PMID- 33060003 OWN - NLM STAT- MEDLINE DCOM- 20210203 LR - 20210203 IS - 1873-7072 (Electronic) IS - 0308-8146 (Linking) VI - 342 DP - 2021 Apr 16 TI - Probing gold nanoparticles for the desensitization to beta-lactoglobulin from binding mechanism, structure and IgE binding changes. PG - 128329 LID - S0308-8146(20)32191-9 [pii] LID - 10.1016/j.foodchem.2020.128329 [doi] AB - Because of the adsorption of proteins, gold nanoparticles (AuNPs) create potential biological risks in biomedicine, leading to the formation of the protein corona. This adsorption is mainly due to the formation of gold-sulfur (AuS) covalent bonds between the AuNPs and the -SH groups, causing bioactivity denaturation and biological problems; however, it could also lead to some biological benefits. We explored AuNPs as a potential material for desensitization to allergens, such as beta-lactoglobulin (betaLG). To address the desensitization of AuNPs, we investigated the binding mechanism and the specific relationship of the time evolution of AuS bond, secondary structure, and allergy changes. The formation of AuS bond takes approximately 9 h, consistent with the complete changes time in secondary structure and immunoglobulin E (IgE) combining capacity of the betaLG, decreasing allergic reactions. These results indicate that AuNPs have the potential to minimize allergic reactions in the future. CI - Copyright (c) 2020 Elsevier Ltd. All rights reserved. FAU - Zhang, Xiaoning AU - Zhang X AD - School of Food Science & Engineering, Qilu University of Technology, 250353 Jinan, China. Electronic address: xiaoningzhang@126.com. FAU - Li, Meifeng AU - Li M AD - School of Public Health, Chengdu University of Traditional Chinese Medicine, 610075 Chengdu, China. FAU - Lv, Yuanping AU - Lv Y AD - College of Biomass Sciences and Engineering, Sichuan University, 610065 Chengdu, China. FAU - Sun, Xiaoling AU - Sun X AD - School of Food Science & Engineering, Qilu University of Technology, 250353 Jinan, China. FAU - Han, Yao AU - Han Y AD - School of Food Science & Engineering, Qilu University of Technology, 250353 Jinan, China. FAU - Liu, Bing AU - Liu B AD - Resources and Environment Innovation Research Institute, School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, Shandong, China. FAU - Zhao, Xiangzhong AU - Zhao X AD - School of Food Science & Engineering, Qilu University of Technology, 250353 Jinan, China. Electronic address: xiangzhongzhao@126.com. FAU - Huang, Xiaowen AU - Huang X AD - State Key Laboratory of Biobased Materials and Green Papermaking, School of Bioengineering, Qilu University of Technology, 250353 Jinan, China. Electronic address: huangxiaowen2013@gmail.com. LA - eng PT - Journal Article DEP - 20201008 PL - England TA - Food Chem JT - Food chemistry JID - 7702639 RN - 0 (Allergens) RN - 0 (Lactoglobulins) RN - 37341-29-0 (Immunoglobulin E) RN - 7440-57-5 (Gold) SB - IM MH - Adsorption MH - Allergens/chemistry/metabolism MH - Gold/*chemistry MH - Immunoglobulin E/*metabolism MH - Lactoglobulins/*chemistry/*metabolism MH - Metal Nanoparticles/*chemistry MH - Protein Structure, Secondary OTO - NOTNLM OT - AuS bonds OT - Desensitization OT - Gold nanoparticles (AuNPs) OT - Protein corona OT - beta-Lactoglobulin (betaLG) EDAT- 2020/10/17 06:00 MHDA- 2021/02/04 06:00 CRDT- 2020/10/16 05:38 PHST- 2020/04/12 00:00 [received] PHST- 2020/09/17 00:00 [revised] PHST- 2020/10/05 00:00 [accepted] PHST- 2020/10/17 06:00 [pubmed] PHST- 2021/02/04 06:00 [medline] PHST- 2020/10/16 05:38 [entrez] AID - S0308-8146(20)32191-9 [pii] AID - 10.1016/j.foodchem.2020.128329 [doi] PST - ppublish SO - Food Chem. 2021 Apr 16;342:128329. doi: 10.1016/j.foodchem.2020.128329. Epub 2020 Oct 8.