title: Ð¡Ð¸Ð½ÑÐµÐ· Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð½Ð°Ð½Ð¾ÑÐ°ÑÑÐ¸Ñ ÑÐµÑÐµÐ±ÑÐ°, ÑÑÐ°Ð±Ð¸Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ Ð²Ð¾Ð´Ð¾ÑÐ°ÑÑÐ²Ð¾ÑÐ¸Ð¼ÑÐ¼ ÑÑÐ½ÐºÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½ÑÐ¼ ÑÐ¾Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ¾Ð¼ N-Ð²Ð¸Ð½Ð¸Ð»Ð¿Ð¸ÑÑÐ¾Ð»Ð¸Ð´Ð¾Ð½Ð°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Synthesis and analysis of silver nanoparticles stabilized by water soluble N-vinilpyrrolidone copolymer
Creators: name: Ð¦ÐµÐ»Ð¸Ð½ÐºÐ¾, ÐÐ»ÐµÐ½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð¡Ð¿ÐµÐºÑÑÐ¾ÑÐºÐ¾Ð¿Ð¸Ñ
ÐÐ¾Ð»Ð¸Ð¼ÐµÑÑ
Ð¡ÐµÑÐµÐ±ÑÐ¾
ÐÐ°Ð½Ð¾ÑÑÑÑÐºÑÑÑÐ½ÑÐµ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ñ
Ð½Ð°Ð½Ð¾Ð´Ð¸ÑÐ¿ÐµÑÑÐ½ÑÐµ ÑÐ¸ÑÑÐµÐ¼Ñ
Ð°Ð½ÑÐ¸Ð±Ð°ÐºÑÐµÑÐ¸Ð°Ð»ÑÐ½Ð°Ñ Ð°ÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ
nanodisperse systems
antibacterial activity

description: Ð Ð°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° ÑÐ¸Ð½ÑÐµÐ·Ñ Ð¸ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ½Ð¾Ð¼Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¼ÐµÑÐ¾Ð´Ð°Ð¼Ð¸ Ð£Ð¤/Ð²Ð¸Ð´Ð¸Ð¼Ð¾Ð¹ ÑÐ¿ÐµÐºÑÑÐ¾ÑÐºÐ¾Ð¿Ð¸Ð¸, ÐÐ¡Ð Ð¸ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ²ÐµÑÐ¾ÑÐ°ÑÑÐµÑÐ½Ð¸Ñ Ð±Ð¸Ð¾Ð°ÐºÑÐ¸Ð²Ð½ÑÑ Ð³Ð¸Ð±ÑÐ¸Ð´Ð½ÑÑ Ð½Ð°Ð½Ð¾Ð´Ð¸ÑÐ¿ÐµÑÑÐ¸Ð¹ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÐÐ§ ÑÐµÑÐµÐ±ÑÐ°. Ð Ð°Ð±Ð¾ÑÐ° Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð° Ð½Ð° Ð±Ð°Ð·Ðµ ÐÐ°Ð±Ð¾ÑÐ°ÑÐ¾ÑÐ¸Ð¸ â 13 ÐÐÐ¡ Ð ÐÐ (ÐÐ°Ð±Ð¾ÑÐ°ÑÐ¾ÑÐ¸Ñ Ð¼Ð¾ÑÑÐ¾Ð»Ð¾Ð³Ð¸Ð¸ Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ¾Ð²) Ð² ÑÐ¾ÑÑÐ°Ð²Ðµ Ð¸ Ð¿Ð¾Ð´ ÑÑÐºÐ¾Ð²Ð¾Ð´ÑÑÐ²Ð¾Ð¼ Ð½Ð°ÑÑÐ½Ð¾Ð¹ Ð³ÑÑÐ¿Ð¿Ñ: Ð¡. Ð. ÐÐ°Ð»ÑÐµÐ²Ð°, Ð. Ð­. ÐÑÐ»ÐµÐ³Ð¶Ð°Ð½Ð¸Ð½Ð°. ÐÐ°Ð½Ð¾Ð´Ð¸ÑÐ¿ÐµÑÑÐ½ÑÐµ ÑÐ¸ÑÑÐµÐ¼Ñ Ð±Ð¸Ð¾Ð³ÐµÐ½Ð½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð² ÑÐ°ÐºÐ¸Ñ, ÐºÐ°Ðº ÑÐµÑÐµÐ±ÑÐ¾ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÑÑÑ Ð¾ÑÐ¾Ð±ÑÐ¹ Ð¸Ð½ÑÐµÑÐµÑ Ð´Ð»Ñ Ð¼ÐµÐ´Ð¸ÑÐ¸Ð½Ñ Ð¸ ÑÐ°ÑÐ¼Ð°ÐºÐ¾Ð»Ð¾Ð³Ð¸Ð¸. ÐÐ§ Ag0 Ð¿ÑÐ¾ÑÐ²Ð»ÑÑÑ ÑÐ¸Ð»ÑÐ½Ð¾ Ð²ÑÑÐ°Ð¶ÐµÐ½Ð½ÑÐµ Ð°Ð½ÑÐ¸Ð¼Ð¸ÐºÑÐ¾Ð±Ð½ÑÐµ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð°, Ð¿ÑÐ¸ÑÐµÐ¼ ÑÑÐµÐ¿ÐµÐ½Ñ Ð°Ð½ÑÐ¸Ð±Ð°ÐºÑÐµÑÐ¸Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ ÑÑÑÐµÐºÑÐ° Ð² Ð·Ð½Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð¹ Ð¼ÐµÑÐµ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÑÐµÑÑÑ ÑÐ°Ð·Ð¼ÐµÑÐ°Ð¼Ð¸ Ð¸ Ð¼Ð¾ÑÑÐ¾Ð»Ð¾Ð³Ð¸ÐµÐ¹ ÐÐ§. ÐÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼Ð¾ ÑÐ°ÐºÐ¶Ðµ Ð¾ÑÐ¼ÐµÑÐ¸ÑÑ Ð¸Ð¼Ð¼ÑÐ½Ð¾ÑÑÐ¸Ð¼ÑÐ»Ð¸ÑÑÑÑÐ¸Ð¹ ÑÑÑÐµÐºÑ Ð¸ ÑÐ½Ð¸ÐºÐ°Ð»ÑÐ½ÑÐµ Ð³Ð¸Ð¿Ð¾Ð°Ð»Ð»ÐµÑÐ³ÐµÐ½Ð½ÑÐµ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð° ÐÐ§ Ag0. ÐÐ·Ð²ÐµÑÑÐ½Ð¾, ÑÑÐ¾ ÐÐ§ ÐºÐ¸Ð½ÐµÑÐ¸ÑÐµÑÐºÐ¸ Ð½ÐµÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ñ Ð² ÑÐ°ÑÑÐ²Ð¾ÑÐµ Ð¸ Ð¸Ð¼ÐµÑÑ ÑÐµÐ½Ð´ÐµÐ½ÑÐ¸Ñ, ÐºÐ°Ðº Ðº Ð°Ð³Ð»Ð¾Ð¼ÐµÑÐ°ÑÐ¸Ð¸, ÑÐ°Ðº Ð¸ Ðº Ð¾ÐºÐ¸ÑÐ»ÐµÐ½Ð¸Ñ, Ð¿Ð¾ÑÑÐ¾Ð¼Ñ Ð¸Ñ Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼Ð¾ ÑÑÐ°Ð±Ð¸Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°ÑÑ. Ð¨Ð¸ÑÐ¾ÐºÐ¾ ÑÐ°ÑÐ¿ÑÐ¾ÑÑÑÐ°Ð½ÑÐ½Ð½ÑÐ¼Ð¸ ÑÑÐ°Ð±Ð¸Ð»Ð¸Ð·Ð°ÑÐ¾ÑÐ°Ð¼Ð¸ ÑÐ²Ð»ÑÑÑÑÑ Ð²ÑÑÐ¾ÐºÐ¾Ð¼Ð¾Ð»ÐµÐºÑÐ»ÑÑÐ½ÑÐµ ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ñ. ÐÐ·Ð²ÐµÑÑÐ½Ð¾ ÑÐ°Ðº Ð¶Ðµ, ÑÑÐ¾ Ð² Ð¿ÑÐ¸ÑÑÑÑÑÐ²Ð¸Ð¸ ÑÐ¾Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ¾Ð² Ð¿ÑÐ¾ÑÐµÑÑ Ð²Ð¾ÑÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð¸Ñ Ð¸Ð¾Ð½Ð¾Ð² Ð¿ÑÐ¾ÑÐµÐºÐ°ÐµÑ Ñ Ð±Ð¾Ð»ÐµÐµ Ð²ÑÑÐ¾ÐºÐ¾Ð¹ ÑÐºÐ¾ÑÐ¾ÑÑÑÑ, ÑÐµÐ¼ Ð² ÑÐ»ÑÑÐ°Ðµ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑÐ¸Ñ Ð³Ð¾Ð¼Ð¾Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ¾Ð², Ð¸ Ð¾Ð±ÑÐ°Ð·ÑÑÑÐ¸ÐµÑÑ Ð¿ÑÐ¸ ÑÑÐ¾Ð¼ ÐÐ§ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸Ð·ÑÑÑÑÑ Ð²ÑÑÐ¾ÐºÐ¾Ð¹ ÑÑÐ°Ð±Ð¸Ð»ÑÐ½Ð¾ÑÑÑÑ. Ð Ð½Ð°ÑÑÐ¾ÑÑÐµÐ¹ ÑÐ°Ð±Ð¾ÑÐµ Ð±ÑÐ»Ð¸ ÑÐ¸Ð½ÑÐµÐ·Ð¸ÑÐ¾Ð²Ð°Ð½Ñ Ð½Ð¾Ð²ÑÐµ Ð³Ð¸Ð±ÑÐ¸Ð´Ð½ÑÐµ Ð½Ð°Ð½Ð¾Ð´Ð¸ÑÐ¿ÐµÑÑÐ¸Ð¸ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÐÐ§ Ag0, ÑÑÐ°Ð±Ð¸Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ Ð²Ð¾Ð´Ð¾ÑÐ°ÑÑÐ²Ð¾ÑÐ¸Ð¼ÑÐ¼ ÑÐ¾Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ¾Ð¼ (Ð¡Ð) N-Ð²Ð¸Ð½Ð¸Ð»Ð¿Ð¸ÑÑÐ¾Ð»Ð¸Ð´Ð¾Ð½Ð° Ñ N-ÐºÑÐ¾ÑÐ¸Ð»-N-Ð°Ð¼Ð¸Ð½Ð¾ÑÐ°Ð»Ð¸ÑÐ¸Ð»Ð°ÑÐ¾Ð¼ Ð½Ð°ÑÑÐ¸Ñ Ð¸ ÐºÑÐ¾ÑÐ¸Ð»Ð¾Ð²ÑÐ¼ ÑÐ¿Ð¸ÑÑÐ¾Ð¼ (ÑÐ¾ÑÑÐ°Ð² 89.6: 1.8:8.6 Ð¼Ð¾Ð». %) Ð¿ÑÐ¸ Ð²Ð°ÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ð¸ ÐºÐ¾Ð½ÑÐµÐ½ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ ÑÐ¾Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ñ ÐÐ§ Ag0 Ð¸ Ð¡Ð Î½ (Î½ = 0.01-0.1). ÐÐ§ Ag0 Ð¿Ð¾Ð»ÑÑÐ°Ð»Ð¸ Ð² ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¾ÐºÐ¸ÑÐ»Ð¸ÑÐµÐ»ÑÐ½Ð¾-Ð²Ð¾ÑÑÑÐ°Ð½Ð¾Ð²Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð¹ ÑÐµÐ°ÐºÑÐ¸Ð¸ Ð½Ð¸ÑÑÐ°ÑÐ° ÑÐµÑÐµÐ±ÑÐ° Ñ Ð±Ð¾ÑÐ³Ð¸Ð´ÑÐ¸Ð´Ð¾Ð¼ Ð½Ð°ÑÑÐ¸Ñ: AgNÐ3+NaBH4+H2OâAg0+NaNO3+B(OH)3+H2â (1) ÐÐµÑÐ¾Ð´Ð°Ð¼Ð¸ Ð£Ð¤/Ð²Ð¸Ð´Ð¸Ð¼Ð¾Ð¹ ÑÐ¿ÐµÐºÑÑÐ¾ÑÐºÐ¾Ð¿Ð¸Ð¸, ÐÐ¡Ð Ð¸ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ²ÐµÑÐ¾ÑÐ°ÑÑÐµÑÐ½Ð¸Ñ Ð¿Ð¾ÐºÐ°Ð·Ð°Ð½Ð¾ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ° Î½ Ð½Ð° ÑÐ¿ÐµÐºÑÑÐ°Ð»ÑÐ½ÑÐµ Ð¸ ÑÐ°Ð·Ð¼ÐµÑÐ½ÑÐµ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ ÑÐµÑÐµÐ±ÑÐ¾ÑÐ¾Ð´ÐµÑÐ¶Ð°ÑÐ¸Ñ Ð½Ð°Ð½Ð¾Ð´Ð¸ÑÐ¿ÐµÑÑÐ¸Ð¹. ÐÐµÑÐ¾Ð´Ð¾Ð¼ ÐÐ¡Ð ÑÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð¾, ÑÑÐ¾ Ð²Ð¾ÑÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð¸Ðµ Ð² Ð²Ð¾Ð´Ðµ Ð¸Ð¾Ð½Ð¾Ð² ÑÐµÑÐµÐ±ÑÐ° Ð² Ð¿ÑÐ¸ÑÑÑÑÑÐ²Ð¸Ð¸ Ð¡Ð Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÐµÑ Ð¿Ð¾Ð»ÑÑÐ°ÑÑ Ð´Ð¸ÑÐºÑÐµÑÐ½ÑÐµ ÑÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐµÑÐµÐ±ÑÐ¾ÑÐ¾Ð´ÐµÑÐ¶Ð°ÑÐ¸Ðµ Ð½Ð°Ð½Ð¾ÑÑÑÑÐºÑÑÑÑ Ð´Ð¸Ð°Ð¼ÐµÑÑÐ¾Ð¼ Ð´Ð¾ 200 Ð½Ð¼.
description: The work is dedicated to the synthesis and analysis of biogenous element Ag0 nanoparticles hybrid nanodispersions with UV/visible spetroscopy, AFM (atomic force microscopy) and dynamic light scattering methods. The work was done on the base of Institute of Macromolecular Compounds of the Russian Academy of Sciences Laboratory N 13 (Polymer morphology laboratory) under the leadership of the scientific group: S. V. Valueva, M. E. Vylegzhanina. Nanodispersed systems for biogenic elements such as silver are of special interest for medicine and pharmacology. NPs of zero-valent silver show strong antimicrobial characteristics. Moreover the antimicrobial effect level is defined in a large scale by the morphology and size of NPs. We need to pay attention to the fact that zero-valent silver NPs have immune stimulating and unique hypoallergic effects. It has been established that NPs in solution are kinetically unstable and have a tendency both for agglomeration and oxygenation. We have a necessity to stabilize them as a consequence. High-molecular compounds are widespread stabilisers. Certainly in the presence of copolymers the ion restorative process is faster than in a case of relevant homopolimers. Generated NPs can be characterized by high stability in a case. There are the new nanodispersions based on Ag0 NPs synthesized in this work. The Ag0 NPs are stabilized with a water-soluble copolymer (SP) of N-vinylpyrrolidone with N-crotyl-N-aminosalicylate natrium and crotyl alcohol (composition 89.6: 1.8:8.6 mol. %) when varying the concentration ratio of the Ag0 NPs and SP Î½ (Î½ = 0.01-0.1). Ag0 NPs are obtained by the redox reaction of silver nitrate with sodium borohydride: AgNO3+NaBH4+H2OâAg0+NaNO3+B(OH)3+H2â (1) UV/visible spectroscopy methods and dynamic light scattering show the influence of the parameter Î½ on the spectral and dimensional characteristics of silver-containing nanodispersions. Using AFM it is found that the reduction of silver ions in water in the presence of SP, due to sufficiently good shielding, allows us to obtain discrete spherical silver-containing nanostructures with diameter of up to 200 nm.