of sensors based on MoO3 microrods","volume":"148","author":"Chu","year":"2010","journal-title":"Sens. Actuators B Chem."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"495","DOI":"10.1016\/j.snb.2012.07.094","article-title":"Punched ZnO nanobelt networks for highly sensitive gas sensors","volume":"174","author":"Na","year":"2012","journal-title":"Sens. Actuators B Chem."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"100","DOI":"10.1016\/j.aca.2012.05.044","article-title":"Parts per billion-level detection of benzene using SnO2\/graphene nanocomposite composed of sub-6 nm SnO2 nanoparticles","volume":"736","author":"Meng","year":"2012","journal-title":"Anal. Chim. Acta"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"95","DOI":"10.3390\/s40670095","article-title":"Study of influencing factors of dynamic measurements based on SnO2 gas sensor","volume":"4","author":"Sun","year":"2004","journal-title":"Sensors"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"403","DOI":"10.1016\/j.snb.2008.05.015","article-title":"Fabrication of SnO2-ZnO nanocomposite sensor for selective sensing of trimethylamine and the freshness of fishes","volume":"134","author":"Zhang","year":"2008","journal-title":"Sens. Actuators B Chem."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"237","DOI":"10.1016\/j.jiec.2011.02.012","article-title":"Characteristics of the TiO2\/SnO2 thick film semiconductor gas sensor to determine fish freshness","volume":"17","author":"Jung","year":"2011","journal-title":"J. Ind. Eng. Chem."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"463","DOI":"10.1016\/j.snb.2013.02.008","article-title":"Selective and sensitive detection of trimethylamine using ZnO-In2O3 composite nanofibers","volume":"181","author":"Lee","year":"2013","journal-title":"Sens. Actuators B Chem."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"396","DOI":"10.1016\/j.matchemphys.2010.04.028","article-title":"Trimethylamine sensing properties of CdO-Fe2O3 nano-materials prepared using co-precipitation method in the presence of PEG400","volume":"123","author":"Chu","year":"2010","journal-title":"Mater. Chem. Phys."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"12310","DOI":"10.1021\/am402532v","article-title":"Branch-like Hierarchical Heterostructure (alpha-Fe2O3\/TiO2): A Novel Sensing Material for Trimethylamine Gas Sensor","volume":"5","author":"Lou","year":"2013","journal-title":"Acs Appl. Mater. Interfaces"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"400","DOI":"10.1016\/j.jhazmat.2014.05.059","article-title":"Facile synthesis of porous single crystalline ZnO nanoplates and their application in photocatalytic reduction of Cr(VI) in the presence of phenol","volume":"276","author":"Jin","year":"2014","journal-title":"J. Hazard. Mater."},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Liu, J.Y., Guo, Z., Meng, F.L., Luo, T., Li, M.Q., and Liu, J.H. (2009). Novel porous single-crystalline ZnO nanosheets fabricated by annealing ZnS(en)0.5 (en = ethylenediamine) precursor. Application in a gas sensor for indoor air contaminant detection. Nanotechnology, 20.","DOI":"10.1088\/0957-4484\/20\/12\/125501"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"272","DOI":"10.1016\/j.jallcom.2013.05.211","article-title":"A comparative study of porous ZnO nanostructures synthesized from different zinc salts as gas sensor materials","volume":"578","author":"Song","year":"2013","journal-title":"J. Alloy. Compd."},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Woo, H.S., Na, C., Kim, I.D., and Lee, J.H. (2012). Highly sensitive and selective trimethylamine sensor using one-dimensional ZnO-Cr2O3 hetero-nanostructures. Nanotechnology, 23.","DOI":"10.1088\/0957-4484\/23\/24\/245501"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"624","DOI":"10.1016\/j.snb.2012.03.023","article-title":"Structural, morphological, electrical and vapour sensing properties of Mn doped nanostructured ZnO thin films","volume":"166","author":"Sivalingam","year":"2012","journal-title":"Sens. Actuators B Chem."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"16199","DOI":"10.1021\/jp906458b","article-title":"Au Decorated Zinc Oxide Nanowires for CO Sensing","volume":"113","author":"Joshi","year":"2009","journal-title":"J. Phys. Chem C"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"6652","DOI":"10.3390\/s90906652","article-title":"Sensing Characteristics of Flame-Spray-Made Pt\/ZnO Thick Films as H2 Gas Sensor","volume":"9","author":"Tamaekong","year":"2009","journal-title":"Sensors"},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Simon, Q., Barreca, D., Gasparotto, A., Maccato, C., Tondello, E., Sada, C., Comini, E., Devi, A., and Fischer, R.A. (2012). Ag\/ZnO nanomaterials as high performance sensors for flammable and toxic gases. Nanotechnology, 23.","DOI":"10.1088\/0957-4484\/23\/2\/025502"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"719","DOI":"10.1039\/C1CE06041D","article-title":"Photochemical deposition of Ag nanocrystals on hierarchical ZnO microspheres and their enhanced gas-sensing properties","volume":"14","author":"Zhu","year":"2012","journal-title":"Crystengcomm"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"37","DOI":"10.1016\/j.trac.2015.02.008","article-title":"Graphene-based hybrids for chemiresistive gas sensors","volume":"68","author":"Meng","year":"2015","journal-title":"TrAC Trends Anal. Chem."},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Kim, S.S., Park, J.Y., Choi, S.W., Kim, H.S., Na, H.G., Yang, J.C., and Kim, H.W. (2010). Significant enhancement of the sensing characteristics of In2O3 nanowires by functionalization with Pt nanoparticles. Nanotechnology, 21.","DOI":"10.1088\/0957-4484\/21\/41\/415502"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"975","DOI":"10.1016\/j.snb.2014.12.078","article-title":"Ag-decorated ultra-thin porous single-crystalline ZnO nanosheets prepared by sunlight induced solvent reduction and their highly sensitive detection of ethanol","volume":"209","author":"Meng","year":"2015","journal-title":"Sens. Actuators B Chem."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"209","DOI":"10.1016\/j.snb.2015.04.132","article-title":"Sub-ppb detection of acetone using Au-modified flower-like hierarchical ZnO structures","volume":"219","author":"Meng","year":"2015","journal-title":"Sens. Actuators B Chem."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"96","DOI":"10.1016\/j.sna.2016.11.004","article-title":"Chlorobenzene sensor based on Pt-decorated porous single-crystalline ZnO nanosheets","volume":"252","author":"Gu","year":"2016","journal-title":"Sens. Actuators A Phys."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"645","DOI":"10.1016\/j.jallcom.2015.01.289","article-title":"Interlaced nanoflake-assembled flower-like hierarchical ZnO microspheres prepared by bisolvents and their sensing properties to ethanol","volume":"632","author":"Meng","year":"2015","journal-title":"J. Alloy Compd."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"124","DOI":"10.1016\/j.jallcom.2014.11.175","article-title":"Flower-like hierarchical structures consisting of porous single-crystalline ZnO nanosheets and their gas sensing properties to volatile organic compounds (VOCs)","volume":"626","author":"Meng","year":"2015","journal-title":"J. Alloy Compd."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"3668","DOI":"10.1109\/JSEN.2015.2396893","article-title":"New Strategy for Rapid Detection of the Simulants of Persistent Organic Pollutants Using Gas Sensor Based on 3-D Porous Single-Crystalline ZnO Nanosheets","volume":"15","author":"Hou","year":"2015","journal-title":"IEEE Sens. J."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"20","DOI":"10.1038\/physci241020a0","article-title":"Controlled Nucleation for the Regulation of the Particle Size in Monodisperse Gold Suspensions","volume":"241","author":"Frens","year":"1973","journal-title":"Nat. Phys. Sci."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"203","DOI":"10.1016\/j.snb.2016.03.111","article-title":"Estimation of multicomponent organic solvent vapor mixture composition with electroconducting polymer chemiresistors","volume":"232","author":"Pavluchenko","year":"2016","journal-title":"Sens. Actuators B Chem."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"130","DOI":"10.1016\/j.snb.2016.04.042","article-title":"Gas-sensing properties of In-Sn oxides composites synthesized by hydrothermal method","volume":"234","author":"Wang","year":"2016","journal-title":"Sens. Actuators B Chem."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"75","DOI":"10.1016\/S0925-4005(97)00324-9","article-title":"Zinc oxide thin film doped with Al2O3, TiO2 and V2O5 as sensitive sensor for trimethylamine gas","volume":"46","author":"Kwon","year":"1998","journal-title":"Sens. Actuators B Chem."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"8445","DOI":"10.3390\/s130708445","article-title":"Self-Assembled 3D ZnO Porous Structures with Exposed Reactive {0001} Facets and Their Enhanced Gas Sensitivity","volume":"13","author":"Chang","year":"2013","journal-title":"Sensors"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"143","DOI":"10.1023\/A:1014405811371","article-title":"Conduction model of metal oxide gas sensors","volume":"7","author":"Barsan","year":"2001","journal-title":"J. Electroceram."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"339","DOI":"10.1016\/j.snb.2014.04.010","article-title":"High-performance gas sensor based on ZnO nanowires functionalized by Au nanoparticles","volume":"199","author":"Guo","year":"2014","journal-title":"Sens. Actuators B Chem."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"84","DOI":"10.1039\/C3NJ00776F","article-title":"Fabrication of flower-like ZnO nanosheet and nanorod-assembled hierarchical structures and their enhanced performance in gas sensors","volume":"38","author":"Luo","year":"2014","journal-title":"New J. Chem."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"499","DOI":"10.1016\/j.snb.2008.10.043","article-title":"Hierarchically porous ZnO with high sensitivity and selectivity to H(2)S derived from biotemplates","volume":"136","author":"Liu","year":"2009","journal-title":"Sens. Actuators B Chem."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"519","DOI":"10.1016\/j.snb.2012.02.098","article-title":"Synthesis and gas sensing properties of hierarchical meso-macroporous SnO2 for detection of indoor air pollutants","volume":"166","author":"Li","year":"2012","journal-title":"Sens. Actuators B Chem."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"226","DOI":"10.1016\/S0925-4005(03)00529-X","article-title":"Formulation of gas diffusion dynamics for thin film semiconductor gas sensor based on simple reaction-diffusion equation","volume":"96","author":"Matsunaga","year":"2003","journal-title":"Sens. Actuators B Chem."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"125","DOI":"10.1016\/S0925-4005(01)00890-5","article-title":"Theory of gas-diffusion controlled sensitivity for thin film semiconductor gas sensor","volume":"80","author":"Sakai","year":"2001","journal-title":"Sens. Actuators B Chem."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"344","DOI":"10.1016\/j.cattod.2005.03.069","article-title":"Gas phase transport, adsorption and surface diffusion in a porous glass membrane","volume":"104","author":"Yang","year":"2005","journal-title":"Catal. Today"},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.mser.2008.02.001","article-title":"The role of morphology and crystallographic structure of metal oxides in response of conductometric-type gas sensors","volume":"61","author":"Korotcenkov","year":"2008","journal-title":"Mat. Sci. Eng. R"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"6308","DOI":"10.1039\/C5CE01162K","article-title":"The effect of noble metal (Au, Pd and Pt) nanoparticles on the gas sensing performance of SnO2-based sensors: A case study on the {221} high-index faceted SnO2 octahedra","volume":"17","author":"Liu","year":"2015","journal-title":"CrystEngComm"}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/17\/7\/1478\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T18:40:03Z","timestamp":1760208003000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/17\/7\/1478"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,6,22]]},"references-count":44,"journal-issue":{"issue":"7","published-online":{"date-parts":[[2017,7]]}},"alternative-id":["s17071478"],"URL":"https:\/\/doi.org\/10.3390\/s17071478","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,6,22]]}}}