Polymer microcapsules as mobile local pH-sensors

被引：210

作者：

Kreft, Oliver

Javier, Almudena Munoz

Sukhorukov, Gleb B.

Parak, Wolfgang J. ^{[1
]}

机构：

[1] Max Planck Inst Colloids & Interface, Potsdam, Germany

[2] Univ Munich, Ctr Nanosci, Munich, Germany

[3] Univ London Queen Mary, Dept Mat, London E1 4NS, England

[4] Univ Marburg, Fachbereich Phys, Marburg, Germany

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2007年 / 17卷 / 42期

关键词：

D O I：

10.1039/b705419j

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polyelectrolyte microcapsules have been loaded with a pH- sensitive, high molecular weight SNARF-1-dextran conjugate. SNARF-1 exhibits a significant pH-dependent emission shift from green to red fluorescence under acidic and basic conditions, respectively. The unique spectral properties of the dye were maintained after the encapsulation. By investigating both human breast cancer cells and fibroblasts, we were able to follow the pH change of the local environment of SNARF-1-filled capsules during the transition from the alkaline cell medium to the acidic endosomal/lysosomal compartments. The incorporation of magnetite nanoparticles and an additional pH-insensitive fluorophore within the capsule shell resulted in a novel type of sensor system based on multifunctional polymer capsules.

引用

页码：4471 / 4476

页数：6

共 50 条

[1] Polyaniline, a conducting polymer for pH-sensors?
vandeLeur, RHM
vanderWaal, A
deHaan, PH
EUROMAT 97 - PROCEEDINGS OF THE 5TH EUROPEAN CONFERENCE ON ADVANCED MATERIALS AND PROCESSES AND APPLICATIONS: MATERIALS, FUNCTIONALITY & DESIGN, VOL 3: SURFACE ENGINEERING AND FUNCTIONAL MATERIALS, 1997, : 463 - 466
[2] Halochromic textile materials as innovative pH-sensors
Van der Schueren, Lien
De Clerck, Karen
SMART AND INTERACTIVE TEXTILES, 2013, 80 : 47 - +
[3] PH-SENSORS BASED ON THE SEMICONDUCTOR DIELECTRIC ELECTROLYTE INTERFACE
MADOU, M
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1983, 130 (08) : C330 - C330
[4] Silicon nanowire structures as high-sensitive pH-sensors
Belostotskaya, S. O.
Chuyko, O. V.
Kuznetsov, A. E.
Kuznetsov, E. V.
Rybachek, E. N.
IV NANOTECHNOLOGY INTERNATIONAL FORUM (RUSNANOTECH 2011), 2012, 345
[5] Synthesis and Validation of Functional Nanogels as pH-Sensors in the Hair Follicle
Dimde, Mathias
Sahle, Fitsum Feleke
Wycisk, Virginia
Steinhilber, Dirk
Camacho, Luis Cuellar
Licha, Kai
Lademann, Juergen
Haag, Rainer
MACROMOLECULAR BIOSCIENCE, 2017, 17 (10)
[6] Green synthesis of fluorescent copper nanoclusters for reversible pH-sensors
Qian, Yunyun
Xu, Ting
Zhang, Yan
Zhang, Caihong
Shi, Lihong
Zhang, Guomei
Shuang, Shaomin
Dong, Chuan
SENSORS AND ACTUATORS B-CHEMICAL, 2015, 220 : 1064 - 1069
[7] Impedance spectroscopy on pH-sensors with lithium lanthanum titanate sensitive material
Bohnke, C
Fourquet, JL
ELECTROCHIMICA ACTA, 2003, 48 (13) : 1869 - 1878
[8] CHARACTERIZATION AND MODELLING OF DIFFERENTIAL SENSITIVITY OF NANORIBBON-BASED PH-SENSORS
Scarbolo, P.
Accastelli, E.
Pittino, F.
Ernst, T.
Guiducci, C.
Selmi, L.
2015 TRANSDUCERS - 2015 18TH INTERNATIONAL CONFERENCE ON SOLID-STATE SENSORS, ACTUATORS AND MICROSYSTEMS (TRANSDUCERS), 2015, : 2188 - 2191
[9] l-Tyrosine protected Cu nanoclusters for reversible pH-sensors
Cai, Zhifeng
Zhang, Caifeng
Jia, Kang
CHEMICAL PAPERS, 2020, 74 (06): : 1831 - 1838
[10] l-Tyrosine protected Cu nanoclusters for reversible pH-sensors
Zhifeng Cai
Caifeng Zhang
Kang Jia
Chemical Papers, 2020, 74 : 1831 - 1838

← 1 2 3 4 5 →