PMID- 34728301 OWN - NLM STAT- MEDLINE DCOM- 20211220 LR - 20211220 IS - 1879-0003 (Electronic) IS - 0141-8130 (Linking) VI - 193 IP - Pt A DP - 2021 Dec 15 TI - Synthesis, characterization, in vitro antioxidant and hypoglycemic activities of selenium nanoparticles decorated with polysaccharides of Gracilaria lemaneiformis. PG - 923-932 LID - S0141-8130(21)02355-2 [pii] LID - 10.1016/j.ijbiomac.2021.10.189 [doi] AB - Under a simple redox system of selenite and ascorbic acid, we used Gracilaria lemaneiformis polysaccharides (GLPs) as a stabilizer and dispersing agent to generate well-dispersed and stable selenium nanoparticles (SeNPs). The size, stability, morphology and physicochemical properties of GLPs-SeNPs were characterized by dynamic light scattering (DLS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Ultraviolet-visible spectroscopy (UV-vis), Fourier transform infrared (FT-IR) spectra, energy dispersive X-ray (EDX), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Thermogravimetric (TG). The results showed that orange-red, amorphous, zero-valent and spherical GLPs-SeNPs with mean diameter of approximately 92.5 nm were successfully prepared, which exhibited good storage stability at 4 degrees C and remaining highly stable at different ion strengths and pH. The 2,2-diphenyl-1-pycrylhydrazyl (DPPH), 2,2'-Azinobis-(3-ethylbenzthiazoline-6-sulphonate) (ABTS) and superoxide anion radical (O(2)(*-)) radical scavenging ability of GLPs-SeNPs were higher than those of bare SeNPs, GLPs and sodium selenite (Na(2)SeO(3)), and could reach 103.41%, 94.23%, 86% at a concentration of 1.5 mg/mL, respectively. Besides, GLPs-SeNPs also showed higher inhibitory effects on alpha-amylase and alpha-glucosidase. In vitro cytotoxicity assay and hemolysis activity examinations indicated that GLPs-SeNPs have excellent biocompatibility. Therefore, the GLPs-SeNPs might be used as a potential antioxidant agent and antidiabetic agent for food and medical applications. CI - Copyright (c) 2021 Elsevier B.V. All rights reserved. FAU - Tang, Li AU - Tang L AD - College of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China. FAU - Luo, Xiaomin AU - Luo X AD - College of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China. FAU - Wang, Meiyuan AU - Wang M AD - College of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China. FAU - Wang, Zhong AU - Wang Z AD - Yunfu Traditional Chinese Medicine Hospital, Yunfu, Guangdong, China. FAU - Guo, Juan AU - Guo J AD - College of Food Science, Guangdong Pharmaceutical University, Zhongshan, Guangdong, China. FAU - Kong, Fansheng AU - Kong F AD - College of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China. FAU - Bi, Yongguang AU - Bi Y AD - College of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China. Electronic address: biyongguang2002@163.com. LA - eng PT - Journal Article DEP - 20211030 PL - Netherlands TA - Int J Biol Macromol JT - International journal of biological macromolecules JID - 7909578 RN - 0 (Antioxidants) RN - 0 (Hypoglycemic Agents) RN - 0 (Polysaccharides) RN - H6241UJ22B (Selenium) SB - IM MH - Animals MH - *Antioxidants/chemistry/pharmacology MH - Gracilaria/*metabolism MH - *Hypoglycemic Agents/chemistry/pharmacology MH - Mice MH - Nanoparticles/*chemistry MH - *Polysaccharides/chemistry/pharmacology MH - RAW 264.7 Cells MH - *Selenium/chemistry/pharmacology OTO - NOTNLM OT - Antioxidant activity OT - Characterization OT - Gracilaria lemaneiformis polysaccharides OT - Hypoglycemic activity OT - Selenium nanoparticles OT - Stability EDAT- 2021/11/04 06:00 MHDA- 2021/12/21 06:00 CRDT- 2021/11/03 05:54 PHST- 2021/08/10 00:00 [received] PHST- 2021/10/16 00:00 [revised] PHST- 2021/10/26 00:00 [accepted] PHST- 2021/11/04 06:00 [pubmed] PHST- 2021/12/21 06:00 [medline] PHST- 2021/11/03 05:54 [entrez] AID - S0141-8130(21)02355-2 [pii] AID - 10.1016/j.ijbiomac.2021.10.189 [doi] PST - ppublish SO - Int J Biol Macromol. 2021 Dec 15;193(Pt A):923-932. doi: 10.1016/j.ijbiomac.2021.10.189. Epub 2021 Oct 30.