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Article ; Online: Design and Preparation of Ethylene Fluorescence Probes Based on Arylolefins and Grubbs Catalysts.

Yang, Yanyan / Bian, Hongxia / Jia, Zhilong / Tu, Peng

ACS omega

2023 Volume 8, Issue 17, Page(s) 15350–15359

Abstract: To detect the plant hormone ethylene, three arylolefins were employed to react with ethylene based on olefin metathesis. In this study, three fluorescence probes were successfully prepared using a first-generation Grubbs catalyst (G-1) and arylolefin ... ...

Abstract	To detect the plant hormone ethylene, three arylolefins were employed to react with ethylene based on olefin metathesis. In this study, three fluorescence probes were successfully prepared using a first-generation Grubbs catalyst (G-1) and arylolefin with terminal vinyl groups. The probes were characterized using various techniques, including UV-vis, fluorescence, FT-IR,
Language	English
Publishing date	2023-04-20
Publishing country	United States
Document type	Journal Article
ISSN	2470-1343
ISSN (online)	2470-1343
DOI	10.1021/acsomega.3c00586
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Influence of Electrode Structure on Performance of Laser Direct Writing Cu-PI Flexible Humidity Sensor.

Zhao, Jipeng / Yu, Zixiao / Tu, Zhenyue / Bian, Hongxia

Micromachines

2022 Volume 13, Issue 7

Abstract: Electrode structure is an essential factor affecting the performance of flexible humidity sensors. In this study, Cu and Cu2 + 1O electrodes were printed by the one-step method using laser direct writing technology to reduce the nano-CuO ink on flexible ... ...

Abstract	Electrode structure is an essential factor affecting the performance of flexible humidity sensors. In this study, Cu and Cu2 + 1O electrodes were printed by the one-step method using laser direct writing technology to reduce the nano-CuO ink on flexible substrate PI and to be used for a humidity sensor. The resistance of the humidity sensors with nine various electrode structures was measured under the relative humidity (RH) of 16-78%. It was observed that all sensors showed good humidity sensing characteristics, and the sensitivity of the copper-based humidity sensor was not affected by the electrode structure under low humidity conditions but was significant under high humidity conditions. The sensor with the length of 1960 μm and the width of 120 μm shows the lowest sensitivity of 180.2 KΩ/%RH under 35% RH, and the sensor with the length of 2430 μm and the width of 180 μm shows the highest sensitivity of 1744 kΩ/%RH under 65% RH. It is expected that the results can provide an assessment of the performance improvement of the flexible humidity sensor and a reference for the research and development of intelligent wearable devices.
Language	English
Publishing date	2022-06-24
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2620864-7
ISSN	2072-666X
ISSN	2072-666X
DOI	10.3390/mi13070992
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Value-Added Utilization of Wheat Straw: From Cellulose and Cellulose Nanofiber to All-Cellulose Nanocomposite Film.

Bian, Hongxia / Yang, Yanyan / Tu, Peng / Chen, Jonathan Y

Membranes

2022 Volume 12, Issue 5

Abstract: To accelerate the high value-added usage of agricultural residue, cellulose and cellulose nanofibers (CNFs) were extracted from wheat straw and then formed into all-cellulose nanocomposite films. The acid-alkali method (AM) and the extraction method (EM) ...

Abstract	To accelerate the high value-added usage of agricultural residue, cellulose and cellulose nanofibers (CNFs) were extracted from wheat straw and then formed into all-cellulose nanocomposite films. The acid-alkali method (AM) and the extraction method (EM) were respectively adopted to prepare wheat straw cellulose (WSC), and the TEMPO oxidation method was used to extract CNFs. The nanocomposite films were fabricated by dissolving WSC and adding different CNF contents of 0.0, 0.5, 1.5, and 3.0%. There was a better miscibility for the all-cellulose nanocomposite film prepared by EM (Composite-E) compared to that for the all-cellulose nanocomposite film prepared by AM (Composite-A). Composite-E also showed a better optical transparency than Composite-A. The thermal stability of the two RWSCs presented contrary results when the CNFs were added, indicating a higher thermal stability for Composite-E than for Composite-A. This should have determined the properties of the films in which Cellulose I and Cellulose II coexisted for the all-cellulose nanocomposite films, and the forming mechanism of Cellulose II and crystallinity were determined by the cellulose-extracting method. X-ray diffraction (XRD) and Fourier-transform infrared (FT-IR) spectroscopy also showed that there was more Cellulose I in Composite-E than in Composite-A. The results are expected to enrich the data for deep processing of agricultural residues.
Language	English
Publishing date	2022-04-28
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2614641-1
ISSN	2077-0375
ISSN	2077-0375
DOI	10.3390/membranes12050475
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Fabrication of all-cellulose nanocomposites from corn stalk.

Bian, Hongxia / Tu, Peng / Chen, Jonathan Y

Journal of the science of food and agriculture

2020 Volume 100, Issue 12, Page(s) 4390–4399

Abstract: Background: There is a need to help farmers and industries develop value-added composite and nanocomposite materials from agricultural residuals. Cellulose nanofibers (CNFs) were made using a TEMPO oxidation method and celluloses were prepared by acid- ... ...

Abstract	Background: There is a need to help farmers and industries develop value-added composite and nanocomposite materials from agricultural residuals. Cellulose nanofibers (CNFs) were made using a TEMPO oxidation method and celluloses were prepared by acid-base method and extracting method, which were all from corn stalk, an agricultural residual. The prepared celluloses were dissolved separately in dimethylacetamide/LiCl solvent and CNFs were added at 0.0%, 0.5%, 1.5% and 3.0% to form all-cellulose nanocomposites, and then cast into films. Morphology, structure and properties of the nanocomposite films were characterized using atomic force microscopy, field emission scanning electron microscopy, thermogravimetric analysis, X-ray diffraction and mechanical testing. Results: The all-cellulose nanocomposite films with different cellulose matrices exhibited good optical transparency and layer structure. The all-cellulose nanocomposite films with cellulose prepared by the extracting method (Composite E) exhibited a higher crystallinity, better thermal stability and higher mechanical strength compared to the all-cellulose nanocomposite films with cellulose prepared by the acid-base method (Composite A). Conclusions: The crystal structure of the all-cellulose nanocomposite films indicated the coexistence of cellulose I and cellulose II. However, in contrast to Composite A, the diffraction intensity of cellulose I in Composite E was higher than that of cellulose II. This was another reason that the mechanical properties of Composite E were superior to those of Composite A. In addition, the mechanical properties of the all-cellulose nanocomposite films were significantly different when the addition of CNFs reached 3.0% by weight, as indicated by a multiple-range comparison. © 2020 Society of Chemical Industry.
MeSH term(s)	Cellulose/chemistry ; Microscopy, Atomic Force ; Nanocomposites/chemistry ; Plant Extracts/chemistry ; Plant Stems/chemistry ; Tensile Strength ; X-Ray Diffraction ; Zea mays/chemistry
Chemical Substances	Plant Extracts ; Cellulose (9004-34-6)
Keywords	covid19
Language	English
Publishing date	2020-06-22
Publishing country	England
Document type	Journal Article
ZDB-ID	184116-6
ISSN	1097-0010 ; 0022-5142
ISSN (online)	1097-0010
ISSN	0022-5142
DOI	10.1002/jsfa.10476
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Article: Determination of physicochemical quality of bruised apple using dielectric properties

Bian, Hongxia / Shi, Ping / Tu, Peng

Journal of food measurement & characterization. 2020 Oct., v. 14, no. 5

2020

Abstract: In this study, apples were damaged by dropping from different heights(40、60、80、100 and 120 cm) to the marble ground and stored at 1 °C and then the quality and dielectric parameters of the apples were measured after different storage durations (1、5、9、13、 ... ...

Abstract	In this study, apples were damaged by dropping from different heights(40、60、80、100 and 120 cm) to the marble ground and stored at 1 °C and then the quality and dielectric parameters of the apples were measured after different storage durations (1、5、9、13、17、21 and 25 d). The results showed that the firmness, density, titratable acidity (TA), vitamin C and moisture content decreased, the browning degree and total soluble solid/titratable acidity(TSS/TA) increased, the total soluble solid (TSS) exhibited a increasing–decreasing trend with the storage time increased. The higher the drop height of the apples, the lower the firmness, density, TSS, TA, vitamin C and moisture content and the greater the browning degree and TSS/TA. A principal component analysis showed that two principle components could represent the dielectric parameters of the damaged fruit, and the accumulated variance contribution rate was more than 80%. At the characteristic frequency, which was selected using a gray correlation analysis, the principle components predicted the quality parameters and established the prediction models for quality parameters. The determination coefficients of prediction equation about density, TSS, TA, vitamin C and moisture content were all greater than 0.6, it was indicated that the prediction results of these quality parameters were better. The results are expected to provide a reference for the rapid evaluation of quality changes for damaged fruit by using electrical properties.
Keywords	apples ; ascorbic acid ; equations ; firmness ; fruits ; measurement ; prediction ; principal component analysis ; storage time ; titratable acidity ; total soluble solids ; variance ; water content
Language	English
Dates of publication	2020-10
Size	p. 2590-2599.
Publishing place	Springer US
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	2754612-3
ISSN	2193-4134 ; 2193-4126
ISSN (online)	2193-4134
ISSN	2193-4126
DOI	10.1007/s11694-020-00505-1
Database	NAL-Catalogue (AGRICOLA)

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Article: Fabrication of all‐cellulose nanocomposites from corn stalk

Bian, Hongxia / Tu, Peng / Chen, Jonathan Y

Journal of the science of food and agriculture. 2020 Sept., v. 100, no. 12

2020

Abstract: BACKGROUND: There is a need to help farmers and industries develop value‐added composite and nanocomposite materials from agricultural residuals. Cellulose nanofibers (CNFs) were made using a TEMPO oxidation method and celluloses were prepared by acid– ... ...

Abstract	BACKGROUND: There is a need to help farmers and industries develop value‐added composite and nanocomposite materials from agricultural residuals. Cellulose nanofibers (CNFs) were made using a TEMPO oxidation method and celluloses were prepared by acid–base method and extracting method, which were all from corn stalk, an agricultural residual. The prepared celluloses were dissolved separately in dimethylacetamide/LiCl solvent and CNFs were added at 0.0%, 0.5%, 1.5% and 3.0% to form all‐cellulose nanocomposites, and then cast into films. Morphology, structure and properties of the nanocomposite films were characterized using atomic force microscopy, field emission scanning electron microscopy, thermogravimetric analysis, X‐ray diffraction and mechanical testing. RESULTS: The all‐cellulose nanocomposite films with different cellulose matrices exhibited good optical transparency and layer structure. The all‐cellulose nanocomposite films with cellulose prepared by the extracting method (Composite E) exhibited a higher crystallinity, better thermal stability and higher mechanical strength compared to the all‐cellulose nanocomposite films with cellulose prepared by the acid–base method (Composite A). CONCLUSIONS: The crystal structure of the all‐cellulose nanocomposite films indicated the coexistence of cellulose I and cellulose II. However, in contrast to Composite A, the diffraction intensity of cellulose I in Composite E was higher than that of cellulose II. This was another reason that the mechanical properties of Composite E were superior to those of Composite A. In addition, the mechanical properties of the all‐cellulose nanocomposite films were significantly different when the addition of CNFs reached 3.0% by weight, as indicated by a multiple‐range comparison. © 2020 Society of Chemical Industry
Keywords	X-ray diffraction ; agriculture ; atomic force microscopy ; cellulose ; cellulose nanofibers ; corn stover ; crystal structure ; nanocomposites ; oxidation ; solvents ; strength (mechanics) ; thermal stability ; thermogravimetry ; value added
Language	English
Dates of publication	2020-09
Size	p. 4390-4399.
Publishing place	John Wiley & Sons, Ltd.
Document type	Article
Note	NAL-AP-2-clean ; JOURNAL ARTICLE
ZDB-ID	184116-6
ISSN	1097-0010 ; 0022-5142
ISSN (online)	1097-0010
ISSN	0022-5142
DOI	10.1002/jsfa.10476
Database	NAL-Catalogue (AGRICOLA)

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Article: Fabrication of All-Cellulose Nanocomposites from Corn Stalk

Bian, Hongxia / Tu, Peng / Chen, Jonathan Y

J. sci. food agric

Abstract: BACKGROUND: In order to help farmers and industries develop value-added composite and nano materials from agricultural residuals. Cellulose nanofibers (CNFs) were made by using a TEMPO oxidation method and celluloses were prepared by acid-base method and ...

Abstract	BACKGROUND: In order to help farmers and industries develop value-added composite and nano materials from agricultural residuals. Cellulose nanofibers (CNFs) were made by using a TEMPO oxidation method and celluloses were prepared by acid-base method and extracting method, which were all from corn stalk, an agricultural residual. The prepared celluloses were dissolved separately in DMAc/LiCl solvent and added CNFs of 0.0, 0.5, 1.5 and 3.0% to form all-cellulose nanocomposite, and then casted into films. Morphology, structure and properties of the nanocomposite films were characterized by atomic force microscopy (AFM), field emission scanning electron microscope (FE-SEM), thermogravimetry analysis (TGA), X-ray diffraction (XRD), and mechanical testing. RESULTS: The all-cellulose nanocomposite films with different cellulose cellulose matrix exhibited a good optical transparency and layer structure. The all-cellulose nanocomposites films with the cellulose prepared by the extracting method (Composite E) exhibited a higher crystallinity, better thermal stability and higher mechanical strength than those of the all-cellulose nanocomposites films with the cellulose prepared by the acid-base method (Composite A). CONCLUSION: Crystal structure of the all-cellulose nanocomposite films all presented a co-existence of Cellulose I and Cellulose II. However, on the contrary to Composite A, the diffraction intensity of Cellulose I in Composite E was higher than that of Cellulose II. This was another reason that the mechanical properties of Composite E were superior to Composite A. In addition, the mechanical properties of the all-cellulose nanocomposites films were significantly different when the addition of CNF reached 3.0% in weight, as indicated by a multiple-range comparison. This article is protected by copyright. All rights reserved.
Keywords	covid19
Publisher	WHO
Document type	Article
Note	WHO #Covidence: #32388869
Database	COVID19

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Article: Efficiency analysis by mfERG and OCT of intravitreal injection with ranibizumab on diabetic macular edema.

Bian, Hong-Xia / Bian, Meng-Ting / Liu, Wei-Hong / Liu, Rui-Ying / Guo, Mi

International journal of ophthalmology

2020 Volume 13, Issue 7, Page(s) 1092–1096

Abstract: Aim: To analyze the clinical efficacy of intravitreal injection of ranibizumab (IVR) on diabetic macular edema (DME) with multifocal electroretinography (mfERG) and optical coherence tomography (OCT).: Methods: A total of 41 patients (41 eyes) with ... ...

Abstract	Aim: To analyze the clinical efficacy of intravitreal injection of ranibizumab (IVR) on diabetic macular edema (DME) with multifocal electroretinography (mfERG) and optical coherence tomography (OCT). Methods: A total of 41 patients (41 eyes) with DME were treated with IVR. The best corrected visual acuity (BCVA), mfERG results, and OCT were analyzed to compare to the baselines at 1wk, 1, and 3mo after operation. Results: The BCVA was significantly improved in all eyes at each time point ( Conclusion: OCT and mfERG fully demonstrate the importance of IVR for DME patients from the macular morphology and function, especially the significance of mfERG in this disease.
Language	English
Publishing date	2020-07-18
Publishing country	China
Document type	Journal Article
ZDB-ID	2663246-9
ISSN	2227-4898 ; 2222-3959
ISSN (online)	2227-4898
ISSN	2222-3959
DOI	10.18240/ijo.2020.07.12
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Quality predictions for bruised apples based on dielectric properties

Bian, Hong‐xia / Tu, Peng / Hua‐li, Xue / Shi, Ping

Journal of food processing and preservation. 2019 Aug., v. 43, no. 8

2019

Abstract: The quality of an apple is influenced by static pressures during transport and storage. In this study, apples were subjected to different static pressures using a universal testing machine, and then the quality and dielectric parameters of the apples ... ...

Abstract	The quality of an apple is influenced by static pressures during transport and storage. In this study, apples were subjected to different static pressures using a universal testing machine, and then the quality and dielectric parameters of the apples were measured after different storage durations (22 ± 1°C, 35–40% relative humidity). The results showed that the firmness and vitamin C content decreased and the total soluble solid (TSS) content, titratable acidity (TA), and total soluble solid/titratable acidity (TSS/TA) exhibited a decreasing–increasing–decreasing trend as the storage time increased. A principal component analysis (PCA) showed that two principle components could represent the dielectric parameters of the damaged fruit. At the characteristic frequency, which was selected using a gray correlation analysis, the principle components predicted the quality parameters and established a prediction model for the firmness, TSS content, and TSS/TA. The results are expected to provide a rapid evaluation method for damaged fruit using dielectric properties. PRACTICAL APPLICATIONS: Mechanical damage to apples is often caused by external forces during harvesting, storage, and transport. During storage, injured fruits are infected easily by fungi and ultimately cause decay. In addition, rotten fruits and healthy fruits are stored together, which also leads to cross‐infection and causes large economic losses. Therefore, a simple and practical technique to detect and evaluate the quality of damaged fruits is urgent. In this study, we conducted a study to measure the quality and dielectric parameters of apples that were subjected to different static pressures and found that two principle components could represent the dielectric parameters of the damaged fruit by PCA. At the characteristic frequency, which was selected using a gray correlation analysis, the principle components predicted the quality parameters and established a prediction model for the firmness, TSS content, and TSS/TA. The results are expected to provide a rapid evaluation method for damaged fruit using dielectric properties.
Keywords	apples ; ascorbic acid ; cross infection ; dielectric properties ; financial economics ; firmness ; fruits ; fungi ; harvesting ; mechanical damage ; prediction ; principal component analysis ; relative humidity ; static pressure ; storage time ; titratable acidity ; total soluble solids
Language	English
Dates of publication	2019-08
Publishing place	John Wiley & Sons, Ltd
Document type	Article
Note	JOURNAL ARTICLE
ZDB-ID	243448-9
ISSN	1745-4549 ; 0145-8892
ISSN (online)	1745-4549
ISSN	0145-8892
DOI	10.1111/jfpp.14006
Database	NAL-Catalogue (AGRICOLA)

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