CN109431972A - 一种粒径为100nm—500nm的硫糖铝凝胶的成胶方法 - Google Patents

一种粒径为100nm—500nm的硫糖铝凝胶的成胶方法 Download PDF

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CN109431972A
CN109431972A CN201811382418.8A CN201811382418A CN109431972A CN 109431972 A CN109431972 A CN 109431972A CN 201811382418 A CN201811382418 A CN 201811382418A CN 109431972 A CN109431972 A CN 109431972A
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thiosugar
alumina gel
partial size
ulcerlmin
hydrochloric acid
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CN109431972B (zh
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赖涛
李家伟
张勇
程雪飞
张雪晶
郑雪瑶
罗燕芸
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KUNMING JIDA PHARMACEUTICAL CO Ltd
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Abstract

本发明属于制药工程技术领域,具体涉及一种粒径为100nm—500nm的硫糖铝凝胶的成胶方法。一种粒径为100nm—500nm的硫糖铝凝胶的成胶方法,包括以下步骤:配料,溶解,成胶,离心洗涤。该工艺采用液相成粒技术制备100nm—500nm粒径的硫糖铝凝胶,所制得的硫糖铝凝胶与常用药硫糖铝混悬液相比,平均粒径小10‑20倍;制得的硫糖铝凝胶进入胃粘膜后,有更为强劲的粘附力和更长的粘附时间,可粘附在溃疡面,保护胃黏膜免受进一步的破坏。

Description

一种粒径为100nm—500nm的硫糖铝凝胶的成胶方法
技术领域
本发明属于制药工程技术领域,具体涉及一种粒径为100nm—500nm的硫糖铝凝胶的成胶方法。
背景技术
硫糖铝(Sucralfate),是有效的抗消化性溃疡药,具有保护溃疡面,促进溃疡愈合的作用。其作用机制是在酸性环境下,本品解离出硫酸蔗糖复合离子,复合离子聚合成不溶性的带负电荷的胶体,能与溃疡面带正电荷的蛋白质渗出物相结合,形成一层保护膜覆盖于溃疡面,促进溃疡愈合。还具有吸附胃蛋白酶和胆汁酸作用;促进内源性前列腺素的合成以及吸附表皮生长因子(EGF),使之在溃疡处浓集利于粘膜再生。当硫糖铝凝胶粒径低于100nm时流动性无法满足口服需要,当硫糖铝凝胶粒径高于500nm时无法满足药效。
发明内容
本发明的目的是为了解决现有技术的不足,提供一种粒径为100nm—500nm的硫糖铝凝胶的成胶方法。
本发明是通过如下技术方案来实现的:
一种粒径为100nm—500nm的硫糖铝凝胶的成胶方法,包括以下步骤:
(1)配料:按配方准备所需物料,包括硫糖铝、浓盐酸、氢氧化钠、氯化钠、香精和防腐剂;
(2)溶解:将硫糖铝混悬于纯净水中,加入浓盐酸搅拌,硫糖铝在强酸环境下溶解成澄清的溶液;
(3)成胶:控制温度为19-23℃,将浓度为1.1-1.2mol/L的氢氧化钠水溶液采用一定的流速加入罐中,中和浓盐酸,强酸环境逐渐向中性移动,当pH接近中性时,两性化合物硫糖铝溶解度下降,被沉淀出来,形成粒径均匀的颗粒,氢氧化钠水溶液的流速与底料体积的比例为0.011-0.012/min;
(4)离心洗涤:用离心法收集形成的凝胶,同时,弃去的上清液带走了氢氧化钠中和浓盐酸时形成的杂质氯化钠,经过洗涤后再离心,就得到纯净的粒径为100nm—500nm的硫糖铝凝胶。
与现有技术相比,该工艺采用液相成粒技术制备100nm—500nm粒径的硫糖铝凝胶,所制得的硫糖铝凝胶与常用药硫糖铝混悬液相比,平均粒径小10-20倍;制得的硫糖铝凝胶进入胃粘膜后,有更为强劲的粘附力和更长的粘附时间,可粘附在溃疡面,保护胃黏膜免受进一步的破坏。
具体实施方式
下面结合实施例对本发明做进一步说明,但本发明的保护范围不受实施例所限制。
实验例1
正交实验
表1、控制N为0.010/min时的平均粒径(nm)
表2、控制N为0.011/min时的平均粒径(nm)
表3、控制N为0.012/min时的平均粒径(nm)
表4、控制N为0.013/min时的平均粒径(nm)
由实验例1可知,通过正交实验确定了了硫糖铝成胶的三个关键控制参数,即温度(T),氢氧化钠浓度(M),流速和底料体积的比例(N),当T在19-23℃,M在1.1-1.2mol/L,N在0.011-0.012/min时,硫糖铝的成胶粒径会在100-500nm。
实施例1
一种粒径为100nm—500nm的硫糖铝凝胶的成胶方法,包括以下步骤:
(1)配料:按配方准备所需物料,包括硫糖铝、浓盐酸、氢氧化钠、氯化钠、香精和防腐剂;
(2)溶解:将硫糖铝混悬于纯净水中,加入浓盐酸搅拌,硫糖铝在强酸环境下溶解成澄清的溶液;
(3)成胶:控制温度为19-23℃,将浓度为1.1-1.2mol/L的氢氧化钠水溶液采用一定的流速加入罐中,中和浓盐酸,强酸环境逐渐向中性移动,当pH接近中性时,两性化合物硫糖铝溶解度下降,被沉淀出来,形成粒径均匀的颗粒,氢氧化钠水溶液的流速与底料体积的比例为0.011-0.012/min;
(4)离心洗涤:用离心法收集形成的凝胶,同时,弃去的上清液带走了氢氧化钠中和浓盐酸时形成的杂质氯化钠,经过洗涤后再离心,就得到纯净的粒径为100nm—500nm的硫糖铝凝胶。
制得的硫糖铝凝胶进入胃粘膜后,有更为强劲的粘附力和更长的粘附时间,可粘附在溃疡面,保护胃黏膜免受进一步的破坏。

Claims (1)

1.一种粒径为100nm—500nm的硫糖铝凝胶的成胶方法,其特征在于,包括以下步骤:
(1)配料:按配方准备所需物料,包括硫糖铝、浓盐酸、氢氧化钠、氯化钠、香精和防腐剂;
(2)溶解:将硫糖铝混悬于纯净水中,加入浓盐酸搅拌,硫糖铝在强酸环境下溶解成澄清的溶液;
(3)成胶:控制温度为19-23℃,将浓度为1.1-1.2mol/L的氢氧化钠水溶液采用一定的流速加入罐中,中和浓盐酸,强酸环境逐渐向中性移动,当pH接近中性时,两性化合物硫糖铝溶解度下降,被沉淀出来,形成粒径均匀的颗粒,氢氧化钠水溶液的流速与底料体积的比例为0.011-0.012/min;
(4)离心洗涤:用离心法收集形成的凝胶,同时,弃去的上清液带走了氢氧化钠中和浓盐酸时形成的杂质氯化钠,经过洗涤后再离心,就得到纯净的粒径为100nm—500nm的硫糖铝凝胶。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN88102143A (zh) * 1987-04-15 1988-12-28 利萨法尔玛公司 无悬浮剂的稳定的碱式蔗糖硫酸铝悬液药物组合物
JPH0395106A (ja) * 1989-06-16 1991-04-19 Lab It Biochim Pharmaceut Lisapharma Spa 局所活性を有する医薬品用又は化粧品用の担持剤としてのスクラルフェート湿潤ゲルの用途
US20030206950A1 (en) * 1998-07-30 2003-11-06 Giorgio Zagnoli Process for the preparation of granular and porous sucralfate dry gel
WO2018190493A1 (ko) * 2017-04-14 2018-10-18 한국프라임제약주식회사 수크랄페이트 합성 방법 및 이에 의한 수크랄페이트

Patent Citations (5)

* Cited by examiner, † Cited by third party
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CN88102143A (zh) * 1987-04-15 1988-12-28 利萨法尔玛公司 无悬浮剂的稳定的碱式蔗糖硫酸铝悬液药物组合物
JPS6445312A (en) * 1987-04-15 1989-02-17 Rizafuaruma Spa Sedimentation inhibitor-free stable scralfate suspension-state drug composition
JPH0395106A (ja) * 1989-06-16 1991-04-19 Lab It Biochim Pharmaceut Lisapharma Spa 局所活性を有する医薬品用又は化粧品用の担持剤としてのスクラルフェート湿潤ゲルの用途
US20030206950A1 (en) * 1998-07-30 2003-11-06 Giorgio Zagnoli Process for the preparation of granular and porous sucralfate dry gel
WO2018190493A1 (ko) * 2017-04-14 2018-10-18 한국프라임제약주식회사 수크랄페이트 합성 방법 및 이에 의한 수크랄페이트

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CLIFFORD TASMAN-JONES等: "Sucralfate Interactions with Gastric Mucus", 《THE AMERICAN JOURNAL OF MEDICINE》 *
何亚男等: "pH对硫糖铝混悬液凝胶形成和游离铝离子影响的实验研究", 《中国药学杂志》 *
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