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Zhang L, Chen F, Wang H, He J, Luo M, Chen H, Zhong C. Starch microsphere silicon-boron crosslinker for low concentration hydroxypropyl guar gum based fracturing fluid. Int J Biol Macromol 2024; 264:130575. [PMID: 38432270 DOI: 10.1016/j.ijbiomac.2024.130575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 02/17/2024] [Accepted: 02/29/2024] [Indexed: 03/05/2024]
Abstract
Hydroxypropyl guar gum (HPG) is a critical thickener to increase viscosity and lubrication to improve the water-based hydraulic fracturing efficiency. However, current crosslinkers require a large amount of HPG (>0.3 wt%) to form gel with sufficient viscosity, and high concentrations of HPG may cause adverse effects to the production and the environment. In this study, a novel starch microsphere silica‑boron crosslinker (SMSB) was developed using starch microspheres as a carrier and γ-aminopropyl triethoxy silane (KH550) as a modifier with an in-house method. Both the rheology and surface reactions of the SMSB-HPG crosslinking system were studied using multiple laboratory experiments and molecular dynamics simulation. The results showed that SMSB crosslinker caused multi-site cross-linking with low concentration (only 0.2 wt%) of HPG molecules, reducing the twisting of single molecular chain in the crosslinking system, enhancing the cross-linking strength between molecular chains, and making HPG molecular chains stretcher in the aqueous solution. The apparent viscosity and viscoelasticity of the HPG system were substantially higher than the organoboron crosslinker, and the temperature resistance of the SMSB-HPG crosslinking system was up to 140 °C. This study provides an alternative green crosslinker for more sustainable industrial applications and provides theoretical basis for the modification of biomaterials.
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Affiliation(s)
- Lin Zhang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Fu Chen
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China; Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu, Sichuan 610500, China
| | - Heng Wang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Jie He
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Mina Luo
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Hao Chen
- CNPC Greatwall Drilling Company Sichuan Shale Gas Department, Chengdu, Sichuan 610051, China
| | - Cheng Zhong
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China; Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu, Sichuan 610500, China.
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2
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Song Y, Zhang F, Yu R, Zheng H, Wang P. Acylated pectin/gelatin-based films incorporated with alkylated starch crystals: Characterization, antioxidant and antibacterial activities, and coating preservation effects on golden pomfret. Int J Biol Macromol 2023; 241:124532. [PMID: 37085070 DOI: 10.1016/j.ijbiomac.2023.124532] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 04/11/2023] [Accepted: 04/16/2023] [Indexed: 04/23/2023]
Abstract
Pectin and starch crystals were modified by ethyl gallate and octadecyl-trimethoxysilane, respectively, followed by using acylated pectin (AP) and alkylated starch crystals (ASCs) as bioactive reagents and hydrophobic enhancers to improve the physiochemical properties of gelatin-based films and evaluate their coating preservation effects on golden pomfret. The properties of AP and ASC were investigated by Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV-vis), proton-nuclear magnetic resonance (1H NMR) and X-ray diffraction (XRD). The ethyl-gallate-modified pectin/gelatin (AP/G) containing 3 % ASC (AP/G/ASC-3 %) was shown to have the maximum tensile strength and Young's modulus of all the tested composite films. The AP/G containing 10 % ASC exhibited a water contact angle higher than 94°, coupled with a significant improvement in UV-shielding efficiency. FTIR and SEM analysis of the AP/G/ASC-3 % film indicated that the molecular interactions in the composite film components were noncovalent linkages, including hydrogen bonds, hydrophobic interactions, and electrostatic interactions, contributing to homogeneous and smooth microstructures. Additionally, the solutions of AP/G and AP/G/ASC composite films presented obvious antioxidant and antibacterial activities against Escherichia coli and Staphylococcus aureus. Furthermore, the AP/G and AP/G/ASC active coatings could effectively inhibit lipid oxidation and improve the textural acceptability of golden pomfret (Trachinotus blochii) fillets during 4 °C storage.
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Affiliation(s)
- Ya Song
- Department of Food Science and Engineering, Moutai Institute, Luban Street, Ren huai 564502, Guizhou, PR China; Guizhou Health Wine Brewing Engineering Research Center, LuBan Street, RenHai 564502, Guizhou, PR China
| | - Feng Zhang
- Department of Food Science and Engineering, Moutai Institute, Luban Street, Ren huai 564502, Guizhou, PR China; Guizhou Health Wine Brewing Engineering Research Center, LuBan Street, RenHai 564502, Guizhou, PR China
| | - Ruishi Yu
- Department of Food Science and Engineering, Moutai Institute, Luban Street, Ren huai 564502, Guizhou, PR China; Guizhou Health Wine Brewing Engineering Research Center, LuBan Street, RenHai 564502, Guizhou, PR China
| | - Huayan Zheng
- Department of Food Science and Engineering, Moutai Institute, Luban Street, Ren huai 564502, Guizhou, PR China; Guizhou Health Wine Brewing Engineering Research Center, LuBan Street, RenHai 564502, Guizhou, PR China
| | - Pengkai Wang
- College of Food Science and Technology, Guangdong Ocean University, PR China.
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3
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Wang H, Liu X, Liu J, Wu M, Huang Y. Facile dispersion strategy to prepare polylactic acid/reed straw nanofiber composites with enhanced mechanical and thermal properties. Int J Biol Macromol 2022; 221:278-287. [PMID: 36030979 DOI: 10.1016/j.ijbiomac.2022.08.121] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/16/2022] [Accepted: 08/17/2022] [Indexed: 11/26/2022]
Abstract
The challenge of dispersing nanocellulose in hydrophobic polymers such as polylactic acid (PLA) still obstacles the further application of cellulose nanocomposites. An environment-friendly and facile wet-shearing pretreatment strategy without using any organic solvent was developed in this work. Silane modified lignocellulose nanofiber (SLCNF) was pre-dispersed into PLA by wet-shearing pretreatment, followed by extrusion process and the SLCNF could be dispersed extremely well in PLA matrices. SLCNF formed a crosslinked network and had an improved compatibility, which improved the mechanical and thermal properties of PLA composites. The tensile strength, elongation at break and thermal deformation temperature of the composites were increased by 12.6 %, 32.4 % and 9.1 °C, respectively. Moreover, SLCNF promoted the crystallization of PLA as a heterogeneous nucleating agent and the crystallinity was increased by about 40 %. This study provides an effective way to disperse nanocellulose in polymer matrix with high efficiency to enhance polymer-based composites.
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Affiliation(s)
- Hongkun Wang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Xuran Liu
- College of Material Engineering, North China Institute of Aerospace Engineering, Langfang 065000, China.
| | - Jinfeng Liu
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Min Wu
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yong Huang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
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4
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Chen Q, You N, Zhao Y, Liang C, Liu Z, Zhao W. Polyethyleneimine grafted H
2
O
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‐oxidized starch nanocrystals as a biomaterial for adsorptive removal of Cr(VI). STARCH-STARKE 2022. [DOI: 10.1002/star.202200129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- QiJie Chen
- Contact information: School of Chemistry and Chemical Engineering Changsha University of Science and Technology Changsha Hunan Province 410114 People's Republic of China
| | - Na You
- Contact information: School of Chemistry and Chemical Engineering Changsha University of Science and Technology Changsha Hunan Province 410114 People's Republic of China
| | - YaLan Zhao
- Contact information: School of Chemistry and Chemical Engineering Changsha University of Science and Technology Changsha Hunan Province 410114 People's Republic of China
| | - ChunYan Liang
- Contact information: School of Chemistry and Chemical Engineering Changsha University of Science and Technology Changsha Hunan Province 410114 People's Republic of China
| | - Zhuo Liu
- Contact information: School of Chemistry and Chemical Engineering Changsha University of Science and Technology Changsha Hunan Province 410114 People's Republic of China
| | - WenGuang Zhao
- Contact information: School of Chemistry and Chemical Engineering Changsha University of Science and Technology Changsha Hunan Province 410114 People's Republic of China
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5
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Domingues O, Remonatto D, dos Santos LK, Galán JPM, Flumignan DL, de Paula AV. Evaluation of Candida rugosa Lipase Immobilized on Magnetic Nanoparticles in Enzymatic/Chemical Hydroesterification for Biodiesel Production. Appl Biochem Biotechnol 2022; 194:5419-5442. [DOI: 10.1007/s12010-022-04046-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/24/2022] [Indexed: 11/02/2022]
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6
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Broad-Spectrum Theranostics and Biomedical Application of Functionalized Nanomaterials. Polymers (Basel) 2022; 14:polym14061221. [PMID: 35335551 PMCID: PMC8956086 DOI: 10.3390/polym14061221] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/06/2022] [Accepted: 03/15/2022] [Indexed: 12/13/2022] Open
Abstract
Nanotechnology is an important branch of science in therapies known as “nanomedicine” and is the junction of various fields such as material science, chemistry, biology, physics, and optics. Nanomaterials are in the range between 1 and 100 nm in size and provide a large surface area to volume ratio; thus, they can be used for various diseases, including cardiovascular diseases, cancer, bacterial infections, and diabetes. Nanoparticles play a crucial role in therapy as they can enhance the accumulation and release of pharmacological agents, improve targeted delivery and ultimately decrease the intensity of drug side effects. In this review, we discussthe types of nanomaterials that have various biomedical applications. Biomolecules that are often conjugated with nanoparticles are proteins, peptides, DNA, and lipids, which can enhance biocompatibility, stability, and solubility. In this review, we focus on bioconjugation and nanoparticles and also discuss different types of nanoparticles including micelles, liposomes, carbon nanotubes, nanospheres, dendrimers, quantum dots, and metallic nanoparticles and their crucial role in various diseases and clinical applications. Additionally, we review the use of nanomaterials for bio-imaging, drug delivery, biosensing tissue engineering, medical devices, and immunoassays. Understandingthe characteristics and properties of nanoparticles and their interactions with the biological system can help us to develop novel strategies for the treatment, prevention, and diagnosis of many diseases including cancer, pulmonary diseases, etc. In this present review, the importance of various kinds of nanoparticles and their biomedical applications are discussed in much detail.
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7
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A simultaneous strategy for the preparation of acetylation modified cellulose nanofiber/polypropylene composites. Carbohydr Polym 2022; 277:118744. [PMID: 34893208 DOI: 10.1016/j.carbpol.2021.118744] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/28/2021] [Accepted: 10/09/2021] [Indexed: 11/22/2022]
Abstract
In this study, a simultaneous method with nano-fibrillation of acetylation modified fibers (A-cellulose) and preparation of cellulose nanofiber (CNF)/apolar polymer composites are proposed. The A-cellulose and isotactic polypropylene (iPP) were initially mixed and then melt-compounding in a twin-screw extruder. Due to the reduction of hydrogen bonding force inside A-cellulose and the high shear force provided by the extruder, acetylated cellulose nanofiber (A-CNF) distributed with the state of a three-dimensional network in PP composites (ACPP) were successful prepared. The scanning electron microscopy (SEM) images of A-CNF, dynamic mechanical analysis (DMA) and X-ray diffraction (XRD) results of ACPP showed that the A-CNF had good interface compatibility with PP matrix, and had the effects of inducing PP crystallization, decreasing crystal size and increasing the ratio of γ crystals in composites, which could improve the mechanical and thermodynamic properties of composites.
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8
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Yu X, Li Y, Li Y, Liu S, Wu Z, Dong H, Xu Z, Li X, Liu Q. An electrochemical amplification strategy based on the ferrocene functionalized cuprous oxide superparticles for the detection of NSE. Talanta 2022; 236:122865. [PMID: 34635247 DOI: 10.1016/j.talanta.2021.122865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 09/04/2021] [Accepted: 09/08/2021] [Indexed: 10/20/2022]
Abstract
A sandwich-type electrochemical immunosensor was designed utilizing ferrocene-functionalized cuprous oxide superparticles (Au/Fc@CuxO SPs) as the signal label and graphene supported by hollow carbon balls (HCNs-GR) as the substrate. The CuxO SPs possess a superparticle structure with synergistic properties of isotropy and promising catalytic activity. Ferrocene (Fc) was deposited on the CuxO SPs to act as the electronic transmission medium. The Au/Fc@CuxO SPs played a pivotal role in improving the sensitivity of the immunosensor. The graphene supported by hollow carbon balls (HCNs-GR) was used to modify the electrode surface. The embedding of hollow carbon nanospheres (HCNs) reduced the decrease of the effective surface area caused by the stacking of graphene nanotubes. Meanwhile, the load of carbon balls further increases the surface area of graphene, enabled HCNs-GR to immobilize antibodies more effectively, improved the sensitivity of the immunosensor. The proposed immunosensor showed a linear range from 500 fg/mL to 100 ng/mL, with the detection limit to 25.7 fg/mL.
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Affiliation(s)
- Xiaodong Yu
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Yueyun Li
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China.
| | - Yueyuan Li
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Shanghua Liu
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Zhanglei Wu
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Hui Dong
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Zhen Xu
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Xinjin Li
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Qing Liu
- School of Chemical Engineering, Shandong University of Technology, Zibo, 255049, PR China
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9
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Polyethyleneimine grafted starch nanocrystals as a novel biosorbent for efficient removal of methyl blue dye. Carbohydr Polym 2021; 273:118579. [PMID: 34560983 DOI: 10.1016/j.carbpol.2021.118579] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 08/10/2021] [Accepted: 08/16/2021] [Indexed: 11/21/2022]
Abstract
In this paper, a novel biosorbent of SNCs-PEI was successfully prepared by grafting polyethylenimine (PEI) onto the starch nanocrystals (SNCs) using glutaraldehyde as a crosslinking agent. The optimal preparation conditions of SNCs-PEI were determined by the orthogonal experiments of the three-factor and three-level, and the SNCs-PEI was characterized by Fourier transform infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy (EDAX), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The zeta potential of SNCs-PEI was +26.3 mV (pH 7), which had a good adsorption performance for the anionic dye methyl blue (MB). The adsorption kinetics and isotherm of MB by SNCs-PEI were studied. At the temperature of 25, 30 and 35 °C, its maximum adsorption capacity was 337.84, 377.36 and 383.14 mg g-1, respectively. The adsorption of MB by the SNCs-PEI was a spontaneous and endothermic process according to the thermodynamic analysis.
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10
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Chen Y, Duan Q, Zhu J, Liu H, Chen L, Yu L. Anchor and bridge functions of APTES layer on interface between hydrophilic starch films and hydrophobic soyabean oil coating. Carbohydr Polym 2021; 272:118450. [PMID: 34420712 DOI: 10.1016/j.carbpol.2021.118450] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/28/2021] [Accepted: 07/13/2021] [Indexed: 12/23/2022]
Abstract
One of the well-recognized weaknesses of starch-based materials is their sensitivity to moisture, which limits their expanding applications. Natural materials, soyabean oils have been used as a coating for starch film, but the poor interface between hydrophilic starch and hydrophobic soyabean oil needs to be improved. In this work, (3-Aminopropyl) triethoxysilane (APTES) was used to reinforce the bonding between starch matrix and the coating of bio-based acrylated epoxidized soyabean oil (AESO). Study results show that APTES interacted effectively with both starch films via hydrogen bonding, and chemical bonds with AESO through the Michael addition reaction. Pull adhesion and cross-cutting tests demonstrated that the interfacial adhesion was significantly improved after treating their surface with APTES. The interfacial adhesion strength increased over 4 times after treating with 1.6 wt% APTES. The starch films treated with APTES and AESO coating were intact after soaking in water for more than 2 h.
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Affiliation(s)
- Ying Chen
- Collage of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Department of Food Science and Technology, National University of Singapore, Science Drive 2, 117542, Singapore
| | - Qingfei Duan
- Collage of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jian Zhu
- Collage of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Hongsheng Liu
- Collage of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Sino-Singapore International Joint Research Institute, Knowledge City, Guangzhou 510663, China
| | - Ling Chen
- Collage of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Long Yu
- Collage of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Sino-Singapore International Joint Research Institute, Knowledge City, Guangzhou 510663, China.
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11
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Lu H, Tian Y. Nanostarch: Preparation, Modification, and Application in Pickering Emulsions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:6929-6942. [PMID: 34142546 DOI: 10.1021/acs.jafc.1c01244] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nanostarch, as a food-grade Pickering emulsion stabilizer, has attracted wide attention owing to its biodegradability, nontoxicity, small size, and large specific surface area. In this review, the preparation, modification, and application of Pickering emulsions incorporating nanostarch are described. At present, methods for nanostarch preparation mainly include acid hydrolysis, acid hydrolysis combined with other treatments, nanoprecipitation, ultrasonication, ball milling, and cross-linking. Nanostarch is a promising Pickering emulsion stabilizer, and its emulsifying ability of nanostarch is significantly improved by hydrophobic modification. The hydrophobicity, charge, size, and content of nanostarch affect the emulsion stability. Future developments in this area of research include the efficient and environmentally friendly preparation of nanostarch as well as the control of its hydrophobicity via modification. Future studies should focus on the digestibility and storage stability of Pickering emulsions stabilized by nanostarch under different conditions.
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Affiliation(s)
- Hao Lu
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Yaoqi Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
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12
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Liu C, Li K, Li X, Zhang M, Li J. Formation and structural evolution of starch nanocrystals from waxy maize starch and waxy potato starch. Int J Biol Macromol 2021; 180:625-632. [PMID: 33766589 DOI: 10.1016/j.ijbiomac.2021.03.115] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 03/03/2021] [Accepted: 03/19/2021] [Indexed: 11/15/2022]
Abstract
The formation and structural evolution of starch nanocrystals from waxy maize starch (WMS) and waxy potato starch (WPS) by acid hydrolysis were studied. The relative crystallinity, the short-range molecular order, and the double-helix content of WMS and WPS increased significantly during the initial stage of acid hydrolysis, indicating that acid preferentially eroded the amorphous regions of starch granules. With time, there was increased destruction of lamellar structures, causing the granules to completely disintegrate to form nanocrystals. WMS and WPS displayed different hydrolysis mechanisms. WPS was more susceptible to acid hydrolysis than WMS, and WMS exhibited an endo-corrosion pattern and WPS showed an exo-corrosion pattern. WMS nanocrystals had a parallelepiped shape, and WPS nanocrystals were round. This difference in shape is likely due to the different packing configuration of double helices in native starches.
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Affiliation(s)
- Cancan Liu
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Kai Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China; Provincial and Ministerial Collaborative Innovation Center for Sugar Industry, Nanning 530004, China; Engineering Research Center for Sugar Industry and Comprehensive Utilization, Ministry of Education, Nanning 530004, China.
| | - Xiaoxi Li
- Ministry of Education Engineering Research Center of Starch & Protein Processing, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Mingjun Zhang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Jianbin Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China; Provincial and Ministerial Collaborative Innovation Center for Sugar Industry, Nanning 530004, China; Engineering Research Center for Sugar Industry and Comprehensive Utilization, Ministry of Education, Nanning 530004, China.
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13
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Xiong X, Huang M, Zhou X, Zhou H, Zeng C, Zhao Z, Xiao Q. Physicochemical studies of nanocrystals of starches from two rice (Oryza sativa L.) types and their characteristics using various modern instrument techniques. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:1038-1046. [PMID: 32767364 DOI: 10.1002/jsfa.10712] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 07/29/2020] [Accepted: 08/06/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Starch nanocrystals have received considerable attention, due to their biodegradability, nontoxicity and renewable and abundant sources. The objective of this research is to compare the morphology, physicochemical characteristics and rheological properties of native (NSNC) and waxy rice starch nanocrystals (WSNC). RESULTS Both NSNC and WSNC exhibited a platelet-like shape, and they tended to show square-like platelet morphology with increasing initial amylopectin content. Compared to native starches, three weight loss stages of NSNC and WSNC in thermogravimetric analysis curves were observed, while the thermal depolymerization of NSNC started earlier than that of WSNC. The relative crystallinity of NSNC and WSNC was 38.6% and 48.3%, respectively, which were markedly higher than that of native starches. Fourier transform infrared spectra revealed that NSNC presented the highest ratio of 1045/1014 cm-1 bands among the tested samples, which was probably due to the re-association of retrograded amylose to double-helices structure in NSNC. Moreover, the introduction of sulfur atoms on the surface of NSNC and WSNC was confirmed from the results of X-ray photoelectron spectroscopy. At 5% (w/v) and 10% (w/v) concentration levels, all SNC suspensions exhibited a shear-thinning behavior as the shear rate increased from 0.1 to 100 s-1 . CONCLUSIONS Starch nanocrystals obtained from native and waxy rice starch can be potentially used as reinforcement in biodegradable nanocomposites for packaging, fat replacers, thickening agents and emulsion stabilizers. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Xiong Xiong
- School of Food Science and Technology, Hunan Agricultural University, Changsha, China
| | - Min Huang
- School of Food Science and Technology, Hunan Agricultural University, Changsha, China
| | - Xiaolan Zhou
- School of Food Science and Technology, Hunan Agricultural University, Changsha, China
| | - Hui Zhou
- School of Food Science and Technology, Hunan Agricultural University, Changsha, China
| | - Chaoxi Zeng
- School of Food Science and Technology, Hunan Agricultural University, Changsha, China
| | - Zhengtao Zhao
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Qian Xiao
- School of Food Science and Technology, Hunan Agricultural University, Changsha, China
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14
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An Efficient Approach to Prepare Water-Redispersible Starch Nanocrystals from Waxy Potato Starch. Polymers (Basel) 2021; 13:polym13030431. [PMID: 33572951 PMCID: PMC7866399 DOI: 10.3390/polym13030431] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 12/21/2022] Open
Abstract
Starch nanocrystals (SNCs) are a biodegradable polymer which has been widely studied and used in many fields. In this study, we have developed an efficient procedure for the preparation of SNCs. First, sodium hexametaphosphate (SHMP) and vinyl acetate (VAC) were used to modify waxy potato starch (WPS). Then, the modified starches were hydrolyzed with sulfuric acid to prepare SNCs. Results showed that SNCs prepared with modified starch had higher zeta potentials and better dispersion properties than the original starch. After modification, WPS still maintained its semi-crystalline structure, but the surface became rougher. SHMP-modified WPS showed a decrease in viscosity peak and an increase in gelatinization temperature. VAC-modified WPS showed increased swelling power. Additionally, SNCs prepared with VAC-modified WPS had better water redispersibility and dispersion stability than those from SHMP-modified starch—which will have broader application prospects in the field of safe and biodegradable food packaging.
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15
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Ashraf MA, Liu Z, Li C, Zhang D. Recent advances in catalytic silylation of hydroxyl‐bearing compounds: A green technique for protection of alcohols using Si–O bond formations. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.6131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Muhammad Aqeel Ashraf
- School of Forestry Henan Agricultural University Zhengzhou 450002 China
- School of Environmental Studies China University of Geosciences Wuhan 430074 China
| | - Zhenling Liu
- School of Management Henan University of Technology Zhengzhou 450001 China
| | - Cheng Li
- School of Forestry Henan Agricultural University Zhengzhou 450002 China
| | - Dangquan Zhang
- School of Forestry Henan Agricultural University Zhengzhou 450002 China
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Peng H, Wang M, Hu C, Guo J. A New Type of MgFe 2O 4@CuS-APTES Nanocarrier for Magnetic Targeting and Light-Microwave Dual Controlled Drug Release. Int J Nanomedicine 2020; 15:8783-8802. [PMID: 33204088 PMCID: PMC7667186 DOI: 10.2147/ijn.s267614] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 09/30/2020] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Cancer is a major health problem worldwide, and the most extensive treatment can be obtained by using chemotherapy in the clinic. However, due to the low selectivity of cancer cells, chemotherapy drugs produce a series of grievous side effects on normal cells. METHODS In this research, we developed novel nanocarriers for magnetically targeted near-infrared (NIR) light-electromagnetic wave dual controlled drug delivery based on MgFe2O4@CuS nanoparticles (NPs) modified with aminopropyltriethoxysilane (APTES) in response to magnetic, NIR light, and electromagnetic wave irradiation. Synthesis and characterization of MgFe2O4@CuS-APTES NPs was carried out using X-ray diffraction measurements, scanning electron microscopy, transmission electron microscopy, photoluminescence emission spectra, UV-1800 spectrophotometer, N5230A vector network analyzer, MDS-6 microwave sample preparation system, and superconducting quantum interference device. In addition to that mentioned above, we also explored many other sides, such as the drug-loading, drug-controlled release efficiency, elect99omagnetic wave thermal effect and photo-thermal effect. RESULTS The results showed that APTES-modified MgFe2O4@CuS NPs had 37% high drug-loading capacity and high electromagnetic wave thermal conversion ability and NIR-light thermal conversion ability. In addition, ibuprofen (IBU) release from the MgFe2O4@CuS-APTES-IBU depends on the electromagnetic wave (2.45 GHz) and 1060 nm NIR light irradiation. After five cycles, the drug-release percentage was 90% and 66% separately, and could be adjusted by the time and cycles times of electromagnetic wave and NIR light irritation. Electromagnetic wave irradiation compared with NIR light irradiation, has a higher drug release rate and better penetration. Therefore, choosing different stimulation methods according to the treatment needs of the disease, we can achieve accurate personalized treatment of the disease. DISCUSSION Our findings indicate that multifunctional APTES modified MgFe2O4@CuS NPs could be used for the first time as a new drug carrier for "location-timing-quantification" drug release with magnetic targeting and dual control of NIR light-electromagnetic waves.
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Affiliation(s)
- Hongxia Peng
- Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, Hunan University of Humanities, Science and Technology, Lou’di, Hunan, People’s Republic of China
- State Key Laboratory of Powder Metallurgy and School of Materials Science and Engineering, Central South University, Changsha, Hunan, People’s Republic of China
| | - Menglin Wang
- Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, Hunan University of Humanities, Science and Technology, Lou’di, Hunan, People’s Republic of China
| | - Chuanyue Hu
- Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, Hunan University of Humanities, Science and Technology, Lou’di, Hunan, People’s Republic of China
| | - Jun Guo
- Hunan Provincial Key Laboratory of Fine Ceramics and Powder Materials, Hunan University of Humanities, Science and Technology, Lou’di, Hunan, People’s Republic of China
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Yemenicioğlu A, Farris S, Turkyilmaz M, Gulec S. A review of current and future food applications of natural hydrocolloids. Int J Food Sci Technol 2020. [DOI: 10.1111/ijfs.14363] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ahmet Yemenicioğlu
- Department of Food Engineering Izmir Institute of Technology 35430 Urla, İzmir Turkey
| | - Stefano Farris
- DeFENS, Department of Food, Environmental and Nutritional Sciences Packaging Division University of Milan Via Celoria 2 20133 Milan Italy
| | - Meltem Turkyilmaz
- Institute of Food Safety Ankara University 06110 Dışkapı, Ankara Turkey
| | - Sukru Gulec
- Department of Food Engineering Izmir Institute of Technology 35430 Urla, İzmir Turkey
- Department of Molecular Nutrition and Human Physiology Laboratory Izmir Institute of Technology 35430 Urla, İzmir Turkey
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Su Q, Wang Y, Zhao X, Wang H, Wang Z, Wang N, Zhang H. Functionalized nano-starch prepared by surface-initiated atom transfer radical polymerization and quaternization. Carbohydr Polym 2019; 229:115390. [PMID: 31826456 DOI: 10.1016/j.carbpol.2019.115390] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 09/23/2019] [Accepted: 09/26/2019] [Indexed: 12/19/2022]
Abstract
Functionalized nano-starch particles, designed for the adsorption of heavy metals in wastewater, were prepared by a nano-processing, a halogenated grafting modification, a grafting copolymerization of surface-initiated atom transfer radical polymerization (SI-ATRP) and a quaternized modification of native corn starch. The influence of the synthesis process variables, such as the hydrolysis time, the concentration of monomer, the molar ratio of copper bromide (CuBr) to 2, 2'-bipyridine (bpy) and the graft copolymerization temperature on the properties of the products were studied. The morphology, molecular structure, crystalline structure of the functionalized nano-starch and its derivatives were characterized by Fourier transform-infrared spectroscopy (FT-IR), 1H nuclear magnetic resonance (1H-NMR) spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission electron microscope (TEM). The functionalized nano-starch showed strong adsorption for chromate and could be used as an effective wastewater treatment agent. Its adsorption capability could be almost totally regenerated by an easy process.
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Affiliation(s)
- Qiong Su
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in Universities of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, 730030, PR China
| | - Yanbin Wang
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in Universities of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, 730030, PR China.
| | - Xiangfei Zhao
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in Universities of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, 730030, PR China.
| | - Hongling Wang
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in Universities of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, 730030, PR China
| | - Zhichao Wang
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in Universities of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, 730030, PR China
| | - Nianen Wang
- Taohuashan TV Station of Culture, Sports, Film and Television Bureau of Huining County of Gansu, BaiYin, 730700, PR China
| | - Hong Zhang
- Key Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in Universities of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou, 730030, PR China
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