scholarly journals Pure drug nano-assemblies: A facile carrier-free nanoplatform for efficient cancer therapy

Author(s):  
Shuwen Fu ◽  
Guanting Li ◽  
Wenli Zang ◽  
Xinyu Zhou ◽  
Kexin Shi ◽  
...  
BioFactors ◽  
2018 ◽  
Vol 44 (5) ◽  
pp. 496-502 ◽  
Author(s):  
Xiao Zheng ◽  
Fan Zhang ◽  
Dan Shao ◽  
Zhanqiang Zhang ◽  
Lianzhi Cui ◽  
...  

Author(s):  
Youwei Zhang ◽  
Qing Pei ◽  
Ying Yue ◽  
Zhigang Xie

Chemotherapy is the major strategy for cancer therapy, but its limited therapeutic efficiency and serious toxicity to normal tissues greatly restrict its clinical performance. Herein, we develop carrier-free self-activated prodrug...


Biomaterials ◽  
2013 ◽  
Vol 34 (35) ◽  
pp. 8960-8967 ◽  
Author(s):  
Mengjiao Zhou ◽  
Xiujuan Zhang ◽  
Yinlong Yang ◽  
Zhuang Liu ◽  
Baishun Tian ◽  
...  
Keyword(s):  

Nanoscale ◽  
2017 ◽  
Vol 9 (38) ◽  
pp. 14347-14356 ◽  
Author(s):  
Yan Wen ◽  
Wei Zhang ◽  
Ningqiang Gong ◽  
Yi-Feng Wang ◽  
Hong-Bo Guo ◽  
...  

Carrier-free nanodrug HCPT/Ce6 NRs were prepared through a simple self-assembly approach for chemo-photodynamic combination therapy of tumors in vivo.


2015 ◽  
Vol 16 (1) ◽  
pp. 29
Author(s):  
Azmairit Aziz ◽  
Nana Suherman

ABSTRAK KARAKTERISASI FISIKO-KIMIA RADIOISOTOP 149Pm HASIL IRADIASI BAHAN SASARAN 148Nd ALAM. Penyakit kanker merupakan salah satu masalah utama yang dihadapi Indonesia di bidang kesehatan. Radioisotop pemancar-β- dengan aktivitas jenis tinggi dapat digunakan untuk penandaan biomolekul sebagai radiofarmaka spesifik target untuk terapi sel kanker. Promesium-149 (149Pm) merupakan salah satu radiolantanida pemancar-β- yang me-miliki energi beta (Eβ-)maksimum sebesar 1,07 MeV (95,9 %) dan dapat dipertimbangkan untuk digunakan pada terapi kanker berdasarkan sifat nuklir yang dimilikinya. Radioisotop 149Pm dapat dibuat dengan cara tidak langsung melalui reaksi inti (n,γ) di reaktor nuklir menggunakan bahan sasaran isotop 148Nd (neodymium-148) dan radioisotop 149Pm yang dihasilkan adalah bebas pengemban (carrier free) sehingga memiliki aktivitas jenis tinggi. Pada penelitian ini digunakan bahan sasaran Nd2O3 alam yang diiradiasi selama ± 4 hari di Central Irradiation Position (CIP) RSG-G.A.Siwabessy – Serpong pada fluks neutron termal ~1014 n.cm-2.det-1. Radioisotop 149Pm dipisahkan dari bahan sasaran Nd2O3 hasil iradiasi menggunakan metode kromatografi ekstraksi. Larutan radioisotop 149PmCl3 yang dihasilkan dikarakterisasi secara fisiko-kimia meliputi penentuan kemurnian radiokimia menggunakan metode kromatografi kertas dan elektroforesis kertas. Kemurnian radionuklida ditentukan menggunakan spektro-meter-γ dengan detektor HP-Ge yang dilengkapi multichannel analyzer (MCA). Larutan 149PmCl3 yang diperoleh berupa larutan jernih, memiliki pH 2 dan konsentrasi radioaktif 4,2 – 7,4 mCi/mL. Larutan 149PmCl3 memiliki kemurnian radiokimia 99,70 ± 0,23% dan kemurnian radionuklida setelah pendinginan selama 9 hari sebesar 98,58 ± 0,44%. Larutan 149PmCl3 stabil selama 2 minggu pada temperatur kamar. Larutan radioisotop 149PmCl3 memiliki karakteristik fisiko-kimia yang memenuhi persyaratan untuk digunakan dalam pembuatan radiofarmaka ABSTRACT  PHYSICO - CHEMICAL CHARACTERIZATION OF 149Pm RADIOISOTOPE FROM IRRADIATED NATURAL 148Nd TARGET. Cancer is one of the major problems encountered in the field of health in Indonesia. A beta-emitting radioisotope with high specific activity can be used for labeling of biomolecules as a targeted radiopharmaceutical for cancer therapy. Promethium-149 (149Pm) is one of beta-emitting radiolanthanides with beta energy (Eβ-) maximum of 1.07 MeV (95.9%) and can be considered to be used for cancer therapy based on its nuclear properties. Radioisotope of 149Pm can be produced by indirect methode through (n,γ) reaction in nuclear reactor using 148Nd (neodymium-148) target material and 149Pm was produced as a carrier free radioisotope, so that it has high specific activity. In this study, natural Nd2O3 target was irradiated for ± 4 days in central irradiation position (CIP) of RSG-G.A. Siwabessy – Serpong at a thermal neutron flux of ~ 1014 n.cm-2.sec-1. Radioisotope of 149Pm was separated from irradiated of Nd2O3 target using extraction chromatography method. The physico-chemical characterization of 149PmCl3 solution was studied involves the determination of its radiochemical purity using paper chromatography and paper electrophoresis methods. The radionuclide purity was determined using a γ-spectrometer with  HP-Ge detector and coupled with a multichannel analyzer (MCA). 149PmCl3 was obtained as a clear solution, has a pH of 2 and  radioactive concentration of 4.2 to 7.4 mCi/mL. 149PmCl3 solution has radiochemical purity of 99.70 ± 0.23% and radionuclide purity after cooling for 9 days of 98.58 ± 0.44%. 149PmCl3 solution was stable for 2 weeks at room temperature. 149PmCl3 solution has the physico-chemical characteristics that meet requirements for use in preparation of radiopharmaceuticals.


Small ◽  
2020 ◽  
Vol 16 (49) ◽  
pp. 2004829
Author(s):  
Changping Wang ◽  
Lin Li ◽  
Song Zhang ◽  
Yang Yan ◽  
Quan Huang ◽  
...  

2018 ◽  
Vol 19 (10) ◽  
pp. 2963 ◽  
Author(s):  
Ying Wang ◽  
Pengfei Yang ◽  
Xinrui Zhao ◽  
Di Gao ◽  
Na Sun ◽  
...  

Nanocarriers encapsulating multiple chemotherapeutics are a promising strategy to achieve combinational chemotherapy for cancer therapy; however, they generally use exotic new carriers without therapeutic effect, which usually suffer from carrier-related toxicity issues, as well as having to pass extensive clinical trials to be drug excipients before any clinical applications. Cargo-free nanomedicines, which are fabricated by drugs themselves without new excipients and possess nanoscale characteristics to realize favorable pharmacokinetics and intracellular delivery, have been rapidly developed and drawn much attention to cancer treatment. Herein, we discuss recent advances of cargo-free nanomedicines for cancer treatment. After a brief introduction to the major types of carrier-free nanomedicine, some representative applications of these cargo-free nanomedicines are discussed, including combination therapy, immunotherapy, as well as self-monitoring of drug release. More importantly, this review draws a brief conclusion and discusses the future challenges of cargo-free nanomedicines from our perspective.


2021 ◽  
Vol 331 ◽  
pp. 460-471
Author(s):  
Lei Xing ◽  
Chen-Xi Yang ◽  
Di Zhao ◽  
Li-Jun Shen ◽  
Tian-Jiao Zhou ◽  
...  

2019 ◽  
Vol Volume 14 ◽  
pp. 8665-8683 ◽  
Author(s):  
Yuping Zhao ◽  
Yanna Zhao ◽  
Qisan Ma ◽  
Bin Sun ◽  
Qingpeng Wang ◽  
...  

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