CN111097046B - 一种“关-开”型可视化诊疗纳米探针 - Google Patents
一种“关-开”型可视化诊疗纳米探针 Download PDFInfo
- Publication number
- CN111097046B CN111097046B CN201911310174.7A CN201911310174A CN111097046B CN 111097046 B CN111097046 B CN 111097046B CN 201911310174 A CN201911310174 A CN 201911310174A CN 111097046 B CN111097046 B CN 111097046B
- Authority
- CN
- China
- Prior art keywords
- solution
- gold nanocluster
- mesoporous silica
- stirring
- centrifuging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K41/00—Medicinal preparations obtained by treating materials with wave energy or particle radiation ; Therapies using these preparations
- A61K41/0057—Photodynamic therapy with a photosensitizer, i.e. agent able to produce reactive oxygen species upon exposure to light or radiation, e.g. UV or visible light; photocleavage of nucleic acids with an agent
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/69—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit
- A61K47/6949—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit inclusion complexes, e.g. clathrates, cavitates or fullerenes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/06—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations
- A61K49/08—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by the carrier
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/06—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations
- A61K49/18—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes
- A61K49/1818—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes particles, e.g. uncoated or non-functionalised microparticles or nanoparticles
- A61K49/1821—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes particles, e.g. uncoated or non-functionalised microparticles or nanoparticles coated or functionalised microparticles or nanoparticles
- A61K49/1824—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by a special physical form, e.g. emulsions, microcapsules, liposomes particles, e.g. uncoated or non-functionalised microparticles or nanoparticles coated or functionalised microparticles or nanoparticles coated or functionalised nanoparticles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/51—Nanocapsules; Nanoparticles
- A61K9/5107—Excipients; Inactive ingredients
- A61K9/5115—Inorganic compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/51—Nanocapsules; Nanoparticles
- A61K9/5107—Excipients; Inactive ingredients
- A61K9/5123—Organic compounds, e.g. fats, sugars
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Pharmacology & Pharmacy (AREA)
- Medicinal Chemistry (AREA)
- Nanotechnology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biochemistry (AREA)
- Molecular Biology (AREA)
- Inorganic Chemistry (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Abstract
本发明公开了一种“关‑开”型可视化诊疗纳米探针,其结构为金纳米簇@介孔二氧化硅@二氧化锰;其制备是:a)将谷胱甘肽加入到氯金酸溶液中,冰浴搅拌;加入四丁基硼氢化铵,调节pH至2‑4;离心透析,得到金纳米簇溶液;b)将CTAB加入金纳米簇中,搅拌;调节pH至8‑10,加正硅酸乙酯,持续搅拌;至有乳白色物质生成时,加入乙酸乙酯和N‑[3‑(三甲氧基硅基)]丙基]乙二胺;搅拌反应离心,将沉淀物分散至水中得金纳米簇@介孔二氧化硅;c)取金纳米簇@介孔二氧化硅,加高锰酸钾和甲酰胺,超声反应后离心,将沉淀物分散至水中,得AuNCs@mSiO2@MnO2。本发明的探针具有磁共振成像和光动力治疗功能,可应用于肿瘤磁共振成像诊断和光动力治疗中。
Description
技术领域
本发明涉及纳米探针,具体的说是一种“关-开”型可视化诊疗纳米探针。
背景技术
随着生物纳米技术的发展,以纳米材料为基本单元的分子探针在肿瘤诊断和治疗中发挥着越来越重要的作用。然而,传统的纳米探针不具有靶向功能,或者靶向型纳米探针的体内可靠性不高,不仅对正常机体组织带来了潜在威胁,而且降低了诊疗效率,限制了其在肿瘤精准诊疗中的应用。如果可以构建肿瘤微环境响应型纳米探针,不仅可以提高纳米探针在肿瘤部位的富集,提高诊疗性能,而且利用纳米探针的 “关-开”特性,可以降低正常组织对纳米探针的非特异性摄取。
发明内容
本发明的目的是提供一种“关-开”型可视化诊疗纳米探针,以解决传统纳米探针不具有靶向功能,或者由于靶向性纳米探针在体内可靠性差而导致诊疗效率低、应用受限的问题。
本发明的目的是这样实现的:
一种“关-开”型可视化诊疗纳米探针,该探针的结构为金纳米簇@介孔二氧化硅@二氧化锰。
所述的“关-开”型可视化诊疗纳米探针,按照如下方法制备:
a)制备金纳米簇:
将0.01-0.1g谷胱甘肽加入到20mL浓度为2-20mM的氯金酸溶液中,并于冰浴中搅拌;然后迅速加入0.05-0.2g四丁基硼氢化铵,再用盐酸调节溶液pH至2-4;然后离心,取上清液进行透析,得到棕黄色的金纳米簇溶液;
b)制备金纳米簇@介孔二氧化硅:
将0.03-0.3g的十六烷基三甲基溴化铵(CTAB)加入到10mL步骤a)所制备的金纳米簇溶液中,持续搅拌;用氢氧化钠溶液调节pH至8-10,然后迅速加入0.08-0.8mL正硅酸乙酯,持续搅拌;至体系中有乳白色物质生成时,加入1-5mL乙酸乙酯和30-300μL N-[3-(三甲氧基硅基)]丙基]乙二胺;搅拌反应1-3h后离心,将沉淀物分散至100mL水中,即得到乳白色的金纳米簇@介孔二氧化硅溶液;
c)制备金纳米簇@介孔二氧化硅@二氧化锰:
取步骤b)制备好的金纳米簇@介孔二氧化硅溶液50mL,加入0.01-0.05g高锰酸钾和0.1-0.8mL甲酰胺,超声反应0.5-2h后离心,将沉淀物分散至100mL水中,得到灰黑色的金纳米簇@介孔二氧化硅@二氧化锰溶液。
进一步的,步骤a)中,谷胱甘肽的用量优选为0.03-0.06g;氯金酸的浓度优选为8-12mM;四丁基硼氢化铵的用量优选为0.08-0.15g。
进一步的,步骤b)中其中CTAB的用量优选为0.1g;pH值优选为9;正硅酸乙酯的体积优选为0.4 mL;乙酸乙酯的体积优选为2.5mL;N-[3-(三甲氧基硅基)]丙基]乙二胺的体积优选为150μL;反应时间优选为1.5小时。
进一步的,步骤c)中,高锰酸钾的用量优选为0.025g;甲酰胺的体积优选为0.45mL;反应时间优选为1小时。
本发明的金纳米簇@介孔二氧化硅@二氧化锰(AuNCs@mSiO2@MnO2)纳米探针具有磁共振成像和光动力治疗功能,可应用于肿瘤磁共振成像诊断和光动力治疗中。在正常生理环境中,该纳米探针表面被MnO2层保护,激光照射不会产生活性氧自由基(关)。在肿瘤微环境中,肿瘤细胞中的谷胱甘肽降解MnO2层,恢复产生活性氧自由基(开),降解产生的Mn2+提供磁共振成像功能。
附图说明
图1是实施例1制备的AuNCs@mSiO2的透射电镜图。
图2是实施例1制备的AuNCs@mSiO2@MnO2的透射电镜图。
图3是实施例2制备的AuNCs@mSiO2@MnO2被谷胱甘肽降解后的透射电镜图。
图4是实施例3制备的AuNCs@mSiO2、AuNCs@mSiO2@MnO2和被谷胱甘肽降解的AuNCs@mSiO2@MnO2,在808纳米激光照射下,溶液中的DPBF的吸光度随辐照时间的变化情况。
图5是实施例4制备的AuNCs@mSiO2@MnO2被谷胱甘肽降解前后的磁共振弛豫曲线。
具体实施方式
实施例1
a)将0.05g的谷胱甘肽加入到20mL浓度为10 mM的氯金酸溶液中,并在冰浴中进行搅拌,然后迅速加入0.1g的四丁基硼氢化铵,用盐酸调节溶液的pH值为3,离心、取其上清液进行透析(半透膜截留分子量≤3500,24h),得到金纳米簇溶液。
b)将0.1g的CTAB加入到10 mL金纳米簇溶液中,持续搅拌;用氢氧化钠调节其pH值为8,迅速加入0.4mL的正硅酸乙酯;搅拌至乳白色物质生成时,加入2.5 mL的乙酸乙酯和150 μL的N-[3-(三甲氧基硅基)]丙基]乙二胺;搅拌反应1.5小时后,将产物离心、水洗,分散至100 mL水中,得到AuNCs@SiO2溶液。
c)在体积为50mL的AuNCs@SiO2溶液中加入0.025g高锰酸钾和0.45mL甲酰胺,超声反应1小时,将产物离心、水洗,分散至100 mL水中,得到AuNCs@mSiO2@MnO2溶液。
利用透射电子显微镜分别对步骤b)制备的AuNCs@mSiO2和步骤c)制备的AuNCs@mSiO2@MnO2进行表征,结果如图1和2。从图1中可以看出,AuNCs@mSiO2为球形,整体尺寸约为100-200纳米,尺寸在2-5纳米的金纳米簇包裹在介孔二氧化硅内部。从图2中可以看出,AuNCs@mSiO2@MnO2的表面被层状的二氧化锰覆盖,片层厚度约为5纳米。
实施例2
a)将0.1g的谷胱甘肽加入到20mL浓度为18 mM的氯金酸溶液中,并在冰浴中进行搅拌,然后迅速加入0.18g的四丁基硼氢化铵,用盐酸调节溶液的pH值为4,离心、取其上清液进行透析(半透膜截留分子量≤3500,24h),得到金纳米簇溶液。
b)将0.2g的CTAB加入到10 mL金纳米簇溶液中,用氢氧化钠调节其pH值为10,迅速加入0.6mL的正硅酸乙酯;搅拌至乳白色物质生成时,加入4 mL的乙酸乙酯和200 μL的N-[3-(三甲氧基硅基)]丙基]乙二胺;搅拌反应3小时后,将产物离心、水洗,分散至100 mL水中,得到AuNCs@SiO2溶液。
c)在体积为50mL的AuNCs@SiO2溶液中加入0.04g高锰酸钾和0.6mL甲酰胺,超声反应1小时,将产物离心、水洗,分散至100 mL水中,得到AuNCs@mSiO2@MnO2。
在AuNCs@mSiO2@MnO2溶液中加入1 mL的0.1mM的谷胱甘肽,搅拌反应3小时,离心、将沉淀分散至分100 mL水中。利用透射电子显微镜对谷胱甘肽降解后的AuNCs@mSiO2@MnO2进行表征,结果如图3。从图3中可以看出,表面的层状二氧化锰已经消失,表明谷胱甘肽能够降解二氧化锰。
实施例3
a)将0.03g的谷胱甘肽加入到20mL浓度为8 mM的氯金酸溶液中,并在冰浴中进行搅拌,然后迅速加入0.075g的四丁基硼氢化铵,用盐酸调节溶液的pH值为5,离心、取其上清液进行透析(半透膜截留分子量≤3500,24h),得到金纳米簇溶液。
b)将0.05g的CTAB加入到10 mL金纳米簇溶液中,用氢氧化钠调节其pH值为9,迅速加入0.2 mL的正硅酸乙酯;搅拌至乳白色物质生成时,加入2 mL的乙酸乙酯和100 μL的N-[3-(三甲氧基硅基)]丙基]乙二胺;搅拌反应2小时后,将产物离心、水洗,分散至100 mL水中,得到AuNCs@SiO2溶液。
c)在体积为50 mL的AuNCs@SiO2溶液中加入0.02 g高锰酸钾和0.2 mL甲酰胺,超声反应2小时,将产物离心、水洗,分散至100 mL水中,得到AuNCs@mSiO2@MnO2。
在AuNCs@mSiO2@MnO2溶液中加入1 mL的0.075mM的谷胱甘肽,搅拌反应2小时,离心、将沉淀分散至分100 mL水中。将DPBF加入到AuNCs@mSiO2、AuNCs@mSiO2@MnO2和被谷胱甘肽降解后的AuNCs@mSiO2@MnO2溶液中,然后利用808nm激光对以上溶液进行照射1-5分钟,离心取其上清进行紫外-可见吸收光谱测量,比较DPBF吸光度的变化,结果如图4。从图4中可以看出,当808纳米激光照射5分钟时,在AuNCs@mSiO2和被谷胱甘肽降解的AuNCs@mSiO2@MnO2溶液中,DPBF吸光度降低至57%左右,显示产生的活性氧自由基与DPBF发生了反应;但在AuNCs@mSiO2@MnO2溶液中,DPBF吸收光基本不变,显示没有活性氧自由基产生。结果表明谷胱甘肽响应型的AuNCs@mSiO2@MnO2具有“关-开”的光动力治疗性能。
实施例4
a)将0.08g的谷胱甘肽加入到20mL浓度为12 mM的氯金酸溶液中,并在冰浴中进行搅拌,然后迅速加入0.05g的四丁基硼氢化铵,用盐酸调节溶液的pH值为4,离心、取其上清液进行透析(半透膜截留分子量≤3500,24h),得到金纳米簇溶液。
b)将0.08g的CTAB加入到10 mL金纳米簇溶液中,用氢氧化钠调节其pH值为10,迅速加入0.4 mL的正硅酸乙酯;搅拌至乳白色物质生成时,加入4 mL的乙酸乙酯和200 μL的N-[3-(三甲氧基硅基)]丙基]乙二胺;搅拌反应1.5小时后,将产物离心、水洗,分散至100mL水中,得到AuNCs@SiO2溶液。
c)在体积为50 mL的AuNCs@SiO2溶液中加入0.04 g高锰酸钾和0.075 mL甲酰胺,超声反应3小时,将产物离心、水洗,分散至100 mL水中,得到AuNCs@mSiO2@MnO2。
在AuNCs@mSiO2@MnO2溶液中加入1 mL的0.05mM的谷胱甘肽,搅拌反应1小时,离心、将沉淀分散至分100 mL水中。将AuNCs@mSiO2@MnO2和被谷胱甘肽降解后的AuNCs@mSiO2@MnO2溶液稀释为不同浓度,进行磁共振成像性能表征,比较两种材料的弛豫效率,结果如图5。从图5中可以看出,未经谷胱甘肽降解的AuNCs@mSiO2@MnO2的磁共振弛豫效率为41.65mM-1·s-1,但谷胱甘肽降解后的AuNCs@mSiO2@MnO2的磁共振弛豫效率增大为102.93mM-1·s-1,表明谷胱甘肽响应型的AuNCs@mSiO2@MnO2具有增强的磁共振成像性能。
Claims (1)
1.一种“关-开”型可视化诊疗纳米探针,其特征是,该探针的结构为金纳米簇@介孔二氧化硅@二氧化锰;
该探针按照如下方法制备:
a)制备金纳米簇:
将0.01-0.1g谷胱甘肽加入到20mL浓度为2-20mM的氯金酸溶液中,并于冰浴中搅拌;然后迅速加入0.05-0.2g四丁基硼氢化铵,再用盐酸调节溶液pH至2-4;然后离心,取上清液进行透析,得到棕黄色的金纳米簇溶液;
b)制备金纳米簇@介孔二氧化硅:
将0.03-0.3g的十六烷基三甲基溴化铵加入到10mL步骤a)所制备的金纳米簇溶液中,持续搅拌;用氢氧化钠溶液调节pH至8-10,然后迅速加入0.08-0.8mL正硅酸乙酯,持续搅拌;至体系中有乳白色物质生成时,加入1-5mL乙酸乙酯和30-300μL N-[3-(三甲氧基硅基)丙基]乙二胺;搅拌反应1-3h后离心,将沉淀物分散至100mL水中,即得到乳白色的金纳米簇@介孔二氧化硅溶液;
c)制备金纳米簇@介孔二氧化硅@二氧化锰:
取步骤b)制备好的金纳米簇@介孔二氧化硅溶液50mL,加入0.01-0.05g高锰酸钾和0.1-0.8mL甲酰胺,超声反应0.5-2h后离心,将沉淀物分散至100mL水中,得到灰黑色的金纳米簇@介孔二氧化硅@二氧化锰溶液。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911310174.7A CN111097046B (zh) | 2019-12-18 | 2019-12-18 | 一种“关-开”型可视化诊疗纳米探针 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911310174.7A CN111097046B (zh) | 2019-12-18 | 2019-12-18 | 一种“关-开”型可视化诊疗纳米探针 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111097046A CN111097046A (zh) | 2020-05-05 |
CN111097046B true CN111097046B (zh) | 2022-05-27 |
Family
ID=70422369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201911310174.7A Active CN111097046B (zh) | 2019-12-18 | 2019-12-18 | 一种“关-开”型可视化诊疗纳米探针 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111097046B (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112494666B (zh) * | 2020-12-08 | 2023-04-07 | 南方科技大学 | 一种t1-t2双激活磁共振成像造影剂及其制备方法和应用 |
CN113499452B (zh) * | 2021-06-11 | 2022-12-23 | 东华大学 | 一种负载金和二氧化锰纳米颗粒的聚n-乙烯基己内酰胺纳米凝胶及其制备和应用 |
CN114652829B (zh) * | 2022-03-16 | 2024-03-26 | 中国科学院宁波材料技术与工程研究所 | 一种铃铛型纳米诊疗剂及其制备方法和应用 |
CN115120720B (zh) * | 2022-07-03 | 2023-07-14 | 重庆医科大学 | 一种金属多酚网络包覆二氧化锰纳米粒及其制备方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108096586A (zh) * | 2017-12-05 | 2018-06-01 | 上海大学 | 基于二氧化锰修饰的双响应药物释放体系的制备方法、制品与应用 |
-
2019
- 2019-12-18 CN CN201911310174.7A patent/CN111097046B/zh active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108096586A (zh) * | 2017-12-05 | 2018-06-01 | 上海大学 | 基于二氧化锰修饰的双响应药物释放体系的制备方法、制品与应用 |
Non-Patent Citations (2)
Title |
---|
"Nucleus-Targeting Gold Nanoclusters for Simultaneous In Vivo Fluorescence Imaging, Gene Delivery,and NIR-Light Activated Photodynamic Therapy";Raviraj Vankayala等;《Adv. Funct. Mater.》;20150828;第25卷;第5934页右栏,第5935页左栏 * |
"Tumor Microenvironment-Responsive Mesoporous MnO2-Coated Upconversion Nanoplatform for Self-Enhanced Tumor Theranostics";Jiating Xu等;《Adv. Funct. Mater.》;20180713;第28卷;第1803804-2页,Scheme 1 * |
Also Published As
Publication number | Publication date |
---|---|
CN111097046A (zh) | 2020-05-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111097046B (zh) | 一种“关-开”型可视化诊疗纳米探针 | |
Wu et al. | Manganese dioxide nanosheets: from preparation to biomedical applications | |
Zhou et al. | Enriching Mn-doped ZnSe quantum dots onto mesoporous silica nanoparticles for enhanced fluorescence/magnetic resonance imaging dual-modal bio-imaging | |
Peng et al. | Nanostructured magnetic nanocomposites as MRI contrast agents | |
Chen et al. | Label-free luminescent mesoporous silica nanoparticles for imaging and drug delivery | |
Liu et al. | Amino-functionalized green fluorescent carbon dots as surface energy transfer biosensors for hyaluronidase | |
Liberman et al. | Mechanically tunable hollow silica ultrathin nanoshells for ultrasound contrast agents | |
CN107661512A (zh) | 一种MnO2包裹聚多巴胺的纳米颗粒及制备方法和应用 | |
Ding et al. | MnFe 2 O 4-decorated large-pore mesoporous silica-coated upconversion nanoparticles for near-infrared light-induced and O 2 self-sufficient photodynamic therapy | |
CN109926579B (zh) | 一种金@二氧化锰超级纳米粒子及其制备方法 | |
Sha et al. | Manganese-doped gold core mesoporous silica particles as a nanoplatform for dual-modality imaging and chemo-chemodynamic combination osteosarcoma therapy | |
Xu et al. | Bioresponsive upconversion nanostructure for combinatorial bioimaging and chemo-photothermal synergistic therapy | |
CN109289050B (zh) | 一种四氧化三铁/聚吡咯/葡萄糖氧化酶复合多功能纳米诊疗剂及其制备方法和应用 | |
CN108310397B (zh) | 一种具有sers/荧光双模态靶向肿瘤细胞成像的诊疗试剂及其制备方法 | |
CN105412948A (zh) | 多功能含钆空心介孔普鲁士蓝纳米诊疗剂及其制备方法和应用 | |
Li et al. | MnO 2 nanosheets anchored with polypyrrole nanoparticles as a multifunctional platform for combined photothermal/photodynamic therapy of tumors | |
CN106963951B (zh) | 氧化石墨烯/钨酸锰/聚乙二醇纳米杂化材料及其制备 | |
Zeng et al. | Combined photothermotherapy and chemotherapy of oral squamous cell carcinoma guided by multifunctional nanomaterials enhanced photoacoustic tomography | |
CN113350524B (zh) | 一种肿瘤微环境响应的铁封堵磁性纳米药物及制备方法与应用 | |
CN109453393B (zh) | 制备超小荧光二氧化硅纳米颗粒的方法 | |
Belyaev et al. | Laser‐Synthesized Germanium Nanoparticles as Biodegradable Material for Near‐Infrared Photoacoustic Imaging and Cancer Phototherapy | |
CN106398681B (zh) | 基于二氧化硅的pH敏感的荧光纳米材料、其制备方法及其应用 | |
Li et al. | Amphiphilic polymer-encapsulated Au nanoclusters with enhanced emission and stability for highly selective detection of hypochlorous acid | |
CN113681020B (zh) | 具有抗蛋白吸附性能和光动力效应的复合材料及制备方法 | |
Silva et al. | Gold nanoparticle-loaded silica nanospheres for sensitive and selective electrochemical detection of Bisphenol A |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |